[   25.775589][  T240] ip (240) used greatest stack depth: 23872 bytes left
[   41.049683][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[   41.050167][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   41.050167][   T10]      dst_init+0x84/0x4a0
[   41.050167][   T10]      dst_alloc+0x97/0x150
[   41.050167][   T10]      ip6_dst_alloc+0x23/0x90
[   41.050167][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   41.050167][   T10]      ip6_pol_route+0x56f/0x840
[   41.050167][   T10]      fib6_rule_lookup+0x456/0x630
[   41.050167][   T10]      ip6_route_input+0x59c/0xa50
[   41.050167][   T10]      ipv6_rcv+0x397/0x810
[   41.050167][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[   41.050167][   T10]      process_backlog+0x101/0x620
[   41.050167][   T10]      __napi_poll.constprop.0+0xa2/0x460
[   41.050167][   T10]      net_rx_action+0x495/0xbe0
[   41.050167][   T10]      __do_softirq+0x1b5/0x7f6
[   41.050167][   T10] 
[   41.052349][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   41.052349][   T10]      netdev_get_by_index+0x5e/0x80
[   41.052349][   T10]      fib6_nh_init+0x3d8/0x1580
[   41.052349][   T10]      ip6_route_info_create+0xf18/0x17d0
[   41.052349][   T10]      ip6_route_add+0x1c/0x140
[   41.052349][   T10]      addrconf_prefix_route+0x2a6/0x430
[   41.052349][   T10]      inet6_addr_add+0x4f8/0xa40
[   41.052349][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   41.052349][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   41.052349][   T10]      netlink_rcv_skb+0x130/0x360
[   41.052349][   T10]      netlink_unicast+0x449/0x710
[   41.052349][   T10]      netlink_sendmsg+0x723/0xbe0
[   41.052349][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   41.052349][   T10]      ___sys_sendmsg+0xee/0x170
[   41.052349][   T10]      __sys_sendmsg+0xcd/0x170
[   41.052349][   T10]      do_syscall_64+0xc6/0x1e0
[   41.052349][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   41.052349][   T10] 
[   41.054629][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   41.054629][   T10]      netdev_get_by_index+0x5e/0x80
[   41.054629][   T10]      fib6_nh_init+0x3d8/0x1580
[   41.054629][   T10]      ip6_route_info_create+0xf18/0x17d0
[   41.054629][   T10]      addrconf_f6i_alloc+0x315/0x560
[   41.054629][   T10]      ipv6_add_addr+0x411/0x2000
[   41.054629][   T10]      inet6_addr_add+0x30e/0xa40
[   41.054629][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   41.054629][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   41.054629][   T10]      netlink_rcv_skb+0x130/0x360
[   41.054629][   T10]      netlink_unicast+0x449/0x710
[   41.054629][   T10]      netlink_sendmsg+0x723/0xbe0
[   41.054629][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   41.054629][   T10]      ___sys_sendmsg+0xee/0x170
[   41.054629][   T10]      __sys_sendmsg+0xcd/0x170
[   41.054629][   T10]      do_syscall_64+0xc6/0x1e0
[   41.054629][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   41.054629][   T10] 
[   41.056888][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   41.056888][   T10]      netdev_get_by_index+0x5e/0x80
[   41.056888][   T10]      fib6_nh_init+0x3d8/0x1580
[   41.056888][   T10]      ip6_route_info_create+0xf18/0x17d0
[   41.056888][   T10]      ip6_route_add+0x1c/0x140
[   41.056888][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[   41.056888][   T10]      addrconf_add_dev+0xe2/0x170
[   41.056888][   T10]      inet6_addr_add+0x12f/0xa40
[   41.056888][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   41.056888][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   41.056888][   T10]      netlink_rcv_skb+0x130/0x360
[   41.056888][   T10]      netlink_unicast+0x449/0x710
[   41.056888][   T10]      netlink_sendmsg+0x723/0xbe0
[   41.056888][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   41.056888][   T10]      ___sys_sendmsg+0xee/0x170
[   41.056888][   T10]      __sys_sendmsg+0xcd/0x170
[   41.056888][   T10]      do_syscall_64+0xc6/0x1e0
[   41.056888][   T10] 
[   41.059109][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   41.059109][   T10]      ipv6_add_dev+0x3ba/0x11c0
[   41.059109][   T10]      ipv6_find_idev+0x102/0x170
[   41.059109][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   41.059109][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   41.059109][   T10]      netlink_rcv_skb+0x130/0x360
[   41.059109][   T10]      netlink_unicast+0x449/0x710
[   41.059109][   T10]      netlink_sendmsg+0x723/0xbe0
[   41.059109][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   41.059109][   T10]      ___sys_sendmsg+0xee/0x170
[   41.059109][   T10]      __sys_sendmsg+0xcd/0x170
[   41.059109][   T10]      do_syscall_64+0xc6/0x1e0
[   41.059109][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   41.059109][   T10] 
[   41.060846][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   41.060846][   T10]      neigh_parms_alloc+0x1e5/0x510
[   41.060846][   T10]      ipv6_add_dev+0x2fe/0x11c0
[   41.060846][   T10]      ipv6_find_idev+0x102/0x170
[   41.060846][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   41.060846][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   41.060846][   T10]      netlink_rcv_skb+0x130/0x360
[   41.060846][   T10]      netlink_unicast+0x449/0x710
[   41.060846][   T10]      netlink_sendmsg+0x723/0xbe0
[   41.060846][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   41.060846][   T10]      ___sys_sendmsg+0xee/0x170
[   41.060846][   T10]      __sys_sendmsg+0xcd/0x170
[   41.060846][   T10]      do_syscall_64+0xc6/0x1e0
[   41.060846][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   41.060846][   T10] 
[   41.062780][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[   41.063189][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   41.063189][   T10]      dst_init+0x84/0x4a0
[   41.063189][   T10]      dst_alloc+0x97/0x150
[   41.063189][   T10]      ip6_dst_alloc+0x23/0x90
[   41.063189][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   41.063189][   T10]      ip6_pol_route+0x56f/0x840
[   41.063189][   T10]      fib6_rule_lookup+0x456/0x630
[   41.063189][   T10]      ip6_route_input+0x59c/0xa50
[   41.063189][   T10]      ipv6_rcv+0x397/0x810
[   41.063189][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[   41.063189][   T10]      process_backlog+0x101/0x620
[   41.063189][   T10]      __napi_poll.constprop.0+0xa2/0x460
[   41.063189][   T10]      net_rx_action+0x495/0xbe0
[   41.063189][   T10]      __do_softirq+0x1b5/0x7f6
[   41.063189][   T10] 
[   41.065055][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   41.065055][   T10]      netdev_get_by_index+0x5e/0x80
[   41.065055][   T10]      fib6_nh_init+0x3d8/0x1580
[   41.065055][   T10]      ip6_route_info_create+0xf18/0x17d0
[   41.065055][   T10]      ip6_route_add+0x1c/0x140
[   41.065055][   T10]      addrconf_prefix_route+0x2a6/0x430
[   41.065055][   T10]      inet6_addr_add+0x4f8/0xa40
[   41.065055][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   41.065055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   41.065055][   T10]      netlink_rcv_skb+0x130/0x360
[   41.065055][   T10]      netlink_unicast+0x449/0x710
[   41.065055][   T10]      netlink_sendmsg+0x723/0xbe0
[   41.065055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   41.065055][   T10]      ___sys_sendmsg+0xee/0x170
[   41.065055][   T10]      __sys_sendmsg+0xcd/0x170
[   41.065055][   T10]      do_syscall_64+0xc6/0x1e0
[   41.065055][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   41.065055][   T10] 
[   41.067524][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   41.067524][   T10]      netdev_get_by_index+0x5e/0x80
[   41.067524][   T10]      fib6_nh_init+0x3d8/0x1580
[   41.067524][   T10]      ip6_route_info_create+0xf18/0x17d0
[   41.067524][   T10]      addrconf_f6i_alloc+0x315/0x560
[   41.067524][   T10]      ipv6_add_addr+0x411/0x2000
[   41.067524][   T10]      inet6_addr_add+0x30e/0xa40
[   41.067524][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   41.067524][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   41.067524][   T10]      netlink_rcv_skb+0x130/0x360
[   41.067524][   T10]      netlink_unicast+0x449/0x710
[   41.067524][   T10]      netlink_sendmsg+0x723/0xbe0
[   41.067524][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   41.067524][   T10]      ___sys_sendmsg+0xee/0x170
[   41.067524][   T10]      __sys_sendmsg+0xcd/0x170
[   41.067524][   T10]      do_syscall_64+0xc6/0x1e0
[   41.067524][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   41.067524][   T10] 
[   41.070018][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   41.070018][   T10]      netdev_get_by_index+0x5e/0x80
[   41.070018][   T10]      fib6_nh_init+0x3d8/0x1580
[   41.070018][   T10]      ip6_route_info_create+0xf18/0x17d0
[   41.070018][   T10]      ip6_route_add+0x1c/0x140
[   41.070018][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[   41.070018][   T10]      addrconf_add_dev+0xe2/0x170
[   41.070018][   T10]      inet6_addr_add+0x12f/0xa40
[   41.070018][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   41.070018][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   41.070018][   T10]      netlink_rcv_skb+0x130/0x360
[   41.070018][   T10]      netlink_unicast+0x449/0x710
[   41.070018][   T10]      netlink_sendmsg+0x723/0xbe0
[   41.070018][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   41.070018][   T10]      ___sys_sendmsg+0xee/0x170
[   41.070018][   T10]      __sys_sendmsg+0xcd/0x170
[   41.070018][   T10]      do_syscall_64+0xc6/0x1e0
[   41.070018][   T10] 
[   41.072438][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   41.072438][   T10]      ipv6_add_dev+0x3ba/0x11c0
[   41.072438][   T10]      ipv6_find_idev+0x102/0x170
[   41.072438][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   41.072438][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   41.072438][   T10]      netlink_rcv_skb+0x130/0x360
[   41.072438][   T10]      netlink_unicast+0x449/0x710
[   41.072438][   T10]      netlink_sendmsg+0x723/0xbe0
[   41.072438][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   41.072438][   T10]      ___sys_sendmsg+0xee/0x170
[   41.072438][   T10]      __sys_sendmsg+0xcd/0x170
[   41.072438][   T10]      do_syscall_64+0xc6/0x1e0
[   41.072438][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   41.072438][   T10] 
[   41.074352][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   41.074352][   T10]      neigh_parms_alloc+0x1e5/0x510
[   41.074352][   T10]      ipv6_add_dev+0x2fe/0x11c0
[   41.074352][   T10]      ipv6_find_idev+0x102/0x170
[   41.074352][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   41.074352][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   41.074352][   T10]      netlink_rcv_skb+0x130/0x360
[   41.074352][   T10]      netlink_unicast+0x449/0x710
[   41.074352][   T10]      netlink_sendmsg+0x723/0xbe0
[   41.074352][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   41.074352][   T10]      ___sys_sendmsg+0xee/0x170
[   41.074352][   T10]      __sys_sendmsg+0xcd/0x170
[   41.074352][   T10]      do_syscall_64+0xc6/0x1e0
[   41.074352][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   41.074352][   T10] 
[   51.201863][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[   51.202544][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   51.202544][   T10]      dst_init+0x84/0x4a0
[   51.202544][   T10]      dst_alloc+0x97/0x150
[   51.202544][   T10]      ip6_dst_alloc+0x23/0x90
[   51.202544][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   51.202544][   T10]      ip6_pol_route+0x56f/0x840
[   51.202544][   T10]      fib6_rule_lookup+0x456/0x630
[   51.202544][   T10]      ip6_route_input+0x59c/0xa50
[   51.202544][   T10]      ipv6_rcv+0x397/0x810
[   51.202544][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[   51.202544][   T10]      process_backlog+0x101/0x620
[   51.202544][   T10]      __napi_poll.constprop.0+0xa2/0x460
[   51.202544][   T10]      net_rx_action+0x495/0xbe0
[   51.202544][   T10]      __do_softirq+0x1b5/0x7f6
[   51.202544][   T10] 
[   51.204431][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   51.204431][   T10]      netdev_get_by_index+0x5e/0x80
[   51.204431][   T10]      fib6_nh_init+0x3d8/0x1580
[   51.204431][   T10]      ip6_route_info_create+0xf18/0x17d0
[   51.204431][   T10]      ip6_route_add+0x1c/0x140
[   51.204431][   T10]      addrconf_prefix_route+0x2a6/0x430
[   51.204431][   T10]      inet6_addr_add+0x4f8/0xa40
[   51.204431][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   51.204431][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   51.204431][   T10]      netlink_rcv_skb+0x130/0x360
[   51.204431][   T10]      netlink_unicast+0x449/0x710
[   51.204431][   T10]      netlink_sendmsg+0x723/0xbe0
[   51.204431][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   51.204431][   T10]      ___sys_sendmsg+0xee/0x170
[   51.204431][   T10]      __sys_sendmsg+0xcd/0x170
[   51.204431][   T10]      do_syscall_64+0xc6/0x1e0
[   51.204431][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   51.204431][   T10] 
[   51.206743][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   51.206743][   T10]      netdev_get_by_index+0x5e/0x80
[   51.206743][   T10]      fib6_nh_init+0x3d8/0x1580
[   51.206743][   T10]      ip6_route_info_create+0xf18/0x17d0
[   51.206743][   T10]      addrconf_f6i_alloc+0x315/0x560
[   51.206743][   T10]      ipv6_add_addr+0x411/0x2000
[   51.206743][   T10]      inet6_addr_add+0x30e/0xa40
[   51.206743][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   51.206743][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   51.206743][   T10]      netlink_rcv_skb+0x130/0x360
[   51.206743][   T10]      netlink_unicast+0x449/0x710
[   51.206743][   T10]      netlink_sendmsg+0x723/0xbe0
[   51.206743][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   51.206743][   T10]      ___sys_sendmsg+0xee/0x170
[   51.206743][   T10]      __sys_sendmsg+0xcd/0x170
[   51.206743][   T10]      do_syscall_64+0xc6/0x1e0
[   51.206743][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   51.206743][   T10] 
[   51.208988][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   51.208988][   T10]      netdev_get_by_index+0x5e/0x80
[   51.208988][   T10]      fib6_nh_init+0x3d8/0x1580
[   51.208988][   T10]      ip6_route_info_create+0xf18/0x17d0
[   51.208988][   T10]      ip6_route_add+0x1c/0x140
[   51.208988][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[   51.208988][   T10]      addrconf_add_dev+0xe2/0x170
[   51.208988][   T10]      inet6_addr_add+0x12f/0xa40
[   51.208988][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   51.208988][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   51.208988][   T10]      netlink_rcv_skb+0x130/0x360
[   51.208988][   T10]      netlink_unicast+0x449/0x710
[   51.208988][   T10]      netlink_sendmsg+0x723/0xbe0
[   51.208988][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   51.208988][   T10]      ___sys_sendmsg+0xee/0x170
[   51.208988][   T10]      __sys_sendmsg+0xcd/0x170
[   51.208988][   T10]      do_syscall_64+0xc6/0x1e0
[   51.208988][   T10] 
[   51.211223][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   51.211223][   T10]      ipv6_add_dev+0x3ba/0x11c0
[   51.211223][   T10]      ipv6_find_idev+0x102/0x170
[   51.211223][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   51.211223][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   51.211223][   T10]      netlink_rcv_skb+0x130/0x360
[   51.211223][   T10]      netlink_unicast+0x449/0x710
[   51.211223][   T10]      netlink_sendmsg+0x723/0xbe0
[   51.211223][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   51.211223][   T10]      ___sys_sendmsg+0xee/0x170
[   51.211223][   T10]      __sys_sendmsg+0xcd/0x170
[   51.211223][   T10]      do_syscall_64+0xc6/0x1e0
[   51.211223][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   51.211223][   T10] 
[   51.213055][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   51.213055][   T10]      neigh_parms_alloc+0x1e5/0x510
[   51.213055][   T10]      ipv6_add_dev+0x2fe/0x11c0
[   51.213055][   T10]      ipv6_find_idev+0x102/0x170
[   51.213055][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   51.213055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   51.213055][   T10]      netlink_rcv_skb+0x130/0x360
[   51.213055][   T10]      netlink_unicast+0x449/0x710
[   51.213055][   T10]      netlink_sendmsg+0x723/0xbe0
[   51.213055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   51.213055][   T10]      ___sys_sendmsg+0xee/0x170
[   51.213055][   T10]      __sys_sendmsg+0xcd/0x170
[   51.213055][   T10]      do_syscall_64+0xc6/0x1e0
[   51.213055][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   51.213055][   T10] 
[   51.215195][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[   51.215474][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   51.215474][   T10]      dst_init+0x84/0x4a0
[   51.215474][   T10]      dst_alloc+0x97/0x150
[   51.215474][   T10]      ip6_dst_alloc+0x23/0x90
[   51.215474][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   51.215474][   T10]      ip6_pol_route+0x56f/0x840
[   51.215474][   T10]      fib6_rule_lookup+0x456/0x630
[   51.215474][   T10]      ip6_route_input+0x59c/0xa50
[   51.215474][   T10]      ipv6_rcv+0x397/0x810
[   51.215474][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[   51.215474][   T10]      process_backlog+0x101/0x620
[   51.215474][   T10]      __napi_poll.constprop.0+0xa2/0x460
[   51.215474][   T10]      net_rx_action+0x495/0xbe0
[   51.215474][   T10]      __do_softirq+0x1b5/0x7f6
[   51.215474][   T10] 
[   51.217344][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   51.217344][   T10]      netdev_get_by_index+0x5e/0x80
[   51.217344][   T10]      fib6_nh_init+0x3d8/0x1580
[   51.217344][   T10]      ip6_route_info_create+0xf18/0x17d0
[   51.217344][   T10]      ip6_route_add+0x1c/0x140
[   51.217344][   T10]      addrconf_prefix_route+0x2a6/0x430
[   51.217344][   T10]      inet6_addr_add+0x4f8/0xa40
[   51.217344][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   51.217344][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   51.217344][   T10]      netlink_rcv_skb+0x130/0x360
[   51.217344][   T10]      netlink_unicast+0x449/0x710
[   51.217344][   T10]      netlink_sendmsg+0x723/0xbe0
[   51.217344][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   51.217344][   T10]      ___sys_sendmsg+0xee/0x170
[   51.217344][   T10]      __sys_sendmsg+0xcd/0x170
[   51.217344][   T10]      do_syscall_64+0xc6/0x1e0
[   51.217344][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   51.217344][   T10] 
[   51.219614][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   51.219614][   T10]      netdev_get_by_index+0x5e/0x80
[   51.219614][   T10]      fib6_nh_init+0x3d8/0x1580
[   51.219614][   T10]      ip6_route_info_create+0xf18/0x17d0
[   51.219614][   T10]      addrconf_f6i_alloc+0x315/0x560
[   51.219614][   T10]      ipv6_add_addr+0x411/0x2000
[   51.219614][   T10]      inet6_addr_add+0x30e/0xa40
[   51.219614][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   51.219614][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   51.219614][   T10]      netlink_rcv_skb+0x130/0x360
[   51.219614][   T10]      netlink_unicast+0x449/0x710
[   51.219614][   T10]      netlink_sendmsg+0x723/0xbe0
[   51.219614][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   51.219614][   T10]      ___sys_sendmsg+0xee/0x170
[   51.219614][   T10]      __sys_sendmsg+0xcd/0x170
[   51.219614][   T10]      do_syscall_64+0xc6/0x1e0
[   51.219614][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   51.219614][   T10] 
[   51.221885][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   51.221885][   T10]      netdev_get_by_index+0x5e/0x80
[   51.221885][   T10]      fib6_nh_init+0x3d8/0x1580
[   51.221885][   T10]      ip6_route_info_create+0xf18/0x17d0
[   51.221885][   T10]      ip6_route_add+0x1c/0x140
[   51.221885][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[   51.221885][   T10]      addrconf_add_dev+0xe2/0x170
[   51.221885][   T10]      inet6_addr_add+0x12f/0xa40
[   51.221885][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   51.221885][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   51.221885][   T10]      netlink_rcv_skb+0x130/0x360
[   51.221885][   T10]      netlink_unicast+0x449/0x710
[   51.221885][   T10]      netlink_sendmsg+0x723/0xbe0
[   51.221885][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   51.221885][   T10]      ___sys_sendmsg+0xee/0x170
[   51.221885][   T10]      __sys_sendmsg+0xcd/0x170
[   51.221885][   T10]      do_syscall_64+0xc6/0x1e0
[   51.221885][   T10] 
[   51.224114][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   51.224114][   T10]      ipv6_add_dev+0x3ba/0x11c0
[   51.224114][   T10]      ipv6_find_idev+0x102/0x170
[   51.224114][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   51.224114][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   51.224114][   T10]      netlink_rcv_skb+0x130/0x360
[   51.224114][   T10]      netlink_unicast+0x449/0x710
[   51.224114][   T10]      netlink_sendmsg+0x723/0xbe0
[   51.224114][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   51.224114][   T10]      ___sys_sendmsg+0xee/0x170
[   51.224114][   T10]      __sys_sendmsg+0xcd/0x170
[   51.224114][   T10]      do_syscall_64+0xc6/0x1e0
[   51.224114][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   51.224114][   T10] 
[   51.225866][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   51.225866][   T10]      neigh_parms_alloc+0x1e5/0x510
[   51.225866][   T10]      ipv6_add_dev+0x2fe/0x11c0
[   51.225866][   T10]      ipv6_find_idev+0x102/0x170
[   51.225866][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   51.225866][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   51.225866][   T10]      netlink_rcv_skb+0x130/0x360
[   51.225866][   T10]      netlink_unicast+0x449/0x710
[   51.225866][   T10]      netlink_sendmsg+0x723/0xbe0
[   51.225866][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   51.225866][   T10]      ___sys_sendmsg+0xee/0x170
[   51.225866][   T10]      __sys_sendmsg+0xcd/0x170
[   51.225866][   T10]      do_syscall_64+0xc6/0x1e0
[   51.225866][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   51.225866][   T10] 
[   61.465873][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[   61.466516][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   61.466516][   T10]      dst_init+0x84/0x4a0
[   61.466516][   T10]      dst_alloc+0x97/0x150
[   61.466516][   T10]      ip6_dst_alloc+0x23/0x90
[   61.466516][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   61.466516][   T10]      ip6_pol_route+0x56f/0x840
[   61.466516][   T10]      fib6_rule_lookup+0x456/0x630
[   61.466516][   T10]      ip6_route_input+0x59c/0xa50
[   61.466516][   T10]      ipv6_rcv+0x397/0x810
[   61.466516][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[   61.466516][   T10]      process_backlog+0x101/0x620
[   61.466516][   T10]      __napi_poll.constprop.0+0xa2/0x460
[   61.466516][   T10]      net_rx_action+0x495/0xbe0
[   61.466516][   T10]      __do_softirq+0x1b5/0x7f6
[   61.466516][   T10] 
[   61.468500][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   61.468500][   T10]      netdev_get_by_index+0x5e/0x80
[   61.468500][   T10]      fib6_nh_init+0x3d8/0x1580
[   61.468500][   T10]      ip6_route_info_create+0xf18/0x17d0
[   61.468500][   T10]      ip6_route_add+0x1c/0x140
[   61.468500][   T10]      addrconf_prefix_route+0x2a6/0x430
[   61.468500][   T10]      inet6_addr_add+0x4f8/0xa40
[   61.468500][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   61.468500][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   61.468500][   T10]      netlink_rcv_skb+0x130/0x360
[   61.468500][   T10]      netlink_unicast+0x449/0x710
[   61.468500][   T10]      netlink_sendmsg+0x723/0xbe0
[   61.468500][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   61.468500][   T10]      ___sys_sendmsg+0xee/0x170
[   61.468500][   T10]      __sys_sendmsg+0xcd/0x170
[   61.468500][   T10]      do_syscall_64+0xc6/0x1e0
[   61.468500][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   61.468500][   T10] 
[   61.470765][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   61.470765][   T10]      netdev_get_by_index+0x5e/0x80
[   61.470765][   T10]      fib6_nh_init+0x3d8/0x1580
[   61.470765][   T10]      ip6_route_info_create+0xf18/0x17d0
[   61.470765][   T10]      addrconf_f6i_alloc+0x315/0x560
[   61.470765][   T10]      ipv6_add_addr+0x411/0x2000
[   61.470765][   T10]      inet6_addr_add+0x30e/0xa40
[   61.470765][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   61.470765][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   61.470765][   T10]      netlink_rcv_skb+0x130/0x360
[   61.470765][   T10]      netlink_unicast+0x449/0x710
[   61.470765][   T10]      netlink_sendmsg+0x723/0xbe0
[   61.470765][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   61.470765][   T10]      ___sys_sendmsg+0xee/0x170
[   61.470765][   T10]      __sys_sendmsg+0xcd/0x170
[   61.470765][   T10]      do_syscall_64+0xc6/0x1e0
[   61.470765][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   61.470765][   T10] 
[   61.473082][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   61.473082][   T10]      netdev_get_by_index+0x5e/0x80
[   61.473082][   T10]      fib6_nh_init+0x3d8/0x1580
[   61.473082][   T10]      ip6_route_info_create+0xf18/0x17d0
[   61.473082][   T10]      ip6_route_add+0x1c/0x140
[   61.473082][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[   61.473082][   T10]      addrconf_add_dev+0xe2/0x170
[   61.473082][   T10]      inet6_addr_add+0x12f/0xa40
[   61.473082][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   61.473082][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   61.473082][   T10]      netlink_rcv_skb+0x130/0x360
[   61.473082][   T10]      netlink_unicast+0x449/0x710
[   61.473082][   T10]      netlink_sendmsg+0x723/0xbe0
[   61.473082][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   61.473082][   T10]      ___sys_sendmsg+0xee/0x170
[   61.473082][   T10]      __sys_sendmsg+0xcd/0x170
[   61.473082][   T10]      do_syscall_64+0xc6/0x1e0
[   61.473082][   T10] 
[   61.475285][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   61.475285][   T10]      ipv6_add_dev+0x3ba/0x11c0
[   61.475285][   T10]      ipv6_find_idev+0x102/0x170
[   61.475285][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   61.475285][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   61.475285][   T10]      netlink_rcv_skb+0x130/0x360
[   61.475285][   T10]      netlink_unicast+0x449/0x710
[   61.475285][   T10]      netlink_sendmsg+0x723/0xbe0
[   61.475285][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   61.475285][   T10]      ___sys_sendmsg+0xee/0x170
[   61.475285][   T10]      __sys_sendmsg+0xcd/0x170
[   61.475285][   T10]      do_syscall_64+0xc6/0x1e0
[   61.475285][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   61.475285][   T10] 
[   61.477058][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   61.477058][   T10]      neigh_parms_alloc+0x1e5/0x510
[   61.477058][   T10]      ipv6_add_dev+0x2fe/0x11c0
[   61.477058][   T10]      ipv6_find_idev+0x102/0x170
[   61.477058][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   61.477058][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   61.477058][   T10]      netlink_rcv_skb+0x130/0x360
[   61.477058][   T10]      netlink_unicast+0x449/0x710
[   61.477058][   T10]      netlink_sendmsg+0x723/0xbe0
[   61.477058][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   61.477058][   T10]      ___sys_sendmsg+0xee/0x170
[   61.477058][   T10]      __sys_sendmsg+0xcd/0x170
[   61.477058][   T10]      do_syscall_64+0xc6/0x1e0
[   61.477058][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   61.477058][   T10] 
[   61.478966][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[   61.479249][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   61.479249][   T10]      dst_init+0x84/0x4a0
[   61.479249][   T10]      dst_alloc+0x97/0x150
[   61.479249][   T10]      ip6_dst_alloc+0x23/0x90
[   61.479249][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   61.479249][   T10]      ip6_pol_route+0x56f/0x840
[   61.479249][   T10]      fib6_rule_lookup+0x456/0x630
[   61.479249][   T10]      ip6_route_input+0x59c/0xa50
[   61.479249][   T10]      ipv6_rcv+0x397/0x810
[   61.479249][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[   61.479249][   T10]      process_backlog+0x101/0x620
[   61.479249][   T10]      __napi_poll.constprop.0+0xa2/0x460
[   61.479249][   T10]      net_rx_action+0x495/0xbe0
[   61.479249][   T10]      __do_softirq+0x1b5/0x7f6
[   61.479249][   T10] 
[   61.481136][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   61.481136][   T10]      netdev_get_by_index+0x5e/0x80
[   61.481136][   T10]      fib6_nh_init+0x3d8/0x1580
[   61.481136][   T10]      ip6_route_info_create+0xf18/0x17d0
[   61.481136][   T10]      ip6_route_add+0x1c/0x140
[   61.481136][   T10]      addrconf_prefix_route+0x2a6/0x430
[   61.481136][   T10]      inet6_addr_add+0x4f8/0xa40
[   61.481136][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   61.481136][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   61.481136][   T10]      netlink_rcv_skb+0x130/0x360
[   61.481136][   T10]      netlink_unicast+0x449/0x710
[   61.481136][   T10]      netlink_sendmsg+0x723/0xbe0
[   61.481136][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   61.481136][   T10]      ___sys_sendmsg+0xee/0x170
[   61.481136][   T10]      __sys_sendmsg+0xcd/0x170
[   61.481136][   T10]      do_syscall_64+0xc6/0x1e0
[   61.481136][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   61.481136][   T10] 
[   61.483431][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   61.483431][   T10]      netdev_get_by_index+0x5e/0x80
[   61.483431][   T10]      fib6_nh_init+0x3d8/0x1580
[   61.483431][   T10]      ip6_route_info_create+0xf18/0x17d0
[   61.483431][   T10]      addrconf_f6i_alloc+0x315/0x560
[   61.483431][   T10]      ipv6_add_addr+0x411/0x2000
[   61.483431][   T10]      inet6_addr_add+0x30e/0xa40
[   61.483431][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   61.483431][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   61.483431][   T10]      netlink_rcv_skb+0x130/0x360
[   61.483431][   T10]      netlink_unicast+0x449/0x710
[   61.483431][   T10]      netlink_sendmsg+0x723/0xbe0
[   61.483431][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   61.483431][   T10]      ___sys_sendmsg+0xee/0x170
[   61.483431][   T10]      __sys_sendmsg+0xcd/0x170
[   61.483431][   T10]      do_syscall_64+0xc6/0x1e0
[   61.483431][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   61.483431][   T10] 
[   61.485724][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   61.485724][   T10]      netdev_get_by_index+0x5e/0x80
[   61.485724][   T10]      fib6_nh_init+0x3d8/0x1580
[   61.485724][   T10]      ip6_route_info_create+0xf18/0x17d0
[   61.485724][   T10]      ip6_route_add+0x1c/0x140
[   61.485724][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[   61.485724][   T10]      addrconf_add_dev+0xe2/0x170
[   61.485724][   T10]      inet6_addr_add+0x12f/0xa40
[   61.485724][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   61.485724][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   61.485724][   T10]      netlink_rcv_skb+0x130/0x360
[   61.485724][   T10]      netlink_unicast+0x449/0x710
[   61.485724][   T10]      netlink_sendmsg+0x723/0xbe0
[   61.485724][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   61.485724][   T10]      ___sys_sendmsg+0xee/0x170
[   61.485724][   T10]      __sys_sendmsg+0xcd/0x170
[   61.485724][   T10]      do_syscall_64+0xc6/0x1e0
[   61.485724][   T10] 
[   61.487933][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   61.487933][   T10]      ipv6_add_dev+0x3ba/0x11c0
[   61.487933][   T10]      ipv6_find_idev+0x102/0x170
[   61.487933][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   61.487933][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   61.487933][   T10]      netlink_rcv_skb+0x130/0x360
[   61.487933][   T10]      netlink_unicast+0x449/0x710
[   61.487933][   T10]      netlink_sendmsg+0x723/0xbe0
[   61.487933][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   61.487933][   T10]      ___sys_sendmsg+0xee/0x170
[   61.487933][   T10]      __sys_sendmsg+0xcd/0x170
[   61.487933][   T10]      do_syscall_64+0xc6/0x1e0
[   61.487933][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   61.487933][   T10] 
[   61.489688][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   61.489688][   T10]      neigh_parms_alloc+0x1e5/0x510
[   61.489688][   T10]      ipv6_add_dev+0x2fe/0x11c0
[   61.489688][   T10]      ipv6_find_idev+0x102/0x170
[   61.489688][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   61.489688][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   61.489688][   T10]      netlink_rcv_skb+0x130/0x360
[   61.489688][   T10]      netlink_unicast+0x449/0x710
[   61.489688][   T10]      netlink_sendmsg+0x723/0xbe0
[   61.489688][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   61.489688][   T10]      ___sys_sendmsg+0xee/0x170
[   61.489688][   T10]      __sys_sendmsg+0xcd/0x170
[   61.489688][   T10]      do_syscall_64+0xc6/0x1e0
[   61.489688][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   61.489688][   T10] 
[   71.729793][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[   71.730473][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   71.730473][   T10]      dst_init+0x84/0x4a0
[   71.730473][   T10]      dst_alloc+0x97/0x150
[   71.730473][   T10]      ip6_dst_alloc+0x23/0x90
[   71.730473][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   71.730473][   T10]      ip6_pol_route+0x56f/0x840
[   71.730473][   T10]      fib6_rule_lookup+0x456/0x630
[   71.730473][   T10]      ip6_route_input+0x59c/0xa50
[   71.730473][   T10]      ipv6_rcv+0x397/0x810
[   71.730473][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[   71.730473][   T10]      process_backlog+0x101/0x620
[   71.730473][   T10]      __napi_poll.constprop.0+0xa2/0x460
[   71.730473][   T10]      net_rx_action+0x495/0xbe0
[   71.730473][   T10]      __do_softirq+0x1b5/0x7f6
[   71.730473][   T10] 
[   71.732434][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   71.732434][   T10]      netdev_get_by_index+0x5e/0x80
[   71.732434][   T10]      fib6_nh_init+0x3d8/0x1580
[   71.732434][   T10]      ip6_route_info_create+0xf18/0x17d0
[   71.732434][   T10]      ip6_route_add+0x1c/0x140
[   71.732434][   T10]      addrconf_prefix_route+0x2a6/0x430
[   71.732434][   T10]      inet6_addr_add+0x4f8/0xa40
[   71.732434][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   71.732434][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   71.732434][   T10]      netlink_rcv_skb+0x130/0x360
[   71.732434][   T10]      netlink_unicast+0x449/0x710
[   71.732434][   T10]      netlink_sendmsg+0x723/0xbe0
[   71.732434][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   71.732434][   T10]      ___sys_sendmsg+0xee/0x170
[   71.732434][   T10]      __sys_sendmsg+0xcd/0x170
[   71.732434][   T10]      do_syscall_64+0xc6/0x1e0
[   71.732434][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   71.732434][   T10] 
[   71.734723][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   71.734723][   T10]      netdev_get_by_index+0x5e/0x80
[   71.734723][   T10]      fib6_nh_init+0x3d8/0x1580
[   71.734723][   T10]      ip6_route_info_create+0xf18/0x17d0
[   71.734723][   T10]      addrconf_f6i_alloc+0x315/0x560
[   71.734723][   T10]      ipv6_add_addr+0x411/0x2000
[   71.734723][   T10]      inet6_addr_add+0x30e/0xa40
[   71.734723][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   71.734723][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   71.734723][   T10]      netlink_rcv_skb+0x130/0x360
[   71.734723][   T10]      netlink_unicast+0x449/0x710
[   71.734723][   T10]      netlink_sendmsg+0x723/0xbe0
[   71.734723][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   71.734723][   T10]      ___sys_sendmsg+0xee/0x170
[   71.734723][   T10]      __sys_sendmsg+0xcd/0x170
[   71.734723][   T10]      do_syscall_64+0xc6/0x1e0
[   71.734723][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   71.734723][   T10] 
[   71.737019][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   71.737019][   T10]      netdev_get_by_index+0x5e/0x80
[   71.737019][   T10]      fib6_nh_init+0x3d8/0x1580
[   71.737019][   T10]      ip6_route_info_create+0xf18/0x17d0
[   71.737019][   T10]      ip6_route_add+0x1c/0x140
[   71.737019][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[   71.737019][   T10]      addrconf_add_dev+0xe2/0x170
[   71.737019][   T10]      inet6_addr_add+0x12f/0xa40
[   71.737019][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   71.737019][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   71.737019][   T10]      netlink_rcv_skb+0x130/0x360
[   71.737019][   T10]      netlink_unicast+0x449/0x710
[   71.737019][   T10]      netlink_sendmsg+0x723/0xbe0
[   71.737019][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   71.737019][   T10]      ___sys_sendmsg+0xee/0x170
[   71.737019][   T10]      __sys_sendmsg+0xcd/0x170
[   71.737019][   T10]      do_syscall_64+0xc6/0x1e0
[   71.737019][   T10] 
[   71.739302][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   71.739302][   T10]      ipv6_add_dev+0x3ba/0x11c0
[   71.739302][   T10]      ipv6_find_idev+0x102/0x170
[   71.739302][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   71.739302][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   71.739302][   T10]      netlink_rcv_skb+0x130/0x360
[   71.739302][   T10]      netlink_unicast+0x449/0x710
[   71.739302][   T10]      netlink_sendmsg+0x723/0xbe0
[   71.739302][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   71.739302][   T10]      ___sys_sendmsg+0xee/0x170
[   71.739302][   T10]      __sys_sendmsg+0xcd/0x170
[   71.739302][   T10]      do_syscall_64+0xc6/0x1e0
[   71.739302][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   71.739302][   T10] 
[   71.741033][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   71.741033][   T10]      neigh_parms_alloc+0x1e5/0x510
[   71.741033][   T10]      ipv6_add_dev+0x2fe/0x11c0
[   71.741033][   T10]      ipv6_find_idev+0x102/0x170
[   71.741033][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   71.741033][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   71.741033][   T10]      netlink_rcv_skb+0x130/0x360
[   71.741033][   T10]      netlink_unicast+0x449/0x710
[   71.741033][   T10]      netlink_sendmsg+0x723/0xbe0
[   71.741033][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   71.741033][   T10]      ___sys_sendmsg+0xee/0x170
[   71.741033][   T10]      __sys_sendmsg+0xcd/0x170
[   71.741033][   T10]      do_syscall_64+0xc6/0x1e0
[   71.741033][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   71.741033][   T10] 
[   71.742981][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[   71.743244][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   71.743244][   T10]      dst_init+0x84/0x4a0
[   71.743244][   T10]      dst_alloc+0x97/0x150
[   71.743244][   T10]      ip6_dst_alloc+0x23/0x90
[   71.743244][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   71.743244][   T10]      ip6_pol_route+0x56f/0x840
[   71.743244][   T10]      fib6_rule_lookup+0x456/0x630
[   71.743244][   T10]      ip6_route_input+0x59c/0xa50
[   71.743244][   T10]      ipv6_rcv+0x397/0x810
[   71.743244][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[   71.743244][   T10]      process_backlog+0x101/0x620
[   71.743244][   T10]      __napi_poll.constprop.0+0xa2/0x460
[   71.743244][   T10]      net_rx_action+0x495/0xbe0
[   71.743244][   T10]      __do_softirq+0x1b5/0x7f6
[   71.743244][   T10] 
[   71.745133][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   71.745133][   T10]      netdev_get_by_index+0x5e/0x80
[   71.745133][   T10]      fib6_nh_init+0x3d8/0x1580
[   71.745133][   T10]      ip6_route_info_create+0xf18/0x17d0
[   71.745133][   T10]      ip6_route_add+0x1c/0x140
[   71.745133][   T10]      addrconf_prefix_route+0x2a6/0x430
[   71.745133][   T10]      inet6_addr_add+0x4f8/0xa40
[   71.745133][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   71.745133][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   71.745133][   T10]      netlink_rcv_skb+0x130/0x360
[   71.745133][   T10]      netlink_unicast+0x449/0x710
[   71.745133][   T10]      netlink_sendmsg+0x723/0xbe0
[   71.745133][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   71.745133][   T10]      ___sys_sendmsg+0xee/0x170
[   71.745133][   T10]      __sys_sendmsg+0xcd/0x170
[   71.745133][   T10]      do_syscall_64+0xc6/0x1e0
[   71.745133][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   71.745133][   T10] 
[   71.747422][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   71.747422][   T10]      netdev_get_by_index+0x5e/0x80
[   71.747422][   T10]      fib6_nh_init+0x3d8/0x1580
[   71.747422][   T10]      ip6_route_info_create+0xf18/0x17d0
[   71.747422][   T10]      addrconf_f6i_alloc+0x315/0x560
[   71.747422][   T10]      ipv6_add_addr+0x411/0x2000
[   71.747422][   T10]      inet6_addr_add+0x30e/0xa40
[   71.747422][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   71.747422][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   71.747422][   T10]      netlink_rcv_skb+0x130/0x360
[   71.747422][   T10]      netlink_unicast+0x449/0x710
[   71.747422][   T10]      netlink_sendmsg+0x723/0xbe0
[   71.747422][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   71.747422][   T10]      ___sys_sendmsg+0xee/0x170
[   71.747422][   T10]      __sys_sendmsg+0xcd/0x170
[   71.747422][   T10]      do_syscall_64+0xc6/0x1e0
[   71.747422][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   71.747422][   T10] 
[   71.749669][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   71.749669][   T10]      netdev_get_by_index+0x5e/0x80
[   71.749669][   T10]      fib6_nh_init+0x3d8/0x1580
[   71.749669][   T10]      ip6_route_info_create+0xf18/0x17d0
[   71.749669][   T10]      ip6_route_add+0x1c/0x140
[   71.749669][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[   71.749669][   T10]      addrconf_add_dev+0xe2/0x170
[   71.749669][   T10]      inet6_addr_add+0x12f/0xa40
[   71.749669][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   71.749669][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   71.749669][   T10]      netlink_rcv_skb+0x130/0x360
[   71.749669][   T10]      netlink_unicast+0x449/0x710
[   71.749669][   T10]      netlink_sendmsg+0x723/0xbe0
[   71.749669][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   71.749669][   T10]      ___sys_sendmsg+0xee/0x170
[   71.749669][   T10]      __sys_sendmsg+0xcd/0x170
[   71.749669][   T10]      do_syscall_64+0xc6/0x1e0
[   71.749669][   T10] 
[   71.751901][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   71.751901][   T10]      ipv6_add_dev+0x3ba/0x11c0
[   71.751901][   T10]      ipv6_find_idev+0x102/0x170
[   71.751901][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   71.751901][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   71.751901][   T10]      netlink_rcv_skb+0x130/0x360
[   71.751901][   T10]      netlink_unicast+0x449/0x710
[   71.751901][   T10]      netlink_sendmsg+0x723/0xbe0
[   71.751901][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   71.751901][   T10]      ___sys_sendmsg+0xee/0x170
[   71.751901][   T10]      __sys_sendmsg+0xcd/0x170
[   71.751901][   T10]      do_syscall_64+0xc6/0x1e0
[   71.751901][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   71.751901][   T10] 
[   71.753629][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   71.753629][   T10]      neigh_parms_alloc+0x1e5/0x510
[   71.753629][   T10]      ipv6_add_dev+0x2fe/0x11c0
[   71.753629][   T10]      ipv6_find_idev+0x102/0x170
[   71.753629][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   71.753629][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   71.753629][   T10]      netlink_rcv_skb+0x130/0x360
[   71.753629][   T10]      netlink_unicast+0x449/0x710
[   71.753629][   T10]      netlink_sendmsg+0x723/0xbe0
[   71.753629][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   71.753629][   T10]      ___sys_sendmsg+0xee/0x170
[   71.753629][   T10]      __sys_sendmsg+0xcd/0x170
[   71.753629][   T10]      do_syscall_64+0xc6/0x1e0
[   71.753629][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   71.753629][   T10] 
[   81.993850][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[   81.994520][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   81.994520][   T10]      dst_init+0x84/0x4a0
[   81.994520][   T10]      dst_alloc+0x97/0x150
[   81.994520][   T10]      ip6_dst_alloc+0x23/0x90
[   81.994520][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   81.994520][   T10]      ip6_pol_route+0x56f/0x840
[   81.994520][   T10]      fib6_rule_lookup+0x456/0x630
[   81.994520][   T10]      ip6_route_input+0x59c/0xa50
[   81.994520][   T10]      ipv6_rcv+0x397/0x810
[   81.994520][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[   81.994520][   T10]      process_backlog+0x101/0x620
[   81.994520][   T10]      __napi_poll.constprop.0+0xa2/0x460
[   81.994520][   T10]      net_rx_action+0x495/0xbe0
[   81.994520][   T10]      __do_softirq+0x1b5/0x7f6
[   81.994520][   T10] 
[   81.996417][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   81.996417][   T10]      netdev_get_by_index+0x5e/0x80
[   81.996417][   T10]      fib6_nh_init+0x3d8/0x1580
[   81.996417][   T10]      ip6_route_info_create+0xf18/0x17d0
[   81.996417][   T10]      ip6_route_add+0x1c/0x140
[   81.996417][   T10]      addrconf_prefix_route+0x2a6/0x430
[   81.996417][   T10]      inet6_addr_add+0x4f8/0xa40
[   81.996417][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   81.996417][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   81.996417][   T10]      netlink_rcv_skb+0x130/0x360
[   81.996417][   T10]      netlink_unicast+0x449/0x710
[   81.996417][   T10]      netlink_sendmsg+0x723/0xbe0
[   81.996417][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   81.996417][   T10]      ___sys_sendmsg+0xee/0x170
[   81.996417][   T10]      __sys_sendmsg+0xcd/0x170
[   81.996417][   T10]      do_syscall_64+0xc6/0x1e0
[   81.996417][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   81.996417][   T10] 
[   81.998767][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   81.998767][   T10]      netdev_get_by_index+0x5e/0x80
[   81.998767][   T10]      fib6_nh_init+0x3d8/0x1580
[   81.998767][   T10]      ip6_route_info_create+0xf18/0x17d0
[   81.998767][   T10]      addrconf_f6i_alloc+0x315/0x560
[   81.998767][   T10]      ipv6_add_addr+0x411/0x2000
[   81.998767][   T10]      inet6_addr_add+0x30e/0xa40
[   81.998767][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   81.998767][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   81.998767][   T10]      netlink_rcv_skb+0x130/0x360
[   81.998767][   T10]      netlink_unicast+0x449/0x710
[   81.998767][   T10]      netlink_sendmsg+0x723/0xbe0
[   81.998767][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   81.998767][   T10]      ___sys_sendmsg+0xee/0x170
[   81.998767][   T10]      __sys_sendmsg+0xcd/0x170
[   81.998767][   T10]      do_syscall_64+0xc6/0x1e0
[   81.998767][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   81.998767][   T10] 
[   82.001083][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   82.001083][   T10]      netdev_get_by_index+0x5e/0x80
[   82.001083][   T10]      fib6_nh_init+0x3d8/0x1580
[   82.001083][   T10]      ip6_route_info_create+0xf18/0x17d0
[   82.001083][   T10]      ip6_route_add+0x1c/0x140
[   82.001083][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[   82.001083][   T10]      addrconf_add_dev+0xe2/0x170
[   82.001083][   T10]      inet6_addr_add+0x12f/0xa40
[   82.001083][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   82.001083][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   82.001083][   T10]      netlink_rcv_skb+0x130/0x360
[   82.001083][   T10]      netlink_unicast+0x449/0x710
[   82.001083][   T10]      netlink_sendmsg+0x723/0xbe0
[   82.001083][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   82.001083][   T10]      ___sys_sendmsg+0xee/0x170
[   82.001083][   T10]      __sys_sendmsg+0xcd/0x170
[   82.001083][   T10]      do_syscall_64+0xc6/0x1e0
[   82.001083][   T10] 
[   82.003342][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   82.003342][   T10]      ipv6_add_dev+0x3ba/0x11c0
[   82.003342][   T10]      ipv6_find_idev+0x102/0x170
[   82.003342][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   82.003342][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   82.003342][   T10]      netlink_rcv_skb+0x130/0x360
[   82.003342][   T10]      netlink_unicast+0x449/0x710
[   82.003342][   T10]      netlink_sendmsg+0x723/0xbe0
[   82.003342][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   82.003342][   T10]      ___sys_sendmsg+0xee/0x170
[   82.003342][   T10]      __sys_sendmsg+0xcd/0x170
[   82.003342][   T10]      do_syscall_64+0xc6/0x1e0
[   82.003342][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   82.003342][   T10] 
[   82.005075][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   82.005075][   T10]      neigh_parms_alloc+0x1e5/0x510
[   82.005075][   T10]      ipv6_add_dev+0x2fe/0x11c0
[   82.005075][   T10]      ipv6_find_idev+0x102/0x170
[   82.005075][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   82.005075][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   82.005075][   T10]      netlink_rcv_skb+0x130/0x360
[   82.005075][   T10]      netlink_unicast+0x449/0x710
[   82.005075][   T10]      netlink_sendmsg+0x723/0xbe0
[   82.005075][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   82.005075][   T10]      ___sys_sendmsg+0xee/0x170
[   82.005075][   T10]      __sys_sendmsg+0xcd/0x170
[   82.005075][   T10]      do_syscall_64+0xc6/0x1e0
[   82.005075][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   82.005075][   T10] 
[   82.006963][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[   82.007273][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   82.007273][   T10]      dst_init+0x84/0x4a0
[   82.007273][   T10]      dst_alloc+0x97/0x150
[   82.007273][   T10]      ip6_dst_alloc+0x23/0x90
[   82.007273][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   82.007273][   T10]      ip6_pol_route+0x56f/0x840
[   82.007273][   T10]      fib6_rule_lookup+0x456/0x630
[   82.007273][   T10]      ip6_route_input+0x59c/0xa50
[   82.007273][   T10]      ipv6_rcv+0x397/0x810
[   82.007273][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[   82.007273][   T10]      process_backlog+0x101/0x620
[   82.007273][   T10]      __napi_poll.constprop.0+0xa2/0x460
[   82.007273][   T10]      net_rx_action+0x495/0xbe0
[   82.007273][   T10]      __do_softirq+0x1b5/0x7f6
[   82.007273][   T10] 
[   82.009131][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   82.009131][   T10]      netdev_get_by_index+0x5e/0x80
[   82.009131][   T10]      fib6_nh_init+0x3d8/0x1580
[   82.009131][   T10]      ip6_route_info_create+0xf18/0x17d0
[   82.009131][   T10]      ip6_route_add+0x1c/0x140
[   82.009131][   T10]      addrconf_prefix_route+0x2a6/0x430
[   82.009131][   T10]      inet6_addr_add+0x4f8/0xa40
[   82.009131][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   82.009131][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   82.009131][   T10]      netlink_rcv_skb+0x130/0x360
[   82.009131][   T10]      netlink_unicast+0x449/0x710
[   82.009131][   T10]      netlink_sendmsg+0x723/0xbe0
[   82.009131][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   82.009131][   T10]      ___sys_sendmsg+0xee/0x170
[   82.009131][   T10]      __sys_sendmsg+0xcd/0x170
[   82.009131][   T10]      do_syscall_64+0xc6/0x1e0
[   82.009131][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   82.009131][   T10] 
[   82.011374][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   82.011374][   T10]      netdev_get_by_index+0x5e/0x80
[   82.011374][   T10]      fib6_nh_init+0x3d8/0x1580
[   82.011374][   T10]      ip6_route_info_create+0xf18/0x17d0
[   82.011374][   T10]      addrconf_f6i_alloc+0x315/0x560
[   82.011374][   T10]      ipv6_add_addr+0x411/0x2000
[   82.011374][   T10]      inet6_addr_add+0x30e/0xa40
[   82.011374][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   82.011374][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   82.011374][   T10]      netlink_rcv_skb+0x130/0x360
[   82.011374][   T10]      netlink_unicast+0x449/0x710
[   82.011374][   T10]      netlink_sendmsg+0x723/0xbe0
[   82.011374][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   82.011374][   T10]      ___sys_sendmsg+0xee/0x170
[   82.011374][   T10]      __sys_sendmsg+0xcd/0x170
[   82.011374][   T10]      do_syscall_64+0xc6/0x1e0
[   82.011374][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   82.011374][   T10] 
[   82.013640][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   82.013640][   T10]      netdev_get_by_index+0x5e/0x80
[   82.013640][   T10]      fib6_nh_init+0x3d8/0x1580
[   82.013640][   T10]      ip6_route_info_create+0xf18/0x17d0
[   82.013640][   T10]      ip6_route_add+0x1c/0x140
[   82.013640][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[   82.013640][   T10]      addrconf_add_dev+0xe2/0x170
[   82.013640][   T10]      inet6_addr_add+0x12f/0xa40
[   82.013640][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   82.013640][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   82.013640][   T10]      netlink_rcv_skb+0x130/0x360
[   82.013640][   T10]      netlink_unicast+0x449/0x710
[   82.013640][   T10]      netlink_sendmsg+0x723/0xbe0
[   82.013640][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   82.013640][   T10]      ___sys_sendmsg+0xee/0x170
[   82.013640][   T10]      __sys_sendmsg+0xcd/0x170
[   82.013640][   T10]      do_syscall_64+0xc6/0x1e0
[   82.013640][   T10] 
[   82.015892][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   82.015892][   T10]      ipv6_add_dev+0x3ba/0x11c0
[   82.015892][   T10]      ipv6_find_idev+0x102/0x170
[   82.015892][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   82.015892][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   82.015892][   T10]      netlink_rcv_skb+0x130/0x360
[   82.015892][   T10]      netlink_unicast+0x449/0x710
[   82.015892][   T10]      netlink_sendmsg+0x723/0xbe0
[   82.015892][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   82.015892][   T10]      ___sys_sendmsg+0xee/0x170
[   82.015892][   T10]      __sys_sendmsg+0xcd/0x170
[   82.015892][   T10]      do_syscall_64+0xc6/0x1e0
[   82.015892][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   82.015892][   T10] 
[   82.017603][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   82.017603][   T10]      neigh_parms_alloc+0x1e5/0x510
[   82.017603][   T10]      ipv6_add_dev+0x2fe/0x11c0
[   82.017603][   T10]      ipv6_find_idev+0x102/0x170
[   82.017603][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   82.017603][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   82.017603][   T10]      netlink_rcv_skb+0x130/0x360
[   82.017603][   T10]      netlink_unicast+0x449/0x710
[   82.017603][   T10]      netlink_sendmsg+0x723/0xbe0
[   82.017603][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   82.017603][   T10]      ___sys_sendmsg+0xee/0x170
[   82.017603][   T10]      __sys_sendmsg+0xcd/0x170
[   82.017603][   T10]      do_syscall_64+0xc6/0x1e0
[   82.017603][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   82.017603][   T10] 
[   92.257847][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[   92.258507][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   92.258507][   T10]      dst_init+0x84/0x4a0
[   92.258507][   T10]      dst_alloc+0x97/0x150
[   92.258507][   T10]      ip6_dst_alloc+0x23/0x90
[   92.258507][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   92.258507][   T10]      ip6_pol_route+0x56f/0x840
[   92.258507][   T10]      fib6_rule_lookup+0x456/0x630
[   92.258507][   T10]      ip6_route_input+0x59c/0xa50
[   92.258507][   T10]      ipv6_rcv+0x397/0x810
[   92.258507][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[   92.258507][   T10]      process_backlog+0x101/0x620
[   92.258507][   T10]      __napi_poll.constprop.0+0xa2/0x460
[   92.258507][   T10]      net_rx_action+0x495/0xbe0
[   92.258507][   T10]      __do_softirq+0x1b5/0x7f6
[   92.258507][   T10] 
[   92.260467][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   92.260467][   T10]      netdev_get_by_index+0x5e/0x80
[   92.260467][   T10]      fib6_nh_init+0x3d8/0x1580
[   92.260467][   T10]      ip6_route_info_create+0xf18/0x17d0
[   92.260467][   T10]      ip6_route_add+0x1c/0x140
[   92.260467][   T10]      addrconf_prefix_route+0x2a6/0x430
[   92.260467][   T10]      inet6_addr_add+0x4f8/0xa40
[   92.260467][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   92.260467][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   92.260467][   T10]      netlink_rcv_skb+0x130/0x360
[   92.260467][   T10]      netlink_unicast+0x449/0x710
[   92.260467][   T10]      netlink_sendmsg+0x723/0xbe0
[   92.260467][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   92.260467][   T10]      ___sys_sendmsg+0xee/0x170
[   92.260467][   T10]      __sys_sendmsg+0xcd/0x170
[   92.260467][   T10]      do_syscall_64+0xc6/0x1e0
[   92.260467][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   92.260467][   T10] 
[   92.262802][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   92.262802][   T10]      netdev_get_by_index+0x5e/0x80
[   92.262802][   T10]      fib6_nh_init+0x3d8/0x1580
[   92.262802][   T10]      ip6_route_info_create+0xf18/0x17d0
[   92.262802][   T10]      addrconf_f6i_alloc+0x315/0x560
[   92.262802][   T10]      ipv6_add_addr+0x411/0x2000
[   92.262802][   T10]      inet6_addr_add+0x30e/0xa40
[   92.262802][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   92.262802][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   92.262802][   T10]      netlink_rcv_skb+0x130/0x360
[   92.262802][   T10]      netlink_unicast+0x449/0x710
[   92.262802][   T10]      netlink_sendmsg+0x723/0xbe0
[   92.262802][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   92.262802][   T10]      ___sys_sendmsg+0xee/0x170
[   92.262802][   T10]      __sys_sendmsg+0xcd/0x170
[   92.262802][   T10]      do_syscall_64+0xc6/0x1e0
[   92.262802][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   92.262802][   T10] 
[   92.265108][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   92.265108][   T10]      netdev_get_by_index+0x5e/0x80
[   92.265108][   T10]      fib6_nh_init+0x3d8/0x1580
[   92.265108][   T10]      ip6_route_info_create+0xf18/0x17d0
[   92.265108][   T10]      ip6_route_add+0x1c/0x140
[   92.265108][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[   92.265108][   T10]      addrconf_add_dev+0xe2/0x170
[   92.265108][   T10]      inet6_addr_add+0x12f/0xa40
[   92.265108][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   92.265108][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   92.265108][   T10]      netlink_rcv_skb+0x130/0x360
[   92.265108][   T10]      netlink_unicast+0x449/0x710
[   92.265108][   T10]      netlink_sendmsg+0x723/0xbe0
[   92.265108][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   92.265108][   T10]      ___sys_sendmsg+0xee/0x170
[   92.265108][   T10]      __sys_sendmsg+0xcd/0x170
[   92.265108][   T10]      do_syscall_64+0xc6/0x1e0
[   92.265108][   T10] 
[   92.267445][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   92.267445][   T10]      ipv6_add_dev+0x3ba/0x11c0
[   92.267445][   T10]      ipv6_find_idev+0x102/0x170
[   92.267445][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   92.267445][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   92.267445][   T10]      netlink_rcv_skb+0x130/0x360
[   92.267445][   T10]      netlink_unicast+0x449/0x710
[   92.267445][   T10]      netlink_sendmsg+0x723/0xbe0
[   92.267445][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   92.267445][   T10]      ___sys_sendmsg+0xee/0x170
[   92.267445][   T10]      __sys_sendmsg+0xcd/0x170
[   92.267445][   T10]      do_syscall_64+0xc6/0x1e0
[   92.267445][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   92.267445][   T10] 
[   92.269211][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[   92.269211][   T10]      neigh_parms_alloc+0x1e5/0x510
[   92.269211][   T10]      ipv6_add_dev+0x2fe/0x11c0
[   92.269211][   T10]      ipv6_find_idev+0x102/0x170
[   92.269211][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   92.269211][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   92.269211][   T10]      netlink_rcv_skb+0x130/0x360
[   92.269211][   T10]      netlink_unicast+0x449/0x710
[   92.269211][   T10]      netlink_sendmsg+0x723/0xbe0
[   92.269211][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   92.269211][   T10]      ___sys_sendmsg+0xee/0x170
[   92.269211][   T10]      __sys_sendmsg+0xcd/0x170
[   92.269211][   T10]      do_syscall_64+0xc6/0x1e0
[   92.269211][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   92.269211][   T10] 
[   92.271121][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[   92.271402][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   92.271402][   T10]      dst_init+0x84/0x4a0
[   92.271402][   T10]      dst_alloc+0x97/0x150
[   92.271402][   T10]      ip6_dst_alloc+0x23/0x90
[   92.271402][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   92.271402][   T10]      ip6_pol_route+0x56f/0x840
[   92.271402][   T10]      fib6_rule_lookup+0x456/0x630
[   92.271402][   T10]      ip6_route_input+0x59c/0xa50
[   92.271402][   T10]      ipv6_rcv+0x397/0x810
[   92.271402][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[   92.271402][   T10]      process_backlog+0x101/0x620
[   92.271402][   T10]      __napi_poll.constprop.0+0xa2/0x460
[   92.271402][   T10]      net_rx_action+0x495/0xbe0
[   92.271402][   T10]      __do_softirq+0x1b5/0x7f6
[   92.271402][   T10] 
[   92.273238][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   92.273238][   T10]      netdev_get_by_index+0x5e/0x80
[   92.273238][   T10]      fib6_nh_init+0x3d8/0x1580
[   92.273238][   T10]      ip6_route_info_create+0xf18/0x17d0
[   92.273238][   T10]      ip6_route_add+0x1c/0x140
[   92.273238][   T10]      addrconf_prefix_route+0x2a6/0x430
[   92.273238][   T10]      inet6_addr_add+0x4f8/0xa40
[   92.273238][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   92.273238][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   92.273238][   T10]      netlink_rcv_skb+0x130/0x360
[   92.273238][   T10]      netlink_unicast+0x449/0x710
[   92.273238][   T10]      netlink_sendmsg+0x723/0xbe0
[   92.273238][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   92.273238][   T10]      ___sys_sendmsg+0xee/0x170
[   92.273238][   T10]      __sys_sendmsg+0xcd/0x170
[   92.273238][   T10]      do_syscall_64+0xc6/0x1e0
[   92.273238][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   92.273238][   T10] 
[   92.275506][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   92.275506][   T10]      netdev_get_by_index+0x5e/0x80
[   92.275506][   T10]      fib6_nh_init+0x3d8/0x1580
[   92.275506][   T10]      ip6_route_info_create+0xf18/0x17d0
[   92.275506][   T10]      addrconf_f6i_alloc+0x315/0x560
[   92.275506][   T10]      ipv6_add_addr+0x411/0x2000
[   92.275506][   T10]      inet6_addr_add+0x30e/0xa40
[   92.275506][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   92.275506][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   92.275506][   T10]      netlink_rcv_skb+0x130/0x360
[   92.275506][   T10]      netlink_unicast+0x449/0x710
[   92.275506][   T10]      netlink_sendmsg+0x723/0xbe0
[   92.275506][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   92.275506][   T10]      ___sys_sendmsg+0xee/0x170
[   92.275506][   T10]      __sys_sendmsg+0xcd/0x170
[   92.275506][   T10]      do_syscall_64+0xc6/0x1e0
[   92.275506][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   92.275506][   T10] 
[   92.277763][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   92.277763][   T10]      netdev_get_by_index+0x5e/0x80
[   92.277763][   T10]      fib6_nh_init+0x3d8/0x1580
[   92.277763][   T10]      ip6_route_info_create+0xf18/0x17d0
[   92.277763][   T10]      ip6_route_add+0x1c/0x140
[   92.277763][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[   92.277763][   T10]      addrconf_add_dev+0xe2/0x170
[   92.277763][   T10]      inet6_addr_add+0x12f/0xa40
[   92.277763][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[   92.277763][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   92.277763][   T10]      netlink_rcv_skb+0x130/0x360
[   92.277763][   T10]      netlink_unicast+0x449/0x710
[   92.277763][   T10]      netlink_sendmsg+0x723/0xbe0
[   92.277763][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   92.277763][   T10]      ___sys_sendmsg+0xee/0x170
[   92.277763][   T10]      __sys_sendmsg+0xcd/0x170
[   92.277763][   T10]      do_syscall_64+0xc6/0x1e0
[   92.277763][   T10] 
[   92.279973][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   92.279973][   T10]      ipv6_add_dev+0x3ba/0x11c0
[   92.279973][   T10]      ipv6_find_idev+0x102/0x170
[   92.279973][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   92.279973][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   92.279973][   T10]      netlink_rcv_skb+0x130/0x360
[   92.279973][   T10]      netlink_unicast+0x449/0x710
[   92.279973][   T10]      netlink_sendmsg+0x723/0xbe0
[   92.279973][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   92.279973][   T10]      ___sys_sendmsg+0xee/0x170
[   92.279973][   T10]      __sys_sendmsg+0xcd/0x170
[   92.279973][   T10]      do_syscall_64+0xc6/0x1e0
[   92.279973][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   92.279973][   T10] 
[   92.281722][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[   92.281722][   T10]      neigh_parms_alloc+0x1e5/0x510
[   92.281722][   T10]      ipv6_add_dev+0x2fe/0x11c0
[   92.281722][   T10]      ipv6_find_idev+0x102/0x170
[   92.281722][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[   92.281722][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   92.281722][   T10]      netlink_rcv_skb+0x130/0x360
[   92.281722][   T10]      netlink_unicast+0x449/0x710
[   92.281722][   T10]      netlink_sendmsg+0x723/0xbe0
[   92.281722][   T10]      ____sys_sendmsg+0x7b2/0xa10
[   92.281722][   T10]      ___sys_sendmsg+0xee/0x170
[   92.281722][   T10]      __sys_sendmsg+0xcd/0x170
[   92.281722][   T10]      do_syscall_64+0xc6/0x1e0
[   92.281722][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   92.281722][   T10] 
[  102.521855][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  102.522417][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  102.522417][   T10]      dst_init+0x84/0x4a0
[  102.522417][   T10]      dst_alloc+0x97/0x150
[  102.522417][   T10]      ip6_dst_alloc+0x23/0x90
[  102.522417][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  102.522417][   T10]      ip6_pol_route+0x56f/0x840
[  102.522417][   T10]      fib6_rule_lookup+0x456/0x630
[  102.522417][   T10]      ip6_route_input+0x59c/0xa50
[  102.522417][   T10]      ipv6_rcv+0x397/0x810
[  102.522417][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  102.522417][   T10]      process_backlog+0x101/0x620
[  102.522417][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  102.522417][   T10]      net_rx_action+0x495/0xbe0
[  102.522417][   T10]      __do_softirq+0x1b5/0x7f6
[  102.522417][   T10] 
[  102.524328][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  102.524328][   T10]      netdev_get_by_index+0x5e/0x80
[  102.524328][   T10]      fib6_nh_init+0x3d8/0x1580
[  102.524328][   T10]      ip6_route_info_create+0xf18/0x17d0
[  102.524328][   T10]      ip6_route_add+0x1c/0x140
[  102.524328][   T10]      addrconf_prefix_route+0x2a6/0x430
[  102.524328][   T10]      inet6_addr_add+0x4f8/0xa40
[  102.524328][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  102.524328][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  102.524328][   T10]      netlink_rcv_skb+0x130/0x360
[  102.524328][   T10]      netlink_unicast+0x449/0x710
[  102.524328][   T10]      netlink_sendmsg+0x723/0xbe0
[  102.524328][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  102.524328][   T10]      ___sys_sendmsg+0xee/0x170
[  102.524328][   T10]      __sys_sendmsg+0xcd/0x170
[  102.524328][   T10]      do_syscall_64+0xc6/0x1e0
[  102.524328][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  102.524328][   T10] 
[  102.526587][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  102.526587][   T10]      netdev_get_by_index+0x5e/0x80
[  102.526587][   T10]      fib6_nh_init+0x3d8/0x1580
[  102.526587][   T10]      ip6_route_info_create+0xf18/0x17d0
[  102.526587][   T10]      addrconf_f6i_alloc+0x315/0x560
[  102.526587][   T10]      ipv6_add_addr+0x411/0x2000
[  102.526587][   T10]      inet6_addr_add+0x30e/0xa40
[  102.526587][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  102.526587][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  102.526587][   T10]      netlink_rcv_skb+0x130/0x360
[  102.526587][   T10]      netlink_unicast+0x449/0x710
[  102.526587][   T10]      netlink_sendmsg+0x723/0xbe0
[  102.526587][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  102.526587][   T10]      ___sys_sendmsg+0xee/0x170
[  102.526587][   T10]      __sys_sendmsg+0xcd/0x170
[  102.526587][   T10]      do_syscall_64+0xc6/0x1e0
[  102.526587][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  102.526587][   T10] 
[  102.528843][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  102.528843][   T10]      netdev_get_by_index+0x5e/0x80
[  102.528843][   T10]      fib6_nh_init+0x3d8/0x1580
[  102.528843][   T10]      ip6_route_info_create+0xf18/0x17d0
[  102.528843][   T10]      ip6_route_add+0x1c/0x140
[  102.528843][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  102.528843][   T10]      addrconf_add_dev+0xe2/0x170
[  102.528843][   T10]      inet6_addr_add+0x12f/0xa40
[  102.528843][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  102.528843][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  102.528843][   T10]      netlink_rcv_skb+0x130/0x360
[  102.528843][   T10]      netlink_unicast+0x449/0x710
[  102.528843][   T10]      netlink_sendmsg+0x723/0xbe0
[  102.528843][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  102.528843][   T10]      ___sys_sendmsg+0xee/0x170
[  102.528843][   T10]      __sys_sendmsg+0xcd/0x170
[  102.528843][   T10]      do_syscall_64+0xc6/0x1e0
[  102.528843][   T10] 
[  102.531061][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  102.531061][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  102.531061][   T10]      ipv6_find_idev+0x102/0x170
[  102.531061][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  102.531061][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  102.531061][   T10]      netlink_rcv_skb+0x130/0x360
[  102.531061][   T10]      netlink_unicast+0x449/0x710
[  102.531061][   T10]      netlink_sendmsg+0x723/0xbe0
[  102.531061][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  102.531061][   T10]      ___sys_sendmsg+0xee/0x170
[  102.531061][   T10]      __sys_sendmsg+0xcd/0x170
[  102.531061][   T10]      do_syscall_64+0xc6/0x1e0
[  102.531061][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  102.531061][   T10] 
[  102.532798][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  102.532798][   T10]      neigh_parms_alloc+0x1e5/0x510
[  102.532798][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  102.532798][   T10]      ipv6_find_idev+0x102/0x170
[  102.532798][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  102.532798][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  102.532798][   T10]      netlink_rcv_skb+0x130/0x360
[  102.532798][   T10]      netlink_unicast+0x449/0x710
[  102.532798][   T10]      netlink_sendmsg+0x723/0xbe0
[  102.532798][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  102.532798][   T10]      ___sys_sendmsg+0xee/0x170
[  102.532798][   T10]      __sys_sendmsg+0xcd/0x170
[  102.532798][   T10]      do_syscall_64+0xc6/0x1e0
[  102.532798][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  102.532798][   T10] 
[  102.534708][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  102.534974][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  102.534974][   T10]      dst_init+0x84/0x4a0
[  102.534974][   T10]      dst_alloc+0x97/0x150
[  102.534974][   T10]      ip6_dst_alloc+0x23/0x90
[  102.534974][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  102.534974][   T10]      ip6_pol_route+0x56f/0x840
[  102.534974][   T10]      fib6_rule_lookup+0x456/0x630
[  102.534974][   T10]      ip6_route_input+0x59c/0xa50
[  102.534974][   T10]      ipv6_rcv+0x397/0x810
[  102.534974][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  102.534974][   T10]      process_backlog+0x101/0x620
[  102.534974][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  102.534974][   T10]      net_rx_action+0x495/0xbe0
[  102.534974][   T10]      __do_softirq+0x1b5/0x7f6
[  102.534974][   T10] 
[  102.536831][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  102.536831][   T10]      netdev_get_by_index+0x5e/0x80
[  102.536831][   T10]      fib6_nh_init+0x3d8/0x1580
[  102.536831][   T10]      ip6_route_info_create+0xf18/0x17d0
[  102.536831][   T10]      ip6_route_add+0x1c/0x140
[  102.536831][   T10]      addrconf_prefix_route+0x2a6/0x430
[  102.536831][   T10]      inet6_addr_add+0x4f8/0xa40
[  102.536831][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  102.536831][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  102.536831][   T10]      netlink_rcv_skb+0x130/0x360
[  102.536831][   T10]      netlink_unicast+0x449/0x710
[  102.536831][   T10]      netlink_sendmsg+0x723/0xbe0
[  102.536831][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  102.536831][   T10]      ___sys_sendmsg+0xee/0x170
[  102.536831][   T10]      __sys_sendmsg+0xcd/0x170
[  102.536831][   T10]      do_syscall_64+0xc6/0x1e0
[  102.536831][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  102.536831][   T10] 
[  102.539087][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  102.539087][   T10]      netdev_get_by_index+0x5e/0x80
[  102.539087][   T10]      fib6_nh_init+0x3d8/0x1580
[  102.539087][   T10]      ip6_route_info_create+0xf18/0x17d0
[  102.539087][   T10]      addrconf_f6i_alloc+0x315/0x560
[  102.539087][   T10]      ipv6_add_addr+0x411/0x2000
[  102.539087][   T10]      inet6_addr_add+0x30e/0xa40
[  102.539087][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  102.539087][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  102.539087][   T10]      netlink_rcv_skb+0x130/0x360
[  102.539087][   T10]      netlink_unicast+0x449/0x710
[  102.539087][   T10]      netlink_sendmsg+0x723/0xbe0
[  102.539087][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  102.539087][   T10]      ___sys_sendmsg+0xee/0x170
[  102.539087][   T10]      __sys_sendmsg+0xcd/0x170
[  102.539087][   T10]      do_syscall_64+0xc6/0x1e0
[  102.539087][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  102.539087][   T10] 
[  102.541308][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  102.541308][   T10]      netdev_get_by_index+0x5e/0x80
[  102.541308][   T10]      fib6_nh_init+0x3d8/0x1580
[  102.541308][   T10]      ip6_route_info_create+0xf18/0x17d0
[  102.541308][   T10]      ip6_route_add+0x1c/0x140
[  102.541308][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  102.541308][   T10]      addrconf_add_dev+0xe2/0x170
[  102.541308][   T10]      inet6_addr_add+0x12f/0xa40
[  102.541308][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  102.541308][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  102.541308][   T10]      netlink_rcv_skb+0x130/0x360
[  102.541308][   T10]      netlink_unicast+0x449/0x710
[  102.541308][   T10]      netlink_sendmsg+0x723/0xbe0
[  102.541308][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  102.541308][   T10]      ___sys_sendmsg+0xee/0x170
[  102.541308][   T10]      __sys_sendmsg+0xcd/0x170
[  102.541308][   T10]      do_syscall_64+0xc6/0x1e0
[  102.541308][   T10] 
[  102.543540][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  102.543540][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  102.543540][   T10]      ipv6_find_idev+0x102/0x170
[  102.543540][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  102.543540][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  102.543540][   T10]      netlink_rcv_skb+0x130/0x360
[  102.543540][   T10]      netlink_unicast+0x449/0x710
[  102.543540][   T10]      netlink_sendmsg+0x723/0xbe0
[  102.543540][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  102.543540][   T10]      ___sys_sendmsg+0xee/0x170
[  102.543540][   T10]      __sys_sendmsg+0xcd/0x170
[  102.543540][   T10]      do_syscall_64+0xc6/0x1e0
[  102.543540][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  102.543540][   T10] 
[  102.545263][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  102.545263][   T10]      neigh_parms_alloc+0x1e5/0x510
[  102.545263][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  102.545263][   T10]      ipv6_find_idev+0x102/0x170
[  102.545263][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  102.545263][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  102.545263][   T10]      netlink_rcv_skb+0x130/0x360
[  102.545263][   T10]      netlink_unicast+0x449/0x710
[  102.545263][   T10]      netlink_sendmsg+0x723/0xbe0
[  102.545263][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  102.545263][   T10]      ___sys_sendmsg+0xee/0x170
[  102.545263][   T10]      __sys_sendmsg+0xcd/0x170
[  102.545263][   T10]      do_syscall_64+0xc6/0x1e0
[  102.545263][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  102.545263][   T10] 
[  112.609862][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  112.610500][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  112.610500][   T10]      dst_init+0x84/0x4a0
[  112.610500][   T10]      dst_alloc+0x97/0x150
[  112.610500][   T10]      ip6_dst_alloc+0x23/0x90
[  112.610500][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  112.610500][   T10]      ip6_pol_route+0x56f/0x840
[  112.610500][   T10]      fib6_rule_lookup+0x456/0x630
[  112.610500][   T10]      ip6_route_input+0x59c/0xa50
[  112.610500][   T10]      ipv6_rcv+0x397/0x810
[  112.610500][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  112.610500][   T10]      process_backlog+0x101/0x620
[  112.610500][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  112.610500][   T10]      net_rx_action+0x495/0xbe0
[  112.610500][   T10]      __do_softirq+0x1b5/0x7f6
[  112.610500][   T10] 
[  112.612475][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  112.612475][   T10]      netdev_get_by_index+0x5e/0x80
[  112.612475][   T10]      fib6_nh_init+0x3d8/0x1580
[  112.612475][   T10]      ip6_route_info_create+0xf18/0x17d0
[  112.612475][   T10]      ip6_route_add+0x1c/0x140
[  112.612475][   T10]      addrconf_prefix_route+0x2a6/0x430
[  112.612475][   T10]      inet6_addr_add+0x4f8/0xa40
[  112.612475][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  112.612475][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  112.612475][   T10]      netlink_rcv_skb+0x130/0x360
[  112.612475][   T10]      netlink_unicast+0x449/0x710
[  112.612475][   T10]      netlink_sendmsg+0x723/0xbe0
[  112.612475][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  112.612475][   T10]      ___sys_sendmsg+0xee/0x170
[  112.612475][   T10]      __sys_sendmsg+0xcd/0x170
[  112.612475][   T10]      do_syscall_64+0xc6/0x1e0
[  112.612475][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  112.612475][   T10] 
[  112.614746][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  112.614746][   T10]      netdev_get_by_index+0x5e/0x80
[  112.614746][   T10]      fib6_nh_init+0x3d8/0x1580
[  112.614746][   T10]      ip6_route_info_create+0xf18/0x17d0
[  112.614746][   T10]      addrconf_f6i_alloc+0x315/0x560
[  112.614746][   T10]      ipv6_add_addr+0x411/0x2000
[  112.614746][   T10]      inet6_addr_add+0x30e/0xa40
[  112.614746][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  112.614746][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  112.614746][   T10]      netlink_rcv_skb+0x130/0x360
[  112.614746][   T10]      netlink_unicast+0x449/0x710
[  112.614746][   T10]      netlink_sendmsg+0x723/0xbe0
[  112.614746][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  112.614746][   T10]      ___sys_sendmsg+0xee/0x170
[  112.614746][   T10]      __sys_sendmsg+0xcd/0x170
[  112.614746][   T10]      do_syscall_64+0xc6/0x1e0
[  112.614746][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  112.614746][   T10] 
[  112.616986][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  112.616986][   T10]      netdev_get_by_index+0x5e/0x80
[  112.616986][   T10]      fib6_nh_init+0x3d8/0x1580
[  112.616986][   T10]      ip6_route_info_create+0xf18/0x17d0
[  112.616986][   T10]      ip6_route_add+0x1c/0x140
[  112.616986][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  112.616986][   T10]      addrconf_add_dev+0xe2/0x170
[  112.616986][   T10]      inet6_addr_add+0x12f/0xa40
[  112.616986][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  112.616986][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  112.616986][   T10]      netlink_rcv_skb+0x130/0x360
[  112.616986][   T10]      netlink_unicast+0x449/0x710
[  112.616986][   T10]      netlink_sendmsg+0x723/0xbe0
[  112.616986][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  112.616986][   T10]      ___sys_sendmsg+0xee/0x170
[  112.616986][   T10]      __sys_sendmsg+0xcd/0x170
[  112.616986][   T10]      do_syscall_64+0xc6/0x1e0
[  112.616986][   T10] 
[  112.619188][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  112.619188][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  112.619188][   T10]      ipv6_find_idev+0x102/0x170
[  112.619188][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  112.619188][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  112.619188][   T10]      netlink_rcv_skb+0x130/0x360
[  112.619188][   T10]      netlink_unicast+0x449/0x710
[  112.619188][   T10]      netlink_sendmsg+0x723/0xbe0
[  112.619188][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  112.619188][   T10]      ___sys_sendmsg+0xee/0x170
[  112.619188][   T10]      __sys_sendmsg+0xcd/0x170
[  112.619188][   T10]      do_syscall_64+0xc6/0x1e0
[  112.619188][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  112.619188][   T10] 
[  112.620933][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  112.620933][   T10]      neigh_parms_alloc+0x1e5/0x510
[  112.620933][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  112.620933][   T10]      ipv6_find_idev+0x102/0x170
[  112.620933][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  112.620933][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  112.620933][   T10]      netlink_rcv_skb+0x130/0x360
[  112.620933][   T10]      netlink_unicast+0x449/0x710
[  112.620933][   T10]      netlink_sendmsg+0x723/0xbe0
[  112.620933][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  112.620933][   T10]      ___sys_sendmsg+0xee/0x170
[  112.620933][   T10]      __sys_sendmsg+0xcd/0x170
[  112.620933][   T10]      do_syscall_64+0xc6/0x1e0
[  112.620933][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  112.620933][   T10] 
[  112.622831][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  112.623094][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  112.623094][   T10]      dst_init+0x84/0x4a0
[  112.623094][   T10]      dst_alloc+0x97/0x150
[  112.623094][   T10]      ip6_dst_alloc+0x23/0x90
[  112.623094][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  112.623094][   T10]      ip6_pol_route+0x56f/0x840
[  112.623094][   T10]      fib6_rule_lookup+0x456/0x630
[  112.623094][   T10]      ip6_route_input+0x59c/0xa50
[  112.623094][   T10]      ipv6_rcv+0x397/0x810
[  112.623094][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  112.623094][   T10]      process_backlog+0x101/0x620
[  112.623094][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  112.623094][   T10]      net_rx_action+0x495/0xbe0
[  112.623094][   T10]      __do_softirq+0x1b5/0x7f6
[  112.623094][   T10] 
[  112.624928][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  112.624928][   T10]      netdev_get_by_index+0x5e/0x80
[  112.624928][   T10]      fib6_nh_init+0x3d8/0x1580
[  112.624928][   T10]      ip6_route_info_create+0xf18/0x17d0
[  112.624928][   T10]      ip6_route_add+0x1c/0x140
[  112.624928][   T10]      addrconf_prefix_route+0x2a6/0x430
[  112.624928][   T10]      inet6_addr_add+0x4f8/0xa40
[  112.624928][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  112.624928][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  112.624928][   T10]      netlink_rcv_skb+0x130/0x360
[  112.624928][   T10]      netlink_unicast+0x449/0x710
[  112.624928][   T10]      netlink_sendmsg+0x723/0xbe0
[  112.624928][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  112.624928][   T10]      ___sys_sendmsg+0xee/0x170
[  112.624928][   T10]      __sys_sendmsg+0xcd/0x170
[  112.624928][   T10]      do_syscall_64+0xc6/0x1e0
[  112.624928][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  112.624928][   T10] 
[  112.627170][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  112.627170][   T10]      netdev_get_by_index+0x5e/0x80
[  112.627170][   T10]      fib6_nh_init+0x3d8/0x1580
[  112.627170][   T10]      ip6_route_info_create+0xf18/0x17d0
[  112.627170][   T10]      addrconf_f6i_alloc+0x315/0x560
[  112.627170][   T10]      ipv6_add_addr+0x411/0x2000
[  112.627170][   T10]      inet6_addr_add+0x30e/0xa40
[  112.627170][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  112.627170][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  112.627170][   T10]      netlink_rcv_skb+0x130/0x360
[  112.627170][   T10]      netlink_unicast+0x449/0x710
[  112.627170][   T10]      netlink_sendmsg+0x723/0xbe0
[  112.627170][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  112.627170][   T10]      ___sys_sendmsg+0xee/0x170
[  112.627170][   T10]      __sys_sendmsg+0xcd/0x170
[  112.627170][   T10]      do_syscall_64+0xc6/0x1e0
[  112.627170][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  112.627170][   T10] 
[  112.629408][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  112.629408][   T10]      netdev_get_by_index+0x5e/0x80
[  112.629408][   T10]      fib6_nh_init+0x3d8/0x1580
[  112.629408][   T10]      ip6_route_info_create+0xf18/0x17d0
[  112.629408][   T10]      ip6_route_add+0x1c/0x140
[  112.629408][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  112.629408][   T10]      addrconf_add_dev+0xe2/0x170
[  112.629408][   T10]      inet6_addr_add+0x12f/0xa40
[  112.629408][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  112.629408][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  112.629408][   T10]      netlink_rcv_skb+0x130/0x360
[  112.629408][   T10]      netlink_unicast+0x449/0x710
[  112.629408][   T10]      netlink_sendmsg+0x723/0xbe0
[  112.629408][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  112.629408][   T10]      ___sys_sendmsg+0xee/0x170
[  112.629408][   T10]      __sys_sendmsg+0xcd/0x170
[  112.629408][   T10]      do_syscall_64+0xc6/0x1e0
[  112.629408][   T10] 
[  112.631631][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  112.631631][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  112.631631][   T10]      ipv6_find_idev+0x102/0x170
[  112.631631][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  112.631631][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  112.631631][   T10]      netlink_rcv_skb+0x130/0x360
[  112.631631][   T10]      netlink_unicast+0x449/0x710
[  112.631631][   T10]      netlink_sendmsg+0x723/0xbe0
[  112.631631][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  112.631631][   T10]      ___sys_sendmsg+0xee/0x170
[  112.631631][   T10]      __sys_sendmsg+0xcd/0x170
[  112.631631][   T10]      do_syscall_64+0xc6/0x1e0
[  112.631631][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  112.631631][   T10] 
[  112.633375][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  112.633375][   T10]      neigh_parms_alloc+0x1e5/0x510
[  112.633375][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  112.633375][   T10]      ipv6_find_idev+0x102/0x170
[  112.633375][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  112.633375][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  112.633375][   T10]      netlink_rcv_skb+0x130/0x360
[  112.633375][   T10]      netlink_unicast+0x449/0x710
[  112.633375][   T10]      netlink_sendmsg+0x723/0xbe0
[  112.633375][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  112.633375][   T10]      ___sys_sendmsg+0xee/0x170
[  112.633375][   T10]      __sys_sendmsg+0xcd/0x170
[  112.633375][   T10]      do_syscall_64+0xc6/0x1e0
[  112.633375][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  112.633375][   T10] 
[  122.705804][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  122.706244][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  122.706244][   T10]      dst_init+0x84/0x4a0
[  122.706244][   T10]      dst_alloc+0x97/0x150
[  122.706244][   T10]      ip6_dst_alloc+0x23/0x90
[  122.706244][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  122.706244][   T10]      ip6_pol_route+0x56f/0x840
[  122.706244][   T10]      fib6_rule_lookup+0x456/0x630
[  122.706244][   T10]      ip6_route_input+0x59c/0xa50
[  122.706244][   T10]      ipv6_rcv+0x397/0x810
[  122.706244][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  122.706244][   T10]      process_backlog+0x101/0x620
[  122.706244][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  122.706244][   T10]      net_rx_action+0x495/0xbe0
[  122.706244][   T10]      __do_softirq+0x1b5/0x7f6
[  122.706244][   T10] 
[  122.708131][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  122.708131][   T10]      netdev_get_by_index+0x5e/0x80
[  122.708131][   T10]      fib6_nh_init+0x3d8/0x1580
[  122.708131][   T10]      ip6_route_info_create+0xf18/0x17d0
[  122.708131][   T10]      ip6_route_add+0x1c/0x140
[  122.708131][   T10]      addrconf_prefix_route+0x2a6/0x430
[  122.708131][   T10]      inet6_addr_add+0x4f8/0xa40
[  122.708131][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  122.708131][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  122.708131][   T10]      netlink_rcv_skb+0x130/0x360
[  122.708131][   T10]      netlink_unicast+0x449/0x710
[  122.708131][   T10]      netlink_sendmsg+0x723/0xbe0
[  122.708131][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  122.708131][   T10]      ___sys_sendmsg+0xee/0x170
[  122.708131][   T10]      __sys_sendmsg+0xcd/0x170
[  122.708131][   T10]      do_syscall_64+0xc6/0x1e0
[  122.708131][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  122.708131][   T10] 
[  122.710374][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  122.710374][   T10]      netdev_get_by_index+0x5e/0x80
[  122.710374][   T10]      fib6_nh_init+0x3d8/0x1580
[  122.710374][   T10]      ip6_route_info_create+0xf18/0x17d0
[  122.710374][   T10]      addrconf_f6i_alloc+0x315/0x560
[  122.710374][   T10]      ipv6_add_addr+0x411/0x2000
[  122.710374][   T10]      inet6_addr_add+0x30e/0xa40
[  122.710374][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  122.710374][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  122.710374][   T10]      netlink_rcv_skb+0x130/0x360
[  122.710374][   T10]      netlink_unicast+0x449/0x710
[  122.710374][   T10]      netlink_sendmsg+0x723/0xbe0
[  122.710374][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  122.710374][   T10]      ___sys_sendmsg+0xee/0x170
[  122.710374][   T10]      __sys_sendmsg+0xcd/0x170
[  122.710374][   T10]      do_syscall_64+0xc6/0x1e0
[  122.710374][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  122.710374][   T10] 
[  122.712630][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  122.712630][   T10]      netdev_get_by_index+0x5e/0x80
[  122.712630][   T10]      fib6_nh_init+0x3d8/0x1580
[  122.712630][   T10]      ip6_route_info_create+0xf18/0x17d0
[  122.712630][   T10]      ip6_route_add+0x1c/0x140
[  122.712630][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  122.712630][   T10]      addrconf_add_dev+0xe2/0x170
[  122.712630][   T10]      inet6_addr_add+0x12f/0xa40
[  122.712630][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  122.712630][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  122.712630][   T10]      netlink_rcv_skb+0x130/0x360
[  122.712630][   T10]      netlink_unicast+0x449/0x710
[  122.712630][   T10]      netlink_sendmsg+0x723/0xbe0
[  122.712630][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  122.712630][   T10]      ___sys_sendmsg+0xee/0x170
[  122.712630][   T10]      __sys_sendmsg+0xcd/0x170
[  122.712630][   T10]      do_syscall_64+0xc6/0x1e0
[  122.712630][   T10] 
[  122.714864][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  122.714864][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  122.714864][   T10]      ipv6_find_idev+0x102/0x170
[  122.714864][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  122.714864][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  122.714864][   T10]      netlink_rcv_skb+0x130/0x360
[  122.714864][   T10]      netlink_unicast+0x449/0x710
[  122.714864][   T10]      netlink_sendmsg+0x723/0xbe0
[  122.714864][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  122.714864][   T10]      ___sys_sendmsg+0xee/0x170
[  122.714864][   T10]      __sys_sendmsg+0xcd/0x170
[  122.714864][   T10]      do_syscall_64+0xc6/0x1e0
[  122.714864][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  122.714864][   T10] 
[  122.716597][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  122.716597][   T10]      neigh_parms_alloc+0x1e5/0x510
[  122.716597][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  122.716597][   T10]      ipv6_find_idev+0x102/0x170
[  122.716597][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  122.716597][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  122.716597][   T10]      netlink_rcv_skb+0x130/0x360
[  122.716597][   T10]      netlink_unicast+0x449/0x710
[  122.716597][   T10]      netlink_sendmsg+0x723/0xbe0
[  122.716597][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  122.716597][   T10]      ___sys_sendmsg+0xee/0x170
[  122.716597][   T10]      __sys_sendmsg+0xcd/0x170
[  122.716597][   T10]      do_syscall_64+0xc6/0x1e0
[  122.716597][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  122.716597][   T10] 
[  122.718502][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  122.718780][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  122.718780][   T10]      dst_init+0x84/0x4a0
[  122.718780][   T10]      dst_alloc+0x97/0x150
[  122.718780][   T10]      ip6_dst_alloc+0x23/0x90
[  122.718780][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  122.718780][   T10]      ip6_pol_route+0x56f/0x840
[  122.718780][   T10]      fib6_rule_lookup+0x456/0x630
[  122.718780][   T10]      ip6_route_input+0x59c/0xa50
[  122.718780][   T10]      ipv6_rcv+0x397/0x810
[  122.718780][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  122.718780][   T10]      process_backlog+0x101/0x620
[  122.718780][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  122.718780][   T10]      net_rx_action+0x495/0xbe0
[  122.718780][   T10]      __do_softirq+0x1b5/0x7f6
[  122.718780][   T10] 
[  122.720652][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  122.720652][   T10]      netdev_get_by_index+0x5e/0x80
[  122.720652][   T10]      fib6_nh_init+0x3d8/0x1580
[  122.720652][   T10]      ip6_route_info_create+0xf18/0x17d0
[  122.720652][   T10]      ip6_route_add+0x1c/0x140
[  122.720652][   T10]      addrconf_prefix_route+0x2a6/0x430
[  122.720652][   T10]      inet6_addr_add+0x4f8/0xa40
[  122.720652][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  122.720652][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  122.720652][   T10]      netlink_rcv_skb+0x130/0x360
[  122.720652][   T10]      netlink_unicast+0x449/0x710
[  122.720652][   T10]      netlink_sendmsg+0x723/0xbe0
[  122.720652][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  122.720652][   T10]      ___sys_sendmsg+0xee/0x170
[  122.720652][   T10]      __sys_sendmsg+0xcd/0x170
[  122.720652][   T10]      do_syscall_64+0xc6/0x1e0
[  122.720652][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  122.720652][   T10] 
[  122.722885][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  122.722885][   T10]      netdev_get_by_index+0x5e/0x80
[  122.722885][   T10]      fib6_nh_init+0x3d8/0x1580
[  122.722885][   T10]      ip6_route_info_create+0xf18/0x17d0
[  122.722885][   T10]      addrconf_f6i_alloc+0x315/0x560
[  122.722885][   T10]      ipv6_add_addr+0x411/0x2000
[  122.722885][   T10]      inet6_addr_add+0x30e/0xa40
[  122.722885][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  122.722885][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  122.722885][   T10]      netlink_rcv_skb+0x130/0x360
[  122.722885][   T10]      netlink_unicast+0x449/0x710
[  122.722885][   T10]      netlink_sendmsg+0x723/0xbe0
[  122.722885][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  122.722885][   T10]      ___sys_sendmsg+0xee/0x170
[  122.722885][   T10]      __sys_sendmsg+0xcd/0x170
[  122.722885][   T10]      do_syscall_64+0xc6/0x1e0
[  122.722885][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  122.722885][   T10] 
[  122.725124][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  122.725124][   T10]      netdev_get_by_index+0x5e/0x80
[  122.725124][   T10]      fib6_nh_init+0x3d8/0x1580
[  122.725124][   T10]      ip6_route_info_create+0xf18/0x17d0
[  122.725124][   T10]      ip6_route_add+0x1c/0x140
[  122.725124][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  122.725124][   T10]      addrconf_add_dev+0xe2/0x170
[  122.725124][   T10]      inet6_addr_add+0x12f/0xa40
[  122.725124][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  122.725124][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  122.725124][   T10]      netlink_rcv_skb+0x130/0x360
[  122.725124][   T10]      netlink_unicast+0x449/0x710
[  122.725124][   T10]      netlink_sendmsg+0x723/0xbe0
[  122.725124][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  122.725124][   T10]      ___sys_sendmsg+0xee/0x170
[  122.725124][   T10]      __sys_sendmsg+0xcd/0x170
[  122.725124][   T10]      do_syscall_64+0xc6/0x1e0
[  122.725124][   T10] 
[  122.727326][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  122.727326][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  122.727326][   T10]      ipv6_find_idev+0x102/0x170
[  122.727326][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  122.727326][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  122.727326][   T10]      netlink_rcv_skb+0x130/0x360
[  122.727326][   T10]      netlink_unicast+0x449/0x710
[  122.727326][   T10]      netlink_sendmsg+0x723/0xbe0
[  122.727326][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  122.727326][   T10]      ___sys_sendmsg+0xee/0x170
[  122.727326][   T10]      __sys_sendmsg+0xcd/0x170
[  122.727326][   T10]      do_syscall_64+0xc6/0x1e0
[  122.727326][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  122.727326][   T10] 
[  122.729050][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  122.729050][   T10]      neigh_parms_alloc+0x1e5/0x510
[  122.729050][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  122.729050][   T10]      ipv6_find_idev+0x102/0x170
[  122.729050][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  122.729050][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  122.729050][   T10]      netlink_rcv_skb+0x130/0x360
[  122.729050][   T10]      netlink_unicast+0x449/0x710
[  122.729050][   T10]      netlink_sendmsg+0x723/0xbe0
[  122.729050][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  122.729050][   T10]      ___sys_sendmsg+0xee/0x170
[  122.729050][   T10]      __sys_sendmsg+0xcd/0x170
[  122.729050][   T10]      do_syscall_64+0xc6/0x1e0
[  122.729050][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  122.729050][   T10] 
[  132.961726][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  132.962157][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  132.962157][   T10]      dst_init+0x84/0x4a0
[  132.962157][   T10]      dst_alloc+0x97/0x150
[  132.962157][   T10]      ip6_dst_alloc+0x23/0x90
[  132.962157][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  132.962157][   T10]      ip6_pol_route+0x56f/0x840
[  132.962157][   T10]      fib6_rule_lookup+0x456/0x630
[  132.962157][   T10]      ip6_route_input+0x59c/0xa50
[  132.962157][   T10]      ipv6_rcv+0x397/0x810
[  132.962157][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  132.962157][   T10]      process_backlog+0x101/0x620
[  132.962157][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  132.962157][   T10]      net_rx_action+0x495/0xbe0
[  132.962157][   T10]      __do_softirq+0x1b5/0x7f6
[  132.962157][   T10] 
[  132.964034][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  132.964034][   T10]      netdev_get_by_index+0x5e/0x80
[  132.964034][   T10]      fib6_nh_init+0x3d8/0x1580
[  132.964034][   T10]      ip6_route_info_create+0xf18/0x17d0
[  132.964034][   T10]      ip6_route_add+0x1c/0x140
[  132.964034][   T10]      addrconf_prefix_route+0x2a6/0x430
[  132.964034][   T10]      inet6_addr_add+0x4f8/0xa40
[  132.964034][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  132.964034][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  132.964034][   T10]      netlink_rcv_skb+0x130/0x360
[  132.964034][   T10]      netlink_unicast+0x449/0x710
[  132.964034][   T10]      netlink_sendmsg+0x723/0xbe0
[  132.964034][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  132.964034][   T10]      ___sys_sendmsg+0xee/0x170
[  132.964034][   T10]      __sys_sendmsg+0xcd/0x170
[  132.964034][   T10]      do_syscall_64+0xc6/0x1e0
[  132.964034][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  132.964034][   T10] 
[  132.966298][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  132.966298][   T10]      netdev_get_by_index+0x5e/0x80
[  132.966298][   T10]      fib6_nh_init+0x3d8/0x1580
[  132.966298][   T10]      ip6_route_info_create+0xf18/0x17d0
[  132.966298][   T10]      addrconf_f6i_alloc+0x315/0x560
[  132.966298][   T10]      ipv6_add_addr+0x411/0x2000
[  132.966298][   T10]      inet6_addr_add+0x30e/0xa40
[  132.966298][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  132.966298][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  132.966298][   T10]      netlink_rcv_skb+0x130/0x360
[  132.966298][   T10]      netlink_unicast+0x449/0x710
[  132.966298][   T10]      netlink_sendmsg+0x723/0xbe0
[  132.966298][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  132.966298][   T10]      ___sys_sendmsg+0xee/0x170
[  132.966298][   T10]      __sys_sendmsg+0xcd/0x170
[  132.966298][   T10]      do_syscall_64+0xc6/0x1e0
[  132.966298][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  132.966298][   T10] 
[  132.968541][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  132.968541][   T10]      netdev_get_by_index+0x5e/0x80
[  132.968541][   T10]      fib6_nh_init+0x3d8/0x1580
[  132.968541][   T10]      ip6_route_info_create+0xf18/0x17d0
[  132.968541][   T10]      ip6_route_add+0x1c/0x140
[  132.968541][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  132.968541][   T10]      addrconf_add_dev+0xe2/0x170
[  132.968541][   T10]      inet6_addr_add+0x12f/0xa40
[  132.968541][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  132.968541][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  132.968541][   T10]      netlink_rcv_skb+0x130/0x360
[  132.968541][   T10]      netlink_unicast+0x449/0x710
[  132.968541][   T10]      netlink_sendmsg+0x723/0xbe0
[  132.968541][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  132.968541][   T10]      ___sys_sendmsg+0xee/0x170
[  132.968541][   T10]      __sys_sendmsg+0xcd/0x170
[  132.968541][   T10]      do_syscall_64+0xc6/0x1e0
[  132.968541][   T10] 
[  132.970755][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  132.970755][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  132.970755][   T10]      ipv6_find_idev+0x102/0x170
[  132.970755][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  132.970755][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  132.970755][   T10]      netlink_rcv_skb+0x130/0x360
[  132.970755][   T10]      netlink_unicast+0x449/0x710
[  132.970755][   T10]      netlink_sendmsg+0x723/0xbe0
[  132.970755][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  132.970755][   T10]      ___sys_sendmsg+0xee/0x170
[  132.970755][   T10]      __sys_sendmsg+0xcd/0x170
[  132.970755][   T10]      do_syscall_64+0xc6/0x1e0
[  132.970755][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  132.970755][   T10] 
[  132.972502][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  132.972502][   T10]      neigh_parms_alloc+0x1e5/0x510
[  132.972502][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  132.972502][   T10]      ipv6_find_idev+0x102/0x170
[  132.972502][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  132.972502][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  132.972502][   T10]      netlink_rcv_skb+0x130/0x360
[  132.972502][   T10]      netlink_unicast+0x449/0x710
[  132.972502][   T10]      netlink_sendmsg+0x723/0xbe0
[  132.972502][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  132.972502][   T10]      ___sys_sendmsg+0xee/0x170
[  132.972502][   T10]      __sys_sendmsg+0xcd/0x170
[  132.972502][   T10]      do_syscall_64+0xc6/0x1e0
[  132.972502][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  132.972502][   T10] 
[  132.974375][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  132.974643][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  132.974643][   T10]      dst_init+0x84/0x4a0
[  132.974643][   T10]      dst_alloc+0x97/0x150
[  132.974643][   T10]      ip6_dst_alloc+0x23/0x90
[  132.974643][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  132.974643][   T10]      ip6_pol_route+0x56f/0x840
[  132.974643][   T10]      fib6_rule_lookup+0x456/0x630
[  132.974643][   T10]      ip6_route_input+0x59c/0xa50
[  132.974643][   T10]      ipv6_rcv+0x397/0x810
[  132.974643][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  132.974643][   T10]      process_backlog+0x101/0x620
[  132.974643][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  132.974643][   T10]      net_rx_action+0x495/0xbe0
[  132.974643][   T10]      __do_softirq+0x1b5/0x7f6
[  132.974643][   T10] 
[  132.976486][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  132.976486][   T10]      netdev_get_by_index+0x5e/0x80
[  132.976486][   T10]      fib6_nh_init+0x3d8/0x1580
[  132.976486][   T10]      ip6_route_info_create+0xf18/0x17d0
[  132.976486][   T10]      ip6_route_add+0x1c/0x140
[  132.976486][   T10]      addrconf_prefix_route+0x2a6/0x430
[  132.976486][   T10]      inet6_addr_add+0x4f8/0xa40
[  132.976486][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  132.976486][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  132.976486][   T10]      netlink_rcv_skb+0x130/0x360
[  132.976486][   T10]      netlink_unicast+0x449/0x710
[  132.976486][   T10]      netlink_sendmsg+0x723/0xbe0
[  132.976486][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  132.976486][   T10]      ___sys_sendmsg+0xee/0x170
[  132.976486][   T10]      __sys_sendmsg+0xcd/0x170
[  132.976486][   T10]      do_syscall_64+0xc6/0x1e0
[  132.976486][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  132.976486][   T10] 
[  132.978739][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  132.978739][   T10]      netdev_get_by_index+0x5e/0x80
[  132.978739][   T10]      fib6_nh_init+0x3d8/0x1580
[  132.978739][   T10]      ip6_route_info_create+0xf18/0x17d0
[  132.978739][   T10]      addrconf_f6i_alloc+0x315/0x560
[  132.978739][   T10]      ipv6_add_addr+0x411/0x2000
[  132.978739][   T10]      inet6_addr_add+0x30e/0xa40
[  132.978739][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  132.978739][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  132.978739][   T10]      netlink_rcv_skb+0x130/0x360
[  132.978739][   T10]      netlink_unicast+0x449/0x710
[  132.978739][   T10]      netlink_sendmsg+0x723/0xbe0
[  132.978739][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  132.978739][   T10]      ___sys_sendmsg+0xee/0x170
[  132.978739][   T10]      __sys_sendmsg+0xcd/0x170
[  132.978739][   T10]      do_syscall_64+0xc6/0x1e0
[  132.978739][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  132.978739][   T10] 
[  132.981029][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  132.981029][   T10]      netdev_get_by_index+0x5e/0x80
[  132.981029][   T10]      fib6_nh_init+0x3d8/0x1580
[  132.981029][   T10]      ip6_route_info_create+0xf18/0x17d0
[  132.981029][   T10]      ip6_route_add+0x1c/0x140
[  132.981029][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  132.981029][   T10]      addrconf_add_dev+0xe2/0x170
[  132.981029][   T10]      inet6_addr_add+0x12f/0xa40
[  132.981029][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  132.981029][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  132.981029][   T10]      netlink_rcv_skb+0x130/0x360
[  132.981029][   T10]      netlink_unicast+0x449/0x710
[  132.981029][   T10]      netlink_sendmsg+0x723/0xbe0
[  132.981029][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  132.981029][   T10]      ___sys_sendmsg+0xee/0x170
[  132.981029][   T10]      __sys_sendmsg+0xcd/0x170
[  132.981029][   T10]      do_syscall_64+0xc6/0x1e0
[  132.981029][   T10] 
[  132.983258][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  132.983258][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  132.983258][   T10]      ipv6_find_idev+0x102/0x170
[  132.983258][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  132.983258][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  132.983258][   T10]      netlink_rcv_skb+0x130/0x360
[  132.983258][   T10]      netlink_unicast+0x449/0x710
[  132.983258][   T10]      netlink_sendmsg+0x723/0xbe0
[  132.983258][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  132.983258][   T10]      ___sys_sendmsg+0xee/0x170
[  132.983258][   T10]      __sys_sendmsg+0xcd/0x170
[  132.983258][   T10]      do_syscall_64+0xc6/0x1e0
[  132.983258][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  132.983258][   T10] 
[  132.984988][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  132.984988][   T10]      neigh_parms_alloc+0x1e5/0x510
[  132.984988][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  132.984988][   T10]      ipv6_find_idev+0x102/0x170
[  132.984988][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  132.984988][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  132.984988][   T10]      netlink_rcv_skb+0x130/0x360
[  132.984988][   T10]      netlink_unicast+0x449/0x710
[  132.984988][   T10]      netlink_sendmsg+0x723/0xbe0
[  132.984988][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  132.984988][   T10]      ___sys_sendmsg+0xee/0x170
[  132.984988][   T10]      __sys_sendmsg+0xcd/0x170
[  132.984988][   T10]      do_syscall_64+0xc6/0x1e0
[  132.984988][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  132.984988][   T10] 
[  143.225797][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  143.226502][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  143.226502][   T10]      dst_init+0x84/0x4a0
[  143.226502][   T10]      dst_alloc+0x97/0x150
[  143.226502][   T10]      ip6_dst_alloc+0x23/0x90
[  143.226502][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  143.226502][   T10]      ip6_pol_route+0x56f/0x840
[  143.226502][   T10]      fib6_rule_lookup+0x456/0x630
[  143.226502][   T10]      ip6_route_input+0x59c/0xa50
[  143.226502][   T10]      ipv6_rcv+0x397/0x810
[  143.226502][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  143.226502][   T10]      process_backlog+0x101/0x620
[  143.226502][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  143.226502][   T10]      net_rx_action+0x495/0xbe0
[  143.226502][   T10]      __do_softirq+0x1b5/0x7f6
[  143.226502][   T10] 
[  143.228392][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  143.228392][   T10]      netdev_get_by_index+0x5e/0x80
[  143.228392][   T10]      fib6_nh_init+0x3d8/0x1580
[  143.228392][   T10]      ip6_route_info_create+0xf18/0x17d0
[  143.228392][   T10]      ip6_route_add+0x1c/0x140
[  143.228392][   T10]      addrconf_prefix_route+0x2a6/0x430
[  143.228392][   T10]      inet6_addr_add+0x4f8/0xa40
[  143.228392][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  143.228392][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  143.228392][   T10]      netlink_rcv_skb+0x130/0x360
[  143.228392][   T10]      netlink_unicast+0x449/0x710
[  143.228392][   T10]      netlink_sendmsg+0x723/0xbe0
[  143.228392][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  143.228392][   T10]      ___sys_sendmsg+0xee/0x170
[  143.228392][   T10]      __sys_sendmsg+0xcd/0x170
[  143.228392][   T10]      do_syscall_64+0xc6/0x1e0
[  143.228392][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  143.228392][   T10] 
[  143.230669][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  143.230669][   T10]      netdev_get_by_index+0x5e/0x80
[  143.230669][   T10]      fib6_nh_init+0x3d8/0x1580
[  143.230669][   T10]      ip6_route_info_create+0xf18/0x17d0
[  143.230669][   T10]      addrconf_f6i_alloc+0x315/0x560
[  143.230669][   T10]      ipv6_add_addr+0x411/0x2000
[  143.230669][   T10]      inet6_addr_add+0x30e/0xa40
[  143.230669][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  143.230669][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  143.230669][   T10]      netlink_rcv_skb+0x130/0x360
[  143.230669][   T10]      netlink_unicast+0x449/0x710
[  143.230669][   T10]      netlink_sendmsg+0x723/0xbe0
[  143.230669][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  143.230669][   T10]      ___sys_sendmsg+0xee/0x170
[  143.230669][   T10]      __sys_sendmsg+0xcd/0x170
[  143.230669][   T10]      do_syscall_64+0xc6/0x1e0
[  143.230669][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  143.230669][   T10] 
[  143.232911][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  143.232911][   T10]      netdev_get_by_index+0x5e/0x80
[  143.232911][   T10]      fib6_nh_init+0x3d8/0x1580
[  143.232911][   T10]      ip6_route_info_create+0xf18/0x17d0
[  143.232911][   T10]      ip6_route_add+0x1c/0x140
[  143.232911][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  143.232911][   T10]      addrconf_add_dev+0xe2/0x170
[  143.232911][   T10]      inet6_addr_add+0x12f/0xa40
[  143.232911][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  143.232911][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  143.232911][   T10]      netlink_rcv_skb+0x130/0x360
[  143.232911][   T10]      netlink_unicast+0x449/0x710
[  143.232911][   T10]      netlink_sendmsg+0x723/0xbe0
[  143.232911][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  143.232911][   T10]      ___sys_sendmsg+0xee/0x170
[  143.232911][   T10]      __sys_sendmsg+0xcd/0x170
[  143.232911][   T10]      do_syscall_64+0xc6/0x1e0
[  143.232911][   T10] 
[  143.235131][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  143.235131][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  143.235131][   T10]      ipv6_find_idev+0x102/0x170
[  143.235131][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  143.235131][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  143.235131][   T10]      netlink_rcv_skb+0x130/0x360
[  143.235131][   T10]      netlink_unicast+0x449/0x710
[  143.235131][   T10]      netlink_sendmsg+0x723/0xbe0
[  143.235131][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  143.235131][   T10]      ___sys_sendmsg+0xee/0x170
[  143.235131][   T10]      __sys_sendmsg+0xcd/0x170
[  143.235131][   T10]      do_syscall_64+0xc6/0x1e0
[  143.235131][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  143.235131][   T10] 
[  143.236881][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  143.236881][   T10]      neigh_parms_alloc+0x1e5/0x510
[  143.236881][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  143.236881][   T10]      ipv6_find_idev+0x102/0x170
[  143.236881][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  143.236881][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  143.236881][   T10]      netlink_rcv_skb+0x130/0x360
[  143.236881][   T10]      netlink_unicast+0x449/0x710
[  143.236881][   T10]      netlink_sendmsg+0x723/0xbe0
[  143.236881][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  143.236881][   T10]      ___sys_sendmsg+0xee/0x170
[  143.236881][   T10]      __sys_sendmsg+0xcd/0x170
[  143.236881][   T10]      do_syscall_64+0xc6/0x1e0
[  143.236881][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  143.236881][   T10] 
[  143.238816][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  143.239077][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  143.239077][   T10]      dst_init+0x84/0x4a0
[  143.239077][   T10]      dst_alloc+0x97/0x150
[  143.239077][   T10]      ip6_dst_alloc+0x23/0x90
[  143.239077][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  143.239077][   T10]      ip6_pol_route+0x56f/0x840
[  143.239077][   T10]      fib6_rule_lookup+0x456/0x630
[  143.239077][   T10]      ip6_route_input+0x59c/0xa50
[  143.239077][   T10]      ipv6_rcv+0x397/0x810
[  143.239077][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  143.239077][   T10]      process_backlog+0x101/0x620
[  143.239077][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  143.239077][   T10]      net_rx_action+0x495/0xbe0
[  143.239077][   T10]      __do_softirq+0x1b5/0x7f6
[  143.239077][   T10] 
[  143.240907][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  143.240907][   T10]      netdev_get_by_index+0x5e/0x80
[  143.240907][   T10]      fib6_nh_init+0x3d8/0x1580
[  143.240907][   T10]      ip6_route_info_create+0xf18/0x17d0
[  143.240907][   T10]      ip6_route_add+0x1c/0x140
[  143.240907][   T10]      addrconf_prefix_route+0x2a6/0x430
[  143.240907][   T10]      inet6_addr_add+0x4f8/0xa40
[  143.240907][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  143.240907][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  143.240907][   T10]      netlink_rcv_skb+0x130/0x360
[  143.240907][   T10]      netlink_unicast+0x449/0x710
[  143.240907][   T10]      netlink_sendmsg+0x723/0xbe0
[  143.240907][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  143.240907][   T10]      ___sys_sendmsg+0xee/0x170
[  143.240907][   T10]      __sys_sendmsg+0xcd/0x170
[  143.240907][   T10]      do_syscall_64+0xc6/0x1e0
[  143.240907][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  143.240907][   T10] 
[  143.243187][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  143.243187][   T10]      netdev_get_by_index+0x5e/0x80
[  143.243187][   T10]      fib6_nh_init+0x3d8/0x1580
[  143.243187][   T10]      ip6_route_info_create+0xf18/0x17d0
[  143.243187][   T10]      addrconf_f6i_alloc+0x315/0x560
[  143.243187][   T10]      ipv6_add_addr+0x411/0x2000
[  143.243187][   T10]      inet6_addr_add+0x30e/0xa40
[  143.243187][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  143.243187][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  143.243187][   T10]      netlink_rcv_skb+0x130/0x360
[  143.243187][   T10]      netlink_unicast+0x449/0x710
[  143.243187][   T10]      netlink_sendmsg+0x723/0xbe0
[  143.243187][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  143.243187][   T10]      ___sys_sendmsg+0xee/0x170
[  143.243187][   T10]      __sys_sendmsg+0xcd/0x170
[  143.243187][   T10]      do_syscall_64+0xc6/0x1e0
[  143.243187][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  143.243187][   T10] 
[  143.245448][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  143.245448][   T10]      netdev_get_by_index+0x5e/0x80
[  143.245448][   T10]      fib6_nh_init+0x3d8/0x1580
[  143.245448][   T10]      ip6_route_info_create+0xf18/0x17d0
[  143.245448][   T10]      ip6_route_add+0x1c/0x140
[  143.245448][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  143.245448][   T10]      addrconf_add_dev+0xe2/0x170
[  143.245448][   T10]      inet6_addr_add+0x12f/0xa40
[  143.245448][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  143.245448][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  143.245448][   T10]      netlink_rcv_skb+0x130/0x360
[  143.245448][   T10]      netlink_unicast+0x449/0x710
[  143.245448][   T10]      netlink_sendmsg+0x723/0xbe0
[  143.245448][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  143.245448][   T10]      ___sys_sendmsg+0xee/0x170
[  143.245448][   T10]      __sys_sendmsg+0xcd/0x170
[  143.245448][   T10]      do_syscall_64+0xc6/0x1e0
[  143.245448][   T10] 
[  143.247666][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  143.247666][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  143.247666][   T10]      ipv6_find_idev+0x102/0x170
[  143.247666][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  143.247666][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  143.247666][   T10]      netlink_rcv_skb+0x130/0x360
[  143.247666][   T10]      netlink_unicast+0x449/0x710
[  143.247666][   T10]      netlink_sendmsg+0x723/0xbe0
[  143.247666][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  143.247666][   T10]      ___sys_sendmsg+0xee/0x170
[  143.247666][   T10]      __sys_sendmsg+0xcd/0x170
[  143.247666][   T10]      do_syscall_64+0xc6/0x1e0
[  143.247666][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  143.247666][   T10] 
[  143.249403][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  143.249403][   T10]      neigh_parms_alloc+0x1e5/0x510
[  143.249403][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  143.249403][   T10]      ipv6_find_idev+0x102/0x170
[  143.249403][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  143.249403][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  143.249403][   T10]      netlink_rcv_skb+0x130/0x360
[  143.249403][   T10]      netlink_unicast+0x449/0x710
[  143.249403][   T10]      netlink_sendmsg+0x723/0xbe0
[  143.249403][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  143.249403][   T10]      ___sys_sendmsg+0xee/0x170
[  143.249403][   T10]      __sys_sendmsg+0xcd/0x170
[  143.249403][   T10]      do_syscall_64+0xc6/0x1e0
[  143.249403][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  143.249403][   T10] 
[  153.489871][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  153.490548][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  153.490548][   T10]      dst_init+0x84/0x4a0
[  153.490548][   T10]      dst_alloc+0x97/0x150
[  153.490548][   T10]      ip6_dst_alloc+0x23/0x90
[  153.490548][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  153.490548][   T10]      ip6_pol_route+0x56f/0x840
[  153.490548][   T10]      fib6_rule_lookup+0x456/0x630
[  153.490548][   T10]      ip6_route_input+0x59c/0xa50
[  153.490548][   T10]      ipv6_rcv+0x397/0x810
[  153.490548][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  153.490548][   T10]      process_backlog+0x101/0x620
[  153.490548][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  153.490548][   T10]      net_rx_action+0x495/0xbe0
[  153.490548][   T10]      __do_softirq+0x1b5/0x7f6
[  153.490548][   T10] 
[  153.492481][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  153.492481][   T10]      netdev_get_by_index+0x5e/0x80
[  153.492481][   T10]      fib6_nh_init+0x3d8/0x1580
[  153.492481][   T10]      ip6_route_info_create+0xf18/0x17d0
[  153.492481][   T10]      ip6_route_add+0x1c/0x140
[  153.492481][   T10]      addrconf_prefix_route+0x2a6/0x430
[  153.492481][   T10]      inet6_addr_add+0x4f8/0xa40
[  153.492481][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  153.492481][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  153.492481][   T10]      netlink_rcv_skb+0x130/0x360
[  153.492481][   T10]      netlink_unicast+0x449/0x710
[  153.492481][   T10]      netlink_sendmsg+0x723/0xbe0
[  153.492481][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  153.492481][   T10]      ___sys_sendmsg+0xee/0x170
[  153.492481][   T10]      __sys_sendmsg+0xcd/0x170
[  153.492481][   T10]      do_syscall_64+0xc6/0x1e0
[  153.492481][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  153.492481][   T10] 
[  153.494817][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  153.494817][   T10]      netdev_get_by_index+0x5e/0x80
[  153.494817][   T10]      fib6_nh_init+0x3d8/0x1580
[  153.494817][   T10]      ip6_route_info_create+0xf18/0x17d0
[  153.494817][   T10]      addrconf_f6i_alloc+0x315/0x560
[  153.494817][   T10]      ipv6_add_addr+0x411/0x2000
[  153.494817][   T10]      inet6_addr_add+0x30e/0xa40
[  153.494817][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  153.494817][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  153.494817][   T10]      netlink_rcv_skb+0x130/0x360
[  153.494817][   T10]      netlink_unicast+0x449/0x710
[  153.494817][   T10]      netlink_sendmsg+0x723/0xbe0
[  153.494817][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  153.494817][   T10]      ___sys_sendmsg+0xee/0x170
[  153.494817][   T10]      __sys_sendmsg+0xcd/0x170
[  153.494817][   T10]      do_syscall_64+0xc6/0x1e0
[  153.494817][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  153.494817][   T10] 
[  153.497082][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  153.497082][   T10]      netdev_get_by_index+0x5e/0x80
[  153.497082][   T10]      fib6_nh_init+0x3d8/0x1580
[  153.497082][   T10]      ip6_route_info_create+0xf18/0x17d0
[  153.497082][   T10]      ip6_route_add+0x1c/0x140
[  153.497082][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  153.497082][   T10]      addrconf_add_dev+0xe2/0x170
[  153.497082][   T10]      inet6_addr_add+0x12f/0xa40
[  153.497082][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  153.497082][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  153.497082][   T10]      netlink_rcv_skb+0x130/0x360
[  153.497082][   T10]      netlink_unicast+0x449/0x710
[  153.497082][   T10]      netlink_sendmsg+0x723/0xbe0
[  153.497082][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  153.497082][   T10]      ___sys_sendmsg+0xee/0x170
[  153.497082][   T10]      __sys_sendmsg+0xcd/0x170
[  153.497082][   T10]      do_syscall_64+0xc6/0x1e0
[  153.497082][   T10] 
[  153.499294][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  153.499294][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  153.499294][   T10]      ipv6_find_idev+0x102/0x170
[  153.499294][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  153.499294][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  153.499294][   T10]      netlink_rcv_skb+0x130/0x360
[  153.499294][   T10]      netlink_unicast+0x449/0x710
[  153.499294][   T10]      netlink_sendmsg+0x723/0xbe0
[  153.499294][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  153.499294][   T10]      ___sys_sendmsg+0xee/0x170
[  153.499294][   T10]      __sys_sendmsg+0xcd/0x170
[  153.499294][   T10]      do_syscall_64+0xc6/0x1e0
[  153.499294][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  153.499294][   T10] 
[  153.501040][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  153.501040][   T10]      neigh_parms_alloc+0x1e5/0x510
[  153.501040][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  153.501040][   T10]      ipv6_find_idev+0x102/0x170
[  153.501040][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  153.501040][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  153.501040][   T10]      netlink_rcv_skb+0x130/0x360
[  153.501040][   T10]      netlink_unicast+0x449/0x710
[  153.501040][   T10]      netlink_sendmsg+0x723/0xbe0
[  153.501040][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  153.501040][   T10]      ___sys_sendmsg+0xee/0x170
[  153.501040][   T10]      __sys_sendmsg+0xcd/0x170
[  153.501040][   T10]      do_syscall_64+0xc6/0x1e0
[  153.501040][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  153.501040][   T10] 
[  153.503041][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  153.503307][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  153.503307][   T10]      dst_init+0x84/0x4a0
[  153.503307][   T10]      dst_alloc+0x97/0x150
[  153.503307][   T10]      ip6_dst_alloc+0x23/0x90
[  153.503307][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  153.503307][   T10]      ip6_pol_route+0x56f/0x840
[  153.503307][   T10]      fib6_rule_lookup+0x456/0x630
[  153.503307][   T10]      ip6_route_input+0x59c/0xa50
[  153.503307][   T10]      ipv6_rcv+0x397/0x810
[  153.503307][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  153.503307][   T10]      process_backlog+0x101/0x620
[  153.503307][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  153.503307][   T10]      net_rx_action+0x495/0xbe0
[  153.503307][   T10]      __do_softirq+0x1b5/0x7f6
[  153.503307][   T10] 
[  153.505147][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  153.505147][   T10]      netdev_get_by_index+0x5e/0x80
[  153.505147][   T10]      fib6_nh_init+0x3d8/0x1580
[  153.505147][   T10]      ip6_route_info_create+0xf18/0x17d0
[  153.505147][   T10]      ip6_route_add+0x1c/0x140
[  153.505147][   T10]      addrconf_prefix_route+0x2a6/0x430
[  153.505147][   T10]      inet6_addr_add+0x4f8/0xa40
[  153.505147][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  153.505147][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  153.505147][   T10]      netlink_rcv_skb+0x130/0x360
[  153.505147][   T10]      netlink_unicast+0x449/0x710
[  153.505147][   T10]      netlink_sendmsg+0x723/0xbe0
[  153.505147][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  153.505147][   T10]      ___sys_sendmsg+0xee/0x170
[  153.505147][   T10]      __sys_sendmsg+0xcd/0x170
[  153.505147][   T10]      do_syscall_64+0xc6/0x1e0
[  153.505147][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  153.505147][   T10] 
[  153.507392][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  153.507392][   T10]      netdev_get_by_index+0x5e/0x80
[  153.507392][   T10]      fib6_nh_init+0x3d8/0x1580
[  153.507392][   T10]      ip6_route_info_create+0xf18/0x17d0
[  153.507392][   T10]      addrconf_f6i_alloc+0x315/0x560
[  153.507392][   T10]      ipv6_add_addr+0x411/0x2000
[  153.507392][   T10]      inet6_addr_add+0x30e/0xa40
[  153.507392][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  153.507392][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  153.507392][   T10]      netlink_rcv_skb+0x130/0x360
[  153.507392][   T10]      netlink_unicast+0x449/0x710
[  153.507392][   T10]      netlink_sendmsg+0x723/0xbe0
[  153.507392][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  153.507392][   T10]      ___sys_sendmsg+0xee/0x170
[  153.507392][   T10]      __sys_sendmsg+0xcd/0x170
[  153.507392][   T10]      do_syscall_64+0xc6/0x1e0
[  153.507392][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  153.507392][   T10] 
[  153.509661][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  153.509661][   T10]      netdev_get_by_index+0x5e/0x80
[  153.509661][   T10]      fib6_nh_init+0x3d8/0x1580
[  153.509661][   T10]      ip6_route_info_create+0xf18/0x17d0
[  153.509661][   T10]      ip6_route_add+0x1c/0x140
[  153.509661][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  153.509661][   T10]      addrconf_add_dev+0xe2/0x170
[  153.509661][   T10]      inet6_addr_add+0x12f/0xa40
[  153.509661][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  153.509661][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  153.509661][   T10]      netlink_rcv_skb+0x130/0x360
[  153.509661][   T10]      netlink_unicast+0x449/0x710
[  153.509661][   T10]      netlink_sendmsg+0x723/0xbe0
[  153.509661][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  153.509661][   T10]      ___sys_sendmsg+0xee/0x170
[  153.509661][   T10]      __sys_sendmsg+0xcd/0x170
[  153.509661][   T10]      do_syscall_64+0xc6/0x1e0
[  153.509661][   T10] 
[  153.511880][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  153.511880][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  153.511880][   T10]      ipv6_find_idev+0x102/0x170
[  153.511880][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  153.511880][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  153.511880][   T10]      netlink_rcv_skb+0x130/0x360
[  153.511880][   T10]      netlink_unicast+0x449/0x710
[  153.511880][   T10]      netlink_sendmsg+0x723/0xbe0
[  153.511880][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  153.511880][   T10]      ___sys_sendmsg+0xee/0x170
[  153.511880][   T10]      __sys_sendmsg+0xcd/0x170
[  153.511880][   T10]      do_syscall_64+0xc6/0x1e0
[  153.511880][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  153.511880][   T10] 
[  153.513617][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  153.513617][   T10]      neigh_parms_alloc+0x1e5/0x510
[  153.513617][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  153.513617][   T10]      ipv6_find_idev+0x102/0x170
[  153.513617][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  153.513617][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  153.513617][   T10]      netlink_rcv_skb+0x130/0x360
[  153.513617][   T10]      netlink_unicast+0x449/0x710
[  153.513617][   T10]      netlink_sendmsg+0x723/0xbe0
[  153.513617][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  153.513617][   T10]      ___sys_sendmsg+0xee/0x170
[  153.513617][   T10]      __sys_sendmsg+0xcd/0x170
[  153.513617][   T10]      do_syscall_64+0xc6/0x1e0
[  153.513617][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  153.513617][   T10] 
[  163.753774][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  163.754217][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  163.754217][   T10]      dst_init+0x84/0x4a0
[  163.754217][   T10]      dst_alloc+0x97/0x150
[  163.754217][   T10]      ip6_dst_alloc+0x23/0x90
[  163.754217][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  163.754217][   T10]      ip6_pol_route+0x56f/0x840
[  163.754217][   T10]      fib6_rule_lookup+0x456/0x630
[  163.754217][   T10]      ip6_route_input+0x59c/0xa50
[  163.754217][   T10]      ipv6_rcv+0x397/0x810
[  163.754217][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  163.754217][   T10]      process_backlog+0x101/0x620
[  163.754217][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  163.754217][   T10]      net_rx_action+0x495/0xbe0
[  163.754217][   T10]      __do_softirq+0x1b5/0x7f6
[  163.754217][   T10] 
[  163.756108][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  163.756108][   T10]      netdev_get_by_index+0x5e/0x80
[  163.756108][   T10]      fib6_nh_init+0x3d8/0x1580
[  163.756108][   T10]      ip6_route_info_create+0xf18/0x17d0
[  163.756108][   T10]      ip6_route_add+0x1c/0x140
[  163.756108][   T10]      addrconf_prefix_route+0x2a6/0x430
[  163.756108][   T10]      inet6_addr_add+0x4f8/0xa40
[  163.756108][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  163.756108][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  163.756108][   T10]      netlink_rcv_skb+0x130/0x360
[  163.756108][   T10]      netlink_unicast+0x449/0x710
[  163.756108][   T10]      netlink_sendmsg+0x723/0xbe0
[  163.756108][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  163.756108][   T10]      ___sys_sendmsg+0xee/0x170
[  163.756108][   T10]      __sys_sendmsg+0xcd/0x170
[  163.756108][   T10]      do_syscall_64+0xc6/0x1e0
[  163.756108][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  163.756108][   T10] 
[  163.758377][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  163.758377][   T10]      netdev_get_by_index+0x5e/0x80
[  163.758377][   T10]      fib6_nh_init+0x3d8/0x1580
[  163.758377][   T10]      ip6_route_info_create+0xf18/0x17d0
[  163.758377][   T10]      addrconf_f6i_alloc+0x315/0x560
[  163.758377][   T10]      ipv6_add_addr+0x411/0x2000
[  163.758377][   T10]      inet6_addr_add+0x30e/0xa40
[  163.758377][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  163.758377][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  163.758377][   T10]      netlink_rcv_skb+0x130/0x360
[  163.758377][   T10]      netlink_unicast+0x449/0x710
[  163.758377][   T10]      netlink_sendmsg+0x723/0xbe0
[  163.758377][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  163.758377][   T10]      ___sys_sendmsg+0xee/0x170
[  163.758377][   T10]      __sys_sendmsg+0xcd/0x170
[  163.758377][   T10]      do_syscall_64+0xc6/0x1e0
[  163.758377][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  163.758377][   T10] 
[  163.760627][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  163.760627][   T10]      netdev_get_by_index+0x5e/0x80
[  163.760627][   T10]      fib6_nh_init+0x3d8/0x1580
[  163.760627][   T10]      ip6_route_info_create+0xf18/0x17d0
[  163.760627][   T10]      ip6_route_add+0x1c/0x140
[  163.760627][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  163.760627][   T10]      addrconf_add_dev+0xe2/0x170
[  163.760627][   T10]      inet6_addr_add+0x12f/0xa40
[  163.760627][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  163.760627][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  163.760627][   T10]      netlink_rcv_skb+0x130/0x360
[  163.760627][   T10]      netlink_unicast+0x449/0x710
[  163.760627][   T10]      netlink_sendmsg+0x723/0xbe0
[  163.760627][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  163.760627][   T10]      ___sys_sendmsg+0xee/0x170
[  163.760627][   T10]      __sys_sendmsg+0xcd/0x170
[  163.760627][   T10]      do_syscall_64+0xc6/0x1e0
[  163.760627][   T10] 
[  163.762848][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  163.762848][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  163.762848][   T10]      ipv6_find_idev+0x102/0x170
[  163.762848][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  163.762848][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  163.762848][   T10]      netlink_rcv_skb+0x130/0x360
[  163.762848][   T10]      netlink_unicast+0x449/0x710
[  163.762848][   T10]      netlink_sendmsg+0x723/0xbe0
[  163.762848][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  163.762848][   T10]      ___sys_sendmsg+0xee/0x170
[  163.762848][   T10]      __sys_sendmsg+0xcd/0x170
[  163.762848][   T10]      do_syscall_64+0xc6/0x1e0
[  163.762848][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  163.762848][   T10] 
[  163.764602][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  163.764602][   T10]      neigh_parms_alloc+0x1e5/0x510
[  163.764602][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  163.764602][   T10]      ipv6_find_idev+0x102/0x170
[  163.764602][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  163.764602][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  163.764602][   T10]      netlink_rcv_skb+0x130/0x360
[  163.764602][   T10]      netlink_unicast+0x449/0x710
[  163.764602][   T10]      netlink_sendmsg+0x723/0xbe0
[  163.764602][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  163.764602][   T10]      ___sys_sendmsg+0xee/0x170
[  163.764602][   T10]      __sys_sendmsg+0xcd/0x170
[  163.764602][   T10]      do_syscall_64+0xc6/0x1e0
[  163.764602][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  163.764602][   T10] 
[  163.766503][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  163.766780][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  163.766780][   T10]      dst_init+0x84/0x4a0
[  163.766780][   T10]      dst_alloc+0x97/0x150
[  163.766780][   T10]      ip6_dst_alloc+0x23/0x90
[  163.766780][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  163.766780][   T10]      ip6_pol_route+0x56f/0x840
[  163.766780][   T10]      fib6_rule_lookup+0x456/0x630
[  163.766780][   T10]      ip6_route_input+0x59c/0xa50
[  163.766780][   T10]      ipv6_rcv+0x397/0x810
[  163.766780][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  163.766780][   T10]      process_backlog+0x101/0x620
[  163.766780][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  163.766780][   T10]      net_rx_action+0x495/0xbe0
[  163.766780][   T10]      __do_softirq+0x1b5/0x7f6
[  163.766780][   T10] 
[  163.768631][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  163.768631][   T10]      netdev_get_by_index+0x5e/0x80
[  163.768631][   T10]      fib6_nh_init+0x3d8/0x1580
[  163.768631][   T10]      ip6_route_info_create+0xf18/0x17d0
[  163.768631][   T10]      ip6_route_add+0x1c/0x140
[  163.768631][   T10]      addrconf_prefix_route+0x2a6/0x430
[  163.768631][   T10]      inet6_addr_add+0x4f8/0xa40
[  163.768631][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  163.768631][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  163.768631][   T10]      netlink_rcv_skb+0x130/0x360
[  163.768631][   T10]      netlink_unicast+0x449/0x710
[  163.768631][   T10]      netlink_sendmsg+0x723/0xbe0
[  163.768631][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  163.768631][   T10]      ___sys_sendmsg+0xee/0x170
[  163.768631][   T10]      __sys_sendmsg+0xcd/0x170
[  163.768631][   T10]      do_syscall_64+0xc6/0x1e0
[  163.768631][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  163.768631][   T10] 
[  163.770878][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  163.770878][   T10]      netdev_get_by_index+0x5e/0x80
[  163.770878][   T10]      fib6_nh_init+0x3d8/0x1580
[  163.770878][   T10]      ip6_route_info_create+0xf18/0x17d0
[  163.770878][   T10]      addrconf_f6i_alloc+0x315/0x560
[  163.770878][   T10]      ipv6_add_addr+0x411/0x2000
[  163.770878][   T10]      inet6_addr_add+0x30e/0xa40
[  163.770878][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  163.770878][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  163.770878][   T10]      netlink_rcv_skb+0x130/0x360
[  163.770878][   T10]      netlink_unicast+0x449/0x710
[  163.770878][   T10]      netlink_sendmsg+0x723/0xbe0
[  163.770878][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  163.770878][   T10]      ___sys_sendmsg+0xee/0x170
[  163.770878][   T10]      __sys_sendmsg+0xcd/0x170
[  163.770878][   T10]      do_syscall_64+0xc6/0x1e0
[  163.770878][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  163.770878][   T10] 
[  163.773187][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  163.773187][   T10]      netdev_get_by_index+0x5e/0x80
[  163.773187][   T10]      fib6_nh_init+0x3d8/0x1580
[  163.773187][   T10]      ip6_route_info_create+0xf18/0x17d0
[  163.773187][   T10]      ip6_route_add+0x1c/0x140
[  163.773187][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  163.773187][   T10]      addrconf_add_dev+0xe2/0x170
[  163.773187][   T10]      inet6_addr_add+0x12f/0xa40
[  163.773187][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  163.773187][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  163.773187][   T10]      netlink_rcv_skb+0x130/0x360
[  163.773187][   T10]      netlink_unicast+0x449/0x710
[  163.773187][   T10]      netlink_sendmsg+0x723/0xbe0
[  163.773187][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  163.773187][   T10]      ___sys_sendmsg+0xee/0x170
[  163.773187][   T10]      __sys_sendmsg+0xcd/0x170
[  163.773187][   T10]      do_syscall_64+0xc6/0x1e0
[  163.773187][   T10] 
[  163.775389][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  163.775389][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  163.775389][   T10]      ipv6_find_idev+0x102/0x170
[  163.775389][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  163.775389][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  163.775389][   T10]      netlink_rcv_skb+0x130/0x360
[  163.775389][   T10]      netlink_unicast+0x449/0x710
[  163.775389][   T10]      netlink_sendmsg+0x723/0xbe0
[  163.775389][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  163.775389][   T10]      ___sys_sendmsg+0xee/0x170
[  163.775389][   T10]      __sys_sendmsg+0xcd/0x170
[  163.775389][   T10]      do_syscall_64+0xc6/0x1e0
[  163.775389][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  163.775389][   T10] 
[  163.777127][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  163.777127][   T10]      neigh_parms_alloc+0x1e5/0x510
[  163.777127][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  163.777127][   T10]      ipv6_find_idev+0x102/0x170
[  163.777127][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  163.777127][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  163.777127][   T10]      netlink_rcv_skb+0x130/0x360
[  163.777127][   T10]      netlink_unicast+0x449/0x710
[  163.777127][   T10]      netlink_sendmsg+0x723/0xbe0
[  163.777127][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  163.777127][   T10]      ___sys_sendmsg+0xee/0x170
[  163.777127][   T10]      __sys_sendmsg+0xcd/0x170
[  163.777127][   T10]      do_syscall_64+0xc6/0x1e0
[  163.777127][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  163.777127][   T10] 
[  174.017844][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  174.018596][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  174.018596][   T10]      dst_init+0x84/0x4a0
[  174.018596][   T10]      dst_alloc+0x97/0x150
[  174.018596][   T10]      ip6_dst_alloc+0x23/0x90
[  174.018596][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  174.018596][   T10]      ip6_pol_route+0x56f/0x840
[  174.018596][   T10]      fib6_rule_lookup+0x456/0x630
[  174.018596][   T10]      ip6_route_input+0x59c/0xa50
[  174.018596][   T10]      ipv6_rcv+0x397/0x810
[  174.018596][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  174.018596][   T10]      process_backlog+0x101/0x620
[  174.018596][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  174.018596][   T10]      net_rx_action+0x495/0xbe0
[  174.018596][   T10]      __do_softirq+0x1b5/0x7f6
[  174.018596][   T10] 
[  174.020581][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  174.020581][   T10]      netdev_get_by_index+0x5e/0x80
[  174.020581][   T10]      fib6_nh_init+0x3d8/0x1580
[  174.020581][   T10]      ip6_route_info_create+0xf18/0x17d0
[  174.020581][   T10]      ip6_route_add+0x1c/0x140
[  174.020581][   T10]      addrconf_prefix_route+0x2a6/0x430
[  174.020581][   T10]      inet6_addr_add+0x4f8/0xa40
[  174.020581][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  174.020581][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  174.020581][   T10]      netlink_rcv_skb+0x130/0x360
[  174.020581][   T10]      netlink_unicast+0x449/0x710
[  174.020581][   T10]      netlink_sendmsg+0x723/0xbe0
[  174.020581][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  174.020581][   T10]      ___sys_sendmsg+0xee/0x170
[  174.020581][   T10]      __sys_sendmsg+0xcd/0x170
[  174.020581][   T10]      do_syscall_64+0xc6/0x1e0
[  174.020581][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  174.020581][   T10] 
[  174.022921][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  174.022921][   T10]      netdev_get_by_index+0x5e/0x80
[  174.022921][   T10]      fib6_nh_init+0x3d8/0x1580
[  174.022921][   T10]      ip6_route_info_create+0xf18/0x17d0
[  174.022921][   T10]      addrconf_f6i_alloc+0x315/0x560
[  174.022921][   T10]      ipv6_add_addr+0x411/0x2000
[  174.022921][   T10]      inet6_addr_add+0x30e/0xa40
[  174.022921][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  174.022921][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  174.022921][   T10]      netlink_rcv_skb+0x130/0x360
[  174.022921][   T10]      netlink_unicast+0x449/0x710
[  174.022921][   T10]      netlink_sendmsg+0x723/0xbe0
[  174.022921][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  174.022921][   T10]      ___sys_sendmsg+0xee/0x170
[  174.022921][   T10]      __sys_sendmsg+0xcd/0x170
[  174.022921][   T10]      do_syscall_64+0xc6/0x1e0
[  174.022921][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  174.022921][   T10] 
[  174.025235][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  174.025235][   T10]      netdev_get_by_index+0x5e/0x80
[  174.025235][   T10]      fib6_nh_init+0x3d8/0x1580
[  174.025235][   T10]      ip6_route_info_create+0xf18/0x17d0
[  174.025235][   T10]      ip6_route_add+0x1c/0x140
[  174.025235][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  174.025235][   T10]      addrconf_add_dev+0xe2/0x170
[  174.025235][   T10]      inet6_addr_add+0x12f/0xa40
[  174.025235][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  174.025235][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  174.025235][   T10]      netlink_rcv_skb+0x130/0x360
[  174.025235][   T10]      netlink_unicast+0x449/0x710
[  174.025235][   T10]      netlink_sendmsg+0x723/0xbe0
[  174.025235][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  174.025235][   T10]      ___sys_sendmsg+0xee/0x170
[  174.025235][   T10]      __sys_sendmsg+0xcd/0x170
[  174.025235][   T10]      do_syscall_64+0xc6/0x1e0
[  174.025235][   T10] 
[  174.027499][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  174.027499][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  174.027499][   T10]      ipv6_find_idev+0x102/0x170
[  174.027499][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  174.027499][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  174.027499][   T10]      netlink_rcv_skb+0x130/0x360
[  174.027499][   T10]      netlink_unicast+0x449/0x710
[  174.027499][   T10]      netlink_sendmsg+0x723/0xbe0
[  174.027499][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  174.027499][   T10]      ___sys_sendmsg+0xee/0x170
[  174.027499][   T10]      __sys_sendmsg+0xcd/0x170
[  174.027499][   T10]      do_syscall_64+0xc6/0x1e0
[  174.027499][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  174.027499][   T10] 
[  174.029291][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  174.029291][   T10]      neigh_parms_alloc+0x1e5/0x510
[  174.029291][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  174.029291][   T10]      ipv6_find_idev+0x102/0x170
[  174.029291][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  174.029291][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  174.029291][   T10]      netlink_rcv_skb+0x130/0x360
[  174.029291][   T10]      netlink_unicast+0x449/0x710
[  174.029291][   T10]      netlink_sendmsg+0x723/0xbe0
[  174.029291][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  174.029291][   T10]      ___sys_sendmsg+0xee/0x170
[  174.029291][   T10]      __sys_sendmsg+0xcd/0x170
[  174.029291][   T10]      do_syscall_64+0xc6/0x1e0
[  174.029291][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  174.029291][   T10] 
[  174.031271][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  174.031538][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  174.031538][   T10]      dst_init+0x84/0x4a0
[  174.031538][   T10]      dst_alloc+0x97/0x150
[  174.031538][   T10]      ip6_dst_alloc+0x23/0x90
[  174.031538][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  174.031538][   T10]      ip6_pol_route+0x56f/0x840
[  174.031538][   T10]      fib6_rule_lookup+0x456/0x630
[  174.031538][   T10]      ip6_route_input+0x59c/0xa50
[  174.031538][   T10]      ipv6_rcv+0x397/0x810
[  174.031538][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  174.031538][   T10]      process_backlog+0x101/0x620
[  174.031538][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  174.031538][   T10]      net_rx_action+0x495/0xbe0
[  174.031538][   T10]      __do_softirq+0x1b5/0x7f6
[  174.031538][   T10] 
[  174.033423][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  174.033423][   T10]      netdev_get_by_index+0x5e/0x80
[  174.033423][   T10]      fib6_nh_init+0x3d8/0x1580
[  174.033423][   T10]      ip6_route_info_create+0xf18/0x17d0
[  174.033423][   T10]      ip6_route_add+0x1c/0x140
[  174.033423][   T10]      addrconf_prefix_route+0x2a6/0x430
[  174.033423][   T10]      inet6_addr_add+0x4f8/0xa40
[  174.033423][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  174.033423][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  174.033423][   T10]      netlink_rcv_skb+0x130/0x360
[  174.033423][   T10]      netlink_unicast+0x449/0x710
[  174.033423][   T10]      netlink_sendmsg+0x723/0xbe0
[  174.033423][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  174.033423][   T10]      ___sys_sendmsg+0xee/0x170
[  174.033423][   T10]      __sys_sendmsg+0xcd/0x170
[  174.033423][   T10]      do_syscall_64+0xc6/0x1e0
[  174.033423][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  174.033423][   T10] 
[  174.035727][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  174.035727][   T10]      netdev_get_by_index+0x5e/0x80
[  174.035727][   T10]      fib6_nh_init+0x3d8/0x1580
[  174.035727][   T10]      ip6_route_info_create+0xf18/0x17d0
[  174.035727][   T10]      addrconf_f6i_alloc+0x315/0x560
[  174.035727][   T10]      ipv6_add_addr+0x411/0x2000
[  174.035727][   T10]      inet6_addr_add+0x30e/0xa40
[  174.035727][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  174.035727][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  174.035727][   T10]      netlink_rcv_skb+0x130/0x360
[  174.035727][   T10]      netlink_unicast+0x449/0x710
[  174.035727][   T10]      netlink_sendmsg+0x723/0xbe0
[  174.035727][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  174.035727][   T10]      ___sys_sendmsg+0xee/0x170
[  174.035727][   T10]      __sys_sendmsg+0xcd/0x170
[  174.035727][   T10]      do_syscall_64+0xc6/0x1e0
[  174.035727][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  174.035727][   T10] 
[  174.038020][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  174.038020][   T10]      netdev_get_by_index+0x5e/0x80
[  174.038020][   T10]      fib6_nh_init+0x3d8/0x1580
[  174.038020][   T10]      ip6_route_info_create+0xf18/0x17d0
[  174.038020][   T10]      ip6_route_add+0x1c/0x140
[  174.038020][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  174.038020][   T10]      addrconf_add_dev+0xe2/0x170
[  174.038020][   T10]      inet6_addr_add+0x12f/0xa40
[  174.038020][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  174.038020][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  174.038020][   T10]      netlink_rcv_skb+0x130/0x360
[  174.038020][   T10]      netlink_unicast+0x449/0x710
[  174.038020][   T10]      netlink_sendmsg+0x723/0xbe0
[  174.038020][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  174.038020][   T10]      ___sys_sendmsg+0xee/0x170
[  174.038020][   T10]      __sys_sendmsg+0xcd/0x170
[  174.038020][   T10]      do_syscall_64+0xc6/0x1e0
[  174.038020][   T10] 
[  174.040294][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  174.040294][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  174.040294][   T10]      ipv6_find_idev+0x102/0x170
[  174.040294][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  174.040294][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  174.040294][   T10]      netlink_rcv_skb+0x130/0x360
[  174.040294][   T10]      netlink_unicast+0x449/0x710
[  174.040294][   T10]      netlink_sendmsg+0x723/0xbe0
[  174.040294][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  174.040294][   T10]      ___sys_sendmsg+0xee/0x170
[  174.040294][   T10]      __sys_sendmsg+0xcd/0x170
[  174.040294][   T10]      do_syscall_64+0xc6/0x1e0
[  174.040294][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  174.040294][   T10] 
[  174.042092][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  174.042092][   T10]      neigh_parms_alloc+0x1e5/0x510
[  174.042092][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  174.042092][   T10]      ipv6_find_idev+0x102/0x170
[  174.042092][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  174.042092][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  174.042092][   T10]      netlink_rcv_skb+0x130/0x360
[  174.042092][   T10]      netlink_unicast+0x449/0x710
[  174.042092][   T10]      netlink_sendmsg+0x723/0xbe0
[  174.042092][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  174.042092][   T10]      ___sys_sendmsg+0xee/0x170
[  174.042092][   T10]      __sys_sendmsg+0xcd/0x170
[  174.042092][   T10]      do_syscall_64+0xc6/0x1e0
[  174.042092][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  174.042092][   T10] 
[  184.281777][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  184.282227][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  184.282227][   T10]      dst_init+0x84/0x4a0
[  184.282227][   T10]      dst_alloc+0x97/0x150
[  184.282227][   T10]      ip6_dst_alloc+0x23/0x90
[  184.282227][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  184.282227][   T10]      ip6_pol_route+0x56f/0x840
[  184.282227][   T10]      fib6_rule_lookup+0x456/0x630
[  184.282227][   T10]      ip6_route_input+0x59c/0xa50
[  184.282227][   T10]      ipv6_rcv+0x397/0x810
[  184.282227][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  184.282227][   T10]      process_backlog+0x101/0x620
[  184.282227][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  184.282227][   T10]      net_rx_action+0x495/0xbe0
[  184.282227][   T10]      __do_softirq+0x1b5/0x7f6
[  184.282227][   T10] 
[  184.284206][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  184.284206][   T10]      netdev_get_by_index+0x5e/0x80
[  184.284206][   T10]      fib6_nh_init+0x3d8/0x1580
[  184.284206][   T10]      ip6_route_info_create+0xf18/0x17d0
[  184.284206][   T10]      ip6_route_add+0x1c/0x140
[  184.284206][   T10]      addrconf_prefix_route+0x2a6/0x430
[  184.284206][   T10]      inet6_addr_add+0x4f8/0xa40
[  184.284206][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  184.284206][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  184.284206][   T10]      netlink_rcv_skb+0x130/0x360
[  184.284206][   T10]      netlink_unicast+0x449/0x710
[  184.284206][   T10]      netlink_sendmsg+0x723/0xbe0
[  184.284206][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  184.284206][   T10]      ___sys_sendmsg+0xee/0x170
[  184.284206][   T10]      __sys_sendmsg+0xcd/0x170
[  184.284206][   T10]      do_syscall_64+0xc6/0x1e0
[  184.284206][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  184.284206][   T10] 
[  184.286563][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  184.286563][   T10]      netdev_get_by_index+0x5e/0x80
[  184.286563][   T10]      fib6_nh_init+0x3d8/0x1580
[  184.286563][   T10]      ip6_route_info_create+0xf18/0x17d0
[  184.286563][   T10]      addrconf_f6i_alloc+0x315/0x560
[  184.286563][   T10]      ipv6_add_addr+0x411/0x2000
[  184.286563][   T10]      inet6_addr_add+0x30e/0xa40
[  184.286563][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  184.286563][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  184.286563][   T10]      netlink_rcv_skb+0x130/0x360
[  184.286563][   T10]      netlink_unicast+0x449/0x710
[  184.286563][   T10]      netlink_sendmsg+0x723/0xbe0
[  184.286563][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  184.286563][   T10]      ___sys_sendmsg+0xee/0x170
[  184.286563][   T10]      __sys_sendmsg+0xcd/0x170
[  184.286563][   T10]      do_syscall_64+0xc6/0x1e0
[  184.286563][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  184.286563][   T10] 
[  184.288933][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  184.288933][   T10]      netdev_get_by_index+0x5e/0x80
[  184.288933][   T10]      fib6_nh_init+0x3d8/0x1580
[  184.288933][   T10]      ip6_route_info_create+0xf18/0x17d0
[  184.288933][   T10]      ip6_route_add+0x1c/0x140
[  184.288933][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  184.288933][   T10]      addrconf_add_dev+0xe2/0x170
[  184.288933][   T10]      inet6_addr_add+0x12f/0xa40
[  184.288933][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  184.288933][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  184.288933][   T10]      netlink_rcv_skb+0x130/0x360
[  184.288933][   T10]      netlink_unicast+0x449/0x710
[  184.288933][   T10]      netlink_sendmsg+0x723/0xbe0
[  184.288933][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  184.288933][   T10]      ___sys_sendmsg+0xee/0x170
[  184.288933][   T10]      __sys_sendmsg+0xcd/0x170
[  184.288933][   T10]      do_syscall_64+0xc6/0x1e0
[  184.288933][   T10] 
[  184.291266][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  184.291266][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  184.291266][   T10]      ipv6_find_idev+0x102/0x170
[  184.291266][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  184.291266][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  184.291266][   T10]      netlink_rcv_skb+0x130/0x360
[  184.291266][   T10]      netlink_unicast+0x449/0x710
[  184.291266][   T10]      netlink_sendmsg+0x723/0xbe0
[  184.291266][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  184.291266][   T10]      ___sys_sendmsg+0xee/0x170
[  184.291266][   T10]      __sys_sendmsg+0xcd/0x170
[  184.291266][   T10]      do_syscall_64+0xc6/0x1e0
[  184.291266][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  184.291266][   T10] 
[  184.293045][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  184.293045][   T10]      neigh_parms_alloc+0x1e5/0x510
[  184.293045][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  184.293045][   T10]      ipv6_find_idev+0x102/0x170
[  184.293045][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  184.293045][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  184.293045][   T10]      netlink_rcv_skb+0x130/0x360
[  184.293045][   T10]      netlink_unicast+0x449/0x710
[  184.293045][   T10]      netlink_sendmsg+0x723/0xbe0
[  184.293045][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  184.293045][   T10]      ___sys_sendmsg+0xee/0x170
[  184.293045][   T10]      __sys_sendmsg+0xcd/0x170
[  184.293045][   T10]      do_syscall_64+0xc6/0x1e0
[  184.293045][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  184.293045][   T10] 
[  184.295012][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  184.295283][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  184.295283][   T10]      dst_init+0x84/0x4a0
[  184.295283][   T10]      dst_alloc+0x97/0x150
[  184.295283][   T10]      ip6_dst_alloc+0x23/0x90
[  184.295283][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  184.295283][   T10]      ip6_pol_route+0x56f/0x840
[  184.295283][   T10]      fib6_rule_lookup+0x456/0x630
[  184.295283][   T10]      ip6_route_input+0x59c/0xa50
[  184.295283][   T10]      ipv6_rcv+0x397/0x810
[  184.295283][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  184.295283][   T10]      process_backlog+0x101/0x620
[  184.295283][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  184.295283][   T10]      net_rx_action+0x495/0xbe0
[  184.295283][   T10]      __do_softirq+0x1b5/0x7f6
[  184.295283][   T10] 
[  184.297179][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  184.297179][   T10]      netdev_get_by_index+0x5e/0x80
[  184.297179][   T10]      fib6_nh_init+0x3d8/0x1580
[  184.297179][   T10]      ip6_route_info_create+0xf18/0x17d0
[  184.297179][   T10]      ip6_route_add+0x1c/0x140
[  184.297179][   T10]      addrconf_prefix_route+0x2a6/0x430
[  184.297179][   T10]      inet6_addr_add+0x4f8/0xa40
[  184.297179][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  184.297179][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  184.297179][   T10]      netlink_rcv_skb+0x130/0x360
[  184.297179][   T10]      netlink_unicast+0x449/0x710
[  184.297179][   T10]      netlink_sendmsg+0x723/0xbe0
[  184.297179][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  184.297179][   T10]      ___sys_sendmsg+0xee/0x170
[  184.297179][   T10]      __sys_sendmsg+0xcd/0x170
[  184.297179][   T10]      do_syscall_64+0xc6/0x1e0
[  184.297179][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  184.297179][   T10] 
[  184.299459][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  184.299459][   T10]      netdev_get_by_index+0x5e/0x80
[  184.299459][   T10]      fib6_nh_init+0x3d8/0x1580
[  184.299459][   T10]      ip6_route_info_create+0xf18/0x17d0
[  184.299459][   T10]      addrconf_f6i_alloc+0x315/0x560
[  184.299459][   T10]      ipv6_add_addr+0x411/0x2000
[  184.299459][   T10]      inet6_addr_add+0x30e/0xa40
[  184.299459][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  184.299459][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  184.299459][   T10]      netlink_rcv_skb+0x130/0x360
[  184.299459][   T10]      netlink_unicast+0x449/0x710
[  184.299459][   T10]      netlink_sendmsg+0x723/0xbe0
[  184.299459][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  184.299459][   T10]      ___sys_sendmsg+0xee/0x170
[  184.299459][   T10]      __sys_sendmsg+0xcd/0x170
[  184.299459][   T10]      do_syscall_64+0xc6/0x1e0
[  184.299459][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  184.299459][   T10] 
[  184.301788][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  184.301788][   T10]      netdev_get_by_index+0x5e/0x80
[  184.301788][   T10]      fib6_nh_init+0x3d8/0x1580
[  184.301788][   T10]      ip6_route_info_create+0xf18/0x17d0
[  184.301788][   T10]      ip6_route_add+0x1c/0x140
[  184.301788][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  184.301788][   T10]      addrconf_add_dev+0xe2/0x170
[  184.301788][   T10]      inet6_addr_add+0x12f/0xa40
[  184.301788][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  184.301788][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  184.301788][   T10]      netlink_rcv_skb+0x130/0x360
[  184.301788][   T10]      netlink_unicast+0x449/0x710
[  184.301788][   T10]      netlink_sendmsg+0x723/0xbe0
[  184.301788][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  184.301788][   T10]      ___sys_sendmsg+0xee/0x170
[  184.301788][   T10]      __sys_sendmsg+0xcd/0x170
[  184.301788][   T10]      do_syscall_64+0xc6/0x1e0
[  184.301788][   T10] 
[  184.304061][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  184.304061][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  184.304061][   T10]      ipv6_find_idev+0x102/0x170
[  184.304061][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  184.304061][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  184.304061][   T10]      netlink_rcv_skb+0x130/0x360
[  184.304061][   T10]      netlink_unicast+0x449/0x710
[  184.304061][   T10]      netlink_sendmsg+0x723/0xbe0
[  184.304061][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  184.304061][   T10]      ___sys_sendmsg+0xee/0x170
[  184.304061][   T10]      __sys_sendmsg+0xcd/0x170
[  184.304061][   T10]      do_syscall_64+0xc6/0x1e0
[  184.304061][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  184.304061][   T10] 
[  184.305858][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  184.305858][   T10]      neigh_parms_alloc+0x1e5/0x510
[  184.305858][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  184.305858][   T10]      ipv6_find_idev+0x102/0x170
[  184.305858][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  184.305858][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  184.305858][   T10]      netlink_rcv_skb+0x130/0x360
[  184.305858][   T10]      netlink_unicast+0x449/0x710
[  184.305858][   T10]      netlink_sendmsg+0x723/0xbe0
[  184.305858][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  184.305858][   T10]      ___sys_sendmsg+0xee/0x170
[  184.305858][   T10]      __sys_sendmsg+0xcd/0x170
[  184.305858][   T10]      do_syscall_64+0xc6/0x1e0
[  184.305858][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  184.305858][   T10] 
[  194.545787][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  194.546252][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  194.546252][   T10]      dst_init+0x84/0x4a0
[  194.546252][   T10]      dst_alloc+0x97/0x150
[  194.546252][   T10]      ip6_dst_alloc+0x23/0x90
[  194.546252][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  194.546252][   T10]      ip6_pol_route+0x56f/0x840
[  194.546252][   T10]      fib6_rule_lookup+0x456/0x630
[  194.546252][   T10]      ip6_route_input+0x59c/0xa50
[  194.546252][   T10]      ipv6_rcv+0x397/0x810
[  194.546252][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  194.546252][   T10]      process_backlog+0x101/0x620
[  194.546252][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  194.546252][   T10]      net_rx_action+0x495/0xbe0
[  194.546252][   T10]      __do_softirq+0x1b5/0x7f6
[  194.546252][   T10] 
[  194.548189][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  194.548189][   T10]      netdev_get_by_index+0x5e/0x80
[  194.548189][   T10]      fib6_nh_init+0x3d8/0x1580
[  194.548189][   T10]      ip6_route_info_create+0xf18/0x17d0
[  194.548189][   T10]      ip6_route_add+0x1c/0x140
[  194.548189][   T10]      addrconf_prefix_route+0x2a6/0x430
[  194.548189][   T10]      inet6_addr_add+0x4f8/0xa40
[  194.548189][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  194.548189][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  194.548189][   T10]      netlink_rcv_skb+0x130/0x360
[  194.548189][   T10]      netlink_unicast+0x449/0x710
[  194.548189][   T10]      netlink_sendmsg+0x723/0xbe0
[  194.548189][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  194.548189][   T10]      ___sys_sendmsg+0xee/0x170
[  194.548189][   T10]      __sys_sendmsg+0xcd/0x170
[  194.548189][   T10]      do_syscall_64+0xc6/0x1e0
[  194.548189][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  194.548189][   T10] 
[  194.550503][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  194.550503][   T10]      netdev_get_by_index+0x5e/0x80
[  194.550503][   T10]      fib6_nh_init+0x3d8/0x1580
[  194.550503][   T10]      ip6_route_info_create+0xf18/0x17d0
[  194.550503][   T10]      addrconf_f6i_alloc+0x315/0x560
[  194.550503][   T10]      ipv6_add_addr+0x411/0x2000
[  194.550503][   T10]      inet6_addr_add+0x30e/0xa40
[  194.550503][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  194.550503][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  194.550503][   T10]      netlink_rcv_skb+0x130/0x360
[  194.550503][   T10]      netlink_unicast+0x449/0x710
[  194.550503][   T10]      netlink_sendmsg+0x723/0xbe0
[  194.550503][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  194.550503][   T10]      ___sys_sendmsg+0xee/0x170
[  194.550503][   T10]      __sys_sendmsg+0xcd/0x170
[  194.550503][   T10]      do_syscall_64+0xc6/0x1e0
[  194.550503][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  194.550503][   T10] 
[  194.552829][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  194.552829][   T10]      netdev_get_by_index+0x5e/0x80
[  194.552829][   T10]      fib6_nh_init+0x3d8/0x1580
[  194.552829][   T10]      ip6_route_info_create+0xf18/0x17d0
[  194.552829][   T10]      ip6_route_add+0x1c/0x140
[  194.552829][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  194.552829][   T10]      addrconf_add_dev+0xe2/0x170
[  194.552829][   T10]      inet6_addr_add+0x12f/0xa40
[  194.552829][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  194.552829][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  194.552829][   T10]      netlink_rcv_skb+0x130/0x360
[  194.552829][   T10]      netlink_unicast+0x449/0x710
[  194.552829][   T10]      netlink_sendmsg+0x723/0xbe0
[  194.552829][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  194.552829][   T10]      ___sys_sendmsg+0xee/0x170
[  194.552829][   T10]      __sys_sendmsg+0xcd/0x170
[  194.552829][   T10]      do_syscall_64+0xc6/0x1e0
[  194.552829][   T10] 
[  194.555077][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  194.555077][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  194.555077][   T10]      ipv6_find_idev+0x102/0x170
[  194.555077][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  194.555077][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  194.555077][   T10]      netlink_rcv_skb+0x130/0x360
[  194.555077][   T10]      netlink_unicast+0x449/0x710
[  194.555077][   T10]      netlink_sendmsg+0x723/0xbe0
[  194.555077][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  194.555077][   T10]      ___sys_sendmsg+0xee/0x170
[  194.555077][   T10]      __sys_sendmsg+0xcd/0x170
[  194.555077][   T10]      do_syscall_64+0xc6/0x1e0
[  194.555077][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  194.555077][   T10] 
[  194.556825][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  194.556825][   T10]      neigh_parms_alloc+0x1e5/0x510
[  194.556825][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  194.556825][   T10]      ipv6_find_idev+0x102/0x170
[  194.556825][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  194.556825][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  194.556825][   T10]      netlink_rcv_skb+0x130/0x360
[  194.556825][   T10]      netlink_unicast+0x449/0x710
[  194.556825][   T10]      netlink_sendmsg+0x723/0xbe0
[  194.556825][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  194.556825][   T10]      ___sys_sendmsg+0xee/0x170
[  194.556825][   T10]      __sys_sendmsg+0xcd/0x170
[  194.556825][   T10]      do_syscall_64+0xc6/0x1e0
[  194.556825][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  194.556825][   T10] 
[  194.558789][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  194.559063][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  194.559063][   T10]      dst_init+0x84/0x4a0
[  194.559063][   T10]      dst_alloc+0x97/0x150
[  194.559063][   T10]      ip6_dst_alloc+0x23/0x90
[  194.559063][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  194.559063][   T10]      ip6_pol_route+0x56f/0x840
[  194.559063][   T10]      fib6_rule_lookup+0x456/0x630
[  194.559063][   T10]      ip6_route_input+0x59c/0xa50
[  194.559063][   T10]      ipv6_rcv+0x397/0x810
[  194.559063][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  194.559063][   T10]      process_backlog+0x101/0x620
[  194.559063][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  194.559063][   T10]      net_rx_action+0x495/0xbe0
[  194.559063][   T10]      __do_softirq+0x1b5/0x7f6
[  194.559063][   T10] 
[  194.560961][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  194.560961][   T10]      netdev_get_by_index+0x5e/0x80
[  194.560961][   T10]      fib6_nh_init+0x3d8/0x1580
[  194.560961][   T10]      ip6_route_info_create+0xf18/0x17d0
[  194.560961][   T10]      ip6_route_add+0x1c/0x140
[  194.560961][   T10]      addrconf_prefix_route+0x2a6/0x430
[  194.560961][   T10]      inet6_addr_add+0x4f8/0xa40
[  194.560961][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  194.560961][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  194.560961][   T10]      netlink_rcv_skb+0x130/0x360
[  194.560961][   T10]      netlink_unicast+0x449/0x710
[  194.560961][   T10]      netlink_sendmsg+0x723/0xbe0
[  194.560961][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  194.560961][   T10]      ___sys_sendmsg+0xee/0x170
[  194.560961][   T10]      __sys_sendmsg+0xcd/0x170
[  194.560961][   T10]      do_syscall_64+0xc6/0x1e0
[  194.560961][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  194.560961][   T10] 
[  194.563270][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  194.563270][   T10]      netdev_get_by_index+0x5e/0x80
[  194.563270][   T10]      fib6_nh_init+0x3d8/0x1580
[  194.563270][   T10]      ip6_route_info_create+0xf18/0x17d0
[  194.563270][   T10]      addrconf_f6i_alloc+0x315/0x560
[  194.563270][   T10]      ipv6_add_addr+0x411/0x2000
[  194.563270][   T10]      inet6_addr_add+0x30e/0xa40
[  194.563270][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  194.563270][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  194.563270][   T10]      netlink_rcv_skb+0x130/0x360
[  194.563270][   T10]      netlink_unicast+0x449/0x710
[  194.563270][   T10]      netlink_sendmsg+0x723/0xbe0
[  194.563270][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  194.563270][   T10]      ___sys_sendmsg+0xee/0x170
[  194.563270][   T10]      __sys_sendmsg+0xcd/0x170
[  194.563270][   T10]      do_syscall_64+0xc6/0x1e0
[  194.563270][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  194.563270][   T10] 
[  194.565564][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  194.565564][   T10]      netdev_get_by_index+0x5e/0x80
[  194.565564][   T10]      fib6_nh_init+0x3d8/0x1580
[  194.565564][   T10]      ip6_route_info_create+0xf18/0x17d0
[  194.565564][   T10]      ip6_route_add+0x1c/0x140
[  194.565564][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  194.565564][   T10]      addrconf_add_dev+0xe2/0x170
[  194.565564][   T10]      inet6_addr_add+0x12f/0xa40
[  194.565564][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  194.565564][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  194.565564][   T10]      netlink_rcv_skb+0x130/0x360
[  194.565564][   T10]      netlink_unicast+0x449/0x710
[  194.565564][   T10]      netlink_sendmsg+0x723/0xbe0
[  194.565564][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  194.565564][   T10]      ___sys_sendmsg+0xee/0x170
[  194.565564][   T10]      __sys_sendmsg+0xcd/0x170
[  194.565564][   T10]      do_syscall_64+0xc6/0x1e0
[  194.565564][   T10] 
[  194.567799][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  194.567799][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  194.567799][   T10]      ipv6_find_idev+0x102/0x170
[  194.567799][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  194.567799][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  194.567799][   T10]      netlink_rcv_skb+0x130/0x360
[  194.567799][   T10]      netlink_unicast+0x449/0x710
[  194.567799][   T10]      netlink_sendmsg+0x723/0xbe0
[  194.567799][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  194.567799][   T10]      ___sys_sendmsg+0xee/0x170
[  194.567799][   T10]      __sys_sendmsg+0xcd/0x170
[  194.567799][   T10]      do_syscall_64+0xc6/0x1e0
[  194.567799][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  194.567799][   T10] 
[  194.569545][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  194.569545][   T10]      neigh_parms_alloc+0x1e5/0x510
[  194.569545][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  194.569545][   T10]      ipv6_find_idev+0x102/0x170
[  194.569545][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  194.569545][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  194.569545][   T10]      netlink_rcv_skb+0x130/0x360
[  194.569545][   T10]      netlink_unicast+0x449/0x710
[  194.569545][   T10]      netlink_sendmsg+0x723/0xbe0
[  194.569545][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  194.569545][   T10]      ___sys_sendmsg+0xee/0x170
[  194.569545][   T10]      __sys_sendmsg+0xcd/0x170
[  194.569545][   T10]      do_syscall_64+0xc6/0x1e0
[  194.569545][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  194.569545][   T10] 
[  204.809724][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  204.810171][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  204.810171][   T10]      dst_init+0x84/0x4a0
[  204.810171][   T10]      dst_alloc+0x97/0x150
[  204.810171][   T10]      ip6_dst_alloc+0x23/0x90
[  204.810171][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  204.810171][   T10]      ip6_pol_route+0x56f/0x840
[  204.810171][   T10]      fib6_rule_lookup+0x456/0x630
[  204.810171][   T10]      ip6_route_input+0x59c/0xa50
[  204.810171][   T10]      ipv6_rcv+0x397/0x810
[  204.810171][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  204.810171][   T10]      process_backlog+0x101/0x620
[  204.810171][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  204.810171][   T10]      net_rx_action+0x495/0xbe0
[  204.810171][   T10]      __do_softirq+0x1b5/0x7f6
[  204.810171][   T10] 
[  204.812049][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  204.812049][   T10]      netdev_get_by_index+0x5e/0x80
[  204.812049][   T10]      fib6_nh_init+0x3d8/0x1580
[  204.812049][   T10]      ip6_route_info_create+0xf18/0x17d0
[  204.812049][   T10]      ip6_route_add+0x1c/0x140
[  204.812049][   T10]      addrconf_prefix_route+0x2a6/0x430
[  204.812049][   T10]      inet6_addr_add+0x4f8/0xa40
[  204.812049][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  204.812049][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  204.812049][   T10]      netlink_rcv_skb+0x130/0x360
[  204.812049][   T10]      netlink_unicast+0x449/0x710
[  204.812049][   T10]      netlink_sendmsg+0x723/0xbe0
[  204.812049][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  204.812049][   T10]      ___sys_sendmsg+0xee/0x170
[  204.812049][   T10]      __sys_sendmsg+0xcd/0x170
[  204.812049][   T10]      do_syscall_64+0xc6/0x1e0
[  204.812049][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  204.812049][   T10] 
[  204.814306][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  204.814306][   T10]      netdev_get_by_index+0x5e/0x80
[  204.814306][   T10]      fib6_nh_init+0x3d8/0x1580
[  204.814306][   T10]      ip6_route_info_create+0xf18/0x17d0
[  204.814306][   T10]      addrconf_f6i_alloc+0x315/0x560
[  204.814306][   T10]      ipv6_add_addr+0x411/0x2000
[  204.814306][   T10]      inet6_addr_add+0x30e/0xa40
[  204.814306][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  204.814306][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  204.814306][   T10]      netlink_rcv_skb+0x130/0x360
[  204.814306][   T10]      netlink_unicast+0x449/0x710
[  204.814306][   T10]      netlink_sendmsg+0x723/0xbe0
[  204.814306][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  204.814306][   T10]      ___sys_sendmsg+0xee/0x170
[  204.814306][   T10]      __sys_sendmsg+0xcd/0x170
[  204.814306][   T10]      do_syscall_64+0xc6/0x1e0
[  204.814306][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  204.814306][   T10] 
[  204.816547][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  204.816547][   T10]      netdev_get_by_index+0x5e/0x80
[  204.816547][   T10]      fib6_nh_init+0x3d8/0x1580
[  204.816547][   T10]      ip6_route_info_create+0xf18/0x17d0
[  204.816547][   T10]      ip6_route_add+0x1c/0x140
[  204.816547][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  204.816547][   T10]      addrconf_add_dev+0xe2/0x170
[  204.816547][   T10]      inet6_addr_add+0x12f/0xa40
[  204.816547][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  204.816547][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  204.816547][   T10]      netlink_rcv_skb+0x130/0x360
[  204.816547][   T10]      netlink_unicast+0x449/0x710
[  204.816547][   T10]      netlink_sendmsg+0x723/0xbe0
[  204.816547][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  204.816547][   T10]      ___sys_sendmsg+0xee/0x170
[  204.816547][   T10]      __sys_sendmsg+0xcd/0x170
[  204.816547][   T10]      do_syscall_64+0xc6/0x1e0
[  204.816547][   T10] 
[  204.818740][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  204.818740][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  204.818740][   T10]      ipv6_find_idev+0x102/0x170
[  204.818740][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  204.818740][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  204.818740][   T10]      netlink_rcv_skb+0x130/0x360
[  204.818740][   T10]      netlink_unicast+0x449/0x710
[  204.818740][   T10]      netlink_sendmsg+0x723/0xbe0
[  204.818740][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  204.818740][   T10]      ___sys_sendmsg+0xee/0x170
[  204.818740][   T10]      __sys_sendmsg+0xcd/0x170
[  204.818740][   T10]      do_syscall_64+0xc6/0x1e0
[  204.818740][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  204.818740][   T10] 
[  204.820486][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  204.820486][   T10]      neigh_parms_alloc+0x1e5/0x510
[  204.820486][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  204.820486][   T10]      ipv6_find_idev+0x102/0x170
[  204.820486][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  204.820486][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  204.820486][   T10]      netlink_rcv_skb+0x130/0x360
[  204.820486][   T10]      netlink_unicast+0x449/0x710
[  204.820486][   T10]      netlink_sendmsg+0x723/0xbe0
[  204.820486][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  204.820486][   T10]      ___sys_sendmsg+0xee/0x170
[  204.820486][   T10]      __sys_sendmsg+0xcd/0x170
[  204.820486][   T10]      do_syscall_64+0xc6/0x1e0
[  204.820486][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  204.820486][   T10] 
[  204.822372][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  204.822638][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  204.822638][   T10]      dst_init+0x84/0x4a0
[  204.822638][   T10]      dst_alloc+0x97/0x150
[  204.822638][   T10]      ip6_dst_alloc+0x23/0x90
[  204.822638][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  204.822638][   T10]      ip6_pol_route+0x56f/0x840
[  204.822638][   T10]      fib6_rule_lookup+0x456/0x630
[  204.822638][   T10]      ip6_route_input+0x59c/0xa50
[  204.822638][   T10]      ipv6_rcv+0x397/0x810
[  204.822638][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  204.822638][   T10]      process_backlog+0x101/0x620
[  204.822638][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  204.822638][   T10]      net_rx_action+0x495/0xbe0
[  204.822638][   T10]      __do_softirq+0x1b5/0x7f6
[  204.822638][   T10] 
[  204.824468][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  204.824468][   T10]      netdev_get_by_index+0x5e/0x80
[  204.824468][   T10]      fib6_nh_init+0x3d8/0x1580
[  204.824468][   T10]      ip6_route_info_create+0xf18/0x17d0
[  204.824468][   T10]      ip6_route_add+0x1c/0x140
[  204.824468][   T10]      addrconf_prefix_route+0x2a6/0x430
[  204.824468][   T10]      inet6_addr_add+0x4f8/0xa40
[  204.824468][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  204.824468][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  204.824468][   T10]      netlink_rcv_skb+0x130/0x360
[  204.824468][   T10]      netlink_unicast+0x449/0x710
[  204.824468][   T10]      netlink_sendmsg+0x723/0xbe0
[  204.824468][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  204.824468][   T10]      ___sys_sendmsg+0xee/0x170
[  204.824468][   T10]      __sys_sendmsg+0xcd/0x170
[  204.824468][   T10]      do_syscall_64+0xc6/0x1e0
[  204.824468][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  204.824468][   T10] 
[  204.826701][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  204.826701][   T10]      netdev_get_by_index+0x5e/0x80
[  204.826701][   T10]      fib6_nh_init+0x3d8/0x1580
[  204.826701][   T10]      ip6_route_info_create+0xf18/0x17d0
[  204.826701][   T10]      addrconf_f6i_alloc+0x315/0x560
[  204.826701][   T10]      ipv6_add_addr+0x411/0x2000
[  204.826701][   T10]      inet6_addr_add+0x30e/0xa40
[  204.826701][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  204.826701][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  204.826701][   T10]      netlink_rcv_skb+0x130/0x360
[  204.826701][   T10]      netlink_unicast+0x449/0x710
[  204.826701][   T10]      netlink_sendmsg+0x723/0xbe0
[  204.826701][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  204.826701][   T10]      ___sys_sendmsg+0xee/0x170
[  204.826701][   T10]      __sys_sendmsg+0xcd/0x170
[  204.826701][   T10]      do_syscall_64+0xc6/0x1e0
[  204.826701][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  204.826701][   T10] 
[  204.828933][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  204.828933][   T10]      netdev_get_by_index+0x5e/0x80
[  204.828933][   T10]      fib6_nh_init+0x3d8/0x1580
[  204.828933][   T10]      ip6_route_info_create+0xf18/0x17d0
[  204.828933][   T10]      ip6_route_add+0x1c/0x140
[  204.828933][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  204.828933][   T10]      addrconf_add_dev+0xe2/0x170
[  204.828933][   T10]      inet6_addr_add+0x12f/0xa40
[  204.828933][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  204.828933][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  204.828933][   T10]      netlink_rcv_skb+0x130/0x360
[  204.828933][   T10]      netlink_unicast+0x449/0x710
[  204.828933][   T10]      netlink_sendmsg+0x723/0xbe0
[  204.828933][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  204.828933][   T10]      ___sys_sendmsg+0xee/0x170
[  204.828933][   T10]      __sys_sendmsg+0xcd/0x170
[  204.828933][   T10]      do_syscall_64+0xc6/0x1e0
[  204.828933][   T10] 
[  204.831114][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  204.831114][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  204.831114][   T10]      ipv6_find_idev+0x102/0x170
[  204.831114][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  204.831114][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  204.831114][   T10]      netlink_rcv_skb+0x130/0x360
[  204.831114][   T10]      netlink_unicast+0x449/0x710
[  204.831114][   T10]      netlink_sendmsg+0x723/0xbe0
[  204.831114][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  204.831114][   T10]      ___sys_sendmsg+0xee/0x170
[  204.831114][   T10]      __sys_sendmsg+0xcd/0x170
[  204.831114][   T10]      do_syscall_64+0xc6/0x1e0
[  204.831114][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  204.831114][   T10] 
[  204.832856][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  204.832856][   T10]      neigh_parms_alloc+0x1e5/0x510
[  204.832856][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  204.832856][   T10]      ipv6_find_idev+0x102/0x170
[  204.832856][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  204.832856][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  204.832856][   T10]      netlink_rcv_skb+0x130/0x360
[  204.832856][   T10]      netlink_unicast+0x449/0x710
[  204.832856][   T10]      netlink_sendmsg+0x723/0xbe0
[  204.832856][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  204.832856][   T10]      ___sys_sendmsg+0xee/0x170
[  204.832856][   T10]      __sys_sendmsg+0xcd/0x170
[  204.832856][   T10]      do_syscall_64+0xc6/0x1e0
[  204.832856][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  204.832856][   T10] 
[  215.073804][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  215.074249][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  215.074249][   T10]      dst_init+0x84/0x4a0
[  215.074249][   T10]      dst_alloc+0x97/0x150
[  215.074249][   T10]      ip6_dst_alloc+0x23/0x90
[  215.074249][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  215.074249][   T10]      ip6_pol_route+0x56f/0x840
[  215.074249][   T10]      fib6_rule_lookup+0x456/0x630
[  215.074249][   T10]      ip6_route_input+0x59c/0xa50
[  215.074249][   T10]      ipv6_rcv+0x397/0x810
[  215.074249][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  215.074249][   T10]      process_backlog+0x101/0x620
[  215.074249][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  215.074249][   T10]      net_rx_action+0x495/0xbe0
[  215.074249][   T10]      __do_softirq+0x1b5/0x7f6
[  215.074249][   T10] 
[  215.076147][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  215.076147][   T10]      netdev_get_by_index+0x5e/0x80
[  215.076147][   T10]      fib6_nh_init+0x3d8/0x1580
[  215.076147][   T10]      ip6_route_info_create+0xf18/0x17d0
[  215.076147][   T10]      ip6_route_add+0x1c/0x140
[  215.076147][   T10]      addrconf_prefix_route+0x2a6/0x430
[  215.076147][   T10]      inet6_addr_add+0x4f8/0xa40
[  215.076147][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  215.076147][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  215.076147][   T10]      netlink_rcv_skb+0x130/0x360
[  215.076147][   T10]      netlink_unicast+0x449/0x710
[  215.076147][   T10]      netlink_sendmsg+0x723/0xbe0
[  215.076147][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  215.076147][   T10]      ___sys_sendmsg+0xee/0x170
[  215.076147][   T10]      __sys_sendmsg+0xcd/0x170
[  215.076147][   T10]      do_syscall_64+0xc6/0x1e0
[  215.076147][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  215.076147][   T10] 
[  215.078375][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  215.078375][   T10]      netdev_get_by_index+0x5e/0x80
[  215.078375][   T10]      fib6_nh_init+0x3d8/0x1580
[  215.078375][   T10]      ip6_route_info_create+0xf18/0x17d0
[  215.078375][   T10]      addrconf_f6i_alloc+0x315/0x560
[  215.078375][   T10]      ipv6_add_addr+0x411/0x2000
[  215.078375][   T10]      inet6_addr_add+0x30e/0xa40
[  215.078375][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  215.078375][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  215.078375][   T10]      netlink_rcv_skb+0x130/0x360
[  215.078375][   T10]      netlink_unicast+0x449/0x710
[  215.078375][   T10]      netlink_sendmsg+0x723/0xbe0
[  215.078375][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  215.078375][   T10]      ___sys_sendmsg+0xee/0x170
[  215.078375][   T10]      __sys_sendmsg+0xcd/0x170
[  215.078375][   T10]      do_syscall_64+0xc6/0x1e0
[  215.078375][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  215.078375][   T10] 
[  215.080603][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  215.080603][   T10]      netdev_get_by_index+0x5e/0x80
[  215.080603][   T10]      fib6_nh_init+0x3d8/0x1580
[  215.080603][   T10]      ip6_route_info_create+0xf18/0x17d0
[  215.080603][   T10]      ip6_route_add+0x1c/0x140
[  215.080603][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  215.080603][   T10]      addrconf_add_dev+0xe2/0x170
[  215.080603][   T10]      inet6_addr_add+0x12f/0xa40
[  215.080603][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  215.080603][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  215.080603][   T10]      netlink_rcv_skb+0x130/0x360
[  215.080603][   T10]      netlink_unicast+0x449/0x710
[  215.080603][   T10]      netlink_sendmsg+0x723/0xbe0
[  215.080603][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  215.080603][   T10]      ___sys_sendmsg+0xee/0x170
[  215.080603][   T10]      __sys_sendmsg+0xcd/0x170
[  215.080603][   T10]      do_syscall_64+0xc6/0x1e0
[  215.080603][   T10] 
[  215.082805][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  215.082805][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  215.082805][   T10]      ipv6_find_idev+0x102/0x170
[  215.082805][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  215.082805][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  215.082805][   T10]      netlink_rcv_skb+0x130/0x360
[  215.082805][   T10]      netlink_unicast+0x449/0x710
[  215.082805][   T10]      netlink_sendmsg+0x723/0xbe0
[  215.082805][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  215.082805][   T10]      ___sys_sendmsg+0xee/0x170
[  215.082805][   T10]      __sys_sendmsg+0xcd/0x170
[  215.082805][   T10]      do_syscall_64+0xc6/0x1e0
[  215.082805][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  215.082805][   T10] 
[  215.084533][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  215.084533][   T10]      neigh_parms_alloc+0x1e5/0x510
[  215.084533][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  215.084533][   T10]      ipv6_find_idev+0x102/0x170
[  215.084533][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  215.084533][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  215.084533][   T10]      netlink_rcv_skb+0x130/0x360
[  215.084533][   T10]      netlink_unicast+0x449/0x710
[  215.084533][   T10]      netlink_sendmsg+0x723/0xbe0
[  215.084533][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  215.084533][   T10]      ___sys_sendmsg+0xee/0x170
[  215.084533][   T10]      __sys_sendmsg+0xcd/0x170
[  215.084533][   T10]      do_syscall_64+0xc6/0x1e0
[  215.084533][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  215.084533][   T10] 
[  215.086427][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  215.086706][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  215.086706][   T10]      dst_init+0x84/0x4a0
[  215.086706][   T10]      dst_alloc+0x97/0x150
[  215.086706][   T10]      ip6_dst_alloc+0x23/0x90
[  215.086706][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  215.086706][   T10]      ip6_pol_route+0x56f/0x840
[  215.086706][   T10]      fib6_rule_lookup+0x456/0x630
[  215.086706][   T10]      ip6_route_input+0x59c/0xa50
[  215.086706][   T10]      ipv6_rcv+0x397/0x810
[  215.086706][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  215.086706][   T10]      process_backlog+0x101/0x620
[  215.086706][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  215.086706][   T10]      net_rx_action+0x495/0xbe0
[  215.086706][   T10]      __do_softirq+0x1b5/0x7f6
[  215.086706][   T10] 
[  215.088544][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  215.088544][   T10]      netdev_get_by_index+0x5e/0x80
[  215.088544][   T10]      fib6_nh_init+0x3d8/0x1580
[  215.088544][   T10]      ip6_route_info_create+0xf18/0x17d0
[  215.088544][   T10]      ip6_route_add+0x1c/0x140
[  215.088544][   T10]      addrconf_prefix_route+0x2a6/0x430
[  215.088544][   T10]      inet6_addr_add+0x4f8/0xa40
[  215.088544][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  215.088544][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  215.088544][   T10]      netlink_rcv_skb+0x130/0x360
[  215.088544][   T10]      netlink_unicast+0x449/0x710
[  215.088544][   T10]      netlink_sendmsg+0x723/0xbe0
[  215.088544][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  215.088544][   T10]      ___sys_sendmsg+0xee/0x170
[  215.088544][   T10]      __sys_sendmsg+0xcd/0x170
[  215.088544][   T10]      do_syscall_64+0xc6/0x1e0
[  215.088544][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  215.088544][   T10] 
[  215.090795][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  215.090795][   T10]      netdev_get_by_index+0x5e/0x80
[  215.090795][   T10]      fib6_nh_init+0x3d8/0x1580
[  215.090795][   T10]      ip6_route_info_create+0xf18/0x17d0
[  215.090795][   T10]      addrconf_f6i_alloc+0x315/0x560
[  215.090795][   T10]      ipv6_add_addr+0x411/0x2000
[  215.090795][   T10]      inet6_addr_add+0x30e/0xa40
[  215.090795][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  215.090795][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  215.090795][   T10]      netlink_rcv_skb+0x130/0x360
[  215.090795][   T10]      netlink_unicast+0x449/0x710
[  215.090795][   T10]      netlink_sendmsg+0x723/0xbe0
[  215.090795][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  215.090795][   T10]      ___sys_sendmsg+0xee/0x170
[  215.090795][   T10]      __sys_sendmsg+0xcd/0x170
[  215.090795][   T10]      do_syscall_64+0xc6/0x1e0
[  215.090795][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  215.090795][   T10] 
[  215.093011][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  215.093011][   T10]      netdev_get_by_index+0x5e/0x80
[  215.093011][   T10]      fib6_nh_init+0x3d8/0x1580
[  215.093011][   T10]      ip6_route_info_create+0xf18/0x17d0
[  215.093011][   T10]      ip6_route_add+0x1c/0x140
[  215.093011][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  215.093011][   T10]      addrconf_add_dev+0xe2/0x170
[  215.093011][   T10]      inet6_addr_add+0x12f/0xa40
[  215.093011][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  215.093011][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  215.093011][   T10]      netlink_rcv_skb+0x130/0x360
[  215.093011][   T10]      netlink_unicast+0x449/0x710
[  215.093011][   T10]      netlink_sendmsg+0x723/0xbe0
[  215.093011][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  215.093011][   T10]      ___sys_sendmsg+0xee/0x170
[  215.093011][   T10]      __sys_sendmsg+0xcd/0x170
[  215.093011][   T10]      do_syscall_64+0xc6/0x1e0
[  215.093011][   T10] 
[  215.095205][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  215.095205][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  215.095205][   T10]      ipv6_find_idev+0x102/0x170
[  215.095205][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  215.095205][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  215.095205][   T10]      netlink_rcv_skb+0x130/0x360
[  215.095205][   T10]      netlink_unicast+0x449/0x710
[  215.095205][   T10]      netlink_sendmsg+0x723/0xbe0
[  215.095205][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  215.095205][   T10]      ___sys_sendmsg+0xee/0x170
[  215.095205][   T10]      __sys_sendmsg+0xcd/0x170
[  215.095205][   T10]      do_syscall_64+0xc6/0x1e0
[  215.095205][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  215.095205][   T10] 
[  215.096932][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  215.096932][   T10]      neigh_parms_alloc+0x1e5/0x510
[  215.096932][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  215.096932][   T10]      ipv6_find_idev+0x102/0x170
[  215.096932][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  215.096932][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  215.096932][   T10]      netlink_rcv_skb+0x130/0x360
[  215.096932][   T10]      netlink_unicast+0x449/0x710
[  215.096932][   T10]      netlink_sendmsg+0x723/0xbe0
[  215.096932][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  215.096932][   T10]      ___sys_sendmsg+0xee/0x170
[  215.096932][   T10]      __sys_sendmsg+0xcd/0x170
[  215.096932][   T10]      do_syscall_64+0xc6/0x1e0
[  215.096932][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  215.096932][   T10] 
[  225.337783][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  225.338211][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  225.338211][   T10]      dst_init+0x84/0x4a0
[  225.338211][   T10]      dst_alloc+0x97/0x150
[  225.338211][   T10]      ip6_dst_alloc+0x23/0x90
[  225.338211][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  225.338211][   T10]      ip6_pol_route+0x56f/0x840
[  225.338211][   T10]      fib6_rule_lookup+0x456/0x630
[  225.338211][   T10]      ip6_route_input+0x59c/0xa50
[  225.338211][   T10]      ipv6_rcv+0x397/0x810
[  225.338211][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  225.338211][   T10]      process_backlog+0x101/0x620
[  225.338211][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  225.338211][   T10]      net_rx_action+0x495/0xbe0
[  225.338211][   T10]      __do_softirq+0x1b5/0x7f6
[  225.338211][   T10] 
[  225.340064][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  225.340064][   T10]      netdev_get_by_index+0x5e/0x80
[  225.340064][   T10]      fib6_nh_init+0x3d8/0x1580
[  225.340064][   T10]      ip6_route_info_create+0xf18/0x17d0
[  225.340064][   T10]      ip6_route_add+0x1c/0x140
[  225.340064][   T10]      addrconf_prefix_route+0x2a6/0x430
[  225.340064][   T10]      inet6_addr_add+0x4f8/0xa40
[  225.340064][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  225.340064][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  225.340064][   T10]      netlink_rcv_skb+0x130/0x360
[  225.340064][   T10]      netlink_unicast+0x449/0x710
[  225.340064][   T10]      netlink_sendmsg+0x723/0xbe0
[  225.340064][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  225.340064][   T10]      ___sys_sendmsg+0xee/0x170
[  225.340064][   T10]      __sys_sendmsg+0xcd/0x170
[  225.340064][   T10]      do_syscall_64+0xc6/0x1e0
[  225.340064][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  225.340064][   T10] 
[  225.342339][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  225.342339][   T10]      netdev_get_by_index+0x5e/0x80
[  225.342339][   T10]      fib6_nh_init+0x3d8/0x1580
[  225.342339][   T10]      ip6_route_info_create+0xf18/0x17d0
[  225.342339][   T10]      addrconf_f6i_alloc+0x315/0x560
[  225.342339][   T10]      ipv6_add_addr+0x411/0x2000
[  225.342339][   T10]      inet6_addr_add+0x30e/0xa40
[  225.342339][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  225.342339][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  225.342339][   T10]      netlink_rcv_skb+0x130/0x360
[  225.342339][   T10]      netlink_unicast+0x449/0x710
[  225.342339][   T10]      netlink_sendmsg+0x723/0xbe0
[  225.342339][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  225.342339][   T10]      ___sys_sendmsg+0xee/0x170
[  225.342339][   T10]      __sys_sendmsg+0xcd/0x170
[  225.342339][   T10]      do_syscall_64+0xc6/0x1e0
[  225.342339][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  225.342339][   T10] 
[  225.344575][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  225.344575][   T10]      netdev_get_by_index+0x5e/0x80
[  225.344575][   T10]      fib6_nh_init+0x3d8/0x1580
[  225.344575][   T10]      ip6_route_info_create+0xf18/0x17d0
[  225.344575][   T10]      ip6_route_add+0x1c/0x140
[  225.344575][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  225.344575][   T10]      addrconf_add_dev+0xe2/0x170
[  225.344575][   T10]      inet6_addr_add+0x12f/0xa40
[  225.344575][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  225.344575][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  225.344575][   T10]      netlink_rcv_skb+0x130/0x360
[  225.344575][   T10]      netlink_unicast+0x449/0x710
[  225.344575][   T10]      netlink_sendmsg+0x723/0xbe0
[  225.344575][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  225.344575][   T10]      ___sys_sendmsg+0xee/0x170
[  225.344575][   T10]      __sys_sendmsg+0xcd/0x170
[  225.344575][   T10]      do_syscall_64+0xc6/0x1e0
[  225.344575][   T10] 
[  225.346780][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  225.346780][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  225.346780][   T10]      ipv6_find_idev+0x102/0x170
[  225.346780][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  225.346780][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  225.346780][   T10]      netlink_rcv_skb+0x130/0x360
[  225.346780][   T10]      netlink_unicast+0x449/0x710
[  225.346780][   T10]      netlink_sendmsg+0x723/0xbe0
[  225.346780][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  225.346780][   T10]      ___sys_sendmsg+0xee/0x170
[  225.346780][   T10]      __sys_sendmsg+0xcd/0x170
[  225.346780][   T10]      do_syscall_64+0xc6/0x1e0
[  225.346780][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  225.346780][   T10] 
[  225.348520][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  225.348520][   T10]      neigh_parms_alloc+0x1e5/0x510
[  225.348520][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  225.348520][   T10]      ipv6_find_idev+0x102/0x170
[  225.348520][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  225.348520][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  225.348520][   T10]      netlink_rcv_skb+0x130/0x360
[  225.348520][   T10]      netlink_unicast+0x449/0x710
[  225.348520][   T10]      netlink_sendmsg+0x723/0xbe0
[  225.348520][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  225.348520][   T10]      ___sys_sendmsg+0xee/0x170
[  225.348520][   T10]      __sys_sendmsg+0xcd/0x170
[  225.348520][   T10]      do_syscall_64+0xc6/0x1e0
[  225.348520][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  225.348520][   T10] 
[  225.350413][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  225.350681][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  225.350681][   T10]      dst_init+0x84/0x4a0
[  225.350681][   T10]      dst_alloc+0x97/0x150
[  225.350681][   T10]      ip6_dst_alloc+0x23/0x90
[  225.350681][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  225.350681][   T10]      ip6_pol_route+0x56f/0x840
[  225.350681][   T10]      fib6_rule_lookup+0x456/0x630
[  225.350681][   T10]      ip6_route_input+0x59c/0xa50
[  225.350681][   T10]      ipv6_rcv+0x397/0x810
[  225.350681][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  225.350681][   T10]      process_backlog+0x101/0x620
[  225.350681][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  225.350681][   T10]      net_rx_action+0x495/0xbe0
[  225.350681][   T10]      __do_softirq+0x1b5/0x7f6
[  225.350681][   T10] 
[  225.352538][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  225.352538][   T10]      netdev_get_by_index+0x5e/0x80
[  225.352538][   T10]      fib6_nh_init+0x3d8/0x1580
[  225.352538][   T10]      ip6_route_info_create+0xf18/0x17d0
[  225.352538][   T10]      ip6_route_add+0x1c/0x140
[  225.352538][   T10]      addrconf_prefix_route+0x2a6/0x430
[  225.352538][   T10]      inet6_addr_add+0x4f8/0xa40
[  225.352538][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  225.352538][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  225.352538][   T10]      netlink_rcv_skb+0x130/0x360
[  225.352538][   T10]      netlink_unicast+0x449/0x710
[  225.352538][   T10]      netlink_sendmsg+0x723/0xbe0
[  225.352538][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  225.352538][   T10]      ___sys_sendmsg+0xee/0x170
[  225.352538][   T10]      __sys_sendmsg+0xcd/0x170
[  225.352538][   T10]      do_syscall_64+0xc6/0x1e0
[  225.352538][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  225.352538][   T10] 
[  225.354768][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  225.354768][   T10]      netdev_get_by_index+0x5e/0x80
[  225.354768][   T10]      fib6_nh_init+0x3d8/0x1580
[  225.354768][   T10]      ip6_route_info_create+0xf18/0x17d0
[  225.354768][   T10]      addrconf_f6i_alloc+0x315/0x560
[  225.354768][   T10]      ipv6_add_addr+0x411/0x2000
[  225.354768][   T10]      inet6_addr_add+0x30e/0xa40
[  225.354768][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  225.354768][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  225.354768][   T10]      netlink_rcv_skb+0x130/0x360
[  225.354768][   T10]      netlink_unicast+0x449/0x710
[  225.354768][   T10]      netlink_sendmsg+0x723/0xbe0
[  225.354768][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  225.354768][   T10]      ___sys_sendmsg+0xee/0x170
[  225.354768][   T10]      __sys_sendmsg+0xcd/0x170
[  225.354768][   T10]      do_syscall_64+0xc6/0x1e0
[  225.354768][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  225.354768][   T10] 
[  225.357003][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  225.357003][   T10]      netdev_get_by_index+0x5e/0x80
[  225.357003][   T10]      fib6_nh_init+0x3d8/0x1580
[  225.357003][   T10]      ip6_route_info_create+0xf18/0x17d0
[  225.357003][   T10]      ip6_route_add+0x1c/0x140
[  225.357003][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  225.357003][   T10]      addrconf_add_dev+0xe2/0x170
[  225.357003][   T10]      inet6_addr_add+0x12f/0xa40
[  225.357003][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  225.357003][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  225.357003][   T10]      netlink_rcv_skb+0x130/0x360
[  225.357003][   T10]      netlink_unicast+0x449/0x710
[  225.357003][   T10]      netlink_sendmsg+0x723/0xbe0
[  225.357003][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  225.357003][   T10]      ___sys_sendmsg+0xee/0x170
[  225.357003][   T10]      __sys_sendmsg+0xcd/0x170
[  225.357003][   T10]      do_syscall_64+0xc6/0x1e0
[  225.357003][   T10] 
[  225.359176][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  225.359176][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  225.359176][   T10]      ipv6_find_idev+0x102/0x170
[  225.359176][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  225.359176][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  225.359176][   T10]      netlink_rcv_skb+0x130/0x360
[  225.359176][   T10]      netlink_unicast+0x449/0x710
[  225.359176][   T10]      netlink_sendmsg+0x723/0xbe0
[  225.359176][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  225.359176][   T10]      ___sys_sendmsg+0xee/0x170
[  225.359176][   T10]      __sys_sendmsg+0xcd/0x170
[  225.359176][   T10]      do_syscall_64+0xc6/0x1e0
[  225.359176][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  225.359176][   T10] 
[  225.360916][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  225.360916][   T10]      neigh_parms_alloc+0x1e5/0x510
[  225.360916][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  225.360916][   T10]      ipv6_find_idev+0x102/0x170
[  225.360916][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  225.360916][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  225.360916][   T10]      netlink_rcv_skb+0x130/0x360
[  225.360916][   T10]      netlink_unicast+0x449/0x710
[  225.360916][   T10]      netlink_sendmsg+0x723/0xbe0
[  225.360916][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  225.360916][   T10]      ___sys_sendmsg+0xee/0x170
[  225.360916][   T10]      __sys_sendmsg+0xcd/0x170
[  225.360916][   T10]      do_syscall_64+0xc6/0x1e0
[  225.360916][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  225.360916][   T10] 
[  235.601816][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  235.602251][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  235.602251][   T10]      dst_init+0x84/0x4a0
[  235.602251][   T10]      dst_alloc+0x97/0x150
[  235.602251][   T10]      ip6_dst_alloc+0x23/0x90
[  235.602251][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  235.602251][   T10]      ip6_pol_route+0x56f/0x840
[  235.602251][   T10]      fib6_rule_lookup+0x456/0x630
[  235.602251][   T10]      ip6_route_input+0x59c/0xa50
[  235.602251][   T10]      ipv6_rcv+0x397/0x810
[  235.602251][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  235.602251][   T10]      process_backlog+0x101/0x620
[  235.602251][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  235.602251][   T10]      net_rx_action+0x495/0xbe0
[  235.602251][   T10]      __do_softirq+0x1b5/0x7f6
[  235.602251][   T10] 
[  235.604127][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  235.604127][   T10]      netdev_get_by_index+0x5e/0x80
[  235.604127][   T10]      fib6_nh_init+0x3d8/0x1580
[  235.604127][   T10]      ip6_route_info_create+0xf18/0x17d0
[  235.604127][   T10]      ip6_route_add+0x1c/0x140
[  235.604127][   T10]      addrconf_prefix_route+0x2a6/0x430
[  235.604127][   T10]      inet6_addr_add+0x4f8/0xa40
[  235.604127][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  235.604127][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  235.604127][   T10]      netlink_rcv_skb+0x130/0x360
[  235.604127][   T10]      netlink_unicast+0x449/0x710
[  235.604127][   T10]      netlink_sendmsg+0x723/0xbe0
[  235.604127][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  235.604127][   T10]      ___sys_sendmsg+0xee/0x170
[  235.604127][   T10]      __sys_sendmsg+0xcd/0x170
[  235.604127][   T10]      do_syscall_64+0xc6/0x1e0
[  235.604127][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  235.604127][   T10] 
[  235.606391][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  235.606391][   T10]      netdev_get_by_index+0x5e/0x80
[  235.606391][   T10]      fib6_nh_init+0x3d8/0x1580
[  235.606391][   T10]      ip6_route_info_create+0xf18/0x17d0
[  235.606391][   T10]      addrconf_f6i_alloc+0x315/0x560
[  235.606391][   T10]      ipv6_add_addr+0x411/0x2000
[  235.606391][   T10]      inet6_addr_add+0x30e/0xa40
[  235.606391][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  235.606391][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  235.606391][   T10]      netlink_rcv_skb+0x130/0x360
[  235.606391][   T10]      netlink_unicast+0x449/0x710
[  235.606391][   T10]      netlink_sendmsg+0x723/0xbe0
[  235.606391][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  235.606391][   T10]      ___sys_sendmsg+0xee/0x170
[  235.606391][   T10]      __sys_sendmsg+0xcd/0x170
[  235.606391][   T10]      do_syscall_64+0xc6/0x1e0
[  235.606391][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  235.606391][   T10] 
[  235.608662][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  235.608662][   T10]      netdev_get_by_index+0x5e/0x80
[  235.608662][   T10]      fib6_nh_init+0x3d8/0x1580
[  235.608662][   T10]      ip6_route_info_create+0xf18/0x17d0
[  235.608662][   T10]      ip6_route_add+0x1c/0x140
[  235.608662][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  235.608662][   T10]      addrconf_add_dev+0xe2/0x170
[  235.608662][   T10]      inet6_addr_add+0x12f/0xa40
[  235.608662][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  235.608662][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  235.608662][   T10]      netlink_rcv_skb+0x130/0x360
[  235.608662][   T10]      netlink_unicast+0x449/0x710
[  235.608662][   T10]      netlink_sendmsg+0x723/0xbe0
[  235.608662][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  235.608662][   T10]      ___sys_sendmsg+0xee/0x170
[  235.608662][   T10]      __sys_sendmsg+0xcd/0x170
[  235.608662][   T10]      do_syscall_64+0xc6/0x1e0
[  235.608662][   T10] 
[  235.610894][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  235.610894][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  235.610894][   T10]      ipv6_find_idev+0x102/0x170
[  235.610894][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  235.610894][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  235.610894][   T10]      netlink_rcv_skb+0x130/0x360
[  235.610894][   T10]      netlink_unicast+0x449/0x710
[  235.610894][   T10]      netlink_sendmsg+0x723/0xbe0
[  235.610894][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  235.610894][   T10]      ___sys_sendmsg+0xee/0x170
[  235.610894][   T10]      __sys_sendmsg+0xcd/0x170
[  235.610894][   T10]      do_syscall_64+0xc6/0x1e0
[  235.610894][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  235.610894][   T10] 
[  235.612614][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  235.612614][   T10]      neigh_parms_alloc+0x1e5/0x510
[  235.612614][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  235.612614][   T10]      ipv6_find_idev+0x102/0x170
[  235.612614][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  235.612614][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  235.612614][   T10]      netlink_rcv_skb+0x130/0x360
[  235.612614][   T10]      netlink_unicast+0x449/0x710
[  235.612614][   T10]      netlink_sendmsg+0x723/0xbe0
[  235.612614][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  235.612614][   T10]      ___sys_sendmsg+0xee/0x170
[  235.612614][   T10]      __sys_sendmsg+0xcd/0x170
[  235.612614][   T10]      do_syscall_64+0xc6/0x1e0
[  235.612614][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  235.612614][   T10] 
[  235.614510][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  235.614788][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  235.614788][   T10]      dst_init+0x84/0x4a0
[  235.614788][   T10]      dst_alloc+0x97/0x150
[  235.614788][   T10]      ip6_dst_alloc+0x23/0x90
[  235.614788][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  235.614788][   T10]      ip6_pol_route+0x56f/0x840
[  235.614788][   T10]      fib6_rule_lookup+0x456/0x630
[  235.614788][   T10]      ip6_route_input+0x59c/0xa50
[  235.614788][   T10]      ipv6_rcv+0x397/0x810
[  235.614788][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  235.614788][   T10]      process_backlog+0x101/0x620
[  235.614788][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  235.614788][   T10]      net_rx_action+0x495/0xbe0
[  235.614788][   T10]      __do_softirq+0x1b5/0x7f6
[  235.614788][   T10] 
[  235.616622][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  235.616622][   T10]      netdev_get_by_index+0x5e/0x80
[  235.616622][   T10]      fib6_nh_init+0x3d8/0x1580
[  235.616622][   T10]      ip6_route_info_create+0xf18/0x17d0
[  235.616622][   T10]      ip6_route_add+0x1c/0x140
[  235.616622][   T10]      addrconf_prefix_route+0x2a6/0x430
[  235.616622][   T10]      inet6_addr_add+0x4f8/0xa40
[  235.616622][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  235.616622][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  235.616622][   T10]      netlink_rcv_skb+0x130/0x360
[  235.616622][   T10]      netlink_unicast+0x449/0x710
[  235.616622][   T10]      netlink_sendmsg+0x723/0xbe0
[  235.616622][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  235.616622][   T10]      ___sys_sendmsg+0xee/0x170
[  235.616622][   T10]      __sys_sendmsg+0xcd/0x170
[  235.616622][   T10]      do_syscall_64+0xc6/0x1e0
[  235.616622][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  235.616622][   T10] 
[  235.618940][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  235.618940][   T10]      netdev_get_by_index+0x5e/0x80
[  235.618940][   T10]      fib6_nh_init+0x3d8/0x1580
[  235.618940][   T10]      ip6_route_info_create+0xf18/0x17d0
[  235.618940][   T10]      addrconf_f6i_alloc+0x315/0x560
[  235.618940][   T10]      ipv6_add_addr+0x411/0x2000
[  235.618940][   T10]      inet6_addr_add+0x30e/0xa40
[  235.618940][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  235.618940][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  235.618940][   T10]      netlink_rcv_skb+0x130/0x360
[  235.618940][   T10]      netlink_unicast+0x449/0x710
[  235.618940][   T10]      netlink_sendmsg+0x723/0xbe0
[  235.618940][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  235.618940][   T10]      ___sys_sendmsg+0xee/0x170
[  235.618940][   T10]      __sys_sendmsg+0xcd/0x170
[  235.618940][   T10]      do_syscall_64+0xc6/0x1e0
[  235.618940][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  235.618940][   T10] 
[  235.621203][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  235.621203][   T10]      netdev_get_by_index+0x5e/0x80
[  235.621203][   T10]      fib6_nh_init+0x3d8/0x1580
[  235.621203][   T10]      ip6_route_info_create+0xf18/0x17d0
[  235.621203][   T10]      ip6_route_add+0x1c/0x140
[  235.621203][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  235.621203][   T10]      addrconf_add_dev+0xe2/0x170
[  235.621203][   T10]      inet6_addr_add+0x12f/0xa40
[  235.621203][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  235.621203][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  235.621203][   T10]      netlink_rcv_skb+0x130/0x360
[  235.621203][   T10]      netlink_unicast+0x449/0x710
[  235.621203][   T10]      netlink_sendmsg+0x723/0xbe0
[  235.621203][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  235.621203][   T10]      ___sys_sendmsg+0xee/0x170
[  235.621203][   T10]      __sys_sendmsg+0xcd/0x170
[  235.621203][   T10]      do_syscall_64+0xc6/0x1e0
[  235.621203][   T10] 
[  235.623431][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  235.623431][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  235.623431][   T10]      ipv6_find_idev+0x102/0x170
[  235.623431][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  235.623431][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  235.623431][   T10]      netlink_rcv_skb+0x130/0x360
[  235.623431][   T10]      netlink_unicast+0x449/0x710
[  235.623431][   T10]      netlink_sendmsg+0x723/0xbe0
[  235.623431][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  235.623431][   T10]      ___sys_sendmsg+0xee/0x170
[  235.623431][   T10]      __sys_sendmsg+0xcd/0x170
[  235.623431][   T10]      do_syscall_64+0xc6/0x1e0
[  235.623431][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  235.623431][   T10] 
[  235.625176][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  235.625176][   T10]      neigh_parms_alloc+0x1e5/0x510
[  235.625176][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  235.625176][   T10]      ipv6_find_idev+0x102/0x170
[  235.625176][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  235.625176][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  235.625176][   T10]      netlink_rcv_skb+0x130/0x360
[  235.625176][   T10]      netlink_unicast+0x449/0x710
[  235.625176][   T10]      netlink_sendmsg+0x723/0xbe0
[  235.625176][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  235.625176][   T10]      ___sys_sendmsg+0xee/0x170
[  235.625176][   T10]      __sys_sendmsg+0xcd/0x170
[  235.625176][   T10]      do_syscall_64+0xc6/0x1e0
[  235.625176][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  235.625176][   T10] 
[  245.689717][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  245.690154][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  245.690154][   T10]      dst_init+0x84/0x4a0
[  245.690154][   T10]      dst_alloc+0x97/0x150
[  245.690154][   T10]      ip6_dst_alloc+0x23/0x90
[  245.690154][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  245.690154][   T10]      ip6_pol_route+0x56f/0x840
[  245.690154][   T10]      fib6_rule_lookup+0x456/0x630
[  245.690154][   T10]      ip6_route_input+0x59c/0xa50
[  245.690154][   T10]      ipv6_rcv+0x397/0x810
[  245.690154][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  245.690154][   T10]      process_backlog+0x101/0x620
[  245.690154][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  245.690154][   T10]      net_rx_action+0x495/0xbe0
[  245.690154][   T10]      __do_softirq+0x1b5/0x7f6
[  245.690154][   T10] 
[  245.692035][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  245.692035][   T10]      netdev_get_by_index+0x5e/0x80
[  245.692035][   T10]      fib6_nh_init+0x3d8/0x1580
[  245.692035][   T10]      ip6_route_info_create+0xf18/0x17d0
[  245.692035][   T10]      ip6_route_add+0x1c/0x140
[  245.692035][   T10]      addrconf_prefix_route+0x2a6/0x430
[  245.692035][   T10]      inet6_addr_add+0x4f8/0xa40
[  245.692035][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  245.692035][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  245.692035][   T10]      netlink_rcv_skb+0x130/0x360
[  245.692035][   T10]      netlink_unicast+0x449/0x710
[  245.692035][   T10]      netlink_sendmsg+0x723/0xbe0
[  245.692035][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  245.692035][   T10]      ___sys_sendmsg+0xee/0x170
[  245.692035][   T10]      __sys_sendmsg+0xcd/0x170
[  245.692035][   T10]      do_syscall_64+0xc6/0x1e0
[  245.692035][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  245.692035][   T10] 
[  245.694322][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  245.694322][   T10]      netdev_get_by_index+0x5e/0x80
[  245.694322][   T10]      fib6_nh_init+0x3d8/0x1580
[  245.694322][   T10]      ip6_route_info_create+0xf18/0x17d0
[  245.694322][   T10]      addrconf_f6i_alloc+0x315/0x560
[  245.694322][   T10]      ipv6_add_addr+0x411/0x2000
[  245.694322][   T10]      inet6_addr_add+0x30e/0xa40
[  245.694322][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  245.694322][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  245.694322][   T10]      netlink_rcv_skb+0x130/0x360
[  245.694322][   T10]      netlink_unicast+0x449/0x710
[  245.694322][   T10]      netlink_sendmsg+0x723/0xbe0
[  245.694322][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  245.694322][   T10]      ___sys_sendmsg+0xee/0x170
[  245.694322][   T10]      __sys_sendmsg+0xcd/0x170
[  245.694322][   T10]      do_syscall_64+0xc6/0x1e0
[  245.694322][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  245.694322][   T10] 
[  245.696725][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  245.696725][   T10]      netdev_get_by_index+0x5e/0x80
[  245.696725][   T10]      fib6_nh_init+0x3d8/0x1580
[  245.696725][   T10]      ip6_route_info_create+0xf18/0x17d0
[  245.696725][   T10]      ip6_route_add+0x1c/0x140
[  245.696725][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  245.696725][   T10]      addrconf_add_dev+0xe2/0x170
[  245.696725][   T10]      inet6_addr_add+0x12f/0xa40
[  245.696725][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  245.696725][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  245.696725][   T10]      netlink_rcv_skb+0x130/0x360
[  245.696725][   T10]      netlink_unicast+0x449/0x710
[  245.696725][   T10]      netlink_sendmsg+0x723/0xbe0
[  245.696725][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  245.696725][   T10]      ___sys_sendmsg+0xee/0x170
[  245.696725][   T10]      __sys_sendmsg+0xcd/0x170
[  245.696725][   T10]      do_syscall_64+0xc6/0x1e0
[  245.696725][   T10] 
[  245.698970][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  245.698970][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  245.698970][   T10]      ipv6_find_idev+0x102/0x170
[  245.698970][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  245.698970][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  245.698970][   T10]      netlink_rcv_skb+0x130/0x360
[  245.698970][   T10]      netlink_unicast+0x449/0x710
[  245.698970][   T10]      netlink_sendmsg+0x723/0xbe0
[  245.698970][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  245.698970][   T10]      ___sys_sendmsg+0xee/0x170
[  245.698970][   T10]      __sys_sendmsg+0xcd/0x170
[  245.698970][   T10]      do_syscall_64+0xc6/0x1e0
[  245.698970][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  245.698970][   T10] 
[  245.700750][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  245.700750][   T10]      neigh_parms_alloc+0x1e5/0x510
[  245.700750][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  245.700750][   T10]      ipv6_find_idev+0x102/0x170
[  245.700750][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  245.700750][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  245.700750][   T10]      netlink_rcv_skb+0x130/0x360
[  245.700750][   T10]      netlink_unicast+0x449/0x710
[  245.700750][   T10]      netlink_sendmsg+0x723/0xbe0
[  245.700750][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  245.700750][   T10]      ___sys_sendmsg+0xee/0x170
[  245.700750][   T10]      __sys_sendmsg+0xcd/0x170
[  245.700750][   T10]      do_syscall_64+0xc6/0x1e0
[  245.700750][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  245.700750][   T10] 
[  245.702689][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  245.702950][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  245.702950][   T10]      dst_init+0x84/0x4a0
[  245.702950][   T10]      dst_alloc+0x97/0x150
[  245.702950][   T10]      ip6_dst_alloc+0x23/0x90
[  245.702950][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  245.702950][   T10]      ip6_pol_route+0x56f/0x840
[  245.702950][   T10]      fib6_rule_lookup+0x456/0x630
[  245.702950][   T10]      ip6_route_input+0x59c/0xa50
[  245.702950][   T10]      ipv6_rcv+0x397/0x810
[  245.702950][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  245.702950][   T10]      process_backlog+0x101/0x620
[  245.702950][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  245.702950][   T10]      net_rx_action+0x495/0xbe0
[  245.702950][   T10]      __do_softirq+0x1b5/0x7f6
[  245.702950][   T10] 
[  245.704828][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  245.704828][   T10]      netdev_get_by_index+0x5e/0x80
[  245.704828][   T10]      fib6_nh_init+0x3d8/0x1580
[  245.704828][   T10]      ip6_route_info_create+0xf18/0x17d0
[  245.704828][   T10]      ip6_route_add+0x1c/0x140
[  245.704828][   T10]      addrconf_prefix_route+0x2a6/0x430
[  245.704828][   T10]      inet6_addr_add+0x4f8/0xa40
[  245.704828][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  245.704828][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  245.704828][   T10]      netlink_rcv_skb+0x130/0x360
[  245.704828][   T10]      netlink_unicast+0x449/0x710
[  245.704828][   T10]      netlink_sendmsg+0x723/0xbe0
[  245.704828][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  245.704828][   T10]      ___sys_sendmsg+0xee/0x170
[  245.704828][   T10]      __sys_sendmsg+0xcd/0x170
[  245.704828][   T10]      do_syscall_64+0xc6/0x1e0
[  245.704828][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  245.704828][   T10] 
[  245.707111][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  245.707111][   T10]      netdev_get_by_index+0x5e/0x80
[  245.707111][   T10]      fib6_nh_init+0x3d8/0x1580
[  245.707111][   T10]      ip6_route_info_create+0xf18/0x17d0
[  245.707111][   T10]      addrconf_f6i_alloc+0x315/0x560
[  245.707111][   T10]      ipv6_add_addr+0x411/0x2000
[  245.707111][   T10]      inet6_addr_add+0x30e/0xa40
[  245.707111][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  245.707111][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  245.707111][   T10]      netlink_rcv_skb+0x130/0x360
[  245.707111][   T10]      netlink_unicast+0x449/0x710
[  245.707111][   T10]      netlink_sendmsg+0x723/0xbe0
[  245.707111][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  245.707111][   T10]      ___sys_sendmsg+0xee/0x170
[  245.707111][   T10]      __sys_sendmsg+0xcd/0x170
[  245.707111][   T10]      do_syscall_64+0xc6/0x1e0
[  245.707111][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  245.707111][   T10] 
[  245.709398][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  245.709398][   T10]      netdev_get_by_index+0x5e/0x80
[  245.709398][   T10]      fib6_nh_init+0x3d8/0x1580
[  245.709398][   T10]      ip6_route_info_create+0xf18/0x17d0
[  245.709398][   T10]      ip6_route_add+0x1c/0x140
[  245.709398][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  245.709398][   T10]      addrconf_add_dev+0xe2/0x170
[  245.709398][   T10]      inet6_addr_add+0x12f/0xa40
[  245.709398][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  245.709398][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  245.709398][   T10]      netlink_rcv_skb+0x130/0x360
[  245.709398][   T10]      netlink_unicast+0x449/0x710
[  245.709398][   T10]      netlink_sendmsg+0x723/0xbe0
[  245.709398][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  245.709398][   T10]      ___sys_sendmsg+0xee/0x170
[  245.709398][   T10]      __sys_sendmsg+0xcd/0x170
[  245.709398][   T10]      do_syscall_64+0xc6/0x1e0
[  245.709398][   T10] 
[  245.711642][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  245.711642][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  245.711642][   T10]      ipv6_find_idev+0x102/0x170
[  245.711642][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  245.711642][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  245.711642][   T10]      netlink_rcv_skb+0x130/0x360
[  245.711642][   T10]      netlink_unicast+0x449/0x710
[  245.711642][   T10]      netlink_sendmsg+0x723/0xbe0
[  245.711642][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  245.711642][   T10]      ___sys_sendmsg+0xee/0x170
[  245.711642][   T10]      __sys_sendmsg+0xcd/0x170
[  245.711642][   T10]      do_syscall_64+0xc6/0x1e0
[  245.711642][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  245.711642][   T10] 
[  245.713401][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  245.713401][   T10]      neigh_parms_alloc+0x1e5/0x510
[  245.713401][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  245.713401][   T10]      ipv6_find_idev+0x102/0x170
[  245.713401][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  245.713401][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  245.713401][   T10]      netlink_rcv_skb+0x130/0x360
[  245.713401][   T10]      netlink_unicast+0x449/0x710
[  245.713401][   T10]      netlink_sendmsg+0x723/0xbe0
[  245.713401][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  245.713401][   T10]      ___sys_sendmsg+0xee/0x170
[  245.713401][   T10]      __sys_sendmsg+0xcd/0x170
[  245.713401][   T10]      do_syscall_64+0xc6/0x1e0
[  245.713401][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  245.713401][   T10] 
[  247.081759][   T42] INFO: task modprobe:376 blocked for more than 122 seconds.
[  247.082263][   T42]       Not tainted 6.8.0-virtme #1
[  247.082414][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  247.082650][   T42] task:modprobe        state:D stack:25648 pid:376   tgid:376   ppid:39     flags:0x00004002
[  247.082977][   T42] Call Trace:
[  247.083094][   T42]  <TASK>
[  247.083185][   T42]  __schedule+0x705/0x1ac0
[  247.083549][   T42]  ? __pfx___schedule+0x10/0x10
[  247.083719][   T42]  ? schedule+0x1a5/0x210
[  247.083832][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  247.083987][   T42]  ? mark_lock+0x38/0x3e0
[  247.084098][   T42]  ? do_raw_spin_lock+0x131/0x270
[  247.084330][   T42]  ? schedule+0x1a5/0x210
[  247.084443][   T42]  schedule+0xdf/0x210
[  247.084558][   T42]  schedule_preempt_disabled+0x15/0x30
[  247.084713][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[  247.084862][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[  247.085043][   T42]  ? kasan_save_stack+0x34/0x50
[  247.085191][   T42]  ? kasan_save_stack+0x24/0x50
[  247.085337][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  247.085490][   T42]  ? lock_acquire+0x1c1/0x220
[  247.085636][   T42]  ? register_pernet_subsys+0x1a/0x50
[  247.085796][   T42]  down_write+0x1c9/0x200
[  247.085908][   T42]  ? __pfx_down_write+0x10/0x10
[  247.086052][   T42]  ? __pfx___lock_release+0x10/0x10
[  247.086202][   T42]  ? __pfx_nf_defrag_init+0x10/0x10 [nf_defrag_ipv4]
[  247.086387][   T42]  register_pernet_subsys+0x1a/0x50
[  247.086533][   T42]  nf_defrag_init+0x19/0xff0 [nf_defrag_ipv4]
[  247.086732][   T42]  do_one_initcall+0xc8/0x3f0
[  247.086881][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[  247.087027][   T42]  ? __create_object+0x5e/0xb0
[  247.087177][   T42]  ? kasan_unpoison+0x27/0x60
[  247.087325][   T42]  do_init_module+0x233/0x740
[  247.087485][   T42]  load_module+0x16b5/0x2350
[  247.087640][   T42]  ? __pfx_load_module+0x10/0x10
[  247.087791][   T42]  ? kernel_read_file+0x3d2/0x520
[  247.087939][   T42]  ? kernel_read_file+0x300/0x520
[  247.088085][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[  247.088240][   T42]  ? init_module_from_file+0xd2/0x130
[  247.088402][   T42]  init_module_from_file+0xd2/0x130
[  247.088546][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[  247.088731][   T42]  ? __lock_release+0x103/0x460
[  247.088878][   T42]  ? idempotent_init_module+0x32a/0x620
[  247.089032][   T42]  ? idempotent_init_module+0x32a/0x620
[  247.089179][   T42]  ? do_raw_spin_unlock+0x58/0x220
[  247.089331][   T42]  idempotent_init_module+0x342/0x620
[  247.089478][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[  247.089688][   T42]  __x64_sys_finit_module+0xbe/0x130
[  247.089836][   T42]  do_syscall_64+0xc6/0x1e0
[  247.089987][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  247.090167][   T42] RIP: 0033:0x7f5fd44b2e5d
[  247.090320][   T42] RSP: 002b:00007ffcc85e8928 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  247.090544][   T42] RAX: ffffffffffffffda RBX: 000055d19cb2e8d0 RCX: 00007f5fd44b2e5d
[  247.090792][   T42] RDX: 0000000000000000 RSI: 000055d18f6a6a2a RDI: 0000000000000000
[  247.091015][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 000055d19cb2dc10
[  247.091239][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055d18f6a6a2a
[  247.091455][   T42] R13: 000055d19cb2e880 R14: 000055d19cb2f710 R15: 0000000000000000
[  247.091694][   T42]  </TASK>
[  247.091809][   T42] 
[  247.091809][   T42] Showing all locks held in the system:
[  247.092029][   T42] 3 locks held by kworker/u16:0/10:
[  247.092174][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  247.092503][   T42]  #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  247.092765][   T42]  #2: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[  247.093016][   T42] 2 locks held by kworker/u20:0/39:
[  247.093157][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  247.093445][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  247.093766][   T42] 1 lock held by khungtaskd/42:
[  247.093903][   T42]  #0: ffffffff9b5591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[  247.094156][   T42] 1 lock held by modprobe/376:
[  247.094292][   T42]  #0: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[  247.094577][   T42] 
[  247.094650][   T42] =============================================
[  247.094650][   T42] 
[  255.953692][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  255.954137][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  255.954137][   T10]      dst_init+0x84/0x4a0
[  255.954137][   T10]      dst_alloc+0x97/0x150
[  255.954137][   T10]      ip6_dst_alloc+0x23/0x90
[  255.954137][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  255.954137][   T10]      ip6_pol_route+0x56f/0x840
[  255.954137][   T10]      fib6_rule_lookup+0x456/0x630
[  255.954137][   T10]      ip6_route_input+0x59c/0xa50
[  255.954137][   T10]      ipv6_rcv+0x397/0x810
[  255.954137][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  255.954137][   T10]      process_backlog+0x101/0x620
[  255.954137][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  255.954137][   T10]      net_rx_action+0x495/0xbe0
[  255.954137][   T10]      __do_softirq+0x1b5/0x7f6
[  255.954137][   T10] 
[  255.956058][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  255.956058][   T10]      netdev_get_by_index+0x5e/0x80
[  255.956058][   T10]      fib6_nh_init+0x3d8/0x1580
[  255.956058][   T10]      ip6_route_info_create+0xf18/0x17d0
[  255.956058][   T10]      ip6_route_add+0x1c/0x140
[  255.956058][   T10]      addrconf_prefix_route+0x2a6/0x430
[  255.956058][   T10]      inet6_addr_add+0x4f8/0xa40
[  255.956058][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  255.956058][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  255.956058][   T10]      netlink_rcv_skb+0x130/0x360
[  255.956058][   T10]      netlink_unicast+0x449/0x710
[  255.956058][   T10]      netlink_sendmsg+0x723/0xbe0
[  255.956058][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  255.956058][   T10]      ___sys_sendmsg+0xee/0x170
[  255.956058][   T10]      __sys_sendmsg+0xcd/0x170
[  255.956058][   T10]      do_syscall_64+0xc6/0x1e0
[  255.956058][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  255.956058][   T10] 
[  255.958347][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  255.958347][   T10]      netdev_get_by_index+0x5e/0x80
[  255.958347][   T10]      fib6_nh_init+0x3d8/0x1580
[  255.958347][   T10]      ip6_route_info_create+0xf18/0x17d0
[  255.958347][   T10]      addrconf_f6i_alloc+0x315/0x560
[  255.958347][   T10]      ipv6_add_addr+0x411/0x2000
[  255.958347][   T10]      inet6_addr_add+0x30e/0xa40
[  255.958347][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  255.958347][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  255.958347][   T10]      netlink_rcv_skb+0x130/0x360
[  255.958347][   T10]      netlink_unicast+0x449/0x710
[  255.958347][   T10]      netlink_sendmsg+0x723/0xbe0
[  255.958347][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  255.958347][   T10]      ___sys_sendmsg+0xee/0x170
[  255.958347][   T10]      __sys_sendmsg+0xcd/0x170
[  255.958347][   T10]      do_syscall_64+0xc6/0x1e0
[  255.958347][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  255.958347][   T10] 
[  255.960620][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  255.960620][   T10]      netdev_get_by_index+0x5e/0x80
[  255.960620][   T10]      fib6_nh_init+0x3d8/0x1580
[  255.960620][   T10]      ip6_route_info_create+0xf18/0x17d0
[  255.960620][   T10]      ip6_route_add+0x1c/0x140
[  255.960620][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  255.960620][   T10]      addrconf_add_dev+0xe2/0x170
[  255.960620][   T10]      inet6_addr_add+0x12f/0xa40
[  255.960620][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  255.960620][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  255.960620][   T10]      netlink_rcv_skb+0x130/0x360
[  255.960620][   T10]      netlink_unicast+0x449/0x710
[  255.960620][   T10]      netlink_sendmsg+0x723/0xbe0
[  255.960620][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  255.960620][   T10]      ___sys_sendmsg+0xee/0x170
[  255.960620][   T10]      __sys_sendmsg+0xcd/0x170
[  255.960620][   T10]      do_syscall_64+0xc6/0x1e0
[  255.960620][   T10] 
[  255.962862][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  255.962862][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  255.962862][   T10]      ipv6_find_idev+0x102/0x170
[  255.962862][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  255.962862][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  255.962862][   T10]      netlink_rcv_skb+0x130/0x360
[  255.962862][   T10]      netlink_unicast+0x449/0x710
[  255.962862][   T10]      netlink_sendmsg+0x723/0xbe0
[  255.962862][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  255.962862][   T10]      ___sys_sendmsg+0xee/0x170
[  255.962862][   T10]      __sys_sendmsg+0xcd/0x170
[  255.962862][   T10]      do_syscall_64+0xc6/0x1e0
[  255.962862][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  255.962862][   T10] 
[  255.964618][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  255.964618][   T10]      neigh_parms_alloc+0x1e5/0x510
[  255.964618][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  255.964618][   T10]      ipv6_find_idev+0x102/0x170
[  255.964618][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  255.964618][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  255.964618][   T10]      netlink_rcv_skb+0x130/0x360
[  255.964618][   T10]      netlink_unicast+0x449/0x710
[  255.964618][   T10]      netlink_sendmsg+0x723/0xbe0
[  255.964618][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  255.964618][   T10]      ___sys_sendmsg+0xee/0x170
[  255.964618][   T10]      __sys_sendmsg+0xcd/0x170
[  255.964618][   T10]      do_syscall_64+0xc6/0x1e0
[  255.964618][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  255.964618][   T10] 
[  255.966533][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  255.966805][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  255.966805][   T10]      dst_init+0x84/0x4a0
[  255.966805][   T10]      dst_alloc+0x97/0x150
[  255.966805][   T10]      ip6_dst_alloc+0x23/0x90
[  255.966805][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  255.966805][   T10]      ip6_pol_route+0x56f/0x840
[  255.966805][   T10]      fib6_rule_lookup+0x456/0x630
[  255.966805][   T10]      ip6_route_input+0x59c/0xa50
[  255.966805][   T10]      ipv6_rcv+0x397/0x810
[  255.966805][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  255.966805][   T10]      process_backlog+0x101/0x620
[  255.966805][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  255.966805][   T10]      net_rx_action+0x495/0xbe0
[  255.966805][   T10]      __do_softirq+0x1b5/0x7f6
[  255.966805][   T10] 
[  255.968696][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  255.968696][   T10]      netdev_get_by_index+0x5e/0x80
[  255.968696][   T10]      fib6_nh_init+0x3d8/0x1580
[  255.968696][   T10]      ip6_route_info_create+0xf18/0x17d0
[  255.968696][   T10]      ip6_route_add+0x1c/0x140
[  255.968696][   T10]      addrconf_prefix_route+0x2a6/0x430
[  255.968696][   T10]      inet6_addr_add+0x4f8/0xa40
[  255.968696][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  255.968696][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  255.968696][   T10]      netlink_rcv_skb+0x130/0x360
[  255.968696][   T10]      netlink_unicast+0x449/0x710
[  255.968696][   T10]      netlink_sendmsg+0x723/0xbe0
[  255.968696][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  255.968696][   T10]      ___sys_sendmsg+0xee/0x170
[  255.968696][   T10]      __sys_sendmsg+0xcd/0x170
[  255.968696][   T10]      do_syscall_64+0xc6/0x1e0
[  255.968696][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  255.968696][   T10] 
[  255.970985][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  255.970985][   T10]      netdev_get_by_index+0x5e/0x80
[  255.970985][   T10]      fib6_nh_init+0x3d8/0x1580
[  255.970985][   T10]      ip6_route_info_create+0xf18/0x17d0
[  255.970985][   T10]      addrconf_f6i_alloc+0x315/0x560
[  255.970985][   T10]      ipv6_add_addr+0x411/0x2000
[  255.970985][   T10]      inet6_addr_add+0x30e/0xa40
[  255.970985][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  255.970985][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  255.970985][   T10]      netlink_rcv_skb+0x130/0x360
[  255.970985][   T10]      netlink_unicast+0x449/0x710
[  255.970985][   T10]      netlink_sendmsg+0x723/0xbe0
[  255.970985][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  255.970985][   T10]      ___sys_sendmsg+0xee/0x170
[  255.970985][   T10]      __sys_sendmsg+0xcd/0x170
[  255.970985][   T10]      do_syscall_64+0xc6/0x1e0
[  255.970985][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  255.970985][   T10] 
[  255.973252][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  255.973252][   T10]      netdev_get_by_index+0x5e/0x80
[  255.973252][   T10]      fib6_nh_init+0x3d8/0x1580
[  255.973252][   T10]      ip6_route_info_create+0xf18/0x17d0
[  255.973252][   T10]      ip6_route_add+0x1c/0x140
[  255.973252][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  255.973252][   T10]      addrconf_add_dev+0xe2/0x170
[  255.973252][   T10]      inet6_addr_add+0x12f/0xa40
[  255.973252][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  255.973252][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  255.973252][   T10]      netlink_rcv_skb+0x130/0x360
[  255.973252][   T10]      netlink_unicast+0x449/0x710
[  255.973252][   T10]      netlink_sendmsg+0x723/0xbe0
[  255.973252][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  255.973252][   T10]      ___sys_sendmsg+0xee/0x170
[  255.973252][   T10]      __sys_sendmsg+0xcd/0x170
[  255.973252][   T10]      do_syscall_64+0xc6/0x1e0
[  255.973252][   T10] 
[  255.975478][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  255.975478][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  255.975478][   T10]      ipv6_find_idev+0x102/0x170
[  255.975478][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  255.975478][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  255.975478][   T10]      netlink_rcv_skb+0x130/0x360
[  255.975478][   T10]      netlink_unicast+0x449/0x710
[  255.975478][   T10]      netlink_sendmsg+0x723/0xbe0
[  255.975478][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  255.975478][   T10]      ___sys_sendmsg+0xee/0x170
[  255.975478][   T10]      __sys_sendmsg+0xcd/0x170
[  255.975478][   T10]      do_syscall_64+0xc6/0x1e0
[  255.975478][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  255.975478][   T10] 
[  255.977408][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  255.977408][   T10]      neigh_parms_alloc+0x1e5/0x510
[  255.977408][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  255.977408][   T10]      ipv6_find_idev+0x102/0x170
[  255.977408][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  255.977408][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  255.977408][   T10]      netlink_rcv_skb+0x130/0x360
[  255.977408][   T10]      netlink_unicast+0x449/0x710
[  255.977408][   T10]      netlink_sendmsg+0x723/0xbe0
[  255.977408][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  255.977408][   T10]      ___sys_sendmsg+0xee/0x170
[  255.977408][   T10]      __sys_sendmsg+0xcd/0x170
[  255.977408][   T10]      do_syscall_64+0xc6/0x1e0
[  255.977408][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  255.977408][   T10] 
[  266.217725][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  266.218179][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  266.218179][   T10]      dst_init+0x84/0x4a0
[  266.218179][   T10]      dst_alloc+0x97/0x150
[  266.218179][   T10]      ip6_dst_alloc+0x23/0x90
[  266.218179][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  266.218179][   T10]      ip6_pol_route+0x56f/0x840
[  266.218179][   T10]      fib6_rule_lookup+0x456/0x630
[  266.218179][   T10]      ip6_route_input+0x59c/0xa50
[  266.218179][   T10]      ipv6_rcv+0x397/0x810
[  266.218179][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  266.218179][   T10]      process_backlog+0x101/0x620
[  266.218179][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  266.218179][   T10]      net_rx_action+0x495/0xbe0
[  266.218179][   T10]      __do_softirq+0x1b5/0x7f6
[  266.218179][   T10] 
[  266.220071][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  266.220071][   T10]      netdev_get_by_index+0x5e/0x80
[  266.220071][   T10]      fib6_nh_init+0x3d8/0x1580
[  266.220071][   T10]      ip6_route_info_create+0xf18/0x17d0
[  266.220071][   T10]      ip6_route_add+0x1c/0x140
[  266.220071][   T10]      addrconf_prefix_route+0x2a6/0x430
[  266.220071][   T10]      inet6_addr_add+0x4f8/0xa40
[  266.220071][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  266.220071][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  266.220071][   T10]      netlink_rcv_skb+0x130/0x360
[  266.220071][   T10]      netlink_unicast+0x449/0x710
[  266.220071][   T10]      netlink_sendmsg+0x723/0xbe0
[  266.220071][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  266.220071][   T10]      ___sys_sendmsg+0xee/0x170
[  266.220071][   T10]      __sys_sendmsg+0xcd/0x170
[  266.220071][   T10]      do_syscall_64+0xc6/0x1e0
[  266.220071][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  266.220071][   T10] 
[  266.222379][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  266.222379][   T10]      netdev_get_by_index+0x5e/0x80
[  266.222379][   T10]      fib6_nh_init+0x3d8/0x1580
[  266.222379][   T10]      ip6_route_info_create+0xf18/0x17d0
[  266.222379][   T10]      addrconf_f6i_alloc+0x315/0x560
[  266.222379][   T10]      ipv6_add_addr+0x411/0x2000
[  266.222379][   T10]      inet6_addr_add+0x30e/0xa40
[  266.222379][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  266.222379][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  266.222379][   T10]      netlink_rcv_skb+0x130/0x360
[  266.222379][   T10]      netlink_unicast+0x449/0x710
[  266.222379][   T10]      netlink_sendmsg+0x723/0xbe0
[  266.222379][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  266.222379][   T10]      ___sys_sendmsg+0xee/0x170
[  266.222379][   T10]      __sys_sendmsg+0xcd/0x170
[  266.222379][   T10]      do_syscall_64+0xc6/0x1e0
[  266.222379][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  266.222379][   T10] 
[  266.224655][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  266.224655][   T10]      netdev_get_by_index+0x5e/0x80
[  266.224655][   T10]      fib6_nh_init+0x3d8/0x1580
[  266.224655][   T10]      ip6_route_info_create+0xf18/0x17d0
[  266.224655][   T10]      ip6_route_add+0x1c/0x140
[  266.224655][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  266.224655][   T10]      addrconf_add_dev+0xe2/0x170
[  266.224655][   T10]      inet6_addr_add+0x12f/0xa40
[  266.224655][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  266.224655][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  266.224655][   T10]      netlink_rcv_skb+0x130/0x360
[  266.224655][   T10]      netlink_unicast+0x449/0x710
[  266.224655][   T10]      netlink_sendmsg+0x723/0xbe0
[  266.224655][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  266.224655][   T10]      ___sys_sendmsg+0xee/0x170
[  266.224655][   T10]      __sys_sendmsg+0xcd/0x170
[  266.224655][   T10]      do_syscall_64+0xc6/0x1e0
[  266.224655][   T10] 
[  266.226893][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  266.226893][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  266.226893][   T10]      ipv6_find_idev+0x102/0x170
[  266.226893][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  266.226893][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  266.226893][   T10]      netlink_rcv_skb+0x130/0x360
[  266.226893][   T10]      netlink_unicast+0x449/0x710
[  266.226893][   T10]      netlink_sendmsg+0x723/0xbe0
[  266.226893][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  266.226893][   T10]      ___sys_sendmsg+0xee/0x170
[  266.226893][   T10]      __sys_sendmsg+0xcd/0x170
[  266.226893][   T10]      do_syscall_64+0xc6/0x1e0
[  266.226893][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  266.226893][   T10] 
[  266.228650][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  266.228650][   T10]      neigh_parms_alloc+0x1e5/0x510
[  266.228650][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  266.228650][   T10]      ipv6_find_idev+0x102/0x170
[  266.228650][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  266.228650][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  266.228650][   T10]      netlink_rcv_skb+0x130/0x360
[  266.228650][   T10]      netlink_unicast+0x449/0x710
[  266.228650][   T10]      netlink_sendmsg+0x723/0xbe0
[  266.228650][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  266.228650][   T10]      ___sys_sendmsg+0xee/0x170
[  266.228650][   T10]      __sys_sendmsg+0xcd/0x170
[  266.228650][   T10]      do_syscall_64+0xc6/0x1e0
[  266.228650][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  266.228650][   T10] 
[  266.230574][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  266.230861][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  266.230861][   T10]      dst_init+0x84/0x4a0
[  266.230861][   T10]      dst_alloc+0x97/0x150
[  266.230861][   T10]      ip6_dst_alloc+0x23/0x90
[  266.230861][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  266.230861][   T10]      ip6_pol_route+0x56f/0x840
[  266.230861][   T10]      fib6_rule_lookup+0x456/0x630
[  266.230861][   T10]      ip6_route_input+0x59c/0xa50
[  266.230861][   T10]      ipv6_rcv+0x397/0x810
[  266.230861][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  266.230861][   T10]      process_backlog+0x101/0x620
[  266.230861][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  266.230861][   T10]      net_rx_action+0x495/0xbe0
[  266.230861][   T10]      __do_softirq+0x1b5/0x7f6
[  266.230861][   T10] 
[  266.232728][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  266.232728][   T10]      netdev_get_by_index+0x5e/0x80
[  266.232728][   T10]      fib6_nh_init+0x3d8/0x1580
[  266.232728][   T10]      ip6_route_info_create+0xf18/0x17d0
[  266.232728][   T10]      ip6_route_add+0x1c/0x140
[  266.232728][   T10]      addrconf_prefix_route+0x2a6/0x430
[  266.232728][   T10]      inet6_addr_add+0x4f8/0xa40
[  266.232728][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  266.232728][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  266.232728][   T10]      netlink_rcv_skb+0x130/0x360
[  266.232728][   T10]      netlink_unicast+0x449/0x710
[  266.232728][   T10]      netlink_sendmsg+0x723/0xbe0
[  266.232728][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  266.232728][   T10]      ___sys_sendmsg+0xee/0x170
[  266.232728][   T10]      __sys_sendmsg+0xcd/0x170
[  266.232728][   T10]      do_syscall_64+0xc6/0x1e0
[  266.232728][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  266.232728][   T10] 
[  266.235031][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  266.235031][   T10]      netdev_get_by_index+0x5e/0x80
[  266.235031][   T10]      fib6_nh_init+0x3d8/0x1580
[  266.235031][   T10]      ip6_route_info_create+0xf18/0x17d0
[  266.235031][   T10]      addrconf_f6i_alloc+0x315/0x560
[  266.235031][   T10]      ipv6_add_addr+0x411/0x2000
[  266.235031][   T10]      inet6_addr_add+0x30e/0xa40
[  266.235031][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  266.235031][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  266.235031][   T10]      netlink_rcv_skb+0x130/0x360
[  266.235031][   T10]      netlink_unicast+0x449/0x710
[  266.235031][   T10]      netlink_sendmsg+0x723/0xbe0
[  266.235031][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  266.235031][   T10]      ___sys_sendmsg+0xee/0x170
[  266.235031][   T10]      __sys_sendmsg+0xcd/0x170
[  266.235031][   T10]      do_syscall_64+0xc6/0x1e0
[  266.235031][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  266.235031][   T10] 
[  266.237346][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  266.237346][   T10]      netdev_get_by_index+0x5e/0x80
[  266.237346][   T10]      fib6_nh_init+0x3d8/0x1580
[  266.237346][   T10]      ip6_route_info_create+0xf18/0x17d0
[  266.237346][   T10]      ip6_route_add+0x1c/0x140
[  266.237346][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  266.237346][   T10]      addrconf_add_dev+0xe2/0x170
[  266.237346][   T10]      inet6_addr_add+0x12f/0xa40
[  266.237346][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  266.237346][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  266.237346][   T10]      netlink_rcv_skb+0x130/0x360
[  266.237346][   T10]      netlink_unicast+0x449/0x710
[  266.237346][   T10]      netlink_sendmsg+0x723/0xbe0
[  266.237346][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  266.237346][   T10]      ___sys_sendmsg+0xee/0x170
[  266.237346][   T10]      __sys_sendmsg+0xcd/0x170
[  266.237346][   T10]      do_syscall_64+0xc6/0x1e0
[  266.237346][   T10] 
[  266.239612][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  266.239612][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  266.239612][   T10]      ipv6_find_idev+0x102/0x170
[  266.239612][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  266.239612][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  266.239612][   T10]      netlink_rcv_skb+0x130/0x360
[  266.239612][   T10]      netlink_unicast+0x449/0x710
[  266.239612][   T10]      netlink_sendmsg+0x723/0xbe0
[  266.239612][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  266.239612][   T10]      ___sys_sendmsg+0xee/0x170
[  266.239612][   T10]      __sys_sendmsg+0xcd/0x170
[  266.239612][   T10]      do_syscall_64+0xc6/0x1e0
[  266.239612][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  266.239612][   T10] 
[  266.241367][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  266.241367][   T10]      neigh_parms_alloc+0x1e5/0x510
[  266.241367][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  266.241367][   T10]      ipv6_find_idev+0x102/0x170
[  266.241367][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  266.241367][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  266.241367][   T10]      netlink_rcv_skb+0x130/0x360
[  266.241367][   T10]      netlink_unicast+0x449/0x710
[  266.241367][   T10]      netlink_sendmsg+0x723/0xbe0
[  266.241367][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  266.241367][   T10]      ___sys_sendmsg+0xee/0x170
[  266.241367][   T10]      __sys_sendmsg+0xcd/0x170
[  266.241367][   T10]      do_syscall_64+0xc6/0x1e0
[  266.241367][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  266.241367][   T10] 
[  276.481880][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  276.482313][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  276.482313][   T10]      dst_init+0x84/0x4a0
[  276.482313][   T10]      dst_alloc+0x97/0x150
[  276.482313][   T10]      ip6_dst_alloc+0x23/0x90
[  276.482313][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  276.482313][   T10]      ip6_pol_route+0x56f/0x840
[  276.482313][   T10]      fib6_rule_lookup+0x456/0x630
[  276.482313][   T10]      ip6_route_input+0x59c/0xa50
[  276.482313][   T10]      ipv6_rcv+0x397/0x810
[  276.482313][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  276.482313][   T10]      process_backlog+0x101/0x620
[  276.482313][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  276.482313][   T10]      net_rx_action+0x495/0xbe0
[  276.482313][   T10]      __do_softirq+0x1b5/0x7f6
[  276.482313][   T10] 
[  276.484199][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  276.484199][   T10]      netdev_get_by_index+0x5e/0x80
[  276.484199][   T10]      fib6_nh_init+0x3d8/0x1580
[  276.484199][   T10]      ip6_route_info_create+0xf18/0x17d0
[  276.484199][   T10]      ip6_route_add+0x1c/0x140
[  276.484199][   T10]      addrconf_prefix_route+0x2a6/0x430
[  276.484199][   T10]      inet6_addr_add+0x4f8/0xa40
[  276.484199][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  276.484199][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  276.484199][   T10]      netlink_rcv_skb+0x130/0x360
[  276.484199][   T10]      netlink_unicast+0x449/0x710
[  276.484199][   T10]      netlink_sendmsg+0x723/0xbe0
[  276.484199][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  276.484199][   T10]      ___sys_sendmsg+0xee/0x170
[  276.484199][   T10]      __sys_sendmsg+0xcd/0x170
[  276.484199][   T10]      do_syscall_64+0xc6/0x1e0
[  276.484199][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  276.484199][   T10] 
[  276.486476][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  276.486476][   T10]      netdev_get_by_index+0x5e/0x80
[  276.486476][   T10]      fib6_nh_init+0x3d8/0x1580
[  276.486476][   T10]      ip6_route_info_create+0xf18/0x17d0
[  276.486476][   T10]      addrconf_f6i_alloc+0x315/0x560
[  276.486476][   T10]      ipv6_add_addr+0x411/0x2000
[  276.486476][   T10]      inet6_addr_add+0x30e/0xa40
[  276.486476][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  276.486476][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  276.486476][   T10]      netlink_rcv_skb+0x130/0x360
[  276.486476][   T10]      netlink_unicast+0x449/0x710
[  276.486476][   T10]      netlink_sendmsg+0x723/0xbe0
[  276.486476][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  276.486476][   T10]      ___sys_sendmsg+0xee/0x170
[  276.486476][   T10]      __sys_sendmsg+0xcd/0x170
[  276.486476][   T10]      do_syscall_64+0xc6/0x1e0
[  276.486476][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  276.486476][   T10] 
[  276.488739][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  276.488739][   T10]      netdev_get_by_index+0x5e/0x80
[  276.488739][   T10]      fib6_nh_init+0x3d8/0x1580
[  276.488739][   T10]      ip6_route_info_create+0xf18/0x17d0
[  276.488739][   T10]      ip6_route_add+0x1c/0x140
[  276.488739][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  276.488739][   T10]      addrconf_add_dev+0xe2/0x170
[  276.488739][   T10]      inet6_addr_add+0x12f/0xa40
[  276.488739][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  276.488739][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  276.488739][   T10]      netlink_rcv_skb+0x130/0x360
[  276.488739][   T10]      netlink_unicast+0x449/0x710
[  276.488739][   T10]      netlink_sendmsg+0x723/0xbe0
[  276.488739][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  276.488739][   T10]      ___sys_sendmsg+0xee/0x170
[  276.488739][   T10]      __sys_sendmsg+0xcd/0x170
[  276.488739][   T10]      do_syscall_64+0xc6/0x1e0
[  276.488739][   T10] 
[  276.490963][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  276.490963][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  276.490963][   T10]      ipv6_find_idev+0x102/0x170
[  276.490963][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  276.490963][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  276.490963][   T10]      netlink_rcv_skb+0x130/0x360
[  276.490963][   T10]      netlink_unicast+0x449/0x710
[  276.490963][   T10]      netlink_sendmsg+0x723/0xbe0
[  276.490963][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  276.490963][   T10]      ___sys_sendmsg+0xee/0x170
[  276.490963][   T10]      __sys_sendmsg+0xcd/0x170
[  276.490963][   T10]      do_syscall_64+0xc6/0x1e0
[  276.490963][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  276.490963][   T10] 
[  276.492705][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  276.492705][   T10]      neigh_parms_alloc+0x1e5/0x510
[  276.492705][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  276.492705][   T10]      ipv6_find_idev+0x102/0x170
[  276.492705][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  276.492705][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  276.492705][   T10]      netlink_rcv_skb+0x130/0x360
[  276.492705][   T10]      netlink_unicast+0x449/0x710
[  276.492705][   T10]      netlink_sendmsg+0x723/0xbe0
[  276.492705][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  276.492705][   T10]      ___sys_sendmsg+0xee/0x170
[  276.492705][   T10]      __sys_sendmsg+0xcd/0x170
[  276.492705][   T10]      do_syscall_64+0xc6/0x1e0
[  276.492705][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  276.492705][   T10] 
[  276.494598][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  276.494874][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  276.494874][   T10]      dst_init+0x84/0x4a0
[  276.494874][   T10]      dst_alloc+0x97/0x150
[  276.494874][   T10]      ip6_dst_alloc+0x23/0x90
[  276.494874][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  276.494874][   T10]      ip6_pol_route+0x56f/0x840
[  276.494874][   T10]      fib6_rule_lookup+0x456/0x630
[  276.494874][   T10]      ip6_route_input+0x59c/0xa50
[  276.494874][   T10]      ipv6_rcv+0x397/0x810
[  276.494874][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  276.494874][   T10]      process_backlog+0x101/0x620
[  276.494874][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  276.494874][   T10]      net_rx_action+0x495/0xbe0
[  276.494874][   T10]      __do_softirq+0x1b5/0x7f6
[  276.494874][   T10] 
[  276.496730][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  276.496730][   T10]      netdev_get_by_index+0x5e/0x80
[  276.496730][   T10]      fib6_nh_init+0x3d8/0x1580
[  276.496730][   T10]      ip6_route_info_create+0xf18/0x17d0
[  276.496730][   T10]      ip6_route_add+0x1c/0x140
[  276.496730][   T10]      addrconf_prefix_route+0x2a6/0x430
[  276.496730][   T10]      inet6_addr_add+0x4f8/0xa40
[  276.496730][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  276.496730][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  276.496730][   T10]      netlink_rcv_skb+0x130/0x360
[  276.496730][   T10]      netlink_unicast+0x449/0x710
[  276.496730][   T10]      netlink_sendmsg+0x723/0xbe0
[  276.496730][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  276.496730][   T10]      ___sys_sendmsg+0xee/0x170
[  276.496730][   T10]      __sys_sendmsg+0xcd/0x170
[  276.496730][   T10]      do_syscall_64+0xc6/0x1e0
[  276.496730][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  276.496730][   T10] 
[  276.498959][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  276.498959][   T10]      netdev_get_by_index+0x5e/0x80
[  276.498959][   T10]      fib6_nh_init+0x3d8/0x1580
[  276.498959][   T10]      ip6_route_info_create+0xf18/0x17d0
[  276.498959][   T10]      addrconf_f6i_alloc+0x315/0x560
[  276.498959][   T10]      ipv6_add_addr+0x411/0x2000
[  276.498959][   T10]      inet6_addr_add+0x30e/0xa40
[  276.498959][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  276.498959][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  276.498959][   T10]      netlink_rcv_skb+0x130/0x360
[  276.498959][   T10]      netlink_unicast+0x449/0x710
[  276.498959][   T10]      netlink_sendmsg+0x723/0xbe0
[  276.498959][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  276.498959][   T10]      ___sys_sendmsg+0xee/0x170
[  276.498959][   T10]      __sys_sendmsg+0xcd/0x170
[  276.498959][   T10]      do_syscall_64+0xc6/0x1e0
[  276.498959][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  276.498959][   T10] 
[  276.501211][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  276.501211][   T10]      netdev_get_by_index+0x5e/0x80
[  276.501211][   T10]      fib6_nh_init+0x3d8/0x1580
[  276.501211][   T10]      ip6_route_info_create+0xf18/0x17d0
[  276.501211][   T10]      ip6_route_add+0x1c/0x140
[  276.501211][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  276.501211][   T10]      addrconf_add_dev+0xe2/0x170
[  276.501211][   T10]      inet6_addr_add+0x12f/0xa40
[  276.501211][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  276.501211][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  276.501211][   T10]      netlink_rcv_skb+0x130/0x360
[  276.501211][   T10]      netlink_unicast+0x449/0x710
[  276.501211][   T10]      netlink_sendmsg+0x723/0xbe0
[  276.501211][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  276.501211][   T10]      ___sys_sendmsg+0xee/0x170
[  276.501211][   T10]      __sys_sendmsg+0xcd/0x170
[  276.501211][   T10]      do_syscall_64+0xc6/0x1e0
[  276.501211][   T10] 
[  276.503441][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  276.503441][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  276.503441][   T10]      ipv6_find_idev+0x102/0x170
[  276.503441][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  276.503441][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  276.503441][   T10]      netlink_rcv_skb+0x130/0x360
[  276.503441][   T10]      netlink_unicast+0x449/0x710
[  276.503441][   T10]      netlink_sendmsg+0x723/0xbe0
[  276.503441][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  276.503441][   T10]      ___sys_sendmsg+0xee/0x170
[  276.503441][   T10]      __sys_sendmsg+0xcd/0x170
[  276.503441][   T10]      do_syscall_64+0xc6/0x1e0
[  276.503441][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  276.503441][   T10] 
[  276.505180][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  276.505180][   T10]      neigh_parms_alloc+0x1e5/0x510
[  276.505180][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  276.505180][   T10]      ipv6_find_idev+0x102/0x170
[  276.505180][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  276.505180][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  276.505180][   T10]      netlink_rcv_skb+0x130/0x360
[  276.505180][   T10]      netlink_unicast+0x449/0x710
[  276.505180][   T10]      netlink_sendmsg+0x723/0xbe0
[  276.505180][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  276.505180][   T10]      ___sys_sendmsg+0xee/0x170
[  276.505180][   T10]      __sys_sendmsg+0xcd/0x170
[  276.505180][   T10]      do_syscall_64+0xc6/0x1e0
[  276.505180][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  276.505180][   T10] 
[  286.745865][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  286.746313][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  286.746313][   T10]      dst_init+0x84/0x4a0
[  286.746313][   T10]      dst_alloc+0x97/0x150
[  286.746313][   T10]      ip6_dst_alloc+0x23/0x90
[  286.746313][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  286.746313][   T10]      ip6_pol_route+0x56f/0x840
[  286.746313][   T10]      fib6_rule_lookup+0x456/0x630
[  286.746313][   T10]      ip6_route_input+0x59c/0xa50
[  286.746313][   T10]      ipv6_rcv+0x397/0x810
[  286.746313][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  286.746313][   T10]      process_backlog+0x101/0x620
[  286.746313][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  286.746313][   T10]      net_rx_action+0x495/0xbe0
[  286.746313][   T10]      __do_softirq+0x1b5/0x7f6
[  286.746313][   T10] 
[  286.748190][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  286.748190][   T10]      netdev_get_by_index+0x5e/0x80
[  286.748190][   T10]      fib6_nh_init+0x3d8/0x1580
[  286.748190][   T10]      ip6_route_info_create+0xf18/0x17d0
[  286.748190][   T10]      ip6_route_add+0x1c/0x140
[  286.748190][   T10]      addrconf_prefix_route+0x2a6/0x430
[  286.748190][   T10]      inet6_addr_add+0x4f8/0xa40
[  286.748190][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  286.748190][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  286.748190][   T10]      netlink_rcv_skb+0x130/0x360
[  286.748190][   T10]      netlink_unicast+0x449/0x710
[  286.748190][   T10]      netlink_sendmsg+0x723/0xbe0
[  286.748190][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  286.748190][   T10]      ___sys_sendmsg+0xee/0x170
[  286.748190][   T10]      __sys_sendmsg+0xcd/0x170
[  286.748190][   T10]      do_syscall_64+0xc6/0x1e0
[  286.748190][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  286.748190][   T10] 
[  286.750460][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  286.750460][   T10]      netdev_get_by_index+0x5e/0x80
[  286.750460][   T10]      fib6_nh_init+0x3d8/0x1580
[  286.750460][   T10]      ip6_route_info_create+0xf18/0x17d0
[  286.750460][   T10]      addrconf_f6i_alloc+0x315/0x560
[  286.750460][   T10]      ipv6_add_addr+0x411/0x2000
[  286.750460][   T10]      inet6_addr_add+0x30e/0xa40
[  286.750460][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  286.750460][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  286.750460][   T10]      netlink_rcv_skb+0x130/0x360
[  286.750460][   T10]      netlink_unicast+0x449/0x710
[  286.750460][   T10]      netlink_sendmsg+0x723/0xbe0
[  286.750460][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  286.750460][   T10]      ___sys_sendmsg+0xee/0x170
[  286.750460][   T10]      __sys_sendmsg+0xcd/0x170
[  286.750460][   T10]      do_syscall_64+0xc6/0x1e0
[  286.750460][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  286.750460][   T10] 
[  286.752736][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  286.752736][   T10]      netdev_get_by_index+0x5e/0x80
[  286.752736][   T10]      fib6_nh_init+0x3d8/0x1580
[  286.752736][   T10]      ip6_route_info_create+0xf18/0x17d0
[  286.752736][   T10]      ip6_route_add+0x1c/0x140
[  286.752736][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  286.752736][   T10]      addrconf_add_dev+0xe2/0x170
[  286.752736][   T10]      inet6_addr_add+0x12f/0xa40
[  286.752736][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  286.752736][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  286.752736][   T10]      netlink_rcv_skb+0x130/0x360
[  286.752736][   T10]      netlink_unicast+0x449/0x710
[  286.752736][   T10]      netlink_sendmsg+0x723/0xbe0
[  286.752736][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  286.752736][   T10]      ___sys_sendmsg+0xee/0x170
[  286.752736][   T10]      __sys_sendmsg+0xcd/0x170
[  286.752736][   T10]      do_syscall_64+0xc6/0x1e0
[  286.752736][   T10] 
[  286.754956][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  286.754956][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  286.754956][   T10]      ipv6_find_idev+0x102/0x170
[  286.754956][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  286.754956][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  286.754956][   T10]      netlink_rcv_skb+0x130/0x360
[  286.754956][   T10]      netlink_unicast+0x449/0x710
[  286.754956][   T10]      netlink_sendmsg+0x723/0xbe0
[  286.754956][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  286.754956][   T10]      ___sys_sendmsg+0xee/0x170
[  286.754956][   T10]      __sys_sendmsg+0xcd/0x170
[  286.754956][   T10]      do_syscall_64+0xc6/0x1e0
[  286.754956][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  286.754956][   T10] 
[  286.756703][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  286.756703][   T10]      neigh_parms_alloc+0x1e5/0x510
[  286.756703][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  286.756703][   T10]      ipv6_find_idev+0x102/0x170
[  286.756703][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  286.756703][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  286.756703][   T10]      netlink_rcv_skb+0x130/0x360
[  286.756703][   T10]      netlink_unicast+0x449/0x710
[  286.756703][   T10]      netlink_sendmsg+0x723/0xbe0
[  286.756703][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  286.756703][   T10]      ___sys_sendmsg+0xee/0x170
[  286.756703][   T10]      __sys_sendmsg+0xcd/0x170
[  286.756703][   T10]      do_syscall_64+0xc6/0x1e0
[  286.756703][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  286.756703][   T10] 
[  286.758600][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  286.758872][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  286.758872][   T10]      dst_init+0x84/0x4a0
[  286.758872][   T10]      dst_alloc+0x97/0x150
[  286.758872][   T10]      ip6_dst_alloc+0x23/0x90
[  286.758872][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  286.758872][   T10]      ip6_pol_route+0x56f/0x840
[  286.758872][   T10]      fib6_rule_lookup+0x456/0x630
[  286.758872][   T10]      ip6_route_input+0x59c/0xa50
[  286.758872][   T10]      ipv6_rcv+0x397/0x810
[  286.758872][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  286.758872][   T10]      process_backlog+0x101/0x620
[  286.758872][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  286.758872][   T10]      net_rx_action+0x495/0xbe0
[  286.758872][   T10]      __do_softirq+0x1b5/0x7f6
[  286.758872][   T10] 
[  286.760737][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  286.760737][   T10]      netdev_get_by_index+0x5e/0x80
[  286.760737][   T10]      fib6_nh_init+0x3d8/0x1580
[  286.760737][   T10]      ip6_route_info_create+0xf18/0x17d0
[  286.760737][   T10]      ip6_route_add+0x1c/0x140
[  286.760737][   T10]      addrconf_prefix_route+0x2a6/0x430
[  286.760737][   T10]      inet6_addr_add+0x4f8/0xa40
[  286.760737][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  286.760737][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  286.760737][   T10]      netlink_rcv_skb+0x130/0x360
[  286.760737][   T10]      netlink_unicast+0x449/0x710
[  286.760737][   T10]      netlink_sendmsg+0x723/0xbe0
[  286.760737][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  286.760737][   T10]      ___sys_sendmsg+0xee/0x170
[  286.760737][   T10]      __sys_sendmsg+0xcd/0x170
[  286.760737][   T10]      do_syscall_64+0xc6/0x1e0
[  286.760737][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  286.760737][   T10] 
[  286.762992][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  286.762992][   T10]      netdev_get_by_index+0x5e/0x80
[  286.762992][   T10]      fib6_nh_init+0x3d8/0x1580
[  286.762992][   T10]      ip6_route_info_create+0xf18/0x17d0
[  286.762992][   T10]      addrconf_f6i_alloc+0x315/0x560
[  286.762992][   T10]      ipv6_add_addr+0x411/0x2000
[  286.762992][   T10]      inet6_addr_add+0x30e/0xa40
[  286.762992][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  286.762992][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  286.762992][   T10]      netlink_rcv_skb+0x130/0x360
[  286.762992][   T10]      netlink_unicast+0x449/0x710
[  286.762992][   T10]      netlink_sendmsg+0x723/0xbe0
[  286.762992][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  286.762992][   T10]      ___sys_sendmsg+0xee/0x170
[  286.762992][   T10]      __sys_sendmsg+0xcd/0x170
[  286.762992][   T10]      do_syscall_64+0xc6/0x1e0
[  286.762992][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  286.762992][   T10] 
[  286.765527][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  286.765527][   T10]      netdev_get_by_index+0x5e/0x80
[  286.765527][   T10]      fib6_nh_init+0x3d8/0x1580
[  286.765527][   T10]      ip6_route_info_create+0xf18/0x17d0
[  286.765527][   T10]      ip6_route_add+0x1c/0x140
[  286.765527][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  286.765527][   T10]      addrconf_add_dev+0xe2/0x170
[  286.765527][   T10]      inet6_addr_add+0x12f/0xa40
[  286.765527][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  286.765527][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  286.765527][   T10]      netlink_rcv_skb+0x130/0x360
[  286.765527][   T10]      netlink_unicast+0x449/0x710
[  286.765527][   T10]      netlink_sendmsg+0x723/0xbe0
[  286.765527][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  286.765527][   T10]      ___sys_sendmsg+0xee/0x170
[  286.765527][   T10]      __sys_sendmsg+0xcd/0x170
[  286.765527][   T10]      do_syscall_64+0xc6/0x1e0
[  286.765527][   T10] 
[  286.767834][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  286.767834][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  286.767834][   T10]      ipv6_find_idev+0x102/0x170
[  286.767834][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  286.767834][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  286.767834][   T10]      netlink_rcv_skb+0x130/0x360
[  286.767834][   T10]      netlink_unicast+0x449/0x710
[  286.767834][   T10]      netlink_sendmsg+0x723/0xbe0
[  286.767834][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  286.767834][   T10]      ___sys_sendmsg+0xee/0x170
[  286.767834][   T10]      __sys_sendmsg+0xcd/0x170
[  286.767834][   T10]      do_syscall_64+0xc6/0x1e0
[  286.767834][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  286.767834][   T10] 
[  286.769572][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  286.769572][   T10]      neigh_parms_alloc+0x1e5/0x510
[  286.769572][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  286.769572][   T10]      ipv6_find_idev+0x102/0x170
[  286.769572][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  286.769572][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  286.769572][   T10]      netlink_rcv_skb+0x130/0x360
[  286.769572][   T10]      netlink_unicast+0x449/0x710
[  286.769572][   T10]      netlink_sendmsg+0x723/0xbe0
[  286.769572][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  286.769572][   T10]      ___sys_sendmsg+0xee/0x170
[  286.769572][   T10]      __sys_sendmsg+0xcd/0x170
[  286.769572][   T10]      do_syscall_64+0xc6/0x1e0
[  286.769572][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  286.769572][   T10] 
[  297.009792][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  297.010226][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  297.010226][   T10]      dst_init+0x84/0x4a0
[  297.010226][   T10]      dst_alloc+0x97/0x150
[  297.010226][   T10]      ip6_dst_alloc+0x23/0x90
[  297.010226][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  297.010226][   T10]      ip6_pol_route+0x56f/0x840
[  297.010226][   T10]      fib6_rule_lookup+0x456/0x630
[  297.010226][   T10]      ip6_route_input+0x59c/0xa50
[  297.010226][   T10]      ipv6_rcv+0x397/0x810
[  297.010226][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  297.010226][   T10]      process_backlog+0x101/0x620
[  297.010226][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  297.010226][   T10]      net_rx_action+0x495/0xbe0
[  297.010226][   T10]      __do_softirq+0x1b5/0x7f6
[  297.010226][   T10] 
[  297.012115][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  297.012115][   T10]      netdev_get_by_index+0x5e/0x80
[  297.012115][   T10]      fib6_nh_init+0x3d8/0x1580
[  297.012115][   T10]      ip6_route_info_create+0xf18/0x17d0
[  297.012115][   T10]      ip6_route_add+0x1c/0x140
[  297.012115][   T10]      addrconf_prefix_route+0x2a6/0x430
[  297.012115][   T10]      inet6_addr_add+0x4f8/0xa40
[  297.012115][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  297.012115][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  297.012115][   T10]      netlink_rcv_skb+0x130/0x360
[  297.012115][   T10]      netlink_unicast+0x449/0x710
[  297.012115][   T10]      netlink_sendmsg+0x723/0xbe0
[  297.012115][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  297.012115][   T10]      ___sys_sendmsg+0xee/0x170
[  297.012115][   T10]      __sys_sendmsg+0xcd/0x170
[  297.012115][   T10]      do_syscall_64+0xc6/0x1e0
[  297.012115][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  297.012115][   T10] 
[  297.014385][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  297.014385][   T10]      netdev_get_by_index+0x5e/0x80
[  297.014385][   T10]      fib6_nh_init+0x3d8/0x1580
[  297.014385][   T10]      ip6_route_info_create+0xf18/0x17d0
[  297.014385][   T10]      addrconf_f6i_alloc+0x315/0x560
[  297.014385][   T10]      ipv6_add_addr+0x411/0x2000
[  297.014385][   T10]      inet6_addr_add+0x30e/0xa40
[  297.014385][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  297.014385][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  297.014385][   T10]      netlink_rcv_skb+0x130/0x360
[  297.014385][   T10]      netlink_unicast+0x449/0x710
[  297.014385][   T10]      netlink_sendmsg+0x723/0xbe0
[  297.014385][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  297.014385][   T10]      ___sys_sendmsg+0xee/0x170
[  297.014385][   T10]      __sys_sendmsg+0xcd/0x170
[  297.014385][   T10]      do_syscall_64+0xc6/0x1e0
[  297.014385][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  297.014385][   T10] 
[  297.016647][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  297.016647][   T10]      netdev_get_by_index+0x5e/0x80
[  297.016647][   T10]      fib6_nh_init+0x3d8/0x1580
[  297.016647][   T10]      ip6_route_info_create+0xf18/0x17d0
[  297.016647][   T10]      ip6_route_add+0x1c/0x140
[  297.016647][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  297.016647][   T10]      addrconf_add_dev+0xe2/0x170
[  297.016647][   T10]      inet6_addr_add+0x12f/0xa40
[  297.016647][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  297.016647][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  297.016647][   T10]      netlink_rcv_skb+0x130/0x360
[  297.016647][   T10]      netlink_unicast+0x449/0x710
[  297.016647][   T10]      netlink_sendmsg+0x723/0xbe0
[  297.016647][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  297.016647][   T10]      ___sys_sendmsg+0xee/0x170
[  297.016647][   T10]      __sys_sendmsg+0xcd/0x170
[  297.016647][   T10]      do_syscall_64+0xc6/0x1e0
[  297.016647][   T10] 
[  297.018879][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  297.018879][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  297.018879][   T10]      ipv6_find_idev+0x102/0x170
[  297.018879][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  297.018879][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  297.018879][   T10]      netlink_rcv_skb+0x130/0x360
[  297.018879][   T10]      netlink_unicast+0x449/0x710
[  297.018879][   T10]      netlink_sendmsg+0x723/0xbe0
[  297.018879][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  297.018879][   T10]      ___sys_sendmsg+0xee/0x170
[  297.018879][   T10]      __sys_sendmsg+0xcd/0x170
[  297.018879][   T10]      do_syscall_64+0xc6/0x1e0
[  297.018879][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  297.018879][   T10] 
[  297.020634][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  297.020634][   T10]      neigh_parms_alloc+0x1e5/0x510
[  297.020634][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  297.020634][   T10]      ipv6_find_idev+0x102/0x170
[  297.020634][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  297.020634][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  297.020634][   T10]      netlink_rcv_skb+0x130/0x360
[  297.020634][   T10]      netlink_unicast+0x449/0x710
[  297.020634][   T10]      netlink_sendmsg+0x723/0xbe0
[  297.020634][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  297.020634][   T10]      ___sys_sendmsg+0xee/0x170
[  297.020634][   T10]      __sys_sendmsg+0xcd/0x170
[  297.020634][   T10]      do_syscall_64+0xc6/0x1e0
[  297.020634][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  297.020634][   T10] 
[  297.022536][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  297.022831][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  297.022831][   T10]      dst_init+0x84/0x4a0
[  297.022831][   T10]      dst_alloc+0x97/0x150
[  297.022831][   T10]      ip6_dst_alloc+0x23/0x90
[  297.022831][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  297.022831][   T10]      ip6_pol_route+0x56f/0x840
[  297.022831][   T10]      fib6_rule_lookup+0x456/0x630
[  297.022831][   T10]      ip6_route_input+0x59c/0xa50
[  297.022831][   T10]      ipv6_rcv+0x397/0x810
[  297.022831][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  297.022831][   T10]      process_backlog+0x101/0x620
[  297.022831][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  297.022831][   T10]      net_rx_action+0x495/0xbe0
[  297.022831][   T10]      __do_softirq+0x1b5/0x7f6
[  297.022831][   T10] 
[  297.024704][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  297.024704][   T10]      netdev_get_by_index+0x5e/0x80
[  297.024704][   T10]      fib6_nh_init+0x3d8/0x1580
[  297.024704][   T10]      ip6_route_info_create+0xf18/0x17d0
[  297.024704][   T10]      ip6_route_add+0x1c/0x140
[  297.024704][   T10]      addrconf_prefix_route+0x2a6/0x430
[  297.024704][   T10]      inet6_addr_add+0x4f8/0xa40
[  297.024704][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  297.024704][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  297.024704][   T10]      netlink_rcv_skb+0x130/0x360
[  297.024704][   T10]      netlink_unicast+0x449/0x710
[  297.024704][   T10]      netlink_sendmsg+0x723/0xbe0
[  297.024704][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  297.024704][   T10]      ___sys_sendmsg+0xee/0x170
[  297.024704][   T10]      __sys_sendmsg+0xcd/0x170
[  297.024704][   T10]      do_syscall_64+0xc6/0x1e0
[  297.024704][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  297.024704][   T10] 
[  297.026974][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  297.026974][   T10]      netdev_get_by_index+0x5e/0x80
[  297.026974][   T10]      fib6_nh_init+0x3d8/0x1580
[  297.026974][   T10]      ip6_route_info_create+0xf18/0x17d0
[  297.026974][   T10]      addrconf_f6i_alloc+0x315/0x560
[  297.026974][   T10]      ipv6_add_addr+0x411/0x2000
[  297.026974][   T10]      inet6_addr_add+0x30e/0xa40
[  297.026974][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  297.026974][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  297.026974][   T10]      netlink_rcv_skb+0x130/0x360
[  297.026974][   T10]      netlink_unicast+0x449/0x710
[  297.026974][   T10]      netlink_sendmsg+0x723/0xbe0
[  297.026974][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  297.026974][   T10]      ___sys_sendmsg+0xee/0x170
[  297.026974][   T10]      __sys_sendmsg+0xcd/0x170
[  297.026974][   T10]      do_syscall_64+0xc6/0x1e0
[  297.026974][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  297.026974][   T10] 
[  297.029496][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  297.029496][   T10]      netdev_get_by_index+0x5e/0x80
[  297.029496][   T10]      fib6_nh_init+0x3d8/0x1580
[  297.029496][   T10]      ip6_route_info_create+0xf18/0x17d0
[  297.029496][   T10]      ip6_route_add+0x1c/0x140
[  297.029496][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  297.029496][   T10]      addrconf_add_dev+0xe2/0x170
[  297.029496][   T10]      inet6_addr_add+0x12f/0xa40
[  297.029496][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  297.029496][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  297.029496][   T10]      netlink_rcv_skb+0x130/0x360
[  297.029496][   T10]      netlink_unicast+0x449/0x710
[  297.029496][   T10]      netlink_sendmsg+0x723/0xbe0
[  297.029496][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  297.029496][   T10]      ___sys_sendmsg+0xee/0x170
[  297.029496][   T10]      __sys_sendmsg+0xcd/0x170
[  297.029496][   T10]      do_syscall_64+0xc6/0x1e0
[  297.029496][   T10] 
[  297.032181][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  297.032181][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  297.032181][   T10]      ipv6_find_idev+0x102/0x170
[  297.032181][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  297.032181][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  297.032181][   T10]      netlink_rcv_skb+0x130/0x360
[  297.032181][   T10]      netlink_unicast+0x449/0x710
[  297.032181][   T10]      netlink_sendmsg+0x723/0xbe0
[  297.032181][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  297.032181][   T10]      ___sys_sendmsg+0xee/0x170
[  297.032181][   T10]      __sys_sendmsg+0xcd/0x170
[  297.032181][   T10]      do_syscall_64+0xc6/0x1e0
[  297.032181][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  297.032181][   T10] 
[  297.033917][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  297.033917][   T10]      neigh_parms_alloc+0x1e5/0x510
[  297.033917][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  297.033917][   T10]      ipv6_find_idev+0x102/0x170
[  297.033917][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  297.033917][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  297.033917][   T10]      netlink_rcv_skb+0x130/0x360
[  297.033917][   T10]      netlink_unicast+0x449/0x710
[  297.033917][   T10]      netlink_sendmsg+0x723/0xbe0
[  297.033917][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  297.033917][   T10]      ___sys_sendmsg+0xee/0x170
[  297.033917][   T10]      __sys_sendmsg+0xcd/0x170
[  297.033917][   T10]      do_syscall_64+0xc6/0x1e0
[  297.033917][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  297.033917][   T10] 
[  307.273788][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  307.274445][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  307.274445][   T10]      dst_init+0x84/0x4a0
[  307.274445][   T10]      dst_alloc+0x97/0x150
[  307.274445][   T10]      ip6_dst_alloc+0x23/0x90
[  307.274445][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  307.274445][   T10]      ip6_pol_route+0x56f/0x840
[  307.274445][   T10]      fib6_rule_lookup+0x456/0x630
[  307.274445][   T10]      ip6_route_input+0x59c/0xa50
[  307.274445][   T10]      ipv6_rcv+0x397/0x810
[  307.274445][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  307.274445][   T10]      process_backlog+0x101/0x620
[  307.274445][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  307.274445][   T10]      net_rx_action+0x495/0xbe0
[  307.274445][   T10]      __do_softirq+0x1b5/0x7f6
[  307.274445][   T10] 
[  307.276348][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  307.276348][   T10]      netdev_get_by_index+0x5e/0x80
[  307.276348][   T10]      fib6_nh_init+0x3d8/0x1580
[  307.276348][   T10]      ip6_route_info_create+0xf18/0x17d0
[  307.276348][   T10]      ip6_route_add+0x1c/0x140
[  307.276348][   T10]      addrconf_prefix_route+0x2a6/0x430
[  307.276348][   T10]      inet6_addr_add+0x4f8/0xa40
[  307.276348][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  307.276348][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  307.276348][   T10]      netlink_rcv_skb+0x130/0x360
[  307.276348][   T10]      netlink_unicast+0x449/0x710
[  307.276348][   T10]      netlink_sendmsg+0x723/0xbe0
[  307.276348][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  307.276348][   T10]      ___sys_sendmsg+0xee/0x170
[  307.276348][   T10]      __sys_sendmsg+0xcd/0x170
[  307.276348][   T10]      do_syscall_64+0xc6/0x1e0
[  307.276348][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  307.276348][   T10] 
[  307.278608][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  307.278608][   T10]      netdev_get_by_index+0x5e/0x80
[  307.278608][   T10]      fib6_nh_init+0x3d8/0x1580
[  307.278608][   T10]      ip6_route_info_create+0xf18/0x17d0
[  307.278608][   T10]      addrconf_f6i_alloc+0x315/0x560
[  307.278608][   T10]      ipv6_add_addr+0x411/0x2000
[  307.278608][   T10]      inet6_addr_add+0x30e/0xa40
[  307.278608][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  307.278608][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  307.278608][   T10]      netlink_rcv_skb+0x130/0x360
[  307.278608][   T10]      netlink_unicast+0x449/0x710
[  307.278608][   T10]      netlink_sendmsg+0x723/0xbe0
[  307.278608][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  307.278608][   T10]      ___sys_sendmsg+0xee/0x170
[  307.278608][   T10]      __sys_sendmsg+0xcd/0x170
[  307.278608][   T10]      do_syscall_64+0xc6/0x1e0
[  307.278608][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  307.278608][   T10] 
[  307.280883][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  307.280883][   T10]      netdev_get_by_index+0x5e/0x80
[  307.280883][   T10]      fib6_nh_init+0x3d8/0x1580
[  307.280883][   T10]      ip6_route_info_create+0xf18/0x17d0
[  307.280883][   T10]      ip6_route_add+0x1c/0x140
[  307.280883][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  307.280883][   T10]      addrconf_add_dev+0xe2/0x170
[  307.280883][   T10]      inet6_addr_add+0x12f/0xa40
[  307.280883][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  307.280883][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  307.280883][   T10]      netlink_rcv_skb+0x130/0x360
[  307.280883][   T10]      netlink_unicast+0x449/0x710
[  307.280883][   T10]      netlink_sendmsg+0x723/0xbe0
[  307.280883][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  307.280883][   T10]      ___sys_sendmsg+0xee/0x170
[  307.280883][   T10]      __sys_sendmsg+0xcd/0x170
[  307.280883][   T10]      do_syscall_64+0xc6/0x1e0
[  307.280883][   T10] 
[  307.283106][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  307.283106][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  307.283106][   T10]      ipv6_find_idev+0x102/0x170
[  307.283106][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  307.283106][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  307.283106][   T10]      netlink_rcv_skb+0x130/0x360
[  307.283106][   T10]      netlink_unicast+0x449/0x710
[  307.283106][   T10]      netlink_sendmsg+0x723/0xbe0
[  307.283106][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  307.283106][   T10]      ___sys_sendmsg+0xee/0x170
[  307.283106][   T10]      __sys_sendmsg+0xcd/0x170
[  307.283106][   T10]      do_syscall_64+0xc6/0x1e0
[  307.283106][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  307.283106][   T10] 
[  307.284839][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  307.284839][   T10]      neigh_parms_alloc+0x1e5/0x510
[  307.284839][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  307.284839][   T10]      ipv6_find_idev+0x102/0x170
[  307.284839][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  307.284839][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  307.284839][   T10]      netlink_rcv_skb+0x130/0x360
[  307.284839][   T10]      netlink_unicast+0x449/0x710
[  307.284839][   T10]      netlink_sendmsg+0x723/0xbe0
[  307.284839][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  307.284839][   T10]      ___sys_sendmsg+0xee/0x170
[  307.284839][   T10]      __sys_sendmsg+0xcd/0x170
[  307.284839][   T10]      do_syscall_64+0xc6/0x1e0
[  307.284839][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  307.284839][   T10] 
[  307.286758][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  307.287023][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  307.287023][   T10]      dst_init+0x84/0x4a0
[  307.287023][   T10]      dst_alloc+0x97/0x150
[  307.287023][   T10]      ip6_dst_alloc+0x23/0x90
[  307.287023][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  307.287023][   T10]      ip6_pol_route+0x56f/0x840
[  307.287023][   T10]      fib6_rule_lookup+0x456/0x630
[  307.287023][   T10]      ip6_route_input+0x59c/0xa50
[  307.287023][   T10]      ipv6_rcv+0x397/0x810
[  307.287023][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  307.287023][   T10]      process_backlog+0x101/0x620
[  307.287023][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  307.287023][   T10]      net_rx_action+0x495/0xbe0
[  307.287023][   T10]      __do_softirq+0x1b5/0x7f6
[  307.287023][   T10] 
[  307.289043][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  307.289043][   T10]      netdev_get_by_index+0x5e/0x80
[  307.289043][   T10]      fib6_nh_init+0x3d8/0x1580
[  307.289043][   T10]      ip6_route_info_create+0xf18/0x17d0
[  307.289043][   T10]      ip6_route_add+0x1c/0x140
[  307.289043][   T10]      addrconf_prefix_route+0x2a6/0x430
[  307.289043][   T10]      inet6_addr_add+0x4f8/0xa40
[  307.289043][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  307.289043][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  307.289043][   T10]      netlink_rcv_skb+0x130/0x360
[  307.289043][   T10]      netlink_unicast+0x449/0x710
[  307.289043][   T10]      netlink_sendmsg+0x723/0xbe0
[  307.289043][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  307.289043][   T10]      ___sys_sendmsg+0xee/0x170
[  307.289043][   T10]      __sys_sendmsg+0xcd/0x170
[  307.289043][   T10]      do_syscall_64+0xc6/0x1e0
[  307.289043][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  307.289043][   T10] 
[  307.291572][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  307.291572][   T10]      netdev_get_by_index+0x5e/0x80
[  307.291572][   T10]      fib6_nh_init+0x3d8/0x1580
[  307.291572][   T10]      ip6_route_info_create+0xf18/0x17d0
[  307.291572][   T10]      addrconf_f6i_alloc+0x315/0x560
[  307.291572][   T10]      ipv6_add_addr+0x411/0x2000
[  307.291572][   T10]      inet6_addr_add+0x30e/0xa40
[  307.291572][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  307.291572][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  307.291572][   T10]      netlink_rcv_skb+0x130/0x360
[  307.291572][   T10]      netlink_unicast+0x449/0x710
[  307.291572][   T10]      netlink_sendmsg+0x723/0xbe0
[  307.291572][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  307.291572][   T10]      ___sys_sendmsg+0xee/0x170
[  307.291572][   T10]      __sys_sendmsg+0xcd/0x170
[  307.291572][   T10]      do_syscall_64+0xc6/0x1e0
[  307.291572][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  307.291572][   T10] 
[  307.293822][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  307.293822][   T10]      netdev_get_by_index+0x5e/0x80
[  307.293822][   T10]      fib6_nh_init+0x3d8/0x1580
[  307.293822][   T10]      ip6_route_info_create+0xf18/0x17d0
[  307.293822][   T10]      ip6_route_add+0x1c/0x140
[  307.293822][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  307.293822][   T10]      addrconf_add_dev+0xe2/0x170
[  307.293822][   T10]      inet6_addr_add+0x12f/0xa40
[  307.293822][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  307.293822][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  307.293822][   T10]      netlink_rcv_skb+0x130/0x360
[  307.293822][   T10]      netlink_unicast+0x449/0x710
[  307.293822][   T10]      netlink_sendmsg+0x723/0xbe0
[  307.293822][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  307.293822][   T10]      ___sys_sendmsg+0xee/0x170
[  307.293822][   T10]      __sys_sendmsg+0xcd/0x170
[  307.293822][   T10]      do_syscall_64+0xc6/0x1e0
[  307.293822][   T10] 
[  307.296034][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  307.296034][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  307.296034][   T10]      ipv6_find_idev+0x102/0x170
[  307.296034][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  307.296034][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  307.296034][   T10]      netlink_rcv_skb+0x130/0x360
[  307.296034][   T10]      netlink_unicast+0x449/0x710
[  307.296034][   T10]      netlink_sendmsg+0x723/0xbe0
[  307.296034][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  307.296034][   T10]      ___sys_sendmsg+0xee/0x170
[  307.296034][   T10]      __sys_sendmsg+0xcd/0x170
[  307.296034][   T10]      do_syscall_64+0xc6/0x1e0
[  307.296034][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  307.296034][   T10] 
[  307.297781][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  307.297781][   T10]      neigh_parms_alloc+0x1e5/0x510
[  307.297781][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  307.297781][   T10]      ipv6_find_idev+0x102/0x170
[  307.297781][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  307.297781][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  307.297781][   T10]      netlink_rcv_skb+0x130/0x360
[  307.297781][   T10]      netlink_unicast+0x449/0x710
[  307.297781][   T10]      netlink_sendmsg+0x723/0xbe0
[  307.297781][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  307.297781][   T10]      ___sys_sendmsg+0xee/0x170
[  307.297781][   T10]      __sys_sendmsg+0xcd/0x170
[  307.297781][   T10]      do_syscall_64+0xc6/0x1e0
[  307.297781][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  307.297781][   T10] 
[  317.537822][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  317.538279][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  317.538279][   T10]      dst_init+0x84/0x4a0
[  317.538279][   T10]      dst_alloc+0x97/0x150
[  317.538279][   T10]      ip6_dst_alloc+0x23/0x90
[  317.538279][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  317.538279][   T10]      ip6_pol_route+0x56f/0x840
[  317.538279][   T10]      fib6_rule_lookup+0x456/0x630
[  317.538279][   T10]      ip6_route_input+0x59c/0xa50
[  317.538279][   T10]      ipv6_rcv+0x397/0x810
[  317.538279][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  317.538279][   T10]      process_backlog+0x101/0x620
[  317.538279][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  317.538279][   T10]      net_rx_action+0x495/0xbe0
[  317.538279][   T10]      __do_softirq+0x1b5/0x7f6
[  317.538279][   T10] 
[  317.540158][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  317.540158][   T10]      netdev_get_by_index+0x5e/0x80
[  317.540158][   T10]      fib6_nh_init+0x3d8/0x1580
[  317.540158][   T10]      ip6_route_info_create+0xf18/0x17d0
[  317.540158][   T10]      ip6_route_add+0x1c/0x140
[  317.540158][   T10]      addrconf_prefix_route+0x2a6/0x430
[  317.540158][   T10]      inet6_addr_add+0x4f8/0xa40
[  317.540158][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  317.540158][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  317.540158][   T10]      netlink_rcv_skb+0x130/0x360
[  317.540158][   T10]      netlink_unicast+0x449/0x710
[  317.540158][   T10]      netlink_sendmsg+0x723/0xbe0
[  317.540158][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  317.540158][   T10]      ___sys_sendmsg+0xee/0x170
[  317.540158][   T10]      __sys_sendmsg+0xcd/0x170
[  317.540158][   T10]      do_syscall_64+0xc6/0x1e0
[  317.540158][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  317.540158][   T10] 
[  317.542424][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  317.542424][   T10]      netdev_get_by_index+0x5e/0x80
[  317.542424][   T10]      fib6_nh_init+0x3d8/0x1580
[  317.542424][   T10]      ip6_route_info_create+0xf18/0x17d0
[  317.542424][   T10]      addrconf_f6i_alloc+0x315/0x560
[  317.542424][   T10]      ipv6_add_addr+0x411/0x2000
[  317.542424][   T10]      inet6_addr_add+0x30e/0xa40
[  317.542424][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  317.542424][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  317.542424][   T10]      netlink_rcv_skb+0x130/0x360
[  317.542424][   T10]      netlink_unicast+0x449/0x710
[  317.542424][   T10]      netlink_sendmsg+0x723/0xbe0
[  317.542424][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  317.542424][   T10]      ___sys_sendmsg+0xee/0x170
[  317.542424][   T10]      __sys_sendmsg+0xcd/0x170
[  317.542424][   T10]      do_syscall_64+0xc6/0x1e0
[  317.542424][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  317.542424][   T10] 
[  317.544687][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  317.544687][   T10]      netdev_get_by_index+0x5e/0x80
[  317.544687][   T10]      fib6_nh_init+0x3d8/0x1580
[  317.544687][   T10]      ip6_route_info_create+0xf18/0x17d0
[  317.544687][   T10]      ip6_route_add+0x1c/0x140
[  317.544687][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  317.544687][   T10]      addrconf_add_dev+0xe2/0x170
[  317.544687][   T10]      inet6_addr_add+0x12f/0xa40
[  317.544687][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  317.544687][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  317.544687][   T10]      netlink_rcv_skb+0x130/0x360
[  317.544687][   T10]      netlink_unicast+0x449/0x710
[  317.544687][   T10]      netlink_sendmsg+0x723/0xbe0
[  317.544687][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  317.544687][   T10]      ___sys_sendmsg+0xee/0x170
[  317.544687][   T10]      __sys_sendmsg+0xcd/0x170
[  317.544687][   T10]      do_syscall_64+0xc6/0x1e0
[  317.544687][   T10] 
[  317.546906][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  317.546906][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  317.546906][   T10]      ipv6_find_idev+0x102/0x170
[  317.546906][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  317.546906][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  317.546906][   T10]      netlink_rcv_skb+0x130/0x360
[  317.546906][   T10]      netlink_unicast+0x449/0x710
[  317.546906][   T10]      netlink_sendmsg+0x723/0xbe0
[  317.546906][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  317.546906][   T10]      ___sys_sendmsg+0xee/0x170
[  317.546906][   T10]      __sys_sendmsg+0xcd/0x170
[  317.546906][   T10]      do_syscall_64+0xc6/0x1e0
[  317.546906][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  317.546906][   T10] 
[  317.548638][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  317.548638][   T10]      neigh_parms_alloc+0x1e5/0x510
[  317.548638][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  317.548638][   T10]      ipv6_find_idev+0x102/0x170
[  317.548638][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  317.548638][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  317.548638][   T10]      netlink_rcv_skb+0x130/0x360
[  317.548638][   T10]      netlink_unicast+0x449/0x710
[  317.548638][   T10]      netlink_sendmsg+0x723/0xbe0
[  317.548638][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  317.548638][   T10]      ___sys_sendmsg+0xee/0x170
[  317.548638][   T10]      __sys_sendmsg+0xcd/0x170
[  317.548638][   T10]      do_syscall_64+0xc6/0x1e0
[  317.548638][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  317.548638][   T10] 
[  317.550928][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  317.551207][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  317.551207][   T10]      dst_init+0x84/0x4a0
[  317.551207][   T10]      dst_alloc+0x97/0x150
[  317.551207][   T10]      ip6_dst_alloc+0x23/0x90
[  317.551207][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  317.551207][   T10]      ip6_pol_route+0x56f/0x840
[  317.551207][   T10]      fib6_rule_lookup+0x456/0x630
[  317.551207][   T10]      ip6_route_input+0x59c/0xa50
[  317.551207][   T10]      ipv6_rcv+0x397/0x810
[  317.551207][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  317.551207][   T10]      process_backlog+0x101/0x620
[  317.551207][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  317.551207][   T10]      net_rx_action+0x495/0xbe0
[  317.551207][   T10]      __do_softirq+0x1b5/0x7f6
[  317.551207][   T10] 
[  317.553050][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  317.553050][   T10]      netdev_get_by_index+0x5e/0x80
[  317.553050][   T10]      fib6_nh_init+0x3d8/0x1580
[  317.553050][   T10]      ip6_route_info_create+0xf18/0x17d0
[  317.553050][   T10]      ip6_route_add+0x1c/0x140
[  317.553050][   T10]      addrconf_prefix_route+0x2a6/0x430
[  317.553050][   T10]      inet6_addr_add+0x4f8/0xa40
[  317.553050][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  317.553050][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  317.553050][   T10]      netlink_rcv_skb+0x130/0x360
[  317.553050][   T10]      netlink_unicast+0x449/0x710
[  317.553050][   T10]      netlink_sendmsg+0x723/0xbe0
[  317.553050][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  317.553050][   T10]      ___sys_sendmsg+0xee/0x170
[  317.553050][   T10]      __sys_sendmsg+0xcd/0x170
[  317.553050][   T10]      do_syscall_64+0xc6/0x1e0
[  317.553050][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  317.553050][   T10] 
[  317.555306][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  317.555306][   T10]      netdev_get_by_index+0x5e/0x80
[  317.555306][   T10]      fib6_nh_init+0x3d8/0x1580
[  317.555306][   T10]      ip6_route_info_create+0xf18/0x17d0
[  317.555306][   T10]      addrconf_f6i_alloc+0x315/0x560
[  317.555306][   T10]      ipv6_add_addr+0x411/0x2000
[  317.555306][   T10]      inet6_addr_add+0x30e/0xa40
[  317.555306][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  317.555306][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  317.555306][   T10]      netlink_rcv_skb+0x130/0x360
[  317.555306][   T10]      netlink_unicast+0x449/0x710
[  317.555306][   T10]      netlink_sendmsg+0x723/0xbe0
[  317.555306][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  317.555306][   T10]      ___sys_sendmsg+0xee/0x170
[  317.555306][   T10]      __sys_sendmsg+0xcd/0x170
[  317.555306][   T10]      do_syscall_64+0xc6/0x1e0
[  317.555306][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  317.555306][   T10] 
[  317.557565][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  317.557565][   T10]      netdev_get_by_index+0x5e/0x80
[  317.557565][   T10]      fib6_nh_init+0x3d8/0x1580
[  317.557565][   T10]      ip6_route_info_create+0xf18/0x17d0
[  317.557565][   T10]      ip6_route_add+0x1c/0x140
[  317.557565][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  317.557565][   T10]      addrconf_add_dev+0xe2/0x170
[  317.557565][   T10]      inet6_addr_add+0x12f/0xa40
[  317.557565][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  317.557565][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  317.557565][   T10]      netlink_rcv_skb+0x130/0x360
[  317.557565][   T10]      netlink_unicast+0x449/0x710
[  317.557565][   T10]      netlink_sendmsg+0x723/0xbe0
[  317.557565][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  317.557565][   T10]      ___sys_sendmsg+0xee/0x170
[  317.557565][   T10]      __sys_sendmsg+0xcd/0x170
[  317.557565][   T10]      do_syscall_64+0xc6/0x1e0
[  317.557565][   T10] 
[  317.559774][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  317.559774][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  317.559774][   T10]      ipv6_find_idev+0x102/0x170
[  317.559774][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  317.559774][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  317.559774][   T10]      netlink_rcv_skb+0x130/0x360
[  317.559774][   T10]      netlink_unicast+0x449/0x710
[  317.559774][   T10]      netlink_sendmsg+0x723/0xbe0
[  317.559774][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  317.559774][   T10]      ___sys_sendmsg+0xee/0x170
[  317.559774][   T10]      __sys_sendmsg+0xcd/0x170
[  317.559774][   T10]      do_syscall_64+0xc6/0x1e0
[  317.559774][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  317.559774][   T10] 
[  317.561503][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  317.561503][   T10]      neigh_parms_alloc+0x1e5/0x510
[  317.561503][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  317.561503][   T10]      ipv6_find_idev+0x102/0x170
[  317.561503][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  317.561503][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  317.561503][   T10]      netlink_rcv_skb+0x130/0x360
[  317.561503][   T10]      netlink_unicast+0x449/0x710
[  317.561503][   T10]      netlink_sendmsg+0x723/0xbe0
[  317.561503][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  317.561503][   T10]      ___sys_sendmsg+0xee/0x170
[  317.561503][   T10]      __sys_sendmsg+0xcd/0x170
[  317.561503][   T10]      do_syscall_64+0xc6/0x1e0
[  317.561503][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  317.561503][   T10] 
[  327.801810][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  327.802346][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  327.802346][   T10]      dst_init+0x84/0x4a0
[  327.802346][   T10]      dst_alloc+0x97/0x150
[  327.802346][   T10]      ip6_dst_alloc+0x23/0x90
[  327.802346][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  327.802346][   T10]      ip6_pol_route+0x56f/0x840
[  327.802346][   T10]      fib6_rule_lookup+0x456/0x630
[  327.802346][   T10]      ip6_route_input+0x59c/0xa50
[  327.802346][   T10]      ipv6_rcv+0x397/0x810
[  327.802346][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  327.802346][   T10]      process_backlog+0x101/0x620
[  327.802346][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  327.802346][   T10]      net_rx_action+0x495/0xbe0
[  327.802346][   T10]      __do_softirq+0x1b5/0x7f6
[  327.802346][   T10] 
[  327.804473][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  327.804473][   T10]      netdev_get_by_index+0x5e/0x80
[  327.804473][   T10]      fib6_nh_init+0x3d8/0x1580
[  327.804473][   T10]      ip6_route_info_create+0xf18/0x17d0
[  327.804473][   T10]      ip6_route_add+0x1c/0x140
[  327.804473][   T10]      addrconf_prefix_route+0x2a6/0x430
[  327.804473][   T10]      inet6_addr_add+0x4f8/0xa40
[  327.804473][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  327.804473][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  327.804473][   T10]      netlink_rcv_skb+0x130/0x360
[  327.804473][   T10]      netlink_unicast+0x449/0x710
[  327.804473][   T10]      netlink_sendmsg+0x723/0xbe0
[  327.804473][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  327.804473][   T10]      ___sys_sendmsg+0xee/0x170
[  327.804473][   T10]      __sys_sendmsg+0xcd/0x170
[  327.804473][   T10]      do_syscall_64+0xc6/0x1e0
[  327.804473][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  327.804473][   T10] 
[  327.806719][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  327.806719][   T10]      netdev_get_by_index+0x5e/0x80
[  327.806719][   T10]      fib6_nh_init+0x3d8/0x1580
[  327.806719][   T10]      ip6_route_info_create+0xf18/0x17d0
[  327.806719][   T10]      addrconf_f6i_alloc+0x315/0x560
[  327.806719][   T10]      ipv6_add_addr+0x411/0x2000
[  327.806719][   T10]      inet6_addr_add+0x30e/0xa40
[  327.806719][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  327.806719][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  327.806719][   T10]      netlink_rcv_skb+0x130/0x360
[  327.806719][   T10]      netlink_unicast+0x449/0x710
[  327.806719][   T10]      netlink_sendmsg+0x723/0xbe0
[  327.806719][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  327.806719][   T10]      ___sys_sendmsg+0xee/0x170
[  327.806719][   T10]      __sys_sendmsg+0xcd/0x170
[  327.806719][   T10]      do_syscall_64+0xc6/0x1e0
[  327.806719][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  327.806719][   T10] 
[  327.808999][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  327.808999][   T10]      netdev_get_by_index+0x5e/0x80
[  327.808999][   T10]      fib6_nh_init+0x3d8/0x1580
[  327.808999][   T10]      ip6_route_info_create+0xf18/0x17d0
[  327.808999][   T10]      ip6_route_add+0x1c/0x140
[  327.808999][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  327.808999][   T10]      addrconf_add_dev+0xe2/0x170
[  327.808999][   T10]      inet6_addr_add+0x12f/0xa40
[  327.808999][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  327.808999][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  327.808999][   T10]      netlink_rcv_skb+0x130/0x360
[  327.808999][   T10]      netlink_unicast+0x449/0x710
[  327.808999][   T10]      netlink_sendmsg+0x723/0xbe0
[  327.808999][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  327.808999][   T10]      ___sys_sendmsg+0xee/0x170
[  327.808999][   T10]      __sys_sendmsg+0xcd/0x170
[  327.808999][   T10]      do_syscall_64+0xc6/0x1e0
[  327.808999][   T10] 
[  327.811237][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  327.811237][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  327.811237][   T10]      ipv6_find_idev+0x102/0x170
[  327.811237][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  327.811237][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  327.811237][   T10]      netlink_rcv_skb+0x130/0x360
[  327.811237][   T10]      netlink_unicast+0x449/0x710
[  327.811237][   T10]      netlink_sendmsg+0x723/0xbe0
[  327.811237][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  327.811237][   T10]      ___sys_sendmsg+0xee/0x170
[  327.811237][   T10]      __sys_sendmsg+0xcd/0x170
[  327.811237][   T10]      do_syscall_64+0xc6/0x1e0
[  327.811237][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  327.811237][   T10] 
[  327.813055][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  327.813055][   T10]      neigh_parms_alloc+0x1e5/0x510
[  327.813055][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  327.813055][   T10]      ipv6_find_idev+0x102/0x170
[  327.813055][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  327.813055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  327.813055][   T10]      netlink_rcv_skb+0x130/0x360
[  327.813055][   T10]      netlink_unicast+0x449/0x710
[  327.813055][   T10]      netlink_sendmsg+0x723/0xbe0
[  327.813055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  327.813055][   T10]      ___sys_sendmsg+0xee/0x170
[  327.813055][   T10]      __sys_sendmsg+0xcd/0x170
[  327.813055][   T10]      do_syscall_64+0xc6/0x1e0
[  327.813055][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  327.813055][   T10] 
[  327.815469][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  327.815748][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  327.815748][   T10]      dst_init+0x84/0x4a0
[  327.815748][   T10]      dst_alloc+0x97/0x150
[  327.815748][   T10]      ip6_dst_alloc+0x23/0x90
[  327.815748][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  327.815748][   T10]      ip6_pol_route+0x56f/0x840
[  327.815748][   T10]      fib6_rule_lookup+0x456/0x630
[  327.815748][   T10]      ip6_route_input+0x59c/0xa50
[  327.815748][   T10]      ipv6_rcv+0x397/0x810
[  327.815748][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  327.815748][   T10]      process_backlog+0x101/0x620
[  327.815748][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  327.815748][   T10]      net_rx_action+0x495/0xbe0
[  327.815748][   T10]      __do_softirq+0x1b5/0x7f6
[  327.815748][   T10] 
[  327.817637][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  327.817637][   T10]      netdev_get_by_index+0x5e/0x80
[  327.817637][   T10]      fib6_nh_init+0x3d8/0x1580
[  327.817637][   T10]      ip6_route_info_create+0xf18/0x17d0
[  327.817637][   T10]      ip6_route_add+0x1c/0x140
[  327.817637][   T10]      addrconf_prefix_route+0x2a6/0x430
[  327.817637][   T10]      inet6_addr_add+0x4f8/0xa40
[  327.817637][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  327.817637][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  327.817637][   T10]      netlink_rcv_skb+0x130/0x360
[  327.817637][   T10]      netlink_unicast+0x449/0x710
[  327.817637][   T10]      netlink_sendmsg+0x723/0xbe0
[  327.817637][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  327.817637][   T10]      ___sys_sendmsg+0xee/0x170
[  327.817637][   T10]      __sys_sendmsg+0xcd/0x170
[  327.817637][   T10]      do_syscall_64+0xc6/0x1e0
[  327.817637][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  327.817637][   T10] 
[  327.819904][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  327.819904][   T10]      netdev_get_by_index+0x5e/0x80
[  327.819904][   T10]      fib6_nh_init+0x3d8/0x1580
[  327.819904][   T10]      ip6_route_info_create+0xf18/0x17d0
[  327.819904][   T10]      addrconf_f6i_alloc+0x315/0x560
[  327.819904][   T10]      ipv6_add_addr+0x411/0x2000
[  327.819904][   T10]      inet6_addr_add+0x30e/0xa40
[  327.819904][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  327.819904][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  327.819904][   T10]      netlink_rcv_skb+0x130/0x360
[  327.819904][   T10]      netlink_unicast+0x449/0x710
[  327.819904][   T10]      netlink_sendmsg+0x723/0xbe0
[  327.819904][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  327.819904][   T10]      ___sys_sendmsg+0xee/0x170
[  327.819904][   T10]      __sys_sendmsg+0xcd/0x170
[  327.819904][   T10]      do_syscall_64+0xc6/0x1e0
[  327.819904][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  327.819904][   T10] 
[  327.822194][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  327.822194][   T10]      netdev_get_by_index+0x5e/0x80
[  327.822194][   T10]      fib6_nh_init+0x3d8/0x1580
[  327.822194][   T10]      ip6_route_info_create+0xf18/0x17d0
[  327.822194][   T10]      ip6_route_add+0x1c/0x140
[  327.822194][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  327.822194][   T10]      addrconf_add_dev+0xe2/0x170
[  327.822194][   T10]      inet6_addr_add+0x12f/0xa40
[  327.822194][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  327.822194][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  327.822194][   T10]      netlink_rcv_skb+0x130/0x360
[  327.822194][   T10]      netlink_unicast+0x449/0x710
[  327.822194][   T10]      netlink_sendmsg+0x723/0xbe0
[  327.822194][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  327.822194][   T10]      ___sys_sendmsg+0xee/0x170
[  327.822194][   T10]      __sys_sendmsg+0xcd/0x170
[  327.822194][   T10]      do_syscall_64+0xc6/0x1e0
[  327.822194][   T10] 
[  327.824415][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  327.824415][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  327.824415][   T10]      ipv6_find_idev+0x102/0x170
[  327.824415][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  327.824415][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  327.824415][   T10]      netlink_rcv_skb+0x130/0x360
[  327.824415][   T10]      netlink_unicast+0x449/0x710
[  327.824415][   T10]      netlink_sendmsg+0x723/0xbe0
[  327.824415][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  327.824415][   T10]      ___sys_sendmsg+0xee/0x170
[  327.824415][   T10]      __sys_sendmsg+0xcd/0x170
[  327.824415][   T10]      do_syscall_64+0xc6/0x1e0
[  327.824415][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  327.824415][   T10] 
[  327.826147][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  327.826147][   T10]      neigh_parms_alloc+0x1e5/0x510
[  327.826147][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  327.826147][   T10]      ipv6_find_idev+0x102/0x170
[  327.826147][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  327.826147][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  327.826147][   T10]      netlink_rcv_skb+0x130/0x360
[  327.826147][   T10]      netlink_unicast+0x449/0x710
[  327.826147][   T10]      netlink_sendmsg+0x723/0xbe0
[  327.826147][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  327.826147][   T10]      ___sys_sendmsg+0xee/0x170
[  327.826147][   T10]      __sys_sendmsg+0xcd/0x170
[  327.826147][   T10]      do_syscall_64+0xc6/0x1e0
[  327.826147][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  327.826147][   T10] 
[  338.065778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  338.066302][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  338.066302][   T10]      dst_init+0x84/0x4a0
[  338.066302][   T10]      dst_alloc+0x97/0x150
[  338.066302][   T10]      ip6_dst_alloc+0x23/0x90
[  338.066302][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  338.066302][   T10]      ip6_pol_route+0x56f/0x840
[  338.066302][   T10]      fib6_rule_lookup+0x456/0x630
[  338.066302][   T10]      ip6_route_input+0x59c/0xa50
[  338.066302][   T10]      ipv6_rcv+0x397/0x810
[  338.066302][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  338.066302][   T10]      process_backlog+0x101/0x620
[  338.066302][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  338.066302][   T10]      net_rx_action+0x495/0xbe0
[  338.066302][   T10]      __do_softirq+0x1b5/0x7f6
[  338.066302][   T10] 
[  338.068410][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  338.068410][   T10]      netdev_get_by_index+0x5e/0x80
[  338.068410][   T10]      fib6_nh_init+0x3d8/0x1580
[  338.068410][   T10]      ip6_route_info_create+0xf18/0x17d0
[  338.068410][   T10]      ip6_route_add+0x1c/0x140
[  338.068410][   T10]      addrconf_prefix_route+0x2a6/0x430
[  338.068410][   T10]      inet6_addr_add+0x4f8/0xa40
[  338.068410][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  338.068410][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  338.068410][   T10]      netlink_rcv_skb+0x130/0x360
[  338.068410][   T10]      netlink_unicast+0x449/0x710
[  338.068410][   T10]      netlink_sendmsg+0x723/0xbe0
[  338.068410][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  338.068410][   T10]      ___sys_sendmsg+0xee/0x170
[  338.068410][   T10]      __sys_sendmsg+0xcd/0x170
[  338.068410][   T10]      do_syscall_64+0xc6/0x1e0
[  338.068410][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  338.068410][   T10] 
[  338.070655][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  338.070655][   T10]      netdev_get_by_index+0x5e/0x80
[  338.070655][   T10]      fib6_nh_init+0x3d8/0x1580
[  338.070655][   T10]      ip6_route_info_create+0xf18/0x17d0
[  338.070655][   T10]      addrconf_f6i_alloc+0x315/0x560
[  338.070655][   T10]      ipv6_add_addr+0x411/0x2000
[  338.070655][   T10]      inet6_addr_add+0x30e/0xa40
[  338.070655][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  338.070655][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  338.070655][   T10]      netlink_rcv_skb+0x130/0x360
[  338.070655][   T10]      netlink_unicast+0x449/0x710
[  338.070655][   T10]      netlink_sendmsg+0x723/0xbe0
[  338.070655][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  338.070655][   T10]      ___sys_sendmsg+0xee/0x170
[  338.070655][   T10]      __sys_sendmsg+0xcd/0x170
[  338.070655][   T10]      do_syscall_64+0xc6/0x1e0
[  338.070655][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  338.070655][   T10] 
[  338.073015][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  338.073015][   T10]      netdev_get_by_index+0x5e/0x80
[  338.073015][   T10]      fib6_nh_init+0x3d8/0x1580
[  338.073015][   T10]      ip6_route_info_create+0xf18/0x17d0
[  338.073015][   T10]      ip6_route_add+0x1c/0x140
[  338.073015][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  338.073015][   T10]      addrconf_add_dev+0xe2/0x170
[  338.073015][   T10]      inet6_addr_add+0x12f/0xa40
[  338.073015][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  338.073015][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  338.073015][   T10]      netlink_rcv_skb+0x130/0x360
[  338.073015][   T10]      netlink_unicast+0x449/0x710
[  338.073015][   T10]      netlink_sendmsg+0x723/0xbe0
[  338.073015][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  338.073015][   T10]      ___sys_sendmsg+0xee/0x170
[  338.073015][   T10]      __sys_sendmsg+0xcd/0x170
[  338.073015][   T10]      do_syscall_64+0xc6/0x1e0
[  338.073015][   T10] 
[  338.075214][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  338.075214][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  338.075214][   T10]      ipv6_find_idev+0x102/0x170
[  338.075214][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  338.075214][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  338.075214][   T10]      netlink_rcv_skb+0x130/0x360
[  338.075214][   T10]      netlink_unicast+0x449/0x710
[  338.075214][   T10]      netlink_sendmsg+0x723/0xbe0
[  338.075214][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  338.075214][   T10]      ___sys_sendmsg+0xee/0x170
[  338.075214][   T10]      __sys_sendmsg+0xcd/0x170
[  338.075214][   T10]      do_syscall_64+0xc6/0x1e0
[  338.075214][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  338.075214][   T10] 
[  338.076948][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  338.076948][   T10]      neigh_parms_alloc+0x1e5/0x510
[  338.076948][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  338.076948][   T10]      ipv6_find_idev+0x102/0x170
[  338.076948][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  338.076948][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  338.076948][   T10]      netlink_rcv_skb+0x130/0x360
[  338.076948][   T10]      netlink_unicast+0x449/0x710
[  338.076948][   T10]      netlink_sendmsg+0x723/0xbe0
[  338.076948][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  338.076948][   T10]      ___sys_sendmsg+0xee/0x170
[  338.076948][   T10]      __sys_sendmsg+0xcd/0x170
[  338.076948][   T10]      do_syscall_64+0xc6/0x1e0
[  338.076948][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  338.076948][   T10] 
[  338.078877][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  338.079141][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  338.079141][   T10]      dst_init+0x84/0x4a0
[  338.079141][   T10]      dst_alloc+0x97/0x150
[  338.079141][   T10]      ip6_dst_alloc+0x23/0x90
[  338.079141][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  338.079141][   T10]      ip6_pol_route+0x56f/0x840
[  338.079141][   T10]      fib6_rule_lookup+0x456/0x630
[  338.079141][   T10]      ip6_route_input+0x59c/0xa50
[  338.079141][   T10]      ipv6_rcv+0x397/0x810
[  338.079141][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  338.079141][   T10]      process_backlog+0x101/0x620
[  338.079141][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  338.079141][   T10]      net_rx_action+0x495/0xbe0
[  338.079141][   T10]      __do_softirq+0x1b5/0x7f6
[  338.079141][   T10] 
[  338.080980][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  338.080980][   T10]      netdev_get_by_index+0x5e/0x80
[  338.080980][   T10]      fib6_nh_init+0x3d8/0x1580
[  338.080980][   T10]      ip6_route_info_create+0xf18/0x17d0
[  338.080980][   T10]      ip6_route_add+0x1c/0x140
[  338.080980][   T10]      addrconf_prefix_route+0x2a6/0x430
[  338.080980][   T10]      inet6_addr_add+0x4f8/0xa40
[  338.080980][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  338.080980][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  338.080980][   T10]      netlink_rcv_skb+0x130/0x360
[  338.080980][   T10]      netlink_unicast+0x449/0x710
[  338.080980][   T10]      netlink_sendmsg+0x723/0xbe0
[  338.080980][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  338.080980][   T10]      ___sys_sendmsg+0xee/0x170
[  338.080980][   T10]      __sys_sendmsg+0xcd/0x170
[  338.080980][   T10]      do_syscall_64+0xc6/0x1e0
[  338.080980][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  338.080980][   T10] 
[  338.083402][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  338.083402][   T10]      netdev_get_by_index+0x5e/0x80
[  338.083402][   T10]      fib6_nh_init+0x3d8/0x1580
[  338.083402][   T10]      ip6_route_info_create+0xf18/0x17d0
[  338.083402][   T10]      addrconf_f6i_alloc+0x315/0x560
[  338.083402][   T10]      ipv6_add_addr+0x411/0x2000
[  338.083402][   T10]      inet6_addr_add+0x30e/0xa40
[  338.083402][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  338.083402][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  338.083402][   T10]      netlink_rcv_skb+0x130/0x360
[  338.083402][   T10]      netlink_unicast+0x449/0x710
[  338.083402][   T10]      netlink_sendmsg+0x723/0xbe0
[  338.083402][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  338.083402][   T10]      ___sys_sendmsg+0xee/0x170
[  338.083402][   T10]      __sys_sendmsg+0xcd/0x170
[  338.083402][   T10]      do_syscall_64+0xc6/0x1e0
[  338.083402][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  338.083402][   T10] 
[  338.086214][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  338.086214][   T10]      netdev_get_by_index+0x5e/0x80
[  338.086214][   T10]      fib6_nh_init+0x3d8/0x1580
[  338.086214][   T10]      ip6_route_info_create+0xf18/0x17d0
[  338.086214][   T10]      ip6_route_add+0x1c/0x140
[  338.086214][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  338.086214][   T10]      addrconf_add_dev+0xe2/0x170
[  338.086214][   T10]      inet6_addr_add+0x12f/0xa40
[  338.086214][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  338.086214][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  338.086214][   T10]      netlink_rcv_skb+0x130/0x360
[  338.086214][   T10]      netlink_unicast+0x449/0x710
[  338.086214][   T10]      netlink_sendmsg+0x723/0xbe0
[  338.086214][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  338.086214][   T10]      ___sys_sendmsg+0xee/0x170
[  338.086214][   T10]      __sys_sendmsg+0xcd/0x170
[  338.086214][   T10]      do_syscall_64+0xc6/0x1e0
[  338.086214][   T10] 
[  338.088400][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  338.088400][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  338.088400][   T10]      ipv6_find_idev+0x102/0x170
[  338.088400][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  338.088400][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  338.088400][   T10]      netlink_rcv_skb+0x130/0x360
[  338.088400][   T10]      netlink_unicast+0x449/0x710
[  338.088400][   T10]      netlink_sendmsg+0x723/0xbe0
[  338.088400][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  338.088400][   T10]      ___sys_sendmsg+0xee/0x170
[  338.088400][   T10]      __sys_sendmsg+0xcd/0x170
[  338.088400][   T10]      do_syscall_64+0xc6/0x1e0
[  338.088400][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  338.088400][   T10] 
[  338.090140][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  338.090140][   T10]      neigh_parms_alloc+0x1e5/0x510
[  338.090140][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  338.090140][   T10]      ipv6_find_idev+0x102/0x170
[  338.090140][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  338.090140][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  338.090140][   T10]      netlink_rcv_skb+0x130/0x360
[  338.090140][   T10]      netlink_unicast+0x449/0x710
[  338.090140][   T10]      netlink_sendmsg+0x723/0xbe0
[  338.090140][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  338.090140][   T10]      ___sys_sendmsg+0xee/0x170
[  338.090140][   T10]      __sys_sendmsg+0xcd/0x170
[  338.090140][   T10]      do_syscall_64+0xc6/0x1e0
[  338.090140][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  338.090140][   T10] 
[  348.337893][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  348.338327][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  348.338327][   T10]      dst_init+0x84/0x4a0
[  348.338327][   T10]      dst_alloc+0x97/0x150
[  348.338327][   T10]      ip6_dst_alloc+0x23/0x90
[  348.338327][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  348.338327][   T10]      ip6_pol_route+0x56f/0x840
[  348.338327][   T10]      fib6_rule_lookup+0x456/0x630
[  348.338327][   T10]      ip6_route_input+0x59c/0xa50
[  348.338327][   T10]      ipv6_rcv+0x397/0x810
[  348.338327][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  348.338327][   T10]      process_backlog+0x101/0x620
[  348.338327][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  348.338327][   T10]      net_rx_action+0x495/0xbe0
[  348.338327][   T10]      __do_softirq+0x1b5/0x7f6
[  348.338327][   T10] 
[  348.340200][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  348.340200][   T10]      netdev_get_by_index+0x5e/0x80
[  348.340200][   T10]      fib6_nh_init+0x3d8/0x1580
[  348.340200][   T10]      ip6_route_info_create+0xf18/0x17d0
[  348.340200][   T10]      ip6_route_add+0x1c/0x140
[  348.340200][   T10]      addrconf_prefix_route+0x2a6/0x430
[  348.340200][   T10]      inet6_addr_add+0x4f8/0xa40
[  348.340200][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  348.340200][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  348.340200][   T10]      netlink_rcv_skb+0x130/0x360
[  348.340200][   T10]      netlink_unicast+0x449/0x710
[  348.340200][   T10]      netlink_sendmsg+0x723/0xbe0
[  348.340200][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  348.340200][   T10]      ___sys_sendmsg+0xee/0x170
[  348.340200][   T10]      __sys_sendmsg+0xcd/0x170
[  348.340200][   T10]      do_syscall_64+0xc6/0x1e0
[  348.340200][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  348.340200][   T10] 
[  348.342490][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  348.342490][   T10]      netdev_get_by_index+0x5e/0x80
[  348.342490][   T10]      fib6_nh_init+0x3d8/0x1580
[  348.342490][   T10]      ip6_route_info_create+0xf18/0x17d0
[  348.342490][   T10]      addrconf_f6i_alloc+0x315/0x560
[  348.342490][   T10]      ipv6_add_addr+0x411/0x2000
[  348.342490][   T10]      inet6_addr_add+0x30e/0xa40
[  348.342490][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  348.342490][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  348.342490][   T10]      netlink_rcv_skb+0x130/0x360
[  348.342490][   T10]      netlink_unicast+0x449/0x710
[  348.342490][   T10]      netlink_sendmsg+0x723/0xbe0
[  348.342490][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  348.342490][   T10]      ___sys_sendmsg+0xee/0x170
[  348.342490][   T10]      __sys_sendmsg+0xcd/0x170
[  348.342490][   T10]      do_syscall_64+0xc6/0x1e0
[  348.342490][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  348.342490][   T10] 
[  348.345278][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  348.345278][   T10]      netdev_get_by_index+0x5e/0x80
[  348.345278][   T10]      fib6_nh_init+0x3d8/0x1580
[  348.345278][   T10]      ip6_route_info_create+0xf18/0x17d0
[  348.345278][   T10]      ip6_route_add+0x1c/0x140
[  348.345278][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  348.345278][   T10]      addrconf_add_dev+0xe2/0x170
[  348.345278][   T10]      inet6_addr_add+0x12f/0xa40
[  348.345278][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  348.345278][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  348.345278][   T10]      netlink_rcv_skb+0x130/0x360
[  348.345278][   T10]      netlink_unicast+0x449/0x710
[  348.345278][   T10]      netlink_sendmsg+0x723/0xbe0
[  348.345278][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  348.345278][   T10]      ___sys_sendmsg+0xee/0x170
[  348.345278][   T10]      __sys_sendmsg+0xcd/0x170
[  348.345278][   T10]      do_syscall_64+0xc6/0x1e0
[  348.345278][   T10] 
[  348.347513][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  348.347513][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  348.347513][   T10]      ipv6_find_idev+0x102/0x170
[  348.347513][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  348.347513][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  348.347513][   T10]      netlink_rcv_skb+0x130/0x360
[  348.347513][   T10]      netlink_unicast+0x449/0x710
[  348.347513][   T10]      netlink_sendmsg+0x723/0xbe0
[  348.347513][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  348.347513][   T10]      ___sys_sendmsg+0xee/0x170
[  348.347513][   T10]      __sys_sendmsg+0xcd/0x170
[  348.347513][   T10]      do_syscall_64+0xc6/0x1e0
[  348.347513][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  348.347513][   T10] 
[  348.349259][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  348.349259][   T10]      neigh_parms_alloc+0x1e5/0x510
[  348.349259][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  348.349259][   T10]      ipv6_find_idev+0x102/0x170
[  348.349259][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  348.349259][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  348.349259][   T10]      netlink_rcv_skb+0x130/0x360
[  348.349259][   T10]      netlink_unicast+0x449/0x710
[  348.349259][   T10]      netlink_sendmsg+0x723/0xbe0
[  348.349259][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  348.349259][   T10]      ___sys_sendmsg+0xee/0x170
[  348.349259][   T10]      __sys_sendmsg+0xcd/0x170
[  348.349259][   T10]      do_syscall_64+0xc6/0x1e0
[  348.349259][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  348.349259][   T10] 
[  348.351160][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  348.351424][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  348.351424][   T10]      dst_init+0x84/0x4a0
[  348.351424][   T10]      dst_alloc+0x97/0x150
[  348.351424][   T10]      ip6_dst_alloc+0x23/0x90
[  348.351424][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  348.351424][   T10]      ip6_pol_route+0x56f/0x840
[  348.351424][   T10]      fib6_rule_lookup+0x456/0x630
[  348.351424][   T10]      ip6_route_input+0x59c/0xa50
[  348.351424][   T10]      ipv6_rcv+0x397/0x810
[  348.351424][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  348.351424][   T10]      process_backlog+0x101/0x620
[  348.351424][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  348.351424][   T10]      net_rx_action+0x495/0xbe0
[  348.351424][   T10]      __do_softirq+0x1b5/0x7f6
[  348.351424][   T10] 
[  348.353286][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  348.353286][   T10]      netdev_get_by_index+0x5e/0x80
[  348.353286][   T10]      fib6_nh_init+0x3d8/0x1580
[  348.353286][   T10]      ip6_route_info_create+0xf18/0x17d0
[  348.353286][   T10]      ip6_route_add+0x1c/0x140
[  348.353286][   T10]      addrconf_prefix_route+0x2a6/0x430
[  348.353286][   T10]      inet6_addr_add+0x4f8/0xa40
[  348.353286][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  348.353286][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  348.353286][   T10]      netlink_rcv_skb+0x130/0x360
[  348.353286][   T10]      netlink_unicast+0x449/0x710
[  348.353286][   T10]      netlink_sendmsg+0x723/0xbe0
[  348.353286][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  348.353286][   T10]      ___sys_sendmsg+0xee/0x170
[  348.353286][   T10]      __sys_sendmsg+0xcd/0x170
[  348.353286][   T10]      do_syscall_64+0xc6/0x1e0
[  348.353286][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  348.353286][   T10] 
[  348.355550][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  348.355550][   T10]      netdev_get_by_index+0x5e/0x80
[  348.355550][   T10]      fib6_nh_init+0x3d8/0x1580
[  348.355550][   T10]      ip6_route_info_create+0xf18/0x17d0
[  348.355550][   T10]      addrconf_f6i_alloc+0x315/0x560
[  348.355550][   T10]      ipv6_add_addr+0x411/0x2000
[  348.355550][   T10]      inet6_addr_add+0x30e/0xa40
[  348.355550][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  348.355550][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  348.355550][   T10]      netlink_rcv_skb+0x130/0x360
[  348.355550][   T10]      netlink_unicast+0x449/0x710
[  348.355550][   T10]      netlink_sendmsg+0x723/0xbe0
[  348.355550][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  348.355550][   T10]      ___sys_sendmsg+0xee/0x170
[  348.355550][   T10]      __sys_sendmsg+0xcd/0x170
[  348.355550][   T10]      do_syscall_64+0xc6/0x1e0
[  348.355550][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  348.355550][   T10] 
[  348.357809][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  348.357809][   T10]      netdev_get_by_index+0x5e/0x80
[  348.357809][   T10]      fib6_nh_init+0x3d8/0x1580
[  348.357809][   T10]      ip6_route_info_create+0xf18/0x17d0
[  348.357809][   T10]      ip6_route_add+0x1c/0x140
[  348.357809][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  348.357809][   T10]      addrconf_add_dev+0xe2/0x170
[  348.357809][   T10]      inet6_addr_add+0x12f/0xa40
[  348.357809][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  348.357809][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  348.357809][   T10]      netlink_rcv_skb+0x130/0x360
[  348.357809][   T10]      netlink_unicast+0x449/0x710
[  348.357809][   T10]      netlink_sendmsg+0x723/0xbe0
[  348.357809][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  348.357809][   T10]      ___sys_sendmsg+0xee/0x170
[  348.357809][   T10]      __sys_sendmsg+0xcd/0x170
[  348.357809][   T10]      do_syscall_64+0xc6/0x1e0
[  348.357809][   T10] 
[  348.360004][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  348.360004][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  348.360004][   T10]      ipv6_find_idev+0x102/0x170
[  348.360004][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  348.360004][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  348.360004][   T10]      netlink_rcv_skb+0x130/0x360
[  348.360004][   T10]      netlink_unicast+0x449/0x710
[  348.360004][   T10]      netlink_sendmsg+0x723/0xbe0
[  348.360004][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  348.360004][   T10]      ___sys_sendmsg+0xee/0x170
[  348.360004][   T10]      __sys_sendmsg+0xcd/0x170
[  348.360004][   T10]      do_syscall_64+0xc6/0x1e0
[  348.360004][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  348.360004][   T10] 
[  348.361732][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  348.361732][   T10]      neigh_parms_alloc+0x1e5/0x510
[  348.361732][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  348.361732][   T10]      ipv6_find_idev+0x102/0x170
[  348.361732][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  348.361732][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  348.361732][   T10]      netlink_rcv_skb+0x130/0x360
[  348.361732][   T10]      netlink_unicast+0x449/0x710
[  348.361732][   T10]      netlink_sendmsg+0x723/0xbe0
[  348.361732][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  348.361732][   T10]      ___sys_sendmsg+0xee/0x170
[  348.361732][   T10]      __sys_sendmsg+0xcd/0x170
[  348.361732][   T10]      do_syscall_64+0xc6/0x1e0
[  348.361732][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  348.361732][   T10] 
[  358.545850][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  358.546293][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  358.546293][   T10]      dst_init+0x84/0x4a0
[  358.546293][   T10]      dst_alloc+0x97/0x150
[  358.546293][   T10]      ip6_dst_alloc+0x23/0x90
[  358.546293][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  358.546293][   T10]      ip6_pol_route+0x56f/0x840
[  358.546293][   T10]      fib6_rule_lookup+0x456/0x630
[  358.546293][   T10]      ip6_route_input+0x59c/0xa50
[  358.546293][   T10]      ipv6_rcv+0x397/0x810
[  358.546293][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  358.546293][   T10]      process_backlog+0x101/0x620
[  358.546293][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  358.546293][   T10]      net_rx_action+0x495/0xbe0
[  358.546293][   T10]      __do_softirq+0x1b5/0x7f6
[  358.546293][   T10] 
[  358.548153][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  358.548153][   T10]      netdev_get_by_index+0x5e/0x80
[  358.548153][   T10]      fib6_nh_init+0x3d8/0x1580
[  358.548153][   T10]      ip6_route_info_create+0xf18/0x17d0
[  358.548153][   T10]      ip6_route_add+0x1c/0x140
[  358.548153][   T10]      addrconf_prefix_route+0x2a6/0x430
[  358.548153][   T10]      inet6_addr_add+0x4f8/0xa40
[  358.548153][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  358.548153][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  358.548153][   T10]      netlink_rcv_skb+0x130/0x360
[  358.548153][   T10]      netlink_unicast+0x449/0x710
[  358.548153][   T10]      netlink_sendmsg+0x723/0xbe0
[  358.548153][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  358.548153][   T10]      ___sys_sendmsg+0xee/0x170
[  358.548153][   T10]      __sys_sendmsg+0xcd/0x170
[  358.548153][   T10]      do_syscall_64+0xc6/0x1e0
[  358.548153][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  358.548153][   T10] 
[  358.550414][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  358.550414][   T10]      netdev_get_by_index+0x5e/0x80
[  358.550414][   T10]      fib6_nh_init+0x3d8/0x1580
[  358.550414][   T10]      ip6_route_info_create+0xf18/0x17d0
[  358.550414][   T10]      addrconf_f6i_alloc+0x315/0x560
[  358.550414][   T10]      ipv6_add_addr+0x411/0x2000
[  358.550414][   T10]      inet6_addr_add+0x30e/0xa40
[  358.550414][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  358.550414][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  358.550414][   T10]      netlink_rcv_skb+0x130/0x360
[  358.550414][   T10]      netlink_unicast+0x449/0x710
[  358.550414][   T10]      netlink_sendmsg+0x723/0xbe0
[  358.550414][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  358.550414][   T10]      ___sys_sendmsg+0xee/0x170
[  358.550414][   T10]      __sys_sendmsg+0xcd/0x170
[  358.550414][   T10]      do_syscall_64+0xc6/0x1e0
[  358.550414][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  358.550414][   T10] 
[  358.552680][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  358.552680][   T10]      netdev_get_by_index+0x5e/0x80
[  358.552680][   T10]      fib6_nh_init+0x3d8/0x1580
[  358.552680][   T10]      ip6_route_info_create+0xf18/0x17d0
[  358.552680][   T10]      ip6_route_add+0x1c/0x140
[  358.552680][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  358.552680][   T10]      addrconf_add_dev+0xe2/0x170
[  358.552680][   T10]      inet6_addr_add+0x12f/0xa40
[  358.552680][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  358.552680][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  358.552680][   T10]      netlink_rcv_skb+0x130/0x360
[  358.552680][   T10]      netlink_unicast+0x449/0x710
[  358.552680][   T10]      netlink_sendmsg+0x723/0xbe0
[  358.552680][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  358.552680][   T10]      ___sys_sendmsg+0xee/0x170
[  358.552680][   T10]      __sys_sendmsg+0xcd/0x170
[  358.552680][   T10]      do_syscall_64+0xc6/0x1e0
[  358.552680][   T10] 
[  358.554906][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  358.554906][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  358.554906][   T10]      ipv6_find_idev+0x102/0x170
[  358.554906][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  358.554906][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  358.554906][   T10]      netlink_rcv_skb+0x130/0x360
[  358.554906][   T10]      netlink_unicast+0x449/0x710
[  358.554906][   T10]      netlink_sendmsg+0x723/0xbe0
[  358.554906][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  358.554906][   T10]      ___sys_sendmsg+0xee/0x170
[  358.554906][   T10]      __sys_sendmsg+0xcd/0x170
[  358.554906][   T10]      do_syscall_64+0xc6/0x1e0
[  358.554906][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  358.554906][   T10] 
[  358.556642][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  358.556642][   T10]      neigh_parms_alloc+0x1e5/0x510
[  358.556642][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  358.556642][   T10]      ipv6_find_idev+0x102/0x170
[  358.556642][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  358.556642][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  358.556642][   T10]      netlink_rcv_skb+0x130/0x360
[  358.556642][   T10]      netlink_unicast+0x449/0x710
[  358.556642][   T10]      netlink_sendmsg+0x723/0xbe0
[  358.556642][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  358.556642][   T10]      ___sys_sendmsg+0xee/0x170
[  358.556642][   T10]      __sys_sendmsg+0xcd/0x170
[  358.556642][   T10]      do_syscall_64+0xc6/0x1e0
[  358.556642][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  358.556642][   T10] 
[  358.558544][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  358.558818][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  358.558818][   T10]      dst_init+0x84/0x4a0
[  358.558818][   T10]      dst_alloc+0x97/0x150
[  358.558818][   T10]      ip6_dst_alloc+0x23/0x90
[  358.558818][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  358.558818][   T10]      ip6_pol_route+0x56f/0x840
[  358.558818][   T10]      fib6_rule_lookup+0x456/0x630
[  358.558818][   T10]      ip6_route_input+0x59c/0xa50
[  358.558818][   T10]      ipv6_rcv+0x397/0x810
[  358.558818][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  358.558818][   T10]      process_backlog+0x101/0x620
[  358.558818][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  358.558818][   T10]      net_rx_action+0x495/0xbe0
[  358.558818][   T10]      __do_softirq+0x1b5/0x7f6
[  358.558818][   T10] 
[  358.560680][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  358.560680][   T10]      netdev_get_by_index+0x5e/0x80
[  358.560680][   T10]      fib6_nh_init+0x3d8/0x1580
[  358.560680][   T10]      ip6_route_info_create+0xf18/0x17d0
[  358.560680][   T10]      ip6_route_add+0x1c/0x140
[  358.560680][   T10]      addrconf_prefix_route+0x2a6/0x430
[  358.560680][   T10]      inet6_addr_add+0x4f8/0xa40
[  358.560680][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  358.560680][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  358.560680][   T10]      netlink_rcv_skb+0x130/0x360
[  358.560680][   T10]      netlink_unicast+0x449/0x710
[  358.560680][   T10]      netlink_sendmsg+0x723/0xbe0
[  358.560680][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  358.560680][   T10]      ___sys_sendmsg+0xee/0x170
[  358.560680][   T10]      __sys_sendmsg+0xcd/0x170
[  358.560680][   T10]      do_syscall_64+0xc6/0x1e0
[  358.560680][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  358.560680][   T10] 
[  358.563166][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  358.563166][   T10]      netdev_get_by_index+0x5e/0x80
[  358.563166][   T10]      fib6_nh_init+0x3d8/0x1580
[  358.563166][   T10]      ip6_route_info_create+0xf18/0x17d0
[  358.563166][   T10]      addrconf_f6i_alloc+0x315/0x560
[  358.563166][   T10]      ipv6_add_addr+0x411/0x2000
[  358.563166][   T10]      inet6_addr_add+0x30e/0xa40
[  358.563166][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  358.563166][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  358.563166][   T10]      netlink_rcv_skb+0x130/0x360
[  358.563166][   T10]      netlink_unicast+0x449/0x710
[  358.563166][   T10]      netlink_sendmsg+0x723/0xbe0
[  358.563166][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  358.563166][   T10]      ___sys_sendmsg+0xee/0x170
[  358.563166][   T10]      __sys_sendmsg+0xcd/0x170
[  358.563166][   T10]      do_syscall_64+0xc6/0x1e0
[  358.563166][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  358.563166][   T10] 
[  358.565636][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  358.565636][   T10]      netdev_get_by_index+0x5e/0x80
[  358.565636][   T10]      fib6_nh_init+0x3d8/0x1580
[  358.565636][   T10]      ip6_route_info_create+0xf18/0x17d0
[  358.565636][   T10]      ip6_route_add+0x1c/0x140
[  358.565636][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  358.565636][   T10]      addrconf_add_dev+0xe2/0x170
[  358.565636][   T10]      inet6_addr_add+0x12f/0xa40
[  358.565636][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  358.565636][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  358.565636][   T10]      netlink_rcv_skb+0x130/0x360
[  358.565636][   T10]      netlink_unicast+0x449/0x710
[  358.565636][   T10]      netlink_sendmsg+0x723/0xbe0
[  358.565636][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  358.565636][   T10]      ___sys_sendmsg+0xee/0x170
[  358.565636][   T10]      __sys_sendmsg+0xcd/0x170
[  358.565636][   T10]      do_syscall_64+0xc6/0x1e0
[  358.565636][   T10] 
[  358.567844][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  358.567844][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  358.567844][   T10]      ipv6_find_idev+0x102/0x170
[  358.567844][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  358.567844][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  358.567844][   T10]      netlink_rcv_skb+0x130/0x360
[  358.567844][   T10]      netlink_unicast+0x449/0x710
[  358.567844][   T10]      netlink_sendmsg+0x723/0xbe0
[  358.567844][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  358.567844][   T10]      ___sys_sendmsg+0xee/0x170
[  358.567844][   T10]      __sys_sendmsg+0xcd/0x170
[  358.567844][   T10]      do_syscall_64+0xc6/0x1e0
[  358.567844][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  358.567844][   T10] 
[  358.569567][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  358.569567][   T10]      neigh_parms_alloc+0x1e5/0x510
[  358.569567][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  358.569567][   T10]      ipv6_find_idev+0x102/0x170
[  358.569567][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  358.569567][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  358.569567][   T10]      netlink_rcv_skb+0x130/0x360
[  358.569567][   T10]      netlink_unicast+0x449/0x710
[  358.569567][   T10]      netlink_sendmsg+0x723/0xbe0
[  358.569567][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  358.569567][   T10]      ___sys_sendmsg+0xee/0x170
[  358.569567][   T10]      __sys_sendmsg+0xcd/0x170
[  358.569567][   T10]      do_syscall_64+0xc6/0x1e0
[  358.569567][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  358.569567][   T10] 
[  368.801781][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  368.802322][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  368.802322][   T10]      dst_init+0x84/0x4a0
[  368.802322][   T10]      dst_alloc+0x97/0x150
[  368.802322][   T10]      ip6_dst_alloc+0x23/0x90
[  368.802322][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  368.802322][   T10]      ip6_pol_route+0x56f/0x840
[  368.802322][   T10]      fib6_rule_lookup+0x456/0x630
[  368.802322][   T10]      ip6_route_input+0x59c/0xa50
[  368.802322][   T10]      ipv6_rcv+0x397/0x810
[  368.802322][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  368.802322][   T10]      process_backlog+0x101/0x620
[  368.802322][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  368.802322][   T10]      net_rx_action+0x495/0xbe0
[  368.802322][   T10]      __do_softirq+0x1b5/0x7f6
[  368.802322][   T10] 
[  368.804197][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  368.804197][   T10]      netdev_get_by_index+0x5e/0x80
[  368.804197][   T10]      fib6_nh_init+0x3d8/0x1580
[  368.804197][   T10]      ip6_route_info_create+0xf18/0x17d0
[  368.804197][   T10]      ip6_route_add+0x1c/0x140
[  368.804197][   T10]      addrconf_prefix_route+0x2a6/0x430
[  368.804197][   T10]      inet6_addr_add+0x4f8/0xa40
[  368.804197][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  368.804197][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  368.804197][   T10]      netlink_rcv_skb+0x130/0x360
[  368.804197][   T10]      netlink_unicast+0x449/0x710
[  368.804197][   T10]      netlink_sendmsg+0x723/0xbe0
[  368.804197][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  368.804197][   T10]      ___sys_sendmsg+0xee/0x170
[  368.804197][   T10]      __sys_sendmsg+0xcd/0x170
[  368.804197][   T10]      do_syscall_64+0xc6/0x1e0
[  368.804197][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  368.804197][   T10] 
[  368.806418][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  368.806418][   T10]      netdev_get_by_index+0x5e/0x80
[  368.806418][   T10]      fib6_nh_init+0x3d8/0x1580
[  368.806418][   T10]      ip6_route_info_create+0xf18/0x17d0
[  368.806418][   T10]      addrconf_f6i_alloc+0x315/0x560
[  368.806418][   T10]      ipv6_add_addr+0x411/0x2000
[  368.806418][   T10]      inet6_addr_add+0x30e/0xa40
[  368.806418][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  368.806418][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  368.806418][   T10]      netlink_rcv_skb+0x130/0x360
[  368.806418][   T10]      netlink_unicast+0x449/0x710
[  368.806418][   T10]      netlink_sendmsg+0x723/0xbe0
[  368.806418][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  368.806418][   T10]      ___sys_sendmsg+0xee/0x170
[  368.806418][   T10]      __sys_sendmsg+0xcd/0x170
[  368.806418][   T10]      do_syscall_64+0xc6/0x1e0
[  368.806418][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  368.806418][   T10] 
[  368.808677][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  368.808677][   T10]      netdev_get_by_index+0x5e/0x80
[  368.808677][   T10]      fib6_nh_init+0x3d8/0x1580
[  368.808677][   T10]      ip6_route_info_create+0xf18/0x17d0
[  368.808677][   T10]      ip6_route_add+0x1c/0x140
[  368.808677][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  368.808677][   T10]      addrconf_add_dev+0xe2/0x170
[  368.808677][   T10]      inet6_addr_add+0x12f/0xa40
[  368.808677][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  368.808677][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  368.808677][   T10]      netlink_rcv_skb+0x130/0x360
[  368.808677][   T10]      netlink_unicast+0x449/0x710
[  368.808677][   T10]      netlink_sendmsg+0x723/0xbe0
[  368.808677][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  368.808677][   T10]      ___sys_sendmsg+0xee/0x170
[  368.808677][   T10]      __sys_sendmsg+0xcd/0x170
[  368.808677][   T10]      do_syscall_64+0xc6/0x1e0
[  368.808677][   T10] 
[  368.810951][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  368.810951][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  368.810951][   T10]      ipv6_find_idev+0x102/0x170
[  368.810951][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  368.810951][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  368.810951][   T10]      netlink_rcv_skb+0x130/0x360
[  368.810951][   T10]      netlink_unicast+0x449/0x710
[  368.810951][   T10]      netlink_sendmsg+0x723/0xbe0
[  368.810951][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  368.810951][   T10]      ___sys_sendmsg+0xee/0x170
[  368.810951][   T10]      __sys_sendmsg+0xcd/0x170
[  368.810951][   T10]      do_syscall_64+0xc6/0x1e0
[  368.810951][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  368.810951][   T10] 
[  368.812671][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  368.812671][   T10]      neigh_parms_alloc+0x1e5/0x510
[  368.812671][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  368.812671][   T10]      ipv6_find_idev+0x102/0x170
[  368.812671][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  368.812671][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  368.812671][   T10]      netlink_rcv_skb+0x130/0x360
[  368.812671][   T10]      netlink_unicast+0x449/0x710
[  368.812671][   T10]      netlink_sendmsg+0x723/0xbe0
[  368.812671][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  368.812671][   T10]      ___sys_sendmsg+0xee/0x170
[  368.812671][   T10]      __sys_sendmsg+0xcd/0x170
[  368.812671][   T10]      do_syscall_64+0xc6/0x1e0
[  368.812671][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  368.812671][   T10] 
[  368.814840][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  368.815105][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  368.815105][   T10]      dst_init+0x84/0x4a0
[  368.815105][   T10]      dst_alloc+0x97/0x150
[  368.815105][   T10]      ip6_dst_alloc+0x23/0x90
[  368.815105][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  368.815105][   T10]      ip6_pol_route+0x56f/0x840
[  368.815105][   T10]      fib6_rule_lookup+0x456/0x630
[  368.815105][   T10]      ip6_route_input+0x59c/0xa50
[  368.815105][   T10]      ipv6_rcv+0x397/0x810
[  368.815105][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  368.815105][   T10]      process_backlog+0x101/0x620
[  368.815105][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  368.815105][   T10]      net_rx_action+0x495/0xbe0
[  368.815105][   T10]      __do_softirq+0x1b5/0x7f6
[  368.815105][   T10] 
[  368.816933][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  368.816933][   T10]      netdev_get_by_index+0x5e/0x80
[  368.816933][   T10]      fib6_nh_init+0x3d8/0x1580
[  368.816933][   T10]      ip6_route_info_create+0xf18/0x17d0
[  368.816933][   T10]      ip6_route_add+0x1c/0x140
[  368.816933][   T10]      addrconf_prefix_route+0x2a6/0x430
[  368.816933][   T10]      inet6_addr_add+0x4f8/0xa40
[  368.816933][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  368.816933][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  368.816933][   T10]      netlink_rcv_skb+0x130/0x360
[  368.816933][   T10]      netlink_unicast+0x449/0x710
[  368.816933][   T10]      netlink_sendmsg+0x723/0xbe0
[  368.816933][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  368.816933][   T10]      ___sys_sendmsg+0xee/0x170
[  368.816933][   T10]      __sys_sendmsg+0xcd/0x170
[  368.816933][   T10]      do_syscall_64+0xc6/0x1e0
[  368.816933][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  368.816933][   T10] 
[  368.819156][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  368.819156][   T10]      netdev_get_by_index+0x5e/0x80
[  368.819156][   T10]      fib6_nh_init+0x3d8/0x1580
[  368.819156][   T10]      ip6_route_info_create+0xf18/0x17d0
[  368.819156][   T10]      addrconf_f6i_alloc+0x315/0x560
[  368.819156][   T10]      ipv6_add_addr+0x411/0x2000
[  368.819156][   T10]      inet6_addr_add+0x30e/0xa40
[  368.819156][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  368.819156][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  368.819156][   T10]      netlink_rcv_skb+0x130/0x360
[  368.819156][   T10]      netlink_unicast+0x449/0x710
[  368.819156][   T10]      netlink_sendmsg+0x723/0xbe0
[  368.819156][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  368.819156][   T10]      ___sys_sendmsg+0xee/0x170
[  368.819156][   T10]      __sys_sendmsg+0xcd/0x170
[  368.819156][   T10]      do_syscall_64+0xc6/0x1e0
[  368.819156][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  368.819156][   T10] 
[  368.821424][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  368.821424][   T10]      netdev_get_by_index+0x5e/0x80
[  368.821424][   T10]      fib6_nh_init+0x3d8/0x1580
[  368.821424][   T10]      ip6_route_info_create+0xf18/0x17d0
[  368.821424][   T10]      ip6_route_add+0x1c/0x140
[  368.821424][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  368.821424][   T10]      addrconf_add_dev+0xe2/0x170
[  368.821424][   T10]      inet6_addr_add+0x12f/0xa40
[  368.821424][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  368.821424][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  368.821424][   T10]      netlink_rcv_skb+0x130/0x360
[  368.821424][   T10]      netlink_unicast+0x449/0x710
[  368.821424][   T10]      netlink_sendmsg+0x723/0xbe0
[  368.821424][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  368.821424][   T10]      ___sys_sendmsg+0xee/0x170
[  368.821424][   T10]      __sys_sendmsg+0xcd/0x170
[  368.821424][   T10]      do_syscall_64+0xc6/0x1e0
[  368.821424][   T10] 
[  368.823619][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  368.823619][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  368.823619][   T10]      ipv6_find_idev+0x102/0x170
[  368.823619][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  368.823619][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  368.823619][   T10]      netlink_rcv_skb+0x130/0x360
[  368.823619][   T10]      netlink_unicast+0x449/0x710
[  368.823619][   T10]      netlink_sendmsg+0x723/0xbe0
[  368.823619][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  368.823619][   T10]      ___sys_sendmsg+0xee/0x170
[  368.823619][   T10]      __sys_sendmsg+0xcd/0x170
[  368.823619][   T10]      do_syscall_64+0xc6/0x1e0
[  368.823619][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  368.823619][   T10] 
[  368.825330][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  368.825330][   T10]      neigh_parms_alloc+0x1e5/0x510
[  368.825330][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  368.825330][   T10]      ipv6_find_idev+0x102/0x170
[  368.825330][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  368.825330][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  368.825330][   T10]      netlink_rcv_skb+0x130/0x360
[  368.825330][   T10]      netlink_unicast+0x449/0x710
[  368.825330][   T10]      netlink_sendmsg+0x723/0xbe0
[  368.825330][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  368.825330][   T10]      ___sys_sendmsg+0xee/0x170
[  368.825330][   T10]      __sys_sendmsg+0xcd/0x170
[  368.825330][   T10]      do_syscall_64+0xc6/0x1e0
[  368.825330][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  368.825330][   T10] 
[  369.961828][   T42] INFO: task modprobe:376 blocked for more than 245 seconds.
[  369.962213][   T42]       Not tainted 6.8.0-virtme #1
[  369.962360][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  369.962591][   T42] task:modprobe        state:D stack:25648 pid:376   tgid:376   ppid:39     flags:0x00004002
[  369.962917][   T42] Call Trace:
[  369.963033][   T42]  <TASK>
[  369.963114][   T42]  __schedule+0x705/0x1ac0
[  369.963270][   T42]  ? __pfx___schedule+0x10/0x10
[  369.963413][   T42]  ? schedule+0x1a5/0x210
[  369.963525][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  369.963686][   T42]  ? mark_lock+0x38/0x3e0
[  369.963794][   T42]  ? do_raw_spin_lock+0x131/0x270
[  369.963941][   T42]  ? schedule+0x1a5/0x210
[  369.964056][   T42]  schedule+0xdf/0x210
[  369.964168][   T42]  schedule_preempt_disabled+0x15/0x30
[  369.964313][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[  369.964459][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[  369.964635][   T42]  ? kasan_save_stack+0x34/0x50
[  369.964785][   T42]  ? kasan_save_stack+0x24/0x50
[  369.964930][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  369.965082][   T42]  ? lock_acquire+0x1c1/0x220
[  369.965222][   T42]  ? register_pernet_subsys+0x1a/0x50
[  369.965375][   T42]  down_write+0x1c9/0x200
[  369.965484][   T42]  ? __pfx_down_write+0x10/0x10
[  369.965634][   T42]  ? __pfx___lock_release+0x10/0x10
[  369.965801][   T42]  ? __pfx_nf_defrag_init+0x10/0x10 [nf_defrag_ipv4]
[  369.965985][   T42]  register_pernet_subsys+0x1a/0x50
[  369.966129][   T42]  nf_defrag_init+0x19/0xff0 [nf_defrag_ipv4]
[  369.966308][   T42]  do_one_initcall+0xc8/0x3f0
[  369.966452][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[  369.966601][   T42]  ? __create_object+0x5e/0xb0
[  369.966768][   T42]  ? kasan_unpoison+0x27/0x60
[  369.966918][   T42]  do_init_module+0x233/0x740
[  369.967074][   T42]  load_module+0x16b5/0x2350
[  369.967229][   T42]  ? __pfx_load_module+0x10/0x10
[  369.967369][   T42]  ? kernel_read_file+0x3d2/0x520
[  369.967514][   T42]  ? kernel_read_file+0x300/0x520
[  369.967678][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[  369.967831][   T42]  ? init_module_from_file+0xd2/0x130
[  369.967994][   T42]  init_module_from_file+0xd2/0x130
[  369.968137][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[  369.968315][   T42]  ? __lock_release+0x103/0x460
[  369.968459][   T42]  ? idempotent_init_module+0x32a/0x620
[  369.968614][   T42]  ? idempotent_init_module+0x32a/0x620
[  369.968768][   T42]  ? do_raw_spin_unlock+0x58/0x220
[  369.968921][   T42]  idempotent_init_module+0x342/0x620
[  369.969069][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[  369.969275][   T42]  __x64_sys_finit_module+0xbe/0x130
[  369.969418][   T42]  do_syscall_64+0xc6/0x1e0
[  369.969564][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  369.969757][   T42] RIP: 0033:0x7f5fd44b2e5d
[  369.969906][   T42] RSP: 002b:00007ffcc85e8928 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  369.970115][   T42] RAX: ffffffffffffffda RBX: 000055d19cb2e8d0 RCX: 00007f5fd44b2e5d
[  369.970335][   T42] RDX: 0000000000000000 RSI: 000055d18f6a6a2a RDI: 0000000000000000
[  369.970543][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 000055d19cb2dc10
[  369.970772][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055d18f6a6a2a
[  369.970989][   T42] R13: 000055d19cb2e880 R14: 000055d19cb2f710 R15: 0000000000000000
[  369.971212][   T42]  </TASK>
[  369.971321][   T42] 
[  369.971321][   T42] Showing all locks held in the system:
[  369.971518][   T42] 3 locks held by kworker/u16:0/10:
[  369.971660][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  369.971953][   T42]  #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  369.972203][   T42]  #2: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[  369.972454][   T42] 2 locks held by kworker/u20:0/39:
[  369.972594][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  369.972884][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  369.973194][   T42] 1 lock held by khungtaskd/42:
[  369.973330][   T42]  #0: ffffffff9b5591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[  369.973589][   T42] 1 lock held by modprobe/376:
[  369.973734][   T42]  #0: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[  369.974016][   T42] 
[  369.974086][   T42] =============================================
[  369.974086][   T42] 
[  379.065780][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  379.066244][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  379.066244][   T10]      dst_init+0x84/0x4a0
[  379.066244][   T10]      dst_alloc+0x97/0x150
[  379.066244][   T10]      ip6_dst_alloc+0x23/0x90
[  379.066244][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  379.066244][   T10]      ip6_pol_route+0x56f/0x840
[  379.066244][   T10]      fib6_rule_lookup+0x456/0x630
[  379.066244][   T10]      ip6_route_input+0x59c/0xa50
[  379.066244][   T10]      ipv6_rcv+0x397/0x810
[  379.066244][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  379.066244][   T10]      process_backlog+0x101/0x620
[  379.066244][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  379.066244][   T10]      net_rx_action+0x495/0xbe0
[  379.066244][   T10]      __do_softirq+0x1b5/0x7f6
[  379.066244][   T10] 
[  379.068360][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  379.068360][   T10]      netdev_get_by_index+0x5e/0x80
[  379.068360][   T10]      fib6_nh_init+0x3d8/0x1580
[  379.068360][   T10]      ip6_route_info_create+0xf18/0x17d0
[  379.068360][   T10]      ip6_route_add+0x1c/0x140
[  379.068360][   T10]      addrconf_prefix_route+0x2a6/0x430
[  379.068360][   T10]      inet6_addr_add+0x4f8/0xa40
[  379.068360][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  379.068360][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  379.068360][   T10]      netlink_rcv_skb+0x130/0x360
[  379.068360][   T10]      netlink_unicast+0x449/0x710
[  379.068360][   T10]      netlink_sendmsg+0x723/0xbe0
[  379.068360][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  379.068360][   T10]      ___sys_sendmsg+0xee/0x170
[  379.068360][   T10]      __sys_sendmsg+0xcd/0x170
[  379.068360][   T10]      do_syscall_64+0xc6/0x1e0
[  379.068360][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  379.068360][   T10] 
[  379.070623][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  379.070623][   T10]      netdev_get_by_index+0x5e/0x80
[  379.070623][   T10]      fib6_nh_init+0x3d8/0x1580
[  379.070623][   T10]      ip6_route_info_create+0xf18/0x17d0
[  379.070623][   T10]      addrconf_f6i_alloc+0x315/0x560
[  379.070623][   T10]      ipv6_add_addr+0x411/0x2000
[  379.070623][   T10]      inet6_addr_add+0x30e/0xa40
[  379.070623][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  379.070623][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  379.070623][   T10]      netlink_rcv_skb+0x130/0x360
[  379.070623][   T10]      netlink_unicast+0x449/0x710
[  379.070623][   T10]      netlink_sendmsg+0x723/0xbe0
[  379.070623][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  379.070623][   T10]      ___sys_sendmsg+0xee/0x170
[  379.070623][   T10]      __sys_sendmsg+0xcd/0x170
[  379.070623][   T10]      do_syscall_64+0xc6/0x1e0
[  379.070623][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  379.070623][   T10] 
[  379.072859][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  379.072859][   T10]      netdev_get_by_index+0x5e/0x80
[  379.072859][   T10]      fib6_nh_init+0x3d8/0x1580
[  379.072859][   T10]      ip6_route_info_create+0xf18/0x17d0
[  379.072859][   T10]      ip6_route_add+0x1c/0x140
[  379.072859][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  379.072859][   T10]      addrconf_add_dev+0xe2/0x170
[  379.072859][   T10]      inet6_addr_add+0x12f/0xa40
[  379.072859][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  379.072859][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  379.072859][   T10]      netlink_rcv_skb+0x130/0x360
[  379.072859][   T10]      netlink_unicast+0x449/0x710
[  379.072859][   T10]      netlink_sendmsg+0x723/0xbe0
[  379.072859][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  379.072859][   T10]      ___sys_sendmsg+0xee/0x170
[  379.072859][   T10]      __sys_sendmsg+0xcd/0x170
[  379.072859][   T10]      do_syscall_64+0xc6/0x1e0
[  379.072859][   T10] 
[  379.075092][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  379.075092][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  379.075092][   T10]      ipv6_find_idev+0x102/0x170
[  379.075092][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  379.075092][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  379.075092][   T10]      netlink_rcv_skb+0x130/0x360
[  379.075092][   T10]      netlink_unicast+0x449/0x710
[  379.075092][   T10]      netlink_sendmsg+0x723/0xbe0
[  379.075092][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  379.075092][   T10]      ___sys_sendmsg+0xee/0x170
[  379.075092][   T10]      __sys_sendmsg+0xcd/0x170
[  379.075092][   T10]      do_syscall_64+0xc6/0x1e0
[  379.075092][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  379.075092][   T10] 
[  379.076830][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  379.076830][   T10]      neigh_parms_alloc+0x1e5/0x510
[  379.076830][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  379.076830][   T10]      ipv6_find_idev+0x102/0x170
[  379.076830][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  379.076830][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  379.076830][   T10]      netlink_rcv_skb+0x130/0x360
[  379.076830][   T10]      netlink_unicast+0x449/0x710
[  379.076830][   T10]      netlink_sendmsg+0x723/0xbe0
[  379.076830][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  379.076830][   T10]      ___sys_sendmsg+0xee/0x170
[  379.076830][   T10]      __sys_sendmsg+0xcd/0x170
[  379.076830][   T10]      do_syscall_64+0xc6/0x1e0
[  379.076830][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  379.076830][   T10] 
[  379.078686][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  379.078947][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  379.078947][   T10]      dst_init+0x84/0x4a0
[  379.078947][   T10]      dst_alloc+0x97/0x150
[  379.078947][   T10]      ip6_dst_alloc+0x23/0x90
[  379.078947][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  379.078947][   T10]      ip6_pol_route+0x56f/0x840
[  379.078947][   T10]      fib6_rule_lookup+0x456/0x630
[  379.078947][   T10]      ip6_route_input+0x59c/0xa50
[  379.078947][   T10]      ipv6_rcv+0x397/0x810
[  379.078947][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  379.078947][   T10]      process_backlog+0x101/0x620
[  379.078947][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  379.078947][   T10]      net_rx_action+0x495/0xbe0
[  379.078947][   T10]      __do_softirq+0x1b5/0x7f6
[  379.078947][   T10] 
[  379.080773][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  379.080773][   T10]      netdev_get_by_index+0x5e/0x80
[  379.080773][   T10]      fib6_nh_init+0x3d8/0x1580
[  379.080773][   T10]      ip6_route_info_create+0xf18/0x17d0
[  379.080773][   T10]      ip6_route_add+0x1c/0x140
[  379.080773][   T10]      addrconf_prefix_route+0x2a6/0x430
[  379.080773][   T10]      inet6_addr_add+0x4f8/0xa40
[  379.080773][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  379.080773][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  379.080773][   T10]      netlink_rcv_skb+0x130/0x360
[  379.080773][   T10]      netlink_unicast+0x449/0x710
[  379.080773][   T10]      netlink_sendmsg+0x723/0xbe0
[  379.080773][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  379.080773][   T10]      ___sys_sendmsg+0xee/0x170
[  379.080773][   T10]      __sys_sendmsg+0xcd/0x170
[  379.080773][   T10]      do_syscall_64+0xc6/0x1e0
[  379.080773][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  379.080773][   T10] 
[  379.083057][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  379.083057][   T10]      netdev_get_by_index+0x5e/0x80
[  379.083057][   T10]      fib6_nh_init+0x3d8/0x1580
[  379.083057][   T10]      ip6_route_info_create+0xf18/0x17d0
[  379.083057][   T10]      addrconf_f6i_alloc+0x315/0x560
[  379.083057][   T10]      ipv6_add_addr+0x411/0x2000
[  379.083057][   T10]      inet6_addr_add+0x30e/0xa40
[  379.083057][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  379.083057][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  379.083057][   T10]      netlink_rcv_skb+0x130/0x360
[  379.083057][   T10]      netlink_unicast+0x449/0x710
[  379.083057][   T10]      netlink_sendmsg+0x723/0xbe0
[  379.083057][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  379.083057][   T10]      ___sys_sendmsg+0xee/0x170
[  379.083057][   T10]      __sys_sendmsg+0xcd/0x170
[  379.083057][   T10]      do_syscall_64+0xc6/0x1e0
[  379.083057][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  379.083057][   T10] 
[  379.085313][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  379.085313][   T10]      netdev_get_by_index+0x5e/0x80
[  379.085313][   T10]      fib6_nh_init+0x3d8/0x1580
[  379.085313][   T10]      ip6_route_info_create+0xf18/0x17d0
[  379.085313][   T10]      ip6_route_add+0x1c/0x140
[  379.085313][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  379.085313][   T10]      addrconf_add_dev+0xe2/0x170
[  379.085313][   T10]      inet6_addr_add+0x12f/0xa40
[  379.085313][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  379.085313][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  379.085313][   T10]      netlink_rcv_skb+0x130/0x360
[  379.085313][   T10]      netlink_unicast+0x449/0x710
[  379.085313][   T10]      netlink_sendmsg+0x723/0xbe0
[  379.085313][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  379.085313][   T10]      ___sys_sendmsg+0xee/0x170
[  379.085313][   T10]      __sys_sendmsg+0xcd/0x170
[  379.085313][   T10]      do_syscall_64+0xc6/0x1e0
[  379.085313][   T10] 
[  379.087533][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  379.087533][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  379.087533][   T10]      ipv6_find_idev+0x102/0x170
[  379.087533][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  379.087533][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  379.087533][   T10]      netlink_rcv_skb+0x130/0x360
[  379.087533][   T10]      netlink_unicast+0x449/0x710
[  379.087533][   T10]      netlink_sendmsg+0x723/0xbe0
[  379.087533][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  379.087533][   T10]      ___sys_sendmsg+0xee/0x170
[  379.087533][   T10]      __sys_sendmsg+0xcd/0x170
[  379.087533][   T10]      do_syscall_64+0xc6/0x1e0
[  379.087533][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  379.087533][   T10] 
[  379.089233][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  379.089233][   T10]      neigh_parms_alloc+0x1e5/0x510
[  379.089233][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  379.089233][   T10]      ipv6_find_idev+0x102/0x170
[  379.089233][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  379.089233][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  379.089233][   T10]      netlink_rcv_skb+0x130/0x360
[  379.089233][   T10]      netlink_unicast+0x449/0x710
[  379.089233][   T10]      netlink_sendmsg+0x723/0xbe0
[  379.089233][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  379.089233][   T10]      ___sys_sendmsg+0xee/0x170
[  379.089233][   T10]      __sys_sendmsg+0xcd/0x170
[  379.089233][   T10]      do_syscall_64+0xc6/0x1e0
[  379.089233][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  379.089233][   T10] 
[  389.329782][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  389.330228][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  389.330228][   T10]      dst_init+0x84/0x4a0
[  389.330228][   T10]      dst_alloc+0x97/0x150
[  389.330228][   T10]      ip6_dst_alloc+0x23/0x90
[  389.330228][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  389.330228][   T10]      ip6_pol_route+0x56f/0x840
[  389.330228][   T10]      fib6_rule_lookup+0x456/0x630
[  389.330228][   T10]      ip6_route_input+0x59c/0xa50
[  389.330228][   T10]      ipv6_rcv+0x397/0x810
[  389.330228][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  389.330228][   T10]      process_backlog+0x101/0x620
[  389.330228][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  389.330228][   T10]      net_rx_action+0x495/0xbe0
[  389.330228][   T10]      __do_softirq+0x1b5/0x7f6
[  389.330228][   T10] 
[  389.332116][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  389.332116][   T10]      netdev_get_by_index+0x5e/0x80
[  389.332116][   T10]      fib6_nh_init+0x3d8/0x1580
[  389.332116][   T10]      ip6_route_info_create+0xf18/0x17d0
[  389.332116][   T10]      ip6_route_add+0x1c/0x140
[  389.332116][   T10]      addrconf_prefix_route+0x2a6/0x430
[  389.332116][   T10]      inet6_addr_add+0x4f8/0xa40
[  389.332116][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  389.332116][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  389.332116][   T10]      netlink_rcv_skb+0x130/0x360
[  389.332116][   T10]      netlink_unicast+0x449/0x710
[  389.332116][   T10]      netlink_sendmsg+0x723/0xbe0
[  389.332116][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  389.332116][   T10]      ___sys_sendmsg+0xee/0x170
[  389.332116][   T10]      __sys_sendmsg+0xcd/0x170
[  389.332116][   T10]      do_syscall_64+0xc6/0x1e0
[  389.332116][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  389.332116][   T10] 
[  389.334361][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  389.334361][   T10]      netdev_get_by_index+0x5e/0x80
[  389.334361][   T10]      fib6_nh_init+0x3d8/0x1580
[  389.334361][   T10]      ip6_route_info_create+0xf18/0x17d0
[  389.334361][   T10]      addrconf_f6i_alloc+0x315/0x560
[  389.334361][   T10]      ipv6_add_addr+0x411/0x2000
[  389.334361][   T10]      inet6_addr_add+0x30e/0xa40
[  389.334361][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  389.334361][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  389.334361][   T10]      netlink_rcv_skb+0x130/0x360
[  389.334361][   T10]      netlink_unicast+0x449/0x710
[  389.334361][   T10]      netlink_sendmsg+0x723/0xbe0
[  389.334361][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  389.334361][   T10]      ___sys_sendmsg+0xee/0x170
[  389.334361][   T10]      __sys_sendmsg+0xcd/0x170
[  389.334361][   T10]      do_syscall_64+0xc6/0x1e0
[  389.334361][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  389.334361][   T10] 
[  389.336612][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  389.336612][   T10]      netdev_get_by_index+0x5e/0x80
[  389.336612][   T10]      fib6_nh_init+0x3d8/0x1580
[  389.336612][   T10]      ip6_route_info_create+0xf18/0x17d0
[  389.336612][   T10]      ip6_route_add+0x1c/0x140
[  389.336612][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  389.336612][   T10]      addrconf_add_dev+0xe2/0x170
[  389.336612][   T10]      inet6_addr_add+0x12f/0xa40
[  389.336612][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  389.336612][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  389.336612][   T10]      netlink_rcv_skb+0x130/0x360
[  389.336612][   T10]      netlink_unicast+0x449/0x710
[  389.336612][   T10]      netlink_sendmsg+0x723/0xbe0
[  389.336612][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  389.336612][   T10]      ___sys_sendmsg+0xee/0x170
[  389.336612][   T10]      __sys_sendmsg+0xcd/0x170
[  389.336612][   T10]      do_syscall_64+0xc6/0x1e0
[  389.336612][   T10] 
[  389.338842][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  389.338842][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  389.338842][   T10]      ipv6_find_idev+0x102/0x170
[  389.338842][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  389.338842][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  389.338842][   T10]      netlink_rcv_skb+0x130/0x360
[  389.338842][   T10]      netlink_unicast+0x449/0x710
[  389.338842][   T10]      netlink_sendmsg+0x723/0xbe0
[  389.338842][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  389.338842][   T10]      ___sys_sendmsg+0xee/0x170
[  389.338842][   T10]      __sys_sendmsg+0xcd/0x170
[  389.338842][   T10]      do_syscall_64+0xc6/0x1e0
[  389.338842][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  389.338842][   T10] 
[  389.340569][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  389.340569][   T10]      neigh_parms_alloc+0x1e5/0x510
[  389.340569][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  389.340569][   T10]      ipv6_find_idev+0x102/0x170
[  389.340569][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  389.340569][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  389.340569][   T10]      netlink_rcv_skb+0x130/0x360
[  389.340569][   T10]      netlink_unicast+0x449/0x710
[  389.340569][   T10]      netlink_sendmsg+0x723/0xbe0
[  389.340569][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  389.340569][   T10]      ___sys_sendmsg+0xee/0x170
[  389.340569][   T10]      __sys_sendmsg+0xcd/0x170
[  389.340569][   T10]      do_syscall_64+0xc6/0x1e0
[  389.340569][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  389.340569][   T10] 
[  389.342478][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  389.342754][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  389.342754][   T10]      dst_init+0x84/0x4a0
[  389.342754][   T10]      dst_alloc+0x97/0x150
[  389.342754][   T10]      ip6_dst_alloc+0x23/0x90
[  389.342754][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  389.342754][   T10]      ip6_pol_route+0x56f/0x840
[  389.342754][   T10]      fib6_rule_lookup+0x456/0x630
[  389.342754][   T10]      ip6_route_input+0x59c/0xa50
[  389.342754][   T10]      ipv6_rcv+0x397/0x810
[  389.342754][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  389.342754][   T10]      process_backlog+0x101/0x620
[  389.342754][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  389.342754][   T10]      net_rx_action+0x495/0xbe0
[  389.342754][   T10]      __do_softirq+0x1b5/0x7f6
[  389.342754][   T10] 
[  389.344596][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  389.344596][   T10]      netdev_get_by_index+0x5e/0x80
[  389.344596][   T10]      fib6_nh_init+0x3d8/0x1580
[  389.344596][   T10]      ip6_route_info_create+0xf18/0x17d0
[  389.344596][   T10]      ip6_route_add+0x1c/0x140
[  389.344596][   T10]      addrconf_prefix_route+0x2a6/0x430
[  389.344596][   T10]      inet6_addr_add+0x4f8/0xa40
[  389.344596][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  389.344596][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  389.344596][   T10]      netlink_rcv_skb+0x130/0x360
[  389.344596][   T10]      netlink_unicast+0x449/0x710
[  389.344596][   T10]      netlink_sendmsg+0x723/0xbe0
[  389.344596][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  389.344596][   T10]      ___sys_sendmsg+0xee/0x170
[  389.344596][   T10]      __sys_sendmsg+0xcd/0x170
[  389.344596][   T10]      do_syscall_64+0xc6/0x1e0
[  389.344596][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  389.344596][   T10] 
[  389.346813][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  389.346813][   T10]      netdev_get_by_index+0x5e/0x80
[  389.346813][   T10]      fib6_nh_init+0x3d8/0x1580
[  389.346813][   T10]      ip6_route_info_create+0xf18/0x17d0
[  389.346813][   T10]      addrconf_f6i_alloc+0x315/0x560
[  389.346813][   T10]      ipv6_add_addr+0x411/0x2000
[  389.346813][   T10]      inet6_addr_add+0x30e/0xa40
[  389.346813][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  389.346813][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  389.346813][   T10]      netlink_rcv_skb+0x130/0x360
[  389.346813][   T10]      netlink_unicast+0x449/0x710
[  389.346813][   T10]      netlink_sendmsg+0x723/0xbe0
[  389.346813][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  389.346813][   T10]      ___sys_sendmsg+0xee/0x170
[  389.346813][   T10]      __sys_sendmsg+0xcd/0x170
[  389.346813][   T10]      do_syscall_64+0xc6/0x1e0
[  389.346813][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  389.346813][   T10] 
[  389.349055][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  389.349055][   T10]      netdev_get_by_index+0x5e/0x80
[  389.349055][   T10]      fib6_nh_init+0x3d8/0x1580
[  389.349055][   T10]      ip6_route_info_create+0xf18/0x17d0
[  389.349055][   T10]      ip6_route_add+0x1c/0x140
[  389.349055][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  389.349055][   T10]      addrconf_add_dev+0xe2/0x170
[  389.349055][   T10]      inet6_addr_add+0x12f/0xa40
[  389.349055][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  389.349055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  389.349055][   T10]      netlink_rcv_skb+0x130/0x360
[  389.349055][   T10]      netlink_unicast+0x449/0x710
[  389.349055][   T10]      netlink_sendmsg+0x723/0xbe0
[  389.349055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  389.349055][   T10]      ___sys_sendmsg+0xee/0x170
[  389.349055][   T10]      __sys_sendmsg+0xcd/0x170
[  389.349055][   T10]      do_syscall_64+0xc6/0x1e0
[  389.349055][   T10] 
[  389.351259][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  389.351259][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  389.351259][   T10]      ipv6_find_idev+0x102/0x170
[  389.351259][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  389.351259][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  389.351259][   T10]      netlink_rcv_skb+0x130/0x360
[  389.351259][   T10]      netlink_unicast+0x449/0x710
[  389.351259][   T10]      netlink_sendmsg+0x723/0xbe0
[  389.351259][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  389.351259][   T10]      ___sys_sendmsg+0xee/0x170
[  389.351259][   T10]      __sys_sendmsg+0xcd/0x170
[  389.351259][   T10]      do_syscall_64+0xc6/0x1e0
[  389.351259][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  389.351259][   T10] 
[  389.352985][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  389.352985][   T10]      neigh_parms_alloc+0x1e5/0x510
[  389.352985][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  389.352985][   T10]      ipv6_find_idev+0x102/0x170
[  389.352985][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  389.352985][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  389.352985][   T10]      netlink_rcv_skb+0x130/0x360
[  389.352985][   T10]      netlink_unicast+0x449/0x710
[  389.352985][   T10]      netlink_sendmsg+0x723/0xbe0
[  389.352985][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  389.352985][   T10]      ___sys_sendmsg+0xee/0x170
[  389.352985][   T10]      __sys_sendmsg+0xcd/0x170
[  389.352985][   T10]      do_syscall_64+0xc6/0x1e0
[  389.352985][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  389.352985][   T10] 
[  399.593779][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  399.594297][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  399.594297][   T10]      dst_init+0x84/0x4a0
[  399.594297][   T10]      dst_alloc+0x97/0x150
[  399.594297][   T10]      ip6_dst_alloc+0x23/0x90
[  399.594297][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  399.594297][   T10]      ip6_pol_route+0x56f/0x840
[  399.594297][   T10]      fib6_rule_lookup+0x456/0x630
[  399.594297][   T10]      ip6_route_input+0x59c/0xa50
[  399.594297][   T10]      ipv6_rcv+0x397/0x810
[  399.594297][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  399.594297][   T10]      process_backlog+0x101/0x620
[  399.594297][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  399.594297][   T10]      net_rx_action+0x495/0xbe0
[  399.594297][   T10]      __do_softirq+0x1b5/0x7f6
[  399.594297][   T10] 
[  399.596358][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  399.596358][   T10]      netdev_get_by_index+0x5e/0x80
[  399.596358][   T10]      fib6_nh_init+0x3d8/0x1580
[  399.596358][   T10]      ip6_route_info_create+0xf18/0x17d0
[  399.596358][   T10]      ip6_route_add+0x1c/0x140
[  399.596358][   T10]      addrconf_prefix_route+0x2a6/0x430
[  399.596358][   T10]      inet6_addr_add+0x4f8/0xa40
[  399.596358][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  399.596358][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  399.596358][   T10]      netlink_rcv_skb+0x130/0x360
[  399.596358][   T10]      netlink_unicast+0x449/0x710
[  399.596358][   T10]      netlink_sendmsg+0x723/0xbe0
[  399.596358][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  399.596358][   T10]      ___sys_sendmsg+0xee/0x170
[  399.596358][   T10]      __sys_sendmsg+0xcd/0x170
[  399.596358][   T10]      do_syscall_64+0xc6/0x1e0
[  399.596358][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  399.596358][   T10] 
[  399.598610][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  399.598610][   T10]      netdev_get_by_index+0x5e/0x80
[  399.598610][   T10]      fib6_nh_init+0x3d8/0x1580
[  399.598610][   T10]      ip6_route_info_create+0xf18/0x17d0
[  399.598610][   T10]      addrconf_f6i_alloc+0x315/0x560
[  399.598610][   T10]      ipv6_add_addr+0x411/0x2000
[  399.598610][   T10]      inet6_addr_add+0x30e/0xa40
[  399.598610][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  399.598610][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  399.598610][   T10]      netlink_rcv_skb+0x130/0x360
[  399.598610][   T10]      netlink_unicast+0x449/0x710
[  399.598610][   T10]      netlink_sendmsg+0x723/0xbe0
[  399.598610][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  399.598610][   T10]      ___sys_sendmsg+0xee/0x170
[  399.598610][   T10]      __sys_sendmsg+0xcd/0x170
[  399.598610][   T10]      do_syscall_64+0xc6/0x1e0
[  399.598610][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  399.598610][   T10] 
[  399.600846][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  399.600846][   T10]      netdev_get_by_index+0x5e/0x80
[  399.600846][   T10]      fib6_nh_init+0x3d8/0x1580
[  399.600846][   T10]      ip6_route_info_create+0xf18/0x17d0
[  399.600846][   T10]      ip6_route_add+0x1c/0x140
[  399.600846][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  399.600846][   T10]      addrconf_add_dev+0xe2/0x170
[  399.600846][   T10]      inet6_addr_add+0x12f/0xa40
[  399.600846][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  399.600846][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  399.600846][   T10]      netlink_rcv_skb+0x130/0x360
[  399.600846][   T10]      netlink_unicast+0x449/0x710
[  399.600846][   T10]      netlink_sendmsg+0x723/0xbe0
[  399.600846][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  399.600846][   T10]      ___sys_sendmsg+0xee/0x170
[  399.600846][   T10]      __sys_sendmsg+0xcd/0x170
[  399.600846][   T10]      do_syscall_64+0xc6/0x1e0
[  399.600846][   T10] 
[  399.603032][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  399.603032][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  399.603032][   T10]      ipv6_find_idev+0x102/0x170
[  399.603032][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  399.603032][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  399.603032][   T10]      netlink_rcv_skb+0x130/0x360
[  399.603032][   T10]      netlink_unicast+0x449/0x710
[  399.603032][   T10]      netlink_sendmsg+0x723/0xbe0
[  399.603032][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  399.603032][   T10]      ___sys_sendmsg+0xee/0x170
[  399.603032][   T10]      __sys_sendmsg+0xcd/0x170
[  399.603032][   T10]      do_syscall_64+0xc6/0x1e0
[  399.603032][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  399.603032][   T10] 
[  399.604724][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  399.604724][   T10]      neigh_parms_alloc+0x1e5/0x510
[  399.604724][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  399.604724][   T10]      ipv6_find_idev+0x102/0x170
[  399.604724][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  399.604724][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  399.604724][   T10]      netlink_rcv_skb+0x130/0x360
[  399.604724][   T10]      netlink_unicast+0x449/0x710
[  399.604724][   T10]      netlink_sendmsg+0x723/0xbe0
[  399.604724][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  399.604724][   T10]      ___sys_sendmsg+0xee/0x170
[  399.604724][   T10]      __sys_sendmsg+0xcd/0x170
[  399.604724][   T10]      do_syscall_64+0xc6/0x1e0
[  399.604724][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  399.604724][   T10] 
[  399.606583][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  399.606863][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  399.606863][   T10]      dst_init+0x84/0x4a0
[  399.606863][   T10]      dst_alloc+0x97/0x150
[  399.606863][   T10]      ip6_dst_alloc+0x23/0x90
[  399.606863][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  399.606863][   T10]      ip6_pol_route+0x56f/0x840
[  399.606863][   T10]      fib6_rule_lookup+0x456/0x630
[  399.606863][   T10]      ip6_route_input+0x59c/0xa50
[  399.606863][   T10]      ipv6_rcv+0x397/0x810
[  399.606863][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  399.606863][   T10]      process_backlog+0x101/0x620
[  399.606863][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  399.606863][   T10]      net_rx_action+0x495/0xbe0
[  399.606863][   T10]      __do_softirq+0x1b5/0x7f6
[  399.606863][   T10] 
[  399.608698][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  399.608698][   T10]      netdev_get_by_index+0x5e/0x80
[  399.608698][   T10]      fib6_nh_init+0x3d8/0x1580
[  399.608698][   T10]      ip6_route_info_create+0xf18/0x17d0
[  399.608698][   T10]      ip6_route_add+0x1c/0x140
[  399.608698][   T10]      addrconf_prefix_route+0x2a6/0x430
[  399.608698][   T10]      inet6_addr_add+0x4f8/0xa40
[  399.608698][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  399.608698][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  399.608698][   T10]      netlink_rcv_skb+0x130/0x360
[  399.608698][   T10]      netlink_unicast+0x449/0x710
[  399.608698][   T10]      netlink_sendmsg+0x723/0xbe0
[  399.608698][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  399.608698][   T10]      ___sys_sendmsg+0xee/0x170
[  399.608698][   T10]      __sys_sendmsg+0xcd/0x170
[  399.608698][   T10]      do_syscall_64+0xc6/0x1e0
[  399.608698][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  399.608698][   T10] 
[  399.610934][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  399.610934][   T10]      netdev_get_by_index+0x5e/0x80
[  399.610934][   T10]      fib6_nh_init+0x3d8/0x1580
[  399.610934][   T10]      ip6_route_info_create+0xf18/0x17d0
[  399.610934][   T10]      addrconf_f6i_alloc+0x315/0x560
[  399.610934][   T10]      ipv6_add_addr+0x411/0x2000
[  399.610934][   T10]      inet6_addr_add+0x30e/0xa40
[  399.610934][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  399.610934][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  399.610934][   T10]      netlink_rcv_skb+0x130/0x360
[  399.610934][   T10]      netlink_unicast+0x449/0x710
[  399.610934][   T10]      netlink_sendmsg+0x723/0xbe0
[  399.610934][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  399.610934][   T10]      ___sys_sendmsg+0xee/0x170
[  399.610934][   T10]      __sys_sendmsg+0xcd/0x170
[  399.610934][   T10]      do_syscall_64+0xc6/0x1e0
[  399.610934][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  399.610934][   T10] 
[  399.613117][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  399.613117][   T10]      netdev_get_by_index+0x5e/0x80
[  399.613117][   T10]      fib6_nh_init+0x3d8/0x1580
[  399.613117][   T10]      ip6_route_info_create+0xf18/0x17d0
[  399.613117][   T10]      ip6_route_add+0x1c/0x140
[  399.613117][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  399.613117][   T10]      addrconf_add_dev+0xe2/0x170
[  399.613117][   T10]      inet6_addr_add+0x12f/0xa40
[  399.613117][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  399.613117][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  399.613117][   T10]      netlink_rcv_skb+0x130/0x360
[  399.613117][   T10]      netlink_unicast+0x449/0x710
[  399.613117][   T10]      netlink_sendmsg+0x723/0xbe0
[  399.613117][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  399.613117][   T10]      ___sys_sendmsg+0xee/0x170
[  399.613117][   T10]      __sys_sendmsg+0xcd/0x170
[  399.613117][   T10]      do_syscall_64+0xc6/0x1e0
[  399.613117][   T10] 
[  399.615339][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  399.615339][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  399.615339][   T10]      ipv6_find_idev+0x102/0x170
[  399.615339][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  399.615339][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  399.615339][   T10]      netlink_rcv_skb+0x130/0x360
[  399.615339][   T10]      netlink_unicast+0x449/0x710
[  399.615339][   T10]      netlink_sendmsg+0x723/0xbe0
[  399.615339][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  399.615339][   T10]      ___sys_sendmsg+0xee/0x170
[  399.615339][   T10]      __sys_sendmsg+0xcd/0x170
[  399.615339][   T10]      do_syscall_64+0xc6/0x1e0
[  399.615339][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  399.615339][   T10] 
[  399.617055][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  399.617055][   T10]      neigh_parms_alloc+0x1e5/0x510
[  399.617055][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  399.617055][   T10]      ipv6_find_idev+0x102/0x170
[  399.617055][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  399.617055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  399.617055][   T10]      netlink_rcv_skb+0x130/0x360
[  399.617055][   T10]      netlink_unicast+0x449/0x710
[  399.617055][   T10]      netlink_sendmsg+0x723/0xbe0
[  399.617055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  399.617055][   T10]      ___sys_sendmsg+0xee/0x170
[  399.617055][   T10]      __sys_sendmsg+0xcd/0x170
[  399.617055][   T10]      do_syscall_64+0xc6/0x1e0
[  399.617055][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  399.617055][   T10] 
[  409.857779][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  409.858222][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  409.858222][   T10]      dst_init+0x84/0x4a0
[  409.858222][   T10]      dst_alloc+0x97/0x150
[  409.858222][   T10]      ip6_dst_alloc+0x23/0x90
[  409.858222][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  409.858222][   T10]      ip6_pol_route+0x56f/0x840
[  409.858222][   T10]      fib6_rule_lookup+0x456/0x630
[  409.858222][   T10]      ip6_route_input+0x59c/0xa50
[  409.858222][   T10]      ipv6_rcv+0x397/0x810
[  409.858222][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  409.858222][   T10]      process_backlog+0x101/0x620
[  409.858222][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  409.858222][   T10]      net_rx_action+0x495/0xbe0
[  409.858222][   T10]      __do_softirq+0x1b5/0x7f6
[  409.858222][   T10] 
[  409.860103][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  409.860103][   T10]      netdev_get_by_index+0x5e/0x80
[  409.860103][   T10]      fib6_nh_init+0x3d8/0x1580
[  409.860103][   T10]      ip6_route_info_create+0xf18/0x17d0
[  409.860103][   T10]      ip6_route_add+0x1c/0x140
[  409.860103][   T10]      addrconf_prefix_route+0x2a6/0x430
[  409.860103][   T10]      inet6_addr_add+0x4f8/0xa40
[  409.860103][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  409.860103][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  409.860103][   T10]      netlink_rcv_skb+0x130/0x360
[  409.860103][   T10]      netlink_unicast+0x449/0x710
[  409.860103][   T10]      netlink_sendmsg+0x723/0xbe0
[  409.860103][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  409.860103][   T10]      ___sys_sendmsg+0xee/0x170
[  409.860103][   T10]      __sys_sendmsg+0xcd/0x170
[  409.860103][   T10]      do_syscall_64+0xc6/0x1e0
[  409.860103][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  409.860103][   T10] 
[  409.862350][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  409.862350][   T10]      netdev_get_by_index+0x5e/0x80
[  409.862350][   T10]      fib6_nh_init+0x3d8/0x1580
[  409.862350][   T10]      ip6_route_info_create+0xf18/0x17d0
[  409.862350][   T10]      addrconf_f6i_alloc+0x315/0x560
[  409.862350][   T10]      ipv6_add_addr+0x411/0x2000
[  409.862350][   T10]      inet6_addr_add+0x30e/0xa40
[  409.862350][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  409.862350][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  409.862350][   T10]      netlink_rcv_skb+0x130/0x360
[  409.862350][   T10]      netlink_unicast+0x449/0x710
[  409.862350][   T10]      netlink_sendmsg+0x723/0xbe0
[  409.862350][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  409.862350][   T10]      ___sys_sendmsg+0xee/0x170
[  409.862350][   T10]      __sys_sendmsg+0xcd/0x170
[  409.862350][   T10]      do_syscall_64+0xc6/0x1e0
[  409.862350][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  409.862350][   T10] 
[  409.864605][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  409.864605][   T10]      netdev_get_by_index+0x5e/0x80
[  409.864605][   T10]      fib6_nh_init+0x3d8/0x1580
[  409.864605][   T10]      ip6_route_info_create+0xf18/0x17d0
[  409.864605][   T10]      ip6_route_add+0x1c/0x140
[  409.864605][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  409.864605][   T10]      addrconf_add_dev+0xe2/0x170
[  409.864605][   T10]      inet6_addr_add+0x12f/0xa40
[  409.864605][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  409.864605][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  409.864605][   T10]      netlink_rcv_skb+0x130/0x360
[  409.864605][   T10]      netlink_unicast+0x449/0x710
[  409.864605][   T10]      netlink_sendmsg+0x723/0xbe0
[  409.864605][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  409.864605][   T10]      ___sys_sendmsg+0xee/0x170
[  409.864605][   T10]      __sys_sendmsg+0xcd/0x170
[  409.864605][   T10]      do_syscall_64+0xc6/0x1e0
[  409.864605][   T10] 
[  409.866797][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  409.866797][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  409.866797][   T10]      ipv6_find_idev+0x102/0x170
[  409.866797][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  409.866797][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  409.866797][   T10]      netlink_rcv_skb+0x130/0x360
[  409.866797][   T10]      netlink_unicast+0x449/0x710
[  409.866797][   T10]      netlink_sendmsg+0x723/0xbe0
[  409.866797][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  409.866797][   T10]      ___sys_sendmsg+0xee/0x170
[  409.866797][   T10]      __sys_sendmsg+0xcd/0x170
[  409.866797][   T10]      do_syscall_64+0xc6/0x1e0
[  409.866797][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  409.866797][   T10] 
[  409.868529][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  409.868529][   T10]      neigh_parms_alloc+0x1e5/0x510
[  409.868529][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  409.868529][   T10]      ipv6_find_idev+0x102/0x170
[  409.868529][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  409.868529][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  409.868529][   T10]      netlink_rcv_skb+0x130/0x360
[  409.868529][   T10]      netlink_unicast+0x449/0x710
[  409.868529][   T10]      netlink_sendmsg+0x723/0xbe0
[  409.868529][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  409.868529][   T10]      ___sys_sendmsg+0xee/0x170
[  409.868529][   T10]      __sys_sendmsg+0xcd/0x170
[  409.868529][   T10]      do_syscall_64+0xc6/0x1e0
[  409.868529][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  409.868529][   T10] 
[  409.870419][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  409.870688][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  409.870688][   T10]      dst_init+0x84/0x4a0
[  409.870688][   T10]      dst_alloc+0x97/0x150
[  409.870688][   T10]      ip6_dst_alloc+0x23/0x90
[  409.870688][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  409.870688][   T10]      ip6_pol_route+0x56f/0x840
[  409.870688][   T10]      fib6_rule_lookup+0x456/0x630
[  409.870688][   T10]      ip6_route_input+0x59c/0xa50
[  409.870688][   T10]      ipv6_rcv+0x397/0x810
[  409.870688][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  409.870688][   T10]      process_backlog+0x101/0x620
[  409.870688][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  409.870688][   T10]      net_rx_action+0x495/0xbe0
[  409.870688][   T10]      __do_softirq+0x1b5/0x7f6
[  409.870688][   T10] 
[  409.872539][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  409.872539][   T10]      netdev_get_by_index+0x5e/0x80
[  409.872539][   T10]      fib6_nh_init+0x3d8/0x1580
[  409.872539][   T10]      ip6_route_info_create+0xf18/0x17d0
[  409.872539][   T10]      ip6_route_add+0x1c/0x140
[  409.872539][   T10]      addrconf_prefix_route+0x2a6/0x430
[  409.872539][   T10]      inet6_addr_add+0x4f8/0xa40
[  409.872539][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  409.872539][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  409.872539][   T10]      netlink_rcv_skb+0x130/0x360
[  409.872539][   T10]      netlink_unicast+0x449/0x710
[  409.872539][   T10]      netlink_sendmsg+0x723/0xbe0
[  409.872539][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  409.872539][   T10]      ___sys_sendmsg+0xee/0x170
[  409.872539][   T10]      __sys_sendmsg+0xcd/0x170
[  409.872539][   T10]      do_syscall_64+0xc6/0x1e0
[  409.872539][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  409.872539][   T10] 
[  409.874792][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  409.874792][   T10]      netdev_get_by_index+0x5e/0x80
[  409.874792][   T10]      fib6_nh_init+0x3d8/0x1580
[  409.874792][   T10]      ip6_route_info_create+0xf18/0x17d0
[  409.874792][   T10]      addrconf_f6i_alloc+0x315/0x560
[  409.874792][   T10]      ipv6_add_addr+0x411/0x2000
[  409.874792][   T10]      inet6_addr_add+0x30e/0xa40
[  409.874792][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  409.874792][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  409.874792][   T10]      netlink_rcv_skb+0x130/0x360
[  409.874792][   T10]      netlink_unicast+0x449/0x710
[  409.874792][   T10]      netlink_sendmsg+0x723/0xbe0
[  409.874792][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  409.874792][   T10]      ___sys_sendmsg+0xee/0x170
[  409.874792][   T10]      __sys_sendmsg+0xcd/0x170
[  409.874792][   T10]      do_syscall_64+0xc6/0x1e0
[  409.874792][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  409.874792][   T10] 
[  409.877037][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  409.877037][   T10]      netdev_get_by_index+0x5e/0x80
[  409.877037][   T10]      fib6_nh_init+0x3d8/0x1580
[  409.877037][   T10]      ip6_route_info_create+0xf18/0x17d0
[  409.877037][   T10]      ip6_route_add+0x1c/0x140
[  409.877037][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  409.877037][   T10]      addrconf_add_dev+0xe2/0x170
[  409.877037][   T10]      inet6_addr_add+0x12f/0xa40
[  409.877037][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  409.877037][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  409.877037][   T10]      netlink_rcv_skb+0x130/0x360
[  409.877037][   T10]      netlink_unicast+0x449/0x710
[  409.877037][   T10]      netlink_sendmsg+0x723/0xbe0
[  409.877037][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  409.877037][   T10]      ___sys_sendmsg+0xee/0x170
[  409.877037][   T10]      __sys_sendmsg+0xcd/0x170
[  409.877037][   T10]      do_syscall_64+0xc6/0x1e0
[  409.877037][   T10] 
[  409.879237][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  409.879237][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  409.879237][   T10]      ipv6_find_idev+0x102/0x170
[  409.879237][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  409.879237][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  409.879237][   T10]      netlink_rcv_skb+0x130/0x360
[  409.879237][   T10]      netlink_unicast+0x449/0x710
[  409.879237][   T10]      netlink_sendmsg+0x723/0xbe0
[  409.879237][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  409.879237][   T10]      ___sys_sendmsg+0xee/0x170
[  409.879237][   T10]      __sys_sendmsg+0xcd/0x170
[  409.879237][   T10]      do_syscall_64+0xc6/0x1e0
[  409.879237][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  409.879237][   T10] 
[  409.880963][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  409.880963][   T10]      neigh_parms_alloc+0x1e5/0x510
[  409.880963][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  409.880963][   T10]      ipv6_find_idev+0x102/0x170
[  409.880963][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  409.880963][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  409.880963][   T10]      netlink_rcv_skb+0x130/0x360
[  409.880963][   T10]      netlink_unicast+0x449/0x710
[  409.880963][   T10]      netlink_sendmsg+0x723/0xbe0
[  409.880963][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  409.880963][   T10]      ___sys_sendmsg+0xee/0x170
[  409.880963][   T10]      __sys_sendmsg+0xcd/0x170
[  409.880963][   T10]      do_syscall_64+0xc6/0x1e0
[  409.880963][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  409.880963][   T10] 
[  419.921785][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  419.922225][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  419.922225][   T10]      dst_init+0x84/0x4a0
[  419.922225][   T10]      dst_alloc+0x97/0x150
[  419.922225][   T10]      ip6_dst_alloc+0x23/0x90
[  419.922225][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  419.922225][   T10]      ip6_pol_route+0x56f/0x840
[  419.922225][   T10]      fib6_rule_lookup+0x456/0x630
[  419.922225][   T10]      ip6_route_input+0x59c/0xa50
[  419.922225][   T10]      ipv6_rcv+0x397/0x810
[  419.922225][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  419.922225][   T10]      process_backlog+0x101/0x620
[  419.922225][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  419.922225][   T10]      net_rx_action+0x495/0xbe0
[  419.922225][   T10]      __do_softirq+0x1b5/0x7f6
[  419.922225][   T10] 
[  419.924244][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  419.924244][   T10]      netdev_get_by_index+0x5e/0x80
[  419.924244][   T10]      fib6_nh_init+0x3d8/0x1580
[  419.924244][   T10]      ip6_route_info_create+0xf18/0x17d0
[  419.924244][   T10]      ip6_route_add+0x1c/0x140
[  419.924244][   T10]      addrconf_prefix_route+0x2a6/0x430
[  419.924244][   T10]      inet6_addr_add+0x4f8/0xa40
[  419.924244][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  419.924244][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  419.924244][   T10]      netlink_rcv_skb+0x130/0x360
[  419.924244][   T10]      netlink_unicast+0x449/0x710
[  419.924244][   T10]      netlink_sendmsg+0x723/0xbe0
[  419.924244][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  419.924244][   T10]      ___sys_sendmsg+0xee/0x170
[  419.924244][   T10]      __sys_sendmsg+0xcd/0x170
[  419.924244][   T10]      do_syscall_64+0xc6/0x1e0
[  419.924244][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  419.924244][   T10] 
[  419.926446][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  419.926446][   T10]      netdev_get_by_index+0x5e/0x80
[  419.926446][   T10]      fib6_nh_init+0x3d8/0x1580
[  419.926446][   T10]      ip6_route_info_create+0xf18/0x17d0
[  419.926446][   T10]      addrconf_f6i_alloc+0x315/0x560
[  419.926446][   T10]      ipv6_add_addr+0x411/0x2000
[  419.926446][   T10]      inet6_addr_add+0x30e/0xa40
[  419.926446][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  419.926446][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  419.926446][   T10]      netlink_rcv_skb+0x130/0x360
[  419.926446][   T10]      netlink_unicast+0x449/0x710
[  419.926446][   T10]      netlink_sendmsg+0x723/0xbe0
[  419.926446][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  419.926446][   T10]      ___sys_sendmsg+0xee/0x170
[  419.926446][   T10]      __sys_sendmsg+0xcd/0x170
[  419.926446][   T10]      do_syscall_64+0xc6/0x1e0
[  419.926446][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  419.926446][   T10] 
[  419.928708][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  419.928708][   T10]      netdev_get_by_index+0x5e/0x80
[  419.928708][   T10]      fib6_nh_init+0x3d8/0x1580
[  419.928708][   T10]      ip6_route_info_create+0xf18/0x17d0
[  419.928708][   T10]      ip6_route_add+0x1c/0x140
[  419.928708][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  419.928708][   T10]      addrconf_add_dev+0xe2/0x170
[  419.928708][   T10]      inet6_addr_add+0x12f/0xa40
[  419.928708][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  419.928708][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  419.928708][   T10]      netlink_rcv_skb+0x130/0x360
[  419.928708][   T10]      netlink_unicast+0x449/0x710
[  419.928708][   T10]      netlink_sendmsg+0x723/0xbe0
[  419.928708][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  419.928708][   T10]      ___sys_sendmsg+0xee/0x170
[  419.928708][   T10]      __sys_sendmsg+0xcd/0x170
[  419.928708][   T10]      do_syscall_64+0xc6/0x1e0
[  419.928708][   T10] 
[  419.930965][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  419.930965][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  419.930965][   T10]      ipv6_find_idev+0x102/0x170
[  419.930965][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  419.930965][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  419.930965][   T10]      netlink_rcv_skb+0x130/0x360
[  419.930965][   T10]      netlink_unicast+0x449/0x710
[  419.930965][   T10]      netlink_sendmsg+0x723/0xbe0
[  419.930965][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  419.930965][   T10]      ___sys_sendmsg+0xee/0x170
[  419.930965][   T10]      __sys_sendmsg+0xcd/0x170
[  419.930965][   T10]      do_syscall_64+0xc6/0x1e0
[  419.930965][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  419.930965][   T10] 
[  419.932701][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  419.932701][   T10]      neigh_parms_alloc+0x1e5/0x510
[  419.932701][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  419.932701][   T10]      ipv6_find_idev+0x102/0x170
[  419.932701][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  419.932701][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  419.932701][   T10]      netlink_rcv_skb+0x130/0x360
[  419.932701][   T10]      netlink_unicast+0x449/0x710
[  419.932701][   T10]      netlink_sendmsg+0x723/0xbe0
[  419.932701][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  419.932701][   T10]      ___sys_sendmsg+0xee/0x170
[  419.932701][   T10]      __sys_sendmsg+0xcd/0x170
[  419.932701][   T10]      do_syscall_64+0xc6/0x1e0
[  419.932701][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  419.932701][   T10] 
[  419.934571][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  419.934863][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  419.934863][   T10]      dst_init+0x84/0x4a0
[  419.934863][   T10]      dst_alloc+0x97/0x150
[  419.934863][   T10]      ip6_dst_alloc+0x23/0x90
[  419.934863][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  419.934863][   T10]      ip6_pol_route+0x56f/0x840
[  419.934863][   T10]      fib6_rule_lookup+0x456/0x630
[  419.934863][   T10]      ip6_route_input+0x59c/0xa50
[  419.934863][   T10]      ipv6_rcv+0x397/0x810
[  419.934863][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  419.934863][   T10]      process_backlog+0x101/0x620
[  419.934863][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  419.934863][   T10]      net_rx_action+0x495/0xbe0
[  419.934863][   T10]      __do_softirq+0x1b5/0x7f6
[  419.934863][   T10] 
[  419.936699][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  419.936699][   T10]      netdev_get_by_index+0x5e/0x80
[  419.936699][   T10]      fib6_nh_init+0x3d8/0x1580
[  419.936699][   T10]      ip6_route_info_create+0xf18/0x17d0
[  419.936699][   T10]      ip6_route_add+0x1c/0x140
[  419.936699][   T10]      addrconf_prefix_route+0x2a6/0x430
[  419.936699][   T10]      inet6_addr_add+0x4f8/0xa40
[  419.936699][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  419.936699][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  419.936699][   T10]      netlink_rcv_skb+0x130/0x360
[  419.936699][   T10]      netlink_unicast+0x449/0x710
[  419.936699][   T10]      netlink_sendmsg+0x723/0xbe0
[  419.936699][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  419.936699][   T10]      ___sys_sendmsg+0xee/0x170
[  419.936699][   T10]      __sys_sendmsg+0xcd/0x170
[  419.936699][   T10]      do_syscall_64+0xc6/0x1e0
[  419.936699][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  419.936699][   T10] 
[  419.938963][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  419.938963][   T10]      netdev_get_by_index+0x5e/0x80
[  419.938963][   T10]      fib6_nh_init+0x3d8/0x1580
[  419.938963][   T10]      ip6_route_info_create+0xf18/0x17d0
[  419.938963][   T10]      addrconf_f6i_alloc+0x315/0x560
[  419.938963][   T10]      ipv6_add_addr+0x411/0x2000
[  419.938963][   T10]      inet6_addr_add+0x30e/0xa40
[  419.938963][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  419.938963][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  419.938963][   T10]      netlink_rcv_skb+0x130/0x360
[  419.938963][   T10]      netlink_unicast+0x449/0x710
[  419.938963][   T10]      netlink_sendmsg+0x723/0xbe0
[  419.938963][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  419.938963][   T10]      ___sys_sendmsg+0xee/0x170
[  419.938963][   T10]      __sys_sendmsg+0xcd/0x170
[  419.938963][   T10]      do_syscall_64+0xc6/0x1e0
[  419.938963][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  419.938963][   T10] 
[  419.941224][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  419.941224][   T10]      netdev_get_by_index+0x5e/0x80
[  419.941224][   T10]      fib6_nh_init+0x3d8/0x1580
[  419.941224][   T10]      ip6_route_info_create+0xf18/0x17d0
[  419.941224][   T10]      ip6_route_add+0x1c/0x140
[  419.941224][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  419.941224][   T10]      addrconf_add_dev+0xe2/0x170
[  419.941224][   T10]      inet6_addr_add+0x12f/0xa40
[  419.941224][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  419.941224][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  419.941224][   T10]      netlink_rcv_skb+0x130/0x360
[  419.941224][   T10]      netlink_unicast+0x449/0x710
[  419.941224][   T10]      netlink_sendmsg+0x723/0xbe0
[  419.941224][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  419.941224][   T10]      ___sys_sendmsg+0xee/0x170
[  419.941224][   T10]      __sys_sendmsg+0xcd/0x170
[  419.941224][   T10]      do_syscall_64+0xc6/0x1e0
[  419.941224][   T10] 
[  419.943424][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  419.943424][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  419.943424][   T10]      ipv6_find_idev+0x102/0x170
[  419.943424][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  419.943424][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  419.943424][   T10]      netlink_rcv_skb+0x130/0x360
[  419.943424][   T10]      netlink_unicast+0x449/0x710
[  419.943424][   T10]      netlink_sendmsg+0x723/0xbe0
[  419.943424][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  419.943424][   T10]      ___sys_sendmsg+0xee/0x170
[  419.943424][   T10]      __sys_sendmsg+0xcd/0x170
[  419.943424][   T10]      do_syscall_64+0xc6/0x1e0
[  419.943424][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  419.943424][   T10] 
[  419.945145][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  419.945145][   T10]      neigh_parms_alloc+0x1e5/0x510
[  419.945145][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  419.945145][   T10]      ipv6_find_idev+0x102/0x170
[  419.945145][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  419.945145][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  419.945145][   T10]      netlink_rcv_skb+0x130/0x360
[  419.945145][   T10]      netlink_unicast+0x449/0x710
[  419.945145][   T10]      netlink_sendmsg+0x723/0xbe0
[  419.945145][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  419.945145][   T10]      ___sys_sendmsg+0xee/0x170
[  419.945145][   T10]      __sys_sendmsg+0xcd/0x170
[  419.945145][   T10]      do_syscall_64+0xc6/0x1e0
[  419.945145][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  419.945145][   T10] 
[  430.201785][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  430.202221][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  430.202221][   T10]      dst_init+0x84/0x4a0
[  430.202221][   T10]      dst_alloc+0x97/0x150
[  430.202221][   T10]      ip6_dst_alloc+0x23/0x90
[  430.202221][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  430.202221][   T10]      ip6_pol_route+0x56f/0x840
[  430.202221][   T10]      fib6_rule_lookup+0x456/0x630
[  430.202221][   T10]      ip6_route_input+0x59c/0xa50
[  430.202221][   T10]      ipv6_rcv+0x397/0x810
[  430.202221][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  430.202221][   T10]      process_backlog+0x101/0x620
[  430.202221][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  430.202221][   T10]      net_rx_action+0x495/0xbe0
[  430.202221][   T10]      __do_softirq+0x1b5/0x7f6
[  430.202221][   T10] 
[  430.204266][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  430.204266][   T10]      netdev_get_by_index+0x5e/0x80
[  430.204266][   T10]      fib6_nh_init+0x3d8/0x1580
[  430.204266][   T10]      ip6_route_info_create+0xf18/0x17d0
[  430.204266][   T10]      ip6_route_add+0x1c/0x140
[  430.204266][   T10]      addrconf_prefix_route+0x2a6/0x430
[  430.204266][   T10]      inet6_addr_add+0x4f8/0xa40
[  430.204266][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  430.204266][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  430.204266][   T10]      netlink_rcv_skb+0x130/0x360
[  430.204266][   T10]      netlink_unicast+0x449/0x710
[  430.204266][   T10]      netlink_sendmsg+0x723/0xbe0
[  430.204266][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  430.204266][   T10]      ___sys_sendmsg+0xee/0x170
[  430.204266][   T10]      __sys_sendmsg+0xcd/0x170
[  430.204266][   T10]      do_syscall_64+0xc6/0x1e0
[  430.204266][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  430.204266][   T10] 
[  430.206500][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  430.206500][   T10]      netdev_get_by_index+0x5e/0x80
[  430.206500][   T10]      fib6_nh_init+0x3d8/0x1580
[  430.206500][   T10]      ip6_route_info_create+0xf18/0x17d0
[  430.206500][   T10]      addrconf_f6i_alloc+0x315/0x560
[  430.206500][   T10]      ipv6_add_addr+0x411/0x2000
[  430.206500][   T10]      inet6_addr_add+0x30e/0xa40
[  430.206500][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  430.206500][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  430.206500][   T10]      netlink_rcv_skb+0x130/0x360
[  430.206500][   T10]      netlink_unicast+0x449/0x710
[  430.206500][   T10]      netlink_sendmsg+0x723/0xbe0
[  430.206500][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  430.206500][   T10]      ___sys_sendmsg+0xee/0x170
[  430.206500][   T10]      __sys_sendmsg+0xcd/0x170
[  430.206500][   T10]      do_syscall_64+0xc6/0x1e0
[  430.206500][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  430.206500][   T10] 
[  430.208741][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  430.208741][   T10]      netdev_get_by_index+0x5e/0x80
[  430.208741][   T10]      fib6_nh_init+0x3d8/0x1580
[  430.208741][   T10]      ip6_route_info_create+0xf18/0x17d0
[  430.208741][   T10]      ip6_route_add+0x1c/0x140
[  430.208741][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  430.208741][   T10]      addrconf_add_dev+0xe2/0x170
[  430.208741][   T10]      inet6_addr_add+0x12f/0xa40
[  430.208741][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  430.208741][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  430.208741][   T10]      netlink_rcv_skb+0x130/0x360
[  430.208741][   T10]      netlink_unicast+0x449/0x710
[  430.208741][   T10]      netlink_sendmsg+0x723/0xbe0
[  430.208741][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  430.208741][   T10]      ___sys_sendmsg+0xee/0x170
[  430.208741][   T10]      __sys_sendmsg+0xcd/0x170
[  430.208741][   T10]      do_syscall_64+0xc6/0x1e0
[  430.208741][   T10] 
[  430.210990][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  430.210990][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  430.210990][   T10]      ipv6_find_idev+0x102/0x170
[  430.210990][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  430.210990][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  430.210990][   T10]      netlink_rcv_skb+0x130/0x360
[  430.210990][   T10]      netlink_unicast+0x449/0x710
[  430.210990][   T10]      netlink_sendmsg+0x723/0xbe0
[  430.210990][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  430.210990][   T10]      ___sys_sendmsg+0xee/0x170
[  430.210990][   T10]      __sys_sendmsg+0xcd/0x170
[  430.210990][   T10]      do_syscall_64+0xc6/0x1e0
[  430.210990][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  430.210990][   T10] 
[  430.212737][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  430.212737][   T10]      neigh_parms_alloc+0x1e5/0x510
[  430.212737][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  430.212737][   T10]      ipv6_find_idev+0x102/0x170
[  430.212737][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  430.212737][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  430.212737][   T10]      netlink_rcv_skb+0x130/0x360
[  430.212737][   T10]      netlink_unicast+0x449/0x710
[  430.212737][   T10]      netlink_sendmsg+0x723/0xbe0
[  430.212737][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  430.212737][   T10]      ___sys_sendmsg+0xee/0x170
[  430.212737][   T10]      __sys_sendmsg+0xcd/0x170
[  430.212737][   T10]      do_syscall_64+0xc6/0x1e0
[  430.212737][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  430.212737][   T10] 
[  430.214626][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  430.214898][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  430.214898][   T10]      dst_init+0x84/0x4a0
[  430.214898][   T10]      dst_alloc+0x97/0x150
[  430.214898][   T10]      ip6_dst_alloc+0x23/0x90
[  430.214898][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  430.214898][   T10]      ip6_pol_route+0x56f/0x840
[  430.214898][   T10]      fib6_rule_lookup+0x456/0x630
[  430.214898][   T10]      ip6_route_input+0x59c/0xa50
[  430.214898][   T10]      ipv6_rcv+0x397/0x810
[  430.214898][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  430.214898][   T10]      process_backlog+0x101/0x620
[  430.214898][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  430.214898][   T10]      net_rx_action+0x495/0xbe0
[  430.214898][   T10]      __do_softirq+0x1b5/0x7f6
[  430.214898][   T10] 
[  430.216738][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  430.216738][   T10]      netdev_get_by_index+0x5e/0x80
[  430.216738][   T10]      fib6_nh_init+0x3d8/0x1580
[  430.216738][   T10]      ip6_route_info_create+0xf18/0x17d0
[  430.216738][   T10]      ip6_route_add+0x1c/0x140
[  430.216738][   T10]      addrconf_prefix_route+0x2a6/0x430
[  430.216738][   T10]      inet6_addr_add+0x4f8/0xa40
[  430.216738][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  430.216738][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  430.216738][   T10]      netlink_rcv_skb+0x130/0x360
[  430.216738][   T10]      netlink_unicast+0x449/0x710
[  430.216738][   T10]      netlink_sendmsg+0x723/0xbe0
[  430.216738][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  430.216738][   T10]      ___sys_sendmsg+0xee/0x170
[  430.216738][   T10]      __sys_sendmsg+0xcd/0x170
[  430.216738][   T10]      do_syscall_64+0xc6/0x1e0
[  430.216738][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  430.216738][   T10] 
[  430.218998][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  430.218998][   T10]      netdev_get_by_index+0x5e/0x80
[  430.218998][   T10]      fib6_nh_init+0x3d8/0x1580
[  430.218998][   T10]      ip6_route_info_create+0xf18/0x17d0
[  430.218998][   T10]      addrconf_f6i_alloc+0x315/0x560
[  430.218998][   T10]      ipv6_add_addr+0x411/0x2000
[  430.218998][   T10]      inet6_addr_add+0x30e/0xa40
[  430.218998][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  430.218998][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  430.218998][   T10]      netlink_rcv_skb+0x130/0x360
[  430.218998][   T10]      netlink_unicast+0x449/0x710
[  430.218998][   T10]      netlink_sendmsg+0x723/0xbe0
[  430.218998][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  430.218998][   T10]      ___sys_sendmsg+0xee/0x170
[  430.218998][   T10]      __sys_sendmsg+0xcd/0x170
[  430.218998][   T10]      do_syscall_64+0xc6/0x1e0
[  430.218998][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  430.218998][   T10] 
[  430.221233][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  430.221233][   T10]      netdev_get_by_index+0x5e/0x80
[  430.221233][   T10]      fib6_nh_init+0x3d8/0x1580
[  430.221233][   T10]      ip6_route_info_create+0xf18/0x17d0
[  430.221233][   T10]      ip6_route_add+0x1c/0x140
[  430.221233][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  430.221233][   T10]      addrconf_add_dev+0xe2/0x170
[  430.221233][   T10]      inet6_addr_add+0x12f/0xa40
[  430.221233][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  430.221233][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  430.221233][   T10]      netlink_rcv_skb+0x130/0x360
[  430.221233][   T10]      netlink_unicast+0x449/0x710
[  430.221233][   T10]      netlink_sendmsg+0x723/0xbe0
[  430.221233][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  430.221233][   T10]      ___sys_sendmsg+0xee/0x170
[  430.221233][   T10]      __sys_sendmsg+0xcd/0x170
[  430.221233][   T10]      do_syscall_64+0xc6/0x1e0
[  430.221233][   T10] 
[  430.223454][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  430.223454][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  430.223454][   T10]      ipv6_find_idev+0x102/0x170
[  430.223454][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  430.223454][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  430.223454][   T10]      netlink_rcv_skb+0x130/0x360
[  430.223454][   T10]      netlink_unicast+0x449/0x710
[  430.223454][   T10]      netlink_sendmsg+0x723/0xbe0
[  430.223454][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  430.223454][   T10]      ___sys_sendmsg+0xee/0x170
[  430.223454][   T10]      __sys_sendmsg+0xcd/0x170
[  430.223454][   T10]      do_syscall_64+0xc6/0x1e0
[  430.223454][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  430.223454][   T10] 
[  430.225190][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  430.225190][   T10]      neigh_parms_alloc+0x1e5/0x510
[  430.225190][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  430.225190][   T10]      ipv6_find_idev+0x102/0x170
[  430.225190][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  430.225190][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  430.225190][   T10]      netlink_rcv_skb+0x130/0x360
[  430.225190][   T10]      netlink_unicast+0x449/0x710
[  430.225190][   T10]      netlink_sendmsg+0x723/0xbe0
[  430.225190][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  430.225190][   T10]      ___sys_sendmsg+0xee/0x170
[  430.225190][   T10]      __sys_sendmsg+0xcd/0x170
[  430.225190][   T10]      do_syscall_64+0xc6/0x1e0
[  430.225190][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  430.225190][   T10] 
[  440.481780][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  440.482223][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  440.482223][   T10]      dst_init+0x84/0x4a0
[  440.482223][   T10]      dst_alloc+0x97/0x150
[  440.482223][   T10]      ip6_dst_alloc+0x23/0x90
[  440.482223][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  440.482223][   T10]      ip6_pol_route+0x56f/0x840
[  440.482223][   T10]      fib6_rule_lookup+0x456/0x630
[  440.482223][   T10]      ip6_route_input+0x59c/0xa50
[  440.482223][   T10]      ipv6_rcv+0x397/0x810
[  440.482223][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  440.482223][   T10]      process_backlog+0x101/0x620
[  440.482223][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  440.482223][   T10]      net_rx_action+0x495/0xbe0
[  440.482223][   T10]      __do_softirq+0x1b5/0x7f6
[  440.482223][   T10] 
[  440.484068][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  440.484068][   T10]      netdev_get_by_index+0x5e/0x80
[  440.484068][   T10]      fib6_nh_init+0x3d8/0x1580
[  440.484068][   T10]      ip6_route_info_create+0xf18/0x17d0
[  440.484068][   T10]      ip6_route_add+0x1c/0x140
[  440.484068][   T10]      addrconf_prefix_route+0x2a6/0x430
[  440.484068][   T10]      inet6_addr_add+0x4f8/0xa40
[  440.484068][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  440.484068][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  440.484068][   T10]      netlink_rcv_skb+0x130/0x360
[  440.484068][   T10]      netlink_unicast+0x449/0x710
[  440.484068][   T10]      netlink_sendmsg+0x723/0xbe0
[  440.484068][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  440.484068][   T10]      ___sys_sendmsg+0xee/0x170
[  440.484068][   T10]      __sys_sendmsg+0xcd/0x170
[  440.484068][   T10]      do_syscall_64+0xc6/0x1e0
[  440.484068][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  440.484068][   T10] 
[  440.486288][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  440.486288][   T10]      netdev_get_by_index+0x5e/0x80
[  440.486288][   T10]      fib6_nh_init+0x3d8/0x1580
[  440.486288][   T10]      ip6_route_info_create+0xf18/0x17d0
[  440.486288][   T10]      addrconf_f6i_alloc+0x315/0x560
[  440.486288][   T10]      ipv6_add_addr+0x411/0x2000
[  440.486288][   T10]      inet6_addr_add+0x30e/0xa40
[  440.486288][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  440.486288][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  440.486288][   T10]      netlink_rcv_skb+0x130/0x360
[  440.486288][   T10]      netlink_unicast+0x449/0x710
[  440.486288][   T10]      netlink_sendmsg+0x723/0xbe0
[  440.486288][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  440.486288][   T10]      ___sys_sendmsg+0xee/0x170
[  440.486288][   T10]      __sys_sendmsg+0xcd/0x170
[  440.486288][   T10]      do_syscall_64+0xc6/0x1e0
[  440.486288][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  440.486288][   T10] 
[  440.488608][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  440.488608][   T10]      netdev_get_by_index+0x5e/0x80
[  440.488608][   T10]      fib6_nh_init+0x3d8/0x1580
[  440.488608][   T10]      ip6_route_info_create+0xf18/0x17d0
[  440.488608][   T10]      ip6_route_add+0x1c/0x140
[  440.488608][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  440.488608][   T10]      addrconf_add_dev+0xe2/0x170
[  440.488608][   T10]      inet6_addr_add+0x12f/0xa40
[  440.488608][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  440.488608][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  440.488608][   T10]      netlink_rcv_skb+0x130/0x360
[  440.488608][   T10]      netlink_unicast+0x449/0x710
[  440.488608][   T10]      netlink_sendmsg+0x723/0xbe0
[  440.488608][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  440.488608][   T10]      ___sys_sendmsg+0xee/0x170
[  440.488608][   T10]      __sys_sendmsg+0xcd/0x170
[  440.488608][   T10]      do_syscall_64+0xc6/0x1e0
[  440.488608][   T10] 
[  440.490854][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  440.490854][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  440.490854][   T10]      ipv6_find_idev+0x102/0x170
[  440.490854][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  440.490854][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  440.490854][   T10]      netlink_rcv_skb+0x130/0x360
[  440.490854][   T10]      netlink_unicast+0x449/0x710
[  440.490854][   T10]      netlink_sendmsg+0x723/0xbe0
[  440.490854][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  440.490854][   T10]      ___sys_sendmsg+0xee/0x170
[  440.490854][   T10]      __sys_sendmsg+0xcd/0x170
[  440.490854][   T10]      do_syscall_64+0xc6/0x1e0
[  440.490854][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  440.490854][   T10] 
[  440.492616][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  440.492616][   T10]      neigh_parms_alloc+0x1e5/0x510
[  440.492616][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  440.492616][   T10]      ipv6_find_idev+0x102/0x170
[  440.492616][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  440.492616][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  440.492616][   T10]      netlink_rcv_skb+0x130/0x360
[  440.492616][   T10]      netlink_unicast+0x449/0x710
[  440.492616][   T10]      netlink_sendmsg+0x723/0xbe0
[  440.492616][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  440.492616][   T10]      ___sys_sendmsg+0xee/0x170
[  440.492616][   T10]      __sys_sendmsg+0xcd/0x170
[  440.492616][   T10]      do_syscall_64+0xc6/0x1e0
[  440.492616][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  440.492616][   T10] 
[  440.494531][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  440.494806][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  440.494806][   T10]      dst_init+0x84/0x4a0
[  440.494806][   T10]      dst_alloc+0x97/0x150
[  440.494806][   T10]      ip6_dst_alloc+0x23/0x90
[  440.494806][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  440.494806][   T10]      ip6_pol_route+0x56f/0x840
[  440.494806][   T10]      fib6_rule_lookup+0x456/0x630
[  440.494806][   T10]      ip6_route_input+0x59c/0xa50
[  440.494806][   T10]      ipv6_rcv+0x397/0x810
[  440.494806][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  440.494806][   T10]      process_backlog+0x101/0x620
[  440.494806][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  440.494806][   T10]      net_rx_action+0x495/0xbe0
[  440.494806][   T10]      __do_softirq+0x1b5/0x7f6
[  440.494806][   T10] 
[  440.496685][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  440.496685][   T10]      netdev_get_by_index+0x5e/0x80
[  440.496685][   T10]      fib6_nh_init+0x3d8/0x1580
[  440.496685][   T10]      ip6_route_info_create+0xf18/0x17d0
[  440.496685][   T10]      ip6_route_add+0x1c/0x140
[  440.496685][   T10]      addrconf_prefix_route+0x2a6/0x430
[  440.496685][   T10]      inet6_addr_add+0x4f8/0xa40
[  440.496685][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  440.496685][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  440.496685][   T10]      netlink_rcv_skb+0x130/0x360
[  440.496685][   T10]      netlink_unicast+0x449/0x710
[  440.496685][   T10]      netlink_sendmsg+0x723/0xbe0
[  440.496685][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  440.496685][   T10]      ___sys_sendmsg+0xee/0x170
[  440.496685][   T10]      __sys_sendmsg+0xcd/0x170
[  440.496685][   T10]      do_syscall_64+0xc6/0x1e0
[  440.496685][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  440.496685][   T10] 
[  440.498910][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  440.498910][   T10]      netdev_get_by_index+0x5e/0x80
[  440.498910][   T10]      fib6_nh_init+0x3d8/0x1580
[  440.498910][   T10]      ip6_route_info_create+0xf18/0x17d0
[  440.498910][   T10]      addrconf_f6i_alloc+0x315/0x560
[  440.498910][   T10]      ipv6_add_addr+0x411/0x2000
[  440.498910][   T10]      inet6_addr_add+0x30e/0xa40
[  440.498910][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  440.498910][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  440.498910][   T10]      netlink_rcv_skb+0x130/0x360
[  440.498910][   T10]      netlink_unicast+0x449/0x710
[  440.498910][   T10]      netlink_sendmsg+0x723/0xbe0
[  440.498910][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  440.498910][   T10]      ___sys_sendmsg+0xee/0x170
[  440.498910][   T10]      __sys_sendmsg+0xcd/0x170
[  440.498910][   T10]      do_syscall_64+0xc6/0x1e0
[  440.498910][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  440.498910][   T10] 
[  440.501183][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  440.501183][   T10]      netdev_get_by_index+0x5e/0x80
[  440.501183][   T10]      fib6_nh_init+0x3d8/0x1580
[  440.501183][   T10]      ip6_route_info_create+0xf18/0x17d0
[  440.501183][   T10]      ip6_route_add+0x1c/0x140
[  440.501183][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  440.501183][   T10]      addrconf_add_dev+0xe2/0x170
[  440.501183][   T10]      inet6_addr_add+0x12f/0xa40
[  440.501183][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  440.501183][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  440.501183][   T10]      netlink_rcv_skb+0x130/0x360
[  440.501183][   T10]      netlink_unicast+0x449/0x710
[  440.501183][   T10]      netlink_sendmsg+0x723/0xbe0
[  440.501183][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  440.501183][   T10]      ___sys_sendmsg+0xee/0x170
[  440.501183][   T10]      __sys_sendmsg+0xcd/0x170
[  440.501183][   T10]      do_syscall_64+0xc6/0x1e0
[  440.501183][   T10] 
[  440.503495][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  440.503495][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  440.503495][   T10]      ipv6_find_idev+0x102/0x170
[  440.503495][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  440.503495][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  440.503495][   T10]      netlink_rcv_skb+0x130/0x360
[  440.503495][   T10]      netlink_unicast+0x449/0x710
[  440.503495][   T10]      netlink_sendmsg+0x723/0xbe0
[  440.503495][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  440.503495][   T10]      ___sys_sendmsg+0xee/0x170
[  440.503495][   T10]      __sys_sendmsg+0xcd/0x170
[  440.503495][   T10]      do_syscall_64+0xc6/0x1e0
[  440.503495][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  440.503495][   T10] 
[  440.505566][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  440.505566][   T10]      neigh_parms_alloc+0x1e5/0x510
[  440.505566][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  440.505566][   T10]      ipv6_find_idev+0x102/0x170
[  440.505566][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  440.505566][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  440.505566][   T10]      netlink_rcv_skb+0x130/0x360
[  440.505566][   T10]      netlink_unicast+0x449/0x710
[  440.505566][   T10]      netlink_sendmsg+0x723/0xbe0
[  440.505566][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  440.505566][   T10]      ___sys_sendmsg+0xee/0x170
[  440.505566][   T10]      __sys_sendmsg+0xcd/0x170
[  440.505566][   T10]      do_syscall_64+0xc6/0x1e0
[  440.505566][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  440.505566][   T10] 
[  450.761714][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  450.762149][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  450.762149][   T10]      dst_init+0x84/0x4a0
[  450.762149][   T10]      dst_alloc+0x97/0x150
[  450.762149][   T10]      ip6_dst_alloc+0x23/0x90
[  450.762149][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  450.762149][   T10]      ip6_pol_route+0x56f/0x840
[  450.762149][   T10]      fib6_rule_lookup+0x456/0x630
[  450.762149][   T10]      ip6_route_input+0x59c/0xa50
[  450.762149][   T10]      ipv6_rcv+0x397/0x810
[  450.762149][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  450.762149][   T10]      process_backlog+0x101/0x620
[  450.762149][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  450.762149][   T10]      net_rx_action+0x495/0xbe0
[  450.762149][   T10]      __do_softirq+0x1b5/0x7f6
[  450.762149][   T10] 
[  450.764004][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  450.764004][   T10]      netdev_get_by_index+0x5e/0x80
[  450.764004][   T10]      fib6_nh_init+0x3d8/0x1580
[  450.764004][   T10]      ip6_route_info_create+0xf18/0x17d0
[  450.764004][   T10]      ip6_route_add+0x1c/0x140
[  450.764004][   T10]      addrconf_prefix_route+0x2a6/0x430
[  450.764004][   T10]      inet6_addr_add+0x4f8/0xa40
[  450.764004][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  450.764004][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  450.764004][   T10]      netlink_rcv_skb+0x130/0x360
[  450.764004][   T10]      netlink_unicast+0x449/0x710
[  450.764004][   T10]      netlink_sendmsg+0x723/0xbe0
[  450.764004][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  450.764004][   T10]      ___sys_sendmsg+0xee/0x170
[  450.764004][   T10]      __sys_sendmsg+0xcd/0x170
[  450.764004][   T10]      do_syscall_64+0xc6/0x1e0
[  450.764004][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  450.764004][   T10] 
[  450.766269][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  450.766269][   T10]      netdev_get_by_index+0x5e/0x80
[  450.766269][   T10]      fib6_nh_init+0x3d8/0x1580
[  450.766269][   T10]      ip6_route_info_create+0xf18/0x17d0
[  450.766269][   T10]      addrconf_f6i_alloc+0x315/0x560
[  450.766269][   T10]      ipv6_add_addr+0x411/0x2000
[  450.766269][   T10]      inet6_addr_add+0x30e/0xa40
[  450.766269][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  450.766269][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  450.766269][   T10]      netlink_rcv_skb+0x130/0x360
[  450.766269][   T10]      netlink_unicast+0x449/0x710
[  450.766269][   T10]      netlink_sendmsg+0x723/0xbe0
[  450.766269][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  450.766269][   T10]      ___sys_sendmsg+0xee/0x170
[  450.766269][   T10]      __sys_sendmsg+0xcd/0x170
[  450.766269][   T10]      do_syscall_64+0xc6/0x1e0
[  450.766269][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  450.766269][   T10] 
[  450.768524][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  450.768524][   T10]      netdev_get_by_index+0x5e/0x80
[  450.768524][   T10]      fib6_nh_init+0x3d8/0x1580
[  450.768524][   T10]      ip6_route_info_create+0xf18/0x17d0
[  450.768524][   T10]      ip6_route_add+0x1c/0x140
[  450.768524][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  450.768524][   T10]      addrconf_add_dev+0xe2/0x170
[  450.768524][   T10]      inet6_addr_add+0x12f/0xa40
[  450.768524][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  450.768524][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  450.768524][   T10]      netlink_rcv_skb+0x130/0x360
[  450.768524][   T10]      netlink_unicast+0x449/0x710
[  450.768524][   T10]      netlink_sendmsg+0x723/0xbe0
[  450.768524][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  450.768524][   T10]      ___sys_sendmsg+0xee/0x170
[  450.768524][   T10]      __sys_sendmsg+0xcd/0x170
[  450.768524][   T10]      do_syscall_64+0xc6/0x1e0
[  450.768524][   T10] 
[  450.770834][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  450.770834][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  450.770834][   T10]      ipv6_find_idev+0x102/0x170
[  450.770834][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  450.770834][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  450.770834][   T10]      netlink_rcv_skb+0x130/0x360
[  450.770834][   T10]      netlink_unicast+0x449/0x710
[  450.770834][   T10]      netlink_sendmsg+0x723/0xbe0
[  450.770834][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  450.770834][   T10]      ___sys_sendmsg+0xee/0x170
[  450.770834][   T10]      __sys_sendmsg+0xcd/0x170
[  450.770834][   T10]      do_syscall_64+0xc6/0x1e0
[  450.770834][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  450.770834][   T10] 
[  450.773070][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  450.773070][   T10]      neigh_parms_alloc+0x1e5/0x510
[  450.773070][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  450.773070][   T10]      ipv6_find_idev+0x102/0x170
[  450.773070][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  450.773070][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  450.773070][   T10]      netlink_rcv_skb+0x130/0x360
[  450.773070][   T10]      netlink_unicast+0x449/0x710
[  450.773070][   T10]      netlink_sendmsg+0x723/0xbe0
[  450.773070][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  450.773070][   T10]      ___sys_sendmsg+0xee/0x170
[  450.773070][   T10]      __sys_sendmsg+0xcd/0x170
[  450.773070][   T10]      do_syscall_64+0xc6/0x1e0
[  450.773070][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  450.773070][   T10] 
[  450.775674][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  450.775959][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  450.775959][   T10]      dst_init+0x84/0x4a0
[  450.775959][   T10]      dst_alloc+0x97/0x150
[  450.775959][   T10]      ip6_dst_alloc+0x23/0x90
[  450.775959][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  450.775959][   T10]      ip6_pol_route+0x56f/0x840
[  450.775959][   T10]      fib6_rule_lookup+0x456/0x630
[  450.775959][   T10]      ip6_route_input+0x59c/0xa50
[  450.775959][   T10]      ipv6_rcv+0x397/0x810
[  450.775959][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  450.775959][   T10]      process_backlog+0x101/0x620
[  450.775959][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  450.775959][   T10]      net_rx_action+0x495/0xbe0
[  450.775959][   T10]      __do_softirq+0x1b5/0x7f6
[  450.775959][   T10] 
[  450.777811][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  450.777811][   T10]      netdev_get_by_index+0x5e/0x80
[  450.777811][   T10]      fib6_nh_init+0x3d8/0x1580
[  450.777811][   T10]      ip6_route_info_create+0xf18/0x17d0
[  450.777811][   T10]      ip6_route_add+0x1c/0x140
[  450.777811][   T10]      addrconf_prefix_route+0x2a6/0x430
[  450.777811][   T10]      inet6_addr_add+0x4f8/0xa40
[  450.777811][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  450.777811][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  450.777811][   T10]      netlink_rcv_skb+0x130/0x360
[  450.777811][   T10]      netlink_unicast+0x449/0x710
[  450.777811][   T10]      netlink_sendmsg+0x723/0xbe0
[  450.777811][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  450.777811][   T10]      ___sys_sendmsg+0xee/0x170
[  450.777811][   T10]      __sys_sendmsg+0xcd/0x170
[  450.777811][   T10]      do_syscall_64+0xc6/0x1e0
[  450.777811][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  450.777811][   T10] 
[  450.780079][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  450.780079][   T10]      netdev_get_by_index+0x5e/0x80
[  450.780079][   T10]      fib6_nh_init+0x3d8/0x1580
[  450.780079][   T10]      ip6_route_info_create+0xf18/0x17d0
[  450.780079][   T10]      addrconf_f6i_alloc+0x315/0x560
[  450.780079][   T10]      ipv6_add_addr+0x411/0x2000
[  450.780079][   T10]      inet6_addr_add+0x30e/0xa40
[  450.780079][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  450.780079][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  450.780079][   T10]      netlink_rcv_skb+0x130/0x360
[  450.780079][   T10]      netlink_unicast+0x449/0x710
[  450.780079][   T10]      netlink_sendmsg+0x723/0xbe0
[  450.780079][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  450.780079][   T10]      ___sys_sendmsg+0xee/0x170
[  450.780079][   T10]      __sys_sendmsg+0xcd/0x170
[  450.780079][   T10]      do_syscall_64+0xc6/0x1e0
[  450.780079][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  450.780079][   T10] 
[  450.782333][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  450.782333][   T10]      netdev_get_by_index+0x5e/0x80
[  450.782333][   T10]      fib6_nh_init+0x3d8/0x1580
[  450.782333][   T10]      ip6_route_info_create+0xf18/0x17d0
[  450.782333][   T10]      ip6_route_add+0x1c/0x140
[  450.782333][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  450.782333][   T10]      addrconf_add_dev+0xe2/0x170
[  450.782333][   T10]      inet6_addr_add+0x12f/0xa40
[  450.782333][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  450.782333][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  450.782333][   T10]      netlink_rcv_skb+0x130/0x360
[  450.782333][   T10]      netlink_unicast+0x449/0x710
[  450.782333][   T10]      netlink_sendmsg+0x723/0xbe0
[  450.782333][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  450.782333][   T10]      ___sys_sendmsg+0xee/0x170
[  450.782333][   T10]      __sys_sendmsg+0xcd/0x170
[  450.782333][   T10]      do_syscall_64+0xc6/0x1e0
[  450.782333][   T10] 
[  450.784556][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  450.784556][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  450.784556][   T10]      ipv6_find_idev+0x102/0x170
[  450.784556][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  450.784556][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  450.784556][   T10]      netlink_rcv_skb+0x130/0x360
[  450.784556][   T10]      netlink_unicast+0x449/0x710
[  450.784556][   T10]      netlink_sendmsg+0x723/0xbe0
[  450.784556][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  450.784556][   T10]      ___sys_sendmsg+0xee/0x170
[  450.784556][   T10]      __sys_sendmsg+0xcd/0x170
[  450.784556][   T10]      do_syscall_64+0xc6/0x1e0
[  450.784556][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  450.784556][   T10] 
[  450.786300][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  450.786300][   T10]      neigh_parms_alloc+0x1e5/0x510
[  450.786300][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  450.786300][   T10]      ipv6_find_idev+0x102/0x170
[  450.786300][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  450.786300][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  450.786300][   T10]      netlink_rcv_skb+0x130/0x360
[  450.786300][   T10]      netlink_unicast+0x449/0x710
[  450.786300][   T10]      netlink_sendmsg+0x723/0xbe0
[  450.786300][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  450.786300][   T10]      ___sys_sendmsg+0xee/0x170
[  450.786300][   T10]      __sys_sendmsg+0xcd/0x170
[  450.786300][   T10]      do_syscall_64+0xc6/0x1e0
[  450.786300][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  450.786300][   T10] 
[  461.041779][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  461.042259][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  461.042259][   T10]      dst_init+0x84/0x4a0
[  461.042259][   T10]      dst_alloc+0x97/0x150
[  461.042259][   T10]      ip6_dst_alloc+0x23/0x90
[  461.042259][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  461.042259][   T10]      ip6_pol_route+0x56f/0x840
[  461.042259][   T10]      fib6_rule_lookup+0x456/0x630
[  461.042259][   T10]      ip6_route_input+0x59c/0xa50
[  461.042259][   T10]      ipv6_rcv+0x397/0x810
[  461.042259][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  461.042259][   T10]      process_backlog+0x101/0x620
[  461.042259][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  461.042259][   T10]      net_rx_action+0x495/0xbe0
[  461.042259][   T10]      __do_softirq+0x1b5/0x7f6
[  461.042259][   T10] 
[  461.044198][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  461.044198][   T10]      netdev_get_by_index+0x5e/0x80
[  461.044198][   T10]      fib6_nh_init+0x3d8/0x1580
[  461.044198][   T10]      ip6_route_info_create+0xf18/0x17d0
[  461.044198][   T10]      ip6_route_add+0x1c/0x140
[  461.044198][   T10]      addrconf_prefix_route+0x2a6/0x430
[  461.044198][   T10]      inet6_addr_add+0x4f8/0xa40
[  461.044198][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  461.044198][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  461.044198][   T10]      netlink_rcv_skb+0x130/0x360
[  461.044198][   T10]      netlink_unicast+0x449/0x710
[  461.044198][   T10]      netlink_sendmsg+0x723/0xbe0
[  461.044198][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  461.044198][   T10]      ___sys_sendmsg+0xee/0x170
[  461.044198][   T10]      __sys_sendmsg+0xcd/0x170
[  461.044198][   T10]      do_syscall_64+0xc6/0x1e0
[  461.044198][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  461.044198][   T10] 
[  461.046544][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  461.046544][   T10]      netdev_get_by_index+0x5e/0x80
[  461.046544][   T10]      fib6_nh_init+0x3d8/0x1580
[  461.046544][   T10]      ip6_route_info_create+0xf18/0x17d0
[  461.046544][   T10]      addrconf_f6i_alloc+0x315/0x560
[  461.046544][   T10]      ipv6_add_addr+0x411/0x2000
[  461.046544][   T10]      inet6_addr_add+0x30e/0xa40
[  461.046544][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  461.046544][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  461.046544][   T10]      netlink_rcv_skb+0x130/0x360
[  461.046544][   T10]      netlink_unicast+0x449/0x710
[  461.046544][   T10]      netlink_sendmsg+0x723/0xbe0
[  461.046544][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  461.046544][   T10]      ___sys_sendmsg+0xee/0x170
[  461.046544][   T10]      __sys_sendmsg+0xcd/0x170
[  461.046544][   T10]      do_syscall_64+0xc6/0x1e0
[  461.046544][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  461.046544][   T10] 
[  461.048897][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  461.048897][   T10]      netdev_get_by_index+0x5e/0x80
[  461.048897][   T10]      fib6_nh_init+0x3d8/0x1580
[  461.048897][   T10]      ip6_route_info_create+0xf18/0x17d0
[  461.048897][   T10]      ip6_route_add+0x1c/0x140
[  461.048897][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  461.048897][   T10]      addrconf_add_dev+0xe2/0x170
[  461.048897][   T10]      inet6_addr_add+0x12f/0xa40
[  461.048897][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  461.048897][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  461.048897][   T10]      netlink_rcv_skb+0x130/0x360
[  461.048897][   T10]      netlink_unicast+0x449/0x710
[  461.048897][   T10]      netlink_sendmsg+0x723/0xbe0
[  461.048897][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  461.048897][   T10]      ___sys_sendmsg+0xee/0x170
[  461.048897][   T10]      __sys_sendmsg+0xcd/0x170
[  461.048897][   T10]      do_syscall_64+0xc6/0x1e0
[  461.048897][   T10] 
[  461.051240][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  461.051240][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  461.051240][   T10]      ipv6_find_idev+0x102/0x170
[  461.051240][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  461.051240][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  461.051240][   T10]      netlink_rcv_skb+0x130/0x360
[  461.051240][   T10]      netlink_unicast+0x449/0x710
[  461.051240][   T10]      netlink_sendmsg+0x723/0xbe0
[  461.051240][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  461.051240][   T10]      ___sys_sendmsg+0xee/0x170
[  461.051240][   T10]      __sys_sendmsg+0xcd/0x170
[  461.051240][   T10]      do_syscall_64+0xc6/0x1e0
[  461.051240][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  461.051240][   T10] 
[  461.053073][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  461.053073][   T10]      neigh_parms_alloc+0x1e5/0x510
[  461.053073][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  461.053073][   T10]      ipv6_find_idev+0x102/0x170
[  461.053073][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  461.053073][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  461.053073][   T10]      netlink_rcv_skb+0x130/0x360
[  461.053073][   T10]      netlink_unicast+0x449/0x710
[  461.053073][   T10]      netlink_sendmsg+0x723/0xbe0
[  461.053073][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  461.053073][   T10]      ___sys_sendmsg+0xee/0x170
[  461.053073][   T10]      __sys_sendmsg+0xcd/0x170
[  461.053073][   T10]      do_syscall_64+0xc6/0x1e0
[  461.053073][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  461.053073][   T10] 
[  461.055038][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  461.055310][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  461.055310][   T10]      dst_init+0x84/0x4a0
[  461.055310][   T10]      dst_alloc+0x97/0x150
[  461.055310][   T10]      ip6_dst_alloc+0x23/0x90
[  461.055310][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  461.055310][   T10]      ip6_pol_route+0x56f/0x840
[  461.055310][   T10]      fib6_rule_lookup+0x456/0x630
[  461.055310][   T10]      ip6_route_input+0x59c/0xa50
[  461.055310][   T10]      ipv6_rcv+0x397/0x810
[  461.055310][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  461.055310][   T10]      process_backlog+0x101/0x620
[  461.055310][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  461.055310][   T10]      net_rx_action+0x495/0xbe0
[  461.055310][   T10]      __do_softirq+0x1b5/0x7f6
[  461.055310][   T10] 
[  461.057228][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  461.057228][   T10]      netdev_get_by_index+0x5e/0x80
[  461.057228][   T10]      fib6_nh_init+0x3d8/0x1580
[  461.057228][   T10]      ip6_route_info_create+0xf18/0x17d0
[  461.057228][   T10]      ip6_route_add+0x1c/0x140
[  461.057228][   T10]      addrconf_prefix_route+0x2a6/0x430
[  461.057228][   T10]      inet6_addr_add+0x4f8/0xa40
[  461.057228][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  461.057228][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  461.057228][   T10]      netlink_rcv_skb+0x130/0x360
[  461.057228][   T10]      netlink_unicast+0x449/0x710
[  461.057228][   T10]      netlink_sendmsg+0x723/0xbe0
[  461.057228][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  461.057228][   T10]      ___sys_sendmsg+0xee/0x170
[  461.057228][   T10]      __sys_sendmsg+0xcd/0x170
[  461.057228][   T10]      do_syscall_64+0xc6/0x1e0
[  461.057228][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  461.057228][   T10] 
[  461.059578][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  461.059578][   T10]      netdev_get_by_index+0x5e/0x80
[  461.059578][   T10]      fib6_nh_init+0x3d8/0x1580
[  461.059578][   T10]      ip6_route_info_create+0xf18/0x17d0
[  461.059578][   T10]      addrconf_f6i_alloc+0x315/0x560
[  461.059578][   T10]      ipv6_add_addr+0x411/0x2000
[  461.059578][   T10]      inet6_addr_add+0x30e/0xa40
[  461.059578][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  461.059578][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  461.059578][   T10]      netlink_rcv_skb+0x130/0x360
[  461.059578][   T10]      netlink_unicast+0x449/0x710
[  461.059578][   T10]      netlink_sendmsg+0x723/0xbe0
[  461.059578][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  461.059578][   T10]      ___sys_sendmsg+0xee/0x170
[  461.059578][   T10]      __sys_sendmsg+0xcd/0x170
[  461.059578][   T10]      do_syscall_64+0xc6/0x1e0
[  461.059578][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  461.059578][   T10] 
[  461.061919][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  461.061919][   T10]      netdev_get_by_index+0x5e/0x80
[  461.061919][   T10]      fib6_nh_init+0x3d8/0x1580
[  461.061919][   T10]      ip6_route_info_create+0xf18/0x17d0
[  461.061919][   T10]      ip6_route_add+0x1c/0x140
[  461.061919][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  461.061919][   T10]      addrconf_add_dev+0xe2/0x170
[  461.061919][   T10]      inet6_addr_add+0x12f/0xa40
[  461.061919][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  461.061919][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  461.061919][   T10]      netlink_rcv_skb+0x130/0x360
[  461.061919][   T10]      netlink_unicast+0x449/0x710
[  461.061919][   T10]      netlink_sendmsg+0x723/0xbe0
[  461.061919][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  461.061919][   T10]      ___sys_sendmsg+0xee/0x170
[  461.061919][   T10]      __sys_sendmsg+0xcd/0x170
[  461.061919][   T10]      do_syscall_64+0xc6/0x1e0
[  461.061919][   T10] 
[  461.064202][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  461.064202][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  461.064202][   T10]      ipv6_find_idev+0x102/0x170
[  461.064202][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  461.064202][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  461.064202][   T10]      netlink_rcv_skb+0x130/0x360
[  461.064202][   T10]      netlink_unicast+0x449/0x710
[  461.064202][   T10]      netlink_sendmsg+0x723/0xbe0
[  461.064202][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  461.064202][   T10]      ___sys_sendmsg+0xee/0x170
[  461.064202][   T10]      __sys_sendmsg+0xcd/0x170
[  461.064202][   T10]      do_syscall_64+0xc6/0x1e0
[  461.064202][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  461.064202][   T10] 
[  461.066279][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  461.066279][   T10]      neigh_parms_alloc+0x1e5/0x510
[  461.066279][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  461.066279][   T10]      ipv6_find_idev+0x102/0x170
[  461.066279][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  461.066279][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  461.066279][   T10]      netlink_rcv_skb+0x130/0x360
[  461.066279][   T10]      netlink_unicast+0x449/0x710
[  461.066279][   T10]      netlink_sendmsg+0x723/0xbe0
[  461.066279][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  461.066279][   T10]      ___sys_sendmsg+0xee/0x170
[  461.066279][   T10]      __sys_sendmsg+0xcd/0x170
[  461.066279][   T10]      do_syscall_64+0xc6/0x1e0
[  461.066279][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  461.066279][   T10] 
[  471.321827][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  471.322291][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  471.322291][   T10]      dst_init+0x84/0x4a0
[  471.322291][   T10]      dst_alloc+0x97/0x150
[  471.322291][   T10]      ip6_dst_alloc+0x23/0x90
[  471.322291][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  471.322291][   T10]      ip6_pol_route+0x56f/0x840
[  471.322291][   T10]      fib6_rule_lookup+0x456/0x630
[  471.322291][   T10]      ip6_route_input+0x59c/0xa50
[  471.322291][   T10]      ipv6_rcv+0x397/0x810
[  471.322291][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  471.322291][   T10]      process_backlog+0x101/0x620
[  471.322291][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  471.322291][   T10]      net_rx_action+0x495/0xbe0
[  471.322291][   T10]      __do_softirq+0x1b5/0x7f6
[  471.322291][   T10] 
[  471.324248][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  471.324248][   T10]      netdev_get_by_index+0x5e/0x80
[  471.324248][   T10]      fib6_nh_init+0x3d8/0x1580
[  471.324248][   T10]      ip6_route_info_create+0xf18/0x17d0
[  471.324248][   T10]      ip6_route_add+0x1c/0x140
[  471.324248][   T10]      addrconf_prefix_route+0x2a6/0x430
[  471.324248][   T10]      inet6_addr_add+0x4f8/0xa40
[  471.324248][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  471.324248][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  471.324248][   T10]      netlink_rcv_skb+0x130/0x360
[  471.324248][   T10]      netlink_unicast+0x449/0x710
[  471.324248][   T10]      netlink_sendmsg+0x723/0xbe0
[  471.324248][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  471.324248][   T10]      ___sys_sendmsg+0xee/0x170
[  471.324248][   T10]      __sys_sendmsg+0xcd/0x170
[  471.324248][   T10]      do_syscall_64+0xc6/0x1e0
[  471.324248][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  471.324248][   T10] 
[  471.326582][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  471.326582][   T10]      netdev_get_by_index+0x5e/0x80
[  471.326582][   T10]      fib6_nh_init+0x3d8/0x1580
[  471.326582][   T10]      ip6_route_info_create+0xf18/0x17d0
[  471.326582][   T10]      addrconf_f6i_alloc+0x315/0x560
[  471.326582][   T10]      ipv6_add_addr+0x411/0x2000
[  471.326582][   T10]      inet6_addr_add+0x30e/0xa40
[  471.326582][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  471.326582][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  471.326582][   T10]      netlink_rcv_skb+0x130/0x360
[  471.326582][   T10]      netlink_unicast+0x449/0x710
[  471.326582][   T10]      netlink_sendmsg+0x723/0xbe0
[  471.326582][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  471.326582][   T10]      ___sys_sendmsg+0xee/0x170
[  471.326582][   T10]      __sys_sendmsg+0xcd/0x170
[  471.326582][   T10]      do_syscall_64+0xc6/0x1e0
[  471.326582][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  471.326582][   T10] 
[  471.329051][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  471.329051][   T10]      netdev_get_by_index+0x5e/0x80
[  471.329051][   T10]      fib6_nh_init+0x3d8/0x1580
[  471.329051][   T10]      ip6_route_info_create+0xf18/0x17d0
[  471.329051][   T10]      ip6_route_add+0x1c/0x140
[  471.329051][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  471.329051][   T10]      addrconf_add_dev+0xe2/0x170
[  471.329051][   T10]      inet6_addr_add+0x12f/0xa40
[  471.329051][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  471.329051][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  471.329051][   T10]      netlink_rcv_skb+0x130/0x360
[  471.329051][   T10]      netlink_unicast+0x449/0x710
[  471.329051][   T10]      netlink_sendmsg+0x723/0xbe0
[  471.329051][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  471.329051][   T10]      ___sys_sendmsg+0xee/0x170
[  471.329051][   T10]      __sys_sendmsg+0xcd/0x170
[  471.329051][   T10]      do_syscall_64+0xc6/0x1e0
[  471.329051][   T10] 
[  471.331355][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  471.331355][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  471.331355][   T10]      ipv6_find_idev+0x102/0x170
[  471.331355][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  471.331355][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  471.331355][   T10]      netlink_rcv_skb+0x130/0x360
[  471.331355][   T10]      netlink_unicast+0x449/0x710
[  471.331355][   T10]      netlink_sendmsg+0x723/0xbe0
[  471.331355][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  471.331355][   T10]      ___sys_sendmsg+0xee/0x170
[  471.331355][   T10]      __sys_sendmsg+0xcd/0x170
[  471.331355][   T10]      do_syscall_64+0xc6/0x1e0
[  471.331355][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  471.331355][   T10] 
[  471.333153][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  471.333153][   T10]      neigh_parms_alloc+0x1e5/0x510
[  471.333153][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  471.333153][   T10]      ipv6_find_idev+0x102/0x170
[  471.333153][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  471.333153][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  471.333153][   T10]      netlink_rcv_skb+0x130/0x360
[  471.333153][   T10]      netlink_unicast+0x449/0x710
[  471.333153][   T10]      netlink_sendmsg+0x723/0xbe0
[  471.333153][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  471.333153][   T10]      ___sys_sendmsg+0xee/0x170
[  471.333153][   T10]      __sys_sendmsg+0xcd/0x170
[  471.333153][   T10]      do_syscall_64+0xc6/0x1e0
[  471.333153][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  471.333153][   T10] 
[  471.335414][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  471.335755][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  471.335755][   T10]      dst_init+0x84/0x4a0
[  471.335755][   T10]      dst_alloc+0x97/0x150
[  471.335755][   T10]      ip6_dst_alloc+0x23/0x90
[  471.335755][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  471.335755][   T10]      ip6_pol_route+0x56f/0x840
[  471.335755][   T10]      fib6_rule_lookup+0x456/0x630
[  471.335755][   T10]      ip6_route_input+0x59c/0xa50
[  471.335755][   T10]      ipv6_rcv+0x397/0x810
[  471.335755][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  471.335755][   T10]      process_backlog+0x101/0x620
[  471.335755][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  471.335755][   T10]      net_rx_action+0x495/0xbe0
[  471.335755][   T10]      __do_softirq+0x1b5/0x7f6
[  471.335755][   T10] 
[  471.337683][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  471.337683][   T10]      netdev_get_by_index+0x5e/0x80
[  471.337683][   T10]      fib6_nh_init+0x3d8/0x1580
[  471.337683][   T10]      ip6_route_info_create+0xf18/0x17d0
[  471.337683][   T10]      ip6_route_add+0x1c/0x140
[  471.337683][   T10]      addrconf_prefix_route+0x2a6/0x430
[  471.337683][   T10]      inet6_addr_add+0x4f8/0xa40
[  471.337683][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  471.337683][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  471.337683][   T10]      netlink_rcv_skb+0x130/0x360
[  471.337683][   T10]      netlink_unicast+0x449/0x710
[  471.337683][   T10]      netlink_sendmsg+0x723/0xbe0
[  471.337683][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  471.337683][   T10]      ___sys_sendmsg+0xee/0x170
[  471.337683][   T10]      __sys_sendmsg+0xcd/0x170
[  471.337683][   T10]      do_syscall_64+0xc6/0x1e0
[  471.337683][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  471.337683][   T10] 
[  471.340037][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  471.340037][   T10]      netdev_get_by_index+0x5e/0x80
[  471.340037][   T10]      fib6_nh_init+0x3d8/0x1580
[  471.340037][   T10]      ip6_route_info_create+0xf18/0x17d0
[  471.340037][   T10]      addrconf_f6i_alloc+0x315/0x560
[  471.340037][   T10]      ipv6_add_addr+0x411/0x2000
[  471.340037][   T10]      inet6_addr_add+0x30e/0xa40
[  471.340037][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  471.340037][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  471.340037][   T10]      netlink_rcv_skb+0x130/0x360
[  471.340037][   T10]      netlink_unicast+0x449/0x710
[  471.340037][   T10]      netlink_sendmsg+0x723/0xbe0
[  471.340037][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  471.340037][   T10]      ___sys_sendmsg+0xee/0x170
[  471.340037][   T10]      __sys_sendmsg+0xcd/0x170
[  471.340037][   T10]      do_syscall_64+0xc6/0x1e0
[  471.340037][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  471.340037][   T10] 
[  471.342370][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  471.342370][   T10]      netdev_get_by_index+0x5e/0x80
[  471.342370][   T10]      fib6_nh_init+0x3d8/0x1580
[  471.342370][   T10]      ip6_route_info_create+0xf18/0x17d0
[  471.342370][   T10]      ip6_route_add+0x1c/0x140
[  471.342370][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  471.342370][   T10]      addrconf_add_dev+0xe2/0x170
[  471.342370][   T10]      inet6_addr_add+0x12f/0xa40
[  471.342370][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  471.342370][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  471.342370][   T10]      netlink_rcv_skb+0x130/0x360
[  471.342370][   T10]      netlink_unicast+0x449/0x710
[  471.342370][   T10]      netlink_sendmsg+0x723/0xbe0
[  471.342370][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  471.342370][   T10]      ___sys_sendmsg+0xee/0x170
[  471.342370][   T10]      __sys_sendmsg+0xcd/0x170
[  471.342370][   T10]      do_syscall_64+0xc6/0x1e0
[  471.342370][   T10] 
[  471.344696][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  471.344696][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  471.344696][   T10]      ipv6_find_idev+0x102/0x170
[  471.344696][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  471.344696][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  471.344696][   T10]      netlink_rcv_skb+0x130/0x360
[  471.344696][   T10]      netlink_unicast+0x449/0x710
[  471.344696][   T10]      netlink_sendmsg+0x723/0xbe0
[  471.344696][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  471.344696][   T10]      ___sys_sendmsg+0xee/0x170
[  471.344696][   T10]      __sys_sendmsg+0xcd/0x170
[  471.344696][   T10]      do_syscall_64+0xc6/0x1e0
[  471.344696][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  471.344696][   T10] 
[  471.346511][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  471.346511][   T10]      neigh_parms_alloc+0x1e5/0x510
[  471.346511][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  471.346511][   T10]      ipv6_find_idev+0x102/0x170
[  471.346511][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  471.346511][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  471.346511][   T10]      netlink_rcv_skb+0x130/0x360
[  471.346511][   T10]      netlink_unicast+0x449/0x710
[  471.346511][   T10]      netlink_sendmsg+0x723/0xbe0
[  471.346511][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  471.346511][   T10]      ___sys_sendmsg+0xee/0x170
[  471.346511][   T10]      __sys_sendmsg+0xcd/0x170
[  471.346511][   T10]      do_syscall_64+0xc6/0x1e0
[  471.346511][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  471.346511][   T10] 
[  481.601810][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  481.602264][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  481.602264][   T10]      dst_init+0x84/0x4a0
[  481.602264][   T10]      dst_alloc+0x97/0x150
[  481.602264][   T10]      ip6_dst_alloc+0x23/0x90
[  481.602264][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  481.602264][   T10]      ip6_pol_route+0x56f/0x840
[  481.602264][   T10]      fib6_rule_lookup+0x456/0x630
[  481.602264][   T10]      ip6_route_input+0x59c/0xa50
[  481.602264][   T10]      ipv6_rcv+0x397/0x810
[  481.602264][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  481.602264][   T10]      process_backlog+0x101/0x620
[  481.602264][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  481.602264][   T10]      net_rx_action+0x495/0xbe0
[  481.602264][   T10]      __do_softirq+0x1b5/0x7f6
[  481.602264][   T10] 
[  481.604217][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  481.604217][   T10]      netdev_get_by_index+0x5e/0x80
[  481.604217][   T10]      fib6_nh_init+0x3d8/0x1580
[  481.604217][   T10]      ip6_route_info_create+0xf18/0x17d0
[  481.604217][   T10]      ip6_route_add+0x1c/0x140
[  481.604217][   T10]      addrconf_prefix_route+0x2a6/0x430
[  481.604217][   T10]      inet6_addr_add+0x4f8/0xa40
[  481.604217][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  481.604217][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  481.604217][   T10]      netlink_rcv_skb+0x130/0x360
[  481.604217][   T10]      netlink_unicast+0x449/0x710
[  481.604217][   T10]      netlink_sendmsg+0x723/0xbe0
[  481.604217][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  481.604217][   T10]      ___sys_sendmsg+0xee/0x170
[  481.604217][   T10]      __sys_sendmsg+0xcd/0x170
[  481.604217][   T10]      do_syscall_64+0xc6/0x1e0
[  481.604217][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  481.604217][   T10] 
[  481.606604][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  481.606604][   T10]      netdev_get_by_index+0x5e/0x80
[  481.606604][   T10]      fib6_nh_init+0x3d8/0x1580
[  481.606604][   T10]      ip6_route_info_create+0xf18/0x17d0
[  481.606604][   T10]      addrconf_f6i_alloc+0x315/0x560
[  481.606604][   T10]      ipv6_add_addr+0x411/0x2000
[  481.606604][   T10]      inet6_addr_add+0x30e/0xa40
[  481.606604][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  481.606604][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  481.606604][   T10]      netlink_rcv_skb+0x130/0x360
[  481.606604][   T10]      netlink_unicast+0x449/0x710
[  481.606604][   T10]      netlink_sendmsg+0x723/0xbe0
[  481.606604][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  481.606604][   T10]      ___sys_sendmsg+0xee/0x170
[  481.606604][   T10]      __sys_sendmsg+0xcd/0x170
[  481.606604][   T10]      do_syscall_64+0xc6/0x1e0
[  481.606604][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  481.606604][   T10] 
[  481.608972][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  481.608972][   T10]      netdev_get_by_index+0x5e/0x80
[  481.608972][   T10]      fib6_nh_init+0x3d8/0x1580
[  481.608972][   T10]      ip6_route_info_create+0xf18/0x17d0
[  481.608972][   T10]      ip6_route_add+0x1c/0x140
[  481.608972][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  481.608972][   T10]      addrconf_add_dev+0xe2/0x170
[  481.608972][   T10]      inet6_addr_add+0x12f/0xa40
[  481.608972][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  481.608972][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  481.608972][   T10]      netlink_rcv_skb+0x130/0x360
[  481.608972][   T10]      netlink_unicast+0x449/0x710
[  481.608972][   T10]      netlink_sendmsg+0x723/0xbe0
[  481.608972][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  481.608972][   T10]      ___sys_sendmsg+0xee/0x170
[  481.608972][   T10]      __sys_sendmsg+0xcd/0x170
[  481.608972][   T10]      do_syscall_64+0xc6/0x1e0
[  481.608972][   T10] 
[  481.611312][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  481.611312][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  481.611312][   T10]      ipv6_find_idev+0x102/0x170
[  481.611312][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  481.611312][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  481.611312][   T10]      netlink_rcv_skb+0x130/0x360
[  481.611312][   T10]      netlink_unicast+0x449/0x710
[  481.611312][   T10]      netlink_sendmsg+0x723/0xbe0
[  481.611312][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  481.611312][   T10]      ___sys_sendmsg+0xee/0x170
[  481.611312][   T10]      __sys_sendmsg+0xcd/0x170
[  481.611312][   T10]      do_syscall_64+0xc6/0x1e0
[  481.611312][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  481.611312][   T10] 
[  481.613126][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  481.613126][   T10]      neigh_parms_alloc+0x1e5/0x510
[  481.613126][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  481.613126][   T10]      ipv6_find_idev+0x102/0x170
[  481.613126][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  481.613126][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  481.613126][   T10]      netlink_rcv_skb+0x130/0x360
[  481.613126][   T10]      netlink_unicast+0x449/0x710
[  481.613126][   T10]      netlink_sendmsg+0x723/0xbe0
[  481.613126][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  481.613126][   T10]      ___sys_sendmsg+0xee/0x170
[  481.613126][   T10]      __sys_sendmsg+0xcd/0x170
[  481.613126][   T10]      do_syscall_64+0xc6/0x1e0
[  481.613126][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  481.613126][   T10] 
[  481.615114][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  481.615399][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  481.615399][   T10]      dst_init+0x84/0x4a0
[  481.615399][   T10]      dst_alloc+0x97/0x150
[  481.615399][   T10]      ip6_dst_alloc+0x23/0x90
[  481.615399][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  481.615399][   T10]      ip6_pol_route+0x56f/0x840
[  481.615399][   T10]      fib6_rule_lookup+0x456/0x630
[  481.615399][   T10]      ip6_route_input+0x59c/0xa50
[  481.615399][   T10]      ipv6_rcv+0x397/0x810
[  481.615399][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  481.615399][   T10]      process_backlog+0x101/0x620
[  481.615399][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  481.615399][   T10]      net_rx_action+0x495/0xbe0
[  481.615399][   T10]      __do_softirq+0x1b5/0x7f6
[  481.615399][   T10] 
[  481.617305][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  481.617305][   T10]      netdev_get_by_index+0x5e/0x80
[  481.617305][   T10]      fib6_nh_init+0x3d8/0x1580
[  481.617305][   T10]      ip6_route_info_create+0xf18/0x17d0
[  481.617305][   T10]      ip6_route_add+0x1c/0x140
[  481.617305][   T10]      addrconf_prefix_route+0x2a6/0x430
[  481.617305][   T10]      inet6_addr_add+0x4f8/0xa40
[  481.617305][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  481.617305][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  481.617305][   T10]      netlink_rcv_skb+0x130/0x360
[  481.617305][   T10]      netlink_unicast+0x449/0x710
[  481.617305][   T10]      netlink_sendmsg+0x723/0xbe0
[  481.617305][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  481.617305][   T10]      ___sys_sendmsg+0xee/0x170
[  481.617305][   T10]      __sys_sendmsg+0xcd/0x170
[  481.617305][   T10]      do_syscall_64+0xc6/0x1e0
[  481.617305][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  481.617305][   T10] 
[  481.619640][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  481.619640][   T10]      netdev_get_by_index+0x5e/0x80
[  481.619640][   T10]      fib6_nh_init+0x3d8/0x1580
[  481.619640][   T10]      ip6_route_info_create+0xf18/0x17d0
[  481.619640][   T10]      addrconf_f6i_alloc+0x315/0x560
[  481.619640][   T10]      ipv6_add_addr+0x411/0x2000
[  481.619640][   T10]      inet6_addr_add+0x30e/0xa40
[  481.619640][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  481.619640][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  481.619640][   T10]      netlink_rcv_skb+0x130/0x360
[  481.619640][   T10]      netlink_unicast+0x449/0x710
[  481.619640][   T10]      netlink_sendmsg+0x723/0xbe0
[  481.619640][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  481.619640][   T10]      ___sys_sendmsg+0xee/0x170
[  481.619640][   T10]      __sys_sendmsg+0xcd/0x170
[  481.619640][   T10]      do_syscall_64+0xc6/0x1e0
[  481.619640][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  481.619640][   T10] 
[  481.621983][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  481.621983][   T10]      netdev_get_by_index+0x5e/0x80
[  481.621983][   T10]      fib6_nh_init+0x3d8/0x1580
[  481.621983][   T10]      ip6_route_info_create+0xf18/0x17d0
[  481.621983][   T10]      ip6_route_add+0x1c/0x140
[  481.621983][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  481.621983][   T10]      addrconf_add_dev+0xe2/0x170
[  481.621983][   T10]      inet6_addr_add+0x12f/0xa40
[  481.621983][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  481.621983][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  481.621983][   T10]      netlink_rcv_skb+0x130/0x360
[  481.621983][   T10]      netlink_unicast+0x449/0x710
[  481.621983][   T10]      netlink_sendmsg+0x723/0xbe0
[  481.621983][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  481.621983][   T10]      ___sys_sendmsg+0xee/0x170
[  481.621983][   T10]      __sys_sendmsg+0xcd/0x170
[  481.621983][   T10]      do_syscall_64+0xc6/0x1e0
[  481.621983][   T10] 
[  481.624282][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  481.624282][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  481.624282][   T10]      ipv6_find_idev+0x102/0x170
[  481.624282][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  481.624282][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  481.624282][   T10]      netlink_rcv_skb+0x130/0x360
[  481.624282][   T10]      netlink_unicast+0x449/0x710
[  481.624282][   T10]      netlink_sendmsg+0x723/0xbe0
[  481.624282][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  481.624282][   T10]      ___sys_sendmsg+0xee/0x170
[  481.624282][   T10]      __sys_sendmsg+0xcd/0x170
[  481.624282][   T10]      do_syscall_64+0xc6/0x1e0
[  481.624282][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  481.624282][   T10] 
[  481.626079][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  481.626079][   T10]      neigh_parms_alloc+0x1e5/0x510
[  481.626079][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  481.626079][   T10]      ipv6_find_idev+0x102/0x170
[  481.626079][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  481.626079][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  481.626079][   T10]      netlink_rcv_skb+0x130/0x360
[  481.626079][   T10]      netlink_unicast+0x449/0x710
[  481.626079][   T10]      netlink_sendmsg+0x723/0xbe0
[  481.626079][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  481.626079][   T10]      ___sys_sendmsg+0xee/0x170
[  481.626079][   T10]      __sys_sendmsg+0xcd/0x170
[  481.626079][   T10]      do_syscall_64+0xc6/0x1e0
[  481.626079][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  481.626079][   T10] 
[  491.881824][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  491.882305][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  491.882305][   T10]      dst_init+0x84/0x4a0
[  491.882305][   T10]      dst_alloc+0x97/0x150
[  491.882305][   T10]      ip6_dst_alloc+0x23/0x90
[  491.882305][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  491.882305][   T10]      ip6_pol_route+0x56f/0x840
[  491.882305][   T10]      fib6_rule_lookup+0x456/0x630
[  491.882305][   T10]      ip6_route_input+0x59c/0xa50
[  491.882305][   T10]      ipv6_rcv+0x397/0x810
[  491.882305][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  491.882305][   T10]      process_backlog+0x101/0x620
[  491.882305][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  491.882305][   T10]      net_rx_action+0x495/0xbe0
[  491.882305][   T10]      __do_softirq+0x1b5/0x7f6
[  491.882305][   T10] 
[  491.884290][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  491.884290][   T10]      netdev_get_by_index+0x5e/0x80
[  491.884290][   T10]      fib6_nh_init+0x3d8/0x1580
[  491.884290][   T10]      ip6_route_info_create+0xf18/0x17d0
[  491.884290][   T10]      ip6_route_add+0x1c/0x140
[  491.884290][   T10]      addrconf_prefix_route+0x2a6/0x430
[  491.884290][   T10]      inet6_addr_add+0x4f8/0xa40
[  491.884290][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  491.884290][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  491.884290][   T10]      netlink_rcv_skb+0x130/0x360
[  491.884290][   T10]      netlink_unicast+0x449/0x710
[  491.884290][   T10]      netlink_sendmsg+0x723/0xbe0
[  491.884290][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  491.884290][   T10]      ___sys_sendmsg+0xee/0x170
[  491.884290][   T10]      __sys_sendmsg+0xcd/0x170
[  491.884290][   T10]      do_syscall_64+0xc6/0x1e0
[  491.884290][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  491.884290][   T10] 
[  491.886688][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  491.886688][   T10]      netdev_get_by_index+0x5e/0x80
[  491.886688][   T10]      fib6_nh_init+0x3d8/0x1580
[  491.886688][   T10]      ip6_route_info_create+0xf18/0x17d0
[  491.886688][   T10]      addrconf_f6i_alloc+0x315/0x560
[  491.886688][   T10]      ipv6_add_addr+0x411/0x2000
[  491.886688][   T10]      inet6_addr_add+0x30e/0xa40
[  491.886688][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  491.886688][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  491.886688][   T10]      netlink_rcv_skb+0x130/0x360
[  491.886688][   T10]      netlink_unicast+0x449/0x710
[  491.886688][   T10]      netlink_sendmsg+0x723/0xbe0
[  491.886688][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  491.886688][   T10]      ___sys_sendmsg+0xee/0x170
[  491.886688][   T10]      __sys_sendmsg+0xcd/0x170
[  491.886688][   T10]      do_syscall_64+0xc6/0x1e0
[  491.886688][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  491.886688][   T10] 
[  491.889089][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  491.889089][   T10]      netdev_get_by_index+0x5e/0x80
[  491.889089][   T10]      fib6_nh_init+0x3d8/0x1580
[  491.889089][   T10]      ip6_route_info_create+0xf18/0x17d0
[  491.889089][   T10]      ip6_route_add+0x1c/0x140
[  491.889089][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  491.889089][   T10]      addrconf_add_dev+0xe2/0x170
[  491.889089][   T10]      inet6_addr_add+0x12f/0xa40
[  491.889089][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  491.889089][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  491.889089][   T10]      netlink_rcv_skb+0x130/0x360
[  491.889089][   T10]      netlink_unicast+0x449/0x710
[  491.889089][   T10]      netlink_sendmsg+0x723/0xbe0
[  491.889089][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  491.889089][   T10]      ___sys_sendmsg+0xee/0x170
[  491.889089][   T10]      __sys_sendmsg+0xcd/0x170
[  491.889089][   T10]      do_syscall_64+0xc6/0x1e0
[  491.889089][   T10] 
[  491.891457][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  491.891457][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  491.891457][   T10]      ipv6_find_idev+0x102/0x170
[  491.891457][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  491.891457][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  491.891457][   T10]      netlink_rcv_skb+0x130/0x360
[  491.891457][   T10]      netlink_unicast+0x449/0x710
[  491.891457][   T10]      netlink_sendmsg+0x723/0xbe0
[  491.891457][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  491.891457][   T10]      ___sys_sendmsg+0xee/0x170
[  491.891457][   T10]      __sys_sendmsg+0xcd/0x170
[  491.891457][   T10]      do_syscall_64+0xc6/0x1e0
[  491.891457][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  491.891457][   T10] 
[  491.893305][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  491.893305][   T10]      neigh_parms_alloc+0x1e5/0x510
[  491.893305][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  491.893305][   T10]      ipv6_find_idev+0x102/0x170
[  491.893305][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  491.893305][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  491.893305][   T10]      netlink_rcv_skb+0x130/0x360
[  491.893305][   T10]      netlink_unicast+0x449/0x710
[  491.893305][   T10]      netlink_sendmsg+0x723/0xbe0
[  491.893305][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  491.893305][   T10]      ___sys_sendmsg+0xee/0x170
[  491.893305][   T10]      __sys_sendmsg+0xcd/0x170
[  491.893305][   T10]      do_syscall_64+0xc6/0x1e0
[  491.893305][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  491.893305][   T10] 
[  491.895355][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  491.895636][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  491.895636][   T10]      dst_init+0x84/0x4a0
[  491.895636][   T10]      dst_alloc+0x97/0x150
[  491.895636][   T10]      ip6_dst_alloc+0x23/0x90
[  491.895636][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  491.895636][   T10]      ip6_pol_route+0x56f/0x840
[  491.895636][   T10]      fib6_rule_lookup+0x456/0x630
[  491.895636][   T10]      ip6_route_input+0x59c/0xa50
[  491.895636][   T10]      ipv6_rcv+0x397/0x810
[  491.895636][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  491.895636][   T10]      process_backlog+0x101/0x620
[  491.895636][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  491.895636][   T10]      net_rx_action+0x495/0xbe0
[  491.895636][   T10]      __do_softirq+0x1b5/0x7f6
[  491.895636][   T10] 
[  491.897602][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  491.897602][   T10]      netdev_get_by_index+0x5e/0x80
[  491.897602][   T10]      fib6_nh_init+0x3d8/0x1580
[  491.897602][   T10]      ip6_route_info_create+0xf18/0x17d0
[  491.897602][   T10]      ip6_route_add+0x1c/0x140
[  491.897602][   T10]      addrconf_prefix_route+0x2a6/0x430
[  491.897602][   T10]      inet6_addr_add+0x4f8/0xa40
[  491.897602][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  491.897602][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  491.897602][   T10]      netlink_rcv_skb+0x130/0x360
[  491.897602][   T10]      netlink_unicast+0x449/0x710
[  491.897602][   T10]      netlink_sendmsg+0x723/0xbe0
[  491.897602][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  491.897602][   T10]      ___sys_sendmsg+0xee/0x170
[  491.897602][   T10]      __sys_sendmsg+0xcd/0x170
[  491.897602][   T10]      do_syscall_64+0xc6/0x1e0
[  491.897602][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  491.897602][   T10] 
[  491.900010][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  491.900010][   T10]      netdev_get_by_index+0x5e/0x80
[  491.900010][   T10]      fib6_nh_init+0x3d8/0x1580
[  491.900010][   T10]      ip6_route_info_create+0xf18/0x17d0
[  491.900010][   T10]      addrconf_f6i_alloc+0x315/0x560
[  491.900010][   T10]      ipv6_add_addr+0x411/0x2000
[  491.900010][   T10]      inet6_addr_add+0x30e/0xa40
[  491.900010][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  491.900010][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  491.900010][   T10]      netlink_rcv_skb+0x130/0x360
[  491.900010][   T10]      netlink_unicast+0x449/0x710
[  491.900010][   T10]      netlink_sendmsg+0x723/0xbe0
[  491.900010][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  491.900010][   T10]      ___sys_sendmsg+0xee/0x170
[  491.900010][   T10]      __sys_sendmsg+0xcd/0x170
[  491.900010][   T10]      do_syscall_64+0xc6/0x1e0
[  491.900010][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  491.900010][   T10] 
[  491.902398][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  491.902398][   T10]      netdev_get_by_index+0x5e/0x80
[  491.902398][   T10]      fib6_nh_init+0x3d8/0x1580
[  491.902398][   T10]      ip6_route_info_create+0xf18/0x17d0
[  491.902398][   T10]      ip6_route_add+0x1c/0x140
[  491.902398][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  491.902398][   T10]      addrconf_add_dev+0xe2/0x170
[  491.902398][   T10]      inet6_addr_add+0x12f/0xa40
[  491.902398][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  491.902398][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  491.902398][   T10]      netlink_rcv_skb+0x130/0x360
[  491.902398][   T10]      netlink_unicast+0x449/0x710
[  491.902398][   T10]      netlink_sendmsg+0x723/0xbe0
[  491.902398][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  491.902398][   T10]      ___sys_sendmsg+0xee/0x170
[  491.902398][   T10]      __sys_sendmsg+0xcd/0x170
[  491.902398][   T10]      do_syscall_64+0xc6/0x1e0
[  491.902398][   T10] 
[  491.904754][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  491.904754][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  491.904754][   T10]      ipv6_find_idev+0x102/0x170
[  491.904754][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  491.904754][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  491.904754][   T10]      netlink_rcv_skb+0x130/0x360
[  491.904754][   T10]      netlink_unicast+0x449/0x710
[  491.904754][   T10]      netlink_sendmsg+0x723/0xbe0
[  491.904754][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  491.904754][   T10]      ___sys_sendmsg+0xee/0x170
[  491.904754][   T10]      __sys_sendmsg+0xcd/0x170
[  491.904754][   T10]      do_syscall_64+0xc6/0x1e0
[  491.904754][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  491.904754][   T10] 
[  491.906931][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  491.906931][   T10]      neigh_parms_alloc+0x1e5/0x510
[  491.906931][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  491.906931][   T10]      ipv6_find_idev+0x102/0x170
[  491.906931][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  491.906931][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  491.906931][   T10]      netlink_rcv_skb+0x130/0x360
[  491.906931][   T10]      netlink_unicast+0x449/0x710
[  491.906931][   T10]      netlink_sendmsg+0x723/0xbe0
[  491.906931][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  491.906931][   T10]      ___sys_sendmsg+0xee/0x170
[  491.906931][   T10]      __sys_sendmsg+0xcd/0x170
[  491.906931][   T10]      do_syscall_64+0xc6/0x1e0
[  491.906931][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  491.906931][   T10] 
[  492.841741][   T42] INFO: task modprobe:376 blocked for more than 368 seconds.
[  492.842141][   T42]       Not tainted 6.8.0-virtme #1
[  492.842291][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  492.842538][   T42] task:modprobe        state:D stack:25648 pid:376   tgid:376   ppid:39     flags:0x00004002
[  492.842856][   T42] Call Trace:
[  492.842971][   T42]  <TASK>
[  492.843058][   T42]  __schedule+0x705/0x1ac0
[  492.843222][   T42]  ? __pfx___schedule+0x10/0x10
[  492.843371][   T42]  ? schedule+0x1a5/0x210
[  492.843488][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  492.843647][   T42]  ? mark_lock+0x38/0x3e0
[  492.843797][   T42]  ? do_raw_spin_lock+0x131/0x270
[  492.844026][   T42]  ? schedule+0x1a5/0x210
[  492.844203][   T42]  schedule+0xdf/0x210
[  492.844361][   T42]  schedule_preempt_disabled+0x15/0x30
[  492.844573][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[  492.844790][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[  492.845040][   T42]  ? kasan_save_stack+0x34/0x50
[  492.845256][   T42]  ? kasan_save_stack+0x24/0x50
[  492.845456][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  492.845681][   T42]  ? lock_acquire+0x1c1/0x220
[  492.845889][   T42]  ? register_pernet_subsys+0x1a/0x50
[  492.846105][   T42]  down_write+0x1c9/0x200
[  492.846263][   T42]  ? __pfx_down_write+0x10/0x10
[  492.846491][   T42]  ? __pfx___lock_release+0x10/0x10
[  492.846732][   T42]  ? __pfx_nf_defrag_init+0x10/0x10 [nf_defrag_ipv4]
[  492.846956][   T42]  register_pernet_subsys+0x1a/0x50
[  492.847111][   T42]  nf_defrag_init+0x19/0xff0 [nf_defrag_ipv4]
[  492.847299][   T42]  do_one_initcall+0xc8/0x3f0
[  492.847450][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[  492.847605][   T42]  ? __create_object+0x5e/0xb0
[  492.847767][   T42]  ? kasan_unpoison+0x27/0x60
[  492.847932][   T42]  do_init_module+0x233/0x740
[  492.848104][   T42]  load_module+0x16b5/0x2350
[  492.848264][   T42]  ? __pfx_load_module+0x10/0x10
[  492.848414][   T42]  ? kernel_read_file+0x3d2/0x520
[  492.848600][   T42]  ? kernel_read_file+0x300/0x520
[  492.848761][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[  492.848921][   T42]  ? init_module_from_file+0xd2/0x130
[  492.849073][   T42]  init_module_from_file+0xd2/0x130
[  492.849224][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[  492.849407][   T42]  ? __lock_release+0x103/0x460
[  492.849557][   T42]  ? idempotent_init_module+0x32a/0x620
[  492.849737][   T42]  ? idempotent_init_module+0x32a/0x620
[  492.849888][   T42]  ? do_raw_spin_unlock+0x58/0x220
[  492.850045][   T42]  idempotent_init_module+0x342/0x620
[  492.850200][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[  492.850405][   T42]  __x64_sys_finit_module+0xbe/0x130
[  492.850557][   T42]  do_syscall_64+0xc6/0x1e0
[  492.850729][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  492.850922][   T42] RIP: 0033:0x7f5fd44b2e5d
[  492.851076][   T42] RSP: 002b:00007ffcc85e8928 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  492.851302][   T42] RAX: ffffffffffffffda RBX: 000055d19cb2e8d0 RCX: 00007f5fd44b2e5d
[  492.851521][   T42] RDX: 0000000000000000 RSI: 000055d18f6a6a2a RDI: 0000000000000000
[  492.851752][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 000055d19cb2dc10
[  492.851980][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055d18f6a6a2a
[  492.852199][   T42] R13: 000055d19cb2e880 R14: 000055d19cb2f710 R15: 0000000000000000
[  492.852444][   T42]  </TASK>
[  492.852556][   T42] 
[  492.852556][   T42] Showing all locks held in the system:
[  492.852774][   T42] 3 locks held by kworker/u16:0/10:
[  492.852922][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  492.853217][   T42]  #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  492.853478][   T42]  #2: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[  492.853760][   T42] 2 locks held by kworker/u20:0/39:
[  492.853914][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  492.854206][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  492.854522][   T42] 1 lock held by khungtaskd/42:
[  492.854662][   T42]  #0: ffffffff9b5591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[  492.854965][   T42] 1 lock held by modprobe/376:
[  492.855106][   T42]  #0: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[  492.855398][   T42] 
[  492.855471][   T42] =============================================
[  492.855471][   T42] 
[  502.161817][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  502.162299][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  502.162299][   T10]      dst_init+0x84/0x4a0
[  502.162299][   T10]      dst_alloc+0x97/0x150
[  502.162299][   T10]      ip6_dst_alloc+0x23/0x90
[  502.162299][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  502.162299][   T10]      ip6_pol_route+0x56f/0x840
[  502.162299][   T10]      fib6_rule_lookup+0x456/0x630
[  502.162299][   T10]      ip6_route_input+0x59c/0xa50
[  502.162299][   T10]      ipv6_rcv+0x397/0x810
[  502.162299][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  502.162299][   T10]      process_backlog+0x101/0x620
[  502.162299][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  502.162299][   T10]      net_rx_action+0x495/0xbe0
[  502.162299][   T10]      __do_softirq+0x1b5/0x7f6
[  502.162299][   T10] 
[  502.164298][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  502.164298][   T10]      netdev_get_by_index+0x5e/0x80
[  502.164298][   T10]      fib6_nh_init+0x3d8/0x1580
[  502.164298][   T10]      ip6_route_info_create+0xf18/0x17d0
[  502.164298][   T10]      ip6_route_add+0x1c/0x140
[  502.164298][   T10]      addrconf_prefix_route+0x2a6/0x430
[  502.164298][   T10]      inet6_addr_add+0x4f8/0xa40
[  502.164298][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  502.164298][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  502.164298][   T10]      netlink_rcv_skb+0x130/0x360
[  502.164298][   T10]      netlink_unicast+0x449/0x710
[  502.164298][   T10]      netlink_sendmsg+0x723/0xbe0
[  502.164298][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  502.164298][   T10]      ___sys_sendmsg+0xee/0x170
[  502.164298][   T10]      __sys_sendmsg+0xcd/0x170
[  502.164298][   T10]      do_syscall_64+0xc6/0x1e0
[  502.164298][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  502.164298][   T10] 
[  502.166709][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  502.166709][   T10]      netdev_get_by_index+0x5e/0x80
[  502.166709][   T10]      fib6_nh_init+0x3d8/0x1580
[  502.166709][   T10]      ip6_route_info_create+0xf18/0x17d0
[  502.166709][   T10]      addrconf_f6i_alloc+0x315/0x560
[  502.166709][   T10]      ipv6_add_addr+0x411/0x2000
[  502.166709][   T10]      inet6_addr_add+0x30e/0xa40
[  502.166709][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  502.166709][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  502.166709][   T10]      netlink_rcv_skb+0x130/0x360
[  502.166709][   T10]      netlink_unicast+0x449/0x710
[  502.166709][   T10]      netlink_sendmsg+0x723/0xbe0
[  502.166709][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  502.166709][   T10]      ___sys_sendmsg+0xee/0x170
[  502.166709][   T10]      __sys_sendmsg+0xcd/0x170
[  502.166709][   T10]      do_syscall_64+0xc6/0x1e0
[  502.166709][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  502.166709][   T10] 
[  502.169118][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  502.169118][   T10]      netdev_get_by_index+0x5e/0x80
[  502.169118][   T10]      fib6_nh_init+0x3d8/0x1580
[  502.169118][   T10]      ip6_route_info_create+0xf18/0x17d0
[  502.169118][   T10]      ip6_route_add+0x1c/0x140
[  502.169118][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  502.169118][   T10]      addrconf_add_dev+0xe2/0x170
[  502.169118][   T10]      inet6_addr_add+0x12f/0xa40
[  502.169118][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  502.169118][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  502.169118][   T10]      netlink_rcv_skb+0x130/0x360
[  502.169118][   T10]      netlink_unicast+0x449/0x710
[  502.169118][   T10]      netlink_sendmsg+0x723/0xbe0
[  502.169118][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  502.169118][   T10]      ___sys_sendmsg+0xee/0x170
[  502.169118][   T10]      __sys_sendmsg+0xcd/0x170
[  502.169118][   T10]      do_syscall_64+0xc6/0x1e0
[  502.169118][   T10] 
[  502.171482][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  502.171482][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  502.171482][   T10]      ipv6_find_idev+0x102/0x170
[  502.171482][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  502.171482][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  502.171482][   T10]      netlink_rcv_skb+0x130/0x360
[  502.171482][   T10]      netlink_unicast+0x449/0x710
[  502.171482][   T10]      netlink_sendmsg+0x723/0xbe0
[  502.171482][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  502.171482][   T10]      ___sys_sendmsg+0xee/0x170
[  502.171482][   T10]      __sys_sendmsg+0xcd/0x170
[  502.171482][   T10]      do_syscall_64+0xc6/0x1e0
[  502.171482][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  502.171482][   T10] 
[  502.173321][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  502.173321][   T10]      neigh_parms_alloc+0x1e5/0x510
[  502.173321][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  502.173321][   T10]      ipv6_find_idev+0x102/0x170
[  502.173321][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  502.173321][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  502.173321][   T10]      netlink_rcv_skb+0x130/0x360
[  502.173321][   T10]      netlink_unicast+0x449/0x710
[  502.173321][   T10]      netlink_sendmsg+0x723/0xbe0
[  502.173321][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  502.173321][   T10]      ___sys_sendmsg+0xee/0x170
[  502.173321][   T10]      __sys_sendmsg+0xcd/0x170
[  502.173321][   T10]      do_syscall_64+0xc6/0x1e0
[  502.173321][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  502.173321][   T10] 
[  502.175344][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  502.175625][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  502.175625][   T10]      dst_init+0x84/0x4a0
[  502.175625][   T10]      dst_alloc+0x97/0x150
[  502.175625][   T10]      ip6_dst_alloc+0x23/0x90
[  502.175625][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  502.175625][   T10]      ip6_pol_route+0x56f/0x840
[  502.175625][   T10]      fib6_rule_lookup+0x456/0x630
[  502.175625][   T10]      ip6_route_input+0x59c/0xa50
[  502.175625][   T10]      ipv6_rcv+0x397/0x810
[  502.175625][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  502.175625][   T10]      process_backlog+0x101/0x620
[  502.175625][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  502.175625][   T10]      net_rx_action+0x495/0xbe0
[  502.175625][   T10]      __do_softirq+0x1b5/0x7f6
[  502.175625][   T10] 
[  502.177579][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  502.177579][   T10]      netdev_get_by_index+0x5e/0x80
[  502.177579][   T10]      fib6_nh_init+0x3d8/0x1580
[  502.177579][   T10]      ip6_route_info_create+0xf18/0x17d0
[  502.177579][   T10]      ip6_route_add+0x1c/0x140
[  502.177579][   T10]      addrconf_prefix_route+0x2a6/0x430
[  502.177579][   T10]      inet6_addr_add+0x4f8/0xa40
[  502.177579][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  502.177579][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  502.177579][   T10]      netlink_rcv_skb+0x130/0x360
[  502.177579][   T10]      netlink_unicast+0x449/0x710
[  502.177579][   T10]      netlink_sendmsg+0x723/0xbe0
[  502.177579][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  502.177579][   T10]      ___sys_sendmsg+0xee/0x170
[  502.177579][   T10]      __sys_sendmsg+0xcd/0x170
[  502.177579][   T10]      do_syscall_64+0xc6/0x1e0
[  502.177579][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  502.177579][   T10] 
[  502.179956][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  502.179956][   T10]      netdev_get_by_index+0x5e/0x80
[  502.179956][   T10]      fib6_nh_init+0x3d8/0x1580
[  502.179956][   T10]      ip6_route_info_create+0xf18/0x17d0
[  502.179956][   T10]      addrconf_f6i_alloc+0x315/0x560
[  502.179956][   T10]      ipv6_add_addr+0x411/0x2000
[  502.179956][   T10]      inet6_addr_add+0x30e/0xa40
[  502.179956][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  502.179956][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  502.179956][   T10]      netlink_rcv_skb+0x130/0x360
[  502.179956][   T10]      netlink_unicast+0x449/0x710
[  502.179956][   T10]      netlink_sendmsg+0x723/0xbe0
[  502.179956][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  502.179956][   T10]      ___sys_sendmsg+0xee/0x170
[  502.179956][   T10]      __sys_sendmsg+0xcd/0x170
[  502.179956][   T10]      do_syscall_64+0xc6/0x1e0
[  502.179956][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  502.179956][   T10] 
[  502.182350][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  502.182350][   T10]      netdev_get_by_index+0x5e/0x80
[  502.182350][   T10]      fib6_nh_init+0x3d8/0x1580
[  502.182350][   T10]      ip6_route_info_create+0xf18/0x17d0
[  502.182350][   T10]      ip6_route_add+0x1c/0x140
[  502.182350][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  502.182350][   T10]      addrconf_add_dev+0xe2/0x170
[  502.182350][   T10]      inet6_addr_add+0x12f/0xa40
[  502.182350][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  502.182350][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  502.182350][   T10]      netlink_rcv_skb+0x130/0x360
[  502.182350][   T10]      netlink_unicast+0x449/0x710
[  502.182350][   T10]      netlink_sendmsg+0x723/0xbe0
[  502.182350][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  502.182350][   T10]      ___sys_sendmsg+0xee/0x170
[  502.182350][   T10]      __sys_sendmsg+0xcd/0x170
[  502.182350][   T10]      do_syscall_64+0xc6/0x1e0
[  502.182350][   T10] 
[  502.184722][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  502.184722][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  502.184722][   T10]      ipv6_find_idev+0x102/0x170
[  502.184722][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  502.184722][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  502.184722][   T10]      netlink_rcv_skb+0x130/0x360
[  502.184722][   T10]      netlink_unicast+0x449/0x710
[  502.184722][   T10]      netlink_sendmsg+0x723/0xbe0
[  502.184722][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  502.184722][   T10]      ___sys_sendmsg+0xee/0x170
[  502.184722][   T10]      __sys_sendmsg+0xcd/0x170
[  502.184722][   T10]      do_syscall_64+0xc6/0x1e0
[  502.184722][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  502.184722][   T10] 
[  502.186561][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  502.186561][   T10]      neigh_parms_alloc+0x1e5/0x510
[  502.186561][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  502.186561][   T10]      ipv6_find_idev+0x102/0x170
[  502.186561][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  502.186561][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  502.186561][   T10]      netlink_rcv_skb+0x130/0x360
[  502.186561][   T10]      netlink_unicast+0x449/0x710
[  502.186561][   T10]      netlink_sendmsg+0x723/0xbe0
[  502.186561][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  502.186561][   T10]      ___sys_sendmsg+0xee/0x170
[  502.186561][   T10]      __sys_sendmsg+0xcd/0x170
[  502.186561][   T10]      do_syscall_64+0xc6/0x1e0
[  502.186561][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  502.186561][   T10] 
[  512.441787][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  512.442334][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  512.442334][   T10]      dst_init+0x84/0x4a0
[  512.442334][   T10]      dst_alloc+0x97/0x150
[  512.442334][   T10]      ip6_dst_alloc+0x23/0x90
[  512.442334][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  512.442334][   T10]      ip6_pol_route+0x56f/0x840
[  512.442334][   T10]      fib6_rule_lookup+0x456/0x630
[  512.442334][   T10]      ip6_route_input+0x59c/0xa50
[  512.442334][   T10]      ipv6_rcv+0x397/0x810
[  512.442334][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  512.442334][   T10]      process_backlog+0x101/0x620
[  512.442334][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  512.442334][   T10]      net_rx_action+0x495/0xbe0
[  512.442334][   T10]      __do_softirq+0x1b5/0x7f6
[  512.442334][   T10] 
[  512.444400][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  512.444400][   T10]      netdev_get_by_index+0x5e/0x80
[  512.444400][   T10]      fib6_nh_init+0x3d8/0x1580
[  512.444400][   T10]      ip6_route_info_create+0xf18/0x17d0
[  512.444400][   T10]      ip6_route_add+0x1c/0x140
[  512.444400][   T10]      addrconf_prefix_route+0x2a6/0x430
[  512.444400][   T10]      inet6_addr_add+0x4f8/0xa40
[  512.444400][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  512.444400][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  512.444400][   T10]      netlink_rcv_skb+0x130/0x360
[  512.444400][   T10]      netlink_unicast+0x449/0x710
[  512.444400][   T10]      netlink_sendmsg+0x723/0xbe0
[  512.444400][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  512.444400][   T10]      ___sys_sendmsg+0xee/0x170
[  512.444400][   T10]      __sys_sendmsg+0xcd/0x170
[  512.444400][   T10]      do_syscall_64+0xc6/0x1e0
[  512.444400][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  512.444400][   T10] 
[  512.447652][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  512.447652][   T10]      netdev_get_by_index+0x5e/0x80
[  512.447652][   T10]      fib6_nh_init+0x3d8/0x1580
[  512.447652][   T10]      ip6_route_info_create+0xf18/0x17d0
[  512.447652][   T10]      addrconf_f6i_alloc+0x315/0x560
[  512.447652][   T10]      ipv6_add_addr+0x411/0x2000
[  512.447652][   T10]      inet6_addr_add+0x30e/0xa40
[  512.447652][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  512.447652][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  512.447652][   T10]      netlink_rcv_skb+0x130/0x360
[  512.447652][   T10]      netlink_unicast+0x449/0x710
[  512.447652][   T10]      netlink_sendmsg+0x723/0xbe0
[  512.447652][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  512.447652][   T10]      ___sys_sendmsg+0xee/0x170
[  512.447652][   T10]      __sys_sendmsg+0xcd/0x170
[  512.447652][   T10]      do_syscall_64+0xc6/0x1e0
[  512.447652][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  512.447652][   T10] 
[  512.450828][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  512.450828][   T10]      netdev_get_by_index+0x5e/0x80
[  512.450828][   T10]      fib6_nh_init+0x3d8/0x1580
[  512.450828][   T10]      ip6_route_info_create+0xf18/0x17d0
[  512.450828][   T10]      ip6_route_add+0x1c/0x140
[  512.450828][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  512.450828][   T10]      addrconf_add_dev+0xe2/0x170
[  512.450828][   T10]      inet6_addr_add+0x12f/0xa40
[  512.450828][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  512.450828][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  512.450828][   T10]      netlink_rcv_skb+0x130/0x360
[  512.450828][   T10]      netlink_unicast+0x449/0x710
[  512.450828][   T10]      netlink_sendmsg+0x723/0xbe0
[  512.450828][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  512.450828][   T10]      ___sys_sendmsg+0xee/0x170
[  512.450828][   T10]      __sys_sendmsg+0xcd/0x170
[  512.450828][   T10]      do_syscall_64+0xc6/0x1e0
[  512.450828][   T10] 
[  512.453950][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  512.453950][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  512.453950][   T10]      ipv6_find_idev+0x102/0x170
[  512.453950][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  512.453950][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  512.453950][   T10]      netlink_rcv_skb+0x130/0x360
[  512.453950][   T10]      netlink_unicast+0x449/0x710
[  512.453950][   T10]      netlink_sendmsg+0x723/0xbe0
[  512.453950][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  512.453950][   T10]      ___sys_sendmsg+0xee/0x170
[  512.453950][   T10]      __sys_sendmsg+0xcd/0x170
[  512.453950][   T10]      do_syscall_64+0xc6/0x1e0
[  512.453950][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  512.453950][   T10] 
[  512.455791][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  512.455791][   T10]      neigh_parms_alloc+0x1e5/0x510
[  512.455791][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  512.455791][   T10]      ipv6_find_idev+0x102/0x170
[  512.455791][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  512.455791][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  512.455791][   T10]      netlink_rcv_skb+0x130/0x360
[  512.455791][   T10]      netlink_unicast+0x449/0x710
[  512.455791][   T10]      netlink_sendmsg+0x723/0xbe0
[  512.455791][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  512.455791][   T10]      ___sys_sendmsg+0xee/0x170
[  512.455791][   T10]      __sys_sendmsg+0xcd/0x170
[  512.455791][   T10]      do_syscall_64+0xc6/0x1e0
[  512.455791][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  512.455791][   T10] 
[  512.457826][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  512.458103][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  512.458103][   T10]      dst_init+0x84/0x4a0
[  512.458103][   T10]      dst_alloc+0x97/0x150
[  512.458103][   T10]      ip6_dst_alloc+0x23/0x90
[  512.458103][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  512.458103][   T10]      ip6_pol_route+0x56f/0x840
[  512.458103][   T10]      fib6_rule_lookup+0x456/0x630
[  512.458103][   T10]      ip6_route_input+0x59c/0xa50
[  512.458103][   T10]      ipv6_rcv+0x397/0x810
[  512.458103][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  512.458103][   T10]      process_backlog+0x101/0x620
[  512.458103][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  512.458103][   T10]      net_rx_action+0x495/0xbe0
[  512.458103][   T10]      __do_softirq+0x1b5/0x7f6
[  512.458103][   T10] 
[  512.460064][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  512.460064][   T10]      netdev_get_by_index+0x5e/0x80
[  512.460064][   T10]      fib6_nh_init+0x3d8/0x1580
[  512.460064][   T10]      ip6_route_info_create+0xf18/0x17d0
[  512.460064][   T10]      ip6_route_add+0x1c/0x140
[  512.460064][   T10]      addrconf_prefix_route+0x2a6/0x430
[  512.460064][   T10]      inet6_addr_add+0x4f8/0xa40
[  512.460064][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  512.460064][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  512.460064][   T10]      netlink_rcv_skb+0x130/0x360
[  512.460064][   T10]      netlink_unicast+0x449/0x710
[  512.460064][   T10]      netlink_sendmsg+0x723/0xbe0
[  512.460064][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  512.460064][   T10]      ___sys_sendmsg+0xee/0x170
[  512.460064][   T10]      __sys_sendmsg+0xcd/0x170
[  512.460064][   T10]      do_syscall_64+0xc6/0x1e0
[  512.460064][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  512.460064][   T10] 
[  512.462455][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  512.462455][   T10]      netdev_get_by_index+0x5e/0x80
[  512.462455][   T10]      fib6_nh_init+0x3d8/0x1580
[  512.462455][   T10]      ip6_route_info_create+0xf18/0x17d0
[  512.462455][   T10]      addrconf_f6i_alloc+0x315/0x560
[  512.462455][   T10]      ipv6_add_addr+0x411/0x2000
[  512.462455][   T10]      inet6_addr_add+0x30e/0xa40
[  512.462455][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  512.462455][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  512.462455][   T10]      netlink_rcv_skb+0x130/0x360
[  512.462455][   T10]      netlink_unicast+0x449/0x710
[  512.462455][   T10]      netlink_sendmsg+0x723/0xbe0
[  512.462455][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  512.462455][   T10]      ___sys_sendmsg+0xee/0x170
[  512.462455][   T10]      __sys_sendmsg+0xcd/0x170
[  512.462455][   T10]      do_syscall_64+0xc6/0x1e0
[  512.462455][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  512.462455][   T10] 
[  512.464845][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  512.464845][   T10]      netdev_get_by_index+0x5e/0x80
[  512.464845][   T10]      fib6_nh_init+0x3d8/0x1580
[  512.464845][   T10]      ip6_route_info_create+0xf18/0x17d0
[  512.464845][   T10]      ip6_route_add+0x1c/0x140
[  512.464845][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  512.464845][   T10]      addrconf_add_dev+0xe2/0x170
[  512.464845][   T10]      inet6_addr_add+0x12f/0xa40
[  512.464845][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  512.464845][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  512.464845][   T10]      netlink_rcv_skb+0x130/0x360
[  512.464845][   T10]      netlink_unicast+0x449/0x710
[  512.464845][   T10]      netlink_sendmsg+0x723/0xbe0
[  512.464845][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  512.464845][   T10]      ___sys_sendmsg+0xee/0x170
[  512.464845][   T10]      __sys_sendmsg+0xcd/0x170
[  512.464845][   T10]      do_syscall_64+0xc6/0x1e0
[  512.464845][   T10] 
[  512.467204][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  512.467204][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  512.467204][   T10]      ipv6_find_idev+0x102/0x170
[  512.467204][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  512.467204][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  512.467204][   T10]      netlink_rcv_skb+0x130/0x360
[  512.467204][   T10]      netlink_unicast+0x449/0x710
[  512.467204][   T10]      netlink_sendmsg+0x723/0xbe0
[  512.467204][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  512.467204][   T10]      ___sys_sendmsg+0xee/0x170
[  512.467204][   T10]      __sys_sendmsg+0xcd/0x170
[  512.467204][   T10]      do_syscall_64+0xc6/0x1e0
[  512.467204][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  512.467204][   T10] 
[  512.469045][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  512.469045][   T10]      neigh_parms_alloc+0x1e5/0x510
[  512.469045][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  512.469045][   T10]      ipv6_find_idev+0x102/0x170
[  512.469045][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  512.469045][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  512.469045][   T10]      netlink_rcv_skb+0x130/0x360
[  512.469045][   T10]      netlink_unicast+0x449/0x710
[  512.469045][   T10]      netlink_sendmsg+0x723/0xbe0
[  512.469045][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  512.469045][   T10]      ___sys_sendmsg+0xee/0x170
[  512.469045][   T10]      __sys_sendmsg+0xcd/0x170
[  512.469045][   T10]      do_syscall_64+0xc6/0x1e0
[  512.469045][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  512.469045][   T10] 
[  522.721826][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  522.722327][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  522.722327][   T10]      dst_init+0x84/0x4a0
[  522.722327][   T10]      dst_alloc+0x97/0x150
[  522.722327][   T10]      ip6_dst_alloc+0x23/0x90
[  522.722327][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  522.722327][   T10]      ip6_pol_route+0x56f/0x840
[  522.722327][   T10]      fib6_rule_lookup+0x456/0x630
[  522.722327][   T10]      ip6_route_input+0x59c/0xa50
[  522.722327][   T10]      ipv6_rcv+0x397/0x810
[  522.722327][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  522.722327][   T10]      process_backlog+0x101/0x620
[  522.722327][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  522.722327][   T10]      net_rx_action+0x495/0xbe0
[  522.722327][   T10]      __do_softirq+0x1b5/0x7f6
[  522.722327][   T10] 
[  522.724328][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  522.724328][   T10]      netdev_get_by_index+0x5e/0x80
[  522.724328][   T10]      fib6_nh_init+0x3d8/0x1580
[  522.724328][   T10]      ip6_route_info_create+0xf18/0x17d0
[  522.724328][   T10]      ip6_route_add+0x1c/0x140
[  522.724328][   T10]      addrconf_prefix_route+0x2a6/0x430
[  522.724328][   T10]      inet6_addr_add+0x4f8/0xa40
[  522.724328][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  522.724328][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  522.724328][   T10]      netlink_rcv_skb+0x130/0x360
[  522.724328][   T10]      netlink_unicast+0x449/0x710
[  522.724328][   T10]      netlink_sendmsg+0x723/0xbe0
[  522.724328][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  522.724328][   T10]      ___sys_sendmsg+0xee/0x170
[  522.724328][   T10]      __sys_sendmsg+0xcd/0x170
[  522.724328][   T10]      do_syscall_64+0xc6/0x1e0
[  522.724328][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  522.724328][   T10] 
[  522.726734][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  522.726734][   T10]      netdev_get_by_index+0x5e/0x80
[  522.726734][   T10]      fib6_nh_init+0x3d8/0x1580
[  522.726734][   T10]      ip6_route_info_create+0xf18/0x17d0
[  522.726734][   T10]      addrconf_f6i_alloc+0x315/0x560
[  522.726734][   T10]      ipv6_add_addr+0x411/0x2000
[  522.726734][   T10]      inet6_addr_add+0x30e/0xa40
[  522.726734][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  522.726734][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  522.726734][   T10]      netlink_rcv_skb+0x130/0x360
[  522.726734][   T10]      netlink_unicast+0x449/0x710
[  522.726734][   T10]      netlink_sendmsg+0x723/0xbe0
[  522.726734][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  522.726734][   T10]      ___sys_sendmsg+0xee/0x170
[  522.726734][   T10]      __sys_sendmsg+0xcd/0x170
[  522.726734][   T10]      do_syscall_64+0xc6/0x1e0
[  522.726734][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  522.726734][   T10] 
[  522.729139][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  522.729139][   T10]      netdev_get_by_index+0x5e/0x80
[  522.729139][   T10]      fib6_nh_init+0x3d8/0x1580
[  522.729139][   T10]      ip6_route_info_create+0xf18/0x17d0
[  522.729139][   T10]      ip6_route_add+0x1c/0x140
[  522.729139][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  522.729139][   T10]      addrconf_add_dev+0xe2/0x170
[  522.729139][   T10]      inet6_addr_add+0x12f/0xa40
[  522.729139][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  522.729139][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  522.729139][   T10]      netlink_rcv_skb+0x130/0x360
[  522.729139][   T10]      netlink_unicast+0x449/0x710
[  522.729139][   T10]      netlink_sendmsg+0x723/0xbe0
[  522.729139][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  522.729139][   T10]      ___sys_sendmsg+0xee/0x170
[  522.729139][   T10]      __sys_sendmsg+0xcd/0x170
[  522.729139][   T10]      do_syscall_64+0xc6/0x1e0
[  522.729139][   T10] 
[  522.731504][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  522.731504][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  522.731504][   T10]      ipv6_find_idev+0x102/0x170
[  522.731504][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  522.731504][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  522.731504][   T10]      netlink_rcv_skb+0x130/0x360
[  522.731504][   T10]      netlink_unicast+0x449/0x710
[  522.731504][   T10]      netlink_sendmsg+0x723/0xbe0
[  522.731504][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  522.731504][   T10]      ___sys_sendmsg+0xee/0x170
[  522.731504][   T10]      __sys_sendmsg+0xcd/0x170
[  522.731504][   T10]      do_syscall_64+0xc6/0x1e0
[  522.731504][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  522.731504][   T10] 
[  522.733371][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  522.733371][   T10]      neigh_parms_alloc+0x1e5/0x510
[  522.733371][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  522.733371][   T10]      ipv6_find_idev+0x102/0x170
[  522.733371][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  522.733371][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  522.733371][   T10]      netlink_rcv_skb+0x130/0x360
[  522.733371][   T10]      netlink_unicast+0x449/0x710
[  522.733371][   T10]      netlink_sendmsg+0x723/0xbe0
[  522.733371][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  522.733371][   T10]      ___sys_sendmsg+0xee/0x170
[  522.733371][   T10]      __sys_sendmsg+0xcd/0x170
[  522.733371][   T10]      do_syscall_64+0xc6/0x1e0
[  522.733371][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  522.733371][   T10] 
[  522.736008][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  522.736394][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  522.736394][   T10]      dst_init+0x84/0x4a0
[  522.736394][   T10]      dst_alloc+0x97/0x150
[  522.736394][   T10]      ip6_dst_alloc+0x23/0x90
[  522.736394][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  522.736394][   T10]      ip6_pol_route+0x56f/0x840
[  522.736394][   T10]      fib6_rule_lookup+0x456/0x630
[  522.736394][   T10]      ip6_route_input+0x59c/0xa50
[  522.736394][   T10]      ipv6_rcv+0x397/0x810
[  522.736394][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  522.736394][   T10]      process_backlog+0x101/0x620
[  522.736394][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  522.736394][   T10]      net_rx_action+0x495/0xbe0
[  522.736394][   T10]      __do_softirq+0x1b5/0x7f6
[  522.736394][   T10] 
[  522.739055][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  522.739055][   T10]      netdev_get_by_index+0x5e/0x80
[  522.739055][   T10]      fib6_nh_init+0x3d8/0x1580
[  522.739055][   T10]      ip6_route_info_create+0xf18/0x17d0
[  522.739055][   T10]      ip6_route_add+0x1c/0x140
[  522.739055][   T10]      addrconf_prefix_route+0x2a6/0x430
[  522.739055][   T10]      inet6_addr_add+0x4f8/0xa40
[  522.739055][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  522.739055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  522.739055][   T10]      netlink_rcv_skb+0x130/0x360
[  522.739055][   T10]      netlink_unicast+0x449/0x710
[  522.739055][   T10]      netlink_sendmsg+0x723/0xbe0
[  522.739055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  522.739055][   T10]      ___sys_sendmsg+0xee/0x170
[  522.739055][   T10]      __sys_sendmsg+0xcd/0x170
[  522.739055][   T10]      do_syscall_64+0xc6/0x1e0
[  522.739055][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  522.739055][   T10] 
[  522.742327][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  522.742327][   T10]      netdev_get_by_index+0x5e/0x80
[  522.742327][   T10]      fib6_nh_init+0x3d8/0x1580
[  522.742327][   T10]      ip6_route_info_create+0xf18/0x17d0
[  522.742327][   T10]      addrconf_f6i_alloc+0x315/0x560
[  522.742327][   T10]      ipv6_add_addr+0x411/0x2000
[  522.742327][   T10]      inet6_addr_add+0x30e/0xa40
[  522.742327][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  522.742327][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  522.742327][   T10]      netlink_rcv_skb+0x130/0x360
[  522.742327][   T10]      netlink_unicast+0x449/0x710
[  522.742327][   T10]      netlink_sendmsg+0x723/0xbe0
[  522.742327][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  522.742327][   T10]      ___sys_sendmsg+0xee/0x170
[  522.742327][   T10]      __sys_sendmsg+0xcd/0x170
[  522.742327][   T10]      do_syscall_64+0xc6/0x1e0
[  522.742327][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  522.742327][   T10] 
[  522.745598][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  522.745598][   T10]      netdev_get_by_index+0x5e/0x80
[  522.745598][   T10]      fib6_nh_init+0x3d8/0x1580
[  522.745598][   T10]      ip6_route_info_create+0xf18/0x17d0
[  522.745598][   T10]      ip6_route_add+0x1c/0x140
[  522.745598][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  522.745598][   T10]      addrconf_add_dev+0xe2/0x170
[  522.745598][   T10]      inet6_addr_add+0x12f/0xa40
[  522.745598][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  522.745598][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  522.745598][   T10]      netlink_rcv_skb+0x130/0x360
[  522.745598][   T10]      netlink_unicast+0x449/0x710
[  522.745598][   T10]      netlink_sendmsg+0x723/0xbe0
[  522.745598][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  522.745598][   T10]      ___sys_sendmsg+0xee/0x170
[  522.745598][   T10]      __sys_sendmsg+0xcd/0x170
[  522.745598][   T10]      do_syscall_64+0xc6/0x1e0
[  522.745598][   T10] 
[  522.748827][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  522.748827][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  522.748827][   T10]      ipv6_find_idev+0x102/0x170
[  522.748827][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  522.748827][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  522.748827][   T10]      netlink_rcv_skb+0x130/0x360
[  522.748827][   T10]      netlink_unicast+0x449/0x710
[  522.748827][   T10]      netlink_sendmsg+0x723/0xbe0
[  522.748827][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  522.748827][   T10]      ___sys_sendmsg+0xee/0x170
[  522.748827][   T10]      __sys_sendmsg+0xcd/0x170
[  522.748827][   T10]      do_syscall_64+0xc6/0x1e0
[  522.748827][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  522.748827][   T10] 
[  522.751369][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  522.751369][   T10]      neigh_parms_alloc+0x1e5/0x510
[  522.751369][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  522.751369][   T10]      ipv6_find_idev+0x102/0x170
[  522.751369][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  522.751369][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  522.751369][   T10]      netlink_rcv_skb+0x130/0x360
[  522.751369][   T10]      netlink_unicast+0x449/0x710
[  522.751369][   T10]      netlink_sendmsg+0x723/0xbe0
[  522.751369][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  522.751369][   T10]      ___sys_sendmsg+0xee/0x170
[  522.751369][   T10]      __sys_sendmsg+0xcd/0x170
[  522.751369][   T10]      do_syscall_64+0xc6/0x1e0
[  522.751369][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  522.751369][   T10] 
[  533.009803][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  533.010278][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  533.010278][   T10]      dst_init+0x84/0x4a0
[  533.010278][   T10]      dst_alloc+0x97/0x150
[  533.010278][   T10]      ip6_dst_alloc+0x23/0x90
[  533.010278][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  533.010278][   T10]      ip6_pol_route+0x56f/0x840
[  533.010278][   T10]      fib6_rule_lookup+0x456/0x630
[  533.010278][   T10]      ip6_route_input+0x59c/0xa50
[  533.010278][   T10]      ipv6_rcv+0x397/0x810
[  533.010278][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  533.010278][   T10]      process_backlog+0x101/0x620
[  533.010278][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  533.010278][   T10]      net_rx_action+0x495/0xbe0
[  533.010278][   T10]      __do_softirq+0x1b5/0x7f6
[  533.010278][   T10] 
[  533.012268][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  533.012268][   T10]      netdev_get_by_index+0x5e/0x80
[  533.012268][   T10]      fib6_nh_init+0x3d8/0x1580
[  533.012268][   T10]      ip6_route_info_create+0xf18/0x17d0
[  533.012268][   T10]      ip6_route_add+0x1c/0x140
[  533.012268][   T10]      addrconf_prefix_route+0x2a6/0x430
[  533.012268][   T10]      inet6_addr_add+0x4f8/0xa40
[  533.012268][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  533.012268][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  533.012268][   T10]      netlink_rcv_skb+0x130/0x360
[  533.012268][   T10]      netlink_unicast+0x449/0x710
[  533.012268][   T10]      netlink_sendmsg+0x723/0xbe0
[  533.012268][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  533.012268][   T10]      ___sys_sendmsg+0xee/0x170
[  533.012268][   T10]      __sys_sendmsg+0xcd/0x170
[  533.012268][   T10]      do_syscall_64+0xc6/0x1e0
[  533.012268][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  533.012268][   T10] 
[  533.015208][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  533.015208][   T10]      netdev_get_by_index+0x5e/0x80
[  533.015208][   T10]      fib6_nh_init+0x3d8/0x1580
[  533.015208][   T10]      ip6_route_info_create+0xf18/0x17d0
[  533.015208][   T10]      addrconf_f6i_alloc+0x315/0x560
[  533.015208][   T10]      ipv6_add_addr+0x411/0x2000
[  533.015208][   T10]      inet6_addr_add+0x30e/0xa40
[  533.015208][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  533.015208][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  533.015208][   T10]      netlink_rcv_skb+0x130/0x360
[  533.015208][   T10]      netlink_unicast+0x449/0x710
[  533.015208][   T10]      netlink_sendmsg+0x723/0xbe0
[  533.015208][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  533.015208][   T10]      ___sys_sendmsg+0xee/0x170
[  533.015208][   T10]      __sys_sendmsg+0xcd/0x170
[  533.015208][   T10]      do_syscall_64+0xc6/0x1e0
[  533.015208][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  533.015208][   T10] 
[  533.018567][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  533.018567][   T10]      netdev_get_by_index+0x5e/0x80
[  533.018567][   T10]      fib6_nh_init+0x3d8/0x1580
[  533.018567][   T10]      ip6_route_info_create+0xf18/0x17d0
[  533.018567][   T10]      ip6_route_add+0x1c/0x140
[  533.018567][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  533.018567][   T10]      addrconf_add_dev+0xe2/0x170
[  533.018567][   T10]      inet6_addr_add+0x12f/0xa40
[  533.018567][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  533.018567][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  533.018567][   T10]      netlink_rcv_skb+0x130/0x360
[  533.018567][   T10]      netlink_unicast+0x449/0x710
[  533.018567][   T10]      netlink_sendmsg+0x723/0xbe0
[  533.018567][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  533.018567][   T10]      ___sys_sendmsg+0xee/0x170
[  533.018567][   T10]      __sys_sendmsg+0xcd/0x170
[  533.018567][   T10]      do_syscall_64+0xc6/0x1e0
[  533.018567][   T10] 
[  533.021826][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  533.021826][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  533.021826][   T10]      ipv6_find_idev+0x102/0x170
[  533.021826][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  533.021826][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  533.021826][   T10]      netlink_rcv_skb+0x130/0x360
[  533.021826][   T10]      netlink_unicast+0x449/0x710
[  533.021826][   T10]      netlink_sendmsg+0x723/0xbe0
[  533.021826][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  533.021826][   T10]      ___sys_sendmsg+0xee/0x170
[  533.021826][   T10]      __sys_sendmsg+0xcd/0x170
[  533.021826][   T10]      do_syscall_64+0xc6/0x1e0
[  533.021826][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  533.021826][   T10] 
[  533.024380][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  533.024380][   T10]      neigh_parms_alloc+0x1e5/0x510
[  533.024380][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  533.024380][   T10]      ipv6_find_idev+0x102/0x170
[  533.024380][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  533.024380][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  533.024380][   T10]      netlink_rcv_skb+0x130/0x360
[  533.024380][   T10]      netlink_unicast+0x449/0x710
[  533.024380][   T10]      netlink_sendmsg+0x723/0xbe0
[  533.024380][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  533.024380][   T10]      ___sys_sendmsg+0xee/0x170
[  533.024380][   T10]      __sys_sendmsg+0xcd/0x170
[  533.024380][   T10]      do_syscall_64+0xc6/0x1e0
[  533.024380][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  533.024380][   T10] 
[  533.027183][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  533.027470][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  533.027470][   T10]      dst_init+0x84/0x4a0
[  533.027470][   T10]      dst_alloc+0x97/0x150
[  533.027470][   T10]      ip6_dst_alloc+0x23/0x90
[  533.027470][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  533.027470][   T10]      ip6_pol_route+0x56f/0x840
[  533.027470][   T10]      fib6_rule_lookup+0x456/0x630
[  533.027470][   T10]      ip6_route_input+0x59c/0xa50
[  533.027470][   T10]      ipv6_rcv+0x397/0x810
[  533.027470][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  533.027470][   T10]      process_backlog+0x101/0x620
[  533.027470][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  533.027470][   T10]      net_rx_action+0x495/0xbe0
[  533.027470][   T10]      __do_softirq+0x1b5/0x7f6
[  533.027470][   T10] 
[  533.029436][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  533.029436][   T10]      netdev_get_by_index+0x5e/0x80
[  533.029436][   T10]      fib6_nh_init+0x3d8/0x1580
[  533.029436][   T10]      ip6_route_info_create+0xf18/0x17d0
[  533.029436][   T10]      ip6_route_add+0x1c/0x140
[  533.029436][   T10]      addrconf_prefix_route+0x2a6/0x430
[  533.029436][   T10]      inet6_addr_add+0x4f8/0xa40
[  533.029436][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  533.029436][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  533.029436][   T10]      netlink_rcv_skb+0x130/0x360
[  533.029436][   T10]      netlink_unicast+0x449/0x710
[  533.029436][   T10]      netlink_sendmsg+0x723/0xbe0
[  533.029436][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  533.029436][   T10]      ___sys_sendmsg+0xee/0x170
[  533.029436][   T10]      __sys_sendmsg+0xcd/0x170
[  533.029436][   T10]      do_syscall_64+0xc6/0x1e0
[  533.029436][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  533.029436][   T10] 
[  533.031831][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  533.031831][   T10]      netdev_get_by_index+0x5e/0x80
[  533.031831][   T10]      fib6_nh_init+0x3d8/0x1580
[  533.031831][   T10]      ip6_route_info_create+0xf18/0x17d0
[  533.031831][   T10]      addrconf_f6i_alloc+0x315/0x560
[  533.031831][   T10]      ipv6_add_addr+0x411/0x2000
[  533.031831][   T10]      inet6_addr_add+0x30e/0xa40
[  533.031831][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  533.031831][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  533.031831][   T10]      netlink_rcv_skb+0x130/0x360
[  533.031831][   T10]      netlink_unicast+0x449/0x710
[  533.031831][   T10]      netlink_sendmsg+0x723/0xbe0
[  533.031831][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  533.031831][   T10]      ___sys_sendmsg+0xee/0x170
[  533.031831][   T10]      __sys_sendmsg+0xcd/0x170
[  533.031831][   T10]      do_syscall_64+0xc6/0x1e0
[  533.031831][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  533.031831][   T10] 
[  533.034224][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  533.034224][   T10]      netdev_get_by_index+0x5e/0x80
[  533.034224][   T10]      fib6_nh_init+0x3d8/0x1580
[  533.034224][   T10]      ip6_route_info_create+0xf18/0x17d0
[  533.034224][   T10]      ip6_route_add+0x1c/0x140
[  533.034224][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  533.034224][   T10]      addrconf_add_dev+0xe2/0x170
[  533.034224][   T10]      inet6_addr_add+0x12f/0xa40
[  533.034224][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  533.034224][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  533.034224][   T10]      netlink_rcv_skb+0x130/0x360
[  533.034224][   T10]      netlink_unicast+0x449/0x710
[  533.034224][   T10]      netlink_sendmsg+0x723/0xbe0
[  533.034224][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  533.034224][   T10]      ___sys_sendmsg+0xee/0x170
[  533.034224][   T10]      __sys_sendmsg+0xcd/0x170
[  533.034224][   T10]      do_syscall_64+0xc6/0x1e0
[  533.034224][   T10] 
[  533.036588][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  533.036588][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  533.036588][   T10]      ipv6_find_idev+0x102/0x170
[  533.036588][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  533.036588][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  533.036588][   T10]      netlink_rcv_skb+0x130/0x360
[  533.036588][   T10]      netlink_unicast+0x449/0x710
[  533.036588][   T10]      netlink_sendmsg+0x723/0xbe0
[  533.036588][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  533.036588][   T10]      ___sys_sendmsg+0xee/0x170
[  533.036588][   T10]      __sys_sendmsg+0xcd/0x170
[  533.036588][   T10]      do_syscall_64+0xc6/0x1e0
[  533.036588][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  533.036588][   T10] 
[  533.038410][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  533.038410][   T10]      neigh_parms_alloc+0x1e5/0x510
[  533.038410][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  533.038410][   T10]      ipv6_find_idev+0x102/0x170
[  533.038410][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  533.038410][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  533.038410][   T10]      netlink_rcv_skb+0x130/0x360
[  533.038410][   T10]      netlink_unicast+0x449/0x710
[  533.038410][   T10]      netlink_sendmsg+0x723/0xbe0
[  533.038410][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  533.038410][   T10]      ___sys_sendmsg+0xee/0x170
[  533.038410][   T10]      __sys_sendmsg+0xcd/0x170
[  533.038410][   T10]      do_syscall_64+0xc6/0x1e0
[  533.038410][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  533.038410][   T10] 
[  543.289824][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  543.290254][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  543.290254][   T10]      dst_init+0x84/0x4a0
[  543.290254][   T10]      dst_alloc+0x97/0x150
[  543.290254][   T10]      ip6_dst_alloc+0x23/0x90
[  543.290254][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  543.290254][   T10]      ip6_pol_route+0x56f/0x840
[  543.290254][   T10]      fib6_rule_lookup+0x456/0x630
[  543.290254][   T10]      ip6_route_input+0x59c/0xa50
[  543.290254][   T10]      ipv6_rcv+0x397/0x810
[  543.290254][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  543.290254][   T10]      process_backlog+0x101/0x620
[  543.290254][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  543.290254][   T10]      net_rx_action+0x495/0xbe0
[  543.290254][   T10]      __do_softirq+0x1b5/0x7f6
[  543.290254][   T10] 
[  543.292228][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  543.292228][   T10]      netdev_get_by_index+0x5e/0x80
[  543.292228][   T10]      fib6_nh_init+0x3d8/0x1580
[  543.292228][   T10]      ip6_route_info_create+0xf18/0x17d0
[  543.292228][   T10]      ip6_route_add+0x1c/0x140
[  543.292228][   T10]      addrconf_prefix_route+0x2a6/0x430
[  543.292228][   T10]      inet6_addr_add+0x4f8/0xa40
[  543.292228][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  543.292228][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  543.292228][   T10]      netlink_rcv_skb+0x130/0x360
[  543.292228][   T10]      netlink_unicast+0x449/0x710
[  543.292228][   T10]      netlink_sendmsg+0x723/0xbe0
[  543.292228][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  543.292228][   T10]      ___sys_sendmsg+0xee/0x170
[  543.292228][   T10]      __sys_sendmsg+0xcd/0x170
[  543.292228][   T10]      do_syscall_64+0xc6/0x1e0
[  543.292228][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  543.292228][   T10] 
[  543.294625][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  543.294625][   T10]      netdev_get_by_index+0x5e/0x80
[  543.294625][   T10]      fib6_nh_init+0x3d8/0x1580
[  543.294625][   T10]      ip6_route_info_create+0xf18/0x17d0
[  543.294625][   T10]      addrconf_f6i_alloc+0x315/0x560
[  543.294625][   T10]      ipv6_add_addr+0x411/0x2000
[  543.294625][   T10]      inet6_addr_add+0x30e/0xa40
[  543.294625][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  543.294625][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  543.294625][   T10]      netlink_rcv_skb+0x130/0x360
[  543.294625][   T10]      netlink_unicast+0x449/0x710
[  543.294625][   T10]      netlink_sendmsg+0x723/0xbe0
[  543.294625][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  543.294625][   T10]      ___sys_sendmsg+0xee/0x170
[  543.294625][   T10]      __sys_sendmsg+0xcd/0x170
[  543.294625][   T10]      do_syscall_64+0xc6/0x1e0
[  543.294625][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  543.294625][   T10] 
[  543.297023][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  543.297023][   T10]      netdev_get_by_index+0x5e/0x80
[  543.297023][   T10]      fib6_nh_init+0x3d8/0x1580
[  543.297023][   T10]      ip6_route_info_create+0xf18/0x17d0
[  543.297023][   T10]      ip6_route_add+0x1c/0x140
[  543.297023][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  543.297023][   T10]      addrconf_add_dev+0xe2/0x170
[  543.297023][   T10]      inet6_addr_add+0x12f/0xa40
[  543.297023][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  543.297023][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  543.297023][   T10]      netlink_rcv_skb+0x130/0x360
[  543.297023][   T10]      netlink_unicast+0x449/0x710
[  543.297023][   T10]      netlink_sendmsg+0x723/0xbe0
[  543.297023][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  543.297023][   T10]      ___sys_sendmsg+0xee/0x170
[  543.297023][   T10]      __sys_sendmsg+0xcd/0x170
[  543.297023][   T10]      do_syscall_64+0xc6/0x1e0
[  543.297023][   T10] 
[  543.299369][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  543.299369][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  543.299369][   T10]      ipv6_find_idev+0x102/0x170
[  543.299369][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  543.299369][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  543.299369][   T10]      netlink_rcv_skb+0x130/0x360
[  543.299369][   T10]      netlink_unicast+0x449/0x710
[  543.299369][   T10]      netlink_sendmsg+0x723/0xbe0
[  543.299369][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  543.299369][   T10]      ___sys_sendmsg+0xee/0x170
[  543.299369][   T10]      __sys_sendmsg+0xcd/0x170
[  543.299369][   T10]      do_syscall_64+0xc6/0x1e0
[  543.299369][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  543.299369][   T10] 
[  543.301244][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  543.301244][   T10]      neigh_parms_alloc+0x1e5/0x510
[  543.301244][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  543.301244][   T10]      ipv6_find_idev+0x102/0x170
[  543.301244][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  543.301244][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  543.301244][   T10]      netlink_rcv_skb+0x130/0x360
[  543.301244][   T10]      netlink_unicast+0x449/0x710
[  543.301244][   T10]      netlink_sendmsg+0x723/0xbe0
[  543.301244][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  543.301244][   T10]      ___sys_sendmsg+0xee/0x170
[  543.301244][   T10]      __sys_sendmsg+0xcd/0x170
[  543.301244][   T10]      do_syscall_64+0xc6/0x1e0
[  543.301244][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  543.301244][   T10] 
[  543.303289][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  543.303568][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  543.303568][   T10]      dst_init+0x84/0x4a0
[  543.303568][   T10]      dst_alloc+0x97/0x150
[  543.303568][   T10]      ip6_dst_alloc+0x23/0x90
[  543.303568][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  543.303568][   T10]      ip6_pol_route+0x56f/0x840
[  543.303568][   T10]      fib6_rule_lookup+0x456/0x630
[  543.303568][   T10]      ip6_route_input+0x59c/0xa50
[  543.303568][   T10]      ipv6_rcv+0x397/0x810
[  543.303568][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  543.303568][   T10]      process_backlog+0x101/0x620
[  543.303568][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  543.303568][   T10]      net_rx_action+0x495/0xbe0
[  543.303568][   T10]      __do_softirq+0x1b5/0x7f6
[  543.303568][   T10] 
[  543.305526][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  543.305526][   T10]      netdev_get_by_index+0x5e/0x80
[  543.305526][   T10]      fib6_nh_init+0x3d8/0x1580
[  543.305526][   T10]      ip6_route_info_create+0xf18/0x17d0
[  543.305526][   T10]      ip6_route_add+0x1c/0x140
[  543.305526][   T10]      addrconf_prefix_route+0x2a6/0x430
[  543.305526][   T10]      inet6_addr_add+0x4f8/0xa40
[  543.305526][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  543.305526][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  543.305526][   T10]      netlink_rcv_skb+0x130/0x360
[  543.305526][   T10]      netlink_unicast+0x449/0x710
[  543.305526][   T10]      netlink_sendmsg+0x723/0xbe0
[  543.305526][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  543.305526][   T10]      ___sys_sendmsg+0xee/0x170
[  543.305526][   T10]      __sys_sendmsg+0xcd/0x170
[  543.305526][   T10]      do_syscall_64+0xc6/0x1e0
[  543.305526][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  543.305526][   T10] 
[  543.307913][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  543.307913][   T10]      netdev_get_by_index+0x5e/0x80
[  543.307913][   T10]      fib6_nh_init+0x3d8/0x1580
[  543.307913][   T10]      ip6_route_info_create+0xf18/0x17d0
[  543.307913][   T10]      addrconf_f6i_alloc+0x315/0x560
[  543.307913][   T10]      ipv6_add_addr+0x411/0x2000
[  543.307913][   T10]      inet6_addr_add+0x30e/0xa40
[  543.307913][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  543.307913][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  543.307913][   T10]      netlink_rcv_skb+0x130/0x360
[  543.307913][   T10]      netlink_unicast+0x449/0x710
[  543.307913][   T10]      netlink_sendmsg+0x723/0xbe0
[  543.307913][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  543.307913][   T10]      ___sys_sendmsg+0xee/0x170
[  543.307913][   T10]      __sys_sendmsg+0xcd/0x170
[  543.307913][   T10]      do_syscall_64+0xc6/0x1e0
[  543.307913][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  543.307913][   T10] 
[  543.310313][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  543.310313][   T10]      netdev_get_by_index+0x5e/0x80
[  543.310313][   T10]      fib6_nh_init+0x3d8/0x1580
[  543.310313][   T10]      ip6_route_info_create+0xf18/0x17d0
[  543.310313][   T10]      ip6_route_add+0x1c/0x140
[  543.310313][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  543.310313][   T10]      addrconf_add_dev+0xe2/0x170
[  543.310313][   T10]      inet6_addr_add+0x12f/0xa40
[  543.310313][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  543.310313][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  543.310313][   T10]      netlink_rcv_skb+0x130/0x360
[  543.310313][   T10]      netlink_unicast+0x449/0x710
[  543.310313][   T10]      netlink_sendmsg+0x723/0xbe0
[  543.310313][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  543.310313][   T10]      ___sys_sendmsg+0xee/0x170
[  543.310313][   T10]      __sys_sendmsg+0xcd/0x170
[  543.310313][   T10]      do_syscall_64+0xc6/0x1e0
[  543.310313][   T10] 
[  543.312667][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  543.312667][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  543.312667][   T10]      ipv6_find_idev+0x102/0x170
[  543.312667][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  543.312667][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  543.312667][   T10]      netlink_rcv_skb+0x130/0x360
[  543.312667][   T10]      netlink_unicast+0x449/0x710
[  543.312667][   T10]      netlink_sendmsg+0x723/0xbe0
[  543.312667][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  543.312667][   T10]      ___sys_sendmsg+0xee/0x170
[  543.312667][   T10]      __sys_sendmsg+0xcd/0x170
[  543.312667][   T10]      do_syscall_64+0xc6/0x1e0
[  543.312667][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  543.312667][   T10] 
[  543.314515][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  543.314515][   T10]      neigh_parms_alloc+0x1e5/0x510
[  543.314515][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  543.314515][   T10]      ipv6_find_idev+0x102/0x170
[  543.314515][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  543.314515][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  543.314515][   T10]      netlink_rcv_skb+0x130/0x360
[  543.314515][   T10]      netlink_unicast+0x449/0x710
[  543.314515][   T10]      netlink_sendmsg+0x723/0xbe0
[  543.314515][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  543.314515][   T10]      ___sys_sendmsg+0xee/0x170
[  543.314515][   T10]      __sys_sendmsg+0xcd/0x170
[  543.314515][   T10]      do_syscall_64+0xc6/0x1e0
[  543.314515][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  543.314515][   T10] 
[  553.569813][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  553.570282][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  553.570282][   T10]      dst_init+0x84/0x4a0
[  553.570282][   T10]      dst_alloc+0x97/0x150
[  553.570282][   T10]      ip6_dst_alloc+0x23/0x90
[  553.570282][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  553.570282][   T10]      ip6_pol_route+0x56f/0x840
[  553.570282][   T10]      fib6_rule_lookup+0x456/0x630
[  553.570282][   T10]      ip6_route_input+0x59c/0xa50
[  553.570282][   T10]      ipv6_rcv+0x397/0x810
[  553.570282][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  553.570282][   T10]      process_backlog+0x101/0x620
[  553.570282][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  553.570282][   T10]      net_rx_action+0x495/0xbe0
[  553.570282][   T10]      __do_softirq+0x1b5/0x7f6
[  553.570282][   T10] 
[  553.572270][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  553.572270][   T10]      netdev_get_by_index+0x5e/0x80
[  553.572270][   T10]      fib6_nh_init+0x3d8/0x1580
[  553.572270][   T10]      ip6_route_info_create+0xf18/0x17d0
[  553.572270][   T10]      ip6_route_add+0x1c/0x140
[  553.572270][   T10]      addrconf_prefix_route+0x2a6/0x430
[  553.572270][   T10]      inet6_addr_add+0x4f8/0xa40
[  553.572270][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  553.572270][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  553.572270][   T10]      netlink_rcv_skb+0x130/0x360
[  553.572270][   T10]      netlink_unicast+0x449/0x710
[  553.572270][   T10]      netlink_sendmsg+0x723/0xbe0
[  553.572270][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  553.572270][   T10]      ___sys_sendmsg+0xee/0x170
[  553.572270][   T10]      __sys_sendmsg+0xcd/0x170
[  553.572270][   T10]      do_syscall_64+0xc6/0x1e0
[  553.572270][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  553.572270][   T10] 
[  553.574668][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  553.574668][   T10]      netdev_get_by_index+0x5e/0x80
[  553.574668][   T10]      fib6_nh_init+0x3d8/0x1580
[  553.574668][   T10]      ip6_route_info_create+0xf18/0x17d0
[  553.574668][   T10]      addrconf_f6i_alloc+0x315/0x560
[  553.574668][   T10]      ipv6_add_addr+0x411/0x2000
[  553.574668][   T10]      inet6_addr_add+0x30e/0xa40
[  553.574668][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  553.574668][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  553.574668][   T10]      netlink_rcv_skb+0x130/0x360
[  553.574668][   T10]      netlink_unicast+0x449/0x710
[  553.574668][   T10]      netlink_sendmsg+0x723/0xbe0
[  553.574668][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  553.574668][   T10]      ___sys_sendmsg+0xee/0x170
[  553.574668][   T10]      __sys_sendmsg+0xcd/0x170
[  553.574668][   T10]      do_syscall_64+0xc6/0x1e0
[  553.574668][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  553.574668][   T10] 
[  553.577055][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  553.577055][   T10]      netdev_get_by_index+0x5e/0x80
[  553.577055][   T10]      fib6_nh_init+0x3d8/0x1580
[  553.577055][   T10]      ip6_route_info_create+0xf18/0x17d0
[  553.577055][   T10]      ip6_route_add+0x1c/0x140
[  553.577055][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  553.577055][   T10]      addrconf_add_dev+0xe2/0x170
[  553.577055][   T10]      inet6_addr_add+0x12f/0xa40
[  553.577055][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  553.577055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  553.577055][   T10]      netlink_rcv_skb+0x130/0x360
[  553.577055][   T10]      netlink_unicast+0x449/0x710
[  553.577055][   T10]      netlink_sendmsg+0x723/0xbe0
[  553.577055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  553.577055][   T10]      ___sys_sendmsg+0xee/0x170
[  553.577055][   T10]      __sys_sendmsg+0xcd/0x170
[  553.577055][   T10]      do_syscall_64+0xc6/0x1e0
[  553.577055][   T10] 
[  553.580164][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  553.580164][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  553.580164][   T10]      ipv6_find_idev+0x102/0x170
[  553.580164][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  553.580164][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  553.580164][   T10]      netlink_rcv_skb+0x130/0x360
[  553.580164][   T10]      netlink_unicast+0x449/0x710
[  553.580164][   T10]      netlink_sendmsg+0x723/0xbe0
[  553.580164][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  553.580164][   T10]      ___sys_sendmsg+0xee/0x170
[  553.580164][   T10]      __sys_sendmsg+0xcd/0x170
[  553.580164][   T10]      do_syscall_64+0xc6/0x1e0
[  553.580164][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  553.580164][   T10] 
[  553.582782][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  553.582782][   T10]      neigh_parms_alloc+0x1e5/0x510
[  553.582782][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  553.582782][   T10]      ipv6_find_idev+0x102/0x170
[  553.582782][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  553.582782][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  553.582782][   T10]      netlink_rcv_skb+0x130/0x360
[  553.582782][   T10]      netlink_unicast+0x449/0x710
[  553.582782][   T10]      netlink_sendmsg+0x723/0xbe0
[  553.582782][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  553.582782][   T10]      ___sys_sendmsg+0xee/0x170
[  553.582782][   T10]      __sys_sendmsg+0xcd/0x170
[  553.582782][   T10]      do_syscall_64+0xc6/0x1e0
[  553.582782][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  553.582782][   T10] 
[  553.585642][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  553.585945][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  553.585945][   T10]      dst_init+0x84/0x4a0
[  553.585945][   T10]      dst_alloc+0x97/0x150
[  553.585945][   T10]      ip6_dst_alloc+0x23/0x90
[  553.585945][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  553.585945][   T10]      ip6_pol_route+0x56f/0x840
[  553.585945][   T10]      fib6_rule_lookup+0x456/0x630
[  553.585945][   T10]      ip6_route_input+0x59c/0xa50
[  553.585945][   T10]      ipv6_rcv+0x397/0x810
[  553.585945][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  553.585945][   T10]      process_backlog+0x101/0x620
[  553.585945][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  553.585945][   T10]      net_rx_action+0x495/0xbe0
[  553.585945][   T10]      __do_softirq+0x1b5/0x7f6
[  553.585945][   T10] 
[  553.587901][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  553.587901][   T10]      netdev_get_by_index+0x5e/0x80
[  553.587901][   T10]      fib6_nh_init+0x3d8/0x1580
[  553.587901][   T10]      ip6_route_info_create+0xf18/0x17d0
[  553.587901][   T10]      ip6_route_add+0x1c/0x140
[  553.587901][   T10]      addrconf_prefix_route+0x2a6/0x430
[  553.587901][   T10]      inet6_addr_add+0x4f8/0xa40
[  553.587901][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  553.587901][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  553.587901][   T10]      netlink_rcv_skb+0x130/0x360
[  553.587901][   T10]      netlink_unicast+0x449/0x710
[  553.587901][   T10]      netlink_sendmsg+0x723/0xbe0
[  553.587901][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  553.587901][   T10]      ___sys_sendmsg+0xee/0x170
[  553.587901][   T10]      __sys_sendmsg+0xcd/0x170
[  553.587901][   T10]      do_syscall_64+0xc6/0x1e0
[  553.587901][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  553.587901][   T10] 
[  553.590300][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  553.590300][   T10]      netdev_get_by_index+0x5e/0x80
[  553.590300][   T10]      fib6_nh_init+0x3d8/0x1580
[  553.590300][   T10]      ip6_route_info_create+0xf18/0x17d0
[  553.590300][   T10]      addrconf_f6i_alloc+0x315/0x560
[  553.590300][   T10]      ipv6_add_addr+0x411/0x2000
[  553.590300][   T10]      inet6_addr_add+0x30e/0xa40
[  553.590300][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  553.590300][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  553.590300][   T10]      netlink_rcv_skb+0x130/0x360
[  553.590300][   T10]      netlink_unicast+0x449/0x710
[  553.590300][   T10]      netlink_sendmsg+0x723/0xbe0
[  553.590300][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  553.590300][   T10]      ___sys_sendmsg+0xee/0x170
[  553.590300][   T10]      __sys_sendmsg+0xcd/0x170
[  553.590300][   T10]      do_syscall_64+0xc6/0x1e0
[  553.590300][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  553.590300][   T10] 
[  553.592713][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  553.592713][   T10]      netdev_get_by_index+0x5e/0x80
[  553.592713][   T10]      fib6_nh_init+0x3d8/0x1580
[  553.592713][   T10]      ip6_route_info_create+0xf18/0x17d0
[  553.592713][   T10]      ip6_route_add+0x1c/0x140
[  553.592713][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  553.592713][   T10]      addrconf_add_dev+0xe2/0x170
[  553.592713][   T10]      inet6_addr_add+0x12f/0xa40
[  553.592713][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  553.592713][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  553.592713][   T10]      netlink_rcv_skb+0x130/0x360
[  553.592713][   T10]      netlink_unicast+0x449/0x710
[  553.592713][   T10]      netlink_sendmsg+0x723/0xbe0
[  553.592713][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  553.592713][   T10]      ___sys_sendmsg+0xee/0x170
[  553.592713][   T10]      __sys_sendmsg+0xcd/0x170
[  553.592713][   T10]      do_syscall_64+0xc6/0x1e0
[  553.592713][   T10] 
[  553.595071][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  553.595071][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  553.595071][   T10]      ipv6_find_idev+0x102/0x170
[  553.595071][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  553.595071][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  553.595071][   T10]      netlink_rcv_skb+0x130/0x360
[  553.595071][   T10]      netlink_unicast+0x449/0x710
[  553.595071][   T10]      netlink_sendmsg+0x723/0xbe0
[  553.595071][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  553.595071][   T10]      ___sys_sendmsg+0xee/0x170
[  553.595071][   T10]      __sys_sendmsg+0xcd/0x170
[  553.595071][   T10]      do_syscall_64+0xc6/0x1e0
[  553.595071][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  553.595071][   T10] 
[  553.596895][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  553.596895][   T10]      neigh_parms_alloc+0x1e5/0x510
[  553.596895][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  553.596895][   T10]      ipv6_find_idev+0x102/0x170
[  553.596895][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  553.596895][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  553.596895][   T10]      netlink_rcv_skb+0x130/0x360
[  553.596895][   T10]      netlink_unicast+0x449/0x710
[  553.596895][   T10]      netlink_sendmsg+0x723/0xbe0
[  553.596895][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  553.596895][   T10]      ___sys_sendmsg+0xee/0x170
[  553.596895][   T10]      __sys_sendmsg+0xcd/0x170
[  553.596895][   T10]      do_syscall_64+0xc6/0x1e0
[  553.596895][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  553.596895][   T10] 
[  563.849733][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  563.850210][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  563.850210][   T10]      dst_init+0x84/0x4a0
[  563.850210][   T10]      dst_alloc+0x97/0x150
[  563.850210][   T10]      ip6_dst_alloc+0x23/0x90
[  563.850210][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  563.850210][   T10]      ip6_pol_route+0x56f/0x840
[  563.850210][   T10]      fib6_rule_lookup+0x456/0x630
[  563.850210][   T10]      ip6_route_input+0x59c/0xa50
[  563.850210][   T10]      ipv6_rcv+0x397/0x810
[  563.850210][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  563.850210][   T10]      process_backlog+0x101/0x620
[  563.850210][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  563.850210][   T10]      net_rx_action+0x495/0xbe0
[  563.850210][   T10]      __do_softirq+0x1b5/0x7f6
[  563.850210][   T10] 
[  563.852162][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  563.852162][   T10]      netdev_get_by_index+0x5e/0x80
[  563.852162][   T10]      fib6_nh_init+0x3d8/0x1580
[  563.852162][   T10]      ip6_route_info_create+0xf18/0x17d0
[  563.852162][   T10]      ip6_route_add+0x1c/0x140
[  563.852162][   T10]      addrconf_prefix_route+0x2a6/0x430
[  563.852162][   T10]      inet6_addr_add+0x4f8/0xa40
[  563.852162][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  563.852162][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  563.852162][   T10]      netlink_rcv_skb+0x130/0x360
[  563.852162][   T10]      netlink_unicast+0x449/0x710
[  563.852162][   T10]      netlink_sendmsg+0x723/0xbe0
[  563.852162][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  563.852162][   T10]      ___sys_sendmsg+0xee/0x170
[  563.852162][   T10]      __sys_sendmsg+0xcd/0x170
[  563.852162][   T10]      do_syscall_64+0xc6/0x1e0
[  563.852162][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  563.852162][   T10] 
[  563.854920][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  563.854920][   T10]      netdev_get_by_index+0x5e/0x80
[  563.854920][   T10]      fib6_nh_init+0x3d8/0x1580
[  563.854920][   T10]      ip6_route_info_create+0xf18/0x17d0
[  563.854920][   T10]      addrconf_f6i_alloc+0x315/0x560
[  563.854920][   T10]      ipv6_add_addr+0x411/0x2000
[  563.854920][   T10]      inet6_addr_add+0x30e/0xa40
[  563.854920][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  563.854920][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  563.854920][   T10]      netlink_rcv_skb+0x130/0x360
[  563.854920][   T10]      netlink_unicast+0x449/0x710
[  563.854920][   T10]      netlink_sendmsg+0x723/0xbe0
[  563.854920][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  563.854920][   T10]      ___sys_sendmsg+0xee/0x170
[  563.854920][   T10]      __sys_sendmsg+0xcd/0x170
[  563.854920][   T10]      do_syscall_64+0xc6/0x1e0
[  563.854920][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  563.854920][   T10] 
[  563.857265][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  563.857265][   T10]      netdev_get_by_index+0x5e/0x80
[  563.857265][   T10]      fib6_nh_init+0x3d8/0x1580
[  563.857265][   T10]      ip6_route_info_create+0xf18/0x17d0
[  563.857265][   T10]      ip6_route_add+0x1c/0x140
[  563.857265][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  563.857265][   T10]      addrconf_add_dev+0xe2/0x170
[  563.857265][   T10]      inet6_addr_add+0x12f/0xa40
[  563.857265][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  563.857265][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  563.857265][   T10]      netlink_rcv_skb+0x130/0x360
[  563.857265][   T10]      netlink_unicast+0x449/0x710
[  563.857265][   T10]      netlink_sendmsg+0x723/0xbe0
[  563.857265][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  563.857265][   T10]      ___sys_sendmsg+0xee/0x170
[  563.857265][   T10]      __sys_sendmsg+0xcd/0x170
[  563.857265][   T10]      do_syscall_64+0xc6/0x1e0
[  563.857265][   T10] 
[  563.859589][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  563.859589][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  563.859589][   T10]      ipv6_find_idev+0x102/0x170
[  563.859589][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  563.859589][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  563.859589][   T10]      netlink_rcv_skb+0x130/0x360
[  563.859589][   T10]      netlink_unicast+0x449/0x710
[  563.859589][   T10]      netlink_sendmsg+0x723/0xbe0
[  563.859589][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  563.859589][   T10]      ___sys_sendmsg+0xee/0x170
[  563.859589][   T10]      __sys_sendmsg+0xcd/0x170
[  563.859589][   T10]      do_syscall_64+0xc6/0x1e0
[  563.859589][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  563.859589][   T10] 
[  563.861376][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  563.861376][   T10]      neigh_parms_alloc+0x1e5/0x510
[  563.861376][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  563.861376][   T10]      ipv6_find_idev+0x102/0x170
[  563.861376][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  563.861376][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  563.861376][   T10]      netlink_rcv_skb+0x130/0x360
[  563.861376][   T10]      netlink_unicast+0x449/0x710
[  563.861376][   T10]      netlink_sendmsg+0x723/0xbe0
[  563.861376][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  563.861376][   T10]      ___sys_sendmsg+0xee/0x170
[  563.861376][   T10]      __sys_sendmsg+0xcd/0x170
[  563.861376][   T10]      do_syscall_64+0xc6/0x1e0
[  563.861376][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  563.861376][   T10] 
[  563.863346][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  563.863629][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  563.863629][   T10]      dst_init+0x84/0x4a0
[  563.863629][   T10]      dst_alloc+0x97/0x150
[  563.863629][   T10]      ip6_dst_alloc+0x23/0x90
[  563.863629][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  563.863629][   T10]      ip6_pol_route+0x56f/0x840
[  563.863629][   T10]      fib6_rule_lookup+0x456/0x630
[  563.863629][   T10]      ip6_route_input+0x59c/0xa50
[  563.863629][   T10]      ipv6_rcv+0x397/0x810
[  563.863629][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  563.863629][   T10]      process_backlog+0x101/0x620
[  563.863629][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  563.863629][   T10]      net_rx_action+0x495/0xbe0
[  563.863629][   T10]      __do_softirq+0x1b5/0x7f6
[  563.863629][   T10] 
[  563.865546][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  563.865546][   T10]      netdev_get_by_index+0x5e/0x80
[  563.865546][   T10]      fib6_nh_init+0x3d8/0x1580
[  563.865546][   T10]      ip6_route_info_create+0xf18/0x17d0
[  563.865546][   T10]      ip6_route_add+0x1c/0x140
[  563.865546][   T10]      addrconf_prefix_route+0x2a6/0x430
[  563.865546][   T10]      inet6_addr_add+0x4f8/0xa40
[  563.865546][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  563.865546][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  563.865546][   T10]      netlink_rcv_skb+0x130/0x360
[  563.865546][   T10]      netlink_unicast+0x449/0x710
[  563.865546][   T10]      netlink_sendmsg+0x723/0xbe0
[  563.865546][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  563.865546][   T10]      ___sys_sendmsg+0xee/0x170
[  563.865546][   T10]      __sys_sendmsg+0xcd/0x170
[  563.865546][   T10]      do_syscall_64+0xc6/0x1e0
[  563.865546][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  563.865546][   T10] 
[  563.867880][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  563.867880][   T10]      netdev_get_by_index+0x5e/0x80
[  563.867880][   T10]      fib6_nh_init+0x3d8/0x1580
[  563.867880][   T10]      ip6_route_info_create+0xf18/0x17d0
[  563.867880][   T10]      addrconf_f6i_alloc+0x315/0x560
[  563.867880][   T10]      ipv6_add_addr+0x411/0x2000
[  563.867880][   T10]      inet6_addr_add+0x30e/0xa40
[  563.867880][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  563.867880][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  563.867880][   T10]      netlink_rcv_skb+0x130/0x360
[  563.867880][   T10]      netlink_unicast+0x449/0x710
[  563.867880][   T10]      netlink_sendmsg+0x723/0xbe0
[  563.867880][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  563.867880][   T10]      ___sys_sendmsg+0xee/0x170
[  563.867880][   T10]      __sys_sendmsg+0xcd/0x170
[  563.867880][   T10]      do_syscall_64+0xc6/0x1e0
[  563.867880][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  563.867880][   T10] 
[  563.870225][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  563.870225][   T10]      netdev_get_by_index+0x5e/0x80
[  563.870225][   T10]      fib6_nh_init+0x3d8/0x1580
[  563.870225][   T10]      ip6_route_info_create+0xf18/0x17d0
[  563.870225][   T10]      ip6_route_add+0x1c/0x140
[  563.870225][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  563.870225][   T10]      addrconf_add_dev+0xe2/0x170
[  563.870225][   T10]      inet6_addr_add+0x12f/0xa40
[  563.870225][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  563.870225][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  563.870225][   T10]      netlink_rcv_skb+0x130/0x360
[  563.870225][   T10]      netlink_unicast+0x449/0x710
[  563.870225][   T10]      netlink_sendmsg+0x723/0xbe0
[  563.870225][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  563.870225][   T10]      ___sys_sendmsg+0xee/0x170
[  563.870225][   T10]      __sys_sendmsg+0xcd/0x170
[  563.870225][   T10]      do_syscall_64+0xc6/0x1e0
[  563.870225][   T10] 
[  563.872886][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  563.872886][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  563.872886][   T10]      ipv6_find_idev+0x102/0x170
[  563.872886][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  563.872886][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  563.872886][   T10]      netlink_rcv_skb+0x130/0x360
[  563.872886][   T10]      netlink_unicast+0x449/0x710
[  563.872886][   T10]      netlink_sendmsg+0x723/0xbe0
[  563.872886][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  563.872886][   T10]      ___sys_sendmsg+0xee/0x170
[  563.872886][   T10]      __sys_sendmsg+0xcd/0x170
[  563.872886][   T10]      do_syscall_64+0xc6/0x1e0
[  563.872886][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  563.872886][   T10] 
[  563.875201][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  563.875201][   T10]      neigh_parms_alloc+0x1e5/0x510
[  563.875201][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  563.875201][   T10]      ipv6_find_idev+0x102/0x170
[  563.875201][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  563.875201][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  563.875201][   T10]      netlink_rcv_skb+0x130/0x360
[  563.875201][   T10]      netlink_unicast+0x449/0x710
[  563.875201][   T10]      netlink_sendmsg+0x723/0xbe0
[  563.875201][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  563.875201][   T10]      ___sys_sendmsg+0xee/0x170
[  563.875201][   T10]      __sys_sendmsg+0xcd/0x170
[  563.875201][   T10]      do_syscall_64+0xc6/0x1e0
[  563.875201][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  563.875201][   T10] 
[  574.121789][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  574.122260][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  574.122260][   T10]      dst_init+0x84/0x4a0
[  574.122260][   T10]      dst_alloc+0x97/0x150
[  574.122260][   T10]      ip6_dst_alloc+0x23/0x90
[  574.122260][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  574.122260][   T10]      ip6_pol_route+0x56f/0x840
[  574.122260][   T10]      fib6_rule_lookup+0x456/0x630
[  574.122260][   T10]      ip6_route_input+0x59c/0xa50
[  574.122260][   T10]      ipv6_rcv+0x397/0x810
[  574.122260][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  574.122260][   T10]      process_backlog+0x101/0x620
[  574.122260][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  574.122260][   T10]      net_rx_action+0x495/0xbe0
[  574.122260][   T10]      __do_softirq+0x1b5/0x7f6
[  574.122260][   T10] 
[  574.124256][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  574.124256][   T10]      netdev_get_by_index+0x5e/0x80
[  574.124256][   T10]      fib6_nh_init+0x3d8/0x1580
[  574.124256][   T10]      ip6_route_info_create+0xf18/0x17d0
[  574.124256][   T10]      ip6_route_add+0x1c/0x140
[  574.124256][   T10]      addrconf_prefix_route+0x2a6/0x430
[  574.124256][   T10]      inet6_addr_add+0x4f8/0xa40
[  574.124256][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  574.124256][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  574.124256][   T10]      netlink_rcv_skb+0x130/0x360
[  574.124256][   T10]      netlink_unicast+0x449/0x710
[  574.124256][   T10]      netlink_sendmsg+0x723/0xbe0
[  574.124256][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  574.124256][   T10]      ___sys_sendmsg+0xee/0x170
[  574.124256][   T10]      __sys_sendmsg+0xcd/0x170
[  574.124256][   T10]      do_syscall_64+0xc6/0x1e0
[  574.124256][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  574.124256][   T10] 
[  574.126665][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  574.126665][   T10]      netdev_get_by_index+0x5e/0x80
[  574.126665][   T10]      fib6_nh_init+0x3d8/0x1580
[  574.126665][   T10]      ip6_route_info_create+0xf18/0x17d0
[  574.126665][   T10]      addrconf_f6i_alloc+0x315/0x560
[  574.126665][   T10]      ipv6_add_addr+0x411/0x2000
[  574.126665][   T10]      inet6_addr_add+0x30e/0xa40
[  574.126665][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  574.126665][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  574.126665][   T10]      netlink_rcv_skb+0x130/0x360
[  574.126665][   T10]      netlink_unicast+0x449/0x710
[  574.126665][   T10]      netlink_sendmsg+0x723/0xbe0
[  574.126665][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  574.126665][   T10]      ___sys_sendmsg+0xee/0x170
[  574.126665][   T10]      __sys_sendmsg+0xcd/0x170
[  574.126665][   T10]      do_syscall_64+0xc6/0x1e0
[  574.126665][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  574.126665][   T10] 
[  574.129062][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  574.129062][   T10]      netdev_get_by_index+0x5e/0x80
[  574.129062][   T10]      fib6_nh_init+0x3d8/0x1580
[  574.129062][   T10]      ip6_route_info_create+0xf18/0x17d0
[  574.129062][   T10]      ip6_route_add+0x1c/0x140
[  574.129062][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  574.129062][   T10]      addrconf_add_dev+0xe2/0x170
[  574.129062][   T10]      inet6_addr_add+0x12f/0xa40
[  574.129062][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  574.129062][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  574.129062][   T10]      netlink_rcv_skb+0x130/0x360
[  574.129062][   T10]      netlink_unicast+0x449/0x710
[  574.129062][   T10]      netlink_sendmsg+0x723/0xbe0
[  574.129062][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  574.129062][   T10]      ___sys_sendmsg+0xee/0x170
[  574.129062][   T10]      __sys_sendmsg+0xcd/0x170
[  574.129062][   T10]      do_syscall_64+0xc6/0x1e0
[  574.129062][   T10] 
[  574.131426][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  574.131426][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  574.131426][   T10]      ipv6_find_idev+0x102/0x170
[  574.131426][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  574.131426][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  574.131426][   T10]      netlink_rcv_skb+0x130/0x360
[  574.131426][   T10]      netlink_unicast+0x449/0x710
[  574.131426][   T10]      netlink_sendmsg+0x723/0xbe0
[  574.131426][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  574.131426][   T10]      ___sys_sendmsg+0xee/0x170
[  574.131426][   T10]      __sys_sendmsg+0xcd/0x170
[  574.131426][   T10]      do_syscall_64+0xc6/0x1e0
[  574.131426][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  574.131426][   T10] 
[  574.133285][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  574.133285][   T10]      neigh_parms_alloc+0x1e5/0x510
[  574.133285][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  574.133285][   T10]      ipv6_find_idev+0x102/0x170
[  574.133285][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  574.133285][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  574.133285][   T10]      netlink_rcv_skb+0x130/0x360
[  574.133285][   T10]      netlink_unicast+0x449/0x710
[  574.133285][   T10]      netlink_sendmsg+0x723/0xbe0
[  574.133285][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  574.133285][   T10]      ___sys_sendmsg+0xee/0x170
[  574.133285][   T10]      __sys_sendmsg+0xcd/0x170
[  574.133285][   T10]      do_syscall_64+0xc6/0x1e0
[  574.133285][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  574.133285][   T10] 
[  574.135867][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  574.136173][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  574.136173][   T10]      dst_init+0x84/0x4a0
[  574.136173][   T10]      dst_alloc+0x97/0x150
[  574.136173][   T10]      ip6_dst_alloc+0x23/0x90
[  574.136173][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  574.136173][   T10]      ip6_pol_route+0x56f/0x840
[  574.136173][   T10]      fib6_rule_lookup+0x456/0x630
[  574.136173][   T10]      ip6_route_input+0x59c/0xa50
[  574.136173][   T10]      ipv6_rcv+0x397/0x810
[  574.136173][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  574.136173][   T10]      process_backlog+0x101/0x620
[  574.136173][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  574.136173][   T10]      net_rx_action+0x495/0xbe0
[  574.136173][   T10]      __do_softirq+0x1b5/0x7f6
[  574.136173][   T10] 
[  574.138130][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  574.138130][   T10]      netdev_get_by_index+0x5e/0x80
[  574.138130][   T10]      fib6_nh_init+0x3d8/0x1580
[  574.138130][   T10]      ip6_route_info_create+0xf18/0x17d0
[  574.138130][   T10]      ip6_route_add+0x1c/0x140
[  574.138130][   T10]      addrconf_prefix_route+0x2a6/0x430
[  574.138130][   T10]      inet6_addr_add+0x4f8/0xa40
[  574.138130][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  574.138130][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  574.138130][   T10]      netlink_rcv_skb+0x130/0x360
[  574.138130][   T10]      netlink_unicast+0x449/0x710
[  574.138130][   T10]      netlink_sendmsg+0x723/0xbe0
[  574.138130][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  574.138130][   T10]      ___sys_sendmsg+0xee/0x170
[  574.138130][   T10]      __sys_sendmsg+0xcd/0x170
[  574.138130][   T10]      do_syscall_64+0xc6/0x1e0
[  574.138130][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  574.138130][   T10] 
[  574.140538][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  574.140538][   T10]      netdev_get_by_index+0x5e/0x80
[  574.140538][   T10]      fib6_nh_init+0x3d8/0x1580
[  574.140538][   T10]      ip6_route_info_create+0xf18/0x17d0
[  574.140538][   T10]      addrconf_f6i_alloc+0x315/0x560
[  574.140538][   T10]      ipv6_add_addr+0x411/0x2000
[  574.140538][   T10]      inet6_addr_add+0x30e/0xa40
[  574.140538][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  574.140538][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  574.140538][   T10]      netlink_rcv_skb+0x130/0x360
[  574.140538][   T10]      netlink_unicast+0x449/0x710
[  574.140538][   T10]      netlink_sendmsg+0x723/0xbe0
[  574.140538][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  574.140538][   T10]      ___sys_sendmsg+0xee/0x170
[  574.140538][   T10]      __sys_sendmsg+0xcd/0x170
[  574.140538][   T10]      do_syscall_64+0xc6/0x1e0
[  574.140538][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  574.140538][   T10] 
[  574.142940][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  574.142940][   T10]      netdev_get_by_index+0x5e/0x80
[  574.142940][   T10]      fib6_nh_init+0x3d8/0x1580
[  574.142940][   T10]      ip6_route_info_create+0xf18/0x17d0
[  574.142940][   T10]      ip6_route_add+0x1c/0x140
[  574.142940][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  574.142940][   T10]      addrconf_add_dev+0xe2/0x170
[  574.142940][   T10]      inet6_addr_add+0x12f/0xa40
[  574.142940][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  574.142940][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  574.142940][   T10]      netlink_rcv_skb+0x130/0x360
[  574.142940][   T10]      netlink_unicast+0x449/0x710
[  574.142940][   T10]      netlink_sendmsg+0x723/0xbe0
[  574.142940][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  574.142940][   T10]      ___sys_sendmsg+0xee/0x170
[  574.142940][   T10]      __sys_sendmsg+0xcd/0x170
[  574.142940][   T10]      do_syscall_64+0xc6/0x1e0
[  574.142940][   T10] 
[  574.145295][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  574.145295][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  574.145295][   T10]      ipv6_find_idev+0x102/0x170
[  574.145295][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  574.145295][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  574.145295][   T10]      netlink_rcv_skb+0x130/0x360
[  574.145295][   T10]      netlink_unicast+0x449/0x710
[  574.145295][   T10]      netlink_sendmsg+0x723/0xbe0
[  574.145295][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  574.145295][   T10]      ___sys_sendmsg+0xee/0x170
[  574.145295][   T10]      __sys_sendmsg+0xcd/0x170
[  574.145295][   T10]      do_syscall_64+0xc6/0x1e0
[  574.145295][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  574.145295][   T10] 
[  574.147129][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  574.147129][   T10]      neigh_parms_alloc+0x1e5/0x510
[  574.147129][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  574.147129][   T10]      ipv6_find_idev+0x102/0x170
[  574.147129][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  574.147129][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  574.147129][   T10]      netlink_rcv_skb+0x130/0x360
[  574.147129][   T10]      netlink_unicast+0x449/0x710
[  574.147129][   T10]      netlink_sendmsg+0x723/0xbe0
[  574.147129][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  574.147129][   T10]      ___sys_sendmsg+0xee/0x170
[  574.147129][   T10]      __sys_sendmsg+0xcd/0x170
[  574.147129][   T10]      do_syscall_64+0xc6/0x1e0
[  574.147129][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  574.147129][   T10] 
[  584.401719][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  584.402195][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  584.402195][   T10]      dst_init+0x84/0x4a0
[  584.402195][   T10]      dst_alloc+0x97/0x150
[  584.402195][   T10]      ip6_dst_alloc+0x23/0x90
[  584.402195][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  584.402195][   T10]      ip6_pol_route+0x56f/0x840
[  584.402195][   T10]      fib6_rule_lookup+0x456/0x630
[  584.402195][   T10]      ip6_route_input+0x59c/0xa50
[  584.402195][   T10]      ipv6_rcv+0x397/0x810
[  584.402195][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  584.402195][   T10]      process_backlog+0x101/0x620
[  584.402195][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  584.402195][   T10]      net_rx_action+0x495/0xbe0
[  584.402195][   T10]      __do_softirq+0x1b5/0x7f6
[  584.402195][   T10] 
[  584.404133][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  584.404133][   T10]      netdev_get_by_index+0x5e/0x80
[  584.404133][   T10]      fib6_nh_init+0x3d8/0x1580
[  584.404133][   T10]      ip6_route_info_create+0xf18/0x17d0
[  584.404133][   T10]      ip6_route_add+0x1c/0x140
[  584.404133][   T10]      addrconf_prefix_route+0x2a6/0x430
[  584.404133][   T10]      inet6_addr_add+0x4f8/0xa40
[  584.404133][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  584.404133][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  584.404133][   T10]      netlink_rcv_skb+0x130/0x360
[  584.404133][   T10]      netlink_unicast+0x449/0x710
[  584.404133][   T10]      netlink_sendmsg+0x723/0xbe0
[  584.404133][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  584.404133][   T10]      ___sys_sendmsg+0xee/0x170
[  584.404133][   T10]      __sys_sendmsg+0xcd/0x170
[  584.404133][   T10]      do_syscall_64+0xc6/0x1e0
[  584.404133][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  584.404133][   T10] 
[  584.406472][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  584.406472][   T10]      netdev_get_by_index+0x5e/0x80
[  584.406472][   T10]      fib6_nh_init+0x3d8/0x1580
[  584.406472][   T10]      ip6_route_info_create+0xf18/0x17d0
[  584.406472][   T10]      addrconf_f6i_alloc+0x315/0x560
[  584.406472][   T10]      ipv6_add_addr+0x411/0x2000
[  584.406472][   T10]      inet6_addr_add+0x30e/0xa40
[  584.406472][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  584.406472][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  584.406472][   T10]      netlink_rcv_skb+0x130/0x360
[  584.406472][   T10]      netlink_unicast+0x449/0x710
[  584.406472][   T10]      netlink_sendmsg+0x723/0xbe0
[  584.406472][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  584.406472][   T10]      ___sys_sendmsg+0xee/0x170
[  584.406472][   T10]      __sys_sendmsg+0xcd/0x170
[  584.406472][   T10]      do_syscall_64+0xc6/0x1e0
[  584.406472][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  584.406472][   T10] 
[  584.408800][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  584.408800][   T10]      netdev_get_by_index+0x5e/0x80
[  584.408800][   T10]      fib6_nh_init+0x3d8/0x1580
[  584.408800][   T10]      ip6_route_info_create+0xf18/0x17d0
[  584.408800][   T10]      ip6_route_add+0x1c/0x140
[  584.408800][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  584.408800][   T10]      addrconf_add_dev+0xe2/0x170
[  584.408800][   T10]      inet6_addr_add+0x12f/0xa40
[  584.408800][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  584.408800][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  584.408800][   T10]      netlink_rcv_skb+0x130/0x360
[  584.408800][   T10]      netlink_unicast+0x449/0x710
[  584.408800][   T10]      netlink_sendmsg+0x723/0xbe0
[  584.408800][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  584.408800][   T10]      ___sys_sendmsg+0xee/0x170
[  584.408800][   T10]      __sys_sendmsg+0xcd/0x170
[  584.408800][   T10]      do_syscall_64+0xc6/0x1e0
[  584.408800][   T10] 
[  584.411098][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  584.411098][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  584.411098][   T10]      ipv6_find_idev+0x102/0x170
[  584.411098][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  584.411098][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  584.411098][   T10]      netlink_rcv_skb+0x130/0x360
[  584.411098][   T10]      netlink_unicast+0x449/0x710
[  584.411098][   T10]      netlink_sendmsg+0x723/0xbe0
[  584.411098][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  584.411098][   T10]      ___sys_sendmsg+0xee/0x170
[  584.411098][   T10]      __sys_sendmsg+0xcd/0x170
[  584.411098][   T10]      do_syscall_64+0xc6/0x1e0
[  584.411098][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  584.411098][   T10] 
[  584.412894][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  584.412894][   T10]      neigh_parms_alloc+0x1e5/0x510
[  584.412894][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  584.412894][   T10]      ipv6_find_idev+0x102/0x170
[  584.412894][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  584.412894][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  584.412894][   T10]      netlink_rcv_skb+0x130/0x360
[  584.412894][   T10]      netlink_unicast+0x449/0x710
[  584.412894][   T10]      netlink_sendmsg+0x723/0xbe0
[  584.412894][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  584.412894][   T10]      ___sys_sendmsg+0xee/0x170
[  584.412894][   T10]      __sys_sendmsg+0xcd/0x170
[  584.412894][   T10]      do_syscall_64+0xc6/0x1e0
[  584.412894][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  584.412894][   T10] 
[  584.415082][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  584.415396][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  584.415396][   T10]      dst_init+0x84/0x4a0
[  584.415396][   T10]      dst_alloc+0x97/0x150
[  584.415396][   T10]      ip6_dst_alloc+0x23/0x90
[  584.415396][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  584.415396][   T10]      ip6_pol_route+0x56f/0x840
[  584.415396][   T10]      fib6_rule_lookup+0x456/0x630
[  584.415396][   T10]      ip6_route_input+0x59c/0xa50
[  584.415396][   T10]      ipv6_rcv+0x397/0x810
[  584.415396][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  584.415396][   T10]      process_backlog+0x101/0x620
[  584.415396][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  584.415396][   T10]      net_rx_action+0x495/0xbe0
[  584.415396][   T10]      __do_softirq+0x1b5/0x7f6
[  584.415396][   T10] 
[  584.418004][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  584.418004][   T10]      netdev_get_by_index+0x5e/0x80
[  584.418004][   T10]      fib6_nh_init+0x3d8/0x1580
[  584.418004][   T10]      ip6_route_info_create+0xf18/0x17d0
[  584.418004][   T10]      ip6_route_add+0x1c/0x140
[  584.418004][   T10]      addrconf_prefix_route+0x2a6/0x430
[  584.418004][   T10]      inet6_addr_add+0x4f8/0xa40
[  584.418004][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  584.418004][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  584.418004][   T10]      netlink_rcv_skb+0x130/0x360
[  584.418004][   T10]      netlink_unicast+0x449/0x710
[  584.418004][   T10]      netlink_sendmsg+0x723/0xbe0
[  584.418004][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  584.418004][   T10]      ___sys_sendmsg+0xee/0x170
[  584.418004][   T10]      __sys_sendmsg+0xcd/0x170
[  584.418004][   T10]      do_syscall_64+0xc6/0x1e0
[  584.418004][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  584.418004][   T10] 
[  584.421498][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  584.421498][   T10]      netdev_get_by_index+0x5e/0x80
[  584.421498][   T10]      fib6_nh_init+0x3d8/0x1580
[  584.421498][   T10]      ip6_route_info_create+0xf18/0x17d0
[  584.421498][   T10]      addrconf_f6i_alloc+0x315/0x560
[  584.421498][   T10]      ipv6_add_addr+0x411/0x2000
[  584.421498][   T10]      inet6_addr_add+0x30e/0xa40
[  584.421498][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  584.421498][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  584.421498][   T10]      netlink_rcv_skb+0x130/0x360
[  584.421498][   T10]      netlink_unicast+0x449/0x710
[  584.421498][   T10]      netlink_sendmsg+0x723/0xbe0
[  584.421498][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  584.421498][   T10]      ___sys_sendmsg+0xee/0x170
[  584.421498][   T10]      __sys_sendmsg+0xcd/0x170
[  584.421498][   T10]      do_syscall_64+0xc6/0x1e0
[  584.421498][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  584.421498][   T10] 
[  584.425001][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  584.425001][   T10]      netdev_get_by_index+0x5e/0x80
[  584.425001][   T10]      fib6_nh_init+0x3d8/0x1580
[  584.425001][   T10]      ip6_route_info_create+0xf18/0x17d0
[  584.425001][   T10]      ip6_route_add+0x1c/0x140
[  584.425001][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  584.425001][   T10]      addrconf_add_dev+0xe2/0x170
[  584.425001][   T10]      inet6_addr_add+0x12f/0xa40
[  584.425001][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  584.425001][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  584.425001][   T10]      netlink_rcv_skb+0x130/0x360
[  584.425001][   T10]      netlink_unicast+0x449/0x710
[  584.425001][   T10]      netlink_sendmsg+0x723/0xbe0
[  584.425001][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  584.425001][   T10]      ___sys_sendmsg+0xee/0x170
[  584.425001][   T10]      __sys_sendmsg+0xcd/0x170
[  584.425001][   T10]      do_syscall_64+0xc6/0x1e0
[  584.425001][   T10] 
[  584.428430][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  584.428430][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  584.428430][   T10]      ipv6_find_idev+0x102/0x170
[  584.428430][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  584.428430][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  584.428430][   T10]      netlink_rcv_skb+0x130/0x360
[  584.428430][   T10]      netlink_unicast+0x449/0x710
[  584.428430][   T10]      netlink_sendmsg+0x723/0xbe0
[  584.428430][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  584.428430][   T10]      ___sys_sendmsg+0xee/0x170
[  584.428430][   T10]      __sys_sendmsg+0xcd/0x170
[  584.428430][   T10]      do_syscall_64+0xc6/0x1e0
[  584.428430][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  584.428430][   T10] 
[  584.431127][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  584.431127][   T10]      neigh_parms_alloc+0x1e5/0x510
[  584.431127][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  584.431127][   T10]      ipv6_find_idev+0x102/0x170
[  584.431127][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  584.431127][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  584.431127][   T10]      netlink_rcv_skb+0x130/0x360
[  584.431127][   T10]      netlink_unicast+0x449/0x710
[  584.431127][   T10]      netlink_sendmsg+0x723/0xbe0
[  584.431127][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  584.431127][   T10]      ___sys_sendmsg+0xee/0x170
[  584.431127][   T10]      __sys_sendmsg+0xcd/0x170
[  584.431127][   T10]      do_syscall_64+0xc6/0x1e0
[  584.431127][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  584.431127][   T10] 
[  594.681802][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  594.682186][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  594.682186][   T10]      dst_init+0x84/0x4a0
[  594.682186][   T10]      dst_alloc+0x97/0x150
[  594.682186][   T10]      ip6_dst_alloc+0x23/0x90
[  594.682186][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  594.682186][   T10]      ip6_pol_route+0x56f/0x840
[  594.682186][   T10]      fib6_rule_lookup+0x456/0x630
[  594.682186][   T10]      ip6_route_input+0x59c/0xa50
[  594.682186][   T10]      ipv6_rcv+0x397/0x810
[  594.682186][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  594.682186][   T10]      process_backlog+0x101/0x620
[  594.682186][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  594.682186][   T10]      net_rx_action+0x495/0xbe0
[  594.682186][   T10]      __do_softirq+0x1b5/0x7f6
[  594.682186][   T10] 
[  594.684121][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  594.684121][   T10]      netdev_get_by_index+0x5e/0x80
[  594.684121][   T10]      fib6_nh_init+0x3d8/0x1580
[  594.684121][   T10]      ip6_route_info_create+0xf18/0x17d0
[  594.684121][   T10]      ip6_route_add+0x1c/0x140
[  594.684121][   T10]      addrconf_prefix_route+0x2a6/0x430
[  594.684121][   T10]      inet6_addr_add+0x4f8/0xa40
[  594.684121][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  594.684121][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  594.684121][   T10]      netlink_rcv_skb+0x130/0x360
[  594.684121][   T10]      netlink_unicast+0x449/0x710
[  594.684121][   T10]      netlink_sendmsg+0x723/0xbe0
[  594.684121][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  594.684121][   T10]      ___sys_sendmsg+0xee/0x170
[  594.684121][   T10]      __sys_sendmsg+0xcd/0x170
[  594.684121][   T10]      do_syscall_64+0xc6/0x1e0
[  594.684121][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  594.684121][   T10] 
[  594.686455][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  594.686455][   T10]      netdev_get_by_index+0x5e/0x80
[  594.686455][   T10]      fib6_nh_init+0x3d8/0x1580
[  594.686455][   T10]      ip6_route_info_create+0xf18/0x17d0
[  594.686455][   T10]      addrconf_f6i_alloc+0x315/0x560
[  594.686455][   T10]      ipv6_add_addr+0x411/0x2000
[  594.686455][   T10]      inet6_addr_add+0x30e/0xa40
[  594.686455][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  594.686455][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  594.686455][   T10]      netlink_rcv_skb+0x130/0x360
[  594.686455][   T10]      netlink_unicast+0x449/0x710
[  594.686455][   T10]      netlink_sendmsg+0x723/0xbe0
[  594.686455][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  594.686455][   T10]      ___sys_sendmsg+0xee/0x170
[  594.686455][   T10]      __sys_sendmsg+0xcd/0x170
[  594.686455][   T10]      do_syscall_64+0xc6/0x1e0
[  594.686455][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  594.686455][   T10] 
[  594.688802][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  594.688802][   T10]      netdev_get_by_index+0x5e/0x80
[  594.688802][   T10]      fib6_nh_init+0x3d8/0x1580
[  594.688802][   T10]      ip6_route_info_create+0xf18/0x17d0
[  594.688802][   T10]      ip6_route_add+0x1c/0x140
[  594.688802][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  594.688802][   T10]      addrconf_add_dev+0xe2/0x170
[  594.688802][   T10]      inet6_addr_add+0x12f/0xa40
[  594.688802][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  594.688802][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  594.688802][   T10]      netlink_rcv_skb+0x130/0x360
[  594.688802][   T10]      netlink_unicast+0x449/0x710
[  594.688802][   T10]      netlink_sendmsg+0x723/0xbe0
[  594.688802][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  594.688802][   T10]      ___sys_sendmsg+0xee/0x170
[  594.688802][   T10]      __sys_sendmsg+0xcd/0x170
[  594.688802][   T10]      do_syscall_64+0xc6/0x1e0
[  594.688802][   T10] 
[  594.691112][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  594.691112][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  594.691112][   T10]      ipv6_find_idev+0x102/0x170
[  594.691112][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  594.691112][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  594.691112][   T10]      netlink_rcv_skb+0x130/0x360
[  594.691112][   T10]      netlink_unicast+0x449/0x710
[  594.691112][   T10]      netlink_sendmsg+0x723/0xbe0
[  594.691112][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  594.691112][   T10]      ___sys_sendmsg+0xee/0x170
[  594.691112][   T10]      __sys_sendmsg+0xcd/0x170
[  594.691112][   T10]      do_syscall_64+0xc6/0x1e0
[  594.691112][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  594.691112][   T10] 
[  594.692917][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  594.692917][   T10]      neigh_parms_alloc+0x1e5/0x510
[  594.692917][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  594.692917][   T10]      ipv6_find_idev+0x102/0x170
[  594.692917][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  594.692917][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  594.692917][   T10]      netlink_rcv_skb+0x130/0x360
[  594.692917][   T10]      netlink_unicast+0x449/0x710
[  594.692917][   T10]      netlink_sendmsg+0x723/0xbe0
[  594.692917][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  594.692917][   T10]      ___sys_sendmsg+0xee/0x170
[  594.692917][   T10]      __sys_sendmsg+0xcd/0x170
[  594.692917][   T10]      do_syscall_64+0xc6/0x1e0
[  594.692917][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  594.692917][   T10] 
[  594.694885][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  594.695161][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  594.695161][   T10]      dst_init+0x84/0x4a0
[  594.695161][   T10]      dst_alloc+0x97/0x150
[  594.695161][   T10]      ip6_dst_alloc+0x23/0x90
[  594.695161][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  594.695161][   T10]      ip6_pol_route+0x56f/0x840
[  594.695161][   T10]      fib6_rule_lookup+0x456/0x630
[  594.695161][   T10]      ip6_route_input+0x59c/0xa50
[  594.695161][   T10]      ipv6_rcv+0x397/0x810
[  594.695161][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  594.695161][   T10]      process_backlog+0x101/0x620
[  594.695161][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  594.695161][   T10]      net_rx_action+0x495/0xbe0
[  594.695161][   T10]      __do_softirq+0x1b5/0x7f6
[  594.695161][   T10] 
[  594.697099][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  594.697099][   T10]      netdev_get_by_index+0x5e/0x80
[  594.697099][   T10]      fib6_nh_init+0x3d8/0x1580
[  594.697099][   T10]      ip6_route_info_create+0xf18/0x17d0
[  594.697099][   T10]      ip6_route_add+0x1c/0x140
[  594.697099][   T10]      addrconf_prefix_route+0x2a6/0x430
[  594.697099][   T10]      inet6_addr_add+0x4f8/0xa40
[  594.697099][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  594.697099][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  594.697099][   T10]      netlink_rcv_skb+0x130/0x360
[  594.697099][   T10]      netlink_unicast+0x449/0x710
[  594.697099][   T10]      netlink_sendmsg+0x723/0xbe0
[  594.697099][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  594.697099][   T10]      ___sys_sendmsg+0xee/0x170
[  594.697099][   T10]      __sys_sendmsg+0xcd/0x170
[  594.697099][   T10]      do_syscall_64+0xc6/0x1e0
[  594.697099][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  594.697099][   T10] 
[  594.699426][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  594.699426][   T10]      netdev_get_by_index+0x5e/0x80
[  594.699426][   T10]      fib6_nh_init+0x3d8/0x1580
[  594.699426][   T10]      ip6_route_info_create+0xf18/0x17d0
[  594.699426][   T10]      addrconf_f6i_alloc+0x315/0x560
[  594.699426][   T10]      ipv6_add_addr+0x411/0x2000
[  594.699426][   T10]      inet6_addr_add+0x30e/0xa40
[  594.699426][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  594.699426][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  594.699426][   T10]      netlink_rcv_skb+0x130/0x360
[  594.699426][   T10]      netlink_unicast+0x449/0x710
[  594.699426][   T10]      netlink_sendmsg+0x723/0xbe0
[  594.699426][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  594.699426][   T10]      ___sys_sendmsg+0xee/0x170
[  594.699426][   T10]      __sys_sendmsg+0xcd/0x170
[  594.699426][   T10]      do_syscall_64+0xc6/0x1e0
[  594.699426][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  594.699426][   T10] 
[  594.701758][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  594.701758][   T10]      netdev_get_by_index+0x5e/0x80
[  594.701758][   T10]      fib6_nh_init+0x3d8/0x1580
[  594.701758][   T10]      ip6_route_info_create+0xf18/0x17d0
[  594.701758][   T10]      ip6_route_add+0x1c/0x140
[  594.701758][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  594.701758][   T10]      addrconf_add_dev+0xe2/0x170
[  594.701758][   T10]      inet6_addr_add+0x12f/0xa40
[  594.701758][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  594.701758][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  594.701758][   T10]      netlink_rcv_skb+0x130/0x360
[  594.701758][   T10]      netlink_unicast+0x449/0x710
[  594.701758][   T10]      netlink_sendmsg+0x723/0xbe0
[  594.701758][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  594.701758][   T10]      ___sys_sendmsg+0xee/0x170
[  594.701758][   T10]      __sys_sendmsg+0xcd/0x170
[  594.701758][   T10]      do_syscall_64+0xc6/0x1e0
[  594.701758][   T10] 
[  594.704067][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  594.704067][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  594.704067][   T10]      ipv6_find_idev+0x102/0x170
[  594.704067][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  594.704067][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  594.704067][   T10]      netlink_rcv_skb+0x130/0x360
[  594.704067][   T10]      netlink_unicast+0x449/0x710
[  594.704067][   T10]      netlink_sendmsg+0x723/0xbe0
[  594.704067][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  594.704067][   T10]      ___sys_sendmsg+0xee/0x170
[  594.704067][   T10]      __sys_sendmsg+0xcd/0x170
[  594.704067][   T10]      do_syscall_64+0xc6/0x1e0
[  594.704067][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  594.704067][   T10] 
[  594.705889][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  594.705889][   T10]      neigh_parms_alloc+0x1e5/0x510
[  594.705889][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  594.705889][   T10]      ipv6_find_idev+0x102/0x170
[  594.705889][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  594.705889][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  594.705889][   T10]      netlink_rcv_skb+0x130/0x360
[  594.705889][   T10]      netlink_unicast+0x449/0x710
[  594.705889][   T10]      netlink_sendmsg+0x723/0xbe0
[  594.705889][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  594.705889][   T10]      ___sys_sendmsg+0xee/0x170
[  594.705889][   T10]      __sys_sendmsg+0xcd/0x170
[  594.705889][   T10]      do_syscall_64+0xc6/0x1e0
[  594.705889][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  594.705889][   T10] 
[  604.961780][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  604.962243][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  604.962243][   T10]      dst_init+0x84/0x4a0
[  604.962243][   T10]      dst_alloc+0x97/0x150
[  604.962243][   T10]      ip6_dst_alloc+0x23/0x90
[  604.962243][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  604.962243][   T10]      ip6_pol_route+0x56f/0x840
[  604.962243][   T10]      fib6_rule_lookup+0x456/0x630
[  604.962243][   T10]      ip6_route_input+0x59c/0xa50
[  604.962243][   T10]      ipv6_rcv+0x397/0x810
[  604.962243][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  604.962243][   T10]      process_backlog+0x101/0x620
[  604.962243][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  604.962243][   T10]      net_rx_action+0x495/0xbe0
[  604.962243][   T10]      __do_softirq+0x1b5/0x7f6
[  604.962243][   T10] 
[  604.964210][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  604.964210][   T10]      netdev_get_by_index+0x5e/0x80
[  604.964210][   T10]      fib6_nh_init+0x3d8/0x1580
[  604.964210][   T10]      ip6_route_info_create+0xf18/0x17d0
[  604.964210][   T10]      ip6_route_add+0x1c/0x140
[  604.964210][   T10]      addrconf_prefix_route+0x2a6/0x430
[  604.964210][   T10]      inet6_addr_add+0x4f8/0xa40
[  604.964210][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  604.964210][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  604.964210][   T10]      netlink_rcv_skb+0x130/0x360
[  604.964210][   T10]      netlink_unicast+0x449/0x710
[  604.964210][   T10]      netlink_sendmsg+0x723/0xbe0
[  604.964210][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  604.964210][   T10]      ___sys_sendmsg+0xee/0x170
[  604.964210][   T10]      __sys_sendmsg+0xcd/0x170
[  604.964210][   T10]      do_syscall_64+0xc6/0x1e0
[  604.964210][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  604.964210][   T10] 
[  604.966561][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  604.966561][   T10]      netdev_get_by_index+0x5e/0x80
[  604.966561][   T10]      fib6_nh_init+0x3d8/0x1580
[  604.966561][   T10]      ip6_route_info_create+0xf18/0x17d0
[  604.966561][   T10]      addrconf_f6i_alloc+0x315/0x560
[  604.966561][   T10]      ipv6_add_addr+0x411/0x2000
[  604.966561][   T10]      inet6_addr_add+0x30e/0xa40
[  604.966561][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  604.966561][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  604.966561][   T10]      netlink_rcv_skb+0x130/0x360
[  604.966561][   T10]      netlink_unicast+0x449/0x710
[  604.966561][   T10]      netlink_sendmsg+0x723/0xbe0
[  604.966561][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  604.966561][   T10]      ___sys_sendmsg+0xee/0x170
[  604.966561][   T10]      __sys_sendmsg+0xcd/0x170
[  604.966561][   T10]      do_syscall_64+0xc6/0x1e0
[  604.966561][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  604.966561][   T10] 
[  604.968898][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  604.968898][   T10]      netdev_get_by_index+0x5e/0x80
[  604.968898][   T10]      fib6_nh_init+0x3d8/0x1580
[  604.968898][   T10]      ip6_route_info_create+0xf18/0x17d0
[  604.968898][   T10]      ip6_route_add+0x1c/0x140
[  604.968898][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  604.968898][   T10]      addrconf_add_dev+0xe2/0x170
[  604.968898][   T10]      inet6_addr_add+0x12f/0xa40
[  604.968898][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  604.968898][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  604.968898][   T10]      netlink_rcv_skb+0x130/0x360
[  604.968898][   T10]      netlink_unicast+0x449/0x710
[  604.968898][   T10]      netlink_sendmsg+0x723/0xbe0
[  604.968898][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  604.968898][   T10]      ___sys_sendmsg+0xee/0x170
[  604.968898][   T10]      __sys_sendmsg+0xcd/0x170
[  604.968898][   T10]      do_syscall_64+0xc6/0x1e0
[  604.968898][   T10] 
[  604.971216][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  604.971216][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  604.971216][   T10]      ipv6_find_idev+0x102/0x170
[  604.971216][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  604.971216][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  604.971216][   T10]      netlink_rcv_skb+0x130/0x360
[  604.971216][   T10]      netlink_unicast+0x449/0x710
[  604.971216][   T10]      netlink_sendmsg+0x723/0xbe0
[  604.971216][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  604.971216][   T10]      ___sys_sendmsg+0xee/0x170
[  604.971216][   T10]      __sys_sendmsg+0xcd/0x170
[  604.971216][   T10]      do_syscall_64+0xc6/0x1e0
[  604.971216][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  604.971216][   T10] 
[  604.973028][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  604.973028][   T10]      neigh_parms_alloc+0x1e5/0x510
[  604.973028][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  604.973028][   T10]      ipv6_find_idev+0x102/0x170
[  604.973028][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  604.973028][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  604.973028][   T10]      netlink_rcv_skb+0x130/0x360
[  604.973028][   T10]      netlink_unicast+0x449/0x710
[  604.973028][   T10]      netlink_sendmsg+0x723/0xbe0
[  604.973028][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  604.973028][   T10]      ___sys_sendmsg+0xee/0x170
[  604.973028][   T10]      __sys_sendmsg+0xcd/0x170
[  604.973028][   T10]      do_syscall_64+0xc6/0x1e0
[  604.973028][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  604.973028][   T10] 
[  604.974999][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  604.975266][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  604.975266][   T10]      dst_init+0x84/0x4a0
[  604.975266][   T10]      dst_alloc+0x97/0x150
[  604.975266][   T10]      ip6_dst_alloc+0x23/0x90
[  604.975266][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  604.975266][   T10]      ip6_pol_route+0x56f/0x840
[  604.975266][   T10]      fib6_rule_lookup+0x456/0x630
[  604.975266][   T10]      ip6_route_input+0x59c/0xa50
[  604.975266][   T10]      ipv6_rcv+0x397/0x810
[  604.975266][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  604.975266][   T10]      process_backlog+0x101/0x620
[  604.975266][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  604.975266][   T10]      net_rx_action+0x495/0xbe0
[  604.975266][   T10]      __do_softirq+0x1b5/0x7f6
[  604.975266][   T10] 
[  604.977176][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  604.977176][   T10]      netdev_get_by_index+0x5e/0x80
[  604.977176][   T10]      fib6_nh_init+0x3d8/0x1580
[  604.977176][   T10]      ip6_route_info_create+0xf18/0x17d0
[  604.977176][   T10]      ip6_route_add+0x1c/0x140
[  604.977176][   T10]      addrconf_prefix_route+0x2a6/0x430
[  604.977176][   T10]      inet6_addr_add+0x4f8/0xa40
[  604.977176][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  604.977176][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  604.977176][   T10]      netlink_rcv_skb+0x130/0x360
[  604.977176][   T10]      netlink_unicast+0x449/0x710
[  604.977176][   T10]      netlink_sendmsg+0x723/0xbe0
[  604.977176][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  604.977176][   T10]      ___sys_sendmsg+0xee/0x170
[  604.977176][   T10]      __sys_sendmsg+0xcd/0x170
[  604.977176][   T10]      do_syscall_64+0xc6/0x1e0
[  604.977176][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  604.977176][   T10] 
[  604.979500][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  604.979500][   T10]      netdev_get_by_index+0x5e/0x80
[  604.979500][   T10]      fib6_nh_init+0x3d8/0x1580
[  604.979500][   T10]      ip6_route_info_create+0xf18/0x17d0
[  604.979500][   T10]      addrconf_f6i_alloc+0x315/0x560
[  604.979500][   T10]      ipv6_add_addr+0x411/0x2000
[  604.979500][   T10]      inet6_addr_add+0x30e/0xa40
[  604.979500][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  604.979500][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  604.979500][   T10]      netlink_rcv_skb+0x130/0x360
[  604.979500][   T10]      netlink_unicast+0x449/0x710
[  604.979500][   T10]      netlink_sendmsg+0x723/0xbe0
[  604.979500][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  604.979500][   T10]      ___sys_sendmsg+0xee/0x170
[  604.979500][   T10]      __sys_sendmsg+0xcd/0x170
[  604.979500][   T10]      do_syscall_64+0xc6/0x1e0
[  604.979500][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  604.979500][   T10] 
[  604.981840][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  604.981840][   T10]      netdev_get_by_index+0x5e/0x80
[  604.981840][   T10]      fib6_nh_init+0x3d8/0x1580
[  604.981840][   T10]      ip6_route_info_create+0xf18/0x17d0
[  604.981840][   T10]      ip6_route_add+0x1c/0x140
[  604.981840][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  604.981840][   T10]      addrconf_add_dev+0xe2/0x170
[  604.981840][   T10]      inet6_addr_add+0x12f/0xa40
[  604.981840][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  604.981840][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  604.981840][   T10]      netlink_rcv_skb+0x130/0x360
[  604.981840][   T10]      netlink_unicast+0x449/0x710
[  604.981840][   T10]      netlink_sendmsg+0x723/0xbe0
[  604.981840][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  604.981840][   T10]      ___sys_sendmsg+0xee/0x170
[  604.981840][   T10]      __sys_sendmsg+0xcd/0x170
[  604.981840][   T10]      do_syscall_64+0xc6/0x1e0
[  604.981840][   T10] 
[  604.984131][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  604.984131][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  604.984131][   T10]      ipv6_find_idev+0x102/0x170
[  604.984131][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  604.984131][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  604.984131][   T10]      netlink_rcv_skb+0x130/0x360
[  604.984131][   T10]      netlink_unicast+0x449/0x710
[  604.984131][   T10]      netlink_sendmsg+0x723/0xbe0
[  604.984131][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  604.984131][   T10]      ___sys_sendmsg+0xee/0x170
[  604.984131][   T10]      __sys_sendmsg+0xcd/0x170
[  604.984131][   T10]      do_syscall_64+0xc6/0x1e0
[  604.984131][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  604.984131][   T10] 
[  604.985926][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  604.985926][   T10]      neigh_parms_alloc+0x1e5/0x510
[  604.985926][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  604.985926][   T10]      ipv6_find_idev+0x102/0x170
[  604.985926][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  604.985926][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  604.985926][   T10]      netlink_rcv_skb+0x130/0x360
[  604.985926][   T10]      netlink_unicast+0x449/0x710
[  604.985926][   T10]      netlink_sendmsg+0x723/0xbe0
[  604.985926][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  604.985926][   T10]      ___sys_sendmsg+0xee/0x170
[  604.985926][   T10]      __sys_sendmsg+0xcd/0x170
[  604.985926][   T10]      do_syscall_64+0xc6/0x1e0
[  604.985926][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  604.985926][   T10] 
[  615.241789][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  615.242254][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  615.242254][   T10]      dst_init+0x84/0x4a0
[  615.242254][   T10]      dst_alloc+0x97/0x150
[  615.242254][   T10]      ip6_dst_alloc+0x23/0x90
[  615.242254][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  615.242254][   T10]      ip6_pol_route+0x56f/0x840
[  615.242254][   T10]      fib6_rule_lookup+0x456/0x630
[  615.242254][   T10]      ip6_route_input+0x59c/0xa50
[  615.242254][   T10]      ipv6_rcv+0x397/0x810
[  615.242254][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  615.242254][   T10]      process_backlog+0x101/0x620
[  615.242254][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  615.242254][   T10]      net_rx_action+0x495/0xbe0
[  615.242254][   T10]      __do_softirq+0x1b5/0x7f6
[  615.242254][   T10] 
[  615.244207][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  615.244207][   T10]      netdev_get_by_index+0x5e/0x80
[  615.244207][   T10]      fib6_nh_init+0x3d8/0x1580
[  615.244207][   T10]      ip6_route_info_create+0xf18/0x17d0
[  615.244207][   T10]      ip6_route_add+0x1c/0x140
[  615.244207][   T10]      addrconf_prefix_route+0x2a6/0x430
[  615.244207][   T10]      inet6_addr_add+0x4f8/0xa40
[  615.244207][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  615.244207][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  615.244207][   T10]      netlink_rcv_skb+0x130/0x360
[  615.244207][   T10]      netlink_unicast+0x449/0x710
[  615.244207][   T10]      netlink_sendmsg+0x723/0xbe0
[  615.244207][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  615.244207][   T10]      ___sys_sendmsg+0xee/0x170
[  615.244207][   T10]      __sys_sendmsg+0xcd/0x170
[  615.244207][   T10]      do_syscall_64+0xc6/0x1e0
[  615.244207][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  615.244207][   T10] 
[  615.246558][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  615.246558][   T10]      netdev_get_by_index+0x5e/0x80
[  615.246558][   T10]      fib6_nh_init+0x3d8/0x1580
[  615.246558][   T10]      ip6_route_info_create+0xf18/0x17d0
[  615.246558][   T10]      addrconf_f6i_alloc+0x315/0x560
[  615.246558][   T10]      ipv6_add_addr+0x411/0x2000
[  615.246558][   T10]      inet6_addr_add+0x30e/0xa40
[  615.246558][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  615.246558][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  615.246558][   T10]      netlink_rcv_skb+0x130/0x360
[  615.246558][   T10]      netlink_unicast+0x449/0x710
[  615.246558][   T10]      netlink_sendmsg+0x723/0xbe0
[  615.246558][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  615.246558][   T10]      ___sys_sendmsg+0xee/0x170
[  615.246558][   T10]      __sys_sendmsg+0xcd/0x170
[  615.246558][   T10]      do_syscall_64+0xc6/0x1e0
[  615.246558][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  615.246558][   T10] 
[  615.248913][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  615.248913][   T10]      netdev_get_by_index+0x5e/0x80
[  615.248913][   T10]      fib6_nh_init+0x3d8/0x1580
[  615.248913][   T10]      ip6_route_info_create+0xf18/0x17d0
[  615.248913][   T10]      ip6_route_add+0x1c/0x140
[  615.248913][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  615.248913][   T10]      addrconf_add_dev+0xe2/0x170
[  615.248913][   T10]      inet6_addr_add+0x12f/0xa40
[  615.248913][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  615.248913][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  615.248913][   T10]      netlink_rcv_skb+0x130/0x360
[  615.248913][   T10]      netlink_unicast+0x449/0x710
[  615.248913][   T10]      netlink_sendmsg+0x723/0xbe0
[  615.248913][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  615.248913][   T10]      ___sys_sendmsg+0xee/0x170
[  615.248913][   T10]      __sys_sendmsg+0xcd/0x170
[  615.248913][   T10]      do_syscall_64+0xc6/0x1e0
[  615.248913][   T10] 
[  615.251260][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  615.251260][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  615.251260][   T10]      ipv6_find_idev+0x102/0x170
[  615.251260][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  615.251260][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  615.251260][   T10]      netlink_rcv_skb+0x130/0x360
[  615.251260][   T10]      netlink_unicast+0x449/0x710
[  615.251260][   T10]      netlink_sendmsg+0x723/0xbe0
[  615.251260][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  615.251260][   T10]      ___sys_sendmsg+0xee/0x170
[  615.251260][   T10]      __sys_sendmsg+0xcd/0x170
[  615.251260][   T10]      do_syscall_64+0xc6/0x1e0
[  615.251260][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  615.251260][   T10] 
[  615.253083][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  615.253083][   T10]      neigh_parms_alloc+0x1e5/0x510
[  615.253083][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  615.253083][   T10]      ipv6_find_idev+0x102/0x170
[  615.253083][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  615.253083][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  615.253083][   T10]      netlink_rcv_skb+0x130/0x360
[  615.253083][   T10]      netlink_unicast+0x449/0x710
[  615.253083][   T10]      netlink_sendmsg+0x723/0xbe0
[  615.253083][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  615.253083][   T10]      ___sys_sendmsg+0xee/0x170
[  615.253083][   T10]      __sys_sendmsg+0xcd/0x170
[  615.253083][   T10]      do_syscall_64+0xc6/0x1e0
[  615.253083][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  615.253083][   T10] 
[  615.255079][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  615.255346][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  615.255346][   T10]      dst_init+0x84/0x4a0
[  615.255346][   T10]      dst_alloc+0x97/0x150
[  615.255346][   T10]      ip6_dst_alloc+0x23/0x90
[  615.255346][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  615.255346][   T10]      ip6_pol_route+0x56f/0x840
[  615.255346][   T10]      fib6_rule_lookup+0x456/0x630
[  615.255346][   T10]      ip6_route_input+0x59c/0xa50
[  615.255346][   T10]      ipv6_rcv+0x397/0x810
[  615.255346][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  615.255346][   T10]      process_backlog+0x101/0x620
[  615.255346][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  615.255346][   T10]      net_rx_action+0x495/0xbe0
[  615.255346][   T10]      __do_softirq+0x1b5/0x7f6
[  615.255346][   T10] 
[  615.257275][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  615.257275][   T10]      netdev_get_by_index+0x5e/0x80
[  615.257275][   T10]      fib6_nh_init+0x3d8/0x1580
[  615.257275][   T10]      ip6_route_info_create+0xf18/0x17d0
[  615.257275][   T10]      ip6_route_add+0x1c/0x140
[  615.257275][   T10]      addrconf_prefix_route+0x2a6/0x430
[  615.257275][   T10]      inet6_addr_add+0x4f8/0xa40
[  615.257275][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  615.257275][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  615.257275][   T10]      netlink_rcv_skb+0x130/0x360
[  615.257275][   T10]      netlink_unicast+0x449/0x710
[  615.257275][   T10]      netlink_sendmsg+0x723/0xbe0
[  615.257275][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  615.257275][   T10]      ___sys_sendmsg+0xee/0x170
[  615.257275][   T10]      __sys_sendmsg+0xcd/0x170
[  615.257275][   T10]      do_syscall_64+0xc6/0x1e0
[  615.257275][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  615.257275][   T10] 
[  615.259628][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  615.259628][   T10]      netdev_get_by_index+0x5e/0x80
[  615.259628][   T10]      fib6_nh_init+0x3d8/0x1580
[  615.259628][   T10]      ip6_route_info_create+0xf18/0x17d0
[  615.259628][   T10]      addrconf_f6i_alloc+0x315/0x560
[  615.259628][   T10]      ipv6_add_addr+0x411/0x2000
[  615.259628][   T10]      inet6_addr_add+0x30e/0xa40
[  615.259628][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  615.259628][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  615.259628][   T10]      netlink_rcv_skb+0x130/0x360
[  615.259628][   T10]      netlink_unicast+0x449/0x710
[  615.259628][   T10]      netlink_sendmsg+0x723/0xbe0
[  615.259628][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  615.259628][   T10]      ___sys_sendmsg+0xee/0x170
[  615.259628][   T10]      __sys_sendmsg+0xcd/0x170
[  615.259628][   T10]      do_syscall_64+0xc6/0x1e0
[  615.259628][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  615.259628][   T10] 
[  615.261957][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  615.261957][   T10]      netdev_get_by_index+0x5e/0x80
[  615.261957][   T10]      fib6_nh_init+0x3d8/0x1580
[  615.261957][   T10]      ip6_route_info_create+0xf18/0x17d0
[  615.261957][   T10]      ip6_route_add+0x1c/0x140
[  615.261957][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  615.261957][   T10]      addrconf_add_dev+0xe2/0x170
[  615.261957][   T10]      inet6_addr_add+0x12f/0xa40
[  615.261957][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  615.261957][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  615.261957][   T10]      netlink_rcv_skb+0x130/0x360
[  615.261957][   T10]      netlink_unicast+0x449/0x710
[  615.261957][   T10]      netlink_sendmsg+0x723/0xbe0
[  615.261957][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  615.261957][   T10]      ___sys_sendmsg+0xee/0x170
[  615.261957][   T10]      __sys_sendmsg+0xcd/0x170
[  615.261957][   T10]      do_syscall_64+0xc6/0x1e0
[  615.261957][   T10] 
[  615.264272][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  615.264272][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  615.264272][   T10]      ipv6_find_idev+0x102/0x170
[  615.264272][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  615.264272][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  615.264272][   T10]      netlink_rcv_skb+0x130/0x360
[  615.264272][   T10]      netlink_unicast+0x449/0x710
[  615.264272][   T10]      netlink_sendmsg+0x723/0xbe0
[  615.264272][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  615.264272][   T10]      ___sys_sendmsg+0xee/0x170
[  615.264272][   T10]      __sys_sendmsg+0xcd/0x170
[  615.264272][   T10]      do_syscall_64+0xc6/0x1e0
[  615.264272][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  615.264272][   T10] 
[  615.266071][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  615.266071][   T10]      neigh_parms_alloc+0x1e5/0x510
[  615.266071][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  615.266071][   T10]      ipv6_find_idev+0x102/0x170
[  615.266071][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  615.266071][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  615.266071][   T10]      netlink_rcv_skb+0x130/0x360
[  615.266071][   T10]      netlink_unicast+0x449/0x710
[  615.266071][   T10]      netlink_sendmsg+0x723/0xbe0
[  615.266071][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  615.266071][   T10]      ___sys_sendmsg+0xee/0x170
[  615.266071][   T10]      __sys_sendmsg+0xcd/0x170
[  615.266071][   T10]      do_syscall_64+0xc6/0x1e0
[  615.266071][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  615.266071][   T10] 
[  615.721804][   T42] INFO: task modprobe:376 blocked for more than 491 seconds.
[  615.722173][   T42]       Not tainted 6.8.0-virtme #1
[  615.722324][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  615.722566][   T42] task:modprobe        state:D stack:25648 pid:376   tgid:376   ppid:39     flags:0x00004002
[  615.722891][   T42] Call Trace:
[  615.723007][   T42]  <TASK>
[  615.723095][   T42]  __schedule+0x705/0x1ac0
[  615.723260][   T42]  ? __pfx___schedule+0x10/0x10
[  615.723409][   T42]  ? schedule+0x1a5/0x210
[  615.723526][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  615.723694][   T42]  ? mark_lock+0x38/0x3e0
[  615.723809][   T42]  ? do_raw_spin_lock+0x131/0x270
[  615.723962][   T42]  ? schedule+0x1a5/0x210
[  615.724090][   T42]  schedule+0xdf/0x210
[  615.724223][   T42]  schedule_preempt_disabled+0x15/0x30
[  615.724441][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[  615.724686][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[  615.724944][   T42]  ? kasan_save_stack+0x34/0x50
[  615.725163][   T42]  ? kasan_save_stack+0x24/0x50
[  615.725392][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  615.725630][   T42]  ? lock_acquire+0x1c1/0x220
[  615.725860][   T42]  ? register_pernet_subsys+0x1a/0x50
[  615.726093][   T42]  down_write+0x1c9/0x200
[  615.726261][   T42]  ? __pfx_down_write+0x10/0x10
[  615.726477][   T42]  ? __pfx___lock_release+0x10/0x10
[  615.726702][   T42]  ? __pfx_nf_defrag_init+0x10/0x10 [nf_defrag_ipv4]
[  615.726967][   T42]  register_pernet_subsys+0x1a/0x50
[  615.727182][   T42]  nf_defrag_init+0x19/0xff0 [nf_defrag_ipv4]
[  615.727469][   T42]  do_one_initcall+0xc8/0x3f0
[  615.727721][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[  615.727933][   T42]  ? __create_object+0x5e/0xb0
[  615.728163][   T42]  ? kasan_unpoison+0x27/0x60
[  615.728393][   T42]  do_init_module+0x233/0x740
[  615.728623][   T42]  load_module+0x16b5/0x2350
[  615.728872][   T42]  ? __pfx_load_module+0x10/0x10
[  615.729160][   T42]  ? kernel_read_file+0x3d2/0x520
[  615.729314][   T42]  ? kernel_read_file+0x300/0x520
[  615.729468][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[  615.729626][   T42]  ? init_module_from_file+0xd2/0x130
[  615.729789][   T42]  init_module_from_file+0xd2/0x130
[  615.729943][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[  615.730130][   T42]  ? __lock_release+0x103/0x460
[  615.730280][   T42]  ? idempotent_init_module+0x32a/0x620
[  615.730439][   T42]  ? idempotent_init_module+0x32a/0x620
[  615.730590][   T42]  ? do_raw_spin_unlock+0x58/0x220
[  615.730757][   T42]  idempotent_init_module+0x342/0x620
[  615.730907][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[  615.731115][   T42]  __x64_sys_finit_module+0xbe/0x130
[  615.731266][   T42]  do_syscall_64+0xc6/0x1e0
[  615.731418][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  615.731603][   T42] RIP: 0033:0x7f5fd44b2e5d
[  615.731778][   T42] RSP: 002b:00007ffcc85e8928 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  615.731999][   T42] RAX: ffffffffffffffda RBX: 000055d19cb2e8d0 RCX: 00007f5fd44b2e5d
[  615.732221][   T42] RDX: 0000000000000000 RSI: 000055d18f6a6a2a RDI: 0000000000000000
[  615.732438][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 000055d19cb2dc10
[  615.732660][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055d18f6a6a2a
[  615.732890][   T42] R13: 000055d19cb2e880 R14: 000055d19cb2f710 R15: 0000000000000000
[  615.733122][   T42]  </TASK>
[  615.733238][   T42] 
[  615.733238][   T42] Showing all locks held in the system:
[  615.733452][   T42] 3 locks held by kworker/u16:0/10:
[  615.733602][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  615.733913][   T42]  #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  615.734178][   T42]  #2: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[  615.734443][   T42] 2 locks held by kworker/u20:0/39:
[  615.734589][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  615.734893][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  615.735220][   T42] 1 lock held by khungtaskd/42:
[  615.735365][   T42]  #0: ffffffff9b5591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[  615.735637][   T42] 1 lock held by modprobe/376:
[  615.735799][   T42]  #0: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[  615.736094][   T42] 
[  615.736168][   T42] =============================================
[  615.736168][   T42] 
[  625.521784][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  625.522234][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  625.522234][   T10]      dst_init+0x84/0x4a0
[  625.522234][   T10]      dst_alloc+0x97/0x150
[  625.522234][   T10]      ip6_dst_alloc+0x23/0x90
[  625.522234][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  625.522234][   T10]      ip6_pol_route+0x56f/0x840
[  625.522234][   T10]      fib6_rule_lookup+0x456/0x630
[  625.522234][   T10]      ip6_route_input+0x59c/0xa50
[  625.522234][   T10]      ipv6_rcv+0x397/0x810
[  625.522234][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  625.522234][   T10]      process_backlog+0x101/0x620
[  625.522234][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  625.522234][   T10]      net_rx_action+0x495/0xbe0
[  625.522234][   T10]      __do_softirq+0x1b5/0x7f6
[  625.522234][   T10] 
[  625.524169][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  625.524169][   T10]      netdev_get_by_index+0x5e/0x80
[  625.524169][   T10]      fib6_nh_init+0x3d8/0x1580
[  625.524169][   T10]      ip6_route_info_create+0xf18/0x17d0
[  625.524169][   T10]      ip6_route_add+0x1c/0x140
[  625.524169][   T10]      addrconf_prefix_route+0x2a6/0x430
[  625.524169][   T10]      inet6_addr_add+0x4f8/0xa40
[  625.524169][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  625.524169][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  625.524169][   T10]      netlink_rcv_skb+0x130/0x360
[  625.524169][   T10]      netlink_unicast+0x449/0x710
[  625.524169][   T10]      netlink_sendmsg+0x723/0xbe0
[  625.524169][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  625.524169][   T10]      ___sys_sendmsg+0xee/0x170
[  625.524169][   T10]      __sys_sendmsg+0xcd/0x170
[  625.524169][   T10]      do_syscall_64+0xc6/0x1e0
[  625.524169][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  625.524169][   T10] 
[  625.526508][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  625.526508][   T10]      netdev_get_by_index+0x5e/0x80
[  625.526508][   T10]      fib6_nh_init+0x3d8/0x1580
[  625.526508][   T10]      ip6_route_info_create+0xf18/0x17d0
[  625.526508][   T10]      addrconf_f6i_alloc+0x315/0x560
[  625.526508][   T10]      ipv6_add_addr+0x411/0x2000
[  625.526508][   T10]      inet6_addr_add+0x30e/0xa40
[  625.526508][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  625.526508][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  625.526508][   T10]      netlink_rcv_skb+0x130/0x360
[  625.526508][   T10]      netlink_unicast+0x449/0x710
[  625.526508][   T10]      netlink_sendmsg+0x723/0xbe0
[  625.526508][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  625.526508][   T10]      ___sys_sendmsg+0xee/0x170
[  625.526508][   T10]      __sys_sendmsg+0xcd/0x170
[  625.526508][   T10]      do_syscall_64+0xc6/0x1e0
[  625.526508][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  625.526508][   T10] 
[  625.528849][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  625.528849][   T10]      netdev_get_by_index+0x5e/0x80
[  625.528849][   T10]      fib6_nh_init+0x3d8/0x1580
[  625.528849][   T10]      ip6_route_info_create+0xf18/0x17d0
[  625.528849][   T10]      ip6_route_add+0x1c/0x140
[  625.528849][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  625.528849][   T10]      addrconf_add_dev+0xe2/0x170
[  625.528849][   T10]      inet6_addr_add+0x12f/0xa40
[  625.528849][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  625.528849][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  625.528849][   T10]      netlink_rcv_skb+0x130/0x360
[  625.528849][   T10]      netlink_unicast+0x449/0x710
[  625.528849][   T10]      netlink_sendmsg+0x723/0xbe0
[  625.528849][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  625.528849][   T10]      ___sys_sendmsg+0xee/0x170
[  625.528849][   T10]      __sys_sendmsg+0xcd/0x170
[  625.528849][   T10]      do_syscall_64+0xc6/0x1e0
[  625.528849][   T10] 
[  625.531134][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  625.531134][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  625.531134][   T10]      ipv6_find_idev+0x102/0x170
[  625.531134][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  625.531134][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  625.531134][   T10]      netlink_rcv_skb+0x130/0x360
[  625.531134][   T10]      netlink_unicast+0x449/0x710
[  625.531134][   T10]      netlink_sendmsg+0x723/0xbe0
[  625.531134][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  625.531134][   T10]      ___sys_sendmsg+0xee/0x170
[  625.531134][   T10]      __sys_sendmsg+0xcd/0x170
[  625.531134][   T10]      do_syscall_64+0xc6/0x1e0
[  625.531134][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  625.531134][   T10] 
[  625.532938][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  625.532938][   T10]      neigh_parms_alloc+0x1e5/0x510
[  625.532938][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  625.532938][   T10]      ipv6_find_idev+0x102/0x170
[  625.532938][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  625.532938][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  625.532938][   T10]      netlink_rcv_skb+0x130/0x360
[  625.532938][   T10]      netlink_unicast+0x449/0x710
[  625.532938][   T10]      netlink_sendmsg+0x723/0xbe0
[  625.532938][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  625.532938][   T10]      ___sys_sendmsg+0xee/0x170
[  625.532938][   T10]      __sys_sendmsg+0xcd/0x170
[  625.532938][   T10]      do_syscall_64+0xc6/0x1e0
[  625.532938][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  625.532938][   T10] 
[  625.534908][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  625.535178][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  625.535178][   T10]      dst_init+0x84/0x4a0
[  625.535178][   T10]      dst_alloc+0x97/0x150
[  625.535178][   T10]      ip6_dst_alloc+0x23/0x90
[  625.535178][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  625.535178][   T10]      ip6_pol_route+0x56f/0x840
[  625.535178][   T10]      fib6_rule_lookup+0x456/0x630
[  625.535178][   T10]      ip6_route_input+0x59c/0xa50
[  625.535178][   T10]      ipv6_rcv+0x397/0x810
[  625.535178][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  625.535178][   T10]      process_backlog+0x101/0x620
[  625.535178][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  625.535178][   T10]      net_rx_action+0x495/0xbe0
[  625.535178][   T10]      __do_softirq+0x1b5/0x7f6
[  625.535178][   T10] 
[  625.537098][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  625.537098][   T10]      netdev_get_by_index+0x5e/0x80
[  625.537098][   T10]      fib6_nh_init+0x3d8/0x1580
[  625.537098][   T10]      ip6_route_info_create+0xf18/0x17d0
[  625.537098][   T10]      ip6_route_add+0x1c/0x140
[  625.537098][   T10]      addrconf_prefix_route+0x2a6/0x430
[  625.537098][   T10]      inet6_addr_add+0x4f8/0xa40
[  625.537098][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  625.537098][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  625.537098][   T10]      netlink_rcv_skb+0x130/0x360
[  625.537098][   T10]      netlink_unicast+0x449/0x710
[  625.537098][   T10]      netlink_sendmsg+0x723/0xbe0
[  625.537098][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  625.537098][   T10]      ___sys_sendmsg+0xee/0x170
[  625.537098][   T10]      __sys_sendmsg+0xcd/0x170
[  625.537098][   T10]      do_syscall_64+0xc6/0x1e0
[  625.537098][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  625.537098][   T10] 
[  625.539437][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  625.539437][   T10]      netdev_get_by_index+0x5e/0x80
[  625.539437][   T10]      fib6_nh_init+0x3d8/0x1580
[  625.539437][   T10]      ip6_route_info_create+0xf18/0x17d0
[  625.539437][   T10]      addrconf_f6i_alloc+0x315/0x560
[  625.539437][   T10]      ipv6_add_addr+0x411/0x2000
[  625.539437][   T10]      inet6_addr_add+0x30e/0xa40
[  625.539437][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  625.539437][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  625.539437][   T10]      netlink_rcv_skb+0x130/0x360
[  625.539437][   T10]      netlink_unicast+0x449/0x710
[  625.539437][   T10]      netlink_sendmsg+0x723/0xbe0
[  625.539437][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  625.539437][   T10]      ___sys_sendmsg+0xee/0x170
[  625.539437][   T10]      __sys_sendmsg+0xcd/0x170
[  625.539437][   T10]      do_syscall_64+0xc6/0x1e0
[  625.539437][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  625.539437][   T10] 
[  625.541765][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  625.541765][   T10]      netdev_get_by_index+0x5e/0x80
[  625.541765][   T10]      fib6_nh_init+0x3d8/0x1580
[  625.541765][   T10]      ip6_route_info_create+0xf18/0x17d0
[  625.541765][   T10]      ip6_route_add+0x1c/0x140
[  625.541765][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  625.541765][   T10]      addrconf_add_dev+0xe2/0x170
[  625.541765][   T10]      inet6_addr_add+0x12f/0xa40
[  625.541765][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  625.541765][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  625.541765][   T10]      netlink_rcv_skb+0x130/0x360
[  625.541765][   T10]      netlink_unicast+0x449/0x710
[  625.541765][   T10]      netlink_sendmsg+0x723/0xbe0
[  625.541765][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  625.541765][   T10]      ___sys_sendmsg+0xee/0x170
[  625.541765][   T10]      __sys_sendmsg+0xcd/0x170
[  625.541765][   T10]      do_syscall_64+0xc6/0x1e0
[  625.541765][   T10] 
[  625.544063][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  625.544063][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  625.544063][   T10]      ipv6_find_idev+0x102/0x170
[  625.544063][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  625.544063][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  625.544063][   T10]      netlink_rcv_skb+0x130/0x360
[  625.544063][   T10]      netlink_unicast+0x449/0x710
[  625.544063][   T10]      netlink_sendmsg+0x723/0xbe0
[  625.544063][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  625.544063][   T10]      ___sys_sendmsg+0xee/0x170
[  625.544063][   T10]      __sys_sendmsg+0xcd/0x170
[  625.544063][   T10]      do_syscall_64+0xc6/0x1e0
[  625.544063][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  625.544063][   T10] 
[  625.545877][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  625.545877][   T10]      neigh_parms_alloc+0x1e5/0x510
[  625.545877][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  625.545877][   T10]      ipv6_find_idev+0x102/0x170
[  625.545877][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  625.545877][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  625.545877][   T10]      netlink_rcv_skb+0x130/0x360
[  625.545877][   T10]      netlink_unicast+0x449/0x710
[  625.545877][   T10]      netlink_sendmsg+0x723/0xbe0
[  625.545877][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  625.545877][   T10]      ___sys_sendmsg+0xee/0x170
[  625.545877][   T10]      __sys_sendmsg+0xcd/0x170
[  625.545877][   T10]      do_syscall_64+0xc6/0x1e0
[  625.545877][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  625.545877][   T10] 
[  635.801788][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  635.802221][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  635.802221][   T10]      dst_init+0x84/0x4a0
[  635.802221][   T10]      dst_alloc+0x97/0x150
[  635.802221][   T10]      ip6_dst_alloc+0x23/0x90
[  635.802221][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  635.802221][   T10]      ip6_pol_route+0x56f/0x840
[  635.802221][   T10]      fib6_rule_lookup+0x456/0x630
[  635.802221][   T10]      ip6_route_input+0x59c/0xa50
[  635.802221][   T10]      ipv6_rcv+0x397/0x810
[  635.802221][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  635.802221][   T10]      process_backlog+0x101/0x620
[  635.802221][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  635.802221][   T10]      net_rx_action+0x495/0xbe0
[  635.802221][   T10]      __do_softirq+0x1b5/0x7f6
[  635.802221][   T10] 
[  635.804065][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  635.804065][   T10]      netdev_get_by_index+0x5e/0x80
[  635.804065][   T10]      fib6_nh_init+0x3d8/0x1580
[  635.804065][   T10]      ip6_route_info_create+0xf18/0x17d0
[  635.804065][   T10]      ip6_route_add+0x1c/0x140
[  635.804065][   T10]      addrconf_prefix_route+0x2a6/0x430
[  635.804065][   T10]      inet6_addr_add+0x4f8/0xa40
[  635.804065][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  635.804065][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  635.804065][   T10]      netlink_rcv_skb+0x130/0x360
[  635.804065][   T10]      netlink_unicast+0x449/0x710
[  635.804065][   T10]      netlink_sendmsg+0x723/0xbe0
[  635.804065][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  635.804065][   T10]      ___sys_sendmsg+0xee/0x170
[  635.804065][   T10]      __sys_sendmsg+0xcd/0x170
[  635.804065][   T10]      do_syscall_64+0xc6/0x1e0
[  635.804065][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  635.804065][   T10] 
[  635.806299][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  635.806299][   T10]      netdev_get_by_index+0x5e/0x80
[  635.806299][   T10]      fib6_nh_init+0x3d8/0x1580
[  635.806299][   T10]      ip6_route_info_create+0xf18/0x17d0
[  635.806299][   T10]      addrconf_f6i_alloc+0x315/0x560
[  635.806299][   T10]      ipv6_add_addr+0x411/0x2000
[  635.806299][   T10]      inet6_addr_add+0x30e/0xa40
[  635.806299][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  635.806299][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  635.806299][   T10]      netlink_rcv_skb+0x130/0x360
[  635.806299][   T10]      netlink_unicast+0x449/0x710
[  635.806299][   T10]      netlink_sendmsg+0x723/0xbe0
[  635.806299][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  635.806299][   T10]      ___sys_sendmsg+0xee/0x170
[  635.806299][   T10]      __sys_sendmsg+0xcd/0x170
[  635.806299][   T10]      do_syscall_64+0xc6/0x1e0
[  635.806299][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  635.806299][   T10] 
[  635.808519][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  635.808519][   T10]      netdev_get_by_index+0x5e/0x80
[  635.808519][   T10]      fib6_nh_init+0x3d8/0x1580
[  635.808519][   T10]      ip6_route_info_create+0xf18/0x17d0
[  635.808519][   T10]      ip6_route_add+0x1c/0x140
[  635.808519][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  635.808519][   T10]      addrconf_add_dev+0xe2/0x170
[  635.808519][   T10]      inet6_addr_add+0x12f/0xa40
[  635.808519][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  635.808519][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  635.808519][   T10]      netlink_rcv_skb+0x130/0x360
[  635.808519][   T10]      netlink_unicast+0x449/0x710
[  635.808519][   T10]      netlink_sendmsg+0x723/0xbe0
[  635.808519][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  635.808519][   T10]      ___sys_sendmsg+0xee/0x170
[  635.808519][   T10]      __sys_sendmsg+0xcd/0x170
[  635.808519][   T10]      do_syscall_64+0xc6/0x1e0
[  635.808519][   T10] 
[  635.810732][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  635.810732][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  635.810732][   T10]      ipv6_find_idev+0x102/0x170
[  635.810732][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  635.810732][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  635.810732][   T10]      netlink_rcv_skb+0x130/0x360
[  635.810732][   T10]      netlink_unicast+0x449/0x710
[  635.810732][   T10]      netlink_sendmsg+0x723/0xbe0
[  635.810732][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  635.810732][   T10]      ___sys_sendmsg+0xee/0x170
[  635.810732][   T10]      __sys_sendmsg+0xcd/0x170
[  635.810732][   T10]      do_syscall_64+0xc6/0x1e0
[  635.810732][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  635.810732][   T10] 
[  635.812462][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  635.812462][   T10]      neigh_parms_alloc+0x1e5/0x510
[  635.812462][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  635.812462][   T10]      ipv6_find_idev+0x102/0x170
[  635.812462][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  635.812462][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  635.812462][   T10]      netlink_rcv_skb+0x130/0x360
[  635.812462][   T10]      netlink_unicast+0x449/0x710
[  635.812462][   T10]      netlink_sendmsg+0x723/0xbe0
[  635.812462][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  635.812462][   T10]      ___sys_sendmsg+0xee/0x170
[  635.812462][   T10]      __sys_sendmsg+0xcd/0x170
[  635.812462][   T10]      do_syscall_64+0xc6/0x1e0
[  635.812462][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  635.812462][   T10] 
[  635.814359][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  635.814617][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  635.814617][   T10]      dst_init+0x84/0x4a0
[  635.814617][   T10]      dst_alloc+0x97/0x150
[  635.814617][   T10]      ip6_dst_alloc+0x23/0x90
[  635.814617][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  635.814617][   T10]      ip6_pol_route+0x56f/0x840
[  635.814617][   T10]      fib6_rule_lookup+0x456/0x630
[  635.814617][   T10]      ip6_route_input+0x59c/0xa50
[  635.814617][   T10]      ipv6_rcv+0x397/0x810
[  635.814617][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  635.814617][   T10]      process_backlog+0x101/0x620
[  635.814617][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  635.814617][   T10]      net_rx_action+0x495/0xbe0
[  635.814617][   T10]      __do_softirq+0x1b5/0x7f6
[  635.814617][   T10] 
[  635.816451][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  635.816451][   T10]      netdev_get_by_index+0x5e/0x80
[  635.816451][   T10]      fib6_nh_init+0x3d8/0x1580
[  635.816451][   T10]      ip6_route_info_create+0xf18/0x17d0
[  635.816451][   T10]      ip6_route_add+0x1c/0x140
[  635.816451][   T10]      addrconf_prefix_route+0x2a6/0x430
[  635.816451][   T10]      inet6_addr_add+0x4f8/0xa40
[  635.816451][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  635.816451][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  635.816451][   T10]      netlink_rcv_skb+0x130/0x360
[  635.816451][   T10]      netlink_unicast+0x449/0x710
[  635.816451][   T10]      netlink_sendmsg+0x723/0xbe0
[  635.816451][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  635.816451][   T10]      ___sys_sendmsg+0xee/0x170
[  635.816451][   T10]      __sys_sendmsg+0xcd/0x170
[  635.816451][   T10]      do_syscall_64+0xc6/0x1e0
[  635.816451][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  635.816451][   T10] 
[  635.818696][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  635.818696][   T10]      netdev_get_by_index+0x5e/0x80
[  635.818696][   T10]      fib6_nh_init+0x3d8/0x1580
[  635.818696][   T10]      ip6_route_info_create+0xf18/0x17d0
[  635.818696][   T10]      addrconf_f6i_alloc+0x315/0x560
[  635.818696][   T10]      ipv6_add_addr+0x411/0x2000
[  635.818696][   T10]      inet6_addr_add+0x30e/0xa40
[  635.818696][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  635.818696][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  635.818696][   T10]      netlink_rcv_skb+0x130/0x360
[  635.818696][   T10]      netlink_unicast+0x449/0x710
[  635.818696][   T10]      netlink_sendmsg+0x723/0xbe0
[  635.818696][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  635.818696][   T10]      ___sys_sendmsg+0xee/0x170
[  635.818696][   T10]      __sys_sendmsg+0xcd/0x170
[  635.818696][   T10]      do_syscall_64+0xc6/0x1e0
[  635.818696][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  635.818696][   T10] 
[  635.820950][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  635.820950][   T10]      netdev_get_by_index+0x5e/0x80
[  635.820950][   T10]      fib6_nh_init+0x3d8/0x1580
[  635.820950][   T10]      ip6_route_info_create+0xf18/0x17d0
[  635.820950][   T10]      ip6_route_add+0x1c/0x140
[  635.820950][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  635.820950][   T10]      addrconf_add_dev+0xe2/0x170
[  635.820950][   T10]      inet6_addr_add+0x12f/0xa40
[  635.820950][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  635.820950][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  635.820950][   T10]      netlink_rcv_skb+0x130/0x360
[  635.820950][   T10]      netlink_unicast+0x449/0x710
[  635.820950][   T10]      netlink_sendmsg+0x723/0xbe0
[  635.820950][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  635.820950][   T10]      ___sys_sendmsg+0xee/0x170
[  635.820950][   T10]      __sys_sendmsg+0xcd/0x170
[  635.820950][   T10]      do_syscall_64+0xc6/0x1e0
[  635.820950][   T10] 
[  635.823133][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  635.823133][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  635.823133][   T10]      ipv6_find_idev+0x102/0x170
[  635.823133][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  635.823133][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  635.823133][   T10]      netlink_rcv_skb+0x130/0x360
[  635.823133][   T10]      netlink_unicast+0x449/0x710
[  635.823133][   T10]      netlink_sendmsg+0x723/0xbe0
[  635.823133][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  635.823133][   T10]      ___sys_sendmsg+0xee/0x170
[  635.823133][   T10]      __sys_sendmsg+0xcd/0x170
[  635.823133][   T10]      do_syscall_64+0xc6/0x1e0
[  635.823133][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  635.823133][   T10] 
[  635.824862][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  635.824862][   T10]      neigh_parms_alloc+0x1e5/0x510
[  635.824862][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  635.824862][   T10]      ipv6_find_idev+0x102/0x170
[  635.824862][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  635.824862][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  635.824862][   T10]      netlink_rcv_skb+0x130/0x360
[  635.824862][   T10]      netlink_unicast+0x449/0x710
[  635.824862][   T10]      netlink_sendmsg+0x723/0xbe0
[  635.824862][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  635.824862][   T10]      ___sys_sendmsg+0xee/0x170
[  635.824862][   T10]      __sys_sendmsg+0xcd/0x170
[  635.824862][   T10]      do_syscall_64+0xc6/0x1e0
[  635.824862][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  635.824862][   T10] 
[  646.081777][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  646.082199][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  646.082199][   T10]      dst_init+0x84/0x4a0
[  646.082199][   T10]      dst_alloc+0x97/0x150
[  646.082199][   T10]      ip6_dst_alloc+0x23/0x90
[  646.082199][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  646.082199][   T10]      ip6_pol_route+0x56f/0x840
[  646.082199][   T10]      fib6_rule_lookup+0x456/0x630
[  646.082199][   T10]      ip6_route_input+0x59c/0xa50
[  646.082199][   T10]      ipv6_rcv+0x397/0x810
[  646.082199][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  646.082199][   T10]      process_backlog+0x101/0x620
[  646.082199][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  646.082199][   T10]      net_rx_action+0x495/0xbe0
[  646.082199][   T10]      __do_softirq+0x1b5/0x7f6
[  646.082199][   T10] 
[  646.084054][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  646.084054][   T10]      netdev_get_by_index+0x5e/0x80
[  646.084054][   T10]      fib6_nh_init+0x3d8/0x1580
[  646.084054][   T10]      ip6_route_info_create+0xf18/0x17d0
[  646.084054][   T10]      ip6_route_add+0x1c/0x140
[  646.084054][   T10]      addrconf_prefix_route+0x2a6/0x430
[  646.084054][   T10]      inet6_addr_add+0x4f8/0xa40
[  646.084054][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  646.084054][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  646.084054][   T10]      netlink_rcv_skb+0x130/0x360
[  646.084054][   T10]      netlink_unicast+0x449/0x710
[  646.084054][   T10]      netlink_sendmsg+0x723/0xbe0
[  646.084054][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  646.084054][   T10]      ___sys_sendmsg+0xee/0x170
[  646.084054][   T10]      __sys_sendmsg+0xcd/0x170
[  646.084054][   T10]      do_syscall_64+0xc6/0x1e0
[  646.084054][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  646.084054][   T10] 
[  646.086295][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  646.086295][   T10]      netdev_get_by_index+0x5e/0x80
[  646.086295][   T10]      fib6_nh_init+0x3d8/0x1580
[  646.086295][   T10]      ip6_route_info_create+0xf18/0x17d0
[  646.086295][   T10]      addrconf_f6i_alloc+0x315/0x560
[  646.086295][   T10]      ipv6_add_addr+0x411/0x2000
[  646.086295][   T10]      inet6_addr_add+0x30e/0xa40
[  646.086295][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  646.086295][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  646.086295][   T10]      netlink_rcv_skb+0x130/0x360
[  646.086295][   T10]      netlink_unicast+0x449/0x710
[  646.086295][   T10]      netlink_sendmsg+0x723/0xbe0
[  646.086295][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  646.086295][   T10]      ___sys_sendmsg+0xee/0x170
[  646.086295][   T10]      __sys_sendmsg+0xcd/0x170
[  646.086295][   T10]      do_syscall_64+0xc6/0x1e0
[  646.086295][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  646.086295][   T10] 
[  646.088537][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  646.088537][   T10]      netdev_get_by_index+0x5e/0x80
[  646.088537][   T10]      fib6_nh_init+0x3d8/0x1580
[  646.088537][   T10]      ip6_route_info_create+0xf18/0x17d0
[  646.088537][   T10]      ip6_route_add+0x1c/0x140
[  646.088537][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  646.088537][   T10]      addrconf_add_dev+0xe2/0x170
[  646.088537][   T10]      inet6_addr_add+0x12f/0xa40
[  646.088537][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  646.088537][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  646.088537][   T10]      netlink_rcv_skb+0x130/0x360
[  646.088537][   T10]      netlink_unicast+0x449/0x710
[  646.088537][   T10]      netlink_sendmsg+0x723/0xbe0
[  646.088537][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  646.088537][   T10]      ___sys_sendmsg+0xee/0x170
[  646.088537][   T10]      __sys_sendmsg+0xcd/0x170
[  646.088537][   T10]      do_syscall_64+0xc6/0x1e0
[  646.088537][   T10] 
[  646.090746][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  646.090746][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  646.090746][   T10]      ipv6_find_idev+0x102/0x170
[  646.090746][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  646.090746][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  646.090746][   T10]      netlink_rcv_skb+0x130/0x360
[  646.090746][   T10]      netlink_unicast+0x449/0x710
[  646.090746][   T10]      netlink_sendmsg+0x723/0xbe0
[  646.090746][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  646.090746][   T10]      ___sys_sendmsg+0xee/0x170
[  646.090746][   T10]      __sys_sendmsg+0xcd/0x170
[  646.090746][   T10]      do_syscall_64+0xc6/0x1e0
[  646.090746][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  646.090746][   T10] 
[  646.092637][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  646.092637][   T10]      neigh_parms_alloc+0x1e5/0x510
[  646.092637][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  646.092637][   T10]      ipv6_find_idev+0x102/0x170
[  646.092637][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  646.092637][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  646.092637][   T10]      netlink_rcv_skb+0x130/0x360
[  646.092637][   T10]      netlink_unicast+0x449/0x710
[  646.092637][   T10]      netlink_sendmsg+0x723/0xbe0
[  646.092637][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  646.092637][   T10]      ___sys_sendmsg+0xee/0x170
[  646.092637][   T10]      __sys_sendmsg+0xcd/0x170
[  646.092637][   T10]      do_syscall_64+0xc6/0x1e0
[  646.092637][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  646.092637][   T10] 
[  646.094618][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  646.095272][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  646.095272][   T10]      dst_init+0x84/0x4a0
[  646.095272][   T10]      dst_alloc+0x97/0x150
[  646.095272][   T10]      ip6_dst_alloc+0x23/0x90
[  646.095272][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  646.095272][   T10]      ip6_pol_route+0x56f/0x840
[  646.095272][   T10]      fib6_rule_lookup+0x456/0x630
[  646.095272][   T10]      ip6_route_input+0x59c/0xa50
[  646.095272][   T10]      ipv6_rcv+0x397/0x810
[  646.095272][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  646.095272][   T10]      process_backlog+0x101/0x620
[  646.095272][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  646.095272][   T10]      net_rx_action+0x495/0xbe0
[  646.095272][   T10]      __do_softirq+0x1b5/0x7f6
[  646.095272][   T10] 
[  646.097191][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  646.097191][   T10]      netdev_get_by_index+0x5e/0x80
[  646.097191][   T10]      fib6_nh_init+0x3d8/0x1580
[  646.097191][   T10]      ip6_route_info_create+0xf18/0x17d0
[  646.097191][   T10]      ip6_route_add+0x1c/0x140
[  646.097191][   T10]      addrconf_prefix_route+0x2a6/0x430
[  646.097191][   T10]      inet6_addr_add+0x4f8/0xa40
[  646.097191][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  646.097191][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  646.097191][   T10]      netlink_rcv_skb+0x130/0x360
[  646.097191][   T10]      netlink_unicast+0x449/0x710
[  646.097191][   T10]      netlink_sendmsg+0x723/0xbe0
[  646.097191][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  646.097191][   T10]      ___sys_sendmsg+0xee/0x170
[  646.097191][   T10]      __sys_sendmsg+0xcd/0x170
[  646.097191][   T10]      do_syscall_64+0xc6/0x1e0
[  646.097191][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  646.097191][   T10] 
[  646.099538][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  646.099538][   T10]      netdev_get_by_index+0x5e/0x80
[  646.099538][   T10]      fib6_nh_init+0x3d8/0x1580
[  646.099538][   T10]      ip6_route_info_create+0xf18/0x17d0
[  646.099538][   T10]      addrconf_f6i_alloc+0x315/0x560
[  646.099538][   T10]      ipv6_add_addr+0x411/0x2000
[  646.099538][   T10]      inet6_addr_add+0x30e/0xa40
[  646.099538][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  646.099538][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  646.099538][   T10]      netlink_rcv_skb+0x130/0x360
[  646.099538][   T10]      netlink_unicast+0x449/0x710
[  646.099538][   T10]      netlink_sendmsg+0x723/0xbe0
[  646.099538][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  646.099538][   T10]      ___sys_sendmsg+0xee/0x170
[  646.099538][   T10]      __sys_sendmsg+0xcd/0x170
[  646.099538][   T10]      do_syscall_64+0xc6/0x1e0
[  646.099538][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  646.099538][   T10] 
[  646.102008][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  646.102008][   T10]      netdev_get_by_index+0x5e/0x80
[  646.102008][   T10]      fib6_nh_init+0x3d8/0x1580
[  646.102008][   T10]      ip6_route_info_create+0xf18/0x17d0
[  646.102008][   T10]      ip6_route_add+0x1c/0x140
[  646.102008][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  646.102008][   T10]      addrconf_add_dev+0xe2/0x170
[  646.102008][   T10]      inet6_addr_add+0x12f/0xa40
[  646.102008][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  646.102008][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  646.102008][   T10]      netlink_rcv_skb+0x130/0x360
[  646.102008][   T10]      netlink_unicast+0x449/0x710
[  646.102008][   T10]      netlink_sendmsg+0x723/0xbe0
[  646.102008][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  646.102008][   T10]      ___sys_sendmsg+0xee/0x170
[  646.102008][   T10]      __sys_sendmsg+0xcd/0x170
[  646.102008][   T10]      do_syscall_64+0xc6/0x1e0
[  646.102008][   T10] 
[  646.104866][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  646.104866][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  646.104866][   T10]      ipv6_find_idev+0x102/0x170
[  646.104866][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  646.104866][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  646.104866][   T10]      netlink_rcv_skb+0x130/0x360
[  646.104866][   T10]      netlink_unicast+0x449/0x710
[  646.104866][   T10]      netlink_sendmsg+0x723/0xbe0
[  646.104866][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  646.104866][   T10]      ___sys_sendmsg+0xee/0x170
[  646.104866][   T10]      __sys_sendmsg+0xcd/0x170
[  646.104866][   T10]      do_syscall_64+0xc6/0x1e0
[  646.104866][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  646.104866][   T10] 
[  646.107521][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  646.107521][   T10]      neigh_parms_alloc+0x1e5/0x510
[  646.107521][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  646.107521][   T10]      ipv6_find_idev+0x102/0x170
[  646.107521][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  646.107521][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  646.107521][   T10]      netlink_rcv_skb+0x130/0x360
[  646.107521][   T10]      netlink_unicast+0x449/0x710
[  646.107521][   T10]      netlink_sendmsg+0x723/0xbe0
[  646.107521][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  646.107521][   T10]      ___sys_sendmsg+0xee/0x170
[  646.107521][   T10]      __sys_sendmsg+0xcd/0x170
[  646.107521][   T10]      do_syscall_64+0xc6/0x1e0
[  646.107521][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  646.107521][   T10] 
[  656.361851][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  656.362319][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  656.362319][   T10]      dst_init+0x84/0x4a0
[  656.362319][   T10]      dst_alloc+0x97/0x150
[  656.362319][   T10]      ip6_dst_alloc+0x23/0x90
[  656.362319][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  656.362319][   T10]      ip6_pol_route+0x56f/0x840
[  656.362319][   T10]      fib6_rule_lookup+0x456/0x630
[  656.362319][   T10]      ip6_route_input+0x59c/0xa50
[  656.362319][   T10]      ipv6_rcv+0x397/0x810
[  656.362319][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  656.362319][   T10]      process_backlog+0x101/0x620
[  656.362319][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  656.362319][   T10]      net_rx_action+0x495/0xbe0
[  656.362319][   T10]      __do_softirq+0x1b5/0x7f6
[  656.362319][   T10] 
[  656.364264][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  656.364264][   T10]      netdev_get_by_index+0x5e/0x80
[  656.364264][   T10]      fib6_nh_init+0x3d8/0x1580
[  656.364264][   T10]      ip6_route_info_create+0xf18/0x17d0
[  656.364264][   T10]      ip6_route_add+0x1c/0x140
[  656.364264][   T10]      addrconf_prefix_route+0x2a6/0x430
[  656.364264][   T10]      inet6_addr_add+0x4f8/0xa40
[  656.364264][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  656.364264][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  656.364264][   T10]      netlink_rcv_skb+0x130/0x360
[  656.364264][   T10]      netlink_unicast+0x449/0x710
[  656.364264][   T10]      netlink_sendmsg+0x723/0xbe0
[  656.364264][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  656.364264][   T10]      ___sys_sendmsg+0xee/0x170
[  656.364264][   T10]      __sys_sendmsg+0xcd/0x170
[  656.364264][   T10]      do_syscall_64+0xc6/0x1e0
[  656.364264][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  656.364264][   T10] 
[  656.366619][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  656.366619][   T10]      netdev_get_by_index+0x5e/0x80
[  656.366619][   T10]      fib6_nh_init+0x3d8/0x1580
[  656.366619][   T10]      ip6_route_info_create+0xf18/0x17d0
[  656.366619][   T10]      addrconf_f6i_alloc+0x315/0x560
[  656.366619][   T10]      ipv6_add_addr+0x411/0x2000
[  656.366619][   T10]      inet6_addr_add+0x30e/0xa40
[  656.366619][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  656.366619][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  656.366619][   T10]      netlink_rcv_skb+0x130/0x360
[  656.366619][   T10]      netlink_unicast+0x449/0x710
[  656.366619][   T10]      netlink_sendmsg+0x723/0xbe0
[  656.366619][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  656.366619][   T10]      ___sys_sendmsg+0xee/0x170
[  656.366619][   T10]      __sys_sendmsg+0xcd/0x170
[  656.366619][   T10]      do_syscall_64+0xc6/0x1e0
[  656.366619][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  656.366619][   T10] 
[  656.369259][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  656.369259][   T10]      netdev_get_by_index+0x5e/0x80
[  656.369259][   T10]      fib6_nh_init+0x3d8/0x1580
[  656.369259][   T10]      ip6_route_info_create+0xf18/0x17d0
[  656.369259][   T10]      ip6_route_add+0x1c/0x140
[  656.369259][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  656.369259][   T10]      addrconf_add_dev+0xe2/0x170
[  656.369259][   T10]      inet6_addr_add+0x12f/0xa40
[  656.369259][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  656.369259][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  656.369259][   T10]      netlink_rcv_skb+0x130/0x360
[  656.369259][   T10]      netlink_unicast+0x449/0x710
[  656.369259][   T10]      netlink_sendmsg+0x723/0xbe0
[  656.369259][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  656.369259][   T10]      ___sys_sendmsg+0xee/0x170
[  656.369259][   T10]      __sys_sendmsg+0xcd/0x170
[  656.369259][   T10]      do_syscall_64+0xc6/0x1e0
[  656.369259][   T10] 
[  656.371575][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  656.371575][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  656.371575][   T10]      ipv6_find_idev+0x102/0x170
[  656.371575][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  656.371575][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  656.371575][   T10]      netlink_rcv_skb+0x130/0x360
[  656.371575][   T10]      netlink_unicast+0x449/0x710
[  656.371575][   T10]      netlink_sendmsg+0x723/0xbe0
[  656.371575][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  656.371575][   T10]      ___sys_sendmsg+0xee/0x170
[  656.371575][   T10]      __sys_sendmsg+0xcd/0x170
[  656.371575][   T10]      do_syscall_64+0xc6/0x1e0
[  656.371575][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  656.371575][   T10] 
[  656.373377][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  656.373377][   T10]      neigh_parms_alloc+0x1e5/0x510
[  656.373377][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  656.373377][   T10]      ipv6_find_idev+0x102/0x170
[  656.373377][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  656.373377][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  656.373377][   T10]      netlink_rcv_skb+0x130/0x360
[  656.373377][   T10]      netlink_unicast+0x449/0x710
[  656.373377][   T10]      netlink_sendmsg+0x723/0xbe0
[  656.373377][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  656.373377][   T10]      ___sys_sendmsg+0xee/0x170
[  656.373377][   T10]      __sys_sendmsg+0xcd/0x170
[  656.373377][   T10]      do_syscall_64+0xc6/0x1e0
[  656.373377][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  656.373377][   T10] 
[  656.375355][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  656.375625][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  656.375625][   T10]      dst_init+0x84/0x4a0
[  656.375625][   T10]      dst_alloc+0x97/0x150
[  656.375625][   T10]      ip6_dst_alloc+0x23/0x90
[  656.375625][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  656.375625][   T10]      ip6_pol_route+0x56f/0x840
[  656.375625][   T10]      fib6_rule_lookup+0x456/0x630
[  656.375625][   T10]      ip6_route_input+0x59c/0xa50
[  656.375625][   T10]      ipv6_rcv+0x397/0x810
[  656.375625][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  656.375625][   T10]      process_backlog+0x101/0x620
[  656.375625][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  656.375625][   T10]      net_rx_action+0x495/0xbe0
[  656.375625][   T10]      __do_softirq+0x1b5/0x7f6
[  656.375625][   T10] 
[  656.377542][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  656.377542][   T10]      netdev_get_by_index+0x5e/0x80
[  656.377542][   T10]      fib6_nh_init+0x3d8/0x1580
[  656.377542][   T10]      ip6_route_info_create+0xf18/0x17d0
[  656.377542][   T10]      ip6_route_add+0x1c/0x140
[  656.377542][   T10]      addrconf_prefix_route+0x2a6/0x430
[  656.377542][   T10]      inet6_addr_add+0x4f8/0xa40
[  656.377542][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  656.377542][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  656.377542][   T10]      netlink_rcv_skb+0x130/0x360
[  656.377542][   T10]      netlink_unicast+0x449/0x710
[  656.377542][   T10]      netlink_sendmsg+0x723/0xbe0
[  656.377542][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  656.377542][   T10]      ___sys_sendmsg+0xee/0x170
[  656.377542][   T10]      __sys_sendmsg+0xcd/0x170
[  656.377542][   T10]      do_syscall_64+0xc6/0x1e0
[  656.377542][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  656.377542][   T10] 
[  656.379874][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  656.379874][   T10]      netdev_get_by_index+0x5e/0x80
[  656.379874][   T10]      fib6_nh_init+0x3d8/0x1580
[  656.379874][   T10]      ip6_route_info_create+0xf18/0x17d0
[  656.379874][   T10]      addrconf_f6i_alloc+0x315/0x560
[  656.379874][   T10]      ipv6_add_addr+0x411/0x2000
[  656.379874][   T10]      inet6_addr_add+0x30e/0xa40
[  656.379874][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  656.379874][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  656.379874][   T10]      netlink_rcv_skb+0x130/0x360
[  656.379874][   T10]      netlink_unicast+0x449/0x710
[  656.379874][   T10]      netlink_sendmsg+0x723/0xbe0
[  656.379874][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  656.379874][   T10]      ___sys_sendmsg+0xee/0x170
[  656.379874][   T10]      __sys_sendmsg+0xcd/0x170
[  656.379874][   T10]      do_syscall_64+0xc6/0x1e0
[  656.379874][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  656.379874][   T10] 
[  656.382220][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  656.382220][   T10]      netdev_get_by_index+0x5e/0x80
[  656.382220][   T10]      fib6_nh_init+0x3d8/0x1580
[  656.382220][   T10]      ip6_route_info_create+0xf18/0x17d0
[  656.382220][   T10]      ip6_route_add+0x1c/0x140
[  656.382220][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  656.382220][   T10]      addrconf_add_dev+0xe2/0x170
[  656.382220][   T10]      inet6_addr_add+0x12f/0xa40
[  656.382220][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  656.382220][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  656.382220][   T10]      netlink_rcv_skb+0x130/0x360
[  656.382220][   T10]      netlink_unicast+0x449/0x710
[  656.382220][   T10]      netlink_sendmsg+0x723/0xbe0
[  656.382220][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  656.382220][   T10]      ___sys_sendmsg+0xee/0x170
[  656.382220][   T10]      __sys_sendmsg+0xcd/0x170
[  656.382220][   T10]      do_syscall_64+0xc6/0x1e0
[  656.382220][   T10] 
[  656.384888][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  656.384888][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  656.384888][   T10]      ipv6_find_idev+0x102/0x170
[  656.384888][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  656.384888][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  656.384888][   T10]      netlink_rcv_skb+0x130/0x360
[  656.384888][   T10]      netlink_unicast+0x449/0x710
[  656.384888][   T10]      netlink_sendmsg+0x723/0xbe0
[  656.384888][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  656.384888][   T10]      ___sys_sendmsg+0xee/0x170
[  656.384888][   T10]      __sys_sendmsg+0xcd/0x170
[  656.384888][   T10]      do_syscall_64+0xc6/0x1e0
[  656.384888][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  656.384888][   T10] 
[  656.386859][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  656.386859][   T10]      neigh_parms_alloc+0x1e5/0x510
[  656.386859][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  656.386859][   T10]      ipv6_find_idev+0x102/0x170
[  656.386859][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  656.386859][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  656.386859][   T10]      netlink_rcv_skb+0x130/0x360
[  656.386859][   T10]      netlink_unicast+0x449/0x710
[  656.386859][   T10]      netlink_sendmsg+0x723/0xbe0
[  656.386859][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  656.386859][   T10]      ___sys_sendmsg+0xee/0x170
[  656.386859][   T10]      __sys_sendmsg+0xcd/0x170
[  656.386859][   T10]      do_syscall_64+0xc6/0x1e0
[  656.386859][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  656.386859][   T10] 
[  666.409778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  666.410273][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  666.410273][   T10]      dst_init+0x84/0x4a0
[  666.410273][   T10]      dst_alloc+0x97/0x150
[  666.410273][   T10]      ip6_dst_alloc+0x23/0x90
[  666.410273][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  666.410273][   T10]      ip6_pol_route+0x56f/0x840
[  666.410273][   T10]      fib6_rule_lookup+0x456/0x630
[  666.410273][   T10]      ip6_route_input+0x59c/0xa50
[  666.410273][   T10]      ipv6_rcv+0x397/0x810
[  666.410273][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  666.410273][   T10]      process_backlog+0x101/0x620
[  666.410273][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  666.410273][   T10]      net_rx_action+0x495/0xbe0
[  666.410273][   T10]      __do_softirq+0x1b5/0x7f6
[  666.410273][   T10] 
[  666.412290][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  666.412290][   T10]      netdev_get_by_index+0x5e/0x80
[  666.412290][   T10]      fib6_nh_init+0x3d8/0x1580
[  666.412290][   T10]      ip6_route_info_create+0xf18/0x17d0
[  666.412290][   T10]      ip6_route_add+0x1c/0x140
[  666.412290][   T10]      addrconf_prefix_route+0x2a6/0x430
[  666.412290][   T10]      inet6_addr_add+0x4f8/0xa40
[  666.412290][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  666.412290][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  666.412290][   T10]      netlink_rcv_skb+0x130/0x360
[  666.412290][   T10]      netlink_unicast+0x449/0x710
[  666.412290][   T10]      netlink_sendmsg+0x723/0xbe0
[  666.412290][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  666.412290][   T10]      ___sys_sendmsg+0xee/0x170
[  666.412290][   T10]      __sys_sendmsg+0xcd/0x170
[  666.412290][   T10]      do_syscall_64+0xc6/0x1e0
[  666.412290][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  666.412290][   T10] 
[  666.414694][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  666.414694][   T10]      netdev_get_by_index+0x5e/0x80
[  666.414694][   T10]      fib6_nh_init+0x3d8/0x1580
[  666.414694][   T10]      ip6_route_info_create+0xf18/0x17d0
[  666.414694][   T10]      addrconf_f6i_alloc+0x315/0x560
[  666.414694][   T10]      ipv6_add_addr+0x411/0x2000
[  666.414694][   T10]      inet6_addr_add+0x30e/0xa40
[  666.414694][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  666.414694][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  666.414694][   T10]      netlink_rcv_skb+0x130/0x360
[  666.414694][   T10]      netlink_unicast+0x449/0x710
[  666.414694][   T10]      netlink_sendmsg+0x723/0xbe0
[  666.414694][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  666.414694][   T10]      ___sys_sendmsg+0xee/0x170
[  666.414694][   T10]      __sys_sendmsg+0xcd/0x170
[  666.414694][   T10]      do_syscall_64+0xc6/0x1e0
[  666.414694][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  666.414694][   T10] 
[  666.417129][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  666.417129][   T10]      netdev_get_by_index+0x5e/0x80
[  666.417129][   T10]      fib6_nh_init+0x3d8/0x1580
[  666.417129][   T10]      ip6_route_info_create+0xf18/0x17d0
[  666.417129][   T10]      ip6_route_add+0x1c/0x140
[  666.417129][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  666.417129][   T10]      addrconf_add_dev+0xe2/0x170
[  666.417129][   T10]      inet6_addr_add+0x12f/0xa40
[  666.417129][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  666.417129][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  666.417129][   T10]      netlink_rcv_skb+0x130/0x360
[  666.417129][   T10]      netlink_unicast+0x449/0x710
[  666.417129][   T10]      netlink_sendmsg+0x723/0xbe0
[  666.417129][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  666.417129][   T10]      ___sys_sendmsg+0xee/0x170
[  666.417129][   T10]      __sys_sendmsg+0xcd/0x170
[  666.417129][   T10]      do_syscall_64+0xc6/0x1e0
[  666.417129][   T10] 
[  666.419504][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  666.419504][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  666.419504][   T10]      ipv6_find_idev+0x102/0x170
[  666.419504][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  666.419504][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  666.419504][   T10]      netlink_rcv_skb+0x130/0x360
[  666.419504][   T10]      netlink_unicast+0x449/0x710
[  666.419504][   T10]      netlink_sendmsg+0x723/0xbe0
[  666.419504][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  666.419504][   T10]      ___sys_sendmsg+0xee/0x170
[  666.419504][   T10]      __sys_sendmsg+0xcd/0x170
[  666.419504][   T10]      do_syscall_64+0xc6/0x1e0
[  666.419504][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  666.419504][   T10] 
[  666.421346][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  666.421346][   T10]      neigh_parms_alloc+0x1e5/0x510
[  666.421346][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  666.421346][   T10]      ipv6_find_idev+0x102/0x170
[  666.421346][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  666.421346][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  666.421346][   T10]      netlink_rcv_skb+0x130/0x360
[  666.421346][   T10]      netlink_unicast+0x449/0x710
[  666.421346][   T10]      netlink_sendmsg+0x723/0xbe0
[  666.421346][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  666.421346][   T10]      ___sys_sendmsg+0xee/0x170
[  666.421346][   T10]      __sys_sendmsg+0xcd/0x170
[  666.421346][   T10]      do_syscall_64+0xc6/0x1e0
[  666.421346][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  666.421346][   T10] 
[  666.423384][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  666.423669][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  666.423669][   T10]      dst_init+0x84/0x4a0
[  666.423669][   T10]      dst_alloc+0x97/0x150
[  666.423669][   T10]      ip6_dst_alloc+0x23/0x90
[  666.423669][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  666.423669][   T10]      ip6_pol_route+0x56f/0x840
[  666.423669][   T10]      fib6_rule_lookup+0x456/0x630
[  666.423669][   T10]      ip6_route_input+0x59c/0xa50
[  666.423669][   T10]      ipv6_rcv+0x397/0x810
[  666.423669][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  666.423669][   T10]      process_backlog+0x101/0x620
[  666.423669][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  666.423669][   T10]      net_rx_action+0x495/0xbe0
[  666.423669][   T10]      __do_softirq+0x1b5/0x7f6
[  666.423669][   T10] 
[  666.426197][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  666.426197][   T10]      netdev_get_by_index+0x5e/0x80
[  666.426197][   T10]      fib6_nh_init+0x3d8/0x1580
[  666.426197][   T10]      ip6_route_info_create+0xf18/0x17d0
[  666.426197][   T10]      ip6_route_add+0x1c/0x140
[  666.426197][   T10]      addrconf_prefix_route+0x2a6/0x430
[  666.426197][   T10]      inet6_addr_add+0x4f8/0xa40
[  666.426197][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  666.426197][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  666.426197][   T10]      netlink_rcv_skb+0x130/0x360
[  666.426197][   T10]      netlink_unicast+0x449/0x710
[  666.426197][   T10]      netlink_sendmsg+0x723/0xbe0
[  666.426197][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  666.426197][   T10]      ___sys_sendmsg+0xee/0x170
[  666.426197][   T10]      __sys_sendmsg+0xcd/0x170
[  666.426197][   T10]      do_syscall_64+0xc6/0x1e0
[  666.426197][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  666.426197][   T10] 
[  666.429738][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  666.429738][   T10]      netdev_get_by_index+0x5e/0x80
[  666.429738][   T10]      fib6_nh_init+0x3d8/0x1580
[  666.429738][   T10]      ip6_route_info_create+0xf18/0x17d0
[  666.429738][   T10]      addrconf_f6i_alloc+0x315/0x560
[  666.429738][   T10]      ipv6_add_addr+0x411/0x2000
[  666.429738][   T10]      inet6_addr_add+0x30e/0xa40
[  666.429738][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  666.429738][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  666.429738][   T10]      netlink_rcv_skb+0x130/0x360
[  666.429738][   T10]      netlink_unicast+0x449/0x710
[  666.429738][   T10]      netlink_sendmsg+0x723/0xbe0
[  666.429738][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  666.429738][   T10]      ___sys_sendmsg+0xee/0x170
[  666.429738][   T10]      __sys_sendmsg+0xcd/0x170
[  666.429738][   T10]      do_syscall_64+0xc6/0x1e0
[  666.429738][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  666.429738][   T10] 
[  666.433246][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  666.433246][   T10]      netdev_get_by_index+0x5e/0x80
[  666.433246][   T10]      fib6_nh_init+0x3d8/0x1580
[  666.433246][   T10]      ip6_route_info_create+0xf18/0x17d0
[  666.433246][   T10]      ip6_route_add+0x1c/0x140
[  666.433246][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  666.433246][   T10]      addrconf_add_dev+0xe2/0x170
[  666.433246][   T10]      inet6_addr_add+0x12f/0xa40
[  666.433246][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  666.433246][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  666.433246][   T10]      netlink_rcv_skb+0x130/0x360
[  666.433246][   T10]      netlink_unicast+0x449/0x710
[  666.433246][   T10]      netlink_sendmsg+0x723/0xbe0
[  666.433246][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  666.433246][   T10]      ___sys_sendmsg+0xee/0x170
[  666.433246][   T10]      __sys_sendmsg+0xcd/0x170
[  666.433246][   T10]      do_syscall_64+0xc6/0x1e0
[  666.433246][   T10] 
[  666.436675][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  666.436675][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  666.436675][   T10]      ipv6_find_idev+0x102/0x170
[  666.436675][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  666.436675][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  666.436675][   T10]      netlink_rcv_skb+0x130/0x360
[  666.436675][   T10]      netlink_unicast+0x449/0x710
[  666.436675][   T10]      netlink_sendmsg+0x723/0xbe0
[  666.436675][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  666.436675][   T10]      ___sys_sendmsg+0xee/0x170
[  666.436675][   T10]      __sys_sendmsg+0xcd/0x170
[  666.436675][   T10]      do_syscall_64+0xc6/0x1e0
[  666.436675][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  666.436675][   T10] 
[  666.439376][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  666.439376][   T10]      neigh_parms_alloc+0x1e5/0x510
[  666.439376][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  666.439376][   T10]      ipv6_find_idev+0x102/0x170
[  666.439376][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  666.439376][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  666.439376][   T10]      netlink_rcv_skb+0x130/0x360
[  666.439376][   T10]      netlink_unicast+0x449/0x710
[  666.439376][   T10]      netlink_sendmsg+0x723/0xbe0
[  666.439376][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  666.439376][   T10]      ___sys_sendmsg+0xee/0x170
[  666.439376][   T10]      __sys_sendmsg+0xcd/0x170
[  666.439376][   T10]      do_syscall_64+0xc6/0x1e0
[  666.439376][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  666.439376][   T10] 
[  676.681789][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  676.682194][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  676.682194][   T10]      dst_init+0x84/0x4a0
[  676.682194][   T10]      dst_alloc+0x97/0x150
[  676.682194][   T10]      ip6_dst_alloc+0x23/0x90
[  676.682194][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  676.682194][   T10]      ip6_pol_route+0x56f/0x840
[  676.682194][   T10]      fib6_rule_lookup+0x456/0x630
[  676.682194][   T10]      ip6_route_input+0x59c/0xa50
[  676.682194][   T10]      ipv6_rcv+0x397/0x810
[  676.682194][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  676.682194][   T10]      process_backlog+0x101/0x620
[  676.682194][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  676.682194][   T10]      net_rx_action+0x495/0xbe0
[  676.682194][   T10]      __do_softirq+0x1b5/0x7f6
[  676.682194][   T10] 
[  676.684189][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  676.684189][   T10]      netdev_get_by_index+0x5e/0x80
[  676.684189][   T10]      fib6_nh_init+0x3d8/0x1580
[  676.684189][   T10]      ip6_route_info_create+0xf18/0x17d0
[  676.684189][   T10]      ip6_route_add+0x1c/0x140
[  676.684189][   T10]      addrconf_prefix_route+0x2a6/0x430
[  676.684189][   T10]      inet6_addr_add+0x4f8/0xa40
[  676.684189][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  676.684189][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  676.684189][   T10]      netlink_rcv_skb+0x130/0x360
[  676.684189][   T10]      netlink_unicast+0x449/0x710
[  676.684189][   T10]      netlink_sendmsg+0x723/0xbe0
[  676.684189][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  676.684189][   T10]      ___sys_sendmsg+0xee/0x170
[  676.684189][   T10]      __sys_sendmsg+0xcd/0x170
[  676.684189][   T10]      do_syscall_64+0xc6/0x1e0
[  676.684189][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  676.684189][   T10] 
[  676.686596][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  676.686596][   T10]      netdev_get_by_index+0x5e/0x80
[  676.686596][   T10]      fib6_nh_init+0x3d8/0x1580
[  676.686596][   T10]      ip6_route_info_create+0xf18/0x17d0
[  676.686596][   T10]      addrconf_f6i_alloc+0x315/0x560
[  676.686596][   T10]      ipv6_add_addr+0x411/0x2000
[  676.686596][   T10]      inet6_addr_add+0x30e/0xa40
[  676.686596][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  676.686596][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  676.686596][   T10]      netlink_rcv_skb+0x130/0x360
[  676.686596][   T10]      netlink_unicast+0x449/0x710
[  676.686596][   T10]      netlink_sendmsg+0x723/0xbe0
[  676.686596][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  676.686596][   T10]      ___sys_sendmsg+0xee/0x170
[  676.686596][   T10]      __sys_sendmsg+0xcd/0x170
[  676.686596][   T10]      do_syscall_64+0xc6/0x1e0
[  676.686596][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  676.686596][   T10] 
[  676.689003][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  676.689003][   T10]      netdev_get_by_index+0x5e/0x80
[  676.689003][   T10]      fib6_nh_init+0x3d8/0x1580
[  676.689003][   T10]      ip6_route_info_create+0xf18/0x17d0
[  676.689003][   T10]      ip6_route_add+0x1c/0x140
[  676.689003][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  676.689003][   T10]      addrconf_add_dev+0xe2/0x170
[  676.689003][   T10]      inet6_addr_add+0x12f/0xa40
[  676.689003][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  676.689003][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  676.689003][   T10]      netlink_rcv_skb+0x130/0x360
[  676.689003][   T10]      netlink_unicast+0x449/0x710
[  676.689003][   T10]      netlink_sendmsg+0x723/0xbe0
[  676.689003][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  676.689003][   T10]      ___sys_sendmsg+0xee/0x170
[  676.689003][   T10]      __sys_sendmsg+0xcd/0x170
[  676.689003][   T10]      do_syscall_64+0xc6/0x1e0
[  676.689003][   T10] 
[  676.691358][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  676.691358][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  676.691358][   T10]      ipv6_find_idev+0x102/0x170
[  676.691358][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  676.691358][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  676.691358][   T10]      netlink_rcv_skb+0x130/0x360
[  676.691358][   T10]      netlink_unicast+0x449/0x710
[  676.691358][   T10]      netlink_sendmsg+0x723/0xbe0
[  676.691358][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  676.691358][   T10]      ___sys_sendmsg+0xee/0x170
[  676.691358][   T10]      __sys_sendmsg+0xcd/0x170
[  676.691358][   T10]      do_syscall_64+0xc6/0x1e0
[  676.691358][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  676.691358][   T10] 
[  676.693202][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  676.693202][   T10]      neigh_parms_alloc+0x1e5/0x510
[  676.693202][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  676.693202][   T10]      ipv6_find_idev+0x102/0x170
[  676.693202][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  676.693202][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  676.693202][   T10]      netlink_rcv_skb+0x130/0x360
[  676.693202][   T10]      netlink_unicast+0x449/0x710
[  676.693202][   T10]      netlink_sendmsg+0x723/0xbe0
[  676.693202][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  676.693202][   T10]      ___sys_sendmsg+0xee/0x170
[  676.693202][   T10]      __sys_sendmsg+0xcd/0x170
[  676.693202][   T10]      do_syscall_64+0xc6/0x1e0
[  676.693202][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  676.693202][   T10] 
[  676.695247][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  676.695528][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  676.695528][   T10]      dst_init+0x84/0x4a0
[  676.695528][   T10]      dst_alloc+0x97/0x150
[  676.695528][   T10]      ip6_dst_alloc+0x23/0x90
[  676.695528][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  676.695528][   T10]      ip6_pol_route+0x56f/0x840
[  676.695528][   T10]      fib6_rule_lookup+0x456/0x630
[  676.695528][   T10]      ip6_route_input+0x59c/0xa50
[  676.695528][   T10]      ipv6_rcv+0x397/0x810
[  676.695528][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  676.695528][   T10]      process_backlog+0x101/0x620
[  676.695528][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  676.695528][   T10]      net_rx_action+0x495/0xbe0
[  676.695528][   T10]      __do_softirq+0x1b5/0x7f6
[  676.695528][   T10] 
[  676.697487][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  676.697487][   T10]      netdev_get_by_index+0x5e/0x80
[  676.697487][   T10]      fib6_nh_init+0x3d8/0x1580
[  676.697487][   T10]      ip6_route_info_create+0xf18/0x17d0
[  676.697487][   T10]      ip6_route_add+0x1c/0x140
[  676.697487][   T10]      addrconf_prefix_route+0x2a6/0x430
[  676.697487][   T10]      inet6_addr_add+0x4f8/0xa40
[  676.697487][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  676.697487][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  676.697487][   T10]      netlink_rcv_skb+0x130/0x360
[  676.697487][   T10]      netlink_unicast+0x449/0x710
[  676.697487][   T10]      netlink_sendmsg+0x723/0xbe0
[  676.697487][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  676.697487][   T10]      ___sys_sendmsg+0xee/0x170
[  676.697487][   T10]      __sys_sendmsg+0xcd/0x170
[  676.697487][   T10]      do_syscall_64+0xc6/0x1e0
[  676.697487][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  676.697487][   T10] 
[  676.699896][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  676.699896][   T10]      netdev_get_by_index+0x5e/0x80
[  676.699896][   T10]      fib6_nh_init+0x3d8/0x1580
[  676.699896][   T10]      ip6_route_info_create+0xf18/0x17d0
[  676.699896][   T10]      addrconf_f6i_alloc+0x315/0x560
[  676.699896][   T10]      ipv6_add_addr+0x411/0x2000
[  676.699896][   T10]      inet6_addr_add+0x30e/0xa40
[  676.699896][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  676.699896][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  676.699896][   T10]      netlink_rcv_skb+0x130/0x360
[  676.699896][   T10]      netlink_unicast+0x449/0x710
[  676.699896][   T10]      netlink_sendmsg+0x723/0xbe0
[  676.699896][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  676.699896][   T10]      ___sys_sendmsg+0xee/0x170
[  676.699896][   T10]      __sys_sendmsg+0xcd/0x170
[  676.699896][   T10]      do_syscall_64+0xc6/0x1e0
[  676.699896][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  676.699896][   T10] 
[  676.702300][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  676.702300][   T10]      netdev_get_by_index+0x5e/0x80
[  676.702300][   T10]      fib6_nh_init+0x3d8/0x1580
[  676.702300][   T10]      ip6_route_info_create+0xf18/0x17d0
[  676.702300][   T10]      ip6_route_add+0x1c/0x140
[  676.702300][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  676.702300][   T10]      addrconf_add_dev+0xe2/0x170
[  676.702300][   T10]      inet6_addr_add+0x12f/0xa40
[  676.702300][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  676.702300][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  676.702300][   T10]      netlink_rcv_skb+0x130/0x360
[  676.702300][   T10]      netlink_unicast+0x449/0x710
[  676.702300][   T10]      netlink_sendmsg+0x723/0xbe0
[  676.702300][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  676.702300][   T10]      ___sys_sendmsg+0xee/0x170
[  676.702300][   T10]      __sys_sendmsg+0xcd/0x170
[  676.702300][   T10]      do_syscall_64+0xc6/0x1e0
[  676.702300][   T10] 
[  676.704666][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  676.704666][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  676.704666][   T10]      ipv6_find_idev+0x102/0x170
[  676.704666][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  676.704666][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  676.704666][   T10]      netlink_rcv_skb+0x130/0x360
[  676.704666][   T10]      netlink_unicast+0x449/0x710
[  676.704666][   T10]      netlink_sendmsg+0x723/0xbe0
[  676.704666][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  676.704666][   T10]      ___sys_sendmsg+0xee/0x170
[  676.704666][   T10]      __sys_sendmsg+0xcd/0x170
[  676.704666][   T10]      do_syscall_64+0xc6/0x1e0
[  676.704666][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  676.704666][   T10] 
[  676.706521][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  676.706521][   T10]      neigh_parms_alloc+0x1e5/0x510
[  676.706521][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  676.706521][   T10]      ipv6_find_idev+0x102/0x170
[  676.706521][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  676.706521][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  676.706521][   T10]      netlink_rcv_skb+0x130/0x360
[  676.706521][   T10]      netlink_unicast+0x449/0x710
[  676.706521][   T10]      netlink_sendmsg+0x723/0xbe0
[  676.706521][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  676.706521][   T10]      ___sys_sendmsg+0xee/0x170
[  676.706521][   T10]      __sys_sendmsg+0xcd/0x170
[  676.706521][   T10]      do_syscall_64+0xc6/0x1e0
[  676.706521][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  676.706521][   T10] 
[  686.945784][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  686.946258][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  686.946258][   T10]      dst_init+0x84/0x4a0
[  686.946258][   T10]      dst_alloc+0x97/0x150
[  686.946258][   T10]      ip6_dst_alloc+0x23/0x90
[  686.946258][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  686.946258][   T10]      ip6_pol_route+0x56f/0x840
[  686.946258][   T10]      fib6_rule_lookup+0x456/0x630
[  686.946258][   T10]      ip6_route_input+0x59c/0xa50
[  686.946258][   T10]      ipv6_rcv+0x397/0x810
[  686.946258][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  686.946258][   T10]      process_backlog+0x101/0x620
[  686.946258][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  686.946258][   T10]      net_rx_action+0x495/0xbe0
[  686.946258][   T10]      __do_softirq+0x1b5/0x7f6
[  686.946258][   T10] 
[  686.948246][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  686.948246][   T10]      netdev_get_by_index+0x5e/0x80
[  686.948246][   T10]      fib6_nh_init+0x3d8/0x1580
[  686.948246][   T10]      ip6_route_info_create+0xf18/0x17d0
[  686.948246][   T10]      ip6_route_add+0x1c/0x140
[  686.948246][   T10]      addrconf_prefix_route+0x2a6/0x430
[  686.948246][   T10]      inet6_addr_add+0x4f8/0xa40
[  686.948246][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  686.948246][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  686.948246][   T10]      netlink_rcv_skb+0x130/0x360
[  686.948246][   T10]      netlink_unicast+0x449/0x710
[  686.948246][   T10]      netlink_sendmsg+0x723/0xbe0
[  686.948246][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  686.948246][   T10]      ___sys_sendmsg+0xee/0x170
[  686.948246][   T10]      __sys_sendmsg+0xcd/0x170
[  686.948246][   T10]      do_syscall_64+0xc6/0x1e0
[  686.948246][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  686.948246][   T10] 
[  686.950660][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  686.950660][   T10]      netdev_get_by_index+0x5e/0x80
[  686.950660][   T10]      fib6_nh_init+0x3d8/0x1580
[  686.950660][   T10]      ip6_route_info_create+0xf18/0x17d0
[  686.950660][   T10]      addrconf_f6i_alloc+0x315/0x560
[  686.950660][   T10]      ipv6_add_addr+0x411/0x2000
[  686.950660][   T10]      inet6_addr_add+0x30e/0xa40
[  686.950660][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  686.950660][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  686.950660][   T10]      netlink_rcv_skb+0x130/0x360
[  686.950660][   T10]      netlink_unicast+0x449/0x710
[  686.950660][   T10]      netlink_sendmsg+0x723/0xbe0
[  686.950660][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  686.950660][   T10]      ___sys_sendmsg+0xee/0x170
[  686.950660][   T10]      __sys_sendmsg+0xcd/0x170
[  686.950660][   T10]      do_syscall_64+0xc6/0x1e0
[  686.950660][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  686.950660][   T10] 
[  686.953069][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  686.953069][   T10]      netdev_get_by_index+0x5e/0x80
[  686.953069][   T10]      fib6_nh_init+0x3d8/0x1580
[  686.953069][   T10]      ip6_route_info_create+0xf18/0x17d0
[  686.953069][   T10]      ip6_route_add+0x1c/0x140
[  686.953069][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  686.953069][   T10]      addrconf_add_dev+0xe2/0x170
[  686.953069][   T10]      inet6_addr_add+0x12f/0xa40
[  686.953069][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  686.953069][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  686.953069][   T10]      netlink_rcv_skb+0x130/0x360
[  686.953069][   T10]      netlink_unicast+0x449/0x710
[  686.953069][   T10]      netlink_sendmsg+0x723/0xbe0
[  686.953069][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  686.953069][   T10]      ___sys_sendmsg+0xee/0x170
[  686.953069][   T10]      __sys_sendmsg+0xcd/0x170
[  686.953069][   T10]      do_syscall_64+0xc6/0x1e0
[  686.953069][   T10] 
[  686.955422][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  686.955422][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  686.955422][   T10]      ipv6_find_idev+0x102/0x170
[  686.955422][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  686.955422][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  686.955422][   T10]      netlink_rcv_skb+0x130/0x360
[  686.955422][   T10]      netlink_unicast+0x449/0x710
[  686.955422][   T10]      netlink_sendmsg+0x723/0xbe0
[  686.955422][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  686.955422][   T10]      ___sys_sendmsg+0xee/0x170
[  686.955422][   T10]      __sys_sendmsg+0xcd/0x170
[  686.955422][   T10]      do_syscall_64+0xc6/0x1e0
[  686.955422][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  686.955422][   T10] 
[  686.957271][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  686.957271][   T10]      neigh_parms_alloc+0x1e5/0x510
[  686.957271][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  686.957271][   T10]      ipv6_find_idev+0x102/0x170
[  686.957271][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  686.957271][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  686.957271][   T10]      netlink_rcv_skb+0x130/0x360
[  686.957271][   T10]      netlink_unicast+0x449/0x710
[  686.957271][   T10]      netlink_sendmsg+0x723/0xbe0
[  686.957271][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  686.957271][   T10]      ___sys_sendmsg+0xee/0x170
[  686.957271][   T10]      __sys_sendmsg+0xcd/0x170
[  686.957271][   T10]      do_syscall_64+0xc6/0x1e0
[  686.957271][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  686.957271][   T10] 
[  686.959309][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  686.959603][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  686.959603][   T10]      dst_init+0x84/0x4a0
[  686.959603][   T10]      dst_alloc+0x97/0x150
[  686.959603][   T10]      ip6_dst_alloc+0x23/0x90
[  686.959603][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  686.959603][   T10]      ip6_pol_route+0x56f/0x840
[  686.959603][   T10]      fib6_rule_lookup+0x456/0x630
[  686.959603][   T10]      ip6_route_input+0x59c/0xa50
[  686.959603][   T10]      ipv6_rcv+0x397/0x810
[  686.959603][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  686.959603][   T10]      process_backlog+0x101/0x620
[  686.959603][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  686.959603][   T10]      net_rx_action+0x495/0xbe0
[  686.959603][   T10]      __do_softirq+0x1b5/0x7f6
[  686.959603][   T10] 
[  686.961576][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  686.961576][   T10]      netdev_get_by_index+0x5e/0x80
[  686.961576][   T10]      fib6_nh_init+0x3d8/0x1580
[  686.961576][   T10]      ip6_route_info_create+0xf18/0x17d0
[  686.961576][   T10]      ip6_route_add+0x1c/0x140
[  686.961576][   T10]      addrconf_prefix_route+0x2a6/0x430
[  686.961576][   T10]      inet6_addr_add+0x4f8/0xa40
[  686.961576][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  686.961576][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  686.961576][   T10]      netlink_rcv_skb+0x130/0x360
[  686.961576][   T10]      netlink_unicast+0x449/0x710
[  686.961576][   T10]      netlink_sendmsg+0x723/0xbe0
[  686.961576][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  686.961576][   T10]      ___sys_sendmsg+0xee/0x170
[  686.961576][   T10]      __sys_sendmsg+0xcd/0x170
[  686.961576][   T10]      do_syscall_64+0xc6/0x1e0
[  686.961576][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  686.961576][   T10] 
[  686.963952][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  686.963952][   T10]      netdev_get_by_index+0x5e/0x80
[  686.963952][   T10]      fib6_nh_init+0x3d8/0x1580
[  686.963952][   T10]      ip6_route_info_create+0xf18/0x17d0
[  686.963952][   T10]      addrconf_f6i_alloc+0x315/0x560
[  686.963952][   T10]      ipv6_add_addr+0x411/0x2000
[  686.963952][   T10]      inet6_addr_add+0x30e/0xa40
[  686.963952][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  686.963952][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  686.963952][   T10]      netlink_rcv_skb+0x130/0x360
[  686.963952][   T10]      netlink_unicast+0x449/0x710
[  686.963952][   T10]      netlink_sendmsg+0x723/0xbe0
[  686.963952][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  686.963952][   T10]      ___sys_sendmsg+0xee/0x170
[  686.963952][   T10]      __sys_sendmsg+0xcd/0x170
[  686.963952][   T10]      do_syscall_64+0xc6/0x1e0
[  686.963952][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  686.963952][   T10] 
[  686.966337][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  686.966337][   T10]      netdev_get_by_index+0x5e/0x80
[  686.966337][   T10]      fib6_nh_init+0x3d8/0x1580
[  686.966337][   T10]      ip6_route_info_create+0xf18/0x17d0
[  686.966337][   T10]      ip6_route_add+0x1c/0x140
[  686.966337][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  686.966337][   T10]      addrconf_add_dev+0xe2/0x170
[  686.966337][   T10]      inet6_addr_add+0x12f/0xa40
[  686.966337][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  686.966337][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  686.966337][   T10]      netlink_rcv_skb+0x130/0x360
[  686.966337][   T10]      netlink_unicast+0x449/0x710
[  686.966337][   T10]      netlink_sendmsg+0x723/0xbe0
[  686.966337][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  686.966337][   T10]      ___sys_sendmsg+0xee/0x170
[  686.966337][   T10]      __sys_sendmsg+0xcd/0x170
[  686.966337][   T10]      do_syscall_64+0xc6/0x1e0
[  686.966337][   T10] 
[  686.968693][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  686.968693][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  686.968693][   T10]      ipv6_find_idev+0x102/0x170
[  686.968693][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  686.968693][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  686.968693][   T10]      netlink_rcv_skb+0x130/0x360
[  686.968693][   T10]      netlink_unicast+0x449/0x710
[  686.968693][   T10]      netlink_sendmsg+0x723/0xbe0
[  686.968693][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  686.968693][   T10]      ___sys_sendmsg+0xee/0x170
[  686.968693][   T10]      __sys_sendmsg+0xcd/0x170
[  686.968693][   T10]      do_syscall_64+0xc6/0x1e0
[  686.968693][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  686.968693][   T10] 
[  686.970544][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  686.970544][   T10]      neigh_parms_alloc+0x1e5/0x510
[  686.970544][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  686.970544][   T10]      ipv6_find_idev+0x102/0x170
[  686.970544][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  686.970544][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  686.970544][   T10]      netlink_rcv_skb+0x130/0x360
[  686.970544][   T10]      netlink_unicast+0x449/0x710
[  686.970544][   T10]      netlink_sendmsg+0x723/0xbe0
[  686.970544][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  686.970544][   T10]      ___sys_sendmsg+0xee/0x170
[  686.970544][   T10]      __sys_sendmsg+0xcd/0x170
[  686.970544][   T10]      do_syscall_64+0xc6/0x1e0
[  686.970544][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  686.970544][   T10] 
[  697.209798][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  697.210218][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  697.210218][   T10]      dst_init+0x84/0x4a0
[  697.210218][   T10]      dst_alloc+0x97/0x150
[  697.210218][   T10]      ip6_dst_alloc+0x23/0x90
[  697.210218][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  697.210218][   T10]      ip6_pol_route+0x56f/0x840
[  697.210218][   T10]      fib6_rule_lookup+0x456/0x630
[  697.210218][   T10]      ip6_route_input+0x59c/0xa50
[  697.210218][   T10]      ipv6_rcv+0x397/0x810
[  697.210218][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  697.210218][   T10]      process_backlog+0x101/0x620
[  697.210218][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  697.210218][   T10]      net_rx_action+0x495/0xbe0
[  697.210218][   T10]      __do_softirq+0x1b5/0x7f6
[  697.210218][   T10] 
[  697.212206][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  697.212206][   T10]      netdev_get_by_index+0x5e/0x80
[  697.212206][   T10]      fib6_nh_init+0x3d8/0x1580
[  697.212206][   T10]      ip6_route_info_create+0xf18/0x17d0
[  697.212206][   T10]      ip6_route_add+0x1c/0x140
[  697.212206][   T10]      addrconf_prefix_route+0x2a6/0x430
[  697.212206][   T10]      inet6_addr_add+0x4f8/0xa40
[  697.212206][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  697.212206][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  697.212206][   T10]      netlink_rcv_skb+0x130/0x360
[  697.212206][   T10]      netlink_unicast+0x449/0x710
[  697.212206][   T10]      netlink_sendmsg+0x723/0xbe0
[  697.212206][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  697.212206][   T10]      ___sys_sendmsg+0xee/0x170
[  697.212206][   T10]      __sys_sendmsg+0xcd/0x170
[  697.212206][   T10]      do_syscall_64+0xc6/0x1e0
[  697.212206][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  697.212206][   T10] 
[  697.214678][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  697.214678][   T10]      netdev_get_by_index+0x5e/0x80
[  697.214678][   T10]      fib6_nh_init+0x3d8/0x1580
[  697.214678][   T10]      ip6_route_info_create+0xf18/0x17d0
[  697.214678][   T10]      addrconf_f6i_alloc+0x315/0x560
[  697.214678][   T10]      ipv6_add_addr+0x411/0x2000
[  697.214678][   T10]      inet6_addr_add+0x30e/0xa40
[  697.214678][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  697.214678][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  697.214678][   T10]      netlink_rcv_skb+0x130/0x360
[  697.214678][   T10]      netlink_unicast+0x449/0x710
[  697.214678][   T10]      netlink_sendmsg+0x723/0xbe0
[  697.214678][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  697.214678][   T10]      ___sys_sendmsg+0xee/0x170
[  697.214678][   T10]      __sys_sendmsg+0xcd/0x170
[  697.214678][   T10]      do_syscall_64+0xc6/0x1e0
[  697.214678][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  697.214678][   T10] 
[  697.217086][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  697.217086][   T10]      netdev_get_by_index+0x5e/0x80
[  697.217086][   T10]      fib6_nh_init+0x3d8/0x1580
[  697.217086][   T10]      ip6_route_info_create+0xf18/0x17d0
[  697.217086][   T10]      ip6_route_add+0x1c/0x140
[  697.217086][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  697.217086][   T10]      addrconf_add_dev+0xe2/0x170
[  697.217086][   T10]      inet6_addr_add+0x12f/0xa40
[  697.217086][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  697.217086][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  697.217086][   T10]      netlink_rcv_skb+0x130/0x360
[  697.217086][   T10]      netlink_unicast+0x449/0x710
[  697.217086][   T10]      netlink_sendmsg+0x723/0xbe0
[  697.217086][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  697.217086][   T10]      ___sys_sendmsg+0xee/0x170
[  697.217086][   T10]      __sys_sendmsg+0xcd/0x170
[  697.217086][   T10]      do_syscall_64+0xc6/0x1e0
[  697.217086][   T10] 
[  697.219455][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  697.219455][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  697.219455][   T10]      ipv6_find_idev+0x102/0x170
[  697.219455][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  697.219455][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  697.219455][   T10]      netlink_rcv_skb+0x130/0x360
[  697.219455][   T10]      netlink_unicast+0x449/0x710
[  697.219455][   T10]      netlink_sendmsg+0x723/0xbe0
[  697.219455][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  697.219455][   T10]      ___sys_sendmsg+0xee/0x170
[  697.219455][   T10]      __sys_sendmsg+0xcd/0x170
[  697.219455][   T10]      do_syscall_64+0xc6/0x1e0
[  697.219455][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  697.219455][   T10] 
[  697.221291][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  697.221291][   T10]      neigh_parms_alloc+0x1e5/0x510
[  697.221291][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  697.221291][   T10]      ipv6_find_idev+0x102/0x170
[  697.221291][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  697.221291][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  697.221291][   T10]      netlink_rcv_skb+0x130/0x360
[  697.221291][   T10]      netlink_unicast+0x449/0x710
[  697.221291][   T10]      netlink_sendmsg+0x723/0xbe0
[  697.221291][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  697.221291][   T10]      ___sys_sendmsg+0xee/0x170
[  697.221291][   T10]      __sys_sendmsg+0xcd/0x170
[  697.221291][   T10]      do_syscall_64+0xc6/0x1e0
[  697.221291][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  697.221291][   T10] 
[  697.223330][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  697.223608][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  697.223608][   T10]      dst_init+0x84/0x4a0
[  697.223608][   T10]      dst_alloc+0x97/0x150
[  697.223608][   T10]      ip6_dst_alloc+0x23/0x90
[  697.223608][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  697.223608][   T10]      ip6_pol_route+0x56f/0x840
[  697.223608][   T10]      fib6_rule_lookup+0x456/0x630
[  697.223608][   T10]      ip6_route_input+0x59c/0xa50
[  697.223608][   T10]      ipv6_rcv+0x397/0x810
[  697.223608][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  697.223608][   T10]      process_backlog+0x101/0x620
[  697.223608][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  697.223608][   T10]      net_rx_action+0x495/0xbe0
[  697.223608][   T10]      __do_softirq+0x1b5/0x7f6
[  697.223608][   T10] 
[  697.225567][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  697.225567][   T10]      netdev_get_by_index+0x5e/0x80
[  697.225567][   T10]      fib6_nh_init+0x3d8/0x1580
[  697.225567][   T10]      ip6_route_info_create+0xf18/0x17d0
[  697.225567][   T10]      ip6_route_add+0x1c/0x140
[  697.225567][   T10]      addrconf_prefix_route+0x2a6/0x430
[  697.225567][   T10]      inet6_addr_add+0x4f8/0xa40
[  697.225567][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  697.225567][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  697.225567][   T10]      netlink_rcv_skb+0x130/0x360
[  697.225567][   T10]      netlink_unicast+0x449/0x710
[  697.225567][   T10]      netlink_sendmsg+0x723/0xbe0
[  697.225567][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  697.225567][   T10]      ___sys_sendmsg+0xee/0x170
[  697.225567][   T10]      __sys_sendmsg+0xcd/0x170
[  697.225567][   T10]      do_syscall_64+0xc6/0x1e0
[  697.225567][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  697.225567][   T10] 
[  697.227964][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  697.227964][   T10]      netdev_get_by_index+0x5e/0x80
[  697.227964][   T10]      fib6_nh_init+0x3d8/0x1580
[  697.227964][   T10]      ip6_route_info_create+0xf18/0x17d0
[  697.227964][   T10]      addrconf_f6i_alloc+0x315/0x560
[  697.227964][   T10]      ipv6_add_addr+0x411/0x2000
[  697.227964][   T10]      inet6_addr_add+0x30e/0xa40
[  697.227964][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  697.227964][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  697.227964][   T10]      netlink_rcv_skb+0x130/0x360
[  697.227964][   T10]      netlink_unicast+0x449/0x710
[  697.227964][   T10]      netlink_sendmsg+0x723/0xbe0
[  697.227964][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  697.227964][   T10]      ___sys_sendmsg+0xee/0x170
[  697.227964][   T10]      __sys_sendmsg+0xcd/0x170
[  697.227964][   T10]      do_syscall_64+0xc6/0x1e0
[  697.227964][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  697.227964][   T10] 
[  697.230361][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  697.230361][   T10]      netdev_get_by_index+0x5e/0x80
[  697.230361][   T10]      fib6_nh_init+0x3d8/0x1580
[  697.230361][   T10]      ip6_route_info_create+0xf18/0x17d0
[  697.230361][   T10]      ip6_route_add+0x1c/0x140
[  697.230361][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  697.230361][   T10]      addrconf_add_dev+0xe2/0x170
[  697.230361][   T10]      inet6_addr_add+0x12f/0xa40
[  697.230361][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  697.230361][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  697.230361][   T10]      netlink_rcv_skb+0x130/0x360
[  697.230361][   T10]      netlink_unicast+0x449/0x710
[  697.230361][   T10]      netlink_sendmsg+0x723/0xbe0
[  697.230361][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  697.230361][   T10]      ___sys_sendmsg+0xee/0x170
[  697.230361][   T10]      __sys_sendmsg+0xcd/0x170
[  697.230361][   T10]      do_syscall_64+0xc6/0x1e0
[  697.230361][   T10] 
[  697.232720][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  697.232720][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  697.232720][   T10]      ipv6_find_idev+0x102/0x170
[  697.232720][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  697.232720][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  697.232720][   T10]      netlink_rcv_skb+0x130/0x360
[  697.232720][   T10]      netlink_unicast+0x449/0x710
[  697.232720][   T10]      netlink_sendmsg+0x723/0xbe0
[  697.232720][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  697.232720][   T10]      ___sys_sendmsg+0xee/0x170
[  697.232720][   T10]      __sys_sendmsg+0xcd/0x170
[  697.232720][   T10]      do_syscall_64+0xc6/0x1e0
[  697.232720][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  697.232720][   T10] 
[  697.234556][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  697.234556][   T10]      neigh_parms_alloc+0x1e5/0x510
[  697.234556][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  697.234556][   T10]      ipv6_find_idev+0x102/0x170
[  697.234556][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  697.234556][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  697.234556][   T10]      netlink_rcv_skb+0x130/0x360
[  697.234556][   T10]      netlink_unicast+0x449/0x710
[  697.234556][   T10]      netlink_sendmsg+0x723/0xbe0
[  697.234556][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  697.234556][   T10]      ___sys_sendmsg+0xee/0x170
[  697.234556][   T10]      __sys_sendmsg+0xcd/0x170
[  697.234556][   T10]      do_syscall_64+0xc6/0x1e0
[  697.234556][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  697.234556][   T10] 
[  707.473806][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  707.474284][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  707.474284][   T10]      dst_init+0x84/0x4a0
[  707.474284][   T10]      dst_alloc+0x97/0x150
[  707.474284][   T10]      ip6_dst_alloc+0x23/0x90
[  707.474284][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  707.474284][   T10]      ip6_pol_route+0x56f/0x840
[  707.474284][   T10]      fib6_rule_lookup+0x456/0x630
[  707.474284][   T10]      ip6_route_input+0x59c/0xa50
[  707.474284][   T10]      ipv6_rcv+0x397/0x810
[  707.474284][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  707.474284][   T10]      process_backlog+0x101/0x620
[  707.474284][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  707.474284][   T10]      net_rx_action+0x495/0xbe0
[  707.474284][   T10]      __do_softirq+0x1b5/0x7f6
[  707.474284][   T10] 
[  707.476223][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  707.476223][   T10]      netdev_get_by_index+0x5e/0x80
[  707.476223][   T10]      fib6_nh_init+0x3d8/0x1580
[  707.476223][   T10]      ip6_route_info_create+0xf18/0x17d0
[  707.476223][   T10]      ip6_route_add+0x1c/0x140
[  707.476223][   T10]      addrconf_prefix_route+0x2a6/0x430
[  707.476223][   T10]      inet6_addr_add+0x4f8/0xa40
[  707.476223][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  707.476223][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  707.476223][   T10]      netlink_rcv_skb+0x130/0x360
[  707.476223][   T10]      netlink_unicast+0x449/0x710
[  707.476223][   T10]      netlink_sendmsg+0x723/0xbe0
[  707.476223][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  707.476223][   T10]      ___sys_sendmsg+0xee/0x170
[  707.476223][   T10]      __sys_sendmsg+0xcd/0x170
[  707.476223][   T10]      do_syscall_64+0xc6/0x1e0
[  707.476223][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  707.476223][   T10] 
[  707.478560][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  707.478560][   T10]      netdev_get_by_index+0x5e/0x80
[  707.478560][   T10]      fib6_nh_init+0x3d8/0x1580
[  707.478560][   T10]      ip6_route_info_create+0xf18/0x17d0
[  707.478560][   T10]      addrconf_f6i_alloc+0x315/0x560
[  707.478560][   T10]      ipv6_add_addr+0x411/0x2000
[  707.478560][   T10]      inet6_addr_add+0x30e/0xa40
[  707.478560][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  707.478560][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  707.478560][   T10]      netlink_rcv_skb+0x130/0x360
[  707.478560][   T10]      netlink_unicast+0x449/0x710
[  707.478560][   T10]      netlink_sendmsg+0x723/0xbe0
[  707.478560][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  707.478560][   T10]      ___sys_sendmsg+0xee/0x170
[  707.478560][   T10]      __sys_sendmsg+0xcd/0x170
[  707.478560][   T10]      do_syscall_64+0xc6/0x1e0
[  707.478560][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  707.478560][   T10] 
[  707.480900][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  707.480900][   T10]      netdev_get_by_index+0x5e/0x80
[  707.480900][   T10]      fib6_nh_init+0x3d8/0x1580
[  707.480900][   T10]      ip6_route_info_create+0xf18/0x17d0
[  707.480900][   T10]      ip6_route_add+0x1c/0x140
[  707.480900][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  707.480900][   T10]      addrconf_add_dev+0xe2/0x170
[  707.480900][   T10]      inet6_addr_add+0x12f/0xa40
[  707.480900][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  707.480900][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  707.480900][   T10]      netlink_rcv_skb+0x130/0x360
[  707.480900][   T10]      netlink_unicast+0x449/0x710
[  707.480900][   T10]      netlink_sendmsg+0x723/0xbe0
[  707.480900][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  707.480900][   T10]      ___sys_sendmsg+0xee/0x170
[  707.480900][   T10]      __sys_sendmsg+0xcd/0x170
[  707.480900][   T10]      do_syscall_64+0xc6/0x1e0
[  707.480900][   T10] 
[  707.483203][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  707.483203][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  707.483203][   T10]      ipv6_find_idev+0x102/0x170
[  707.483203][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  707.483203][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  707.483203][   T10]      netlink_rcv_skb+0x130/0x360
[  707.483203][   T10]      netlink_unicast+0x449/0x710
[  707.483203][   T10]      netlink_sendmsg+0x723/0xbe0
[  707.483203][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  707.483203][   T10]      ___sys_sendmsg+0xee/0x170
[  707.483203][   T10]      __sys_sendmsg+0xcd/0x170
[  707.483203][   T10]      do_syscall_64+0xc6/0x1e0
[  707.483203][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  707.483203][   T10] 
[  707.485018][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  707.485018][   T10]      neigh_parms_alloc+0x1e5/0x510
[  707.485018][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  707.485018][   T10]      ipv6_find_idev+0x102/0x170
[  707.485018][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  707.485018][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  707.485018][   T10]      netlink_rcv_skb+0x130/0x360
[  707.485018][   T10]      netlink_unicast+0x449/0x710
[  707.485018][   T10]      netlink_sendmsg+0x723/0xbe0
[  707.485018][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  707.485018][   T10]      ___sys_sendmsg+0xee/0x170
[  707.485018][   T10]      __sys_sendmsg+0xcd/0x170
[  707.485018][   T10]      do_syscall_64+0xc6/0x1e0
[  707.485018][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  707.485018][   T10] 
[  707.486987][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  707.487257][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  707.487257][   T10]      dst_init+0x84/0x4a0
[  707.487257][   T10]      dst_alloc+0x97/0x150
[  707.487257][   T10]      ip6_dst_alloc+0x23/0x90
[  707.487257][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  707.487257][   T10]      ip6_pol_route+0x56f/0x840
[  707.487257][   T10]      fib6_rule_lookup+0x456/0x630
[  707.487257][   T10]      ip6_route_input+0x59c/0xa50
[  707.487257][   T10]      ipv6_rcv+0x397/0x810
[  707.487257][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  707.487257][   T10]      process_backlog+0x101/0x620
[  707.487257][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  707.487257][   T10]      net_rx_action+0x495/0xbe0
[  707.487257][   T10]      __do_softirq+0x1b5/0x7f6
[  707.487257][   T10] 
[  707.489178][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  707.489178][   T10]      netdev_get_by_index+0x5e/0x80
[  707.489178][   T10]      fib6_nh_init+0x3d8/0x1580
[  707.489178][   T10]      ip6_route_info_create+0xf18/0x17d0
[  707.489178][   T10]      ip6_route_add+0x1c/0x140
[  707.489178][   T10]      addrconf_prefix_route+0x2a6/0x430
[  707.489178][   T10]      inet6_addr_add+0x4f8/0xa40
[  707.489178][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  707.489178][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  707.489178][   T10]      netlink_rcv_skb+0x130/0x360
[  707.489178][   T10]      netlink_unicast+0x449/0x710
[  707.489178][   T10]      netlink_sendmsg+0x723/0xbe0
[  707.489178][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  707.489178][   T10]      ___sys_sendmsg+0xee/0x170
[  707.489178][   T10]      __sys_sendmsg+0xcd/0x170
[  707.489178][   T10]      do_syscall_64+0xc6/0x1e0
[  707.489178][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  707.489178][   T10] 
[  707.491617][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  707.491617][   T10]      netdev_get_by_index+0x5e/0x80
[  707.491617][   T10]      fib6_nh_init+0x3d8/0x1580
[  707.491617][   T10]      ip6_route_info_create+0xf18/0x17d0
[  707.491617][   T10]      addrconf_f6i_alloc+0x315/0x560
[  707.491617][   T10]      ipv6_add_addr+0x411/0x2000
[  707.491617][   T10]      inet6_addr_add+0x30e/0xa40
[  707.491617][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  707.491617][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  707.491617][   T10]      netlink_rcv_skb+0x130/0x360
[  707.491617][   T10]      netlink_unicast+0x449/0x710
[  707.491617][   T10]      netlink_sendmsg+0x723/0xbe0
[  707.491617][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  707.491617][   T10]      ___sys_sendmsg+0xee/0x170
[  707.491617][   T10]      __sys_sendmsg+0xcd/0x170
[  707.491617][   T10]      do_syscall_64+0xc6/0x1e0
[  707.491617][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  707.491617][   T10] 
[  707.493970][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  707.493970][   T10]      netdev_get_by_index+0x5e/0x80
[  707.493970][   T10]      fib6_nh_init+0x3d8/0x1580
[  707.493970][   T10]      ip6_route_info_create+0xf18/0x17d0
[  707.493970][   T10]      ip6_route_add+0x1c/0x140
[  707.493970][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  707.493970][   T10]      addrconf_add_dev+0xe2/0x170
[  707.493970][   T10]      inet6_addr_add+0x12f/0xa40
[  707.493970][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  707.493970][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  707.493970][   T10]      netlink_rcv_skb+0x130/0x360
[  707.493970][   T10]      netlink_unicast+0x449/0x710
[  707.493970][   T10]      netlink_sendmsg+0x723/0xbe0
[  707.493970][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  707.493970][   T10]      ___sys_sendmsg+0xee/0x170
[  707.493970][   T10]      __sys_sendmsg+0xcd/0x170
[  707.493970][   T10]      do_syscall_64+0xc6/0x1e0
[  707.493970][   T10] 
[  707.496275][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  707.496275][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  707.496275][   T10]      ipv6_find_idev+0x102/0x170
[  707.496275][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  707.496275][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  707.496275][   T10]      netlink_rcv_skb+0x130/0x360
[  707.496275][   T10]      netlink_unicast+0x449/0x710
[  707.496275][   T10]      netlink_sendmsg+0x723/0xbe0
[  707.496275][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  707.496275][   T10]      ___sys_sendmsg+0xee/0x170
[  707.496275][   T10]      __sys_sendmsg+0xcd/0x170
[  707.496275][   T10]      do_syscall_64+0xc6/0x1e0
[  707.496275][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  707.496275][   T10] 
[  707.498115][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  707.498115][   T10]      neigh_parms_alloc+0x1e5/0x510
[  707.498115][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  707.498115][   T10]      ipv6_find_idev+0x102/0x170
[  707.498115][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  707.498115][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  707.498115][   T10]      netlink_rcv_skb+0x130/0x360
[  707.498115][   T10]      netlink_unicast+0x449/0x710
[  707.498115][   T10]      netlink_sendmsg+0x723/0xbe0
[  707.498115][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  707.498115][   T10]      ___sys_sendmsg+0xee/0x170
[  707.498115][   T10]      __sys_sendmsg+0xcd/0x170
[  707.498115][   T10]      do_syscall_64+0xc6/0x1e0
[  707.498115][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  707.498115][   T10] 
[  717.665785][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  717.666246][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  717.666246][   T10]      dst_init+0x84/0x4a0
[  717.666246][   T10]      dst_alloc+0x97/0x150
[  717.666246][   T10]      ip6_dst_alloc+0x23/0x90
[  717.666246][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  717.666246][   T10]      ip6_pol_route+0x56f/0x840
[  717.666246][   T10]      fib6_rule_lookup+0x456/0x630
[  717.666246][   T10]      ip6_route_input+0x59c/0xa50
[  717.666246][   T10]      ipv6_rcv+0x397/0x810
[  717.666246][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  717.666246][   T10]      process_backlog+0x101/0x620
[  717.666246][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  717.666246][   T10]      net_rx_action+0x495/0xbe0
[  717.666246][   T10]      __do_softirq+0x1b5/0x7f6
[  717.666246][   T10] 
[  717.668183][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  717.668183][   T10]      netdev_get_by_index+0x5e/0x80
[  717.668183][   T10]      fib6_nh_init+0x3d8/0x1580
[  717.668183][   T10]      ip6_route_info_create+0xf18/0x17d0
[  717.668183][   T10]      ip6_route_add+0x1c/0x140
[  717.668183][   T10]      addrconf_prefix_route+0x2a6/0x430
[  717.668183][   T10]      inet6_addr_add+0x4f8/0xa40
[  717.668183][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  717.668183][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  717.668183][   T10]      netlink_rcv_skb+0x130/0x360
[  717.668183][   T10]      netlink_unicast+0x449/0x710
[  717.668183][   T10]      netlink_sendmsg+0x723/0xbe0
[  717.668183][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  717.668183][   T10]      ___sys_sendmsg+0xee/0x170
[  717.668183][   T10]      __sys_sendmsg+0xcd/0x170
[  717.668183][   T10]      do_syscall_64+0xc6/0x1e0
[  717.668183][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  717.668183][   T10] 
[  717.670533][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  717.670533][   T10]      netdev_get_by_index+0x5e/0x80
[  717.670533][   T10]      fib6_nh_init+0x3d8/0x1580
[  717.670533][   T10]      ip6_route_info_create+0xf18/0x17d0
[  717.670533][   T10]      addrconf_f6i_alloc+0x315/0x560
[  717.670533][   T10]      ipv6_add_addr+0x411/0x2000
[  717.670533][   T10]      inet6_addr_add+0x30e/0xa40
[  717.670533][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  717.670533][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  717.670533][   T10]      netlink_rcv_skb+0x130/0x360
[  717.670533][   T10]      netlink_unicast+0x449/0x710
[  717.670533][   T10]      netlink_sendmsg+0x723/0xbe0
[  717.670533][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  717.670533][   T10]      ___sys_sendmsg+0xee/0x170
[  717.670533][   T10]      __sys_sendmsg+0xcd/0x170
[  717.670533][   T10]      do_syscall_64+0xc6/0x1e0
[  717.670533][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  717.670533][   T10] 
[  717.672896][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  717.672896][   T10]      netdev_get_by_index+0x5e/0x80
[  717.672896][   T10]      fib6_nh_init+0x3d8/0x1580
[  717.672896][   T10]      ip6_route_info_create+0xf18/0x17d0
[  717.672896][   T10]      ip6_route_add+0x1c/0x140
[  717.672896][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  717.672896][   T10]      addrconf_add_dev+0xe2/0x170
[  717.672896][   T10]      inet6_addr_add+0x12f/0xa40
[  717.672896][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  717.672896][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  717.672896][   T10]      netlink_rcv_skb+0x130/0x360
[  717.672896][   T10]      netlink_unicast+0x449/0x710
[  717.672896][   T10]      netlink_sendmsg+0x723/0xbe0
[  717.672896][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  717.672896][   T10]      ___sys_sendmsg+0xee/0x170
[  717.672896][   T10]      __sys_sendmsg+0xcd/0x170
[  717.672896][   T10]      do_syscall_64+0xc6/0x1e0
[  717.672896][   T10] 
[  717.675208][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  717.675208][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  717.675208][   T10]      ipv6_find_idev+0x102/0x170
[  717.675208][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  717.675208][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  717.675208][   T10]      netlink_rcv_skb+0x130/0x360
[  717.675208][   T10]      netlink_unicast+0x449/0x710
[  717.675208][   T10]      netlink_sendmsg+0x723/0xbe0
[  717.675208][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  717.675208][   T10]      ___sys_sendmsg+0xee/0x170
[  717.675208][   T10]      __sys_sendmsg+0xcd/0x170
[  717.675208][   T10]      do_syscall_64+0xc6/0x1e0
[  717.675208][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  717.675208][   T10] 
[  717.677013][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  717.677013][   T10]      neigh_parms_alloc+0x1e5/0x510
[  717.677013][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  717.677013][   T10]      ipv6_find_idev+0x102/0x170
[  717.677013][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  717.677013][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  717.677013][   T10]      netlink_rcv_skb+0x130/0x360
[  717.677013][   T10]      netlink_unicast+0x449/0x710
[  717.677013][   T10]      netlink_sendmsg+0x723/0xbe0
[  717.677013][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  717.677013][   T10]      ___sys_sendmsg+0xee/0x170
[  717.677013][   T10]      __sys_sendmsg+0xcd/0x170
[  717.677013][   T10]      do_syscall_64+0xc6/0x1e0
[  717.677013][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  717.677013][   T10] 
[  717.678978][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  717.679247][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  717.679247][   T10]      dst_init+0x84/0x4a0
[  717.679247][   T10]      dst_alloc+0x97/0x150
[  717.679247][   T10]      ip6_dst_alloc+0x23/0x90
[  717.679247][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  717.679247][   T10]      ip6_pol_route+0x56f/0x840
[  717.679247][   T10]      fib6_rule_lookup+0x456/0x630
[  717.679247][   T10]      ip6_route_input+0x59c/0xa50
[  717.679247][   T10]      ipv6_rcv+0x397/0x810
[  717.679247][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  717.679247][   T10]      process_backlog+0x101/0x620
[  717.679247][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  717.679247][   T10]      net_rx_action+0x495/0xbe0
[  717.679247][   T10]      __do_softirq+0x1b5/0x7f6
[  717.679247][   T10] 
[  717.681162][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  717.681162][   T10]      netdev_get_by_index+0x5e/0x80
[  717.681162][   T10]      fib6_nh_init+0x3d8/0x1580
[  717.681162][   T10]      ip6_route_info_create+0xf18/0x17d0
[  717.681162][   T10]      ip6_route_add+0x1c/0x140
[  717.681162][   T10]      addrconf_prefix_route+0x2a6/0x430
[  717.681162][   T10]      inet6_addr_add+0x4f8/0xa40
[  717.681162][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  717.681162][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  717.681162][   T10]      netlink_rcv_skb+0x130/0x360
[  717.681162][   T10]      netlink_unicast+0x449/0x710
[  717.681162][   T10]      netlink_sendmsg+0x723/0xbe0
[  717.681162][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  717.681162][   T10]      ___sys_sendmsg+0xee/0x170
[  717.681162][   T10]      __sys_sendmsg+0xcd/0x170
[  717.681162][   T10]      do_syscall_64+0xc6/0x1e0
[  717.681162][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  717.681162][   T10] 
[  717.683512][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  717.683512][   T10]      netdev_get_by_index+0x5e/0x80
[  717.683512][   T10]      fib6_nh_init+0x3d8/0x1580
[  717.683512][   T10]      ip6_route_info_create+0xf18/0x17d0
[  717.683512][   T10]      addrconf_f6i_alloc+0x315/0x560
[  717.683512][   T10]      ipv6_add_addr+0x411/0x2000
[  717.683512][   T10]      inet6_addr_add+0x30e/0xa40
[  717.683512][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  717.683512][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  717.683512][   T10]      netlink_rcv_skb+0x130/0x360
[  717.683512][   T10]      netlink_unicast+0x449/0x710
[  717.683512][   T10]      netlink_sendmsg+0x723/0xbe0
[  717.683512][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  717.683512][   T10]      ___sys_sendmsg+0xee/0x170
[  717.683512][   T10]      __sys_sendmsg+0xcd/0x170
[  717.683512][   T10]      do_syscall_64+0xc6/0x1e0
[  717.683512][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  717.683512][   T10] 
[  717.685848][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  717.685848][   T10]      netdev_get_by_index+0x5e/0x80
[  717.685848][   T10]      fib6_nh_init+0x3d8/0x1580
[  717.685848][   T10]      ip6_route_info_create+0xf18/0x17d0
[  717.685848][   T10]      ip6_route_add+0x1c/0x140
[  717.685848][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  717.685848][   T10]      addrconf_add_dev+0xe2/0x170
[  717.685848][   T10]      inet6_addr_add+0x12f/0xa40
[  717.685848][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  717.685848][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  717.685848][   T10]      netlink_rcv_skb+0x130/0x360
[  717.685848][   T10]      netlink_unicast+0x449/0x710
[  717.685848][   T10]      netlink_sendmsg+0x723/0xbe0
[  717.685848][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  717.685848][   T10]      ___sys_sendmsg+0xee/0x170
[  717.685848][   T10]      __sys_sendmsg+0xcd/0x170
[  717.685848][   T10]      do_syscall_64+0xc6/0x1e0
[  717.685848][   T10] 
[  717.688152][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  717.688152][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  717.688152][   T10]      ipv6_find_idev+0x102/0x170
[  717.688152][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  717.688152][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  717.688152][   T10]      netlink_rcv_skb+0x130/0x360
[  717.688152][   T10]      netlink_unicast+0x449/0x710
[  717.688152][   T10]      netlink_sendmsg+0x723/0xbe0
[  717.688152][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  717.688152][   T10]      ___sys_sendmsg+0xee/0x170
[  717.688152][   T10]      __sys_sendmsg+0xcd/0x170
[  717.688152][   T10]      do_syscall_64+0xc6/0x1e0
[  717.688152][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  717.688152][   T10] 
[  717.689950][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  717.689950][   T10]      neigh_parms_alloc+0x1e5/0x510
[  717.689950][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  717.689950][   T10]      ipv6_find_idev+0x102/0x170
[  717.689950][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  717.689950][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  717.689950][   T10]      netlink_rcv_skb+0x130/0x360
[  717.689950][   T10]      netlink_unicast+0x449/0x710
[  717.689950][   T10]      netlink_sendmsg+0x723/0xbe0
[  717.689950][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  717.689950][   T10]      ___sys_sendmsg+0xee/0x170
[  717.689950][   T10]      __sys_sendmsg+0xcd/0x170
[  717.689950][   T10]      do_syscall_64+0xc6/0x1e0
[  717.689950][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  717.689950][   T10] 
[  727.929779][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  727.930231][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  727.930231][   T10]      dst_init+0x84/0x4a0
[  727.930231][   T10]      dst_alloc+0x97/0x150
[  727.930231][   T10]      ip6_dst_alloc+0x23/0x90
[  727.930231][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  727.930231][   T10]      ip6_pol_route+0x56f/0x840
[  727.930231][   T10]      fib6_rule_lookup+0x456/0x630
[  727.930231][   T10]      ip6_route_input+0x59c/0xa50
[  727.930231][   T10]      ipv6_rcv+0x397/0x810
[  727.930231][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  727.930231][   T10]      process_backlog+0x101/0x620
[  727.930231][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  727.930231][   T10]      net_rx_action+0x495/0xbe0
[  727.930231][   T10]      __do_softirq+0x1b5/0x7f6
[  727.930231][   T10] 
[  727.932161][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  727.932161][   T10]      netdev_get_by_index+0x5e/0x80
[  727.932161][   T10]      fib6_nh_init+0x3d8/0x1580
[  727.932161][   T10]      ip6_route_info_create+0xf18/0x17d0
[  727.932161][   T10]      ip6_route_add+0x1c/0x140
[  727.932161][   T10]      addrconf_prefix_route+0x2a6/0x430
[  727.932161][   T10]      inet6_addr_add+0x4f8/0xa40
[  727.932161][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  727.932161][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  727.932161][   T10]      netlink_rcv_skb+0x130/0x360
[  727.932161][   T10]      netlink_unicast+0x449/0x710
[  727.932161][   T10]      netlink_sendmsg+0x723/0xbe0
[  727.932161][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  727.932161][   T10]      ___sys_sendmsg+0xee/0x170
[  727.932161][   T10]      __sys_sendmsg+0xcd/0x170
[  727.932161][   T10]      do_syscall_64+0xc6/0x1e0
[  727.932161][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  727.932161][   T10] 
[  727.934497][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  727.934497][   T10]      netdev_get_by_index+0x5e/0x80
[  727.934497][   T10]      fib6_nh_init+0x3d8/0x1580
[  727.934497][   T10]      ip6_route_info_create+0xf18/0x17d0
[  727.934497][   T10]      addrconf_f6i_alloc+0x315/0x560
[  727.934497][   T10]      ipv6_add_addr+0x411/0x2000
[  727.934497][   T10]      inet6_addr_add+0x30e/0xa40
[  727.934497][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  727.934497][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  727.934497][   T10]      netlink_rcv_skb+0x130/0x360
[  727.934497][   T10]      netlink_unicast+0x449/0x710
[  727.934497][   T10]      netlink_sendmsg+0x723/0xbe0
[  727.934497][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  727.934497][   T10]      ___sys_sendmsg+0xee/0x170
[  727.934497][   T10]      __sys_sendmsg+0xcd/0x170
[  727.934497][   T10]      do_syscall_64+0xc6/0x1e0
[  727.934497][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  727.934497][   T10] 
[  727.936832][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  727.936832][   T10]      netdev_get_by_index+0x5e/0x80
[  727.936832][   T10]      fib6_nh_init+0x3d8/0x1580
[  727.936832][   T10]      ip6_route_info_create+0xf18/0x17d0
[  727.936832][   T10]      ip6_route_add+0x1c/0x140
[  727.936832][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  727.936832][   T10]      addrconf_add_dev+0xe2/0x170
[  727.936832][   T10]      inet6_addr_add+0x12f/0xa40
[  727.936832][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  727.936832][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  727.936832][   T10]      netlink_rcv_skb+0x130/0x360
[  727.936832][   T10]      netlink_unicast+0x449/0x710
[  727.936832][   T10]      netlink_sendmsg+0x723/0xbe0
[  727.936832][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  727.936832][   T10]      ___sys_sendmsg+0xee/0x170
[  727.936832][   T10]      __sys_sendmsg+0xcd/0x170
[  727.936832][   T10]      do_syscall_64+0xc6/0x1e0
[  727.936832][   T10] 
[  727.939165][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  727.939165][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  727.939165][   T10]      ipv6_find_idev+0x102/0x170
[  727.939165][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  727.939165][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  727.939165][   T10]      netlink_rcv_skb+0x130/0x360
[  727.939165][   T10]      netlink_unicast+0x449/0x710
[  727.939165][   T10]      netlink_sendmsg+0x723/0xbe0
[  727.939165][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  727.939165][   T10]      ___sys_sendmsg+0xee/0x170
[  727.939165][   T10]      __sys_sendmsg+0xcd/0x170
[  727.939165][   T10]      do_syscall_64+0xc6/0x1e0
[  727.939165][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  727.939165][   T10] 
[  727.940966][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  727.940966][   T10]      neigh_parms_alloc+0x1e5/0x510
[  727.940966][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  727.940966][   T10]      ipv6_find_idev+0x102/0x170
[  727.940966][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  727.940966][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  727.940966][   T10]      netlink_rcv_skb+0x130/0x360
[  727.940966][   T10]      netlink_unicast+0x449/0x710
[  727.940966][   T10]      netlink_sendmsg+0x723/0xbe0
[  727.940966][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  727.940966][   T10]      ___sys_sendmsg+0xee/0x170
[  727.940966][   T10]      __sys_sendmsg+0xcd/0x170
[  727.940966][   T10]      do_syscall_64+0xc6/0x1e0
[  727.940966][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  727.940966][   T10] 
[  727.942944][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  727.943214][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  727.943214][   T10]      dst_init+0x84/0x4a0
[  727.943214][   T10]      dst_alloc+0x97/0x150
[  727.943214][   T10]      ip6_dst_alloc+0x23/0x90
[  727.943214][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  727.943214][   T10]      ip6_pol_route+0x56f/0x840
[  727.943214][   T10]      fib6_rule_lookup+0x456/0x630
[  727.943214][   T10]      ip6_route_input+0x59c/0xa50
[  727.943214][   T10]      ipv6_rcv+0x397/0x810
[  727.943214][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  727.943214][   T10]      process_backlog+0x101/0x620
[  727.943214][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  727.943214][   T10]      net_rx_action+0x495/0xbe0
[  727.943214][   T10]      __do_softirq+0x1b5/0x7f6
[  727.943214][   T10] 
[  727.945145][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  727.945145][   T10]      netdev_get_by_index+0x5e/0x80
[  727.945145][   T10]      fib6_nh_init+0x3d8/0x1580
[  727.945145][   T10]      ip6_route_info_create+0xf18/0x17d0
[  727.945145][   T10]      ip6_route_add+0x1c/0x140
[  727.945145][   T10]      addrconf_prefix_route+0x2a6/0x430
[  727.945145][   T10]      inet6_addr_add+0x4f8/0xa40
[  727.945145][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  727.945145][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  727.945145][   T10]      netlink_rcv_skb+0x130/0x360
[  727.945145][   T10]      netlink_unicast+0x449/0x710
[  727.945145][   T10]      netlink_sendmsg+0x723/0xbe0
[  727.945145][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  727.945145][   T10]      ___sys_sendmsg+0xee/0x170
[  727.945145][   T10]      __sys_sendmsg+0xcd/0x170
[  727.945145][   T10]      do_syscall_64+0xc6/0x1e0
[  727.945145][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  727.945145][   T10] 
[  727.947491][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  727.947491][   T10]      netdev_get_by_index+0x5e/0x80
[  727.947491][   T10]      fib6_nh_init+0x3d8/0x1580
[  727.947491][   T10]      ip6_route_info_create+0xf18/0x17d0
[  727.947491][   T10]      addrconf_f6i_alloc+0x315/0x560
[  727.947491][   T10]      ipv6_add_addr+0x411/0x2000
[  727.947491][   T10]      inet6_addr_add+0x30e/0xa40
[  727.947491][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  727.947491][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  727.947491][   T10]      netlink_rcv_skb+0x130/0x360
[  727.947491][   T10]      netlink_unicast+0x449/0x710
[  727.947491][   T10]      netlink_sendmsg+0x723/0xbe0
[  727.947491][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  727.947491][   T10]      ___sys_sendmsg+0xee/0x170
[  727.947491][   T10]      __sys_sendmsg+0xcd/0x170
[  727.947491][   T10]      do_syscall_64+0xc6/0x1e0
[  727.947491][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  727.947491][   T10] 
[  727.949847][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  727.949847][   T10]      netdev_get_by_index+0x5e/0x80
[  727.949847][   T10]      fib6_nh_init+0x3d8/0x1580
[  727.949847][   T10]      ip6_route_info_create+0xf18/0x17d0
[  727.949847][   T10]      ip6_route_add+0x1c/0x140
[  727.949847][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  727.949847][   T10]      addrconf_add_dev+0xe2/0x170
[  727.949847][   T10]      inet6_addr_add+0x12f/0xa40
[  727.949847][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  727.949847][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  727.949847][   T10]      netlink_rcv_skb+0x130/0x360
[  727.949847][   T10]      netlink_unicast+0x449/0x710
[  727.949847][   T10]      netlink_sendmsg+0x723/0xbe0
[  727.949847][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  727.949847][   T10]      ___sys_sendmsg+0xee/0x170
[  727.949847][   T10]      __sys_sendmsg+0xcd/0x170
[  727.949847][   T10]      do_syscall_64+0xc6/0x1e0
[  727.949847][   T10] 
[  727.952145][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  727.952145][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  727.952145][   T10]      ipv6_find_idev+0x102/0x170
[  727.952145][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  727.952145][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  727.952145][   T10]      netlink_rcv_skb+0x130/0x360
[  727.952145][   T10]      netlink_unicast+0x449/0x710
[  727.952145][   T10]      netlink_sendmsg+0x723/0xbe0
[  727.952145][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  727.952145][   T10]      ___sys_sendmsg+0xee/0x170
[  727.952145][   T10]      __sys_sendmsg+0xcd/0x170
[  727.952145][   T10]      do_syscall_64+0xc6/0x1e0
[  727.952145][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  727.952145][   T10] 
[  727.953954][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  727.953954][   T10]      neigh_parms_alloc+0x1e5/0x510
[  727.953954][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  727.953954][   T10]      ipv6_find_idev+0x102/0x170
[  727.953954][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  727.953954][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  727.953954][   T10]      netlink_rcv_skb+0x130/0x360
[  727.953954][   T10]      netlink_unicast+0x449/0x710
[  727.953954][   T10]      netlink_sendmsg+0x723/0xbe0
[  727.953954][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  727.953954][   T10]      ___sys_sendmsg+0xee/0x170
[  727.953954][   T10]      __sys_sendmsg+0xcd/0x170
[  727.953954][   T10]      do_syscall_64+0xc6/0x1e0
[  727.953954][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  727.953954][   T10] 
[  738.337879][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  738.338328][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  738.338328][   T10]      dst_init+0x84/0x4a0
[  738.338328][   T10]      dst_alloc+0x97/0x150
[  738.338328][   T10]      ip6_dst_alloc+0x23/0x90
[  738.338328][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  738.338328][   T10]      ip6_pol_route+0x56f/0x840
[  738.338328][   T10]      fib6_rule_lookup+0x456/0x630
[  738.338328][   T10]      ip6_route_input+0x59c/0xa50
[  738.338328][   T10]      ipv6_rcv+0x397/0x810
[  738.338328][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  738.338328][   T10]      process_backlog+0x101/0x620
[  738.338328][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  738.338328][   T10]      net_rx_action+0x495/0xbe0
[  738.338328][   T10]      __do_softirq+0x1b5/0x7f6
[  738.338328][   T10] 
[  738.340301][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  738.340301][   T10]      netdev_get_by_index+0x5e/0x80
[  738.340301][   T10]      fib6_nh_init+0x3d8/0x1580
[  738.340301][   T10]      ip6_route_info_create+0xf18/0x17d0
[  738.340301][   T10]      ip6_route_add+0x1c/0x140
[  738.340301][   T10]      addrconf_prefix_route+0x2a6/0x430
[  738.340301][   T10]      inet6_addr_add+0x4f8/0xa40
[  738.340301][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  738.340301][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  738.340301][   T10]      netlink_rcv_skb+0x130/0x360
[  738.340301][   T10]      netlink_unicast+0x449/0x710
[  738.340301][   T10]      netlink_sendmsg+0x723/0xbe0
[  738.340301][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  738.340301][   T10]      ___sys_sendmsg+0xee/0x170
[  738.340301][   T10]      __sys_sendmsg+0xcd/0x170
[  738.340301][   T10]      do_syscall_64+0xc6/0x1e0
[  738.340301][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  738.340301][   T10] 
[  738.342635][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  738.342635][   T10]      netdev_get_by_index+0x5e/0x80
[  738.342635][   T10]      fib6_nh_init+0x3d8/0x1580
[  738.342635][   T10]      ip6_route_info_create+0xf18/0x17d0
[  738.342635][   T10]      addrconf_f6i_alloc+0x315/0x560
[  738.342635][   T10]      ipv6_add_addr+0x411/0x2000
[  738.342635][   T10]      inet6_addr_add+0x30e/0xa40
[  738.342635][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  738.342635][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  738.342635][   T10]      netlink_rcv_skb+0x130/0x360
[  738.342635][   T10]      netlink_unicast+0x449/0x710
[  738.342635][   T10]      netlink_sendmsg+0x723/0xbe0
[  738.342635][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  738.342635][   T10]      ___sys_sendmsg+0xee/0x170
[  738.342635][   T10]      __sys_sendmsg+0xcd/0x170
[  738.342635][   T10]      do_syscall_64+0xc6/0x1e0
[  738.342635][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  738.342635][   T10] 
[  738.344952][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  738.344952][   T10]      netdev_get_by_index+0x5e/0x80
[  738.344952][   T10]      fib6_nh_init+0x3d8/0x1580
[  738.344952][   T10]      ip6_route_info_create+0xf18/0x17d0
[  738.344952][   T10]      ip6_route_add+0x1c/0x140
[  738.344952][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  738.344952][   T10]      addrconf_add_dev+0xe2/0x170
[  738.344952][   T10]      inet6_addr_add+0x12f/0xa40
[  738.344952][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  738.344952][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  738.344952][   T10]      netlink_rcv_skb+0x130/0x360
[  738.344952][   T10]      netlink_unicast+0x449/0x710
[  738.344952][   T10]      netlink_sendmsg+0x723/0xbe0
[  738.344952][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  738.344952][   T10]      ___sys_sendmsg+0xee/0x170
[  738.344952][   T10]      __sys_sendmsg+0xcd/0x170
[  738.344952][   T10]      do_syscall_64+0xc6/0x1e0
[  738.344952][   T10] 
[  738.347256][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  738.347256][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  738.347256][   T10]      ipv6_find_idev+0x102/0x170
[  738.347256][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  738.347256][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  738.347256][   T10]      netlink_rcv_skb+0x130/0x360
[  738.347256][   T10]      netlink_unicast+0x449/0x710
[  738.347256][   T10]      netlink_sendmsg+0x723/0xbe0
[  738.347256][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  738.347256][   T10]      ___sys_sendmsg+0xee/0x170
[  738.347256][   T10]      __sys_sendmsg+0xcd/0x170
[  738.347256][   T10]      do_syscall_64+0xc6/0x1e0
[  738.347256][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  738.347256][   T10] 
[  738.349080][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  738.349080][   T10]      neigh_parms_alloc+0x1e5/0x510
[  738.349080][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  738.349080][   T10]      ipv6_find_idev+0x102/0x170
[  738.349080][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  738.349080][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  738.349080][   T10]      netlink_rcv_skb+0x130/0x360
[  738.349080][   T10]      netlink_unicast+0x449/0x710
[  738.349080][   T10]      netlink_sendmsg+0x723/0xbe0
[  738.349080][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  738.349080][   T10]      ___sys_sendmsg+0xee/0x170
[  738.349080][   T10]      __sys_sendmsg+0xcd/0x170
[  738.349080][   T10]      do_syscall_64+0xc6/0x1e0
[  738.349080][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  738.349080][   T10] 
[  738.351071][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  738.351339][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  738.351339][   T10]      dst_init+0x84/0x4a0
[  738.351339][   T10]      dst_alloc+0x97/0x150
[  738.351339][   T10]      ip6_dst_alloc+0x23/0x90
[  738.351339][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  738.351339][   T10]      ip6_pol_route+0x56f/0x840
[  738.351339][   T10]      fib6_rule_lookup+0x456/0x630
[  738.351339][   T10]      ip6_route_input+0x59c/0xa50
[  738.351339][   T10]      ipv6_rcv+0x397/0x810
[  738.351339][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  738.351339][   T10]      process_backlog+0x101/0x620
[  738.351339][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  738.351339][   T10]      net_rx_action+0x495/0xbe0
[  738.351339][   T10]      __do_softirq+0x1b5/0x7f6
[  738.351339][   T10] 
[  738.353253][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  738.353253][   T10]      netdev_get_by_index+0x5e/0x80
[  738.353253][   T10]      fib6_nh_init+0x3d8/0x1580
[  738.353253][   T10]      ip6_route_info_create+0xf18/0x17d0
[  738.353253][   T10]      ip6_route_add+0x1c/0x140
[  738.353253][   T10]      addrconf_prefix_route+0x2a6/0x430
[  738.353253][   T10]      inet6_addr_add+0x4f8/0xa40
[  738.353253][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  738.353253][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  738.353253][   T10]      netlink_rcv_skb+0x130/0x360
[  738.353253][   T10]      netlink_unicast+0x449/0x710
[  738.353253][   T10]      netlink_sendmsg+0x723/0xbe0
[  738.353253][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  738.353253][   T10]      ___sys_sendmsg+0xee/0x170
[  738.353253][   T10]      __sys_sendmsg+0xcd/0x170
[  738.353253][   T10]      do_syscall_64+0xc6/0x1e0
[  738.353253][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  738.353253][   T10] 
[  738.355599][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  738.355599][   T10]      netdev_get_by_index+0x5e/0x80
[  738.355599][   T10]      fib6_nh_init+0x3d8/0x1580
[  738.355599][   T10]      ip6_route_info_create+0xf18/0x17d0
[  738.355599][   T10]      addrconf_f6i_alloc+0x315/0x560
[  738.355599][   T10]      ipv6_add_addr+0x411/0x2000
[  738.355599][   T10]      inet6_addr_add+0x30e/0xa40
[  738.355599][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  738.355599][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  738.355599][   T10]      netlink_rcv_skb+0x130/0x360
[  738.355599][   T10]      netlink_unicast+0x449/0x710
[  738.355599][   T10]      netlink_sendmsg+0x723/0xbe0
[  738.355599][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  738.355599][   T10]      ___sys_sendmsg+0xee/0x170
[  738.355599][   T10]      __sys_sendmsg+0xcd/0x170
[  738.355599][   T10]      do_syscall_64+0xc6/0x1e0
[  738.355599][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  738.355599][   T10] 
[  738.357960][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  738.357960][   T10]      netdev_get_by_index+0x5e/0x80
[  738.357960][   T10]      fib6_nh_init+0x3d8/0x1580
[  738.357960][   T10]      ip6_route_info_create+0xf18/0x17d0
[  738.357960][   T10]      ip6_route_add+0x1c/0x140
[  738.357960][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  738.357960][   T10]      addrconf_add_dev+0xe2/0x170
[  738.357960][   T10]      inet6_addr_add+0x12f/0xa40
[  738.357960][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  738.357960][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  738.357960][   T10]      netlink_rcv_skb+0x130/0x360
[  738.357960][   T10]      netlink_unicast+0x449/0x710
[  738.357960][   T10]      netlink_sendmsg+0x723/0xbe0
[  738.357960][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  738.357960][   T10]      ___sys_sendmsg+0xee/0x170
[  738.357960][   T10]      __sys_sendmsg+0xcd/0x170
[  738.357960][   T10]      do_syscall_64+0xc6/0x1e0
[  738.357960][   T10] 
[  738.360194][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  738.360194][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  738.360194][   T10]      ipv6_find_idev+0x102/0x170
[  738.360194][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  738.360194][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  738.360194][   T10]      netlink_rcv_skb+0x130/0x360
[  738.360194][   T10]      netlink_unicast+0x449/0x710
[  738.360194][   T10]      netlink_sendmsg+0x723/0xbe0
[  738.360194][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  738.360194][   T10]      ___sys_sendmsg+0xee/0x170
[  738.360194][   T10]      __sys_sendmsg+0xcd/0x170
[  738.360194][   T10]      do_syscall_64+0xc6/0x1e0
[  738.360194][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  738.360194][   T10] 
[  738.361920][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  738.361920][   T10]      neigh_parms_alloc+0x1e5/0x510
[  738.361920][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  738.361920][   T10]      ipv6_find_idev+0x102/0x170
[  738.361920][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  738.361920][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  738.361920][   T10]      netlink_rcv_skb+0x130/0x360
[  738.361920][   T10]      netlink_unicast+0x449/0x710
[  738.361920][   T10]      netlink_sendmsg+0x723/0xbe0
[  738.361920][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  738.361920][   T10]      ___sys_sendmsg+0xee/0x170
[  738.361920][   T10]      __sys_sendmsg+0xcd/0x170
[  738.361920][   T10]      do_syscall_64+0xc6/0x1e0
[  738.361920][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  738.361920][   T10] 
[  738.601798][   T42] INFO: task modprobe:376 blocked for more than 614 seconds.
[  738.602182][   T42]       Not tainted 6.8.0-virtme #1
[  738.602330][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  738.602559][   T42] task:modprobe        state:D stack:25648 pid:376   tgid:376   ppid:39     flags:0x00004002
[  738.602865][   T42] Call Trace:
[  738.602974][   T42]  <TASK>
[  738.603062][   T42]  __schedule+0x705/0x1ac0
[  738.603219][   T42]  ? __pfx___schedule+0x10/0x10
[  738.603362][   T42]  ? schedule+0x1a5/0x210
[  738.603474][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  738.603621][   T42]  ? mark_lock+0x38/0x3e0
[  738.603743][   T42]  ? do_raw_spin_lock+0x131/0x270
[  738.603892][   T42]  ? schedule+0x1a5/0x210
[  738.604006][   T42]  schedule+0xdf/0x210
[  738.604120][   T42]  schedule_preempt_disabled+0x15/0x30
[  738.604261][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[  738.604412][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[  738.604590][   T42]  ? kasan_save_stack+0x34/0x50
[  738.604744][   T42]  ? kasan_save_stack+0x24/0x50
[  738.604888][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  738.605044][   T42]  ? lock_acquire+0x1c1/0x220
[  738.605189][   T42]  ? register_pernet_subsys+0x1a/0x50
[  738.605341][   T42]  down_write+0x1c9/0x200
[  738.605452][   T42]  ? __pfx_down_write+0x10/0x10
[  738.605595][   T42]  ? __pfx___lock_release+0x10/0x10
[  738.605754][   T42]  ? __pfx_nf_defrag_init+0x10/0x10 [nf_defrag_ipv4]
[  738.605939][   T42]  register_pernet_subsys+0x1a/0x50
[  738.606085][   T42]  nf_defrag_init+0x19/0xff0 [nf_defrag_ipv4]
[  738.606269][   T42]  do_one_initcall+0xc8/0x3f0
[  738.606417][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[  738.606564][   T42]  ? __create_object+0x5e/0xb0
[  738.606734][   T42]  ? kasan_unpoison+0x27/0x60
[  738.606885][   T42]  do_init_module+0x233/0x740
[  738.607043][   T42]  load_module+0x16b5/0x2350
[  738.607199][   T42]  ? __pfx_load_module+0x10/0x10
[  738.607342][   T42]  ? kernel_read_file+0x3d2/0x520
[  738.607494][   T42]  ? kernel_read_file+0x300/0x520
[  738.607642][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[  738.607802][   T42]  ? init_module_from_file+0xd2/0x130
[  738.607946][   T42]  init_module_from_file+0xd2/0x130
[  738.608091][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[  738.608267][   T42]  ? __lock_release+0x103/0x460
[  738.608411][   T42]  ? idempotent_init_module+0x32a/0x620
[  738.608575][   T42]  ? idempotent_init_module+0x32a/0x620
[  738.608730][   T42]  ? do_raw_spin_unlock+0x58/0x220
[  738.608880][   T42]  idempotent_init_module+0x342/0x620
[  738.609027][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[  738.609227][   T42]  __x64_sys_finit_module+0xbe/0x130
[  738.609374][   T42]  do_syscall_64+0xc6/0x1e0
[  738.609523][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  738.609715][   T42] RIP: 0033:0x7f5fd44b2e5d
[  738.609871][   T42] RSP: 002b:00007ffcc85e8928 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  738.610085][   T42] RAX: ffffffffffffffda RBX: 000055d19cb2e8d0 RCX: 00007f5fd44b2e5d
[  738.610297][   T42] RDX: 0000000000000000 RSI: 000055d18f6a6a2a RDI: 0000000000000000
[  738.610507][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 000055d19cb2dc10
[  738.610754][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055d18f6a6a2a
[  738.610972][   T42] R13: 000055d19cb2e880 R14: 000055d19cb2f710 R15: 0000000000000000
[  738.611195][   T42]  </TASK>
[  738.611304][   T42] 
[  738.611304][   T42] Showing all locks held in the system:
[  738.611506][   T42] 3 locks held by kworker/u16:0/10:
[  738.611648][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  738.611944][   T42]  #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  738.612199][   T42]  #2: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[  738.612451][   T42] 2 locks held by kworker/u20:0/39:
[  738.612589][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  738.612882][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  738.613198][   T42] 1 lock held by khungtaskd/42:
[  738.613336][   T42]  #0: ffffffff9b5591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[  738.613594][   T42] 1 lock held by modprobe/376:
[  738.613741][   T42]  #0: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[  738.614026][   T42] 
[  738.614096][   T42] =============================================
[  738.614096][   T42] 
[  748.593780][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  748.594206][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  748.594206][   T10]      dst_init+0x84/0x4a0
[  748.594206][   T10]      dst_alloc+0x97/0x150
[  748.594206][   T10]      ip6_dst_alloc+0x23/0x90
[  748.594206][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  748.594206][   T10]      ip6_pol_route+0x56f/0x840
[  748.594206][   T10]      fib6_rule_lookup+0x456/0x630
[  748.594206][   T10]      ip6_route_input+0x59c/0xa50
[  748.594206][   T10]      ipv6_rcv+0x397/0x810
[  748.594206][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  748.594206][   T10]      process_backlog+0x101/0x620
[  748.594206][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  748.594206][   T10]      net_rx_action+0x495/0xbe0
[  748.594206][   T10]      __do_softirq+0x1b5/0x7f6
[  748.594206][   T10] 
[  748.596090][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  748.596090][   T10]      netdev_get_by_index+0x5e/0x80
[  748.596090][   T10]      fib6_nh_init+0x3d8/0x1580
[  748.596090][   T10]      ip6_route_info_create+0xf18/0x17d0
[  748.596090][   T10]      ip6_route_add+0x1c/0x140
[  748.596090][   T10]      addrconf_prefix_route+0x2a6/0x430
[  748.596090][   T10]      inet6_addr_add+0x4f8/0xa40
[  748.596090][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  748.596090][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  748.596090][   T10]      netlink_rcv_skb+0x130/0x360
[  748.596090][   T10]      netlink_unicast+0x449/0x710
[  748.596090][   T10]      netlink_sendmsg+0x723/0xbe0
[  748.596090][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  748.596090][   T10]      ___sys_sendmsg+0xee/0x170
[  748.596090][   T10]      __sys_sendmsg+0xcd/0x170
[  748.596090][   T10]      do_syscall_64+0xc6/0x1e0
[  748.596090][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  748.596090][   T10] 
[  748.598344][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  748.598344][   T10]      netdev_get_by_index+0x5e/0x80
[  748.598344][   T10]      fib6_nh_init+0x3d8/0x1580
[  748.598344][   T10]      ip6_route_info_create+0xf18/0x17d0
[  748.598344][   T10]      addrconf_f6i_alloc+0x315/0x560
[  748.598344][   T10]      ipv6_add_addr+0x411/0x2000
[  748.598344][   T10]      inet6_addr_add+0x30e/0xa40
[  748.598344][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  748.598344][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  748.598344][   T10]      netlink_rcv_skb+0x130/0x360
[  748.598344][   T10]      netlink_unicast+0x449/0x710
[  748.598344][   T10]      netlink_sendmsg+0x723/0xbe0
[  748.598344][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  748.598344][   T10]      ___sys_sendmsg+0xee/0x170
[  748.598344][   T10]      __sys_sendmsg+0xcd/0x170
[  748.598344][   T10]      do_syscall_64+0xc6/0x1e0
[  748.598344][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  748.598344][   T10] 
[  748.600582][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  748.600582][   T10]      netdev_get_by_index+0x5e/0x80
[  748.600582][   T10]      fib6_nh_init+0x3d8/0x1580
[  748.600582][   T10]      ip6_route_info_create+0xf18/0x17d0
[  748.600582][   T10]      ip6_route_add+0x1c/0x140
[  748.600582][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  748.600582][   T10]      addrconf_add_dev+0xe2/0x170
[  748.600582][   T10]      inet6_addr_add+0x12f/0xa40
[  748.600582][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  748.600582][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  748.600582][   T10]      netlink_rcv_skb+0x130/0x360
[  748.600582][   T10]      netlink_unicast+0x449/0x710
[  748.600582][   T10]      netlink_sendmsg+0x723/0xbe0
[  748.600582][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  748.600582][   T10]      ___sys_sendmsg+0xee/0x170
[  748.600582][   T10]      __sys_sendmsg+0xcd/0x170
[  748.600582][   T10]      do_syscall_64+0xc6/0x1e0
[  748.600582][   T10] 
[  748.602777][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  748.602777][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  748.602777][   T10]      ipv6_find_idev+0x102/0x170
[  748.602777][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  748.602777][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  748.602777][   T10]      netlink_rcv_skb+0x130/0x360
[  748.602777][   T10]      netlink_unicast+0x449/0x710
[  748.602777][   T10]      netlink_sendmsg+0x723/0xbe0
[  748.602777][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  748.602777][   T10]      ___sys_sendmsg+0xee/0x170
[  748.602777][   T10]      __sys_sendmsg+0xcd/0x170
[  748.602777][   T10]      do_syscall_64+0xc6/0x1e0
[  748.602777][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  748.602777][   T10] 
[  748.604481][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  748.604481][   T10]      neigh_parms_alloc+0x1e5/0x510
[  748.604481][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  748.604481][   T10]      ipv6_find_idev+0x102/0x170
[  748.604481][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  748.604481][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  748.604481][   T10]      netlink_rcv_skb+0x130/0x360
[  748.604481][   T10]      netlink_unicast+0x449/0x710
[  748.604481][   T10]      netlink_sendmsg+0x723/0xbe0
[  748.604481][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  748.604481][   T10]      ___sys_sendmsg+0xee/0x170
[  748.604481][   T10]      __sys_sendmsg+0xcd/0x170
[  748.604481][   T10]      do_syscall_64+0xc6/0x1e0
[  748.604481][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  748.604481][   T10] 
[  748.606369][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  748.606633][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  748.606633][   T10]      dst_init+0x84/0x4a0
[  748.606633][   T10]      dst_alloc+0x97/0x150
[  748.606633][   T10]      ip6_dst_alloc+0x23/0x90
[  748.606633][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  748.606633][   T10]      ip6_pol_route+0x56f/0x840
[  748.606633][   T10]      fib6_rule_lookup+0x456/0x630
[  748.606633][   T10]      ip6_route_input+0x59c/0xa50
[  748.606633][   T10]      ipv6_rcv+0x397/0x810
[  748.606633][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  748.606633][   T10]      process_backlog+0x101/0x620
[  748.606633][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  748.606633][   T10]      net_rx_action+0x495/0xbe0
[  748.606633][   T10]      __do_softirq+0x1b5/0x7f6
[  748.606633][   T10] 
[  748.608463][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  748.608463][   T10]      netdev_get_by_index+0x5e/0x80
[  748.608463][   T10]      fib6_nh_init+0x3d8/0x1580
[  748.608463][   T10]      ip6_route_info_create+0xf18/0x17d0
[  748.608463][   T10]      ip6_route_add+0x1c/0x140
[  748.608463][   T10]      addrconf_prefix_route+0x2a6/0x430
[  748.608463][   T10]      inet6_addr_add+0x4f8/0xa40
[  748.608463][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  748.608463][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  748.608463][   T10]      netlink_rcv_skb+0x130/0x360
[  748.608463][   T10]      netlink_unicast+0x449/0x710
[  748.608463][   T10]      netlink_sendmsg+0x723/0xbe0
[  748.608463][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  748.608463][   T10]      ___sys_sendmsg+0xee/0x170
[  748.608463][   T10]      __sys_sendmsg+0xcd/0x170
[  748.608463][   T10]      do_syscall_64+0xc6/0x1e0
[  748.608463][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  748.608463][   T10] 
[  748.610694][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  748.610694][   T10]      netdev_get_by_index+0x5e/0x80
[  748.610694][   T10]      fib6_nh_init+0x3d8/0x1580
[  748.610694][   T10]      ip6_route_info_create+0xf18/0x17d0
[  748.610694][   T10]      addrconf_f6i_alloc+0x315/0x560
[  748.610694][   T10]      ipv6_add_addr+0x411/0x2000
[  748.610694][   T10]      inet6_addr_add+0x30e/0xa40
[  748.610694][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  748.610694][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  748.610694][   T10]      netlink_rcv_skb+0x130/0x360
[  748.610694][   T10]      netlink_unicast+0x449/0x710
[  748.610694][   T10]      netlink_sendmsg+0x723/0xbe0
[  748.610694][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  748.610694][   T10]      ___sys_sendmsg+0xee/0x170
[  748.610694][   T10]      __sys_sendmsg+0xcd/0x170
[  748.610694][   T10]      do_syscall_64+0xc6/0x1e0
[  748.610694][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  748.610694][   T10] 
[  748.612931][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  748.612931][   T10]      netdev_get_by_index+0x5e/0x80
[  748.612931][   T10]      fib6_nh_init+0x3d8/0x1580
[  748.612931][   T10]      ip6_route_info_create+0xf18/0x17d0
[  748.612931][   T10]      ip6_route_add+0x1c/0x140
[  748.612931][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  748.612931][   T10]      addrconf_add_dev+0xe2/0x170
[  748.612931][   T10]      inet6_addr_add+0x12f/0xa40
[  748.612931][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  748.612931][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  748.612931][   T10]      netlink_rcv_skb+0x130/0x360
[  748.612931][   T10]      netlink_unicast+0x449/0x710
[  748.612931][   T10]      netlink_sendmsg+0x723/0xbe0
[  748.612931][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  748.612931][   T10]      ___sys_sendmsg+0xee/0x170
[  748.612931][   T10]      __sys_sendmsg+0xcd/0x170
[  748.612931][   T10]      do_syscall_64+0xc6/0x1e0
[  748.612931][   T10] 
[  748.615124][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  748.615124][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  748.615124][   T10]      ipv6_find_idev+0x102/0x170
[  748.615124][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  748.615124][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  748.615124][   T10]      netlink_rcv_skb+0x130/0x360
[  748.615124][   T10]      netlink_unicast+0x449/0x710
[  748.615124][   T10]      netlink_sendmsg+0x723/0xbe0
[  748.615124][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  748.615124][   T10]      ___sys_sendmsg+0xee/0x170
[  748.615124][   T10]      __sys_sendmsg+0xcd/0x170
[  748.615124][   T10]      do_syscall_64+0xc6/0x1e0
[  748.615124][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  748.615124][   T10] 
[  748.616835][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  748.616835][   T10]      neigh_parms_alloc+0x1e5/0x510
[  748.616835][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  748.616835][   T10]      ipv6_find_idev+0x102/0x170
[  748.616835][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  748.616835][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  748.616835][   T10]      netlink_rcv_skb+0x130/0x360
[  748.616835][   T10]      netlink_unicast+0x449/0x710
[  748.616835][   T10]      netlink_sendmsg+0x723/0xbe0
[  748.616835][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  748.616835][   T10]      ___sys_sendmsg+0xee/0x170
[  748.616835][   T10]      __sys_sendmsg+0xcd/0x170
[  748.616835][   T10]      do_syscall_64+0xc6/0x1e0
[  748.616835][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  748.616835][   T10] 
[  758.873793][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  758.874231][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  758.874231][   T10]      dst_init+0x84/0x4a0
[  758.874231][   T10]      dst_alloc+0x97/0x150
[  758.874231][   T10]      ip6_dst_alloc+0x23/0x90
[  758.874231][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  758.874231][   T10]      ip6_pol_route+0x56f/0x840
[  758.874231][   T10]      fib6_rule_lookup+0x456/0x630
[  758.874231][   T10]      ip6_route_input+0x59c/0xa50
[  758.874231][   T10]      ipv6_rcv+0x397/0x810
[  758.874231][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  758.874231][   T10]      process_backlog+0x101/0x620
[  758.874231][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  758.874231][   T10]      net_rx_action+0x495/0xbe0
[  758.874231][   T10]      __do_softirq+0x1b5/0x7f6
[  758.874231][   T10] 
[  758.876085][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  758.876085][   T10]      netdev_get_by_index+0x5e/0x80
[  758.876085][   T10]      fib6_nh_init+0x3d8/0x1580
[  758.876085][   T10]      ip6_route_info_create+0xf18/0x17d0
[  758.876085][   T10]      ip6_route_add+0x1c/0x140
[  758.876085][   T10]      addrconf_prefix_route+0x2a6/0x430
[  758.876085][   T10]      inet6_addr_add+0x4f8/0xa40
[  758.876085][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  758.876085][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  758.876085][   T10]      netlink_rcv_skb+0x130/0x360
[  758.876085][   T10]      netlink_unicast+0x449/0x710
[  758.876085][   T10]      netlink_sendmsg+0x723/0xbe0
[  758.876085][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  758.876085][   T10]      ___sys_sendmsg+0xee/0x170
[  758.876085][   T10]      __sys_sendmsg+0xcd/0x170
[  758.876085][   T10]      do_syscall_64+0xc6/0x1e0
[  758.876085][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  758.876085][   T10] 
[  758.878332][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  758.878332][   T10]      netdev_get_by_index+0x5e/0x80
[  758.878332][   T10]      fib6_nh_init+0x3d8/0x1580
[  758.878332][   T10]      ip6_route_info_create+0xf18/0x17d0
[  758.878332][   T10]      addrconf_f6i_alloc+0x315/0x560
[  758.878332][   T10]      ipv6_add_addr+0x411/0x2000
[  758.878332][   T10]      inet6_addr_add+0x30e/0xa40
[  758.878332][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  758.878332][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  758.878332][   T10]      netlink_rcv_skb+0x130/0x360
[  758.878332][   T10]      netlink_unicast+0x449/0x710
[  758.878332][   T10]      netlink_sendmsg+0x723/0xbe0
[  758.878332][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  758.878332][   T10]      ___sys_sendmsg+0xee/0x170
[  758.878332][   T10]      __sys_sendmsg+0xcd/0x170
[  758.878332][   T10]      do_syscall_64+0xc6/0x1e0
[  758.878332][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  758.878332][   T10] 
[  758.880572][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  758.880572][   T10]      netdev_get_by_index+0x5e/0x80
[  758.880572][   T10]      fib6_nh_init+0x3d8/0x1580
[  758.880572][   T10]      ip6_route_info_create+0xf18/0x17d0
[  758.880572][   T10]      ip6_route_add+0x1c/0x140
[  758.880572][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  758.880572][   T10]      addrconf_add_dev+0xe2/0x170
[  758.880572][   T10]      inet6_addr_add+0x12f/0xa40
[  758.880572][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  758.880572][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  758.880572][   T10]      netlink_rcv_skb+0x130/0x360
[  758.880572][   T10]      netlink_unicast+0x449/0x710
[  758.880572][   T10]      netlink_sendmsg+0x723/0xbe0
[  758.880572][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  758.880572][   T10]      ___sys_sendmsg+0xee/0x170
[  758.880572][   T10]      __sys_sendmsg+0xcd/0x170
[  758.880572][   T10]      do_syscall_64+0xc6/0x1e0
[  758.880572][   T10] 
[  758.882760][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  758.882760][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  758.882760][   T10]      ipv6_find_idev+0x102/0x170
[  758.882760][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  758.882760][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  758.882760][   T10]      netlink_rcv_skb+0x130/0x360
[  758.882760][   T10]      netlink_unicast+0x449/0x710
[  758.882760][   T10]      netlink_sendmsg+0x723/0xbe0
[  758.882760][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  758.882760][   T10]      ___sys_sendmsg+0xee/0x170
[  758.882760][   T10]      __sys_sendmsg+0xcd/0x170
[  758.882760][   T10]      do_syscall_64+0xc6/0x1e0
[  758.882760][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  758.882760][   T10] 
[  758.884484][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  758.884484][   T10]      neigh_parms_alloc+0x1e5/0x510
[  758.884484][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  758.884484][   T10]      ipv6_find_idev+0x102/0x170
[  758.884484][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  758.884484][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  758.884484][   T10]      netlink_rcv_skb+0x130/0x360
[  758.884484][   T10]      netlink_unicast+0x449/0x710
[  758.884484][   T10]      netlink_sendmsg+0x723/0xbe0
[  758.884484][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  758.884484][   T10]      ___sys_sendmsg+0xee/0x170
[  758.884484][   T10]      __sys_sendmsg+0xcd/0x170
[  758.884484][   T10]      do_syscall_64+0xc6/0x1e0
[  758.884484][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  758.884484][   T10] 
[  758.886368][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  758.886630][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  758.886630][   T10]      dst_init+0x84/0x4a0
[  758.886630][   T10]      dst_alloc+0x97/0x150
[  758.886630][   T10]      ip6_dst_alloc+0x23/0x90
[  758.886630][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  758.886630][   T10]      ip6_pol_route+0x56f/0x840
[  758.886630][   T10]      fib6_rule_lookup+0x456/0x630
[  758.886630][   T10]      ip6_route_input+0x59c/0xa50
[  758.886630][   T10]      ipv6_rcv+0x397/0x810
[  758.886630][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  758.886630][   T10]      process_backlog+0x101/0x620
[  758.886630][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  758.886630][   T10]      net_rx_action+0x495/0xbe0
[  758.886630][   T10]      __do_softirq+0x1b5/0x7f6
[  758.886630][   T10] 
[  758.888458][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  758.888458][   T10]      netdev_get_by_index+0x5e/0x80
[  758.888458][   T10]      fib6_nh_init+0x3d8/0x1580
[  758.888458][   T10]      ip6_route_info_create+0xf18/0x17d0
[  758.888458][   T10]      ip6_route_add+0x1c/0x140
[  758.888458][   T10]      addrconf_prefix_route+0x2a6/0x430
[  758.888458][   T10]      inet6_addr_add+0x4f8/0xa40
[  758.888458][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  758.888458][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  758.888458][   T10]      netlink_rcv_skb+0x130/0x360
[  758.888458][   T10]      netlink_unicast+0x449/0x710
[  758.888458][   T10]      netlink_sendmsg+0x723/0xbe0
[  758.888458][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  758.888458][   T10]      ___sys_sendmsg+0xee/0x170
[  758.888458][   T10]      __sys_sendmsg+0xcd/0x170
[  758.888458][   T10]      do_syscall_64+0xc6/0x1e0
[  758.888458][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  758.888458][   T10] 
[  758.890703][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  758.890703][   T10]      netdev_get_by_index+0x5e/0x80
[  758.890703][   T10]      fib6_nh_init+0x3d8/0x1580
[  758.890703][   T10]      ip6_route_info_create+0xf18/0x17d0
[  758.890703][   T10]      addrconf_f6i_alloc+0x315/0x560
[  758.890703][   T10]      ipv6_add_addr+0x411/0x2000
[  758.890703][   T10]      inet6_addr_add+0x30e/0xa40
[  758.890703][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  758.890703][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  758.890703][   T10]      netlink_rcv_skb+0x130/0x360
[  758.890703][   T10]      netlink_unicast+0x449/0x710
[  758.890703][   T10]      netlink_sendmsg+0x723/0xbe0
[  758.890703][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  758.890703][   T10]      ___sys_sendmsg+0xee/0x170
[  758.890703][   T10]      __sys_sendmsg+0xcd/0x170
[  758.890703][   T10]      do_syscall_64+0xc6/0x1e0
[  758.890703][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  758.890703][   T10] 
[  758.892935][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  758.892935][   T10]      netdev_get_by_index+0x5e/0x80
[  758.892935][   T10]      fib6_nh_init+0x3d8/0x1580
[  758.892935][   T10]      ip6_route_info_create+0xf18/0x17d0
[  758.892935][   T10]      ip6_route_add+0x1c/0x140
[  758.892935][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  758.892935][   T10]      addrconf_add_dev+0xe2/0x170
[  758.892935][   T10]      inet6_addr_add+0x12f/0xa40
[  758.892935][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  758.892935][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  758.892935][   T10]      netlink_rcv_skb+0x130/0x360
[  758.892935][   T10]      netlink_unicast+0x449/0x710
[  758.892935][   T10]      netlink_sendmsg+0x723/0xbe0
[  758.892935][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  758.892935][   T10]      ___sys_sendmsg+0xee/0x170
[  758.892935][   T10]      __sys_sendmsg+0xcd/0x170
[  758.892935][   T10]      do_syscall_64+0xc6/0x1e0
[  758.892935][   T10] 
[  758.895139][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  758.895139][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  758.895139][   T10]      ipv6_find_idev+0x102/0x170
[  758.895139][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  758.895139][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  758.895139][   T10]      netlink_rcv_skb+0x130/0x360
[  758.895139][   T10]      netlink_unicast+0x449/0x710
[  758.895139][   T10]      netlink_sendmsg+0x723/0xbe0
[  758.895139][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  758.895139][   T10]      ___sys_sendmsg+0xee/0x170
[  758.895139][   T10]      __sys_sendmsg+0xcd/0x170
[  758.895139][   T10]      do_syscall_64+0xc6/0x1e0
[  758.895139][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  758.895139][   T10] 
[  758.896854][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  758.896854][   T10]      neigh_parms_alloc+0x1e5/0x510
[  758.896854][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  758.896854][   T10]      ipv6_find_idev+0x102/0x170
[  758.896854][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  758.896854][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  758.896854][   T10]      netlink_rcv_skb+0x130/0x360
[  758.896854][   T10]      netlink_unicast+0x449/0x710
[  758.896854][   T10]      netlink_sendmsg+0x723/0xbe0
[  758.896854][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  758.896854][   T10]      ___sys_sendmsg+0xee/0x170
[  758.896854][   T10]      __sys_sendmsg+0xcd/0x170
[  758.896854][   T10]      do_syscall_64+0xc6/0x1e0
[  758.896854][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  758.896854][   T10] 
[  769.041804][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  769.042305][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  769.042305][   T10]      dst_init+0x84/0x4a0
[  769.042305][   T10]      dst_alloc+0x97/0x150
[  769.042305][   T10]      ip6_dst_alloc+0x23/0x90
[  769.042305][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  769.042305][   T10]      ip6_pol_route+0x56f/0x840
[  769.042305][   T10]      fib6_rule_lookup+0x456/0x630
[  769.042305][   T10]      ip6_route_input+0x59c/0xa50
[  769.042305][   T10]      ipv6_rcv+0x397/0x810
[  769.042305][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  769.042305][   T10]      process_backlog+0x101/0x620
[  769.042305][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  769.042305][   T10]      net_rx_action+0x495/0xbe0
[  769.042305][   T10]      __do_softirq+0x1b5/0x7f6
[  769.042305][   T10] 
[  769.044211][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  769.044211][   T10]      netdev_get_by_index+0x5e/0x80
[  769.044211][   T10]      fib6_nh_init+0x3d8/0x1580
[  769.044211][   T10]      ip6_route_info_create+0xf18/0x17d0
[  769.044211][   T10]      ip6_route_add+0x1c/0x140
[  769.044211][   T10]      addrconf_prefix_route+0x2a6/0x430
[  769.044211][   T10]      inet6_addr_add+0x4f8/0xa40
[  769.044211][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  769.044211][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  769.044211][   T10]      netlink_rcv_skb+0x130/0x360
[  769.044211][   T10]      netlink_unicast+0x449/0x710
[  769.044211][   T10]      netlink_sendmsg+0x723/0xbe0
[  769.044211][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  769.044211][   T10]      ___sys_sendmsg+0xee/0x170
[  769.044211][   T10]      __sys_sendmsg+0xcd/0x170
[  769.044211][   T10]      do_syscall_64+0xc6/0x1e0
[  769.044211][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  769.044211][   T10] 
[  769.046509][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  769.046509][   T10]      netdev_get_by_index+0x5e/0x80
[  769.046509][   T10]      fib6_nh_init+0x3d8/0x1580
[  769.046509][   T10]      ip6_route_info_create+0xf18/0x17d0
[  769.046509][   T10]      addrconf_f6i_alloc+0x315/0x560
[  769.046509][   T10]      ipv6_add_addr+0x411/0x2000
[  769.046509][   T10]      inet6_addr_add+0x30e/0xa40
[  769.046509][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  769.046509][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  769.046509][   T10]      netlink_rcv_skb+0x130/0x360
[  769.046509][   T10]      netlink_unicast+0x449/0x710
[  769.046509][   T10]      netlink_sendmsg+0x723/0xbe0
[  769.046509][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  769.046509][   T10]      ___sys_sendmsg+0xee/0x170
[  769.046509][   T10]      __sys_sendmsg+0xcd/0x170
[  769.046509][   T10]      do_syscall_64+0xc6/0x1e0
[  769.046509][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  769.046509][   T10] 
[  769.048803][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  769.048803][   T10]      netdev_get_by_index+0x5e/0x80
[  769.048803][   T10]      fib6_nh_init+0x3d8/0x1580
[  769.048803][   T10]      ip6_route_info_create+0xf18/0x17d0
[  769.048803][   T10]      ip6_route_add+0x1c/0x140
[  769.048803][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  769.048803][   T10]      addrconf_add_dev+0xe2/0x170
[  769.048803][   T10]      inet6_addr_add+0x12f/0xa40
[  769.048803][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  769.048803][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  769.048803][   T10]      netlink_rcv_skb+0x130/0x360
[  769.048803][   T10]      netlink_unicast+0x449/0x710
[  769.048803][   T10]      netlink_sendmsg+0x723/0xbe0
[  769.048803][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  769.048803][   T10]      ___sys_sendmsg+0xee/0x170
[  769.048803][   T10]      __sys_sendmsg+0xcd/0x170
[  769.048803][   T10]      do_syscall_64+0xc6/0x1e0
[  769.048803][   T10] 
[  769.051063][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  769.051063][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  769.051063][   T10]      ipv6_find_idev+0x102/0x170
[  769.051063][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  769.051063][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  769.051063][   T10]      netlink_rcv_skb+0x130/0x360
[  769.051063][   T10]      netlink_unicast+0x449/0x710
[  769.051063][   T10]      netlink_sendmsg+0x723/0xbe0
[  769.051063][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  769.051063][   T10]      ___sys_sendmsg+0xee/0x170
[  769.051063][   T10]      __sys_sendmsg+0xcd/0x170
[  769.051063][   T10]      do_syscall_64+0xc6/0x1e0
[  769.051063][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  769.051063][   T10] 
[  769.052844][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  769.052844][   T10]      neigh_parms_alloc+0x1e5/0x510
[  769.052844][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  769.052844][   T10]      ipv6_find_idev+0x102/0x170
[  769.052844][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  769.052844][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  769.052844][   T10]      netlink_rcv_skb+0x130/0x360
[  769.052844][   T10]      netlink_unicast+0x449/0x710
[  769.052844][   T10]      netlink_sendmsg+0x723/0xbe0
[  769.052844][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  769.052844][   T10]      ___sys_sendmsg+0xee/0x170
[  769.052844][   T10]      __sys_sendmsg+0xcd/0x170
[  769.052844][   T10]      do_syscall_64+0xc6/0x1e0
[  769.052844][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  769.052844][   T10] 
[  769.054749][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  769.055036][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  769.055036][   T10]      dst_init+0x84/0x4a0
[  769.055036][   T10]      dst_alloc+0x97/0x150
[  769.055036][   T10]      ip6_dst_alloc+0x23/0x90
[  769.055036][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  769.055036][   T10]      ip6_pol_route+0x56f/0x840
[  769.055036][   T10]      fib6_rule_lookup+0x456/0x630
[  769.055036][   T10]      ip6_route_input+0x59c/0xa50
[  769.055036][   T10]      ipv6_rcv+0x397/0x810
[  769.055036][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  769.055036][   T10]      process_backlog+0x101/0x620
[  769.055036][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  769.055036][   T10]      net_rx_action+0x495/0xbe0
[  769.055036][   T10]      __do_softirq+0x1b5/0x7f6
[  769.055036][   T10] 
[  769.056920][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  769.056920][   T10]      netdev_get_by_index+0x5e/0x80
[  769.056920][   T10]      fib6_nh_init+0x3d8/0x1580
[  769.056920][   T10]      ip6_route_info_create+0xf18/0x17d0
[  769.056920][   T10]      ip6_route_add+0x1c/0x140
[  769.056920][   T10]      addrconf_prefix_route+0x2a6/0x430
[  769.056920][   T10]      inet6_addr_add+0x4f8/0xa40
[  769.056920][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  769.056920][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  769.056920][   T10]      netlink_rcv_skb+0x130/0x360
[  769.056920][   T10]      netlink_unicast+0x449/0x710
[  769.056920][   T10]      netlink_sendmsg+0x723/0xbe0
[  769.056920][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  769.056920][   T10]      ___sys_sendmsg+0xee/0x170
[  769.056920][   T10]      __sys_sendmsg+0xcd/0x170
[  769.056920][   T10]      do_syscall_64+0xc6/0x1e0
[  769.056920][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  769.056920][   T10] 
[  769.059248][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  769.059248][   T10]      netdev_get_by_index+0x5e/0x80
[  769.059248][   T10]      fib6_nh_init+0x3d8/0x1580
[  769.059248][   T10]      ip6_route_info_create+0xf18/0x17d0
[  769.059248][   T10]      addrconf_f6i_alloc+0x315/0x560
[  769.059248][   T10]      ipv6_add_addr+0x411/0x2000
[  769.059248][   T10]      inet6_addr_add+0x30e/0xa40
[  769.059248][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  769.059248][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  769.059248][   T10]      netlink_rcv_skb+0x130/0x360
[  769.059248][   T10]      netlink_unicast+0x449/0x710
[  769.059248][   T10]      netlink_sendmsg+0x723/0xbe0
[  769.059248][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  769.059248][   T10]      ___sys_sendmsg+0xee/0x170
[  769.059248][   T10]      __sys_sendmsg+0xcd/0x170
[  769.059248][   T10]      do_syscall_64+0xc6/0x1e0
[  769.059248][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  769.059248][   T10] 
[  769.061510][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  769.061510][   T10]      netdev_get_by_index+0x5e/0x80
[  769.061510][   T10]      fib6_nh_init+0x3d8/0x1580
[  769.061510][   T10]      ip6_route_info_create+0xf18/0x17d0
[  769.061510][   T10]      ip6_route_add+0x1c/0x140
[  769.061510][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  769.061510][   T10]      addrconf_add_dev+0xe2/0x170
[  769.061510][   T10]      inet6_addr_add+0x12f/0xa40
[  769.061510][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  769.061510][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  769.061510][   T10]      netlink_rcv_skb+0x130/0x360
[  769.061510][   T10]      netlink_unicast+0x449/0x710
[  769.061510][   T10]      netlink_sendmsg+0x723/0xbe0
[  769.061510][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  769.061510][   T10]      ___sys_sendmsg+0xee/0x170
[  769.061510][   T10]      __sys_sendmsg+0xcd/0x170
[  769.061510][   T10]      do_syscall_64+0xc6/0x1e0
[  769.061510][   T10] 
[  769.063717][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  769.063717][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  769.063717][   T10]      ipv6_find_idev+0x102/0x170
[  769.063717][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  769.063717][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  769.063717][   T10]      netlink_rcv_skb+0x130/0x360
[  769.063717][   T10]      netlink_unicast+0x449/0x710
[  769.063717][   T10]      netlink_sendmsg+0x723/0xbe0
[  769.063717][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  769.063717][   T10]      ___sys_sendmsg+0xee/0x170
[  769.063717][   T10]      __sys_sendmsg+0xcd/0x170
[  769.063717][   T10]      do_syscall_64+0xc6/0x1e0
[  769.063717][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  769.063717][   T10] 
[  769.065491][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  769.065491][   T10]      neigh_parms_alloc+0x1e5/0x510
[  769.065491][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  769.065491][   T10]      ipv6_find_idev+0x102/0x170
[  769.065491][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  769.065491][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  769.065491][   T10]      netlink_rcv_skb+0x130/0x360
[  769.065491][   T10]      netlink_unicast+0x449/0x710
[  769.065491][   T10]      netlink_sendmsg+0x723/0xbe0
[  769.065491][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  769.065491][   T10]      ___sys_sendmsg+0xee/0x170
[  769.065491][   T10]      __sys_sendmsg+0xcd/0x170
[  769.065491][   T10]      do_syscall_64+0xc6/0x1e0
[  769.065491][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  769.065491][   T10] 
[  779.305804][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  779.306264][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  779.306264][   T10]      dst_init+0x84/0x4a0
[  779.306264][   T10]      dst_alloc+0x97/0x150
[  779.306264][   T10]      ip6_dst_alloc+0x23/0x90
[  779.306264][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  779.306264][   T10]      ip6_pol_route+0x56f/0x840
[  779.306264][   T10]      fib6_rule_lookup+0x456/0x630
[  779.306264][   T10]      ip6_route_input+0x59c/0xa50
[  779.306264][   T10]      ipv6_rcv+0x397/0x810
[  779.306264][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  779.306264][   T10]      process_backlog+0x101/0x620
[  779.306264][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  779.306264][   T10]      net_rx_action+0x495/0xbe0
[  779.306264][   T10]      __do_softirq+0x1b5/0x7f6
[  779.306264][   T10] 
[  779.308129][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  779.308129][   T10]      netdev_get_by_index+0x5e/0x80
[  779.308129][   T10]      fib6_nh_init+0x3d8/0x1580
[  779.308129][   T10]      ip6_route_info_create+0xf18/0x17d0
[  779.308129][   T10]      ip6_route_add+0x1c/0x140
[  779.308129][   T10]      addrconf_prefix_route+0x2a6/0x430
[  779.308129][   T10]      inet6_addr_add+0x4f8/0xa40
[  779.308129][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  779.308129][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  779.308129][   T10]      netlink_rcv_skb+0x130/0x360
[  779.308129][   T10]      netlink_unicast+0x449/0x710
[  779.308129][   T10]      netlink_sendmsg+0x723/0xbe0
[  779.308129][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  779.308129][   T10]      ___sys_sendmsg+0xee/0x170
[  779.308129][   T10]      __sys_sendmsg+0xcd/0x170
[  779.308129][   T10]      do_syscall_64+0xc6/0x1e0
[  779.308129][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  779.308129][   T10] 
[  779.310368][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  779.310368][   T10]      netdev_get_by_index+0x5e/0x80
[  779.310368][   T10]      fib6_nh_init+0x3d8/0x1580
[  779.310368][   T10]      ip6_route_info_create+0xf18/0x17d0
[  779.310368][   T10]      addrconf_f6i_alloc+0x315/0x560
[  779.310368][   T10]      ipv6_add_addr+0x411/0x2000
[  779.310368][   T10]      inet6_addr_add+0x30e/0xa40
[  779.310368][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  779.310368][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  779.310368][   T10]      netlink_rcv_skb+0x130/0x360
[  779.310368][   T10]      netlink_unicast+0x449/0x710
[  779.310368][   T10]      netlink_sendmsg+0x723/0xbe0
[  779.310368][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  779.310368][   T10]      ___sys_sendmsg+0xee/0x170
[  779.310368][   T10]      __sys_sendmsg+0xcd/0x170
[  779.310368][   T10]      do_syscall_64+0xc6/0x1e0
[  779.310368][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  779.310368][   T10] 
[  779.312983][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  779.312983][   T10]      netdev_get_by_index+0x5e/0x80
[  779.312983][   T10]      fib6_nh_init+0x3d8/0x1580
[  779.312983][   T10]      ip6_route_info_create+0xf18/0x17d0
[  779.312983][   T10]      ip6_route_add+0x1c/0x140
[  779.312983][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  779.312983][   T10]      addrconf_add_dev+0xe2/0x170
[  779.312983][   T10]      inet6_addr_add+0x12f/0xa40
[  779.312983][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  779.312983][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  779.312983][   T10]      netlink_rcv_skb+0x130/0x360
[  779.312983][   T10]      netlink_unicast+0x449/0x710
[  779.312983][   T10]      netlink_sendmsg+0x723/0xbe0
[  779.312983][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  779.312983][   T10]      ___sys_sendmsg+0xee/0x170
[  779.312983][   T10]      __sys_sendmsg+0xcd/0x170
[  779.312983][   T10]      do_syscall_64+0xc6/0x1e0
[  779.312983][   T10] 
[  779.316107][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  779.316107][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  779.316107][   T10]      ipv6_find_idev+0x102/0x170
[  779.316107][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  779.316107][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  779.316107][   T10]      netlink_rcv_skb+0x130/0x360
[  779.316107][   T10]      netlink_unicast+0x449/0x710
[  779.316107][   T10]      netlink_sendmsg+0x723/0xbe0
[  779.316107][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  779.316107][   T10]      ___sys_sendmsg+0xee/0x170
[  779.316107][   T10]      __sys_sendmsg+0xcd/0x170
[  779.316107][   T10]      do_syscall_64+0xc6/0x1e0
[  779.316107][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  779.316107][   T10] 
[  779.318555][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  779.318555][   T10]      neigh_parms_alloc+0x1e5/0x510
[  779.318555][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  779.318555][   T10]      ipv6_find_idev+0x102/0x170
[  779.318555][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  779.318555][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  779.318555][   T10]      netlink_rcv_skb+0x130/0x360
[  779.318555][   T10]      netlink_unicast+0x449/0x710
[  779.318555][   T10]      netlink_sendmsg+0x723/0xbe0
[  779.318555][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  779.318555][   T10]      ___sys_sendmsg+0xee/0x170
[  779.318555][   T10]      __sys_sendmsg+0xcd/0x170
[  779.318555][   T10]      do_syscall_64+0xc6/0x1e0
[  779.318555][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  779.318555][   T10] 
[  779.321221][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  779.321569][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  779.321569][   T10]      dst_init+0x84/0x4a0
[  779.321569][   T10]      dst_alloc+0x97/0x150
[  779.321569][   T10]      ip6_dst_alloc+0x23/0x90
[  779.321569][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  779.321569][   T10]      ip6_pol_route+0x56f/0x840
[  779.321569][   T10]      fib6_rule_lookup+0x456/0x630
[  779.321569][   T10]      ip6_route_input+0x59c/0xa50
[  779.321569][   T10]      ipv6_rcv+0x397/0x810
[  779.321569][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  779.321569][   T10]      process_backlog+0x101/0x620
[  779.321569][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  779.321569][   T10]      net_rx_action+0x495/0xbe0
[  779.321569][   T10]      __do_softirq+0x1b5/0x7f6
[  779.321569][   T10] 
[  779.324204][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  779.324204][   T10]      netdev_get_by_index+0x5e/0x80
[  779.324204][   T10]      fib6_nh_init+0x3d8/0x1580
[  779.324204][   T10]      ip6_route_info_create+0xf18/0x17d0
[  779.324204][   T10]      ip6_route_add+0x1c/0x140
[  779.324204][   T10]      addrconf_prefix_route+0x2a6/0x430
[  779.324204][   T10]      inet6_addr_add+0x4f8/0xa40
[  779.324204][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  779.324204][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  779.324204][   T10]      netlink_rcv_skb+0x130/0x360
[  779.324204][   T10]      netlink_unicast+0x449/0x710
[  779.324204][   T10]      netlink_sendmsg+0x723/0xbe0
[  779.324204][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  779.324204][   T10]      ___sys_sendmsg+0xee/0x170
[  779.324204][   T10]      __sys_sendmsg+0xcd/0x170
[  779.324204][   T10]      do_syscall_64+0xc6/0x1e0
[  779.324204][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  779.324204][   T10] 
[  779.327413][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  779.327413][   T10]      netdev_get_by_index+0x5e/0x80
[  779.327413][   T10]      fib6_nh_init+0x3d8/0x1580
[  779.327413][   T10]      ip6_route_info_create+0xf18/0x17d0
[  779.327413][   T10]      addrconf_f6i_alloc+0x315/0x560
[  779.327413][   T10]      ipv6_add_addr+0x411/0x2000
[  779.327413][   T10]      inet6_addr_add+0x30e/0xa40
[  779.327413][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  779.327413][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  779.327413][   T10]      netlink_rcv_skb+0x130/0x360
[  779.327413][   T10]      netlink_unicast+0x449/0x710
[  779.327413][   T10]      netlink_sendmsg+0x723/0xbe0
[  779.327413][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  779.327413][   T10]      ___sys_sendmsg+0xee/0x170
[  779.327413][   T10]      __sys_sendmsg+0xcd/0x170
[  779.327413][   T10]      do_syscall_64+0xc6/0x1e0
[  779.327413][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  779.327413][   T10] 
[  779.330616][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  779.330616][   T10]      netdev_get_by_index+0x5e/0x80
[  779.330616][   T10]      fib6_nh_init+0x3d8/0x1580
[  779.330616][   T10]      ip6_route_info_create+0xf18/0x17d0
[  779.330616][   T10]      ip6_route_add+0x1c/0x140
[  779.330616][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  779.330616][   T10]      addrconf_add_dev+0xe2/0x170
[  779.330616][   T10]      inet6_addr_add+0x12f/0xa40
[  779.330616][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  779.330616][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  779.330616][   T10]      netlink_rcv_skb+0x130/0x360
[  779.330616][   T10]      netlink_unicast+0x449/0x710
[  779.330616][   T10]      netlink_sendmsg+0x723/0xbe0
[  779.330616][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  779.330616][   T10]      ___sys_sendmsg+0xee/0x170
[  779.330616][   T10]      __sys_sendmsg+0xcd/0x170
[  779.330616][   T10]      do_syscall_64+0xc6/0x1e0
[  779.330616][   T10] 
[  779.333787][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  779.333787][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  779.333787][   T10]      ipv6_find_idev+0x102/0x170
[  779.333787][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  779.333787][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  779.333787][   T10]      netlink_rcv_skb+0x130/0x360
[  779.333787][   T10]      netlink_unicast+0x449/0x710
[  779.333787][   T10]      netlink_sendmsg+0x723/0xbe0
[  779.333787][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  779.333787][   T10]      ___sys_sendmsg+0xee/0x170
[  779.333787][   T10]      __sys_sendmsg+0xcd/0x170
[  779.333787][   T10]      do_syscall_64+0xc6/0x1e0
[  779.333787][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  779.333787][   T10] 
[  779.336253][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  779.336253][   T10]      neigh_parms_alloc+0x1e5/0x510
[  779.336253][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  779.336253][   T10]      ipv6_find_idev+0x102/0x170
[  779.336253][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  779.336253][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  779.336253][   T10]      netlink_rcv_skb+0x130/0x360
[  779.336253][   T10]      netlink_unicast+0x449/0x710
[  779.336253][   T10]      netlink_sendmsg+0x723/0xbe0
[  779.336253][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  779.336253][   T10]      ___sys_sendmsg+0xee/0x170
[  779.336253][   T10]      __sys_sendmsg+0xcd/0x170
[  779.336253][   T10]      do_syscall_64+0xc6/0x1e0
[  779.336253][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  779.336253][   T10] 
[  789.577861][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  789.578650][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  789.578650][   T10]      dst_init+0x84/0x4a0
[  789.578650][   T10]      dst_alloc+0x97/0x150
[  789.578650][   T10]      ip6_dst_alloc+0x23/0x90
[  789.578650][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  789.578650][   T10]      ip6_pol_route+0x56f/0x840
[  789.578650][   T10]      fib6_rule_lookup+0x456/0x630
[  789.578650][   T10]      ip6_route_input+0x59c/0xa50
[  789.578650][   T10]      ipv6_rcv+0x397/0x810
[  789.578650][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  789.578650][   T10]      process_backlog+0x101/0x620
[  789.578650][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  789.578650][   T10]      net_rx_action+0x495/0xbe0
[  789.578650][   T10]      __do_softirq+0x1b5/0x7f6
[  789.578650][   T10] 
[  789.580585][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  789.580585][   T10]      netdev_get_by_index+0x5e/0x80
[  789.580585][   T10]      fib6_nh_init+0x3d8/0x1580
[  789.580585][   T10]      ip6_route_info_create+0xf18/0x17d0
[  789.580585][   T10]      ip6_route_add+0x1c/0x140
[  789.580585][   T10]      addrconf_prefix_route+0x2a6/0x430
[  789.580585][   T10]      inet6_addr_add+0x4f8/0xa40
[  789.580585][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  789.580585][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  789.580585][   T10]      netlink_rcv_skb+0x130/0x360
[  789.580585][   T10]      netlink_unicast+0x449/0x710
[  789.580585][   T10]      netlink_sendmsg+0x723/0xbe0
[  789.580585][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  789.580585][   T10]      ___sys_sendmsg+0xee/0x170
[  789.580585][   T10]      __sys_sendmsg+0xcd/0x170
[  789.580585][   T10]      do_syscall_64+0xc6/0x1e0
[  789.580585][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  789.580585][   T10] 
[  789.583050][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  789.583050][   T10]      netdev_get_by_index+0x5e/0x80
[  789.583050][   T10]      fib6_nh_init+0x3d8/0x1580
[  789.583050][   T10]      ip6_route_info_create+0xf18/0x17d0
[  789.583050][   T10]      addrconf_f6i_alloc+0x315/0x560
[  789.583050][   T10]      ipv6_add_addr+0x411/0x2000
[  789.583050][   T10]      inet6_addr_add+0x30e/0xa40
[  789.583050][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  789.583050][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  789.583050][   T10]      netlink_rcv_skb+0x130/0x360
[  789.583050][   T10]      netlink_unicast+0x449/0x710
[  789.583050][   T10]      netlink_sendmsg+0x723/0xbe0
[  789.583050][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  789.583050][   T10]      ___sys_sendmsg+0xee/0x170
[  789.583050][   T10]      __sys_sendmsg+0xcd/0x170
[  789.583050][   T10]      do_syscall_64+0xc6/0x1e0
[  789.583050][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  789.583050][   T10] 
[  789.585408][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  789.585408][   T10]      netdev_get_by_index+0x5e/0x80
[  789.585408][   T10]      fib6_nh_init+0x3d8/0x1580
[  789.585408][   T10]      ip6_route_info_create+0xf18/0x17d0
[  789.585408][   T10]      ip6_route_add+0x1c/0x140
[  789.585408][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  789.585408][   T10]      addrconf_add_dev+0xe2/0x170
[  789.585408][   T10]      inet6_addr_add+0x12f/0xa40
[  789.585408][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  789.585408][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  789.585408][   T10]      netlink_rcv_skb+0x130/0x360
[  789.585408][   T10]      netlink_unicast+0x449/0x710
[  789.585408][   T10]      netlink_sendmsg+0x723/0xbe0
[  789.585408][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  789.585408][   T10]      ___sys_sendmsg+0xee/0x170
[  789.585408][   T10]      __sys_sendmsg+0xcd/0x170
[  789.585408][   T10]      do_syscall_64+0xc6/0x1e0
[  789.585408][   T10] 
[  789.587643][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  789.587643][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  789.587643][   T10]      ipv6_find_idev+0x102/0x170
[  789.587643][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  789.587643][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  789.587643][   T10]      netlink_rcv_skb+0x130/0x360
[  789.587643][   T10]      netlink_unicast+0x449/0x710
[  789.587643][   T10]      netlink_sendmsg+0x723/0xbe0
[  789.587643][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  789.587643][   T10]      ___sys_sendmsg+0xee/0x170
[  789.587643][   T10]      __sys_sendmsg+0xcd/0x170
[  789.587643][   T10]      do_syscall_64+0xc6/0x1e0
[  789.587643][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  789.587643][   T10] 
[  789.589382][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  789.589382][   T10]      neigh_parms_alloc+0x1e5/0x510
[  789.589382][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  789.589382][   T10]      ipv6_find_idev+0x102/0x170
[  789.589382][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  789.589382][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  789.589382][   T10]      netlink_rcv_skb+0x130/0x360
[  789.589382][   T10]      netlink_unicast+0x449/0x710
[  789.589382][   T10]      netlink_sendmsg+0x723/0xbe0
[  789.589382][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  789.589382][   T10]      ___sys_sendmsg+0xee/0x170
[  789.589382][   T10]      __sys_sendmsg+0xcd/0x170
[  789.589382][   T10]      do_syscall_64+0xc6/0x1e0
[  789.589382][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  789.589382][   T10] 
[  789.591293][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  789.591595][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  789.591595][   T10]      dst_init+0x84/0x4a0
[  789.591595][   T10]      dst_alloc+0x97/0x150
[  789.591595][   T10]      ip6_dst_alloc+0x23/0x90
[  789.591595][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  789.591595][   T10]      ip6_pol_route+0x56f/0x840
[  789.591595][   T10]      fib6_rule_lookup+0x456/0x630
[  789.591595][   T10]      ip6_route_input+0x59c/0xa50
[  789.591595][   T10]      ipv6_rcv+0x397/0x810
[  789.591595][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  789.591595][   T10]      process_backlog+0x101/0x620
[  789.591595][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  789.591595][   T10]      net_rx_action+0x495/0xbe0
[  789.591595][   T10]      __do_softirq+0x1b5/0x7f6
[  789.591595][   T10] 
[  789.593933][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  789.593933][   T10]      netdev_get_by_index+0x5e/0x80
[  789.593933][   T10]      fib6_nh_init+0x3d8/0x1580
[  789.593933][   T10]      ip6_route_info_create+0xf18/0x17d0
[  789.593933][   T10]      ip6_route_add+0x1c/0x140
[  789.593933][   T10]      addrconf_prefix_route+0x2a6/0x430
[  789.593933][   T10]      inet6_addr_add+0x4f8/0xa40
[  789.593933][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  789.593933][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  789.593933][   T10]      netlink_rcv_skb+0x130/0x360
[  789.593933][   T10]      netlink_unicast+0x449/0x710
[  789.593933][   T10]      netlink_sendmsg+0x723/0xbe0
[  789.593933][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  789.593933][   T10]      ___sys_sendmsg+0xee/0x170
[  789.593933][   T10]      __sys_sendmsg+0xcd/0x170
[  789.593933][   T10]      do_syscall_64+0xc6/0x1e0
[  789.593933][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  789.593933][   T10] 
[  789.597150][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  789.597150][   T10]      netdev_get_by_index+0x5e/0x80
[  789.597150][   T10]      fib6_nh_init+0x3d8/0x1580
[  789.597150][   T10]      ip6_route_info_create+0xf18/0x17d0
[  789.597150][   T10]      addrconf_f6i_alloc+0x315/0x560
[  789.597150][   T10]      ipv6_add_addr+0x411/0x2000
[  789.597150][   T10]      inet6_addr_add+0x30e/0xa40
[  789.597150][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  789.597150][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  789.597150][   T10]      netlink_rcv_skb+0x130/0x360
[  789.597150][   T10]      netlink_unicast+0x449/0x710
[  789.597150][   T10]      netlink_sendmsg+0x723/0xbe0
[  789.597150][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  789.597150][   T10]      ___sys_sendmsg+0xee/0x170
[  789.597150][   T10]      __sys_sendmsg+0xcd/0x170
[  789.597150][   T10]      do_syscall_64+0xc6/0x1e0
[  789.597150][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  789.597150][   T10] 
[  789.600388][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  789.600388][   T10]      netdev_get_by_index+0x5e/0x80
[  789.600388][   T10]      fib6_nh_init+0x3d8/0x1580
[  789.600388][   T10]      ip6_route_info_create+0xf18/0x17d0
[  789.600388][   T10]      ip6_route_add+0x1c/0x140
[  789.600388][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  789.600388][   T10]      addrconf_add_dev+0xe2/0x170
[  789.600388][   T10]      inet6_addr_add+0x12f/0xa40
[  789.600388][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  789.600388][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  789.600388][   T10]      netlink_rcv_skb+0x130/0x360
[  789.600388][   T10]      netlink_unicast+0x449/0x710
[  789.600388][   T10]      netlink_sendmsg+0x723/0xbe0
[  789.600388][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  789.600388][   T10]      ___sys_sendmsg+0xee/0x170
[  789.600388][   T10]      __sys_sendmsg+0xcd/0x170
[  789.600388][   T10]      do_syscall_64+0xc6/0x1e0
[  789.600388][   T10] 
[  789.603573][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  789.603573][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  789.603573][   T10]      ipv6_find_idev+0x102/0x170
[  789.603573][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  789.603573][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  789.603573][   T10]      netlink_rcv_skb+0x130/0x360
[  789.603573][   T10]      netlink_unicast+0x449/0x710
[  789.603573][   T10]      netlink_sendmsg+0x723/0xbe0
[  789.603573][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  789.603573][   T10]      ___sys_sendmsg+0xee/0x170
[  789.603573][   T10]      __sys_sendmsg+0xcd/0x170
[  789.603573][   T10]      do_syscall_64+0xc6/0x1e0
[  789.603573][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  789.603573][   T10] 
[  789.606071][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  789.606071][   T10]      neigh_parms_alloc+0x1e5/0x510
[  789.606071][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  789.606071][   T10]      ipv6_find_idev+0x102/0x170
[  789.606071][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  789.606071][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  789.606071][   T10]      netlink_rcv_skb+0x130/0x360
[  789.606071][   T10]      netlink_unicast+0x449/0x710
[  789.606071][   T10]      netlink_sendmsg+0x723/0xbe0
[  789.606071][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  789.606071][   T10]      ___sys_sendmsg+0xee/0x170
[  789.606071][   T10]      __sys_sendmsg+0xcd/0x170
[  789.606071][   T10]      do_syscall_64+0xc6/0x1e0
[  789.606071][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  789.606071][   T10] 
[  799.609858][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  799.610474][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  799.610474][   T10]      dst_init+0x84/0x4a0
[  799.610474][   T10]      dst_alloc+0x97/0x150
[  799.610474][   T10]      ip6_dst_alloc+0x23/0x90
[  799.610474][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  799.610474][   T10]      ip6_pol_route+0x56f/0x840
[  799.610474][   T10]      fib6_rule_lookup+0x456/0x630
[  799.610474][   T10]      ip6_route_input+0x59c/0xa50
[  799.610474][   T10]      ipv6_rcv+0x397/0x810
[  799.610474][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  799.610474][   T10]      process_backlog+0x101/0x620
[  799.610474][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  799.610474][   T10]      net_rx_action+0x495/0xbe0
[  799.610474][   T10]      __do_softirq+0x1b5/0x7f6
[  799.610474][   T10] 
[  799.612421][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  799.612421][   T10]      netdev_get_by_index+0x5e/0x80
[  799.612421][   T10]      fib6_nh_init+0x3d8/0x1580
[  799.612421][   T10]      ip6_route_info_create+0xf18/0x17d0
[  799.612421][   T10]      ip6_route_add+0x1c/0x140
[  799.612421][   T10]      addrconf_prefix_route+0x2a6/0x430
[  799.612421][   T10]      inet6_addr_add+0x4f8/0xa40
[  799.612421][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  799.612421][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  799.612421][   T10]      netlink_rcv_skb+0x130/0x360
[  799.612421][   T10]      netlink_unicast+0x449/0x710
[  799.612421][   T10]      netlink_sendmsg+0x723/0xbe0
[  799.612421][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  799.612421][   T10]      ___sys_sendmsg+0xee/0x170
[  799.612421][   T10]      __sys_sendmsg+0xcd/0x170
[  799.612421][   T10]      do_syscall_64+0xc6/0x1e0
[  799.612421][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  799.612421][   T10] 
[  799.614654][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  799.614654][   T10]      netdev_get_by_index+0x5e/0x80
[  799.614654][   T10]      fib6_nh_init+0x3d8/0x1580
[  799.614654][   T10]      ip6_route_info_create+0xf18/0x17d0
[  799.614654][   T10]      addrconf_f6i_alloc+0x315/0x560
[  799.614654][   T10]      ipv6_add_addr+0x411/0x2000
[  799.614654][   T10]      inet6_addr_add+0x30e/0xa40
[  799.614654][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  799.614654][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  799.614654][   T10]      netlink_rcv_skb+0x130/0x360
[  799.614654][   T10]      netlink_unicast+0x449/0x710
[  799.614654][   T10]      netlink_sendmsg+0x723/0xbe0
[  799.614654][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  799.614654][   T10]      ___sys_sendmsg+0xee/0x170
[  799.614654][   T10]      __sys_sendmsg+0xcd/0x170
[  799.614654][   T10]      do_syscall_64+0xc6/0x1e0
[  799.614654][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  799.614654][   T10] 
[  799.616904][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  799.616904][   T10]      netdev_get_by_index+0x5e/0x80
[  799.616904][   T10]      fib6_nh_init+0x3d8/0x1580
[  799.616904][   T10]      ip6_route_info_create+0xf18/0x17d0
[  799.616904][   T10]      ip6_route_add+0x1c/0x140
[  799.616904][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  799.616904][   T10]      addrconf_add_dev+0xe2/0x170
[  799.616904][   T10]      inet6_addr_add+0x12f/0xa40
[  799.616904][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  799.616904][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  799.616904][   T10]      netlink_rcv_skb+0x130/0x360
[  799.616904][   T10]      netlink_unicast+0x449/0x710
[  799.616904][   T10]      netlink_sendmsg+0x723/0xbe0
[  799.616904][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  799.616904][   T10]      ___sys_sendmsg+0xee/0x170
[  799.616904][   T10]      __sys_sendmsg+0xcd/0x170
[  799.616904][   T10]      do_syscall_64+0xc6/0x1e0
[  799.616904][   T10] 
[  799.619126][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  799.619126][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  799.619126][   T10]      ipv6_find_idev+0x102/0x170
[  799.619126][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  799.619126][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  799.619126][   T10]      netlink_rcv_skb+0x130/0x360
[  799.619126][   T10]      netlink_unicast+0x449/0x710
[  799.619126][   T10]      netlink_sendmsg+0x723/0xbe0
[  799.619126][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  799.619126][   T10]      ___sys_sendmsg+0xee/0x170
[  799.619126][   T10]      __sys_sendmsg+0xcd/0x170
[  799.619126][   T10]      do_syscall_64+0xc6/0x1e0
[  799.619126][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  799.619126][   T10] 
[  799.620880][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  799.620880][   T10]      neigh_parms_alloc+0x1e5/0x510
[  799.620880][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  799.620880][   T10]      ipv6_find_idev+0x102/0x170
[  799.620880][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  799.620880][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  799.620880][   T10]      netlink_rcv_skb+0x130/0x360
[  799.620880][   T10]      netlink_unicast+0x449/0x710
[  799.620880][   T10]      netlink_sendmsg+0x723/0xbe0
[  799.620880][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  799.620880][   T10]      ___sys_sendmsg+0xee/0x170
[  799.620880][   T10]      __sys_sendmsg+0xcd/0x170
[  799.620880][   T10]      do_syscall_64+0xc6/0x1e0
[  799.620880][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  799.620880][   T10] 
[  799.622732][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  799.623037][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  799.623037][   T10]      dst_init+0x84/0x4a0
[  799.623037][   T10]      dst_alloc+0x97/0x150
[  799.623037][   T10]      ip6_dst_alloc+0x23/0x90
[  799.623037][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  799.623037][   T10]      ip6_pol_route+0x56f/0x840
[  799.623037][   T10]      fib6_rule_lookup+0x456/0x630
[  799.623037][   T10]      ip6_route_input+0x59c/0xa50
[  799.623037][   T10]      ipv6_rcv+0x397/0x810
[  799.623037][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  799.623037][   T10]      process_backlog+0x101/0x620
[  799.623037][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  799.623037][   T10]      net_rx_action+0x495/0xbe0
[  799.623037][   T10]      __do_softirq+0x1b5/0x7f6
[  799.623037][   T10] 
[  799.624894][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  799.624894][   T10]      netdev_get_by_index+0x5e/0x80
[  799.624894][   T10]      fib6_nh_init+0x3d8/0x1580
[  799.624894][   T10]      ip6_route_info_create+0xf18/0x17d0
[  799.624894][   T10]      ip6_route_add+0x1c/0x140
[  799.624894][   T10]      addrconf_prefix_route+0x2a6/0x430
[  799.624894][   T10]      inet6_addr_add+0x4f8/0xa40
[  799.624894][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  799.624894][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  799.624894][   T10]      netlink_rcv_skb+0x130/0x360
[  799.624894][   T10]      netlink_unicast+0x449/0x710
[  799.624894][   T10]      netlink_sendmsg+0x723/0xbe0
[  799.624894][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  799.624894][   T10]      ___sys_sendmsg+0xee/0x170
[  799.624894][   T10]      __sys_sendmsg+0xcd/0x170
[  799.624894][   T10]      do_syscall_64+0xc6/0x1e0
[  799.624894][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  799.624894][   T10] 
[  799.627128][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  799.627128][   T10]      netdev_get_by_index+0x5e/0x80
[  799.627128][   T10]      fib6_nh_init+0x3d8/0x1580
[  799.627128][   T10]      ip6_route_info_create+0xf18/0x17d0
[  799.627128][   T10]      addrconf_f6i_alloc+0x315/0x560
[  799.627128][   T10]      ipv6_add_addr+0x411/0x2000
[  799.627128][   T10]      inet6_addr_add+0x30e/0xa40
[  799.627128][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  799.627128][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  799.627128][   T10]      netlink_rcv_skb+0x130/0x360
[  799.627128][   T10]      netlink_unicast+0x449/0x710
[  799.627128][   T10]      netlink_sendmsg+0x723/0xbe0
[  799.627128][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  799.627128][   T10]      ___sys_sendmsg+0xee/0x170
[  799.627128][   T10]      __sys_sendmsg+0xcd/0x170
[  799.627128][   T10]      do_syscall_64+0xc6/0x1e0
[  799.627128][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  799.627128][   T10] 
[  799.629372][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  799.629372][   T10]      netdev_get_by_index+0x5e/0x80
[  799.629372][   T10]      fib6_nh_init+0x3d8/0x1580
[  799.629372][   T10]      ip6_route_info_create+0xf18/0x17d0
[  799.629372][   T10]      ip6_route_add+0x1c/0x140
[  799.629372][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  799.629372][   T10]      addrconf_add_dev+0xe2/0x170
[  799.629372][   T10]      inet6_addr_add+0x12f/0xa40
[  799.629372][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  799.629372][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  799.629372][   T10]      netlink_rcv_skb+0x130/0x360
[  799.629372][   T10]      netlink_unicast+0x449/0x710
[  799.629372][   T10]      netlink_sendmsg+0x723/0xbe0
[  799.629372][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  799.629372][   T10]      ___sys_sendmsg+0xee/0x170
[  799.629372][   T10]      __sys_sendmsg+0xcd/0x170
[  799.629372][   T10]      do_syscall_64+0xc6/0x1e0
[  799.629372][   T10] 
[  799.631615][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  799.631615][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  799.631615][   T10]      ipv6_find_idev+0x102/0x170
[  799.631615][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  799.631615][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  799.631615][   T10]      netlink_rcv_skb+0x130/0x360
[  799.631615][   T10]      netlink_unicast+0x449/0x710
[  799.631615][   T10]      netlink_sendmsg+0x723/0xbe0
[  799.631615][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  799.631615][   T10]      ___sys_sendmsg+0xee/0x170
[  799.631615][   T10]      __sys_sendmsg+0xcd/0x170
[  799.631615][   T10]      do_syscall_64+0xc6/0x1e0
[  799.631615][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  799.631615][   T10] 
[  799.633336][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  799.633336][   T10]      neigh_parms_alloc+0x1e5/0x510
[  799.633336][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  799.633336][   T10]      ipv6_find_idev+0x102/0x170
[  799.633336][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  799.633336][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  799.633336][   T10]      netlink_rcv_skb+0x130/0x360
[  799.633336][   T10]      netlink_unicast+0x449/0x710
[  799.633336][   T10]      netlink_sendmsg+0x723/0xbe0
[  799.633336][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  799.633336][   T10]      ___sys_sendmsg+0xee/0x170
[  799.633336][   T10]      __sys_sendmsg+0xcd/0x170
[  799.633336][   T10]      do_syscall_64+0xc6/0x1e0
[  799.633336][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  799.633336][   T10] 
[  809.873811][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  809.874256][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  809.874256][   T10]      dst_init+0x84/0x4a0
[  809.874256][   T10]      dst_alloc+0x97/0x150
[  809.874256][   T10]      ip6_dst_alloc+0x23/0x90
[  809.874256][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  809.874256][   T10]      ip6_pol_route+0x56f/0x840
[  809.874256][   T10]      fib6_rule_lookup+0x456/0x630
[  809.874256][   T10]      ip6_route_input+0x59c/0xa50
[  809.874256][   T10]      ipv6_rcv+0x397/0x810
[  809.874256][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  809.874256][   T10]      process_backlog+0x101/0x620
[  809.874256][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  809.874256][   T10]      net_rx_action+0x495/0xbe0
[  809.874256][   T10]      __do_softirq+0x1b5/0x7f6
[  809.874256][   T10] 
[  809.876155][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  809.876155][   T10]      netdev_get_by_index+0x5e/0x80
[  809.876155][   T10]      fib6_nh_init+0x3d8/0x1580
[  809.876155][   T10]      ip6_route_info_create+0xf18/0x17d0
[  809.876155][   T10]      ip6_route_add+0x1c/0x140
[  809.876155][   T10]      addrconf_prefix_route+0x2a6/0x430
[  809.876155][   T10]      inet6_addr_add+0x4f8/0xa40
[  809.876155][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  809.876155][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  809.876155][   T10]      netlink_rcv_skb+0x130/0x360
[  809.876155][   T10]      netlink_unicast+0x449/0x710
[  809.876155][   T10]      netlink_sendmsg+0x723/0xbe0
[  809.876155][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  809.876155][   T10]      ___sys_sendmsg+0xee/0x170
[  809.876155][   T10]      __sys_sendmsg+0xcd/0x170
[  809.876155][   T10]      do_syscall_64+0xc6/0x1e0
[  809.876155][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  809.876155][   T10] 
[  809.878434][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  809.878434][   T10]      netdev_get_by_index+0x5e/0x80
[  809.878434][   T10]      fib6_nh_init+0x3d8/0x1580
[  809.878434][   T10]      ip6_route_info_create+0xf18/0x17d0
[  809.878434][   T10]      addrconf_f6i_alloc+0x315/0x560
[  809.878434][   T10]      ipv6_add_addr+0x411/0x2000
[  809.878434][   T10]      inet6_addr_add+0x30e/0xa40
[  809.878434][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  809.878434][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  809.878434][   T10]      netlink_rcv_skb+0x130/0x360
[  809.878434][   T10]      netlink_unicast+0x449/0x710
[  809.878434][   T10]      netlink_sendmsg+0x723/0xbe0
[  809.878434][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  809.878434][   T10]      ___sys_sendmsg+0xee/0x170
[  809.878434][   T10]      __sys_sendmsg+0xcd/0x170
[  809.878434][   T10]      do_syscall_64+0xc6/0x1e0
[  809.878434][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  809.878434][   T10] 
[  809.880650][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  809.880650][   T10]      netdev_get_by_index+0x5e/0x80
[  809.880650][   T10]      fib6_nh_init+0x3d8/0x1580
[  809.880650][   T10]      ip6_route_info_create+0xf18/0x17d0
[  809.880650][   T10]      ip6_route_add+0x1c/0x140
[  809.880650][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  809.880650][   T10]      addrconf_add_dev+0xe2/0x170
[  809.880650][   T10]      inet6_addr_add+0x12f/0xa40
[  809.880650][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  809.880650][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  809.880650][   T10]      netlink_rcv_skb+0x130/0x360
[  809.880650][   T10]      netlink_unicast+0x449/0x710
[  809.880650][   T10]      netlink_sendmsg+0x723/0xbe0
[  809.880650][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  809.880650][   T10]      ___sys_sendmsg+0xee/0x170
[  809.880650][   T10]      __sys_sendmsg+0xcd/0x170
[  809.880650][   T10]      do_syscall_64+0xc6/0x1e0
[  809.880650][   T10] 
[  809.882844][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  809.882844][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  809.882844][   T10]      ipv6_find_idev+0x102/0x170
[  809.882844][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  809.882844][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  809.882844][   T10]      netlink_rcv_skb+0x130/0x360
[  809.882844][   T10]      netlink_unicast+0x449/0x710
[  809.882844][   T10]      netlink_sendmsg+0x723/0xbe0
[  809.882844][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  809.882844][   T10]      ___sys_sendmsg+0xee/0x170
[  809.882844][   T10]      __sys_sendmsg+0xcd/0x170
[  809.882844][   T10]      do_syscall_64+0xc6/0x1e0
[  809.882844][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  809.882844][   T10] 
[  809.884568][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  809.884568][   T10]      neigh_parms_alloc+0x1e5/0x510
[  809.884568][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  809.884568][   T10]      ipv6_find_idev+0x102/0x170
[  809.884568][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  809.884568][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  809.884568][   T10]      netlink_rcv_skb+0x130/0x360
[  809.884568][   T10]      netlink_unicast+0x449/0x710
[  809.884568][   T10]      netlink_sendmsg+0x723/0xbe0
[  809.884568][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  809.884568][   T10]      ___sys_sendmsg+0xee/0x170
[  809.884568][   T10]      __sys_sendmsg+0xcd/0x170
[  809.884568][   T10]      do_syscall_64+0xc6/0x1e0
[  809.884568][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  809.884568][   T10] 
[  809.886937][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  809.887248][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  809.887248][   T10]      dst_init+0x84/0x4a0
[  809.887248][   T10]      dst_alloc+0x97/0x150
[  809.887248][   T10]      ip6_dst_alloc+0x23/0x90
[  809.887248][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  809.887248][   T10]      ip6_pol_route+0x56f/0x840
[  809.887248][   T10]      fib6_rule_lookup+0x456/0x630
[  809.887248][   T10]      ip6_route_input+0x59c/0xa50
[  809.887248][   T10]      ipv6_rcv+0x397/0x810
[  809.887248][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  809.887248][   T10]      process_backlog+0x101/0x620
[  809.887248][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  809.887248][   T10]      net_rx_action+0x495/0xbe0
[  809.887248][   T10]      __do_softirq+0x1b5/0x7f6
[  809.887248][   T10] 
[  809.889932][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  809.889932][   T10]      netdev_get_by_index+0x5e/0x80
[  809.889932][   T10]      fib6_nh_init+0x3d8/0x1580
[  809.889932][   T10]      ip6_route_info_create+0xf18/0x17d0
[  809.889932][   T10]      ip6_route_add+0x1c/0x140
[  809.889932][   T10]      addrconf_prefix_route+0x2a6/0x430
[  809.889932][   T10]      inet6_addr_add+0x4f8/0xa40
[  809.889932][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  809.889932][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  809.889932][   T10]      netlink_rcv_skb+0x130/0x360
[  809.889932][   T10]      netlink_unicast+0x449/0x710
[  809.889932][   T10]      netlink_sendmsg+0x723/0xbe0
[  809.889932][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  809.889932][   T10]      ___sys_sendmsg+0xee/0x170
[  809.889932][   T10]      __sys_sendmsg+0xcd/0x170
[  809.889932][   T10]      do_syscall_64+0xc6/0x1e0
[  809.889932][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  809.889932][   T10] 
[  809.893215][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  809.893215][   T10]      netdev_get_by_index+0x5e/0x80
[  809.893215][   T10]      fib6_nh_init+0x3d8/0x1580
[  809.893215][   T10]      ip6_route_info_create+0xf18/0x17d0
[  809.893215][   T10]      addrconf_f6i_alloc+0x315/0x560
[  809.893215][   T10]      ipv6_add_addr+0x411/0x2000
[  809.893215][   T10]      inet6_addr_add+0x30e/0xa40
[  809.893215][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  809.893215][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  809.893215][   T10]      netlink_rcv_skb+0x130/0x360
[  809.893215][   T10]      netlink_unicast+0x449/0x710
[  809.893215][   T10]      netlink_sendmsg+0x723/0xbe0
[  809.893215][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  809.893215][   T10]      ___sys_sendmsg+0xee/0x170
[  809.893215][   T10]      __sys_sendmsg+0xcd/0x170
[  809.893215][   T10]      do_syscall_64+0xc6/0x1e0
[  809.893215][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  809.893215][   T10] 
[  809.896502][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  809.896502][   T10]      netdev_get_by_index+0x5e/0x80
[  809.896502][   T10]      fib6_nh_init+0x3d8/0x1580
[  809.896502][   T10]      ip6_route_info_create+0xf18/0x17d0
[  809.896502][   T10]      ip6_route_add+0x1c/0x140
[  809.896502][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  809.896502][   T10]      addrconf_add_dev+0xe2/0x170
[  809.896502][   T10]      inet6_addr_add+0x12f/0xa40
[  809.896502][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  809.896502][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  809.896502][   T10]      netlink_rcv_skb+0x130/0x360
[  809.896502][   T10]      netlink_unicast+0x449/0x710
[  809.896502][   T10]      netlink_sendmsg+0x723/0xbe0
[  809.896502][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  809.896502][   T10]      ___sys_sendmsg+0xee/0x170
[  809.896502][   T10]      __sys_sendmsg+0xcd/0x170
[  809.896502][   T10]      do_syscall_64+0xc6/0x1e0
[  809.896502][   T10] 
[  809.899716][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  809.899716][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  809.899716][   T10]      ipv6_find_idev+0x102/0x170
[  809.899716][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  809.899716][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  809.899716][   T10]      netlink_rcv_skb+0x130/0x360
[  809.899716][   T10]      netlink_unicast+0x449/0x710
[  809.899716][   T10]      netlink_sendmsg+0x723/0xbe0
[  809.899716][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  809.899716][   T10]      ___sys_sendmsg+0xee/0x170
[  809.899716][   T10]      __sys_sendmsg+0xcd/0x170
[  809.899716][   T10]      do_syscall_64+0xc6/0x1e0
[  809.899716][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  809.899716][   T10] 
[  809.902252][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  809.902252][   T10]      neigh_parms_alloc+0x1e5/0x510
[  809.902252][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  809.902252][   T10]      ipv6_find_idev+0x102/0x170
[  809.902252][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  809.902252][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  809.902252][   T10]      netlink_rcv_skb+0x130/0x360
[  809.902252][   T10]      netlink_unicast+0x449/0x710
[  809.902252][   T10]      netlink_sendmsg+0x723/0xbe0
[  809.902252][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  809.902252][   T10]      ___sys_sendmsg+0xee/0x170
[  809.902252][   T10]      __sys_sendmsg+0xcd/0x170
[  809.902252][   T10]      do_syscall_64+0xc6/0x1e0
[  809.902252][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  809.902252][   T10] 
[  820.145805][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  820.146242][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  820.146242][   T10]      dst_init+0x84/0x4a0
[  820.146242][   T10]      dst_alloc+0x97/0x150
[  820.146242][   T10]      ip6_dst_alloc+0x23/0x90
[  820.146242][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  820.146242][   T10]      ip6_pol_route+0x56f/0x840
[  820.146242][   T10]      fib6_rule_lookup+0x456/0x630
[  820.146242][   T10]      ip6_route_input+0x59c/0xa50
[  820.146242][   T10]      ipv6_rcv+0x397/0x810
[  820.146242][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  820.146242][   T10]      process_backlog+0x101/0x620
[  820.146242][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  820.146242][   T10]      net_rx_action+0x495/0xbe0
[  820.146242][   T10]      __do_softirq+0x1b5/0x7f6
[  820.146242][   T10] 
[  820.148112][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  820.148112][   T10]      netdev_get_by_index+0x5e/0x80
[  820.148112][   T10]      fib6_nh_init+0x3d8/0x1580
[  820.148112][   T10]      ip6_route_info_create+0xf18/0x17d0
[  820.148112][   T10]      ip6_route_add+0x1c/0x140
[  820.148112][   T10]      addrconf_prefix_route+0x2a6/0x430
[  820.148112][   T10]      inet6_addr_add+0x4f8/0xa40
[  820.148112][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  820.148112][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  820.148112][   T10]      netlink_rcv_skb+0x130/0x360
[  820.148112][   T10]      netlink_unicast+0x449/0x710
[  820.148112][   T10]      netlink_sendmsg+0x723/0xbe0
[  820.148112][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  820.148112][   T10]      ___sys_sendmsg+0xee/0x170
[  820.148112][   T10]      __sys_sendmsg+0xcd/0x170
[  820.148112][   T10]      do_syscall_64+0xc6/0x1e0
[  820.148112][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  820.148112][   T10] 
[  820.150376][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  820.150376][   T10]      netdev_get_by_index+0x5e/0x80
[  820.150376][   T10]      fib6_nh_init+0x3d8/0x1580
[  820.150376][   T10]      ip6_route_info_create+0xf18/0x17d0
[  820.150376][   T10]      addrconf_f6i_alloc+0x315/0x560
[  820.150376][   T10]      ipv6_add_addr+0x411/0x2000
[  820.150376][   T10]      inet6_addr_add+0x30e/0xa40
[  820.150376][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  820.150376][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  820.150376][   T10]      netlink_rcv_skb+0x130/0x360
[  820.150376][   T10]      netlink_unicast+0x449/0x710
[  820.150376][   T10]      netlink_sendmsg+0x723/0xbe0
[  820.150376][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  820.150376][   T10]      ___sys_sendmsg+0xee/0x170
[  820.150376][   T10]      __sys_sendmsg+0xcd/0x170
[  820.150376][   T10]      do_syscall_64+0xc6/0x1e0
[  820.150376][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  820.150376][   T10] 
[  820.152646][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  820.152646][   T10]      netdev_get_by_index+0x5e/0x80
[  820.152646][   T10]      fib6_nh_init+0x3d8/0x1580
[  820.152646][   T10]      ip6_route_info_create+0xf18/0x17d0
[  820.152646][   T10]      ip6_route_add+0x1c/0x140
[  820.152646][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  820.152646][   T10]      addrconf_add_dev+0xe2/0x170
[  820.152646][   T10]      inet6_addr_add+0x12f/0xa40
[  820.152646][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  820.152646][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  820.152646][   T10]      netlink_rcv_skb+0x130/0x360
[  820.152646][   T10]      netlink_unicast+0x449/0x710
[  820.152646][   T10]      netlink_sendmsg+0x723/0xbe0
[  820.152646][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  820.152646][   T10]      ___sys_sendmsg+0xee/0x170
[  820.152646][   T10]      __sys_sendmsg+0xcd/0x170
[  820.152646][   T10]      do_syscall_64+0xc6/0x1e0
[  820.152646][   T10] 
[  820.154850][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  820.154850][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  820.154850][   T10]      ipv6_find_idev+0x102/0x170
[  820.154850][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  820.154850][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  820.154850][   T10]      netlink_rcv_skb+0x130/0x360
[  820.154850][   T10]      netlink_unicast+0x449/0x710
[  820.154850][   T10]      netlink_sendmsg+0x723/0xbe0
[  820.154850][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  820.154850][   T10]      ___sys_sendmsg+0xee/0x170
[  820.154850][   T10]      __sys_sendmsg+0xcd/0x170
[  820.154850][   T10]      do_syscall_64+0xc6/0x1e0
[  820.154850][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  820.154850][   T10] 
[  820.156581][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  820.156581][   T10]      neigh_parms_alloc+0x1e5/0x510
[  820.156581][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  820.156581][   T10]      ipv6_find_idev+0x102/0x170
[  820.156581][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  820.156581][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  820.156581][   T10]      netlink_rcv_skb+0x130/0x360
[  820.156581][   T10]      netlink_unicast+0x449/0x710
[  820.156581][   T10]      netlink_sendmsg+0x723/0xbe0
[  820.156581][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  820.156581][   T10]      ___sys_sendmsg+0xee/0x170
[  820.156581][   T10]      __sys_sendmsg+0xcd/0x170
[  820.156581][   T10]      do_syscall_64+0xc6/0x1e0
[  820.156581][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  820.156581][   T10] 
[  820.158483][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  820.158761][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  820.158761][   T10]      dst_init+0x84/0x4a0
[  820.158761][   T10]      dst_alloc+0x97/0x150
[  820.158761][   T10]      ip6_dst_alloc+0x23/0x90
[  820.158761][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  820.158761][   T10]      ip6_pol_route+0x56f/0x840
[  820.158761][   T10]      fib6_rule_lookup+0x456/0x630
[  820.158761][   T10]      ip6_route_input+0x59c/0xa50
[  820.158761][   T10]      ipv6_rcv+0x397/0x810
[  820.158761][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  820.158761][   T10]      process_backlog+0x101/0x620
[  820.158761][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  820.158761][   T10]      net_rx_action+0x495/0xbe0
[  820.158761][   T10]      __do_softirq+0x1b5/0x7f6
[  820.158761][   T10] 
[  820.160620][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  820.160620][   T10]      netdev_get_by_index+0x5e/0x80
[  820.160620][   T10]      fib6_nh_init+0x3d8/0x1580
[  820.160620][   T10]      ip6_route_info_create+0xf18/0x17d0
[  820.160620][   T10]      ip6_route_add+0x1c/0x140
[  820.160620][   T10]      addrconf_prefix_route+0x2a6/0x430
[  820.160620][   T10]      inet6_addr_add+0x4f8/0xa40
[  820.160620][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  820.160620][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  820.160620][   T10]      netlink_rcv_skb+0x130/0x360
[  820.160620][   T10]      netlink_unicast+0x449/0x710
[  820.160620][   T10]      netlink_sendmsg+0x723/0xbe0
[  820.160620][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  820.160620][   T10]      ___sys_sendmsg+0xee/0x170
[  820.160620][   T10]      __sys_sendmsg+0xcd/0x170
[  820.160620][   T10]      do_syscall_64+0xc6/0x1e0
[  820.160620][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  820.160620][   T10] 
[  820.162868][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  820.162868][   T10]      netdev_get_by_index+0x5e/0x80
[  820.162868][   T10]      fib6_nh_init+0x3d8/0x1580
[  820.162868][   T10]      ip6_route_info_create+0xf18/0x17d0
[  820.162868][   T10]      addrconf_f6i_alloc+0x315/0x560
[  820.162868][   T10]      ipv6_add_addr+0x411/0x2000
[  820.162868][   T10]      inet6_addr_add+0x30e/0xa40
[  820.162868][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  820.162868][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  820.162868][   T10]      netlink_rcv_skb+0x130/0x360
[  820.162868][   T10]      netlink_unicast+0x449/0x710
[  820.162868][   T10]      netlink_sendmsg+0x723/0xbe0
[  820.162868][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  820.162868][   T10]      ___sys_sendmsg+0xee/0x170
[  820.162868][   T10]      __sys_sendmsg+0xcd/0x170
[  820.162868][   T10]      do_syscall_64+0xc6/0x1e0
[  820.162868][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  820.162868][   T10] 
[  820.165107][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  820.165107][   T10]      netdev_get_by_index+0x5e/0x80
[  820.165107][   T10]      fib6_nh_init+0x3d8/0x1580
[  820.165107][   T10]      ip6_route_info_create+0xf18/0x17d0
[  820.165107][   T10]      ip6_route_add+0x1c/0x140
[  820.165107][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  820.165107][   T10]      addrconf_add_dev+0xe2/0x170
[  820.165107][   T10]      inet6_addr_add+0x12f/0xa40
[  820.165107][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  820.165107][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  820.165107][   T10]      netlink_rcv_skb+0x130/0x360
[  820.165107][   T10]      netlink_unicast+0x449/0x710
[  820.165107][   T10]      netlink_sendmsg+0x723/0xbe0
[  820.165107][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  820.165107][   T10]      ___sys_sendmsg+0xee/0x170
[  820.165107][   T10]      __sys_sendmsg+0xcd/0x170
[  820.165107][   T10]      do_syscall_64+0xc6/0x1e0
[  820.165107][   T10] 
[  820.167315][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  820.167315][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  820.167315][   T10]      ipv6_find_idev+0x102/0x170
[  820.167315][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  820.167315][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  820.167315][   T10]      netlink_rcv_skb+0x130/0x360
[  820.167315][   T10]      netlink_unicast+0x449/0x710
[  820.167315][   T10]      netlink_sendmsg+0x723/0xbe0
[  820.167315][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  820.167315][   T10]      ___sys_sendmsg+0xee/0x170
[  820.167315][   T10]      __sys_sendmsg+0xcd/0x170
[  820.167315][   T10]      do_syscall_64+0xc6/0x1e0
[  820.167315][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  820.167315][   T10] 
[  820.169322][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  820.169322][   T10]      neigh_parms_alloc+0x1e5/0x510
[  820.169322][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  820.169322][   T10]      ipv6_find_idev+0x102/0x170
[  820.169322][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  820.169322][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  820.169322][   T10]      netlink_rcv_skb+0x130/0x360
[  820.169322][   T10]      netlink_unicast+0x449/0x710
[  820.169322][   T10]      netlink_sendmsg+0x723/0xbe0
[  820.169322][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  820.169322][   T10]      ___sys_sendmsg+0xee/0x170
[  820.169322][   T10]      __sys_sendmsg+0xcd/0x170
[  820.169322][   T10]      do_syscall_64+0xc6/0x1e0
[  820.169322][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  820.169322][   T10] 
[  830.409828][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  830.410277][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  830.410277][   T10]      dst_init+0x84/0x4a0
[  830.410277][   T10]      dst_alloc+0x97/0x150
[  830.410277][   T10]      ip6_dst_alloc+0x23/0x90
[  830.410277][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  830.410277][   T10]      ip6_pol_route+0x56f/0x840
[  830.410277][   T10]      fib6_rule_lookup+0x456/0x630
[  830.410277][   T10]      ip6_route_input+0x59c/0xa50
[  830.410277][   T10]      ipv6_rcv+0x397/0x810
[  830.410277][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  830.410277][   T10]      process_backlog+0x101/0x620
[  830.410277][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  830.410277][   T10]      net_rx_action+0x495/0xbe0
[  830.410277][   T10]      __do_softirq+0x1b5/0x7f6
[  830.410277][   T10] 
[  830.412157][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  830.412157][   T10]      netdev_get_by_index+0x5e/0x80
[  830.412157][   T10]      fib6_nh_init+0x3d8/0x1580
[  830.412157][   T10]      ip6_route_info_create+0xf18/0x17d0
[  830.412157][   T10]      ip6_route_add+0x1c/0x140
[  830.412157][   T10]      addrconf_prefix_route+0x2a6/0x430
[  830.412157][   T10]      inet6_addr_add+0x4f8/0xa40
[  830.412157][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  830.412157][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  830.412157][   T10]      netlink_rcv_skb+0x130/0x360
[  830.412157][   T10]      netlink_unicast+0x449/0x710
[  830.412157][   T10]      netlink_sendmsg+0x723/0xbe0
[  830.412157][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  830.412157][   T10]      ___sys_sendmsg+0xee/0x170
[  830.412157][   T10]      __sys_sendmsg+0xcd/0x170
[  830.412157][   T10]      do_syscall_64+0xc6/0x1e0
[  830.412157][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  830.412157][   T10] 
[  830.414412][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  830.414412][   T10]      netdev_get_by_index+0x5e/0x80
[  830.414412][   T10]      fib6_nh_init+0x3d8/0x1580
[  830.414412][   T10]      ip6_route_info_create+0xf18/0x17d0
[  830.414412][   T10]      addrconf_f6i_alloc+0x315/0x560
[  830.414412][   T10]      ipv6_add_addr+0x411/0x2000
[  830.414412][   T10]      inet6_addr_add+0x30e/0xa40
[  830.414412][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  830.414412][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  830.414412][   T10]      netlink_rcv_skb+0x130/0x360
[  830.414412][   T10]      netlink_unicast+0x449/0x710
[  830.414412][   T10]      netlink_sendmsg+0x723/0xbe0
[  830.414412][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  830.414412][   T10]      ___sys_sendmsg+0xee/0x170
[  830.414412][   T10]      __sys_sendmsg+0xcd/0x170
[  830.414412][   T10]      do_syscall_64+0xc6/0x1e0
[  830.414412][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  830.414412][   T10] 
[  830.416652][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  830.416652][   T10]      netdev_get_by_index+0x5e/0x80
[  830.416652][   T10]      fib6_nh_init+0x3d8/0x1580
[  830.416652][   T10]      ip6_route_info_create+0xf18/0x17d0
[  830.416652][   T10]      ip6_route_add+0x1c/0x140
[  830.416652][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  830.416652][   T10]      addrconf_add_dev+0xe2/0x170
[  830.416652][   T10]      inet6_addr_add+0x12f/0xa40
[  830.416652][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  830.416652][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  830.416652][   T10]      netlink_rcv_skb+0x130/0x360
[  830.416652][   T10]      netlink_unicast+0x449/0x710
[  830.416652][   T10]      netlink_sendmsg+0x723/0xbe0
[  830.416652][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  830.416652][   T10]      ___sys_sendmsg+0xee/0x170
[  830.416652][   T10]      __sys_sendmsg+0xcd/0x170
[  830.416652][   T10]      do_syscall_64+0xc6/0x1e0
[  830.416652][   T10] 
[  830.418874][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  830.418874][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  830.418874][   T10]      ipv6_find_idev+0x102/0x170
[  830.418874][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  830.418874][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  830.418874][   T10]      netlink_rcv_skb+0x130/0x360
[  830.418874][   T10]      netlink_unicast+0x449/0x710
[  830.418874][   T10]      netlink_sendmsg+0x723/0xbe0
[  830.418874][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  830.418874][   T10]      ___sys_sendmsg+0xee/0x170
[  830.418874][   T10]      __sys_sendmsg+0xcd/0x170
[  830.418874][   T10]      do_syscall_64+0xc6/0x1e0
[  830.418874][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  830.418874][   T10] 
[  830.420610][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  830.420610][   T10]      neigh_parms_alloc+0x1e5/0x510
[  830.420610][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  830.420610][   T10]      ipv6_find_idev+0x102/0x170
[  830.420610][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  830.420610][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  830.420610][   T10]      netlink_rcv_skb+0x130/0x360
[  830.420610][   T10]      netlink_unicast+0x449/0x710
[  830.420610][   T10]      netlink_sendmsg+0x723/0xbe0
[  830.420610][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  830.420610][   T10]      ___sys_sendmsg+0xee/0x170
[  830.420610][   T10]      __sys_sendmsg+0xcd/0x170
[  830.420610][   T10]      do_syscall_64+0xc6/0x1e0
[  830.420610][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  830.420610][   T10] 
[  830.422505][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  830.422777][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  830.422777][   T10]      dst_init+0x84/0x4a0
[  830.422777][   T10]      dst_alloc+0x97/0x150
[  830.422777][   T10]      ip6_dst_alloc+0x23/0x90
[  830.422777][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  830.422777][   T10]      ip6_pol_route+0x56f/0x840
[  830.422777][   T10]      fib6_rule_lookup+0x456/0x630
[  830.422777][   T10]      ip6_route_input+0x59c/0xa50
[  830.422777][   T10]      ipv6_rcv+0x397/0x810
[  830.422777][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  830.422777][   T10]      process_backlog+0x101/0x620
[  830.422777][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  830.422777][   T10]      net_rx_action+0x495/0xbe0
[  830.422777][   T10]      __do_softirq+0x1b5/0x7f6
[  830.422777][   T10] 
[  830.424594][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  830.424594][   T10]      netdev_get_by_index+0x5e/0x80
[  830.424594][   T10]      fib6_nh_init+0x3d8/0x1580
[  830.424594][   T10]      ip6_route_info_create+0xf18/0x17d0
[  830.424594][   T10]      ip6_route_add+0x1c/0x140
[  830.424594][   T10]      addrconf_prefix_route+0x2a6/0x430
[  830.424594][   T10]      inet6_addr_add+0x4f8/0xa40
[  830.424594][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  830.424594][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  830.424594][   T10]      netlink_rcv_skb+0x130/0x360
[  830.424594][   T10]      netlink_unicast+0x449/0x710
[  830.424594][   T10]      netlink_sendmsg+0x723/0xbe0
[  830.424594][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  830.424594][   T10]      ___sys_sendmsg+0xee/0x170
[  830.424594][   T10]      __sys_sendmsg+0xcd/0x170
[  830.424594][   T10]      do_syscall_64+0xc6/0x1e0
[  830.424594][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  830.424594][   T10] 
[  830.426869][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  830.426869][   T10]      netdev_get_by_index+0x5e/0x80
[  830.426869][   T10]      fib6_nh_init+0x3d8/0x1580
[  830.426869][   T10]      ip6_route_info_create+0xf18/0x17d0
[  830.426869][   T10]      addrconf_f6i_alloc+0x315/0x560
[  830.426869][   T10]      ipv6_add_addr+0x411/0x2000
[  830.426869][   T10]      inet6_addr_add+0x30e/0xa40
[  830.426869][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  830.426869][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  830.426869][   T10]      netlink_rcv_skb+0x130/0x360
[  830.426869][   T10]      netlink_unicast+0x449/0x710
[  830.426869][   T10]      netlink_sendmsg+0x723/0xbe0
[  830.426869][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  830.426869][   T10]      ___sys_sendmsg+0xee/0x170
[  830.426869][   T10]      __sys_sendmsg+0xcd/0x170
[  830.426869][   T10]      do_syscall_64+0xc6/0x1e0
[  830.426869][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  830.426869][   T10] 
[  830.429096][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  830.429096][   T10]      netdev_get_by_index+0x5e/0x80
[  830.429096][   T10]      fib6_nh_init+0x3d8/0x1580
[  830.429096][   T10]      ip6_route_info_create+0xf18/0x17d0
[  830.429096][   T10]      ip6_route_add+0x1c/0x140
[  830.429096][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  830.429096][   T10]      addrconf_add_dev+0xe2/0x170
[  830.429096][   T10]      inet6_addr_add+0x12f/0xa40
[  830.429096][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  830.429096][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  830.429096][   T10]      netlink_rcv_skb+0x130/0x360
[  830.429096][   T10]      netlink_unicast+0x449/0x710
[  830.429096][   T10]      netlink_sendmsg+0x723/0xbe0
[  830.429096][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  830.429096][   T10]      ___sys_sendmsg+0xee/0x170
[  830.429096][   T10]      __sys_sendmsg+0xcd/0x170
[  830.429096][   T10]      do_syscall_64+0xc6/0x1e0
[  830.429096][   T10] 
[  830.431307][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  830.431307][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  830.431307][   T10]      ipv6_find_idev+0x102/0x170
[  830.431307][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  830.431307][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  830.431307][   T10]      netlink_rcv_skb+0x130/0x360
[  830.431307][   T10]      netlink_unicast+0x449/0x710
[  830.431307][   T10]      netlink_sendmsg+0x723/0xbe0
[  830.431307][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  830.431307][   T10]      ___sys_sendmsg+0xee/0x170
[  830.431307][   T10]      __sys_sendmsg+0xcd/0x170
[  830.431307][   T10]      do_syscall_64+0xc6/0x1e0
[  830.431307][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  830.431307][   T10] 
[  830.433026][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  830.433026][   T10]      neigh_parms_alloc+0x1e5/0x510
[  830.433026][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  830.433026][   T10]      ipv6_find_idev+0x102/0x170
[  830.433026][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  830.433026][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  830.433026][   T10]      netlink_rcv_skb+0x130/0x360
[  830.433026][   T10]      netlink_unicast+0x449/0x710
[  830.433026][   T10]      netlink_sendmsg+0x723/0xbe0
[  830.433026][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  830.433026][   T10]      ___sys_sendmsg+0xee/0x170
[  830.433026][   T10]      __sys_sendmsg+0xcd/0x170
[  830.433026][   T10]      do_syscall_64+0xc6/0x1e0
[  830.433026][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  830.433026][   T10] 
[  840.673774][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  840.674207][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  840.674207][   T10]      dst_init+0x84/0x4a0
[  840.674207][   T10]      dst_alloc+0x97/0x150
[  840.674207][   T10]      ip6_dst_alloc+0x23/0x90
[  840.674207][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  840.674207][   T10]      ip6_pol_route+0x56f/0x840
[  840.674207][   T10]      fib6_rule_lookup+0x456/0x630
[  840.674207][   T10]      ip6_route_input+0x59c/0xa50
[  840.674207][   T10]      ipv6_rcv+0x397/0x810
[  840.674207][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  840.674207][   T10]      process_backlog+0x101/0x620
[  840.674207][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  840.674207][   T10]      net_rx_action+0x495/0xbe0
[  840.674207][   T10]      __do_softirq+0x1b5/0x7f6
[  840.674207][   T10] 
[  840.676069][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  840.676069][   T10]      netdev_get_by_index+0x5e/0x80
[  840.676069][   T10]      fib6_nh_init+0x3d8/0x1580
[  840.676069][   T10]      ip6_route_info_create+0xf18/0x17d0
[  840.676069][   T10]      ip6_route_add+0x1c/0x140
[  840.676069][   T10]      addrconf_prefix_route+0x2a6/0x430
[  840.676069][   T10]      inet6_addr_add+0x4f8/0xa40
[  840.676069][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  840.676069][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  840.676069][   T10]      netlink_rcv_skb+0x130/0x360
[  840.676069][   T10]      netlink_unicast+0x449/0x710
[  840.676069][   T10]      netlink_sendmsg+0x723/0xbe0
[  840.676069][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  840.676069][   T10]      ___sys_sendmsg+0xee/0x170
[  840.676069][   T10]      __sys_sendmsg+0xcd/0x170
[  840.676069][   T10]      do_syscall_64+0xc6/0x1e0
[  840.676069][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  840.676069][   T10] 
[  840.678321][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  840.678321][   T10]      netdev_get_by_index+0x5e/0x80
[  840.678321][   T10]      fib6_nh_init+0x3d8/0x1580
[  840.678321][   T10]      ip6_route_info_create+0xf18/0x17d0
[  840.678321][   T10]      addrconf_f6i_alloc+0x315/0x560
[  840.678321][   T10]      ipv6_add_addr+0x411/0x2000
[  840.678321][   T10]      inet6_addr_add+0x30e/0xa40
[  840.678321][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  840.678321][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  840.678321][   T10]      netlink_rcv_skb+0x130/0x360
[  840.678321][   T10]      netlink_unicast+0x449/0x710
[  840.678321][   T10]      netlink_sendmsg+0x723/0xbe0
[  840.678321][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  840.678321][   T10]      ___sys_sendmsg+0xee/0x170
[  840.678321][   T10]      __sys_sendmsg+0xcd/0x170
[  840.678321][   T10]      do_syscall_64+0xc6/0x1e0
[  840.678321][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  840.678321][   T10] 
[  840.680578][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  840.680578][   T10]      netdev_get_by_index+0x5e/0x80
[  840.680578][   T10]      fib6_nh_init+0x3d8/0x1580
[  840.680578][   T10]      ip6_route_info_create+0xf18/0x17d0
[  840.680578][   T10]      ip6_route_add+0x1c/0x140
[  840.680578][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  840.680578][   T10]      addrconf_add_dev+0xe2/0x170
[  840.680578][   T10]      inet6_addr_add+0x12f/0xa40
[  840.680578][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  840.680578][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  840.680578][   T10]      netlink_rcv_skb+0x130/0x360
[  840.680578][   T10]      netlink_unicast+0x449/0x710
[  840.680578][   T10]      netlink_sendmsg+0x723/0xbe0
[  840.680578][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  840.680578][   T10]      ___sys_sendmsg+0xee/0x170
[  840.680578][   T10]      __sys_sendmsg+0xcd/0x170
[  840.680578][   T10]      do_syscall_64+0xc6/0x1e0
[  840.680578][   T10] 
[  840.682788][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  840.682788][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  840.682788][   T10]      ipv6_find_idev+0x102/0x170
[  840.682788][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  840.682788][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  840.682788][   T10]      netlink_rcv_skb+0x130/0x360
[  840.682788][   T10]      netlink_unicast+0x449/0x710
[  840.682788][   T10]      netlink_sendmsg+0x723/0xbe0
[  840.682788][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  840.682788][   T10]      ___sys_sendmsg+0xee/0x170
[  840.682788][   T10]      __sys_sendmsg+0xcd/0x170
[  840.682788][   T10]      do_syscall_64+0xc6/0x1e0
[  840.682788][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  840.682788][   T10] 
[  840.684885][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  840.684885][   T10]      neigh_parms_alloc+0x1e5/0x510
[  840.684885][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  840.684885][   T10]      ipv6_find_idev+0x102/0x170
[  840.684885][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  840.684885][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  840.684885][   T10]      netlink_rcv_skb+0x130/0x360
[  840.684885][   T10]      netlink_unicast+0x449/0x710
[  840.684885][   T10]      netlink_sendmsg+0x723/0xbe0
[  840.684885][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  840.684885][   T10]      ___sys_sendmsg+0xee/0x170
[  840.684885][   T10]      __sys_sendmsg+0xcd/0x170
[  840.684885][   T10]      do_syscall_64+0xc6/0x1e0
[  840.684885][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  840.684885][   T10] 
[  840.686770][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  840.687035][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  840.687035][   T10]      dst_init+0x84/0x4a0
[  840.687035][   T10]      dst_alloc+0x97/0x150
[  840.687035][   T10]      ip6_dst_alloc+0x23/0x90
[  840.687035][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  840.687035][   T10]      ip6_pol_route+0x56f/0x840
[  840.687035][   T10]      fib6_rule_lookup+0x456/0x630
[  840.687035][   T10]      ip6_route_input+0x59c/0xa50
[  840.687035][   T10]      ipv6_rcv+0x397/0x810
[  840.687035][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  840.687035][   T10]      process_backlog+0x101/0x620
[  840.687035][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  840.687035][   T10]      net_rx_action+0x495/0xbe0
[  840.687035][   T10]      __do_softirq+0x1b5/0x7f6
[  840.687035][   T10] 
[  840.688890][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  840.688890][   T10]      netdev_get_by_index+0x5e/0x80
[  840.688890][   T10]      fib6_nh_init+0x3d8/0x1580
[  840.688890][   T10]      ip6_route_info_create+0xf18/0x17d0
[  840.688890][   T10]      ip6_route_add+0x1c/0x140
[  840.688890][   T10]      addrconf_prefix_route+0x2a6/0x430
[  840.688890][   T10]      inet6_addr_add+0x4f8/0xa40
[  840.688890][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  840.688890][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  840.688890][   T10]      netlink_rcv_skb+0x130/0x360
[  840.688890][   T10]      netlink_unicast+0x449/0x710
[  840.688890][   T10]      netlink_sendmsg+0x723/0xbe0
[  840.688890][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  840.688890][   T10]      ___sys_sendmsg+0xee/0x170
[  840.688890][   T10]      __sys_sendmsg+0xcd/0x170
[  840.688890][   T10]      do_syscall_64+0xc6/0x1e0
[  840.688890][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  840.688890][   T10] 
[  840.691129][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  840.691129][   T10]      netdev_get_by_index+0x5e/0x80
[  840.691129][   T10]      fib6_nh_init+0x3d8/0x1580
[  840.691129][   T10]      ip6_route_info_create+0xf18/0x17d0
[  840.691129][   T10]      addrconf_f6i_alloc+0x315/0x560
[  840.691129][   T10]      ipv6_add_addr+0x411/0x2000
[  840.691129][   T10]      inet6_addr_add+0x30e/0xa40
[  840.691129][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  840.691129][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  840.691129][   T10]      netlink_rcv_skb+0x130/0x360
[  840.691129][   T10]      netlink_unicast+0x449/0x710
[  840.691129][   T10]      netlink_sendmsg+0x723/0xbe0
[  840.691129][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  840.691129][   T10]      ___sys_sendmsg+0xee/0x170
[  840.691129][   T10]      __sys_sendmsg+0xcd/0x170
[  840.691129][   T10]      do_syscall_64+0xc6/0x1e0
[  840.691129][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  840.691129][   T10] 
[  840.693364][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  840.693364][   T10]      netdev_get_by_index+0x5e/0x80
[  840.693364][   T10]      fib6_nh_init+0x3d8/0x1580
[  840.693364][   T10]      ip6_route_info_create+0xf18/0x17d0
[  840.693364][   T10]      ip6_route_add+0x1c/0x140
[  840.693364][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  840.693364][   T10]      addrconf_add_dev+0xe2/0x170
[  840.693364][   T10]      inet6_addr_add+0x12f/0xa40
[  840.693364][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  840.693364][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  840.693364][   T10]      netlink_rcv_skb+0x130/0x360
[  840.693364][   T10]      netlink_unicast+0x449/0x710
[  840.693364][   T10]      netlink_sendmsg+0x723/0xbe0
[  840.693364][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  840.693364][   T10]      ___sys_sendmsg+0xee/0x170
[  840.693364][   T10]      __sys_sendmsg+0xcd/0x170
[  840.693364][   T10]      do_syscall_64+0xc6/0x1e0
[  840.693364][   T10] 
[  840.695574][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  840.695574][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  840.695574][   T10]      ipv6_find_idev+0x102/0x170
[  840.695574][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  840.695574][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  840.695574][   T10]      netlink_rcv_skb+0x130/0x360
[  840.695574][   T10]      netlink_unicast+0x449/0x710
[  840.695574][   T10]      netlink_sendmsg+0x723/0xbe0
[  840.695574][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  840.695574][   T10]      ___sys_sendmsg+0xee/0x170
[  840.695574][   T10]      __sys_sendmsg+0xcd/0x170
[  840.695574][   T10]      do_syscall_64+0xc6/0x1e0
[  840.695574][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  840.695574][   T10] 
[  840.697306][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  840.697306][   T10]      neigh_parms_alloc+0x1e5/0x510
[  840.697306][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  840.697306][   T10]      ipv6_find_idev+0x102/0x170
[  840.697306][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  840.697306][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  840.697306][   T10]      netlink_rcv_skb+0x130/0x360
[  840.697306][   T10]      netlink_unicast+0x449/0x710
[  840.697306][   T10]      netlink_sendmsg+0x723/0xbe0
[  840.697306][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  840.697306][   T10]      ___sys_sendmsg+0xee/0x170
[  840.697306][   T10]      __sys_sendmsg+0xcd/0x170
[  840.697306][   T10]      do_syscall_64+0xc6/0x1e0
[  840.697306][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  840.697306][   T10] 
[  850.945876][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  850.946324][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  850.946324][   T10]      dst_init+0x84/0x4a0
[  850.946324][   T10]      dst_alloc+0x97/0x150
[  850.946324][   T10]      ip6_dst_alloc+0x23/0x90
[  850.946324][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  850.946324][   T10]      ip6_pol_route+0x56f/0x840
[  850.946324][   T10]      fib6_rule_lookup+0x456/0x630
[  850.946324][   T10]      ip6_route_input+0x59c/0xa50
[  850.946324][   T10]      ipv6_rcv+0x397/0x810
[  850.946324][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  850.946324][   T10]      process_backlog+0x101/0x620
[  850.946324][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  850.946324][   T10]      net_rx_action+0x495/0xbe0
[  850.946324][   T10]      __do_softirq+0x1b5/0x7f6
[  850.946324][   T10] 
[  850.948256][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  850.948256][   T10]      netdev_get_by_index+0x5e/0x80
[  850.948256][   T10]      fib6_nh_init+0x3d8/0x1580
[  850.948256][   T10]      ip6_route_info_create+0xf18/0x17d0
[  850.948256][   T10]      ip6_route_add+0x1c/0x140
[  850.948256][   T10]      addrconf_prefix_route+0x2a6/0x430
[  850.948256][   T10]      inet6_addr_add+0x4f8/0xa40
[  850.948256][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  850.948256][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  850.948256][   T10]      netlink_rcv_skb+0x130/0x360
[  850.948256][   T10]      netlink_unicast+0x449/0x710
[  850.948256][   T10]      netlink_sendmsg+0x723/0xbe0
[  850.948256][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  850.948256][   T10]      ___sys_sendmsg+0xee/0x170
[  850.948256][   T10]      __sys_sendmsg+0xcd/0x170
[  850.948256][   T10]      do_syscall_64+0xc6/0x1e0
[  850.948256][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  850.948256][   T10] 
[  850.950517][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  850.950517][   T10]      netdev_get_by_index+0x5e/0x80
[  850.950517][   T10]      fib6_nh_init+0x3d8/0x1580
[  850.950517][   T10]      ip6_route_info_create+0xf18/0x17d0
[  850.950517][   T10]      addrconf_f6i_alloc+0x315/0x560
[  850.950517][   T10]      ipv6_add_addr+0x411/0x2000
[  850.950517][   T10]      inet6_addr_add+0x30e/0xa40
[  850.950517][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  850.950517][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  850.950517][   T10]      netlink_rcv_skb+0x130/0x360
[  850.950517][   T10]      netlink_unicast+0x449/0x710
[  850.950517][   T10]      netlink_sendmsg+0x723/0xbe0
[  850.950517][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  850.950517][   T10]      ___sys_sendmsg+0xee/0x170
[  850.950517][   T10]      __sys_sendmsg+0xcd/0x170
[  850.950517][   T10]      do_syscall_64+0xc6/0x1e0
[  850.950517][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  850.950517][   T10] 
[  850.952775][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  850.952775][   T10]      netdev_get_by_index+0x5e/0x80
[  850.952775][   T10]      fib6_nh_init+0x3d8/0x1580
[  850.952775][   T10]      ip6_route_info_create+0xf18/0x17d0
[  850.952775][   T10]      ip6_route_add+0x1c/0x140
[  850.952775][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  850.952775][   T10]      addrconf_add_dev+0xe2/0x170
[  850.952775][   T10]      inet6_addr_add+0x12f/0xa40
[  850.952775][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  850.952775][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  850.952775][   T10]      netlink_rcv_skb+0x130/0x360
[  850.952775][   T10]      netlink_unicast+0x449/0x710
[  850.952775][   T10]      netlink_sendmsg+0x723/0xbe0
[  850.952775][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  850.952775][   T10]      ___sys_sendmsg+0xee/0x170
[  850.952775][   T10]      __sys_sendmsg+0xcd/0x170
[  850.952775][   T10]      do_syscall_64+0xc6/0x1e0
[  850.952775][   T10] 
[  850.954966][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  850.954966][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  850.954966][   T10]      ipv6_find_idev+0x102/0x170
[  850.954966][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  850.954966][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  850.954966][   T10]      netlink_rcv_skb+0x130/0x360
[  850.954966][   T10]      netlink_unicast+0x449/0x710
[  850.954966][   T10]      netlink_sendmsg+0x723/0xbe0
[  850.954966][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  850.954966][   T10]      ___sys_sendmsg+0xee/0x170
[  850.954966][   T10]      __sys_sendmsg+0xcd/0x170
[  850.954966][   T10]      do_syscall_64+0xc6/0x1e0
[  850.954966][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  850.954966][   T10] 
[  850.956704][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  850.956704][   T10]      neigh_parms_alloc+0x1e5/0x510
[  850.956704][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  850.956704][   T10]      ipv6_find_idev+0x102/0x170
[  850.956704][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  850.956704][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  850.956704][   T10]      netlink_rcv_skb+0x130/0x360
[  850.956704][   T10]      netlink_unicast+0x449/0x710
[  850.956704][   T10]      netlink_sendmsg+0x723/0xbe0
[  850.956704][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  850.956704][   T10]      ___sys_sendmsg+0xee/0x170
[  850.956704][   T10]      __sys_sendmsg+0xcd/0x170
[  850.956704][   T10]      do_syscall_64+0xc6/0x1e0
[  850.956704][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  850.956704][   T10] 
[  850.958634][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  850.958907][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  850.958907][   T10]      dst_init+0x84/0x4a0
[  850.958907][   T10]      dst_alloc+0x97/0x150
[  850.958907][   T10]      ip6_dst_alloc+0x23/0x90
[  850.958907][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  850.958907][   T10]      ip6_pol_route+0x56f/0x840
[  850.958907][   T10]      fib6_rule_lookup+0x456/0x630
[  850.958907][   T10]      ip6_route_input+0x59c/0xa50
[  850.958907][   T10]      ipv6_rcv+0x397/0x810
[  850.958907][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  850.958907][   T10]      process_backlog+0x101/0x620
[  850.958907][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  850.958907][   T10]      net_rx_action+0x495/0xbe0
[  850.958907][   T10]      __do_softirq+0x1b5/0x7f6
[  850.958907][   T10] 
[  850.960762][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  850.960762][   T10]      netdev_get_by_index+0x5e/0x80
[  850.960762][   T10]      fib6_nh_init+0x3d8/0x1580
[  850.960762][   T10]      ip6_route_info_create+0xf18/0x17d0
[  850.960762][   T10]      ip6_route_add+0x1c/0x140
[  850.960762][   T10]      addrconf_prefix_route+0x2a6/0x430
[  850.960762][   T10]      inet6_addr_add+0x4f8/0xa40
[  850.960762][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  850.960762][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  850.960762][   T10]      netlink_rcv_skb+0x130/0x360
[  850.960762][   T10]      netlink_unicast+0x449/0x710
[  850.960762][   T10]      netlink_sendmsg+0x723/0xbe0
[  850.960762][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  850.960762][   T10]      ___sys_sendmsg+0xee/0x170
[  850.960762][   T10]      __sys_sendmsg+0xcd/0x170
[  850.960762][   T10]      do_syscall_64+0xc6/0x1e0
[  850.960762][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  850.960762][   T10] 
[  850.963007][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  850.963007][   T10]      netdev_get_by_index+0x5e/0x80
[  850.963007][   T10]      fib6_nh_init+0x3d8/0x1580
[  850.963007][   T10]      ip6_route_info_create+0xf18/0x17d0
[  850.963007][   T10]      addrconf_f6i_alloc+0x315/0x560
[  850.963007][   T10]      ipv6_add_addr+0x411/0x2000
[  850.963007][   T10]      inet6_addr_add+0x30e/0xa40
[  850.963007][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  850.963007][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  850.963007][   T10]      netlink_rcv_skb+0x130/0x360
[  850.963007][   T10]      netlink_unicast+0x449/0x710
[  850.963007][   T10]      netlink_sendmsg+0x723/0xbe0
[  850.963007][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  850.963007][   T10]      ___sys_sendmsg+0xee/0x170
[  850.963007][   T10]      __sys_sendmsg+0xcd/0x170
[  850.963007][   T10]      do_syscall_64+0xc6/0x1e0
[  850.963007][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  850.963007][   T10] 
[  850.965268][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  850.965268][   T10]      netdev_get_by_index+0x5e/0x80
[  850.965268][   T10]      fib6_nh_init+0x3d8/0x1580
[  850.965268][   T10]      ip6_route_info_create+0xf18/0x17d0
[  850.965268][   T10]      ip6_route_add+0x1c/0x140
[  850.965268][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  850.965268][   T10]      addrconf_add_dev+0xe2/0x170
[  850.965268][   T10]      inet6_addr_add+0x12f/0xa40
[  850.965268][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  850.965268][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  850.965268][   T10]      netlink_rcv_skb+0x130/0x360
[  850.965268][   T10]      netlink_unicast+0x449/0x710
[  850.965268][   T10]      netlink_sendmsg+0x723/0xbe0
[  850.965268][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  850.965268][   T10]      ___sys_sendmsg+0xee/0x170
[  850.965268][   T10]      __sys_sendmsg+0xcd/0x170
[  850.965268][   T10]      do_syscall_64+0xc6/0x1e0
[  850.965268][   T10] 
[  850.967491][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  850.967491][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  850.967491][   T10]      ipv6_find_idev+0x102/0x170
[  850.967491][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  850.967491][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  850.967491][   T10]      netlink_rcv_skb+0x130/0x360
[  850.967491][   T10]      netlink_unicast+0x449/0x710
[  850.967491][   T10]      netlink_sendmsg+0x723/0xbe0
[  850.967491][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  850.967491][   T10]      ___sys_sendmsg+0xee/0x170
[  850.967491][   T10]      __sys_sendmsg+0xcd/0x170
[  850.967491][   T10]      do_syscall_64+0xc6/0x1e0
[  850.967491][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  850.967491][   T10] 
[  850.969224][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  850.969224][   T10]      neigh_parms_alloc+0x1e5/0x510
[  850.969224][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  850.969224][   T10]      ipv6_find_idev+0x102/0x170
[  850.969224][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  850.969224][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  850.969224][   T10]      netlink_rcv_skb+0x130/0x360
[  850.969224][   T10]      netlink_unicast+0x449/0x710
[  850.969224][   T10]      netlink_sendmsg+0x723/0xbe0
[  850.969224][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  850.969224][   T10]      ___sys_sendmsg+0xee/0x170
[  850.969224][   T10]      __sys_sendmsg+0xcd/0x170
[  850.969224][   T10]      do_syscall_64+0xc6/0x1e0
[  850.969224][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  850.969224][   T10] 
[  861.209777][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  861.210269][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  861.210269][   T10]      dst_init+0x84/0x4a0
[  861.210269][   T10]      dst_alloc+0x97/0x150
[  861.210269][   T10]      ip6_dst_alloc+0x23/0x90
[  861.210269][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  861.210269][   T10]      ip6_pol_route+0x56f/0x840
[  861.210269][   T10]      fib6_rule_lookup+0x456/0x630
[  861.210269][   T10]      ip6_route_input+0x59c/0xa50
[  861.210269][   T10]      ipv6_rcv+0x397/0x810
[  861.210269][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  861.210269][   T10]      process_backlog+0x101/0x620
[  861.210269][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  861.210269][   T10]      net_rx_action+0x495/0xbe0
[  861.210269][   T10]      __do_softirq+0x1b5/0x7f6
[  861.210269][   T10] 
[  861.212143][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  861.212143][   T10]      netdev_get_by_index+0x5e/0x80
[  861.212143][   T10]      fib6_nh_init+0x3d8/0x1580
[  861.212143][   T10]      ip6_route_info_create+0xf18/0x17d0
[  861.212143][   T10]      ip6_route_add+0x1c/0x140
[  861.212143][   T10]      addrconf_prefix_route+0x2a6/0x430
[  861.212143][   T10]      inet6_addr_add+0x4f8/0xa40
[  861.212143][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  861.212143][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  861.212143][   T10]      netlink_rcv_skb+0x130/0x360
[  861.212143][   T10]      netlink_unicast+0x449/0x710
[  861.212143][   T10]      netlink_sendmsg+0x723/0xbe0
[  861.212143][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  861.212143][   T10]      ___sys_sendmsg+0xee/0x170
[  861.212143][   T10]      __sys_sendmsg+0xcd/0x170
[  861.212143][   T10]      do_syscall_64+0xc6/0x1e0
[  861.212143][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  861.212143][   T10] 
[  861.214411][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  861.214411][   T10]      netdev_get_by_index+0x5e/0x80
[  861.214411][   T10]      fib6_nh_init+0x3d8/0x1580
[  861.214411][   T10]      ip6_route_info_create+0xf18/0x17d0
[  861.214411][   T10]      addrconf_f6i_alloc+0x315/0x560
[  861.214411][   T10]      ipv6_add_addr+0x411/0x2000
[  861.214411][   T10]      inet6_addr_add+0x30e/0xa40
[  861.214411][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  861.214411][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  861.214411][   T10]      netlink_rcv_skb+0x130/0x360
[  861.214411][   T10]      netlink_unicast+0x449/0x710
[  861.214411][   T10]      netlink_sendmsg+0x723/0xbe0
[  861.214411][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  861.214411][   T10]      ___sys_sendmsg+0xee/0x170
[  861.214411][   T10]      __sys_sendmsg+0xcd/0x170
[  861.214411][   T10]      do_syscall_64+0xc6/0x1e0
[  861.214411][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  861.214411][   T10] 
[  861.217437][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  861.217437][   T10]      netdev_get_by_index+0x5e/0x80
[  861.217437][   T10]      fib6_nh_init+0x3d8/0x1580
[  861.217437][   T10]      ip6_route_info_create+0xf18/0x17d0
[  861.217437][   T10]      ip6_route_add+0x1c/0x140
[  861.217437][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  861.217437][   T10]      addrconf_add_dev+0xe2/0x170
[  861.217437][   T10]      inet6_addr_add+0x12f/0xa40
[  861.217437][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  861.217437][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  861.217437][   T10]      netlink_rcv_skb+0x130/0x360
[  861.217437][   T10]      netlink_unicast+0x449/0x710
[  861.217437][   T10]      netlink_sendmsg+0x723/0xbe0
[  861.217437][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  861.217437][   T10]      ___sys_sendmsg+0xee/0x170
[  861.217437][   T10]      __sys_sendmsg+0xcd/0x170
[  861.217437][   T10]      do_syscall_64+0xc6/0x1e0
[  861.217437][   T10] 
[  861.220650][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  861.220650][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  861.220650][   T10]      ipv6_find_idev+0x102/0x170
[  861.220650][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  861.220650][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  861.220650][   T10]      netlink_rcv_skb+0x130/0x360
[  861.220650][   T10]      netlink_unicast+0x449/0x710
[  861.220650][   T10]      netlink_sendmsg+0x723/0xbe0
[  861.220650][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  861.220650][   T10]      ___sys_sendmsg+0xee/0x170
[  861.220650][   T10]      __sys_sendmsg+0xcd/0x170
[  861.220650][   T10]      do_syscall_64+0xc6/0x1e0
[  861.220650][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  861.220650][   T10] 
[  861.223127][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  861.223127][   T10]      neigh_parms_alloc+0x1e5/0x510
[  861.223127][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  861.223127][   T10]      ipv6_find_idev+0x102/0x170
[  861.223127][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  861.223127][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  861.223127][   T10]      netlink_rcv_skb+0x130/0x360
[  861.223127][   T10]      netlink_unicast+0x449/0x710
[  861.223127][   T10]      netlink_sendmsg+0x723/0xbe0
[  861.223127][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  861.223127][   T10]      ___sys_sendmsg+0xee/0x170
[  861.223127][   T10]      __sys_sendmsg+0xcd/0x170
[  861.223127][   T10]      do_syscall_64+0xc6/0x1e0
[  861.223127][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  861.223127][   T10] 
[  861.225543][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  861.225836][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  861.225836][   T10]      dst_init+0x84/0x4a0
[  861.225836][   T10]      dst_alloc+0x97/0x150
[  861.225836][   T10]      ip6_dst_alloc+0x23/0x90
[  861.225836][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  861.225836][   T10]      ip6_pol_route+0x56f/0x840
[  861.225836][   T10]      fib6_rule_lookup+0x456/0x630
[  861.225836][   T10]      ip6_route_input+0x59c/0xa50
[  861.225836][   T10]      ipv6_rcv+0x397/0x810
[  861.225836][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  861.225836][   T10]      process_backlog+0x101/0x620
[  861.225836][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  861.225836][   T10]      net_rx_action+0x495/0xbe0
[  861.225836][   T10]      __do_softirq+0x1b5/0x7f6
[  861.225836][   T10] 
[  861.227668][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  861.227668][   T10]      netdev_get_by_index+0x5e/0x80
[  861.227668][   T10]      fib6_nh_init+0x3d8/0x1580
[  861.227668][   T10]      ip6_route_info_create+0xf18/0x17d0
[  861.227668][   T10]      ip6_route_add+0x1c/0x140
[  861.227668][   T10]      addrconf_prefix_route+0x2a6/0x430
[  861.227668][   T10]      inet6_addr_add+0x4f8/0xa40
[  861.227668][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  861.227668][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  861.227668][   T10]      netlink_rcv_skb+0x130/0x360
[  861.227668][   T10]      netlink_unicast+0x449/0x710
[  861.227668][   T10]      netlink_sendmsg+0x723/0xbe0
[  861.227668][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  861.227668][   T10]      ___sys_sendmsg+0xee/0x170
[  861.227668][   T10]      __sys_sendmsg+0xcd/0x170
[  861.227668][   T10]      do_syscall_64+0xc6/0x1e0
[  861.227668][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  861.227668][   T10] 
[  861.229921][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  861.229921][   T10]      netdev_get_by_index+0x5e/0x80
[  861.229921][   T10]      fib6_nh_init+0x3d8/0x1580
[  861.229921][   T10]      ip6_route_info_create+0xf18/0x17d0
[  861.229921][   T10]      addrconf_f6i_alloc+0x315/0x560
[  861.229921][   T10]      ipv6_add_addr+0x411/0x2000
[  861.229921][   T10]      inet6_addr_add+0x30e/0xa40
[  861.229921][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  861.229921][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  861.229921][   T10]      netlink_rcv_skb+0x130/0x360
[  861.229921][   T10]      netlink_unicast+0x449/0x710
[  861.229921][   T10]      netlink_sendmsg+0x723/0xbe0
[  861.229921][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  861.229921][   T10]      ___sys_sendmsg+0xee/0x170
[  861.229921][   T10]      __sys_sendmsg+0xcd/0x170
[  861.229921][   T10]      do_syscall_64+0xc6/0x1e0
[  861.229921][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  861.229921][   T10] 
[  861.232152][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  861.232152][   T10]      netdev_get_by_index+0x5e/0x80
[  861.232152][   T10]      fib6_nh_init+0x3d8/0x1580
[  861.232152][   T10]      ip6_route_info_create+0xf18/0x17d0
[  861.232152][   T10]      ip6_route_add+0x1c/0x140
[  861.232152][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  861.232152][   T10]      addrconf_add_dev+0xe2/0x170
[  861.232152][   T10]      inet6_addr_add+0x12f/0xa40
[  861.232152][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  861.232152][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  861.232152][   T10]      netlink_rcv_skb+0x130/0x360
[  861.232152][   T10]      netlink_unicast+0x449/0x710
[  861.232152][   T10]      netlink_sendmsg+0x723/0xbe0
[  861.232152][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  861.232152][   T10]      ___sys_sendmsg+0xee/0x170
[  861.232152][   T10]      __sys_sendmsg+0xcd/0x170
[  861.232152][   T10]      do_syscall_64+0xc6/0x1e0
[  861.232152][   T10] 
[  861.234715][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  861.234715][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  861.234715][   T10]      ipv6_find_idev+0x102/0x170
[  861.234715][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  861.234715][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  861.234715][   T10]      netlink_rcv_skb+0x130/0x360
[  861.234715][   T10]      netlink_unicast+0x449/0x710
[  861.234715][   T10]      netlink_sendmsg+0x723/0xbe0
[  861.234715][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  861.234715][   T10]      ___sys_sendmsg+0xee/0x170
[  861.234715][   T10]      __sys_sendmsg+0xcd/0x170
[  861.234715][   T10]      do_syscall_64+0xc6/0x1e0
[  861.234715][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  861.234715][   T10] 
[  861.236415][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  861.236415][   T10]      neigh_parms_alloc+0x1e5/0x510
[  861.236415][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  861.236415][   T10]      ipv6_find_idev+0x102/0x170
[  861.236415][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  861.236415][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  861.236415][   T10]      netlink_rcv_skb+0x130/0x360
[  861.236415][   T10]      netlink_unicast+0x449/0x710
[  861.236415][   T10]      netlink_sendmsg+0x723/0xbe0
[  861.236415][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  861.236415][   T10]      ___sys_sendmsg+0xee/0x170
[  861.236415][   T10]      __sys_sendmsg+0xcd/0x170
[  861.236415][   T10]      do_syscall_64+0xc6/0x1e0
[  861.236415][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  861.236415][   T10] 
[  861.481848][   T42] INFO: task modprobe:376 blocked for more than 737 seconds.
[  861.482413][   T42]       Not tainted 6.8.0-virtme #1
[  861.482557][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  861.482819][   T42] task:modprobe        state:D stack:25648 pid:376   tgid:376   ppid:39     flags:0x00004002
[  861.483114][   T42] Call Trace:
[  861.483223][   T42]  <TASK>
[  861.483304][   T42]  __schedule+0x705/0x1ac0
[  861.483475][   T42]  ? __pfx___schedule+0x10/0x10
[  861.483633][   T42]  ? schedule+0x1a5/0x210
[  861.483770][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  861.483921][   T42]  ? mark_lock+0x38/0x3e0
[  861.484034][   T42]  ? do_raw_spin_lock+0x131/0x270
[  861.484183][   T42]  ? schedule+0x1a5/0x210
[  861.484298][   T42]  schedule+0xdf/0x210
[  861.484414][   T42]  schedule_preempt_disabled+0x15/0x30
[  861.484556][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[  861.484718][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[  861.484902][   T42]  ? kasan_save_stack+0x34/0x50
[  861.485046][   T42]  ? kasan_save_stack+0x24/0x50
[  861.485206][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  861.485387][   T42]  ? lock_acquire+0x1c1/0x220
[  861.485530][   T42]  ? register_pernet_subsys+0x1a/0x50
[  861.485691][   T42]  down_write+0x1c9/0x200
[  861.485803][   T42]  ? __pfx_down_write+0x10/0x10
[  861.485969][   T42]  ? __pfx___lock_release+0x10/0x10
[  861.486115][   T42]  ? __pfx_nf_defrag_init+0x10/0x10 [nf_defrag_ipv4]
[  861.486292][   T42]  register_pernet_subsys+0x1a/0x50
[  861.486464][   T42]  nf_defrag_init+0x19/0xff0 [nf_defrag_ipv4]
[  861.486645][   T42]  do_one_initcall+0xc8/0x3f0
[  861.486813][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[  861.486972][   T42]  ? __create_object+0x5e/0xb0
[  861.487121][   T42]  ? kasan_unpoison+0x27/0x60
[  861.487270][   T42]  do_init_module+0x233/0x740
[  861.487441][   T42]  load_module+0x16b5/0x2350
[  861.487598][   T42]  ? __pfx_load_module+0x10/0x10
[  861.487751][   T42]  ? kernel_read_file+0x3d2/0x520
[  861.487900][   T42]  ? kernel_read_file+0x300/0x520
[  861.488060][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[  861.488213][   T42]  ? init_module_from_file+0xd2/0x130
[  861.488358][   T42]  init_module_from_file+0xd2/0x130
[  861.488503][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[  861.488696][   T42]  ? __lock_release+0x103/0x460
[  861.488839][   T42]  ? idempotent_init_module+0x32a/0x620
[  861.489013][   T42]  ? idempotent_init_module+0x32a/0x620
[  861.489152][   T42]  ? do_raw_spin_unlock+0x58/0x220
[  861.489296][   T42]  idempotent_init_module+0x342/0x620
[  861.489466][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[  861.489688][   T42]  __x64_sys_finit_module+0xbe/0x130
[  861.489838][   T42]  do_syscall_64+0xc6/0x1e0
[  861.489984][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  861.490202][   T42] RIP: 0033:0x7f5fd44b2e5d
[  861.490354][   T42] RSP: 002b:00007ffcc85e8928 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  861.490569][   T42] RAX: ffffffffffffffda RBX: 000055d19cb2e8d0 RCX: 00007f5fd44b2e5d
[  861.490805][   T42] RDX: 0000000000000000 RSI: 000055d18f6a6a2a RDI: 0000000000000000
[  861.491046][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 000055d19cb2dc10
[  861.491260][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055d18f6a6a2a
[  861.491471][   T42] R13: 000055d19cb2e880 R14: 000055d19cb2f710 R15: 0000000000000000
[  861.491733][   T42]  </TASK>
[  861.491843][   T42] 
[  861.491843][   T42] Showing all locks held in the system:
[  861.492055][   T42] 3 locks held by kworker/u16:0/10:
[  861.492197][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  861.492525][   T42]  #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  861.492786][   T42]  #2: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[  861.493039][   T42] 2 locks held by kworker/u20:0/39:
[  861.493182][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  861.493466][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  861.493789][   T42] 1 lock held by khungtaskd/42:
[  861.493926][   T42]  #0: ffffffff9b5591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[  861.494184][   T42] 1 lock held by modprobe/376:
[  861.494321][   T42]  #0: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[  861.494604][   T42] 
[  861.494694][   T42] =============================================
[  861.494694][   T42] 
[  871.473821][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  871.474208][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  871.474208][   T10]      dst_init+0x84/0x4a0
[  871.474208][   T10]      dst_alloc+0x97/0x150
[  871.474208][   T10]      ip6_dst_alloc+0x23/0x90
[  871.474208][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  871.474208][   T10]      ip6_pol_route+0x56f/0x840
[  871.474208][   T10]      fib6_rule_lookup+0x456/0x630
[  871.474208][   T10]      ip6_route_input+0x59c/0xa50
[  871.474208][   T10]      ipv6_rcv+0x397/0x810
[  871.474208][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  871.474208][   T10]      process_backlog+0x101/0x620
[  871.474208][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  871.474208][   T10]      net_rx_action+0x495/0xbe0
[  871.474208][   T10]      __do_softirq+0x1b5/0x7f6
[  871.474208][   T10] 
[  871.476064][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  871.476064][   T10]      netdev_get_by_index+0x5e/0x80
[  871.476064][   T10]      fib6_nh_init+0x3d8/0x1580
[  871.476064][   T10]      ip6_route_info_create+0xf18/0x17d0
[  871.476064][   T10]      ip6_route_add+0x1c/0x140
[  871.476064][   T10]      addrconf_prefix_route+0x2a6/0x430
[  871.476064][   T10]      inet6_addr_add+0x4f8/0xa40
[  871.476064][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  871.476064][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  871.476064][   T10]      netlink_rcv_skb+0x130/0x360
[  871.476064][   T10]      netlink_unicast+0x449/0x710
[  871.476064][   T10]      netlink_sendmsg+0x723/0xbe0
[  871.476064][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  871.476064][   T10]      ___sys_sendmsg+0xee/0x170
[  871.476064][   T10]      __sys_sendmsg+0xcd/0x170
[  871.476064][   T10]      do_syscall_64+0xc6/0x1e0
[  871.476064][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  871.476064][   T10] 
[  871.478333][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  871.478333][   T10]      netdev_get_by_index+0x5e/0x80
[  871.478333][   T10]      fib6_nh_init+0x3d8/0x1580
[  871.478333][   T10]      ip6_route_info_create+0xf18/0x17d0
[  871.478333][   T10]      addrconf_f6i_alloc+0x315/0x560
[  871.478333][   T10]      ipv6_add_addr+0x411/0x2000
[  871.478333][   T10]      inet6_addr_add+0x30e/0xa40
[  871.478333][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  871.478333][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  871.478333][   T10]      netlink_rcv_skb+0x130/0x360
[  871.478333][   T10]      netlink_unicast+0x449/0x710
[  871.478333][   T10]      netlink_sendmsg+0x723/0xbe0
[  871.478333][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  871.478333][   T10]      ___sys_sendmsg+0xee/0x170
[  871.478333][   T10]      __sys_sendmsg+0xcd/0x170
[  871.478333][   T10]      do_syscall_64+0xc6/0x1e0
[  871.478333][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  871.478333][   T10] 
[  871.480596][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  871.480596][   T10]      netdev_get_by_index+0x5e/0x80
[  871.480596][   T10]      fib6_nh_init+0x3d8/0x1580
[  871.480596][   T10]      ip6_route_info_create+0xf18/0x17d0
[  871.480596][   T10]      ip6_route_add+0x1c/0x140
[  871.480596][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  871.480596][   T10]      addrconf_add_dev+0xe2/0x170
[  871.480596][   T10]      inet6_addr_add+0x12f/0xa40
[  871.480596][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  871.480596][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  871.480596][   T10]      netlink_rcv_skb+0x130/0x360
[  871.480596][   T10]      netlink_unicast+0x449/0x710
[  871.480596][   T10]      netlink_sendmsg+0x723/0xbe0
[  871.480596][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  871.480596][   T10]      ___sys_sendmsg+0xee/0x170
[  871.480596][   T10]      __sys_sendmsg+0xcd/0x170
[  871.480596][   T10]      do_syscall_64+0xc6/0x1e0
[  871.480596][   T10] 
[  871.482838][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  871.482838][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  871.482838][   T10]      ipv6_find_idev+0x102/0x170
[  871.482838][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  871.482838][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  871.482838][   T10]      netlink_rcv_skb+0x130/0x360
[  871.482838][   T10]      netlink_unicast+0x449/0x710
[  871.482838][   T10]      netlink_sendmsg+0x723/0xbe0
[  871.482838][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  871.482838][   T10]      ___sys_sendmsg+0xee/0x170
[  871.482838][   T10]      __sys_sendmsg+0xcd/0x170
[  871.482838][   T10]      do_syscall_64+0xc6/0x1e0
[  871.482838][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  871.482838][   T10] 
[  871.484574][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  871.484574][   T10]      neigh_parms_alloc+0x1e5/0x510
[  871.484574][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  871.484574][   T10]      ipv6_find_idev+0x102/0x170
[  871.484574][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  871.484574][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  871.484574][   T10]      netlink_rcv_skb+0x130/0x360
[  871.484574][   T10]      netlink_unicast+0x449/0x710
[  871.484574][   T10]      netlink_sendmsg+0x723/0xbe0
[  871.484574][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  871.484574][   T10]      ___sys_sendmsg+0xee/0x170
[  871.484574][   T10]      __sys_sendmsg+0xcd/0x170
[  871.484574][   T10]      do_syscall_64+0xc6/0x1e0
[  871.484574][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  871.484574][   T10] 
[  871.486475][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  871.486748][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  871.486748][   T10]      dst_init+0x84/0x4a0
[  871.486748][   T10]      dst_alloc+0x97/0x150
[  871.486748][   T10]      ip6_dst_alloc+0x23/0x90
[  871.486748][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  871.486748][   T10]      ip6_pol_route+0x56f/0x840
[  871.486748][   T10]      fib6_rule_lookup+0x456/0x630
[  871.486748][   T10]      ip6_route_input+0x59c/0xa50
[  871.486748][   T10]      ipv6_rcv+0x397/0x810
[  871.486748][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  871.486748][   T10]      process_backlog+0x101/0x620
[  871.486748][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  871.486748][   T10]      net_rx_action+0x495/0xbe0
[  871.486748][   T10]      __do_softirq+0x1b5/0x7f6
[  871.486748][   T10] 
[  871.488594][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  871.488594][   T10]      netdev_get_by_index+0x5e/0x80
[  871.488594][   T10]      fib6_nh_init+0x3d8/0x1580
[  871.488594][   T10]      ip6_route_info_create+0xf18/0x17d0
[  871.488594][   T10]      ip6_route_add+0x1c/0x140
[  871.488594][   T10]      addrconf_prefix_route+0x2a6/0x430
[  871.488594][   T10]      inet6_addr_add+0x4f8/0xa40
[  871.488594][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  871.488594][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  871.488594][   T10]      netlink_rcv_skb+0x130/0x360
[  871.488594][   T10]      netlink_unicast+0x449/0x710
[  871.488594][   T10]      netlink_sendmsg+0x723/0xbe0
[  871.488594][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  871.488594][   T10]      ___sys_sendmsg+0xee/0x170
[  871.488594][   T10]      __sys_sendmsg+0xcd/0x170
[  871.488594][   T10]      do_syscall_64+0xc6/0x1e0
[  871.488594][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  871.488594][   T10] 
[  871.490847][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  871.490847][   T10]      netdev_get_by_index+0x5e/0x80
[  871.490847][   T10]      fib6_nh_init+0x3d8/0x1580
[  871.490847][   T10]      ip6_route_info_create+0xf18/0x17d0
[  871.490847][   T10]      addrconf_f6i_alloc+0x315/0x560
[  871.490847][   T10]      ipv6_add_addr+0x411/0x2000
[  871.490847][   T10]      inet6_addr_add+0x30e/0xa40
[  871.490847][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  871.490847][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  871.490847][   T10]      netlink_rcv_skb+0x130/0x360
[  871.490847][   T10]      netlink_unicast+0x449/0x710
[  871.490847][   T10]      netlink_sendmsg+0x723/0xbe0
[  871.490847][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  871.490847][   T10]      ___sys_sendmsg+0xee/0x170
[  871.490847][   T10]      __sys_sendmsg+0xcd/0x170
[  871.490847][   T10]      do_syscall_64+0xc6/0x1e0
[  871.490847][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  871.490847][   T10] 
[  871.493079][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  871.493079][   T10]      netdev_get_by_index+0x5e/0x80
[  871.493079][   T10]      fib6_nh_init+0x3d8/0x1580
[  871.493079][   T10]      ip6_route_info_create+0xf18/0x17d0
[  871.493079][   T10]      ip6_route_add+0x1c/0x140
[  871.493079][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  871.493079][   T10]      addrconf_add_dev+0xe2/0x170
[  871.493079][   T10]      inet6_addr_add+0x12f/0xa40
[  871.493079][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  871.493079][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  871.493079][   T10]      netlink_rcv_skb+0x130/0x360
[  871.493079][   T10]      netlink_unicast+0x449/0x710
[  871.493079][   T10]      netlink_sendmsg+0x723/0xbe0
[  871.493079][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  871.493079][   T10]      ___sys_sendmsg+0xee/0x170
[  871.493079][   T10]      __sys_sendmsg+0xcd/0x170
[  871.493079][   T10]      do_syscall_64+0xc6/0x1e0
[  871.493079][   T10] 
[  871.495271][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  871.495271][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  871.495271][   T10]      ipv6_find_idev+0x102/0x170
[  871.495271][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  871.495271][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  871.495271][   T10]      netlink_rcv_skb+0x130/0x360
[  871.495271][   T10]      netlink_unicast+0x449/0x710
[  871.495271][   T10]      netlink_sendmsg+0x723/0xbe0
[  871.495271][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  871.495271][   T10]      ___sys_sendmsg+0xee/0x170
[  871.495271][   T10]      __sys_sendmsg+0xcd/0x170
[  871.495271][   T10]      do_syscall_64+0xc6/0x1e0
[  871.495271][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  871.495271][   T10] 
[  871.496998][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  871.496998][   T10]      neigh_parms_alloc+0x1e5/0x510
[  871.496998][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  871.496998][   T10]      ipv6_find_idev+0x102/0x170
[  871.496998][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  871.496998][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  871.496998][   T10]      netlink_rcv_skb+0x130/0x360
[  871.496998][   T10]      netlink_unicast+0x449/0x710
[  871.496998][   T10]      netlink_sendmsg+0x723/0xbe0
[  871.496998][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  871.496998][   T10]      ___sys_sendmsg+0xee/0x170
[  871.496998][   T10]      __sys_sendmsg+0xcd/0x170
[  871.496998][   T10]      do_syscall_64+0xc6/0x1e0
[  871.496998][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  871.496998][   T10] 
[  881.737778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  881.738245][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  881.738245][   T10]      dst_init+0x84/0x4a0
[  881.738245][   T10]      dst_alloc+0x97/0x150
[  881.738245][   T10]      ip6_dst_alloc+0x23/0x90
[  881.738245][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  881.738245][   T10]      ip6_pol_route+0x56f/0x840
[  881.738245][   T10]      fib6_rule_lookup+0x456/0x630
[  881.738245][   T10]      ip6_route_input+0x59c/0xa50
[  881.738245][   T10]      ipv6_rcv+0x397/0x810
[  881.738245][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  881.738245][   T10]      process_backlog+0x101/0x620
[  881.738245][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  881.738245][   T10]      net_rx_action+0x495/0xbe0
[  881.738245][   T10]      __do_softirq+0x1b5/0x7f6
[  881.738245][   T10] 
[  881.740142][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  881.740142][   T10]      netdev_get_by_index+0x5e/0x80
[  881.740142][   T10]      fib6_nh_init+0x3d8/0x1580
[  881.740142][   T10]      ip6_route_info_create+0xf18/0x17d0
[  881.740142][   T10]      ip6_route_add+0x1c/0x140
[  881.740142][   T10]      addrconf_prefix_route+0x2a6/0x430
[  881.740142][   T10]      inet6_addr_add+0x4f8/0xa40
[  881.740142][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  881.740142][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  881.740142][   T10]      netlink_rcv_skb+0x130/0x360
[  881.740142][   T10]      netlink_unicast+0x449/0x710
[  881.740142][   T10]      netlink_sendmsg+0x723/0xbe0
[  881.740142][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  881.740142][   T10]      ___sys_sendmsg+0xee/0x170
[  881.740142][   T10]      __sys_sendmsg+0xcd/0x170
[  881.740142][   T10]      do_syscall_64+0xc6/0x1e0
[  881.740142][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  881.740142][   T10] 
[  881.742578][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  881.742578][   T10]      netdev_get_by_index+0x5e/0x80
[  881.742578][   T10]      fib6_nh_init+0x3d8/0x1580
[  881.742578][   T10]      ip6_route_info_create+0xf18/0x17d0
[  881.742578][   T10]      addrconf_f6i_alloc+0x315/0x560
[  881.742578][   T10]      ipv6_add_addr+0x411/0x2000
[  881.742578][   T10]      inet6_addr_add+0x30e/0xa40
[  881.742578][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  881.742578][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  881.742578][   T10]      netlink_rcv_skb+0x130/0x360
[  881.742578][   T10]      netlink_unicast+0x449/0x710
[  881.742578][   T10]      netlink_sendmsg+0x723/0xbe0
[  881.742578][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  881.742578][   T10]      ___sys_sendmsg+0xee/0x170
[  881.742578][   T10]      __sys_sendmsg+0xcd/0x170
[  881.742578][   T10]      do_syscall_64+0xc6/0x1e0
[  881.742578][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  881.742578][   T10] 
[  881.744903][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  881.744903][   T10]      netdev_get_by_index+0x5e/0x80
[  881.744903][   T10]      fib6_nh_init+0x3d8/0x1580
[  881.744903][   T10]      ip6_route_info_create+0xf18/0x17d0
[  881.744903][   T10]      ip6_route_add+0x1c/0x140
[  881.744903][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  881.744903][   T10]      addrconf_add_dev+0xe2/0x170
[  881.744903][   T10]      inet6_addr_add+0x12f/0xa40
[  881.744903][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  881.744903][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  881.744903][   T10]      netlink_rcv_skb+0x130/0x360
[  881.744903][   T10]      netlink_unicast+0x449/0x710
[  881.744903][   T10]      netlink_sendmsg+0x723/0xbe0
[  881.744903][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  881.744903][   T10]      ___sys_sendmsg+0xee/0x170
[  881.744903][   T10]      __sys_sendmsg+0xcd/0x170
[  881.744903][   T10]      do_syscall_64+0xc6/0x1e0
[  881.744903][   T10] 
[  881.747181][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  881.747181][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  881.747181][   T10]      ipv6_find_idev+0x102/0x170
[  881.747181][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  881.747181][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  881.747181][   T10]      netlink_rcv_skb+0x130/0x360
[  881.747181][   T10]      netlink_unicast+0x449/0x710
[  881.747181][   T10]      netlink_sendmsg+0x723/0xbe0
[  881.747181][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  881.747181][   T10]      ___sys_sendmsg+0xee/0x170
[  881.747181][   T10]      __sys_sendmsg+0xcd/0x170
[  881.747181][   T10]      do_syscall_64+0xc6/0x1e0
[  881.747181][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  881.747181][   T10] 
[  881.748958][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  881.748958][   T10]      neigh_parms_alloc+0x1e5/0x510
[  881.748958][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  881.748958][   T10]      ipv6_find_idev+0x102/0x170
[  881.748958][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  881.748958][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  881.748958][   T10]      netlink_rcv_skb+0x130/0x360
[  881.748958][   T10]      netlink_unicast+0x449/0x710
[  881.748958][   T10]      netlink_sendmsg+0x723/0xbe0
[  881.748958][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  881.748958][   T10]      ___sys_sendmsg+0xee/0x170
[  881.748958][   T10]      __sys_sendmsg+0xcd/0x170
[  881.748958][   T10]      do_syscall_64+0xc6/0x1e0
[  881.748958][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  881.748958][   T10] 
[  881.750915][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  881.751186][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  881.751186][   T10]      dst_init+0x84/0x4a0
[  881.751186][   T10]      dst_alloc+0x97/0x150
[  881.751186][   T10]      ip6_dst_alloc+0x23/0x90
[  881.751186][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  881.751186][   T10]      ip6_pol_route+0x56f/0x840
[  881.751186][   T10]      fib6_rule_lookup+0x456/0x630
[  881.751186][   T10]      ip6_route_input+0x59c/0xa50
[  881.751186][   T10]      ipv6_rcv+0x397/0x810
[  881.751186][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  881.751186][   T10]      process_backlog+0x101/0x620
[  881.751186][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  881.751186][   T10]      net_rx_action+0x495/0xbe0
[  881.751186][   T10]      __do_softirq+0x1b5/0x7f6
[  881.751186][   T10] 
[  881.753052][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  881.753052][   T10]      netdev_get_by_index+0x5e/0x80
[  881.753052][   T10]      fib6_nh_init+0x3d8/0x1580
[  881.753052][   T10]      ip6_route_info_create+0xf18/0x17d0
[  881.753052][   T10]      ip6_route_add+0x1c/0x140
[  881.753052][   T10]      addrconf_prefix_route+0x2a6/0x430
[  881.753052][   T10]      inet6_addr_add+0x4f8/0xa40
[  881.753052][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  881.753052][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  881.753052][   T10]      netlink_rcv_skb+0x130/0x360
[  881.753052][   T10]      netlink_unicast+0x449/0x710
[  881.753052][   T10]      netlink_sendmsg+0x723/0xbe0
[  881.753052][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  881.753052][   T10]      ___sys_sendmsg+0xee/0x170
[  881.753052][   T10]      __sys_sendmsg+0xcd/0x170
[  881.753052][   T10]      do_syscall_64+0xc6/0x1e0
[  881.753052][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  881.753052][   T10] 
[  881.755321][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  881.755321][   T10]      netdev_get_by_index+0x5e/0x80
[  881.755321][   T10]      fib6_nh_init+0x3d8/0x1580
[  881.755321][   T10]      ip6_route_info_create+0xf18/0x17d0
[  881.755321][   T10]      addrconf_f6i_alloc+0x315/0x560
[  881.755321][   T10]      ipv6_add_addr+0x411/0x2000
[  881.755321][   T10]      inet6_addr_add+0x30e/0xa40
[  881.755321][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  881.755321][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  881.755321][   T10]      netlink_rcv_skb+0x130/0x360
[  881.755321][   T10]      netlink_unicast+0x449/0x710
[  881.755321][   T10]      netlink_sendmsg+0x723/0xbe0
[  881.755321][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  881.755321][   T10]      ___sys_sendmsg+0xee/0x170
[  881.755321][   T10]      __sys_sendmsg+0xcd/0x170
[  881.755321][   T10]      do_syscall_64+0xc6/0x1e0
[  881.755321][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  881.755321][   T10] 
[  881.757608][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  881.757608][   T10]      netdev_get_by_index+0x5e/0x80
[  881.757608][   T10]      fib6_nh_init+0x3d8/0x1580
[  881.757608][   T10]      ip6_route_info_create+0xf18/0x17d0
[  881.757608][   T10]      ip6_route_add+0x1c/0x140
[  881.757608][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  881.757608][   T10]      addrconf_add_dev+0xe2/0x170
[  881.757608][   T10]      inet6_addr_add+0x12f/0xa40
[  881.757608][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  881.757608][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  881.757608][   T10]      netlink_rcv_skb+0x130/0x360
[  881.757608][   T10]      netlink_unicast+0x449/0x710
[  881.757608][   T10]      netlink_sendmsg+0x723/0xbe0
[  881.757608][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  881.757608][   T10]      ___sys_sendmsg+0xee/0x170
[  881.757608][   T10]      __sys_sendmsg+0xcd/0x170
[  881.757608][   T10]      do_syscall_64+0xc6/0x1e0
[  881.757608][   T10] 
[  881.759862][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  881.759862][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  881.759862][   T10]      ipv6_find_idev+0x102/0x170
[  881.759862][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  881.759862][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  881.759862][   T10]      netlink_rcv_skb+0x130/0x360
[  881.759862][   T10]      netlink_unicast+0x449/0x710
[  881.759862][   T10]      netlink_sendmsg+0x723/0xbe0
[  881.759862][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  881.759862][   T10]      ___sys_sendmsg+0xee/0x170
[  881.759862][   T10]      __sys_sendmsg+0xcd/0x170
[  881.759862][   T10]      do_syscall_64+0xc6/0x1e0
[  881.759862][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  881.759862][   T10] 
[  881.761633][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  881.761633][   T10]      neigh_parms_alloc+0x1e5/0x510
[  881.761633][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  881.761633][   T10]      ipv6_find_idev+0x102/0x170
[  881.761633][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  881.761633][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  881.761633][   T10]      netlink_rcv_skb+0x130/0x360
[  881.761633][   T10]      netlink_unicast+0x449/0x710
[  881.761633][   T10]      netlink_sendmsg+0x723/0xbe0
[  881.761633][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  881.761633][   T10]      ___sys_sendmsg+0xee/0x170
[  881.761633][   T10]      __sys_sendmsg+0xcd/0x170
[  881.761633][   T10]      do_syscall_64+0xc6/0x1e0
[  881.761633][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  881.761633][   T10] 
[  892.001785][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  892.002223][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  892.002223][   T10]      dst_init+0x84/0x4a0
[  892.002223][   T10]      dst_alloc+0x97/0x150
[  892.002223][   T10]      ip6_dst_alloc+0x23/0x90
[  892.002223][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  892.002223][   T10]      ip6_pol_route+0x56f/0x840
[  892.002223][   T10]      fib6_rule_lookup+0x456/0x630
[  892.002223][   T10]      ip6_route_input+0x59c/0xa50
[  892.002223][   T10]      ipv6_rcv+0x397/0x810
[  892.002223][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  892.002223][   T10]      process_backlog+0x101/0x620
[  892.002223][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  892.002223][   T10]      net_rx_action+0x495/0xbe0
[  892.002223][   T10]      __do_softirq+0x1b5/0x7f6
[  892.002223][   T10] 
[  892.004090][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  892.004090][   T10]      netdev_get_by_index+0x5e/0x80
[  892.004090][   T10]      fib6_nh_init+0x3d8/0x1580
[  892.004090][   T10]      ip6_route_info_create+0xf18/0x17d0
[  892.004090][   T10]      ip6_route_add+0x1c/0x140
[  892.004090][   T10]      addrconf_prefix_route+0x2a6/0x430
[  892.004090][   T10]      inet6_addr_add+0x4f8/0xa40
[  892.004090][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  892.004090][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  892.004090][   T10]      netlink_rcv_skb+0x130/0x360
[  892.004090][   T10]      netlink_unicast+0x449/0x710
[  892.004090][   T10]      netlink_sendmsg+0x723/0xbe0
[  892.004090][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  892.004090][   T10]      ___sys_sendmsg+0xee/0x170
[  892.004090][   T10]      __sys_sendmsg+0xcd/0x170
[  892.004090][   T10]      do_syscall_64+0xc6/0x1e0
[  892.004090][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  892.004090][   T10] 
[  892.006336][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  892.006336][   T10]      netdev_get_by_index+0x5e/0x80
[  892.006336][   T10]      fib6_nh_init+0x3d8/0x1580
[  892.006336][   T10]      ip6_route_info_create+0xf18/0x17d0
[  892.006336][   T10]      addrconf_f6i_alloc+0x315/0x560
[  892.006336][   T10]      ipv6_add_addr+0x411/0x2000
[  892.006336][   T10]      inet6_addr_add+0x30e/0xa40
[  892.006336][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  892.006336][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  892.006336][   T10]      netlink_rcv_skb+0x130/0x360
[  892.006336][   T10]      netlink_unicast+0x449/0x710
[  892.006336][   T10]      netlink_sendmsg+0x723/0xbe0
[  892.006336][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  892.006336][   T10]      ___sys_sendmsg+0xee/0x170
[  892.006336][   T10]      __sys_sendmsg+0xcd/0x170
[  892.006336][   T10]      do_syscall_64+0xc6/0x1e0
[  892.006336][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  892.006336][   T10] 
[  892.008606][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  892.008606][   T10]      netdev_get_by_index+0x5e/0x80
[  892.008606][   T10]      fib6_nh_init+0x3d8/0x1580
[  892.008606][   T10]      ip6_route_info_create+0xf18/0x17d0
[  892.008606][   T10]      ip6_route_add+0x1c/0x140
[  892.008606][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  892.008606][   T10]      addrconf_add_dev+0xe2/0x170
[  892.008606][   T10]      inet6_addr_add+0x12f/0xa40
[  892.008606][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  892.008606][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  892.008606][   T10]      netlink_rcv_skb+0x130/0x360
[  892.008606][   T10]      netlink_unicast+0x449/0x710
[  892.008606][   T10]      netlink_sendmsg+0x723/0xbe0
[  892.008606][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  892.008606][   T10]      ___sys_sendmsg+0xee/0x170
[  892.008606][   T10]      __sys_sendmsg+0xcd/0x170
[  892.008606][   T10]      do_syscall_64+0xc6/0x1e0
[  892.008606][   T10] 
[  892.010860][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  892.010860][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  892.010860][   T10]      ipv6_find_idev+0x102/0x170
[  892.010860][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  892.010860][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  892.010860][   T10]      netlink_rcv_skb+0x130/0x360
[  892.010860][   T10]      netlink_unicast+0x449/0x710
[  892.010860][   T10]      netlink_sendmsg+0x723/0xbe0
[  892.010860][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  892.010860][   T10]      ___sys_sendmsg+0xee/0x170
[  892.010860][   T10]      __sys_sendmsg+0xcd/0x170
[  892.010860][   T10]      do_syscall_64+0xc6/0x1e0
[  892.010860][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  892.010860][   T10] 
[  892.012601][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  892.012601][   T10]      neigh_parms_alloc+0x1e5/0x510
[  892.012601][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  892.012601][   T10]      ipv6_find_idev+0x102/0x170
[  892.012601][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  892.012601][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  892.012601][   T10]      netlink_rcv_skb+0x130/0x360
[  892.012601][   T10]      netlink_unicast+0x449/0x710
[  892.012601][   T10]      netlink_sendmsg+0x723/0xbe0
[  892.012601][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  892.012601][   T10]      ___sys_sendmsg+0xee/0x170
[  892.012601][   T10]      __sys_sendmsg+0xcd/0x170
[  892.012601][   T10]      do_syscall_64+0xc6/0x1e0
[  892.012601][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  892.012601][   T10] 
[  892.014500][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  892.014776][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  892.014776][   T10]      dst_init+0x84/0x4a0
[  892.014776][   T10]      dst_alloc+0x97/0x150
[  892.014776][   T10]      ip6_dst_alloc+0x23/0x90
[  892.014776][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  892.014776][   T10]      ip6_pol_route+0x56f/0x840
[  892.014776][   T10]      fib6_rule_lookup+0x456/0x630
[  892.014776][   T10]      ip6_route_input+0x59c/0xa50
[  892.014776][   T10]      ipv6_rcv+0x397/0x810
[  892.014776][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  892.014776][   T10]      process_backlog+0x101/0x620
[  892.014776][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  892.014776][   T10]      net_rx_action+0x495/0xbe0
[  892.014776][   T10]      __do_softirq+0x1b5/0x7f6
[  892.014776][   T10] 
[  892.016618][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  892.016618][   T10]      netdev_get_by_index+0x5e/0x80
[  892.016618][   T10]      fib6_nh_init+0x3d8/0x1580
[  892.016618][   T10]      ip6_route_info_create+0xf18/0x17d0
[  892.016618][   T10]      ip6_route_add+0x1c/0x140
[  892.016618][   T10]      addrconf_prefix_route+0x2a6/0x430
[  892.016618][   T10]      inet6_addr_add+0x4f8/0xa40
[  892.016618][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  892.016618][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  892.016618][   T10]      netlink_rcv_skb+0x130/0x360
[  892.016618][   T10]      netlink_unicast+0x449/0x710
[  892.016618][   T10]      netlink_sendmsg+0x723/0xbe0
[  892.016618][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  892.016618][   T10]      ___sys_sendmsg+0xee/0x170
[  892.016618][   T10]      __sys_sendmsg+0xcd/0x170
[  892.016618][   T10]      do_syscall_64+0xc6/0x1e0
[  892.016618][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  892.016618][   T10] 
[  892.018876][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  892.018876][   T10]      netdev_get_by_index+0x5e/0x80
[  892.018876][   T10]      fib6_nh_init+0x3d8/0x1580
[  892.018876][   T10]      ip6_route_info_create+0xf18/0x17d0
[  892.018876][   T10]      addrconf_f6i_alloc+0x315/0x560
[  892.018876][   T10]      ipv6_add_addr+0x411/0x2000
[  892.018876][   T10]      inet6_addr_add+0x30e/0xa40
[  892.018876][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  892.018876][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  892.018876][   T10]      netlink_rcv_skb+0x130/0x360
[  892.018876][   T10]      netlink_unicast+0x449/0x710
[  892.018876][   T10]      netlink_sendmsg+0x723/0xbe0
[  892.018876][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  892.018876][   T10]      ___sys_sendmsg+0xee/0x170
[  892.018876][   T10]      __sys_sendmsg+0xcd/0x170
[  892.018876][   T10]      do_syscall_64+0xc6/0x1e0
[  892.018876][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  892.018876][   T10] 
[  892.021114][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  892.021114][   T10]      netdev_get_by_index+0x5e/0x80
[  892.021114][   T10]      fib6_nh_init+0x3d8/0x1580
[  892.021114][   T10]      ip6_route_info_create+0xf18/0x17d0
[  892.021114][   T10]      ip6_route_add+0x1c/0x140
[  892.021114][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  892.021114][   T10]      addrconf_add_dev+0xe2/0x170
[  892.021114][   T10]      inet6_addr_add+0x12f/0xa40
[  892.021114][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  892.021114][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  892.021114][   T10]      netlink_rcv_skb+0x130/0x360
[  892.021114][   T10]      netlink_unicast+0x449/0x710
[  892.021114][   T10]      netlink_sendmsg+0x723/0xbe0
[  892.021114][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  892.021114][   T10]      ___sys_sendmsg+0xee/0x170
[  892.021114][   T10]      __sys_sendmsg+0xcd/0x170
[  892.021114][   T10]      do_syscall_64+0xc6/0x1e0
[  892.021114][   T10] 
[  892.023299][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  892.023299][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  892.023299][   T10]      ipv6_find_idev+0x102/0x170
[  892.023299][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  892.023299][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  892.023299][   T10]      netlink_rcv_skb+0x130/0x360
[  892.023299][   T10]      netlink_unicast+0x449/0x710
[  892.023299][   T10]      netlink_sendmsg+0x723/0xbe0
[  892.023299][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  892.023299][   T10]      ___sys_sendmsg+0xee/0x170
[  892.023299][   T10]      __sys_sendmsg+0xcd/0x170
[  892.023299][   T10]      do_syscall_64+0xc6/0x1e0
[  892.023299][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  892.023299][   T10] 
[  892.025008][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  892.025008][   T10]      neigh_parms_alloc+0x1e5/0x510
[  892.025008][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  892.025008][   T10]      ipv6_find_idev+0x102/0x170
[  892.025008][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  892.025008][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  892.025008][   T10]      netlink_rcv_skb+0x130/0x360
[  892.025008][   T10]      netlink_unicast+0x449/0x710
[  892.025008][   T10]      netlink_sendmsg+0x723/0xbe0
[  892.025008][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  892.025008][   T10]      ___sys_sendmsg+0xee/0x170
[  892.025008][   T10]      __sys_sendmsg+0xcd/0x170
[  892.025008][   T10]      do_syscall_64+0xc6/0x1e0
[  892.025008][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  892.025008][   T10] 
[  902.097858][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  902.098533][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  902.098533][   T10]      dst_init+0x84/0x4a0
[  902.098533][   T10]      dst_alloc+0x97/0x150
[  902.098533][   T10]      ip6_dst_alloc+0x23/0x90
[  902.098533][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  902.098533][   T10]      ip6_pol_route+0x56f/0x840
[  902.098533][   T10]      fib6_rule_lookup+0x456/0x630
[  902.098533][   T10]      ip6_route_input+0x59c/0xa50
[  902.098533][   T10]      ipv6_rcv+0x397/0x810
[  902.098533][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  902.098533][   T10]      process_backlog+0x101/0x620
[  902.098533][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  902.098533][   T10]      net_rx_action+0x495/0xbe0
[  902.098533][   T10]      __do_softirq+0x1b5/0x7f6
[  902.098533][   T10] 
[  902.100430][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  902.100430][   T10]      netdev_get_by_index+0x5e/0x80
[  902.100430][   T10]      fib6_nh_init+0x3d8/0x1580
[  902.100430][   T10]      ip6_route_info_create+0xf18/0x17d0
[  902.100430][   T10]      ip6_route_add+0x1c/0x140
[  902.100430][   T10]      addrconf_prefix_route+0x2a6/0x430
[  902.100430][   T10]      inet6_addr_add+0x4f8/0xa40
[  902.100430][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  902.100430][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  902.100430][   T10]      netlink_rcv_skb+0x130/0x360
[  902.100430][   T10]      netlink_unicast+0x449/0x710
[  902.100430][   T10]      netlink_sendmsg+0x723/0xbe0
[  902.100430][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  902.100430][   T10]      ___sys_sendmsg+0xee/0x170
[  902.100430][   T10]      __sys_sendmsg+0xcd/0x170
[  902.100430][   T10]      do_syscall_64+0xc6/0x1e0
[  902.100430][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  902.100430][   T10] 
[  902.102685][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  902.102685][   T10]      netdev_get_by_index+0x5e/0x80
[  902.102685][   T10]      fib6_nh_init+0x3d8/0x1580
[  902.102685][   T10]      ip6_route_info_create+0xf18/0x17d0
[  902.102685][   T10]      addrconf_f6i_alloc+0x315/0x560
[  902.102685][   T10]      ipv6_add_addr+0x411/0x2000
[  902.102685][   T10]      inet6_addr_add+0x30e/0xa40
[  902.102685][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  902.102685][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  902.102685][   T10]      netlink_rcv_skb+0x130/0x360
[  902.102685][   T10]      netlink_unicast+0x449/0x710
[  902.102685][   T10]      netlink_sendmsg+0x723/0xbe0
[  902.102685][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  902.102685][   T10]      ___sys_sendmsg+0xee/0x170
[  902.102685][   T10]      __sys_sendmsg+0xcd/0x170
[  902.102685][   T10]      do_syscall_64+0xc6/0x1e0
[  902.102685][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  902.102685][   T10] 
[  902.104967][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  902.104967][   T10]      netdev_get_by_index+0x5e/0x80
[  902.104967][   T10]      fib6_nh_init+0x3d8/0x1580
[  902.104967][   T10]      ip6_route_info_create+0xf18/0x17d0
[  902.104967][   T10]      ip6_route_add+0x1c/0x140
[  902.104967][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  902.104967][   T10]      addrconf_add_dev+0xe2/0x170
[  902.104967][   T10]      inet6_addr_add+0x12f/0xa40
[  902.104967][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  902.104967][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  902.104967][   T10]      netlink_rcv_skb+0x130/0x360
[  902.104967][   T10]      netlink_unicast+0x449/0x710
[  902.104967][   T10]      netlink_sendmsg+0x723/0xbe0
[  902.104967][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  902.104967][   T10]      ___sys_sendmsg+0xee/0x170
[  902.104967][   T10]      __sys_sendmsg+0xcd/0x170
[  902.104967][   T10]      do_syscall_64+0xc6/0x1e0
[  902.104967][   T10] 
[  902.107213][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  902.107213][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  902.107213][   T10]      ipv6_find_idev+0x102/0x170
[  902.107213][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  902.107213][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  902.107213][   T10]      netlink_rcv_skb+0x130/0x360
[  902.107213][   T10]      netlink_unicast+0x449/0x710
[  902.107213][   T10]      netlink_sendmsg+0x723/0xbe0
[  902.107213][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  902.107213][   T10]      ___sys_sendmsg+0xee/0x170
[  902.107213][   T10]      __sys_sendmsg+0xcd/0x170
[  902.107213][   T10]      do_syscall_64+0xc6/0x1e0
[  902.107213][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  902.107213][   T10] 
[  902.108965][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  902.108965][   T10]      neigh_parms_alloc+0x1e5/0x510
[  902.108965][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  902.108965][   T10]      ipv6_find_idev+0x102/0x170
[  902.108965][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  902.108965][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  902.108965][   T10]      netlink_rcv_skb+0x130/0x360
[  902.108965][   T10]      netlink_unicast+0x449/0x710
[  902.108965][   T10]      netlink_sendmsg+0x723/0xbe0
[  902.108965][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  902.108965][   T10]      ___sys_sendmsg+0xee/0x170
[  902.108965][   T10]      __sys_sendmsg+0xcd/0x170
[  902.108965][   T10]      do_syscall_64+0xc6/0x1e0
[  902.108965][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  902.108965][   T10] 
[  902.110852][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  902.111116][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  902.111116][   T10]      dst_init+0x84/0x4a0
[  902.111116][   T10]      dst_alloc+0x97/0x150
[  902.111116][   T10]      ip6_dst_alloc+0x23/0x90
[  902.111116][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  902.111116][   T10]      ip6_pol_route+0x56f/0x840
[  902.111116][   T10]      fib6_rule_lookup+0x456/0x630
[  902.111116][   T10]      ip6_route_input+0x59c/0xa50
[  902.111116][   T10]      ipv6_rcv+0x397/0x810
[  902.111116][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  902.111116][   T10]      process_backlog+0x101/0x620
[  902.111116][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  902.111116][   T10]      net_rx_action+0x495/0xbe0
[  902.111116][   T10]      __do_softirq+0x1b5/0x7f6
[  902.111116][   T10] 
[  902.112960][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  902.112960][   T10]      netdev_get_by_index+0x5e/0x80
[  902.112960][   T10]      fib6_nh_init+0x3d8/0x1580
[  902.112960][   T10]      ip6_route_info_create+0xf18/0x17d0
[  902.112960][   T10]      ip6_route_add+0x1c/0x140
[  902.112960][   T10]      addrconf_prefix_route+0x2a6/0x430
[  902.112960][   T10]      inet6_addr_add+0x4f8/0xa40
[  902.112960][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  902.112960][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  902.112960][   T10]      netlink_rcv_skb+0x130/0x360
[  902.112960][   T10]      netlink_unicast+0x449/0x710
[  902.112960][   T10]      netlink_sendmsg+0x723/0xbe0
[  902.112960][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  902.112960][   T10]      ___sys_sendmsg+0xee/0x170
[  902.112960][   T10]      __sys_sendmsg+0xcd/0x170
[  902.112960][   T10]      do_syscall_64+0xc6/0x1e0
[  902.112960][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  902.112960][   T10] 
[  902.115278][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  902.115278][   T10]      netdev_get_by_index+0x5e/0x80
[  902.115278][   T10]      fib6_nh_init+0x3d8/0x1580
[  902.115278][   T10]      ip6_route_info_create+0xf18/0x17d0
[  902.115278][   T10]      addrconf_f6i_alloc+0x315/0x560
[  902.115278][   T10]      ipv6_add_addr+0x411/0x2000
[  902.115278][   T10]      inet6_addr_add+0x30e/0xa40
[  902.115278][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  902.115278][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  902.115278][   T10]      netlink_rcv_skb+0x130/0x360
[  902.115278][   T10]      netlink_unicast+0x449/0x710
[  902.115278][   T10]      netlink_sendmsg+0x723/0xbe0
[  902.115278][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  902.115278][   T10]      ___sys_sendmsg+0xee/0x170
[  902.115278][   T10]      __sys_sendmsg+0xcd/0x170
[  902.115278][   T10]      do_syscall_64+0xc6/0x1e0
[  902.115278][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  902.115278][   T10] 
[  902.117510][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  902.117510][   T10]      netdev_get_by_index+0x5e/0x80
[  902.117510][   T10]      fib6_nh_init+0x3d8/0x1580
[  902.117510][   T10]      ip6_route_info_create+0xf18/0x17d0
[  902.117510][   T10]      ip6_route_add+0x1c/0x140
[  902.117510][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  902.117510][   T10]      addrconf_add_dev+0xe2/0x170
[  902.117510][   T10]      inet6_addr_add+0x12f/0xa40
[  902.117510][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  902.117510][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  902.117510][   T10]      netlink_rcv_skb+0x130/0x360
[  902.117510][   T10]      netlink_unicast+0x449/0x710
[  902.117510][   T10]      netlink_sendmsg+0x723/0xbe0
[  902.117510][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  902.117510][   T10]      ___sys_sendmsg+0xee/0x170
[  902.117510][   T10]      __sys_sendmsg+0xcd/0x170
[  902.117510][   T10]      do_syscall_64+0xc6/0x1e0
[  902.117510][   T10] 
[  902.119766][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  902.119766][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  902.119766][   T10]      ipv6_find_idev+0x102/0x170
[  902.119766][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  902.119766][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  902.119766][   T10]      netlink_rcv_skb+0x130/0x360
[  902.119766][   T10]      netlink_unicast+0x449/0x710
[  902.119766][   T10]      netlink_sendmsg+0x723/0xbe0
[  902.119766][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  902.119766][   T10]      ___sys_sendmsg+0xee/0x170
[  902.119766][   T10]      __sys_sendmsg+0xcd/0x170
[  902.119766][   T10]      do_syscall_64+0xc6/0x1e0
[  902.119766][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  902.119766][   T10] 
[  902.121503][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  902.121503][   T10]      neigh_parms_alloc+0x1e5/0x510
[  902.121503][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  902.121503][   T10]      ipv6_find_idev+0x102/0x170
[  902.121503][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  902.121503][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  902.121503][   T10]      netlink_rcv_skb+0x130/0x360
[  902.121503][   T10]      netlink_unicast+0x449/0x710
[  902.121503][   T10]      netlink_sendmsg+0x723/0xbe0
[  902.121503][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  902.121503][   T10]      ___sys_sendmsg+0xee/0x170
[  902.121503][   T10]      __sys_sendmsg+0xcd/0x170
[  902.121503][   T10]      do_syscall_64+0xc6/0x1e0
[  902.121503][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  902.121503][   T10] 
[  912.241851][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  912.242586][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  912.242586][   T10]      dst_init+0x84/0x4a0
[  912.242586][   T10]      dst_alloc+0x97/0x150
[  912.242586][   T10]      ip6_dst_alloc+0x23/0x90
[  912.242586][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  912.242586][   T10]      ip6_pol_route+0x56f/0x840
[  912.242586][   T10]      fib6_rule_lookup+0x456/0x630
[  912.242586][   T10]      ip6_route_input+0x59c/0xa50
[  912.242586][   T10]      ipv6_rcv+0x397/0x810
[  912.242586][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  912.242586][   T10]      process_backlog+0x101/0x620
[  912.242586][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  912.242586][   T10]      net_rx_action+0x495/0xbe0
[  912.242586][   T10]      __do_softirq+0x1b5/0x7f6
[  912.242586][   T10] 
[  912.244508][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  912.244508][   T10]      netdev_get_by_index+0x5e/0x80
[  912.244508][   T10]      fib6_nh_init+0x3d8/0x1580
[  912.244508][   T10]      ip6_route_info_create+0xf18/0x17d0
[  912.244508][   T10]      ip6_route_add+0x1c/0x140
[  912.244508][   T10]      addrconf_prefix_route+0x2a6/0x430
[  912.244508][   T10]      inet6_addr_add+0x4f8/0xa40
[  912.244508][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  912.244508][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  912.244508][   T10]      netlink_rcv_skb+0x130/0x360
[  912.244508][   T10]      netlink_unicast+0x449/0x710
[  912.244508][   T10]      netlink_sendmsg+0x723/0xbe0
[  912.244508][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  912.244508][   T10]      ___sys_sendmsg+0xee/0x170
[  912.244508][   T10]      __sys_sendmsg+0xcd/0x170
[  912.244508][   T10]      do_syscall_64+0xc6/0x1e0
[  912.244508][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  912.244508][   T10] 
[  912.246821][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  912.246821][   T10]      netdev_get_by_index+0x5e/0x80
[  912.246821][   T10]      fib6_nh_init+0x3d8/0x1580
[  912.246821][   T10]      ip6_route_info_create+0xf18/0x17d0
[  912.246821][   T10]      addrconf_f6i_alloc+0x315/0x560
[  912.246821][   T10]      ipv6_add_addr+0x411/0x2000
[  912.246821][   T10]      inet6_addr_add+0x30e/0xa40
[  912.246821][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  912.246821][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  912.246821][   T10]      netlink_rcv_skb+0x130/0x360
[  912.246821][   T10]      netlink_unicast+0x449/0x710
[  912.246821][   T10]      netlink_sendmsg+0x723/0xbe0
[  912.246821][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  912.246821][   T10]      ___sys_sendmsg+0xee/0x170
[  912.246821][   T10]      __sys_sendmsg+0xcd/0x170
[  912.246821][   T10]      do_syscall_64+0xc6/0x1e0
[  912.246821][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  912.246821][   T10] 
[  912.249147][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  912.249147][   T10]      netdev_get_by_index+0x5e/0x80
[  912.249147][   T10]      fib6_nh_init+0x3d8/0x1580
[  912.249147][   T10]      ip6_route_info_create+0xf18/0x17d0
[  912.249147][   T10]      ip6_route_add+0x1c/0x140
[  912.249147][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  912.249147][   T10]      addrconf_add_dev+0xe2/0x170
[  912.249147][   T10]      inet6_addr_add+0x12f/0xa40
[  912.249147][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  912.249147][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  912.249147][   T10]      netlink_rcv_skb+0x130/0x360
[  912.249147][   T10]      netlink_unicast+0x449/0x710
[  912.249147][   T10]      netlink_sendmsg+0x723/0xbe0
[  912.249147][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  912.249147][   T10]      ___sys_sendmsg+0xee/0x170
[  912.249147][   T10]      __sys_sendmsg+0xcd/0x170
[  912.249147][   T10]      do_syscall_64+0xc6/0x1e0
[  912.249147][   T10] 
[  912.251373][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  912.251373][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  912.251373][   T10]      ipv6_find_idev+0x102/0x170
[  912.251373][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  912.251373][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  912.251373][   T10]      netlink_rcv_skb+0x130/0x360
[  912.251373][   T10]      netlink_unicast+0x449/0x710
[  912.251373][   T10]      netlink_sendmsg+0x723/0xbe0
[  912.251373][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  912.251373][   T10]      ___sys_sendmsg+0xee/0x170
[  912.251373][   T10]      __sys_sendmsg+0xcd/0x170
[  912.251373][   T10]      do_syscall_64+0xc6/0x1e0
[  912.251373][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  912.251373][   T10] 
[  912.253084][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  912.253084][   T10]      neigh_parms_alloc+0x1e5/0x510
[  912.253084][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  912.253084][   T10]      ipv6_find_idev+0x102/0x170
[  912.253084][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  912.253084][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  912.253084][   T10]      netlink_rcv_skb+0x130/0x360
[  912.253084][   T10]      netlink_unicast+0x449/0x710
[  912.253084][   T10]      netlink_sendmsg+0x723/0xbe0
[  912.253084][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  912.253084][   T10]      ___sys_sendmsg+0xee/0x170
[  912.253084][   T10]      __sys_sendmsg+0xcd/0x170
[  912.253084][   T10]      do_syscall_64+0xc6/0x1e0
[  912.253084][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  912.253084][   T10] 
[  912.255016][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  912.255313][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  912.255313][   T10]      dst_init+0x84/0x4a0
[  912.255313][   T10]      dst_alloc+0x97/0x150
[  912.255313][   T10]      ip6_dst_alloc+0x23/0x90
[  912.255313][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  912.255313][   T10]      ip6_pol_route+0x56f/0x840
[  912.255313][   T10]      fib6_rule_lookup+0x456/0x630
[  912.255313][   T10]      ip6_route_input+0x59c/0xa50
[  912.255313][   T10]      ipv6_rcv+0x397/0x810
[  912.255313][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  912.255313][   T10]      process_backlog+0x101/0x620
[  912.255313][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  912.255313][   T10]      net_rx_action+0x495/0xbe0
[  912.255313][   T10]      __do_softirq+0x1b5/0x7f6
[  912.255313][   T10] 
[  912.257165][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  912.257165][   T10]      netdev_get_by_index+0x5e/0x80
[  912.257165][   T10]      fib6_nh_init+0x3d8/0x1580
[  912.257165][   T10]      ip6_route_info_create+0xf18/0x17d0
[  912.257165][   T10]      ip6_route_add+0x1c/0x140
[  912.257165][   T10]      addrconf_prefix_route+0x2a6/0x430
[  912.257165][   T10]      inet6_addr_add+0x4f8/0xa40
[  912.257165][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  912.257165][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  912.257165][   T10]      netlink_rcv_skb+0x130/0x360
[  912.257165][   T10]      netlink_unicast+0x449/0x710
[  912.257165][   T10]      netlink_sendmsg+0x723/0xbe0
[  912.257165][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  912.257165][   T10]      ___sys_sendmsg+0xee/0x170
[  912.257165][   T10]      __sys_sendmsg+0xcd/0x170
[  912.257165][   T10]      do_syscall_64+0xc6/0x1e0
[  912.257165][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  912.257165][   T10] 
[  912.259436][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  912.259436][   T10]      netdev_get_by_index+0x5e/0x80
[  912.259436][   T10]      fib6_nh_init+0x3d8/0x1580
[  912.259436][   T10]      ip6_route_info_create+0xf18/0x17d0
[  912.259436][   T10]      addrconf_f6i_alloc+0x315/0x560
[  912.259436][   T10]      ipv6_add_addr+0x411/0x2000
[  912.259436][   T10]      inet6_addr_add+0x30e/0xa40
[  912.259436][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  912.259436][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  912.259436][   T10]      netlink_rcv_skb+0x130/0x360
[  912.259436][   T10]      netlink_unicast+0x449/0x710
[  912.259436][   T10]      netlink_sendmsg+0x723/0xbe0
[  912.259436][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  912.259436][   T10]      ___sys_sendmsg+0xee/0x170
[  912.259436][   T10]      __sys_sendmsg+0xcd/0x170
[  912.259436][   T10]      do_syscall_64+0xc6/0x1e0
[  912.259436][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  912.259436][   T10] 
[  912.261646][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  912.261646][   T10]      netdev_get_by_index+0x5e/0x80
[  912.261646][   T10]      fib6_nh_init+0x3d8/0x1580
[  912.261646][   T10]      ip6_route_info_create+0xf18/0x17d0
[  912.261646][   T10]      ip6_route_add+0x1c/0x140
[  912.261646][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  912.261646][   T10]      addrconf_add_dev+0xe2/0x170
[  912.261646][   T10]      inet6_addr_add+0x12f/0xa40
[  912.261646][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  912.261646][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  912.261646][   T10]      netlink_rcv_skb+0x130/0x360
[  912.261646][   T10]      netlink_unicast+0x449/0x710
[  912.261646][   T10]      netlink_sendmsg+0x723/0xbe0
[  912.261646][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  912.261646][   T10]      ___sys_sendmsg+0xee/0x170
[  912.261646][   T10]      __sys_sendmsg+0xcd/0x170
[  912.261646][   T10]      do_syscall_64+0xc6/0x1e0
[  912.261646][   T10] 
[  912.263888][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  912.263888][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  912.263888][   T10]      ipv6_find_idev+0x102/0x170
[  912.263888][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  912.263888][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  912.263888][   T10]      netlink_rcv_skb+0x130/0x360
[  912.263888][   T10]      netlink_unicast+0x449/0x710
[  912.263888][   T10]      netlink_sendmsg+0x723/0xbe0
[  912.263888][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  912.263888][   T10]      ___sys_sendmsg+0xee/0x170
[  912.263888][   T10]      __sys_sendmsg+0xcd/0x170
[  912.263888][   T10]      do_syscall_64+0xc6/0x1e0
[  912.263888][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  912.263888][   T10] 
[  912.265628][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  912.265628][   T10]      neigh_parms_alloc+0x1e5/0x510
[  912.265628][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  912.265628][   T10]      ipv6_find_idev+0x102/0x170
[  912.265628][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  912.265628][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  912.265628][   T10]      netlink_rcv_skb+0x130/0x360
[  912.265628][   T10]      netlink_unicast+0x449/0x710
[  912.265628][   T10]      netlink_sendmsg+0x723/0xbe0
[  912.265628][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  912.265628][   T10]      ___sys_sendmsg+0xee/0x170
[  912.265628][   T10]      __sys_sendmsg+0xcd/0x170
[  912.265628][   T10]      do_syscall_64+0xc6/0x1e0
[  912.265628][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  912.265628][   T10] 
[  922.505844][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  922.506561][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  922.506561][   T10]      dst_init+0x84/0x4a0
[  922.506561][   T10]      dst_alloc+0x97/0x150
[  922.506561][   T10]      ip6_dst_alloc+0x23/0x90
[  922.506561][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  922.506561][   T10]      ip6_pol_route+0x56f/0x840
[  922.506561][   T10]      fib6_rule_lookup+0x456/0x630
[  922.506561][   T10]      ip6_route_input+0x59c/0xa50
[  922.506561][   T10]      ipv6_rcv+0x397/0x810
[  922.506561][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  922.506561][   T10]      process_backlog+0x101/0x620
[  922.506561][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  922.506561][   T10]      net_rx_action+0x495/0xbe0
[  922.506561][   T10]      __do_softirq+0x1b5/0x7f6
[  922.506561][   T10] 
[  922.508451][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  922.508451][   T10]      netdev_get_by_index+0x5e/0x80
[  922.508451][   T10]      fib6_nh_init+0x3d8/0x1580
[  922.508451][   T10]      ip6_route_info_create+0xf18/0x17d0
[  922.508451][   T10]      ip6_route_add+0x1c/0x140
[  922.508451][   T10]      addrconf_prefix_route+0x2a6/0x430
[  922.508451][   T10]      inet6_addr_add+0x4f8/0xa40
[  922.508451][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  922.508451][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  922.508451][   T10]      netlink_rcv_skb+0x130/0x360
[  922.508451][   T10]      netlink_unicast+0x449/0x710
[  922.508451][   T10]      netlink_sendmsg+0x723/0xbe0
[  922.508451][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  922.508451][   T10]      ___sys_sendmsg+0xee/0x170
[  922.508451][   T10]      __sys_sendmsg+0xcd/0x170
[  922.508451][   T10]      do_syscall_64+0xc6/0x1e0
[  922.508451][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  922.508451][   T10] 
[  922.510696][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  922.510696][   T10]      netdev_get_by_index+0x5e/0x80
[  922.510696][   T10]      fib6_nh_init+0x3d8/0x1580
[  922.510696][   T10]      ip6_route_info_create+0xf18/0x17d0
[  922.510696][   T10]      addrconf_f6i_alloc+0x315/0x560
[  922.510696][   T10]      ipv6_add_addr+0x411/0x2000
[  922.510696][   T10]      inet6_addr_add+0x30e/0xa40
[  922.510696][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  922.510696][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  922.510696][   T10]      netlink_rcv_skb+0x130/0x360
[  922.510696][   T10]      netlink_unicast+0x449/0x710
[  922.510696][   T10]      netlink_sendmsg+0x723/0xbe0
[  922.510696][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  922.510696][   T10]      ___sys_sendmsg+0xee/0x170
[  922.510696][   T10]      __sys_sendmsg+0xcd/0x170
[  922.510696][   T10]      do_syscall_64+0xc6/0x1e0
[  922.510696][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  922.510696][   T10] 
[  922.512971][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  922.512971][   T10]      netdev_get_by_index+0x5e/0x80
[  922.512971][   T10]      fib6_nh_init+0x3d8/0x1580
[  922.512971][   T10]      ip6_route_info_create+0xf18/0x17d0
[  922.512971][   T10]      ip6_route_add+0x1c/0x140
[  922.512971][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  922.512971][   T10]      addrconf_add_dev+0xe2/0x170
[  922.512971][   T10]      inet6_addr_add+0x12f/0xa40
[  922.512971][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  922.512971][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  922.512971][   T10]      netlink_rcv_skb+0x130/0x360
[  922.512971][   T10]      netlink_unicast+0x449/0x710
[  922.512971][   T10]      netlink_sendmsg+0x723/0xbe0
[  922.512971][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  922.512971][   T10]      ___sys_sendmsg+0xee/0x170
[  922.512971][   T10]      __sys_sendmsg+0xcd/0x170
[  922.512971][   T10]      do_syscall_64+0xc6/0x1e0
[  922.512971][   T10] 
[  922.515197][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  922.515197][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  922.515197][   T10]      ipv6_find_idev+0x102/0x170
[  922.515197][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  922.515197][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  922.515197][   T10]      netlink_rcv_skb+0x130/0x360
[  922.515197][   T10]      netlink_unicast+0x449/0x710
[  922.515197][   T10]      netlink_sendmsg+0x723/0xbe0
[  922.515197][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  922.515197][   T10]      ___sys_sendmsg+0xee/0x170
[  922.515197][   T10]      __sys_sendmsg+0xcd/0x170
[  922.515197][   T10]      do_syscall_64+0xc6/0x1e0
[  922.515197][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  922.515197][   T10] 
[  922.516873][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  922.516873][   T10]      neigh_parms_alloc+0x1e5/0x510
[  922.516873][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  922.516873][   T10]      ipv6_find_idev+0x102/0x170
[  922.516873][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  922.516873][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  922.516873][   T10]      netlink_rcv_skb+0x130/0x360
[  922.516873][   T10]      netlink_unicast+0x449/0x710
[  922.516873][   T10]      netlink_sendmsg+0x723/0xbe0
[  922.516873][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  922.516873][   T10]      ___sys_sendmsg+0xee/0x170
[  922.516873][   T10]      __sys_sendmsg+0xcd/0x170
[  922.516873][   T10]      do_syscall_64+0xc6/0x1e0
[  922.516873][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  922.516873][   T10] 
[  922.518752][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  922.519018][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  922.519018][   T10]      dst_init+0x84/0x4a0
[  922.519018][   T10]      dst_alloc+0x97/0x150
[  922.519018][   T10]      ip6_dst_alloc+0x23/0x90
[  922.519018][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  922.519018][   T10]      ip6_pol_route+0x56f/0x840
[  922.519018][   T10]      fib6_rule_lookup+0x456/0x630
[  922.519018][   T10]      ip6_route_input+0x59c/0xa50
[  922.519018][   T10]      ipv6_rcv+0x397/0x810
[  922.519018][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  922.519018][   T10]      process_backlog+0x101/0x620
[  922.519018][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  922.519018][   T10]      net_rx_action+0x495/0xbe0
[  922.519018][   T10]      __do_softirq+0x1b5/0x7f6
[  922.519018][   T10] 
[  922.520845][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  922.520845][   T10]      netdev_get_by_index+0x5e/0x80
[  922.520845][   T10]      fib6_nh_init+0x3d8/0x1580
[  922.520845][   T10]      ip6_route_info_create+0xf18/0x17d0
[  922.520845][   T10]      ip6_route_add+0x1c/0x140
[  922.520845][   T10]      addrconf_prefix_route+0x2a6/0x430
[  922.520845][   T10]      inet6_addr_add+0x4f8/0xa40
[  922.520845][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  922.520845][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  922.520845][   T10]      netlink_rcv_skb+0x130/0x360
[  922.520845][   T10]      netlink_unicast+0x449/0x710
[  922.520845][   T10]      netlink_sendmsg+0x723/0xbe0
[  922.520845][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  922.520845][   T10]      ___sys_sendmsg+0xee/0x170
[  922.520845][   T10]      __sys_sendmsg+0xcd/0x170
[  922.520845][   T10]      do_syscall_64+0xc6/0x1e0
[  922.520845][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  922.520845][   T10] 
[  922.523081][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  922.523081][   T10]      netdev_get_by_index+0x5e/0x80
[  922.523081][   T10]      fib6_nh_init+0x3d8/0x1580
[  922.523081][   T10]      ip6_route_info_create+0xf18/0x17d0
[  922.523081][   T10]      addrconf_f6i_alloc+0x315/0x560
[  922.523081][   T10]      ipv6_add_addr+0x411/0x2000
[  922.523081][   T10]      inet6_addr_add+0x30e/0xa40
[  922.523081][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  922.523081][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  922.523081][   T10]      netlink_rcv_skb+0x130/0x360
[  922.523081][   T10]      netlink_unicast+0x449/0x710
[  922.523081][   T10]      netlink_sendmsg+0x723/0xbe0
[  922.523081][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  922.523081][   T10]      ___sys_sendmsg+0xee/0x170
[  922.523081][   T10]      __sys_sendmsg+0xcd/0x170
[  922.523081][   T10]      do_syscall_64+0xc6/0x1e0
[  922.523081][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  922.523081][   T10] 
[  922.525369][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  922.525369][   T10]      netdev_get_by_index+0x5e/0x80
[  922.525369][   T10]      fib6_nh_init+0x3d8/0x1580
[  922.525369][   T10]      ip6_route_info_create+0xf18/0x17d0
[  922.525369][   T10]      ip6_route_add+0x1c/0x140
[  922.525369][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  922.525369][   T10]      addrconf_add_dev+0xe2/0x170
[  922.525369][   T10]      inet6_addr_add+0x12f/0xa40
[  922.525369][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  922.525369][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  922.525369][   T10]      netlink_rcv_skb+0x130/0x360
[  922.525369][   T10]      netlink_unicast+0x449/0x710
[  922.525369][   T10]      netlink_sendmsg+0x723/0xbe0
[  922.525369][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  922.525369][   T10]      ___sys_sendmsg+0xee/0x170
[  922.525369][   T10]      __sys_sendmsg+0xcd/0x170
[  922.525369][   T10]      do_syscall_64+0xc6/0x1e0
[  922.525369][   T10] 
[  922.527556][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  922.527556][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  922.527556][   T10]      ipv6_find_idev+0x102/0x170
[  922.527556][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  922.527556][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  922.527556][   T10]      netlink_rcv_skb+0x130/0x360
[  922.527556][   T10]      netlink_unicast+0x449/0x710
[  922.527556][   T10]      netlink_sendmsg+0x723/0xbe0
[  922.527556][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  922.527556][   T10]      ___sys_sendmsg+0xee/0x170
[  922.527556][   T10]      __sys_sendmsg+0xcd/0x170
[  922.527556][   T10]      do_syscall_64+0xc6/0x1e0
[  922.527556][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  922.527556][   T10] 
[  922.529299][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  922.529299][   T10]      neigh_parms_alloc+0x1e5/0x510
[  922.529299][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  922.529299][   T10]      ipv6_find_idev+0x102/0x170
[  922.529299][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  922.529299][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  922.529299][   T10]      netlink_rcv_skb+0x130/0x360
[  922.529299][   T10]      netlink_unicast+0x449/0x710
[  922.529299][   T10]      netlink_sendmsg+0x723/0xbe0
[  922.529299][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  922.529299][   T10]      ___sys_sendmsg+0xee/0x170
[  922.529299][   T10]      __sys_sendmsg+0xcd/0x170
[  922.529299][   T10]      do_syscall_64+0xc6/0x1e0
[  922.529299][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  922.529299][   T10] 
[  932.769930][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  932.770573][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  932.770573][   T10]      dst_init+0x84/0x4a0
[  932.770573][   T10]      dst_alloc+0x97/0x150
[  932.770573][   T10]      ip6_dst_alloc+0x23/0x90
[  932.770573][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  932.770573][   T10]      ip6_pol_route+0x56f/0x840
[  932.770573][   T10]      fib6_rule_lookup+0x456/0x630
[  932.770573][   T10]      ip6_route_input+0x59c/0xa50
[  932.770573][   T10]      ipv6_rcv+0x397/0x810
[  932.770573][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  932.770573][   T10]      process_backlog+0x101/0x620
[  932.770573][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  932.770573][   T10]      net_rx_action+0x495/0xbe0
[  932.770573][   T10]      __do_softirq+0x1b5/0x7f6
[  932.770573][   T10] 
[  932.772464][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  932.772464][   T10]      netdev_get_by_index+0x5e/0x80
[  932.772464][   T10]      fib6_nh_init+0x3d8/0x1580
[  932.772464][   T10]      ip6_route_info_create+0xf18/0x17d0
[  932.772464][   T10]      ip6_route_add+0x1c/0x140
[  932.772464][   T10]      addrconf_prefix_route+0x2a6/0x430
[  932.772464][   T10]      inet6_addr_add+0x4f8/0xa40
[  932.772464][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  932.772464][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  932.772464][   T10]      netlink_rcv_skb+0x130/0x360
[  932.772464][   T10]      netlink_unicast+0x449/0x710
[  932.772464][   T10]      netlink_sendmsg+0x723/0xbe0
[  932.772464][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  932.772464][   T10]      ___sys_sendmsg+0xee/0x170
[  932.772464][   T10]      __sys_sendmsg+0xcd/0x170
[  932.772464][   T10]      do_syscall_64+0xc6/0x1e0
[  932.772464][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  932.772464][   T10] 
[  932.774729][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  932.774729][   T10]      netdev_get_by_index+0x5e/0x80
[  932.774729][   T10]      fib6_nh_init+0x3d8/0x1580
[  932.774729][   T10]      ip6_route_info_create+0xf18/0x17d0
[  932.774729][   T10]      addrconf_f6i_alloc+0x315/0x560
[  932.774729][   T10]      ipv6_add_addr+0x411/0x2000
[  932.774729][   T10]      inet6_addr_add+0x30e/0xa40
[  932.774729][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  932.774729][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  932.774729][   T10]      netlink_rcv_skb+0x130/0x360
[  932.774729][   T10]      netlink_unicast+0x449/0x710
[  932.774729][   T10]      netlink_sendmsg+0x723/0xbe0
[  932.774729][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  932.774729][   T10]      ___sys_sendmsg+0xee/0x170
[  932.774729][   T10]      __sys_sendmsg+0xcd/0x170
[  932.774729][   T10]      do_syscall_64+0xc6/0x1e0
[  932.774729][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  932.774729][   T10] 
[  932.777028][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  932.777028][   T10]      netdev_get_by_index+0x5e/0x80
[  932.777028][   T10]      fib6_nh_init+0x3d8/0x1580
[  932.777028][   T10]      ip6_route_info_create+0xf18/0x17d0
[  932.777028][   T10]      ip6_route_add+0x1c/0x140
[  932.777028][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  932.777028][   T10]      addrconf_add_dev+0xe2/0x170
[  932.777028][   T10]      inet6_addr_add+0x12f/0xa40
[  932.777028][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  932.777028][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  932.777028][   T10]      netlink_rcv_skb+0x130/0x360
[  932.777028][   T10]      netlink_unicast+0x449/0x710
[  932.777028][   T10]      netlink_sendmsg+0x723/0xbe0
[  932.777028][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  932.777028][   T10]      ___sys_sendmsg+0xee/0x170
[  932.777028][   T10]      __sys_sendmsg+0xcd/0x170
[  932.777028][   T10]      do_syscall_64+0xc6/0x1e0
[  932.777028][   T10] 
[  932.779250][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  932.779250][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  932.779250][   T10]      ipv6_find_idev+0x102/0x170
[  932.779250][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  932.779250][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  932.779250][   T10]      netlink_rcv_skb+0x130/0x360
[  932.779250][   T10]      netlink_unicast+0x449/0x710
[  932.779250][   T10]      netlink_sendmsg+0x723/0xbe0
[  932.779250][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  932.779250][   T10]      ___sys_sendmsg+0xee/0x170
[  932.779250][   T10]      __sys_sendmsg+0xcd/0x170
[  932.779250][   T10]      do_syscall_64+0xc6/0x1e0
[  932.779250][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  932.779250][   T10] 
[  932.780948][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  932.780948][   T10]      neigh_parms_alloc+0x1e5/0x510
[  932.780948][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  932.780948][   T10]      ipv6_find_idev+0x102/0x170
[  932.780948][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  932.780948][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  932.780948][   T10]      netlink_rcv_skb+0x130/0x360
[  932.780948][   T10]      netlink_unicast+0x449/0x710
[  932.780948][   T10]      netlink_sendmsg+0x723/0xbe0
[  932.780948][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  932.780948][   T10]      ___sys_sendmsg+0xee/0x170
[  932.780948][   T10]      __sys_sendmsg+0xcd/0x170
[  932.780948][   T10]      do_syscall_64+0xc6/0x1e0
[  932.780948][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  932.780948][   T10] 
[  932.782842][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  932.783127][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  932.783127][   T10]      dst_init+0x84/0x4a0
[  932.783127][   T10]      dst_alloc+0x97/0x150
[  932.783127][   T10]      ip6_dst_alloc+0x23/0x90
[  932.783127][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  932.783127][   T10]      ip6_pol_route+0x56f/0x840
[  932.783127][   T10]      fib6_rule_lookup+0x456/0x630
[  932.783127][   T10]      ip6_route_input+0x59c/0xa50
[  932.783127][   T10]      ipv6_rcv+0x397/0x810
[  932.783127][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  932.783127][   T10]      process_backlog+0x101/0x620
[  932.783127][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  932.783127][   T10]      net_rx_action+0x495/0xbe0
[  932.783127][   T10]      __do_softirq+0x1b5/0x7f6
[  932.783127][   T10] 
[  932.784959][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  932.784959][   T10]      netdev_get_by_index+0x5e/0x80
[  932.784959][   T10]      fib6_nh_init+0x3d8/0x1580
[  932.784959][   T10]      ip6_route_info_create+0xf18/0x17d0
[  932.784959][   T10]      ip6_route_add+0x1c/0x140
[  932.784959][   T10]      addrconf_prefix_route+0x2a6/0x430
[  932.784959][   T10]      inet6_addr_add+0x4f8/0xa40
[  932.784959][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  932.784959][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  932.784959][   T10]      netlink_rcv_skb+0x130/0x360
[  932.784959][   T10]      netlink_unicast+0x449/0x710
[  932.784959][   T10]      netlink_sendmsg+0x723/0xbe0
[  932.784959][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  932.784959][   T10]      ___sys_sendmsg+0xee/0x170
[  932.784959][   T10]      __sys_sendmsg+0xcd/0x170
[  932.784959][   T10]      do_syscall_64+0xc6/0x1e0
[  932.784959][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  932.784959][   T10] 
[  932.787180][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  932.787180][   T10]      netdev_get_by_index+0x5e/0x80
[  932.787180][   T10]      fib6_nh_init+0x3d8/0x1580
[  932.787180][   T10]      ip6_route_info_create+0xf18/0x17d0
[  932.787180][   T10]      addrconf_f6i_alloc+0x315/0x560
[  932.787180][   T10]      ipv6_add_addr+0x411/0x2000
[  932.787180][   T10]      inet6_addr_add+0x30e/0xa40
[  932.787180][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  932.787180][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  932.787180][   T10]      netlink_rcv_skb+0x130/0x360
[  932.787180][   T10]      netlink_unicast+0x449/0x710
[  932.787180][   T10]      netlink_sendmsg+0x723/0xbe0
[  932.787180][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  932.787180][   T10]      ___sys_sendmsg+0xee/0x170
[  932.787180][   T10]      __sys_sendmsg+0xcd/0x170
[  932.787180][   T10]      do_syscall_64+0xc6/0x1e0
[  932.787180][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  932.787180][   T10] 
[  932.789442][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  932.789442][   T10]      netdev_get_by_index+0x5e/0x80
[  932.789442][   T10]      fib6_nh_init+0x3d8/0x1580
[  932.789442][   T10]      ip6_route_info_create+0xf18/0x17d0
[  932.789442][   T10]      ip6_route_add+0x1c/0x140
[  932.789442][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  932.789442][   T10]      addrconf_add_dev+0xe2/0x170
[  932.789442][   T10]      inet6_addr_add+0x12f/0xa40
[  932.789442][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  932.789442][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  932.789442][   T10]      netlink_rcv_skb+0x130/0x360
[  932.789442][   T10]      netlink_unicast+0x449/0x710
[  932.789442][   T10]      netlink_sendmsg+0x723/0xbe0
[  932.789442][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  932.789442][   T10]      ___sys_sendmsg+0xee/0x170
[  932.789442][   T10]      __sys_sendmsg+0xcd/0x170
[  932.789442][   T10]      do_syscall_64+0xc6/0x1e0
[  932.789442][   T10] 
[  932.791642][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  932.791642][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  932.791642][   T10]      ipv6_find_idev+0x102/0x170
[  932.791642][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  932.791642][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  932.791642][   T10]      netlink_rcv_skb+0x130/0x360
[  932.791642][   T10]      netlink_unicast+0x449/0x710
[  932.791642][   T10]      netlink_sendmsg+0x723/0xbe0
[  932.791642][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  932.791642][   T10]      ___sys_sendmsg+0xee/0x170
[  932.791642][   T10]      __sys_sendmsg+0xcd/0x170
[  932.791642][   T10]      do_syscall_64+0xc6/0x1e0
[  932.791642][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  932.791642][   T10] 
[  932.793364][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  932.793364][   T10]      neigh_parms_alloc+0x1e5/0x510
[  932.793364][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  932.793364][   T10]      ipv6_find_idev+0x102/0x170
[  932.793364][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  932.793364][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  932.793364][   T10]      netlink_rcv_skb+0x130/0x360
[  932.793364][   T10]      netlink_unicast+0x449/0x710
[  932.793364][   T10]      netlink_sendmsg+0x723/0xbe0
[  932.793364][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  932.793364][   T10]      ___sys_sendmsg+0xee/0x170
[  932.793364][   T10]      __sys_sendmsg+0xcd/0x170
[  932.793364][   T10]      do_syscall_64+0xc6/0x1e0
[  932.793364][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  932.793364][   T10] 
[  943.033847][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  943.034686][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  943.034686][   T10]      dst_init+0x84/0x4a0
[  943.034686][   T10]      dst_alloc+0x97/0x150
[  943.034686][   T10]      ip6_dst_alloc+0x23/0x90
[  943.034686][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  943.034686][   T10]      ip6_pol_route+0x56f/0x840
[  943.034686][   T10]      fib6_rule_lookup+0x456/0x630
[  943.034686][   T10]      ip6_route_input+0x59c/0xa50
[  943.034686][   T10]      ipv6_rcv+0x397/0x810
[  943.034686][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  943.034686][   T10]      process_backlog+0x101/0x620
[  943.034686][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  943.034686][   T10]      net_rx_action+0x495/0xbe0
[  943.034686][   T10]      __do_softirq+0x1b5/0x7f6
[  943.034686][   T10] 
[  943.036392][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  943.036392][   T10]      netdev_get_by_index+0x5e/0x80
[  943.036392][   T10]      fib6_nh_init+0x3d8/0x1580
[  943.036392][   T10]      ip6_route_info_create+0xf18/0x17d0
[  943.036392][   T10]      ip6_route_add+0x1c/0x140
[  943.036392][   T10]      addrconf_prefix_route+0x2a6/0x430
[  943.036392][   T10]      inet6_addr_add+0x4f8/0xa40
[  943.036392][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  943.036392][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  943.036392][   T10]      netlink_rcv_skb+0x130/0x360
[  943.036392][   T10]      netlink_unicast+0x449/0x710
[  943.036392][   T10]      netlink_sendmsg+0x723/0xbe0
[  943.036392][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  943.036392][   T10]      ___sys_sendmsg+0xee/0x170
[  943.036392][   T10]      __sys_sendmsg+0xcd/0x170
[  943.036392][   T10]      do_syscall_64+0xc6/0x1e0
[  943.036392][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  943.036392][   T10] 
[  943.038436][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  943.038436][   T10]      netdev_get_by_index+0x5e/0x80
[  943.038436][   T10]      fib6_nh_init+0x3d8/0x1580
[  943.038436][   T10]      ip6_route_info_create+0xf18/0x17d0
[  943.038436][   T10]      addrconf_f6i_alloc+0x315/0x560
[  943.038436][   T10]      ipv6_add_addr+0x411/0x2000
[  943.038436][   T10]      inet6_addr_add+0x30e/0xa40
[  943.038436][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  943.038436][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  943.038436][   T10]      netlink_rcv_skb+0x130/0x360
[  943.038436][   T10]      netlink_unicast+0x449/0x710
[  943.038436][   T10]      netlink_sendmsg+0x723/0xbe0
[  943.038436][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  943.038436][   T10]      ___sys_sendmsg+0xee/0x170
[  943.038436][   T10]      __sys_sendmsg+0xcd/0x170
[  943.038436][   T10]      do_syscall_64+0xc6/0x1e0
[  943.038436][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  943.038436][   T10] 
[  943.040431][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  943.040431][   T10]      netdev_get_by_index+0x5e/0x80
[  943.040431][   T10]      fib6_nh_init+0x3d8/0x1580
[  943.040431][   T10]      ip6_route_info_create+0xf18/0x17d0
[  943.040431][   T10]      ip6_route_add+0x1c/0x140
[  943.040431][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  943.040431][   T10]      addrconf_add_dev+0xe2/0x170
[  943.040431][   T10]      inet6_addr_add+0x12f/0xa40
[  943.040431][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  943.040431][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  943.040431][   T10]      netlink_rcv_skb+0x130/0x360
[  943.040431][   T10]      netlink_unicast+0x449/0x710
[  943.040431][   T10]      netlink_sendmsg+0x723/0xbe0
[  943.040431][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  943.040431][   T10]      ___sys_sendmsg+0xee/0x170
[  943.040431][   T10]      __sys_sendmsg+0xcd/0x170
[  943.040431][   T10]      do_syscall_64+0xc6/0x1e0
[  943.040431][   T10] 
[  943.042403][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  943.042403][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  943.042403][   T10]      ipv6_find_idev+0x102/0x170
[  943.042403][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  943.042403][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  943.042403][   T10]      netlink_rcv_skb+0x130/0x360
[  943.042403][   T10]      netlink_unicast+0x449/0x710
[  943.042403][   T10]      netlink_sendmsg+0x723/0xbe0
[  943.042403][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  943.042403][   T10]      ___sys_sendmsg+0xee/0x170
[  943.042403][   T10]      __sys_sendmsg+0xcd/0x170
[  943.042403][   T10]      do_syscall_64+0xc6/0x1e0
[  943.042403][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  943.042403][   T10] 
[  943.043936][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  943.043936][   T10]      neigh_parms_alloc+0x1e5/0x510
[  943.043936][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  943.043936][   T10]      ipv6_find_idev+0x102/0x170
[  943.043936][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  943.043936][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  943.043936][   T10]      netlink_rcv_skb+0x130/0x360
[  943.043936][   T10]      netlink_unicast+0x449/0x710
[  943.043936][   T10]      netlink_sendmsg+0x723/0xbe0
[  943.043936][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  943.043936][   T10]      ___sys_sendmsg+0xee/0x170
[  943.043936][   T10]      __sys_sendmsg+0xcd/0x170
[  943.043936][   T10]      do_syscall_64+0xc6/0x1e0
[  943.043936][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  943.043936][   T10] 
[  943.045617][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  943.045876][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  943.045876][   T10]      dst_init+0x84/0x4a0
[  943.045876][   T10]      dst_alloc+0x97/0x150
[  943.045876][   T10]      ip6_dst_alloc+0x23/0x90
[  943.045876][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  943.045876][   T10]      ip6_pol_route+0x56f/0x840
[  943.045876][   T10]      fib6_rule_lookup+0x456/0x630
[  943.045876][   T10]      ip6_route_input+0x59c/0xa50
[  943.045876][   T10]      ipv6_rcv+0x397/0x810
[  943.045876][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  943.045876][   T10]      process_backlog+0x101/0x620
[  943.045876][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  943.045876][   T10]      net_rx_action+0x495/0xbe0
[  943.045876][   T10]      __do_softirq+0x1b5/0x7f6
[  943.045876][   T10] 
[  943.047509][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  943.047509][   T10]      netdev_get_by_index+0x5e/0x80
[  943.047509][   T10]      fib6_nh_init+0x3d8/0x1580
[  943.047509][   T10]      ip6_route_info_create+0xf18/0x17d0
[  943.047509][   T10]      ip6_route_add+0x1c/0x140
[  943.047509][   T10]      addrconf_prefix_route+0x2a6/0x430
[  943.047509][   T10]      inet6_addr_add+0x4f8/0xa40
[  943.047509][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  943.047509][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  943.047509][   T10]      netlink_rcv_skb+0x130/0x360
[  943.047509][   T10]      netlink_unicast+0x449/0x710
[  943.047509][   T10]      netlink_sendmsg+0x723/0xbe0
[  943.047509][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  943.047509][   T10]      ___sys_sendmsg+0xee/0x170
[  943.047509][   T10]      __sys_sendmsg+0xcd/0x170
[  943.047509][   T10]      do_syscall_64+0xc6/0x1e0
[  943.047509][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  943.047509][   T10] 
[  943.049516][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  943.049516][   T10]      netdev_get_by_index+0x5e/0x80
[  943.049516][   T10]      fib6_nh_init+0x3d8/0x1580
[  943.049516][   T10]      ip6_route_info_create+0xf18/0x17d0
[  943.049516][   T10]      addrconf_f6i_alloc+0x315/0x560
[  943.049516][   T10]      ipv6_add_addr+0x411/0x2000
[  943.049516][   T10]      inet6_addr_add+0x30e/0xa40
[  943.049516][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  943.049516][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  943.049516][   T10]      netlink_rcv_skb+0x130/0x360
[  943.049516][   T10]      netlink_unicast+0x449/0x710
[  943.049516][   T10]      netlink_sendmsg+0x723/0xbe0
[  943.049516][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  943.049516][   T10]      ___sys_sendmsg+0xee/0x170
[  943.049516][   T10]      __sys_sendmsg+0xcd/0x170
[  943.049516][   T10]      do_syscall_64+0xc6/0x1e0
[  943.049516][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  943.049516][   T10] 
[  943.051509][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  943.051509][   T10]      netdev_get_by_index+0x5e/0x80
[  943.051509][   T10]      fib6_nh_init+0x3d8/0x1580
[  943.051509][   T10]      ip6_route_info_create+0xf18/0x17d0
[  943.051509][   T10]      ip6_route_add+0x1c/0x140
[  943.051509][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  943.051509][   T10]      addrconf_add_dev+0xe2/0x170
[  943.051509][   T10]      inet6_addr_add+0x12f/0xa40
[  943.051509][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  943.051509][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  943.051509][   T10]      netlink_rcv_skb+0x130/0x360
[  943.051509][   T10]      netlink_unicast+0x449/0x710
[  943.051509][   T10]      netlink_sendmsg+0x723/0xbe0
[  943.051509][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  943.051509][   T10]      ___sys_sendmsg+0xee/0x170
[  943.051509][   T10]      __sys_sendmsg+0xcd/0x170
[  943.051509][   T10]      do_syscall_64+0xc6/0x1e0
[  943.051509][   T10] 
[  943.053471][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  943.053471][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  943.053471][   T10]      ipv6_find_idev+0x102/0x170
[  943.053471][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  943.053471][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  943.053471][   T10]      netlink_rcv_skb+0x130/0x360
[  943.053471][   T10]      netlink_unicast+0x449/0x710
[  943.053471][   T10]      netlink_sendmsg+0x723/0xbe0
[  943.053471][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  943.053471][   T10]      ___sys_sendmsg+0xee/0x170
[  943.053471][   T10]      __sys_sendmsg+0xcd/0x170
[  943.053471][   T10]      do_syscall_64+0xc6/0x1e0
[  943.053471][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  943.053471][   T10] 
[  943.055102][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  943.055102][   T10]      neigh_parms_alloc+0x1e5/0x510
[  943.055102][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  943.055102][   T10]      ipv6_find_idev+0x102/0x170
[  943.055102][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  943.055102][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  943.055102][   T10]      netlink_rcv_skb+0x130/0x360
[  943.055102][   T10]      netlink_unicast+0x449/0x710
[  943.055102][   T10]      netlink_sendmsg+0x723/0xbe0
[  943.055102][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  943.055102][   T10]      ___sys_sendmsg+0xee/0x170
[  943.055102][   T10]      __sys_sendmsg+0xcd/0x170
[  943.055102][   T10]      do_syscall_64+0xc6/0x1e0
[  943.055102][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  943.055102][   T10] 
[  953.297838][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  953.298560][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  953.298560][   T10]      dst_init+0x84/0x4a0
[  953.298560][   T10]      dst_alloc+0x97/0x150
[  953.298560][   T10]      ip6_dst_alloc+0x23/0x90
[  953.298560][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  953.298560][   T10]      ip6_pol_route+0x56f/0x840
[  953.298560][   T10]      fib6_rule_lookup+0x456/0x630
[  953.298560][   T10]      ip6_route_input+0x59c/0xa50
[  953.298560][   T10]      ipv6_rcv+0x397/0x810
[  953.298560][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  953.298560][   T10]      process_backlog+0x101/0x620
[  953.298560][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  953.298560][   T10]      net_rx_action+0x495/0xbe0
[  953.298560][   T10]      __do_softirq+0x1b5/0x7f6
[  953.298560][   T10] 
[  953.300254][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  953.300254][   T10]      netdev_get_by_index+0x5e/0x80
[  953.300254][   T10]      fib6_nh_init+0x3d8/0x1580
[  953.300254][   T10]      ip6_route_info_create+0xf18/0x17d0
[  953.300254][   T10]      ip6_route_add+0x1c/0x140
[  953.300254][   T10]      addrconf_prefix_route+0x2a6/0x430
[  953.300254][   T10]      inet6_addr_add+0x4f8/0xa40
[  953.300254][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  953.300254][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  953.300254][   T10]      netlink_rcv_skb+0x130/0x360
[  953.300254][   T10]      netlink_unicast+0x449/0x710
[  953.300254][   T10]      netlink_sendmsg+0x723/0xbe0
[  953.300254][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  953.300254][   T10]      ___sys_sendmsg+0xee/0x170
[  953.300254][   T10]      __sys_sendmsg+0xcd/0x170
[  953.300254][   T10]      do_syscall_64+0xc6/0x1e0
[  953.300254][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  953.300254][   T10] 
[  953.302304][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  953.302304][   T10]      netdev_get_by_index+0x5e/0x80
[  953.302304][   T10]      fib6_nh_init+0x3d8/0x1580
[  953.302304][   T10]      ip6_route_info_create+0xf18/0x17d0
[  953.302304][   T10]      addrconf_f6i_alloc+0x315/0x560
[  953.302304][   T10]      ipv6_add_addr+0x411/0x2000
[  953.302304][   T10]      inet6_addr_add+0x30e/0xa40
[  953.302304][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  953.302304][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  953.302304][   T10]      netlink_rcv_skb+0x130/0x360
[  953.302304][   T10]      netlink_unicast+0x449/0x710
[  953.302304][   T10]      netlink_sendmsg+0x723/0xbe0
[  953.302304][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  953.302304][   T10]      ___sys_sendmsg+0xee/0x170
[  953.302304][   T10]      __sys_sendmsg+0xcd/0x170
[  953.302304][   T10]      do_syscall_64+0xc6/0x1e0
[  953.302304][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  953.302304][   T10] 
[  953.304374][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  953.304374][   T10]      netdev_get_by_index+0x5e/0x80
[  953.304374][   T10]      fib6_nh_init+0x3d8/0x1580
[  953.304374][   T10]      ip6_route_info_create+0xf18/0x17d0
[  953.304374][   T10]      ip6_route_add+0x1c/0x140
[  953.304374][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  953.304374][   T10]      addrconf_add_dev+0xe2/0x170
[  953.304374][   T10]      inet6_addr_add+0x12f/0xa40
[  953.304374][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  953.304374][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  953.304374][   T10]      netlink_rcv_skb+0x130/0x360
[  953.304374][   T10]      netlink_unicast+0x449/0x710
[  953.304374][   T10]      netlink_sendmsg+0x723/0xbe0
[  953.304374][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  953.304374][   T10]      ___sys_sendmsg+0xee/0x170
[  953.304374][   T10]      __sys_sendmsg+0xcd/0x170
[  953.304374][   T10]      do_syscall_64+0xc6/0x1e0
[  953.304374][   T10] 
[  953.306383][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  953.306383][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  953.306383][   T10]      ipv6_find_idev+0x102/0x170
[  953.306383][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  953.306383][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  953.306383][   T10]      netlink_rcv_skb+0x130/0x360
[  953.306383][   T10]      netlink_unicast+0x449/0x710
[  953.306383][   T10]      netlink_sendmsg+0x723/0xbe0
[  953.306383][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  953.306383][   T10]      ___sys_sendmsg+0xee/0x170
[  953.306383][   T10]      __sys_sendmsg+0xcd/0x170
[  953.306383][   T10]      do_syscall_64+0xc6/0x1e0
[  953.306383][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  953.306383][   T10] 
[  953.307957][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  953.307957][   T10]      neigh_parms_alloc+0x1e5/0x510
[  953.307957][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  953.307957][   T10]      ipv6_find_idev+0x102/0x170
[  953.307957][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  953.307957][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  953.307957][   T10]      netlink_rcv_skb+0x130/0x360
[  953.307957][   T10]      netlink_unicast+0x449/0x710
[  953.307957][   T10]      netlink_sendmsg+0x723/0xbe0
[  953.307957][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  953.307957][   T10]      ___sys_sendmsg+0xee/0x170
[  953.307957][   T10]      __sys_sendmsg+0xcd/0x170
[  953.307957][   T10]      do_syscall_64+0xc6/0x1e0
[  953.307957][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  953.307957][   T10] 
[  953.309645][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  953.309905][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  953.309905][   T10]      dst_init+0x84/0x4a0
[  953.309905][   T10]      dst_alloc+0x97/0x150
[  953.309905][   T10]      ip6_dst_alloc+0x23/0x90
[  953.309905][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  953.309905][   T10]      ip6_pol_route+0x56f/0x840
[  953.309905][   T10]      fib6_rule_lookup+0x456/0x630
[  953.309905][   T10]      ip6_route_input+0x59c/0xa50
[  953.309905][   T10]      ipv6_rcv+0x397/0x810
[  953.309905][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  953.309905][   T10]      process_backlog+0x101/0x620
[  953.309905][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  953.309905][   T10]      net_rx_action+0x495/0xbe0
[  953.309905][   T10]      __do_softirq+0x1b5/0x7f6
[  953.309905][   T10] 
[  953.311557][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  953.311557][   T10]      netdev_get_by_index+0x5e/0x80
[  953.311557][   T10]      fib6_nh_init+0x3d8/0x1580
[  953.311557][   T10]      ip6_route_info_create+0xf18/0x17d0
[  953.311557][   T10]      ip6_route_add+0x1c/0x140
[  953.311557][   T10]      addrconf_prefix_route+0x2a6/0x430
[  953.311557][   T10]      inet6_addr_add+0x4f8/0xa40
[  953.311557][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  953.311557][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  953.311557][   T10]      netlink_rcv_skb+0x130/0x360
[  953.311557][   T10]      netlink_unicast+0x449/0x710
[  953.311557][   T10]      netlink_sendmsg+0x723/0xbe0
[  953.311557][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  953.311557][   T10]      ___sys_sendmsg+0xee/0x170
[  953.311557][   T10]      __sys_sendmsg+0xcd/0x170
[  953.311557][   T10]      do_syscall_64+0xc6/0x1e0
[  953.311557][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  953.311557][   T10] 
[  953.313567][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  953.313567][   T10]      netdev_get_by_index+0x5e/0x80
[  953.313567][   T10]      fib6_nh_init+0x3d8/0x1580
[  953.313567][   T10]      ip6_route_info_create+0xf18/0x17d0
[  953.313567][   T10]      addrconf_f6i_alloc+0x315/0x560
[  953.313567][   T10]      ipv6_add_addr+0x411/0x2000
[  953.313567][   T10]      inet6_addr_add+0x30e/0xa40
[  953.313567][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  953.313567][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  953.313567][   T10]      netlink_rcv_skb+0x130/0x360
[  953.313567][   T10]      netlink_unicast+0x449/0x710
[  953.313567][   T10]      netlink_sendmsg+0x723/0xbe0
[  953.313567][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  953.313567][   T10]      ___sys_sendmsg+0xee/0x170
[  953.313567][   T10]      __sys_sendmsg+0xcd/0x170
[  953.313567][   T10]      do_syscall_64+0xc6/0x1e0
[  953.313567][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  953.313567][   T10] 
[  953.315573][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  953.315573][   T10]      netdev_get_by_index+0x5e/0x80
[  953.315573][   T10]      fib6_nh_init+0x3d8/0x1580
[  953.315573][   T10]      ip6_route_info_create+0xf18/0x17d0
[  953.315573][   T10]      ip6_route_add+0x1c/0x140
[  953.315573][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  953.315573][   T10]      addrconf_add_dev+0xe2/0x170
[  953.315573][   T10]      inet6_addr_add+0x12f/0xa40
[  953.315573][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  953.315573][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  953.315573][   T10]      netlink_rcv_skb+0x130/0x360
[  953.315573][   T10]      netlink_unicast+0x449/0x710
[  953.315573][   T10]      netlink_sendmsg+0x723/0xbe0
[  953.315573][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  953.315573][   T10]      ___sys_sendmsg+0xee/0x170
[  953.315573][   T10]      __sys_sendmsg+0xcd/0x170
[  953.315573][   T10]      do_syscall_64+0xc6/0x1e0
[  953.315573][   T10] 
[  953.317554][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  953.317554][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  953.317554][   T10]      ipv6_find_idev+0x102/0x170
[  953.317554][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  953.317554][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  953.317554][   T10]      netlink_rcv_skb+0x130/0x360
[  953.317554][   T10]      netlink_unicast+0x449/0x710
[  953.317554][   T10]      netlink_sendmsg+0x723/0xbe0
[  953.317554][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  953.317554][   T10]      ___sys_sendmsg+0xee/0x170
[  953.317554][   T10]      __sys_sendmsg+0xcd/0x170
[  953.317554][   T10]      do_syscall_64+0xc6/0x1e0
[  953.317554][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  953.317554][   T10] 
[  953.319110][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  953.319110][   T10]      neigh_parms_alloc+0x1e5/0x510
[  953.319110][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  953.319110][   T10]      ipv6_find_idev+0x102/0x170
[  953.319110][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  953.319110][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  953.319110][   T10]      netlink_rcv_skb+0x130/0x360
[  953.319110][   T10]      netlink_unicast+0x449/0x710
[  953.319110][   T10]      netlink_sendmsg+0x723/0xbe0
[  953.319110][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  953.319110][   T10]      ___sys_sendmsg+0xee/0x170
[  953.319110][   T10]      __sys_sendmsg+0xcd/0x170
[  953.319110][   T10]      do_syscall_64+0xc6/0x1e0
[  953.319110][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  953.319110][   T10] 
[  963.353923][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  963.354509][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  963.354509][   T10]      dst_init+0x84/0x4a0
[  963.354509][   T10]      dst_alloc+0x97/0x150
[  963.354509][   T10]      ip6_dst_alloc+0x23/0x90
[  963.354509][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  963.354509][   T10]      ip6_pol_route+0x56f/0x840
[  963.354509][   T10]      fib6_rule_lookup+0x456/0x630
[  963.354509][   T10]      ip6_route_input+0x59c/0xa50
[  963.354509][   T10]      ipv6_rcv+0x397/0x810
[  963.354509][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  963.354509][   T10]      process_backlog+0x101/0x620
[  963.354509][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  963.354509][   T10]      net_rx_action+0x495/0xbe0
[  963.354509][   T10]      __do_softirq+0x1b5/0x7f6
[  963.354509][   T10] 
[  963.356187][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  963.356187][   T10]      netdev_get_by_index+0x5e/0x80
[  963.356187][   T10]      fib6_nh_init+0x3d8/0x1580
[  963.356187][   T10]      ip6_route_info_create+0xf18/0x17d0
[  963.356187][   T10]      ip6_route_add+0x1c/0x140
[  963.356187][   T10]      addrconf_prefix_route+0x2a6/0x430
[  963.356187][   T10]      inet6_addr_add+0x4f8/0xa40
[  963.356187][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  963.356187][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  963.356187][   T10]      netlink_rcv_skb+0x130/0x360
[  963.356187][   T10]      netlink_unicast+0x449/0x710
[  963.356187][   T10]      netlink_sendmsg+0x723/0xbe0
[  963.356187][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  963.356187][   T10]      ___sys_sendmsg+0xee/0x170
[  963.356187][   T10]      __sys_sendmsg+0xcd/0x170
[  963.356187][   T10]      do_syscall_64+0xc6/0x1e0
[  963.356187][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  963.356187][   T10] 
[  963.358249][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  963.358249][   T10]      netdev_get_by_index+0x5e/0x80
[  963.358249][   T10]      fib6_nh_init+0x3d8/0x1580
[  963.358249][   T10]      ip6_route_info_create+0xf18/0x17d0
[  963.358249][   T10]      addrconf_f6i_alloc+0x315/0x560
[  963.358249][   T10]      ipv6_add_addr+0x411/0x2000
[  963.358249][   T10]      inet6_addr_add+0x30e/0xa40
[  963.358249][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  963.358249][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  963.358249][   T10]      netlink_rcv_skb+0x130/0x360
[  963.358249][   T10]      netlink_unicast+0x449/0x710
[  963.358249][   T10]      netlink_sendmsg+0x723/0xbe0
[  963.358249][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  963.358249][   T10]      ___sys_sendmsg+0xee/0x170
[  963.358249][   T10]      __sys_sendmsg+0xcd/0x170
[  963.358249][   T10]      do_syscall_64+0xc6/0x1e0
[  963.358249][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  963.358249][   T10] 
[  963.360841][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  963.360841][   T10]      netdev_get_by_index+0x5e/0x80
[  963.360841][   T10]      fib6_nh_init+0x3d8/0x1580
[  963.360841][   T10]      ip6_route_info_create+0xf18/0x17d0
[  963.360841][   T10]      ip6_route_add+0x1c/0x140
[  963.360841][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  963.360841][   T10]      addrconf_add_dev+0xe2/0x170
[  963.360841][   T10]      inet6_addr_add+0x12f/0xa40
[  963.360841][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  963.360841][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  963.360841][   T10]      netlink_rcv_skb+0x130/0x360
[  963.360841][   T10]      netlink_unicast+0x449/0x710
[  963.360841][   T10]      netlink_sendmsg+0x723/0xbe0
[  963.360841][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  963.360841][   T10]      ___sys_sendmsg+0xee/0x170
[  963.360841][   T10]      __sys_sendmsg+0xcd/0x170
[  963.360841][   T10]      do_syscall_64+0xc6/0x1e0
[  963.360841][   T10] 
[  963.362848][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  963.362848][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  963.362848][   T10]      ipv6_find_idev+0x102/0x170
[  963.362848][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  963.362848][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  963.362848][   T10]      netlink_rcv_skb+0x130/0x360
[  963.362848][   T10]      netlink_unicast+0x449/0x710
[  963.362848][   T10]      netlink_sendmsg+0x723/0xbe0
[  963.362848][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  963.362848][   T10]      ___sys_sendmsg+0xee/0x170
[  963.362848][   T10]      __sys_sendmsg+0xcd/0x170
[  963.362848][   T10]      do_syscall_64+0xc6/0x1e0
[  963.362848][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  963.362848][   T10] 
[  963.364456][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  963.364456][   T10]      neigh_parms_alloc+0x1e5/0x510
[  963.364456][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  963.364456][   T10]      ipv6_find_idev+0x102/0x170
[  963.364456][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  963.364456][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  963.364456][   T10]      netlink_rcv_skb+0x130/0x360
[  963.364456][   T10]      netlink_unicast+0x449/0x710
[  963.364456][   T10]      netlink_sendmsg+0x723/0xbe0
[  963.364456][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  963.364456][   T10]      ___sys_sendmsg+0xee/0x170
[  963.364456][   T10]      __sys_sendmsg+0xcd/0x170
[  963.364456][   T10]      do_syscall_64+0xc6/0x1e0
[  963.364456][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  963.364456][   T10] 
[  963.366170][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  963.366832][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  963.366832][   T10]      dst_init+0x84/0x4a0
[  963.366832][   T10]      dst_alloc+0x97/0x150
[  963.366832][   T10]      ip6_dst_alloc+0x23/0x90
[  963.366832][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  963.366832][   T10]      ip6_pol_route+0x56f/0x840
[  963.366832][   T10]      fib6_rule_lookup+0x456/0x630
[  963.366832][   T10]      ip6_route_input+0x59c/0xa50
[  963.366832][   T10]      ipv6_rcv+0x397/0x810
[  963.366832][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  963.366832][   T10]      process_backlog+0x101/0x620
[  963.366832][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  963.366832][   T10]      net_rx_action+0x495/0xbe0
[  963.366832][   T10]      __do_softirq+0x1b5/0x7f6
[  963.366832][   T10] 
[  963.368489][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  963.368489][   T10]      netdev_get_by_index+0x5e/0x80
[  963.368489][   T10]      fib6_nh_init+0x3d8/0x1580
[  963.368489][   T10]      ip6_route_info_create+0xf18/0x17d0
[  963.368489][   T10]      ip6_route_add+0x1c/0x140
[  963.368489][   T10]      addrconf_prefix_route+0x2a6/0x430
[  963.368489][   T10]      inet6_addr_add+0x4f8/0xa40
[  963.368489][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  963.368489][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  963.368489][   T10]      netlink_rcv_skb+0x130/0x360
[  963.368489][   T10]      netlink_unicast+0x449/0x710
[  963.368489][   T10]      netlink_sendmsg+0x723/0xbe0
[  963.368489][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  963.368489][   T10]      ___sys_sendmsg+0xee/0x170
[  963.368489][   T10]      __sys_sendmsg+0xcd/0x170
[  963.368489][   T10]      do_syscall_64+0xc6/0x1e0
[  963.368489][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  963.368489][   T10] 
[  963.370496][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  963.370496][   T10]      netdev_get_by_index+0x5e/0x80
[  963.370496][   T10]      fib6_nh_init+0x3d8/0x1580
[  963.370496][   T10]      ip6_route_info_create+0xf18/0x17d0
[  963.370496][   T10]      addrconf_f6i_alloc+0x315/0x560
[  963.370496][   T10]      ipv6_add_addr+0x411/0x2000
[  963.370496][   T10]      inet6_addr_add+0x30e/0xa40
[  963.370496][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  963.370496][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  963.370496][   T10]      netlink_rcv_skb+0x130/0x360
[  963.370496][   T10]      netlink_unicast+0x449/0x710
[  963.370496][   T10]      netlink_sendmsg+0x723/0xbe0
[  963.370496][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  963.370496][   T10]      ___sys_sendmsg+0xee/0x170
[  963.370496][   T10]      __sys_sendmsg+0xcd/0x170
[  963.370496][   T10]      do_syscall_64+0xc6/0x1e0
[  963.370496][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  963.370496][   T10] 
[  963.372507][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  963.372507][   T10]      netdev_get_by_index+0x5e/0x80
[  963.372507][   T10]      fib6_nh_init+0x3d8/0x1580
[  963.372507][   T10]      ip6_route_info_create+0xf18/0x17d0
[  963.372507][   T10]      ip6_route_add+0x1c/0x140
[  963.372507][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  963.372507][   T10]      addrconf_add_dev+0xe2/0x170
[  963.372507][   T10]      inet6_addr_add+0x12f/0xa40
[  963.372507][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  963.372507][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  963.372507][   T10]      netlink_rcv_skb+0x130/0x360
[  963.372507][   T10]      netlink_unicast+0x449/0x710
[  963.372507][   T10]      netlink_sendmsg+0x723/0xbe0
[  963.372507][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  963.372507][   T10]      ___sys_sendmsg+0xee/0x170
[  963.372507][   T10]      __sys_sendmsg+0xcd/0x170
[  963.372507][   T10]      do_syscall_64+0xc6/0x1e0
[  963.372507][   T10] 
[  963.374487][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  963.374487][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  963.374487][   T10]      ipv6_find_idev+0x102/0x170
[  963.374487][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  963.374487][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  963.374487][   T10]      netlink_rcv_skb+0x130/0x360
[  963.374487][   T10]      netlink_unicast+0x449/0x710
[  963.374487][   T10]      netlink_sendmsg+0x723/0xbe0
[  963.374487][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  963.374487][   T10]      ___sys_sendmsg+0xee/0x170
[  963.374487][   T10]      __sys_sendmsg+0xcd/0x170
[  963.374487][   T10]      do_syscall_64+0xc6/0x1e0
[  963.374487][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  963.374487][   T10] 
[  963.376052][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  963.376052][   T10]      neigh_parms_alloc+0x1e5/0x510
[  963.376052][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  963.376052][   T10]      ipv6_find_idev+0x102/0x170
[  963.376052][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  963.376052][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  963.376052][   T10]      netlink_rcv_skb+0x130/0x360
[  963.376052][   T10]      netlink_unicast+0x449/0x710
[  963.376052][   T10]      netlink_sendmsg+0x723/0xbe0
[  963.376052][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  963.376052][   T10]      ___sys_sendmsg+0xee/0x170
[  963.376052][   T10]      __sys_sendmsg+0xcd/0x170
[  963.376052][   T10]      do_syscall_64+0xc6/0x1e0
[  963.376052][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  963.376052][   T10] 
[  973.617743][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  973.618174][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  973.618174][   T10]      dst_init+0x84/0x4a0
[  973.618174][   T10]      dst_alloc+0x97/0x150
[  973.618174][   T10]      ip6_dst_alloc+0x23/0x90
[  973.618174][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  973.618174][   T10]      ip6_pol_route+0x56f/0x840
[  973.618174][   T10]      fib6_rule_lookup+0x456/0x630
[  973.618174][   T10]      ip6_route_input+0x59c/0xa50
[  973.618174][   T10]      ipv6_rcv+0x397/0x810
[  973.618174][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  973.618174][   T10]      process_backlog+0x101/0x620
[  973.618174][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  973.618174][   T10]      net_rx_action+0x495/0xbe0
[  973.618174][   T10]      __do_softirq+0x1b5/0x7f6
[  973.618174][   T10] 
[  973.619880][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  973.619880][   T10]      netdev_get_by_index+0x5e/0x80
[  973.619880][   T10]      fib6_nh_init+0x3d8/0x1580
[  973.619880][   T10]      ip6_route_info_create+0xf18/0x17d0
[  973.619880][   T10]      ip6_route_add+0x1c/0x140
[  973.619880][   T10]      addrconf_prefix_route+0x2a6/0x430
[  973.619880][   T10]      inet6_addr_add+0x4f8/0xa40
[  973.619880][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  973.619880][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  973.619880][   T10]      netlink_rcv_skb+0x130/0x360
[  973.619880][   T10]      netlink_unicast+0x449/0x710
[  973.619880][   T10]      netlink_sendmsg+0x723/0xbe0
[  973.619880][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  973.619880][   T10]      ___sys_sendmsg+0xee/0x170
[  973.619880][   T10]      __sys_sendmsg+0xcd/0x170
[  973.619880][   T10]      do_syscall_64+0xc6/0x1e0
[  973.619880][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  973.619880][   T10] 
[  973.621931][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  973.621931][   T10]      netdev_get_by_index+0x5e/0x80
[  973.621931][   T10]      fib6_nh_init+0x3d8/0x1580
[  973.621931][   T10]      ip6_route_info_create+0xf18/0x17d0
[  973.621931][   T10]      addrconf_f6i_alloc+0x315/0x560
[  973.621931][   T10]      ipv6_add_addr+0x411/0x2000
[  973.621931][   T10]      inet6_addr_add+0x30e/0xa40
[  973.621931][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  973.621931][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  973.621931][   T10]      netlink_rcv_skb+0x130/0x360
[  973.621931][   T10]      netlink_unicast+0x449/0x710
[  973.621931][   T10]      netlink_sendmsg+0x723/0xbe0
[  973.621931][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  973.621931][   T10]      ___sys_sendmsg+0xee/0x170
[  973.621931][   T10]      __sys_sendmsg+0xcd/0x170
[  973.621931][   T10]      do_syscall_64+0xc6/0x1e0
[  973.621931][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  973.621931][   T10] 
[  973.623942][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  973.623942][   T10]      netdev_get_by_index+0x5e/0x80
[  973.623942][   T10]      fib6_nh_init+0x3d8/0x1580
[  973.623942][   T10]      ip6_route_info_create+0xf18/0x17d0
[  973.623942][   T10]      ip6_route_add+0x1c/0x140
[  973.623942][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  973.623942][   T10]      addrconf_add_dev+0xe2/0x170
[  973.623942][   T10]      inet6_addr_add+0x12f/0xa40
[  973.623942][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  973.623942][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  973.623942][   T10]      netlink_rcv_skb+0x130/0x360
[  973.623942][   T10]      netlink_unicast+0x449/0x710
[  973.623942][   T10]      netlink_sendmsg+0x723/0xbe0
[  973.623942][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  973.623942][   T10]      ___sys_sendmsg+0xee/0x170
[  973.623942][   T10]      __sys_sendmsg+0xcd/0x170
[  973.623942][   T10]      do_syscall_64+0xc6/0x1e0
[  973.623942][   T10] 
[  973.625916][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  973.625916][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  973.625916][   T10]      ipv6_find_idev+0x102/0x170
[  973.625916][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  973.625916][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  973.625916][   T10]      netlink_rcv_skb+0x130/0x360
[  973.625916][   T10]      netlink_unicast+0x449/0x710
[  973.625916][   T10]      netlink_sendmsg+0x723/0xbe0
[  973.625916][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  973.625916][   T10]      ___sys_sendmsg+0xee/0x170
[  973.625916][   T10]      __sys_sendmsg+0xcd/0x170
[  973.625916][   T10]      do_syscall_64+0xc6/0x1e0
[  973.625916][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  973.625916][   T10] 
[  973.627472][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  973.627472][   T10]      neigh_parms_alloc+0x1e5/0x510
[  973.627472][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  973.627472][   T10]      ipv6_find_idev+0x102/0x170
[  973.627472][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  973.627472][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  973.627472][   T10]      netlink_rcv_skb+0x130/0x360
[  973.627472][   T10]      netlink_unicast+0x449/0x710
[  973.627472][   T10]      netlink_sendmsg+0x723/0xbe0
[  973.627472][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  973.627472][   T10]      ___sys_sendmsg+0xee/0x170
[  973.627472][   T10]      __sys_sendmsg+0xcd/0x170
[  973.627472][   T10]      do_syscall_64+0xc6/0x1e0
[  973.627472][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  973.627472][   T10] 
[  973.629165][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  973.629413][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  973.629413][   T10]      dst_init+0x84/0x4a0
[  973.629413][   T10]      dst_alloc+0x97/0x150
[  973.629413][   T10]      ip6_dst_alloc+0x23/0x90
[  973.629413][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  973.629413][   T10]      ip6_pol_route+0x56f/0x840
[  973.629413][   T10]      fib6_rule_lookup+0x456/0x630
[  973.629413][   T10]      ip6_route_input+0x59c/0xa50
[  973.629413][   T10]      ipv6_rcv+0x397/0x810
[  973.629413][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  973.629413][   T10]      process_backlog+0x101/0x620
[  973.629413][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  973.629413][   T10]      net_rx_action+0x495/0xbe0
[  973.629413][   T10]      __do_softirq+0x1b5/0x7f6
[  973.629413][   T10] 
[  973.631072][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  973.631072][   T10]      netdev_get_by_index+0x5e/0x80
[  973.631072][   T10]      fib6_nh_init+0x3d8/0x1580
[  973.631072][   T10]      ip6_route_info_create+0xf18/0x17d0
[  973.631072][   T10]      ip6_route_add+0x1c/0x140
[  973.631072][   T10]      addrconf_prefix_route+0x2a6/0x430
[  973.631072][   T10]      inet6_addr_add+0x4f8/0xa40
[  973.631072][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  973.631072][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  973.631072][   T10]      netlink_rcv_skb+0x130/0x360
[  973.631072][   T10]      netlink_unicast+0x449/0x710
[  973.631072][   T10]      netlink_sendmsg+0x723/0xbe0
[  973.631072][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  973.631072][   T10]      ___sys_sendmsg+0xee/0x170
[  973.631072][   T10]      __sys_sendmsg+0xcd/0x170
[  973.631072][   T10]      do_syscall_64+0xc6/0x1e0
[  973.631072][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  973.631072][   T10] 
[  973.633074][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  973.633074][   T10]      netdev_get_by_index+0x5e/0x80
[  973.633074][   T10]      fib6_nh_init+0x3d8/0x1580
[  973.633074][   T10]      ip6_route_info_create+0xf18/0x17d0
[  973.633074][   T10]      addrconf_f6i_alloc+0x315/0x560
[  973.633074][   T10]      ipv6_add_addr+0x411/0x2000
[  973.633074][   T10]      inet6_addr_add+0x30e/0xa40
[  973.633074][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  973.633074][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  973.633074][   T10]      netlink_rcv_skb+0x130/0x360
[  973.633074][   T10]      netlink_unicast+0x449/0x710
[  973.633074][   T10]      netlink_sendmsg+0x723/0xbe0
[  973.633074][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  973.633074][   T10]      ___sys_sendmsg+0xee/0x170
[  973.633074][   T10]      __sys_sendmsg+0xcd/0x170
[  973.633074][   T10]      do_syscall_64+0xc6/0x1e0
[  973.633074][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  973.633074][   T10] 
[  973.635090][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  973.635090][   T10]      netdev_get_by_index+0x5e/0x80
[  973.635090][   T10]      fib6_nh_init+0x3d8/0x1580
[  973.635090][   T10]      ip6_route_info_create+0xf18/0x17d0
[  973.635090][   T10]      ip6_route_add+0x1c/0x140
[  973.635090][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  973.635090][   T10]      addrconf_add_dev+0xe2/0x170
[  973.635090][   T10]      inet6_addr_add+0x12f/0xa40
[  973.635090][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  973.635090][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  973.635090][   T10]      netlink_rcv_skb+0x130/0x360
[  973.635090][   T10]      netlink_unicast+0x449/0x710
[  973.635090][   T10]      netlink_sendmsg+0x723/0xbe0
[  973.635090][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  973.635090][   T10]      ___sys_sendmsg+0xee/0x170
[  973.635090][   T10]      __sys_sendmsg+0xcd/0x170
[  973.635090][   T10]      do_syscall_64+0xc6/0x1e0
[  973.635090][   T10] 
[  973.637052][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  973.637052][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  973.637052][   T10]      ipv6_find_idev+0x102/0x170
[  973.637052][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  973.637052][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  973.637052][   T10]      netlink_rcv_skb+0x130/0x360
[  973.637052][   T10]      netlink_unicast+0x449/0x710
[  973.637052][   T10]      netlink_sendmsg+0x723/0xbe0
[  973.637052][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  973.637052][   T10]      ___sys_sendmsg+0xee/0x170
[  973.637052][   T10]      __sys_sendmsg+0xcd/0x170
[  973.637052][   T10]      do_syscall_64+0xc6/0x1e0
[  973.637052][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  973.637052][   T10] 
[  973.638969][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  973.638969][   T10]      neigh_parms_alloc+0x1e5/0x510
[  973.638969][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  973.638969][   T10]      ipv6_find_idev+0x102/0x170
[  973.638969][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  973.638969][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  973.638969][   T10]      netlink_rcv_skb+0x130/0x360
[  973.638969][   T10]      netlink_unicast+0x449/0x710
[  973.638969][   T10]      netlink_sendmsg+0x723/0xbe0
[  973.638969][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  973.638969][   T10]      ___sys_sendmsg+0xee/0x170
[  973.638969][   T10]      __sys_sendmsg+0xcd/0x170
[  973.638969][   T10]      do_syscall_64+0xc6/0x1e0
[  973.638969][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  973.638969][   T10] 
[  983.753859][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  983.754556][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  983.754556][   T10]      dst_init+0x84/0x4a0
[  983.754556][   T10]      dst_alloc+0x97/0x150
[  983.754556][   T10]      ip6_dst_alloc+0x23/0x90
[  983.754556][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  983.754556][   T10]      ip6_pol_route+0x56f/0x840
[  983.754556][   T10]      fib6_rule_lookup+0x456/0x630
[  983.754556][   T10]      ip6_route_input+0x59c/0xa50
[  983.754556][   T10]      ipv6_rcv+0x397/0x810
[  983.754556][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  983.754556][   T10]      process_backlog+0x101/0x620
[  983.754556][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  983.754556][   T10]      net_rx_action+0x495/0xbe0
[  983.754556][   T10]      __do_softirq+0x1b5/0x7f6
[  983.754556][   T10] 
[  983.756276][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  983.756276][   T10]      netdev_get_by_index+0x5e/0x80
[  983.756276][   T10]      fib6_nh_init+0x3d8/0x1580
[  983.756276][   T10]      ip6_route_info_create+0xf18/0x17d0
[  983.756276][   T10]      ip6_route_add+0x1c/0x140
[  983.756276][   T10]      addrconf_prefix_route+0x2a6/0x430
[  983.756276][   T10]      inet6_addr_add+0x4f8/0xa40
[  983.756276][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  983.756276][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  983.756276][   T10]      netlink_rcv_skb+0x130/0x360
[  983.756276][   T10]      netlink_unicast+0x449/0x710
[  983.756276][   T10]      netlink_sendmsg+0x723/0xbe0
[  983.756276][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  983.756276][   T10]      ___sys_sendmsg+0xee/0x170
[  983.756276][   T10]      __sys_sendmsg+0xcd/0x170
[  983.756276][   T10]      do_syscall_64+0xc6/0x1e0
[  983.756276][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  983.756276][   T10] 
[  983.758315][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  983.758315][   T10]      netdev_get_by_index+0x5e/0x80
[  983.758315][   T10]      fib6_nh_init+0x3d8/0x1580
[  983.758315][   T10]      ip6_route_info_create+0xf18/0x17d0
[  983.758315][   T10]      addrconf_f6i_alloc+0x315/0x560
[  983.758315][   T10]      ipv6_add_addr+0x411/0x2000
[  983.758315][   T10]      inet6_addr_add+0x30e/0xa40
[  983.758315][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  983.758315][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  983.758315][   T10]      netlink_rcv_skb+0x130/0x360
[  983.758315][   T10]      netlink_unicast+0x449/0x710
[  983.758315][   T10]      netlink_sendmsg+0x723/0xbe0
[  983.758315][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  983.758315][   T10]      ___sys_sendmsg+0xee/0x170
[  983.758315][   T10]      __sys_sendmsg+0xcd/0x170
[  983.758315][   T10]      do_syscall_64+0xc6/0x1e0
[  983.758315][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  983.758315][   T10] 
[  983.760347][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  983.760347][   T10]      netdev_get_by_index+0x5e/0x80
[  983.760347][   T10]      fib6_nh_init+0x3d8/0x1580
[  983.760347][   T10]      ip6_route_info_create+0xf18/0x17d0
[  983.760347][   T10]      ip6_route_add+0x1c/0x140
[  983.760347][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  983.760347][   T10]      addrconf_add_dev+0xe2/0x170
[  983.760347][   T10]      inet6_addr_add+0x12f/0xa40
[  983.760347][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  983.760347][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  983.760347][   T10]      netlink_rcv_skb+0x130/0x360
[  983.760347][   T10]      netlink_unicast+0x449/0x710
[  983.760347][   T10]      netlink_sendmsg+0x723/0xbe0
[  983.760347][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  983.760347][   T10]      ___sys_sendmsg+0xee/0x170
[  983.760347][   T10]      __sys_sendmsg+0xcd/0x170
[  983.760347][   T10]      do_syscall_64+0xc6/0x1e0
[  983.760347][   T10] 
[  983.762336][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  983.762336][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  983.762336][   T10]      ipv6_find_idev+0x102/0x170
[  983.762336][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  983.762336][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  983.762336][   T10]      netlink_rcv_skb+0x130/0x360
[  983.762336][   T10]      netlink_unicast+0x449/0x710
[  983.762336][   T10]      netlink_sendmsg+0x723/0xbe0
[  983.762336][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  983.762336][   T10]      ___sys_sendmsg+0xee/0x170
[  983.762336][   T10]      __sys_sendmsg+0xcd/0x170
[  983.762336][   T10]      do_syscall_64+0xc6/0x1e0
[  983.762336][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  983.762336][   T10] 
[  983.763887][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  983.763887][   T10]      neigh_parms_alloc+0x1e5/0x510
[  983.763887][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  983.763887][   T10]      ipv6_find_idev+0x102/0x170
[  983.763887][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  983.763887][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  983.763887][   T10]      netlink_rcv_skb+0x130/0x360
[  983.763887][   T10]      netlink_unicast+0x449/0x710
[  983.763887][   T10]      netlink_sendmsg+0x723/0xbe0
[  983.763887][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  983.763887][   T10]      ___sys_sendmsg+0xee/0x170
[  983.763887][   T10]      __sys_sendmsg+0xcd/0x170
[  983.763887][   T10]      do_syscall_64+0xc6/0x1e0
[  983.763887][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  983.763887][   T10] 
[  983.765593][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  983.765853][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  983.765853][   T10]      dst_init+0x84/0x4a0
[  983.765853][   T10]      dst_alloc+0x97/0x150
[  983.765853][   T10]      ip6_dst_alloc+0x23/0x90
[  983.765853][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  983.765853][   T10]      ip6_pol_route+0x56f/0x840
[  983.765853][   T10]      fib6_rule_lookup+0x456/0x630
[  983.765853][   T10]      ip6_route_input+0x59c/0xa50
[  983.765853][   T10]      ipv6_rcv+0x397/0x810
[  983.765853][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  983.765853][   T10]      process_backlog+0x101/0x620
[  983.765853][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  983.765853][   T10]      net_rx_action+0x495/0xbe0
[  983.765853][   T10]      __do_softirq+0x1b5/0x7f6
[  983.765853][   T10] 
[  983.767511][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  983.767511][   T10]      netdev_get_by_index+0x5e/0x80
[  983.767511][   T10]      fib6_nh_init+0x3d8/0x1580
[  983.767511][   T10]      ip6_route_info_create+0xf18/0x17d0
[  983.767511][   T10]      ip6_route_add+0x1c/0x140
[  983.767511][   T10]      addrconf_prefix_route+0x2a6/0x430
[  983.767511][   T10]      inet6_addr_add+0x4f8/0xa40
[  983.767511][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  983.767511][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  983.767511][   T10]      netlink_rcv_skb+0x130/0x360
[  983.767511][   T10]      netlink_unicast+0x449/0x710
[  983.767511][   T10]      netlink_sendmsg+0x723/0xbe0
[  983.767511][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  983.767511][   T10]      ___sys_sendmsg+0xee/0x170
[  983.767511][   T10]      __sys_sendmsg+0xcd/0x170
[  983.767511][   T10]      do_syscall_64+0xc6/0x1e0
[  983.767511][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  983.767511][   T10] 
[  983.769912][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  983.769912][   T10]      netdev_get_by_index+0x5e/0x80
[  983.769912][   T10]      fib6_nh_init+0x3d8/0x1580
[  983.769912][   T10]      ip6_route_info_create+0xf18/0x17d0
[  983.769912][   T10]      addrconf_f6i_alloc+0x315/0x560
[  983.769912][   T10]      ipv6_add_addr+0x411/0x2000
[  983.769912][   T10]      inet6_addr_add+0x30e/0xa40
[  983.769912][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  983.769912][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  983.769912][   T10]      netlink_rcv_skb+0x130/0x360
[  983.769912][   T10]      netlink_unicast+0x449/0x710
[  983.769912][   T10]      netlink_sendmsg+0x723/0xbe0
[  983.769912][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  983.769912][   T10]      ___sys_sendmsg+0xee/0x170
[  983.769912][   T10]      __sys_sendmsg+0xcd/0x170
[  983.769912][   T10]      do_syscall_64+0xc6/0x1e0
[  983.769912][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  983.769912][   T10] 
[  983.771931][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  983.771931][   T10]      netdev_get_by_index+0x5e/0x80
[  983.771931][   T10]      fib6_nh_init+0x3d8/0x1580
[  983.771931][   T10]      ip6_route_info_create+0xf18/0x17d0
[  983.771931][   T10]      ip6_route_add+0x1c/0x140
[  983.771931][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  983.771931][   T10]      addrconf_add_dev+0xe2/0x170
[  983.771931][   T10]      inet6_addr_add+0x12f/0xa40
[  983.771931][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  983.771931][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  983.771931][   T10]      netlink_rcv_skb+0x130/0x360
[  983.771931][   T10]      netlink_unicast+0x449/0x710
[  983.771931][   T10]      netlink_sendmsg+0x723/0xbe0
[  983.771931][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  983.771931][   T10]      ___sys_sendmsg+0xee/0x170
[  983.771931][   T10]      __sys_sendmsg+0xcd/0x170
[  983.771931][   T10]      do_syscall_64+0xc6/0x1e0
[  983.771931][   T10] 
[  983.773898][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  983.773898][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  983.773898][   T10]      ipv6_find_idev+0x102/0x170
[  983.773898][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  983.773898][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  983.773898][   T10]      netlink_rcv_skb+0x130/0x360
[  983.773898][   T10]      netlink_unicast+0x449/0x710
[  983.773898][   T10]      netlink_sendmsg+0x723/0xbe0
[  983.773898][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  983.773898][   T10]      ___sys_sendmsg+0xee/0x170
[  983.773898][   T10]      __sys_sendmsg+0xcd/0x170
[  983.773898][   T10]      do_syscall_64+0xc6/0x1e0
[  983.773898][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  983.773898][   T10] 
[  983.775443][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  983.775443][   T10]      neigh_parms_alloc+0x1e5/0x510
[  983.775443][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  983.775443][   T10]      ipv6_find_idev+0x102/0x170
[  983.775443][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  983.775443][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  983.775443][   T10]      netlink_rcv_skb+0x130/0x360
[  983.775443][   T10]      netlink_unicast+0x449/0x710
[  983.775443][   T10]      netlink_sendmsg+0x723/0xbe0
[  983.775443][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  983.775443][   T10]      ___sys_sendmsg+0xee/0x170
[  983.775443][   T10]      __sys_sendmsg+0xcd/0x170
[  983.775443][   T10]      do_syscall_64+0xc6/0x1e0
[  983.775443][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  983.775443][   T10] 
[  984.361892][   T42] INFO: task modprobe:376 blocked for more than 860 seconds.
[  984.362465][   T42]       Not tainted 6.8.0-virtme #1
[  984.362590][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  984.362821][   T42] task:modprobe        state:D stack:25648 pid:376   tgid:376   ppid:39     flags:0x00004002
[  984.363075][   T42] Call Trace:
[  984.363174][   T42]  <TASK>
[  984.363248][   T42]  __schedule+0x705/0x1ac0
[  984.363389][   T42]  ? __pfx___schedule+0x10/0x10
[  984.363516][   T42]  ? schedule+0x1a5/0x210
[  984.363618][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  984.363766][   T42]  ? mark_lock+0x38/0x3e0
[  984.363865][   T42]  ? do_raw_spin_lock+0x131/0x270
[  984.363996][   T42]  ? schedule+0x1a5/0x210
[  984.364103][   T42]  schedule+0xdf/0x210
[  984.364206][   T42]  schedule_preempt_disabled+0x15/0x30
[  984.364333][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[  984.364467][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[  984.364626][   T42]  ? kasan_save_stack+0x34/0x50
[  984.364767][   T42]  ? kasan_save_stack+0x24/0x50
[  984.364896][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  984.365034][   T42]  ? lock_acquire+0x1c1/0x220
[  984.365162][   T42]  ? register_pernet_subsys+0x1a/0x50
[  984.365299][   T42]  down_write+0x1c9/0x200
[  984.365398][   T42]  ? __pfx_down_write+0x10/0x10
[  984.365525][   T42]  ? __pfx___lock_release+0x10/0x10
[  984.365658][   T42]  ? __pfx_nf_defrag_init+0x10/0x10 [nf_defrag_ipv4]
[  984.365844][   T42]  register_pernet_subsys+0x1a/0x50
[  984.365970][   T42]  nf_defrag_init+0x19/0xff0 [nf_defrag_ipv4]
[  984.366126][   T42]  do_one_initcall+0xc8/0x3f0
[  984.366254][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[  984.366402][   T42]  ? __create_object+0x5e/0xb0
[  984.366534][   T42]  ? kasan_unpoison+0x27/0x60
[  984.366690][   T42]  do_init_module+0x233/0x740
[  984.366832][   T42]  load_module+0x16b5/0x2350
[  984.366972][   T42]  ? __pfx_load_module+0x10/0x10
[  984.367099][   T42]  ? kernel_read_file+0x3d2/0x520
[  984.367231][   T42]  ? kernel_read_file+0x300/0x520
[  984.367363][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[  984.367510][   T42]  ? init_module_from_file+0xd2/0x130
[  984.367640][   T42]  init_module_from_file+0xd2/0x130
[  984.367777][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[  984.367935][   T42]  ? __lock_release+0x103/0x460
[  984.368062][   T42]  ? idempotent_init_module+0x32a/0x620
[  984.368214][   T42]  ? idempotent_init_module+0x32a/0x620
[  984.368342][   T42]  ? do_raw_spin_unlock+0x58/0x220
[  984.368478][   T42]  idempotent_init_module+0x342/0x620
[  984.368608][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[  984.368793][   T42]  __x64_sys_finit_module+0xbe/0x130
[  984.368923][   T42]  do_syscall_64+0xc6/0x1e0
[  984.369053][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  984.369211][   T42] RIP: 0033:0x7f5fd44b2e5d
[  984.369344][   T42] RSP: 002b:00007ffcc85e8928 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  984.369536][   T42] RAX: ffffffffffffffda RBX: 000055d19cb2e8d0 RCX: 00007f5fd44b2e5d
[  984.369738][   T42] RDX: 0000000000000000 RSI: 000055d18f6a6a2a RDI: 0000000000000000
[  984.369925][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 000055d19cb2dc10
[  984.370115][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055d18f6a6a2a
[  984.370302][   T42] R13: 000055d19cb2e880 R14: 000055d19cb2f710 R15: 0000000000000000
[  984.370504][   T42]  </TASK>
[  984.370601][   T42] 
[  984.370601][   T42] Showing all locks held in the system:
[  984.370803][   T42] 3 locks held by kworker/u16:0/10:
[  984.370932][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  984.371186][   T42]  #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  984.371411][   T42]  #2: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[  984.371633][   T42] 2 locks held by kworker/u20:0/39:
[  984.371768][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  984.372019][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  984.372300][   T42] 1 lock held by khungtaskd/42:
[  984.372421][   T42]  #0: ffffffff9b5591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[  984.372661][   T42] 1 lock held by modprobe/376:
[  984.372788][   T42]  #0: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[  984.373063][   T42] 
[  984.373127][   T42] =============================================
[  984.373127][   T42] 
[  994.009798][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[  994.010527][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  994.010527][   T10]      dst_init+0x84/0x4a0
[  994.010527][   T10]      dst_alloc+0x97/0x150
[  994.010527][   T10]      ip6_dst_alloc+0x23/0x90
[  994.010527][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  994.010527][   T10]      ip6_pol_route+0x56f/0x840
[  994.010527][   T10]      fib6_rule_lookup+0x456/0x630
[  994.010527][   T10]      ip6_route_input+0x59c/0xa50
[  994.010527][   T10]      ipv6_rcv+0x397/0x810
[  994.010527][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  994.010527][   T10]      process_backlog+0x101/0x620
[  994.010527][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  994.010527][   T10]      net_rx_action+0x495/0xbe0
[  994.010527][   T10]      __do_softirq+0x1b5/0x7f6
[  994.010527][   T10] 
[  994.012202][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  994.012202][   T10]      netdev_get_by_index+0x5e/0x80
[  994.012202][   T10]      fib6_nh_init+0x3d8/0x1580
[  994.012202][   T10]      ip6_route_info_create+0xf18/0x17d0
[  994.012202][   T10]      ip6_route_add+0x1c/0x140
[  994.012202][   T10]      addrconf_prefix_route+0x2a6/0x430
[  994.012202][   T10]      inet6_addr_add+0x4f8/0xa40
[  994.012202][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  994.012202][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  994.012202][   T10]      netlink_rcv_skb+0x130/0x360
[  994.012202][   T10]      netlink_unicast+0x449/0x710
[  994.012202][   T10]      netlink_sendmsg+0x723/0xbe0
[  994.012202][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  994.012202][   T10]      ___sys_sendmsg+0xee/0x170
[  994.012202][   T10]      __sys_sendmsg+0xcd/0x170
[  994.012202][   T10]      do_syscall_64+0xc6/0x1e0
[  994.012202][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  994.012202][   T10] 
[  994.014221][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  994.014221][   T10]      netdev_get_by_index+0x5e/0x80
[  994.014221][   T10]      fib6_nh_init+0x3d8/0x1580
[  994.014221][   T10]      ip6_route_info_create+0xf18/0x17d0
[  994.014221][   T10]      addrconf_f6i_alloc+0x315/0x560
[  994.014221][   T10]      ipv6_add_addr+0x411/0x2000
[  994.014221][   T10]      inet6_addr_add+0x30e/0xa40
[  994.014221][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  994.014221][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  994.014221][   T10]      netlink_rcv_skb+0x130/0x360
[  994.014221][   T10]      netlink_unicast+0x449/0x710
[  994.014221][   T10]      netlink_sendmsg+0x723/0xbe0
[  994.014221][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  994.014221][   T10]      ___sys_sendmsg+0xee/0x170
[  994.014221][   T10]      __sys_sendmsg+0xcd/0x170
[  994.014221][   T10]      do_syscall_64+0xc6/0x1e0
[  994.014221][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  994.014221][   T10] 
[  994.016246][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  994.016246][   T10]      netdev_get_by_index+0x5e/0x80
[  994.016246][   T10]      fib6_nh_init+0x3d8/0x1580
[  994.016246][   T10]      ip6_route_info_create+0xf18/0x17d0
[  994.016246][   T10]      ip6_route_add+0x1c/0x140
[  994.016246][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  994.016246][   T10]      addrconf_add_dev+0xe2/0x170
[  994.016246][   T10]      inet6_addr_add+0x12f/0xa40
[  994.016246][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  994.016246][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  994.016246][   T10]      netlink_rcv_skb+0x130/0x360
[  994.016246][   T10]      netlink_unicast+0x449/0x710
[  994.016246][   T10]      netlink_sendmsg+0x723/0xbe0
[  994.016246][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  994.016246][   T10]      ___sys_sendmsg+0xee/0x170
[  994.016246][   T10]      __sys_sendmsg+0xcd/0x170
[  994.016246][   T10]      do_syscall_64+0xc6/0x1e0
[  994.016246][   T10] 
[  994.018786][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  994.018786][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  994.018786][   T10]      ipv6_find_idev+0x102/0x170
[  994.018786][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  994.018786][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  994.018786][   T10]      netlink_rcv_skb+0x130/0x360
[  994.018786][   T10]      netlink_unicast+0x449/0x710
[  994.018786][   T10]      netlink_sendmsg+0x723/0xbe0
[  994.018786][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  994.018786][   T10]      ___sys_sendmsg+0xee/0x170
[  994.018786][   T10]      __sys_sendmsg+0xcd/0x170
[  994.018786][   T10]      do_syscall_64+0xc6/0x1e0
[  994.018786][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  994.018786][   T10] 
[  994.020798][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[  994.020798][   T10]      neigh_parms_alloc+0x1e5/0x510
[  994.020798][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  994.020798][   T10]      ipv6_find_idev+0x102/0x170
[  994.020798][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  994.020798][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  994.020798][   T10]      netlink_rcv_skb+0x130/0x360
[  994.020798][   T10]      netlink_unicast+0x449/0x710
[  994.020798][   T10]      netlink_sendmsg+0x723/0xbe0
[  994.020798][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  994.020798][   T10]      ___sys_sendmsg+0xee/0x170
[  994.020798][   T10]      __sys_sendmsg+0xcd/0x170
[  994.020798][   T10]      do_syscall_64+0xc6/0x1e0
[  994.020798][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  994.020798][   T10] 
[  994.022578][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[  994.022840][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  994.022840][   T10]      dst_init+0x84/0x4a0
[  994.022840][   T10]      dst_alloc+0x97/0x150
[  994.022840][   T10]      ip6_dst_alloc+0x23/0x90
[  994.022840][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  994.022840][   T10]      ip6_pol_route+0x56f/0x840
[  994.022840][   T10]      fib6_rule_lookup+0x456/0x630
[  994.022840][   T10]      ip6_route_input+0x59c/0xa50
[  994.022840][   T10]      ipv6_rcv+0x397/0x810
[  994.022840][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[  994.022840][   T10]      process_backlog+0x101/0x620
[  994.022840][   T10]      __napi_poll.constprop.0+0xa2/0x460
[  994.022840][   T10]      net_rx_action+0x495/0xbe0
[  994.022840][   T10]      __do_softirq+0x1b5/0x7f6
[  994.022840][   T10] 
[  994.024585][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  994.024585][   T10]      netdev_get_by_index+0x5e/0x80
[  994.024585][   T10]      fib6_nh_init+0x3d8/0x1580
[  994.024585][   T10]      ip6_route_info_create+0xf18/0x17d0
[  994.024585][   T10]      ip6_route_add+0x1c/0x140
[  994.024585][   T10]      addrconf_prefix_route+0x2a6/0x430
[  994.024585][   T10]      inet6_addr_add+0x4f8/0xa40
[  994.024585][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  994.024585][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  994.024585][   T10]      netlink_rcv_skb+0x130/0x360
[  994.024585][   T10]      netlink_unicast+0x449/0x710
[  994.024585][   T10]      netlink_sendmsg+0x723/0xbe0
[  994.024585][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  994.024585][   T10]      ___sys_sendmsg+0xee/0x170
[  994.024585][   T10]      __sys_sendmsg+0xcd/0x170
[  994.024585][   T10]      do_syscall_64+0xc6/0x1e0
[  994.024585][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  994.024585][   T10] 
[  994.026676][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  994.026676][   T10]      netdev_get_by_index+0x5e/0x80
[  994.026676][   T10]      fib6_nh_init+0x3d8/0x1580
[  994.026676][   T10]      ip6_route_info_create+0xf18/0x17d0
[  994.026676][   T10]      addrconf_f6i_alloc+0x315/0x560
[  994.026676][   T10]      ipv6_add_addr+0x411/0x2000
[  994.026676][   T10]      inet6_addr_add+0x30e/0xa40
[  994.026676][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  994.026676][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  994.026676][   T10]      netlink_rcv_skb+0x130/0x360
[  994.026676][   T10]      netlink_unicast+0x449/0x710
[  994.026676][   T10]      netlink_sendmsg+0x723/0xbe0
[  994.026676][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  994.026676][   T10]      ___sys_sendmsg+0xee/0x170
[  994.026676][   T10]      __sys_sendmsg+0xcd/0x170
[  994.026676][   T10]      do_syscall_64+0xc6/0x1e0
[  994.026676][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  994.026676][   T10] 
[  994.028822][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  994.028822][   T10]      netdev_get_by_index+0x5e/0x80
[  994.028822][   T10]      fib6_nh_init+0x3d8/0x1580
[  994.028822][   T10]      ip6_route_info_create+0xf18/0x17d0
[  994.028822][   T10]      ip6_route_add+0x1c/0x140
[  994.028822][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  994.028822][   T10]      addrconf_add_dev+0xe2/0x170
[  994.028822][   T10]      inet6_addr_add+0x12f/0xa40
[  994.028822][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  994.028822][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  994.028822][   T10]      netlink_rcv_skb+0x130/0x360
[  994.028822][   T10]      netlink_unicast+0x449/0x710
[  994.028822][   T10]      netlink_sendmsg+0x723/0xbe0
[  994.028822][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  994.028822][   T10]      ___sys_sendmsg+0xee/0x170
[  994.028822][   T10]      __sys_sendmsg+0xcd/0x170
[  994.028822][   T10]      do_syscall_64+0xc6/0x1e0
[  994.028822][   T10] 
[  994.030890][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  994.030890][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  994.030890][   T10]      ipv6_find_idev+0x102/0x170
[  994.030890][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  994.030890][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  994.030890][   T10]      netlink_rcv_skb+0x130/0x360
[  994.030890][   T10]      netlink_unicast+0x449/0x710
[  994.030890][   T10]      netlink_sendmsg+0x723/0xbe0
[  994.030890][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  994.030890][   T10]      ___sys_sendmsg+0xee/0x170
[  994.030890][   T10]      __sys_sendmsg+0xcd/0x170
[  994.030890][   T10]      do_syscall_64+0xc6/0x1e0
[  994.030890][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  994.030890][   T10] 
[  994.032517][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[  994.032517][   T10]      neigh_parms_alloc+0x1e5/0x510
[  994.032517][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  994.032517][   T10]      ipv6_find_idev+0x102/0x170
[  994.032517][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  994.032517][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  994.032517][   T10]      netlink_rcv_skb+0x130/0x360
[  994.032517][   T10]      netlink_unicast+0x449/0x710
[  994.032517][   T10]      netlink_sendmsg+0x723/0xbe0
[  994.032517][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  994.032517][   T10]      ___sys_sendmsg+0xee/0x170
[  994.032517][   T10]      __sys_sendmsg+0xcd/0x170
[  994.032517][   T10]      do_syscall_64+0xc6/0x1e0
[  994.032517][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  994.032517][   T10] 
[ 1004.289810][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1004.290228][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1004.290228][   T10]      dst_init+0x84/0x4a0
[ 1004.290228][   T10]      dst_alloc+0x97/0x150
[ 1004.290228][   T10]      ip6_dst_alloc+0x23/0x90
[ 1004.290228][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1004.290228][   T10]      ip6_pol_route+0x56f/0x840
[ 1004.290228][   T10]      fib6_rule_lookup+0x456/0x630
[ 1004.290228][   T10]      ip6_route_input+0x59c/0xa50
[ 1004.290228][   T10]      ipv6_rcv+0x397/0x810
[ 1004.290228][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1004.290228][   T10]      process_backlog+0x101/0x620
[ 1004.290228][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1004.290228][   T10]      net_rx_action+0x495/0xbe0
[ 1004.290228][   T10]      __do_softirq+0x1b5/0x7f6
[ 1004.290228][   T10] 
[ 1004.291929][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1004.291929][   T10]      netdev_get_by_index+0x5e/0x80
[ 1004.291929][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1004.291929][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1004.291929][   T10]      ip6_route_add+0x1c/0x140
[ 1004.291929][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1004.291929][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1004.291929][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1004.291929][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1004.291929][   T10]      netlink_rcv_skb+0x130/0x360
[ 1004.291929][   T10]      netlink_unicast+0x449/0x710
[ 1004.291929][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1004.291929][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1004.291929][   T10]      ___sys_sendmsg+0xee/0x170
[ 1004.291929][   T10]      __sys_sendmsg+0xcd/0x170
[ 1004.291929][   T10]      do_syscall_64+0xc6/0x1e0
[ 1004.291929][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1004.291929][   T10] 
[ 1004.293944][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1004.293944][   T10]      netdev_get_by_index+0x5e/0x80
[ 1004.293944][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1004.293944][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1004.293944][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1004.293944][   T10]      ipv6_add_addr+0x411/0x2000
[ 1004.293944][   T10]      inet6_addr_add+0x30e/0xa40
[ 1004.293944][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1004.293944][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1004.293944][   T10]      netlink_rcv_skb+0x130/0x360
[ 1004.293944][   T10]      netlink_unicast+0x449/0x710
[ 1004.293944][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1004.293944][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1004.293944][   T10]      ___sys_sendmsg+0xee/0x170
[ 1004.293944][   T10]      __sys_sendmsg+0xcd/0x170
[ 1004.293944][   T10]      do_syscall_64+0xc6/0x1e0
[ 1004.293944][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1004.293944][   T10] 
[ 1004.295956][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1004.295956][   T10]      netdev_get_by_index+0x5e/0x80
[ 1004.295956][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1004.295956][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1004.295956][   T10]      ip6_route_add+0x1c/0x140
[ 1004.295956][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1004.295956][   T10]      addrconf_add_dev+0xe2/0x170
[ 1004.295956][   T10]      inet6_addr_add+0x12f/0xa40
[ 1004.295956][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1004.295956][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1004.295956][   T10]      netlink_rcv_skb+0x130/0x360
[ 1004.295956][   T10]      netlink_unicast+0x449/0x710
[ 1004.295956][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1004.295956][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1004.295956][   T10]      ___sys_sendmsg+0xee/0x170
[ 1004.295956][   T10]      __sys_sendmsg+0xcd/0x170
[ 1004.295956][   T10]      do_syscall_64+0xc6/0x1e0
[ 1004.295956][   T10] 
[ 1004.297940][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1004.297940][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1004.297940][   T10]      ipv6_find_idev+0x102/0x170
[ 1004.297940][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1004.297940][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1004.297940][   T10]      netlink_rcv_skb+0x130/0x360
[ 1004.297940][   T10]      netlink_unicast+0x449/0x710
[ 1004.297940][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1004.297940][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1004.297940][   T10]      ___sys_sendmsg+0xee/0x170
[ 1004.297940][   T10]      __sys_sendmsg+0xcd/0x170
[ 1004.297940][   T10]      do_syscall_64+0xc6/0x1e0
[ 1004.297940][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1004.297940][   T10] 
[ 1004.299489][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1004.299489][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1004.299489][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1004.299489][   T10]      ipv6_find_idev+0x102/0x170
[ 1004.299489][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1004.299489][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1004.299489][   T10]      netlink_rcv_skb+0x130/0x360
[ 1004.299489][   T10]      netlink_unicast+0x449/0x710
[ 1004.299489][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1004.299489][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1004.299489][   T10]      ___sys_sendmsg+0xee/0x170
[ 1004.299489][   T10]      __sys_sendmsg+0xcd/0x170
[ 1004.299489][   T10]      do_syscall_64+0xc6/0x1e0
[ 1004.299489][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1004.299489][   T10] 
[ 1004.301201][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1004.301440][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1004.301440][   T10]      dst_init+0x84/0x4a0
[ 1004.301440][   T10]      dst_alloc+0x97/0x150
[ 1004.301440][   T10]      ip6_dst_alloc+0x23/0x90
[ 1004.301440][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1004.301440][   T10]      ip6_pol_route+0x56f/0x840
[ 1004.301440][   T10]      fib6_rule_lookup+0x456/0x630
[ 1004.301440][   T10]      ip6_route_input+0x59c/0xa50
[ 1004.301440][   T10]      ipv6_rcv+0x397/0x810
[ 1004.301440][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1004.301440][   T10]      process_backlog+0x101/0x620
[ 1004.301440][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1004.301440][   T10]      net_rx_action+0x495/0xbe0
[ 1004.301440][   T10]      __do_softirq+0x1b5/0x7f6
[ 1004.301440][   T10] 
[ 1004.303081][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1004.303081][   T10]      netdev_get_by_index+0x5e/0x80
[ 1004.303081][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1004.303081][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1004.303081][   T10]      ip6_route_add+0x1c/0x140
[ 1004.303081][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1004.303081][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1004.303081][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1004.303081][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1004.303081][   T10]      netlink_rcv_skb+0x130/0x360
[ 1004.303081][   T10]      netlink_unicast+0x449/0x710
[ 1004.303081][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1004.303081][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1004.303081][   T10]      ___sys_sendmsg+0xee/0x170
[ 1004.303081][   T10]      __sys_sendmsg+0xcd/0x170
[ 1004.303081][   T10]      do_syscall_64+0xc6/0x1e0
[ 1004.303081][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1004.303081][   T10] 
[ 1004.305093][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1004.305093][   T10]      netdev_get_by_index+0x5e/0x80
[ 1004.305093][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1004.305093][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1004.305093][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1004.305093][   T10]      ipv6_add_addr+0x411/0x2000
[ 1004.305093][   T10]      inet6_addr_add+0x30e/0xa40
[ 1004.305093][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1004.305093][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1004.305093][   T10]      netlink_rcv_skb+0x130/0x360
[ 1004.305093][   T10]      netlink_unicast+0x449/0x710
[ 1004.305093][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1004.305093][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1004.305093][   T10]      ___sys_sendmsg+0xee/0x170
[ 1004.305093][   T10]      __sys_sendmsg+0xcd/0x170
[ 1004.305093][   T10]      do_syscall_64+0xc6/0x1e0
[ 1004.305093][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1004.305093][   T10] 
[ 1004.307113][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1004.307113][   T10]      netdev_get_by_index+0x5e/0x80
[ 1004.307113][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1004.307113][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1004.307113][   T10]      ip6_route_add+0x1c/0x140
[ 1004.307113][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1004.307113][   T10]      addrconf_add_dev+0xe2/0x170
[ 1004.307113][   T10]      inet6_addr_add+0x12f/0xa40
[ 1004.307113][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1004.307113][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1004.307113][   T10]      netlink_rcv_skb+0x130/0x360
[ 1004.307113][   T10]      netlink_unicast+0x449/0x710
[ 1004.307113][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1004.307113][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1004.307113][   T10]      ___sys_sendmsg+0xee/0x170
[ 1004.307113][   T10]      __sys_sendmsg+0xcd/0x170
[ 1004.307113][   T10]      do_syscall_64+0xc6/0x1e0
[ 1004.307113][   T10] 
[ 1004.309115][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1004.309115][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1004.309115][   T10]      ipv6_find_idev+0x102/0x170
[ 1004.309115][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1004.309115][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1004.309115][   T10]      netlink_rcv_skb+0x130/0x360
[ 1004.309115][   T10]      netlink_unicast+0x449/0x710
[ 1004.309115][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1004.309115][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1004.309115][   T10]      ___sys_sendmsg+0xee/0x170
[ 1004.309115][   T10]      __sys_sendmsg+0xcd/0x170
[ 1004.309115][   T10]      do_syscall_64+0xc6/0x1e0
[ 1004.309115][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1004.309115][   T10] 
[ 1004.310655][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1004.310655][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1004.310655][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1004.310655][   T10]      ipv6_find_idev+0x102/0x170
[ 1004.310655][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1004.310655][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1004.310655][   T10]      netlink_rcv_skb+0x130/0x360
[ 1004.310655][   T10]      netlink_unicast+0x449/0x710
[ 1004.310655][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1004.310655][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1004.310655][   T10]      ___sys_sendmsg+0xee/0x170
[ 1004.310655][   T10]      __sys_sendmsg+0xcd/0x170
[ 1004.310655][   T10]      do_syscall_64+0xc6/0x1e0
[ 1004.310655][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1004.310655][   T10] 
[ 1014.537801][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1014.538228][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1014.538228][   T10]      dst_init+0x84/0x4a0
[ 1014.538228][   T10]      dst_alloc+0x97/0x150
[ 1014.538228][   T10]      ip6_dst_alloc+0x23/0x90
[ 1014.538228][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1014.538228][   T10]      ip6_pol_route+0x56f/0x840
[ 1014.538228][   T10]      fib6_rule_lookup+0x456/0x630
[ 1014.538228][   T10]      ip6_route_input+0x59c/0xa50
[ 1014.538228][   T10]      ipv6_rcv+0x397/0x810
[ 1014.538228][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1014.538228][   T10]      process_backlog+0x101/0x620
[ 1014.538228][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1014.538228][   T10]      net_rx_action+0x495/0xbe0
[ 1014.538228][   T10]      __do_softirq+0x1b5/0x7f6
[ 1014.538228][   T10] 
[ 1014.539921][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1014.539921][   T10]      netdev_get_by_index+0x5e/0x80
[ 1014.539921][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1014.539921][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1014.539921][   T10]      ip6_route_add+0x1c/0x140
[ 1014.539921][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1014.539921][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1014.539921][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1014.539921][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1014.539921][   T10]      netlink_rcv_skb+0x130/0x360
[ 1014.539921][   T10]      netlink_unicast+0x449/0x710
[ 1014.539921][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1014.539921][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1014.539921][   T10]      ___sys_sendmsg+0xee/0x170
[ 1014.539921][   T10]      __sys_sendmsg+0xcd/0x170
[ 1014.539921][   T10]      do_syscall_64+0xc6/0x1e0
[ 1014.539921][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1014.539921][   T10] 
[ 1014.541964][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1014.541964][   T10]      netdev_get_by_index+0x5e/0x80
[ 1014.541964][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1014.541964][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1014.541964][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1014.541964][   T10]      ipv6_add_addr+0x411/0x2000
[ 1014.541964][   T10]      inet6_addr_add+0x30e/0xa40
[ 1014.541964][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1014.541964][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1014.541964][   T10]      netlink_rcv_skb+0x130/0x360
[ 1014.541964][   T10]      netlink_unicast+0x449/0x710
[ 1014.541964][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1014.541964][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1014.541964][   T10]      ___sys_sendmsg+0xee/0x170
[ 1014.541964][   T10]      __sys_sendmsg+0xcd/0x170
[ 1014.541964][   T10]      do_syscall_64+0xc6/0x1e0
[ 1014.541964][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1014.541964][   T10] 
[ 1014.543994][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1014.543994][   T10]      netdev_get_by_index+0x5e/0x80
[ 1014.543994][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1014.543994][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1014.543994][   T10]      ip6_route_add+0x1c/0x140
[ 1014.543994][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1014.543994][   T10]      addrconf_add_dev+0xe2/0x170
[ 1014.543994][   T10]      inet6_addr_add+0x12f/0xa40
[ 1014.543994][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1014.543994][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1014.543994][   T10]      netlink_rcv_skb+0x130/0x360
[ 1014.543994][   T10]      netlink_unicast+0x449/0x710
[ 1014.543994][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1014.543994][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1014.543994][   T10]      ___sys_sendmsg+0xee/0x170
[ 1014.543994][   T10]      __sys_sendmsg+0xcd/0x170
[ 1014.543994][   T10]      do_syscall_64+0xc6/0x1e0
[ 1014.543994][   T10] 
[ 1014.545988][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1014.545988][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1014.545988][   T10]      ipv6_find_idev+0x102/0x170
[ 1014.545988][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1014.545988][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1014.545988][   T10]      netlink_rcv_skb+0x130/0x360
[ 1014.545988][   T10]      netlink_unicast+0x449/0x710
[ 1014.545988][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1014.545988][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1014.545988][   T10]      ___sys_sendmsg+0xee/0x170
[ 1014.545988][   T10]      __sys_sendmsg+0xcd/0x170
[ 1014.545988][   T10]      do_syscall_64+0xc6/0x1e0
[ 1014.545988][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1014.545988][   T10] 
[ 1014.547571][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1014.547571][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1014.547571][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1014.547571][   T10]      ipv6_find_idev+0x102/0x170
[ 1014.547571][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1014.547571][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1014.547571][   T10]      netlink_rcv_skb+0x130/0x360
[ 1014.547571][   T10]      netlink_unicast+0x449/0x710
[ 1014.547571][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1014.547571][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1014.547571][   T10]      ___sys_sendmsg+0xee/0x170
[ 1014.547571][   T10]      __sys_sendmsg+0xcd/0x170
[ 1014.547571][   T10]      do_syscall_64+0xc6/0x1e0
[ 1014.547571][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1014.547571][   T10] 
[ 1014.549293][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1014.549559][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1014.549559][   T10]      dst_init+0x84/0x4a0
[ 1014.549559][   T10]      dst_alloc+0x97/0x150
[ 1014.549559][   T10]      ip6_dst_alloc+0x23/0x90
[ 1014.549559][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1014.549559][   T10]      ip6_pol_route+0x56f/0x840
[ 1014.549559][   T10]      fib6_rule_lookup+0x456/0x630
[ 1014.549559][   T10]      ip6_route_input+0x59c/0xa50
[ 1014.549559][   T10]      ipv6_rcv+0x397/0x810
[ 1014.549559][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1014.549559][   T10]      process_backlog+0x101/0x620
[ 1014.549559][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1014.549559][   T10]      net_rx_action+0x495/0xbe0
[ 1014.549559][   T10]      __do_softirq+0x1b5/0x7f6
[ 1014.549559][   T10] 
[ 1014.551221][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1014.551221][   T10]      netdev_get_by_index+0x5e/0x80
[ 1014.551221][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1014.551221][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1014.551221][   T10]      ip6_route_add+0x1c/0x140
[ 1014.551221][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1014.551221][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1014.551221][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1014.551221][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1014.551221][   T10]      netlink_rcv_skb+0x130/0x360
[ 1014.551221][   T10]      netlink_unicast+0x449/0x710
[ 1014.551221][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1014.551221][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1014.551221][   T10]      ___sys_sendmsg+0xee/0x170
[ 1014.551221][   T10]      __sys_sendmsg+0xcd/0x170
[ 1014.551221][   T10]      do_syscall_64+0xc6/0x1e0
[ 1014.551221][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1014.551221][   T10] 
[ 1014.553243][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1014.553243][   T10]      netdev_get_by_index+0x5e/0x80
[ 1014.553243][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1014.553243][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1014.553243][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1014.553243][   T10]      ipv6_add_addr+0x411/0x2000
[ 1014.553243][   T10]      inet6_addr_add+0x30e/0xa40
[ 1014.553243][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1014.553243][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1014.553243][   T10]      netlink_rcv_skb+0x130/0x360
[ 1014.553243][   T10]      netlink_unicast+0x449/0x710
[ 1014.553243][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1014.553243][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1014.553243][   T10]      ___sys_sendmsg+0xee/0x170
[ 1014.553243][   T10]      __sys_sendmsg+0xcd/0x170
[ 1014.553243][   T10]      do_syscall_64+0xc6/0x1e0
[ 1014.553243][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1014.553243][   T10] 
[ 1014.555261][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1014.555261][   T10]      netdev_get_by_index+0x5e/0x80
[ 1014.555261][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1014.555261][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1014.555261][   T10]      ip6_route_add+0x1c/0x140
[ 1014.555261][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1014.555261][   T10]      addrconf_add_dev+0xe2/0x170
[ 1014.555261][   T10]      inet6_addr_add+0x12f/0xa40
[ 1014.555261][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1014.555261][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1014.555261][   T10]      netlink_rcv_skb+0x130/0x360
[ 1014.555261][   T10]      netlink_unicast+0x449/0x710
[ 1014.555261][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1014.555261][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1014.555261][   T10]      ___sys_sendmsg+0xee/0x170
[ 1014.555261][   T10]      __sys_sendmsg+0xcd/0x170
[ 1014.555261][   T10]      do_syscall_64+0xc6/0x1e0
[ 1014.555261][   T10] 
[ 1014.557243][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1014.557243][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1014.557243][   T10]      ipv6_find_idev+0x102/0x170
[ 1014.557243][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1014.557243][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1014.557243][   T10]      netlink_rcv_skb+0x130/0x360
[ 1014.557243][   T10]      netlink_unicast+0x449/0x710
[ 1014.557243][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1014.557243][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1014.557243][   T10]      ___sys_sendmsg+0xee/0x170
[ 1014.557243][   T10]      __sys_sendmsg+0xcd/0x170
[ 1014.557243][   T10]      do_syscall_64+0xc6/0x1e0
[ 1014.557243][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1014.557243][   T10] 
[ 1014.558807][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1014.558807][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1014.558807][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1014.558807][   T10]      ipv6_find_idev+0x102/0x170
[ 1014.558807][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1014.558807][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1014.558807][   T10]      netlink_rcv_skb+0x130/0x360
[ 1014.558807][   T10]      netlink_unicast+0x449/0x710
[ 1014.558807][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1014.558807][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1014.558807][   T10]      ___sys_sendmsg+0xee/0x170
[ 1014.558807][   T10]      __sys_sendmsg+0xcd/0x170
[ 1014.558807][   T10]      do_syscall_64+0xc6/0x1e0
[ 1014.558807][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1014.558807][   T10] 
[ 1024.801858][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1024.802625][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1024.802625][   T10]      dst_init+0x84/0x4a0
[ 1024.802625][   T10]      dst_alloc+0x97/0x150
[ 1024.802625][   T10]      ip6_dst_alloc+0x23/0x90
[ 1024.802625][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1024.802625][   T10]      ip6_pol_route+0x56f/0x840
[ 1024.802625][   T10]      fib6_rule_lookup+0x456/0x630
[ 1024.802625][   T10]      ip6_route_input+0x59c/0xa50
[ 1024.802625][   T10]      ipv6_rcv+0x397/0x810
[ 1024.802625][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1024.802625][   T10]      process_backlog+0x101/0x620
[ 1024.802625][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1024.802625][   T10]      net_rx_action+0x495/0xbe0
[ 1024.802625][   T10]      __do_softirq+0x1b5/0x7f6
[ 1024.802625][   T10] 
[ 1024.804315][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1024.804315][   T10]      netdev_get_by_index+0x5e/0x80
[ 1024.804315][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1024.804315][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1024.804315][   T10]      ip6_route_add+0x1c/0x140
[ 1024.804315][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1024.804315][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1024.804315][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1024.804315][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1024.804315][   T10]      netlink_rcv_skb+0x130/0x360
[ 1024.804315][   T10]      netlink_unicast+0x449/0x710
[ 1024.804315][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1024.804315][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1024.804315][   T10]      ___sys_sendmsg+0xee/0x170
[ 1024.804315][   T10]      __sys_sendmsg+0xcd/0x170
[ 1024.804315][   T10]      do_syscall_64+0xc6/0x1e0
[ 1024.804315][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1024.804315][   T10] 
[ 1024.806362][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1024.806362][   T10]      netdev_get_by_index+0x5e/0x80
[ 1024.806362][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1024.806362][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1024.806362][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1024.806362][   T10]      ipv6_add_addr+0x411/0x2000
[ 1024.806362][   T10]      inet6_addr_add+0x30e/0xa40
[ 1024.806362][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1024.806362][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1024.806362][   T10]      netlink_rcv_skb+0x130/0x360
[ 1024.806362][   T10]      netlink_unicast+0x449/0x710
[ 1024.806362][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1024.806362][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1024.806362][   T10]      ___sys_sendmsg+0xee/0x170
[ 1024.806362][   T10]      __sys_sendmsg+0xcd/0x170
[ 1024.806362][   T10]      do_syscall_64+0xc6/0x1e0
[ 1024.806362][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1024.806362][   T10] 
[ 1024.808399][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1024.808399][   T10]      netdev_get_by_index+0x5e/0x80
[ 1024.808399][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1024.808399][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1024.808399][   T10]      ip6_route_add+0x1c/0x140
[ 1024.808399][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1024.808399][   T10]      addrconf_add_dev+0xe2/0x170
[ 1024.808399][   T10]      inet6_addr_add+0x12f/0xa40
[ 1024.808399][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1024.808399][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1024.808399][   T10]      netlink_rcv_skb+0x130/0x360
[ 1024.808399][   T10]      netlink_unicast+0x449/0x710
[ 1024.808399][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1024.808399][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1024.808399][   T10]      ___sys_sendmsg+0xee/0x170
[ 1024.808399][   T10]      __sys_sendmsg+0xcd/0x170
[ 1024.808399][   T10]      do_syscall_64+0xc6/0x1e0
[ 1024.808399][   T10] 
[ 1024.810393][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1024.810393][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1024.810393][   T10]      ipv6_find_idev+0x102/0x170
[ 1024.810393][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1024.810393][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1024.810393][   T10]      netlink_rcv_skb+0x130/0x360
[ 1024.810393][   T10]      netlink_unicast+0x449/0x710
[ 1024.810393][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1024.810393][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1024.810393][   T10]      ___sys_sendmsg+0xee/0x170
[ 1024.810393][   T10]      __sys_sendmsg+0xcd/0x170
[ 1024.810393][   T10]      do_syscall_64+0xc6/0x1e0
[ 1024.810393][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1024.810393][   T10] 
[ 1024.811968][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1024.811968][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1024.811968][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1024.811968][   T10]      ipv6_find_idev+0x102/0x170
[ 1024.811968][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1024.811968][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1024.811968][   T10]      netlink_rcv_skb+0x130/0x360
[ 1024.811968][   T10]      netlink_unicast+0x449/0x710
[ 1024.811968][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1024.811968][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1024.811968][   T10]      ___sys_sendmsg+0xee/0x170
[ 1024.811968][   T10]      __sys_sendmsg+0xcd/0x170
[ 1024.811968][   T10]      do_syscall_64+0xc6/0x1e0
[ 1024.811968][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1024.811968][   T10] 
[ 1024.813698][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1024.813943][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1024.813943][   T10]      dst_init+0x84/0x4a0
[ 1024.813943][   T10]      dst_alloc+0x97/0x150
[ 1024.813943][   T10]      ip6_dst_alloc+0x23/0x90
[ 1024.813943][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1024.813943][   T10]      ip6_pol_route+0x56f/0x840
[ 1024.813943][   T10]      fib6_rule_lookup+0x456/0x630
[ 1024.813943][   T10]      ip6_route_input+0x59c/0xa50
[ 1024.813943][   T10]      ipv6_rcv+0x397/0x810
[ 1024.813943][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1024.813943][   T10]      process_backlog+0x101/0x620
[ 1024.813943][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1024.813943][   T10]      net_rx_action+0x495/0xbe0
[ 1024.813943][   T10]      __do_softirq+0x1b5/0x7f6
[ 1024.813943][   T10] 
[ 1024.815610][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1024.815610][   T10]      netdev_get_by_index+0x5e/0x80
[ 1024.815610][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1024.815610][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1024.815610][   T10]      ip6_route_add+0x1c/0x140
[ 1024.815610][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1024.815610][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1024.815610][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1024.815610][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1024.815610][   T10]      netlink_rcv_skb+0x130/0x360
[ 1024.815610][   T10]      netlink_unicast+0x449/0x710
[ 1024.815610][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1024.815610][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1024.815610][   T10]      ___sys_sendmsg+0xee/0x170
[ 1024.815610][   T10]      __sys_sendmsg+0xcd/0x170
[ 1024.815610][   T10]      do_syscall_64+0xc6/0x1e0
[ 1024.815610][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1024.815610][   T10] 
[ 1024.817649][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1024.817649][   T10]      netdev_get_by_index+0x5e/0x80
[ 1024.817649][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1024.817649][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1024.817649][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1024.817649][   T10]      ipv6_add_addr+0x411/0x2000
[ 1024.817649][   T10]      inet6_addr_add+0x30e/0xa40
[ 1024.817649][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1024.817649][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1024.817649][   T10]      netlink_rcv_skb+0x130/0x360
[ 1024.817649][   T10]      netlink_unicast+0x449/0x710
[ 1024.817649][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1024.817649][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1024.817649][   T10]      ___sys_sendmsg+0xee/0x170
[ 1024.817649][   T10]      __sys_sendmsg+0xcd/0x170
[ 1024.817649][   T10]      do_syscall_64+0xc6/0x1e0
[ 1024.817649][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1024.817649][   T10] 
[ 1024.819670][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1024.819670][   T10]      netdev_get_by_index+0x5e/0x80
[ 1024.819670][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1024.819670][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1024.819670][   T10]      ip6_route_add+0x1c/0x140
[ 1024.819670][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1024.819670][   T10]      addrconf_add_dev+0xe2/0x170
[ 1024.819670][   T10]      inet6_addr_add+0x12f/0xa40
[ 1024.819670][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1024.819670][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1024.819670][   T10]      netlink_rcv_skb+0x130/0x360
[ 1024.819670][   T10]      netlink_unicast+0x449/0x710
[ 1024.819670][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1024.819670][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1024.819670][   T10]      ___sys_sendmsg+0xee/0x170
[ 1024.819670][   T10]      __sys_sendmsg+0xcd/0x170
[ 1024.819670][   T10]      do_syscall_64+0xc6/0x1e0
[ 1024.819670][   T10] 
[ 1024.821782][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1024.821782][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1024.821782][   T10]      ipv6_find_idev+0x102/0x170
[ 1024.821782][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1024.821782][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1024.821782][   T10]      netlink_rcv_skb+0x130/0x360
[ 1024.821782][   T10]      netlink_unicast+0x449/0x710
[ 1024.821782][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1024.821782][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1024.821782][   T10]      ___sys_sendmsg+0xee/0x170
[ 1024.821782][   T10]      __sys_sendmsg+0xcd/0x170
[ 1024.821782][   T10]      do_syscall_64+0xc6/0x1e0
[ 1024.821782][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1024.821782][   T10] 
[ 1024.823337][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1024.823337][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1024.823337][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1024.823337][   T10]      ipv6_find_idev+0x102/0x170
[ 1024.823337][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1024.823337][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1024.823337][   T10]      netlink_rcv_skb+0x130/0x360
[ 1024.823337][   T10]      netlink_unicast+0x449/0x710
[ 1024.823337][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1024.823337][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1024.823337][   T10]      ___sys_sendmsg+0xee/0x170
[ 1024.823337][   T10]      __sys_sendmsg+0xcd/0x170
[ 1024.823337][   T10]      do_syscall_64+0xc6/0x1e0
[ 1024.823337][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1024.823337][   T10] 
[ 1035.065883][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1035.066581][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1035.066581][   T10]      dst_init+0x84/0x4a0
[ 1035.066581][   T10]      dst_alloc+0x97/0x150
[ 1035.066581][   T10]      ip6_dst_alloc+0x23/0x90
[ 1035.066581][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1035.066581][   T10]      ip6_pol_route+0x56f/0x840
[ 1035.066581][   T10]      fib6_rule_lookup+0x456/0x630
[ 1035.066581][   T10]      ip6_route_input+0x59c/0xa50
[ 1035.066581][   T10]      ipv6_rcv+0x397/0x810
[ 1035.066581][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1035.066581][   T10]      process_backlog+0x101/0x620
[ 1035.066581][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1035.066581][   T10]      net_rx_action+0x495/0xbe0
[ 1035.066581][   T10]      __do_softirq+0x1b5/0x7f6
[ 1035.066581][   T10] 
[ 1035.068298][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1035.068298][   T10]      netdev_get_by_index+0x5e/0x80
[ 1035.068298][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1035.068298][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1035.068298][   T10]      ip6_route_add+0x1c/0x140
[ 1035.068298][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1035.068298][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1035.068298][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1035.068298][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1035.068298][   T10]      netlink_rcv_skb+0x130/0x360
[ 1035.068298][   T10]      netlink_unicast+0x449/0x710
[ 1035.068298][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1035.068298][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1035.068298][   T10]      ___sys_sendmsg+0xee/0x170
[ 1035.068298][   T10]      __sys_sendmsg+0xcd/0x170
[ 1035.068298][   T10]      do_syscall_64+0xc6/0x1e0
[ 1035.068298][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1035.068298][   T10] 
[ 1035.070356][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1035.070356][   T10]      netdev_get_by_index+0x5e/0x80
[ 1035.070356][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1035.070356][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1035.070356][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1035.070356][   T10]      ipv6_add_addr+0x411/0x2000
[ 1035.070356][   T10]      inet6_addr_add+0x30e/0xa40
[ 1035.070356][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1035.070356][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1035.070356][   T10]      netlink_rcv_skb+0x130/0x360
[ 1035.070356][   T10]      netlink_unicast+0x449/0x710
[ 1035.070356][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1035.070356][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1035.070356][   T10]      ___sys_sendmsg+0xee/0x170
[ 1035.070356][   T10]      __sys_sendmsg+0xcd/0x170
[ 1035.070356][   T10]      do_syscall_64+0xc6/0x1e0
[ 1035.070356][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1035.070356][   T10] 
[ 1035.072397][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1035.072397][   T10]      netdev_get_by_index+0x5e/0x80
[ 1035.072397][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1035.072397][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1035.072397][   T10]      ip6_route_add+0x1c/0x140
[ 1035.072397][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1035.072397][   T10]      addrconf_add_dev+0xe2/0x170
[ 1035.072397][   T10]      inet6_addr_add+0x12f/0xa40
[ 1035.072397][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1035.072397][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1035.072397][   T10]      netlink_rcv_skb+0x130/0x360
[ 1035.072397][   T10]      netlink_unicast+0x449/0x710
[ 1035.072397][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1035.072397][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1035.072397][   T10]      ___sys_sendmsg+0xee/0x170
[ 1035.072397][   T10]      __sys_sendmsg+0xcd/0x170
[ 1035.072397][   T10]      do_syscall_64+0xc6/0x1e0
[ 1035.072397][   T10] 
[ 1035.074370][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1035.074370][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1035.074370][   T10]      ipv6_find_idev+0x102/0x170
[ 1035.074370][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1035.074370][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1035.074370][   T10]      netlink_rcv_skb+0x130/0x360
[ 1035.074370][   T10]      netlink_unicast+0x449/0x710
[ 1035.074370][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1035.074370][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1035.074370][   T10]      ___sys_sendmsg+0xee/0x170
[ 1035.074370][   T10]      __sys_sendmsg+0xcd/0x170
[ 1035.074370][   T10]      do_syscall_64+0xc6/0x1e0
[ 1035.074370][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1035.074370][   T10] 
[ 1035.075909][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1035.075909][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1035.075909][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1035.075909][   T10]      ipv6_find_idev+0x102/0x170
[ 1035.075909][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1035.075909][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1035.075909][   T10]      netlink_rcv_skb+0x130/0x360
[ 1035.075909][   T10]      netlink_unicast+0x449/0x710
[ 1035.075909][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1035.075909][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1035.075909][   T10]      ___sys_sendmsg+0xee/0x170
[ 1035.075909][   T10]      __sys_sendmsg+0xcd/0x170
[ 1035.075909][   T10]      do_syscall_64+0xc6/0x1e0
[ 1035.075909][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1035.075909][   T10] 
[ 1035.077600][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1035.077852][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1035.077852][   T10]      dst_init+0x84/0x4a0
[ 1035.077852][   T10]      dst_alloc+0x97/0x150
[ 1035.077852][   T10]      ip6_dst_alloc+0x23/0x90
[ 1035.077852][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1035.077852][   T10]      ip6_pol_route+0x56f/0x840
[ 1035.077852][   T10]      fib6_rule_lookup+0x456/0x630
[ 1035.077852][   T10]      ip6_route_input+0x59c/0xa50
[ 1035.077852][   T10]      ipv6_rcv+0x397/0x810
[ 1035.077852][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1035.077852][   T10]      process_backlog+0x101/0x620
[ 1035.077852][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1035.077852][   T10]      net_rx_action+0x495/0xbe0
[ 1035.077852][   T10]      __do_softirq+0x1b5/0x7f6
[ 1035.077852][   T10] 
[ 1035.079488][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1035.079488][   T10]      netdev_get_by_index+0x5e/0x80
[ 1035.079488][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1035.079488][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1035.079488][   T10]      ip6_route_add+0x1c/0x140
[ 1035.079488][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1035.079488][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1035.079488][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1035.079488][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1035.079488][   T10]      netlink_rcv_skb+0x130/0x360
[ 1035.079488][   T10]      netlink_unicast+0x449/0x710
[ 1035.079488][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1035.079488][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1035.079488][   T10]      ___sys_sendmsg+0xee/0x170
[ 1035.079488][   T10]      __sys_sendmsg+0xcd/0x170
[ 1035.079488][   T10]      do_syscall_64+0xc6/0x1e0
[ 1035.079488][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1035.079488][   T10] 
[ 1035.081484][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1035.081484][   T10]      netdev_get_by_index+0x5e/0x80
[ 1035.081484][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1035.081484][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1035.081484][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1035.081484][   T10]      ipv6_add_addr+0x411/0x2000
[ 1035.081484][   T10]      inet6_addr_add+0x30e/0xa40
[ 1035.081484][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1035.081484][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1035.081484][   T10]      netlink_rcv_skb+0x130/0x360
[ 1035.081484][   T10]      netlink_unicast+0x449/0x710
[ 1035.081484][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1035.081484][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1035.081484][   T10]      ___sys_sendmsg+0xee/0x170
[ 1035.081484][   T10]      __sys_sendmsg+0xcd/0x170
[ 1035.081484][   T10]      do_syscall_64+0xc6/0x1e0
[ 1035.081484][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1035.081484][   T10] 
[ 1035.083596][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1035.083596][   T10]      netdev_get_by_index+0x5e/0x80
[ 1035.083596][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1035.083596][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1035.083596][   T10]      ip6_route_add+0x1c/0x140
[ 1035.083596][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1035.083596][   T10]      addrconf_add_dev+0xe2/0x170
[ 1035.083596][   T10]      inet6_addr_add+0x12f/0xa40
[ 1035.083596][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1035.083596][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1035.083596][   T10]      netlink_rcv_skb+0x130/0x360
[ 1035.083596][   T10]      netlink_unicast+0x449/0x710
[ 1035.083596][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1035.083596][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1035.083596][   T10]      ___sys_sendmsg+0xee/0x170
[ 1035.083596][   T10]      __sys_sendmsg+0xcd/0x170
[ 1035.083596][   T10]      do_syscall_64+0xc6/0x1e0
[ 1035.083596][   T10] 
[ 1035.085574][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1035.085574][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1035.085574][   T10]      ipv6_find_idev+0x102/0x170
[ 1035.085574][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1035.085574][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1035.085574][   T10]      netlink_rcv_skb+0x130/0x360
[ 1035.085574][   T10]      netlink_unicast+0x449/0x710
[ 1035.085574][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1035.085574][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1035.085574][   T10]      ___sys_sendmsg+0xee/0x170
[ 1035.085574][   T10]      __sys_sendmsg+0xcd/0x170
[ 1035.085574][   T10]      do_syscall_64+0xc6/0x1e0
[ 1035.085574][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1035.085574][   T10] 
[ 1035.087108][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1035.087108][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1035.087108][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1035.087108][   T10]      ipv6_find_idev+0x102/0x170
[ 1035.087108][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1035.087108][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1035.087108][   T10]      netlink_rcv_skb+0x130/0x360
[ 1035.087108][   T10]      netlink_unicast+0x449/0x710
[ 1035.087108][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1035.087108][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1035.087108][   T10]      ___sys_sendmsg+0xee/0x170
[ 1035.087108][   T10]      __sys_sendmsg+0xcd/0x170
[ 1035.087108][   T10]      do_syscall_64+0xc6/0x1e0
[ 1035.087108][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1035.087108][   T10] 
[ 1045.329791][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1045.330228][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1045.330228][   T10]      dst_init+0x84/0x4a0
[ 1045.330228][   T10]      dst_alloc+0x97/0x150
[ 1045.330228][   T10]      ip6_dst_alloc+0x23/0x90
[ 1045.330228][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1045.330228][   T10]      ip6_pol_route+0x56f/0x840
[ 1045.330228][   T10]      fib6_rule_lookup+0x456/0x630
[ 1045.330228][   T10]      ip6_route_input+0x59c/0xa50
[ 1045.330228][   T10]      ipv6_rcv+0x397/0x810
[ 1045.330228][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1045.330228][   T10]      process_backlog+0x101/0x620
[ 1045.330228][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1045.330228][   T10]      net_rx_action+0x495/0xbe0
[ 1045.330228][   T10]      __do_softirq+0x1b5/0x7f6
[ 1045.330228][   T10] 
[ 1045.331942][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1045.331942][   T10]      netdev_get_by_index+0x5e/0x80
[ 1045.331942][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1045.331942][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1045.331942][   T10]      ip6_route_add+0x1c/0x140
[ 1045.331942][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1045.331942][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1045.331942][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1045.331942][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1045.331942][   T10]      netlink_rcv_skb+0x130/0x360
[ 1045.331942][   T10]      netlink_unicast+0x449/0x710
[ 1045.331942][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1045.331942][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1045.331942][   T10]      ___sys_sendmsg+0xee/0x170
[ 1045.331942][   T10]      __sys_sendmsg+0xcd/0x170
[ 1045.331942][   T10]      do_syscall_64+0xc6/0x1e0
[ 1045.331942][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1045.331942][   T10] 
[ 1045.333984][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1045.333984][   T10]      netdev_get_by_index+0x5e/0x80
[ 1045.333984][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1045.333984][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1045.333984][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1045.333984][   T10]      ipv6_add_addr+0x411/0x2000
[ 1045.333984][   T10]      inet6_addr_add+0x30e/0xa40
[ 1045.333984][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1045.333984][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1045.333984][   T10]      netlink_rcv_skb+0x130/0x360
[ 1045.333984][   T10]      netlink_unicast+0x449/0x710
[ 1045.333984][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1045.333984][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1045.333984][   T10]      ___sys_sendmsg+0xee/0x170
[ 1045.333984][   T10]      __sys_sendmsg+0xcd/0x170
[ 1045.333984][   T10]      do_syscall_64+0xc6/0x1e0
[ 1045.333984][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1045.333984][   T10] 
[ 1045.336014][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1045.336014][   T10]      netdev_get_by_index+0x5e/0x80
[ 1045.336014][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1045.336014][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1045.336014][   T10]      ip6_route_add+0x1c/0x140
[ 1045.336014][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1045.336014][   T10]      addrconf_add_dev+0xe2/0x170
[ 1045.336014][   T10]      inet6_addr_add+0x12f/0xa40
[ 1045.336014][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1045.336014][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1045.336014][   T10]      netlink_rcv_skb+0x130/0x360
[ 1045.336014][   T10]      netlink_unicast+0x449/0x710
[ 1045.336014][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1045.336014][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1045.336014][   T10]      ___sys_sendmsg+0xee/0x170
[ 1045.336014][   T10]      __sys_sendmsg+0xcd/0x170
[ 1045.336014][   T10]      do_syscall_64+0xc6/0x1e0
[ 1045.336014][   T10] 
[ 1045.337986][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1045.337986][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1045.337986][   T10]      ipv6_find_idev+0x102/0x170
[ 1045.337986][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1045.337986][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1045.337986][   T10]      netlink_rcv_skb+0x130/0x360
[ 1045.337986][   T10]      netlink_unicast+0x449/0x710
[ 1045.337986][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1045.337986][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1045.337986][   T10]      ___sys_sendmsg+0xee/0x170
[ 1045.337986][   T10]      __sys_sendmsg+0xcd/0x170
[ 1045.337986][   T10]      do_syscall_64+0xc6/0x1e0
[ 1045.337986][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1045.337986][   T10] 
[ 1045.339529][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1045.339529][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1045.339529][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1045.339529][   T10]      ipv6_find_idev+0x102/0x170
[ 1045.339529][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1045.339529][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1045.339529][   T10]      netlink_rcv_skb+0x130/0x360
[ 1045.339529][   T10]      netlink_unicast+0x449/0x710
[ 1045.339529][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1045.339529][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1045.339529][   T10]      ___sys_sendmsg+0xee/0x170
[ 1045.339529][   T10]      __sys_sendmsg+0xcd/0x170
[ 1045.339529][   T10]      do_syscall_64+0xc6/0x1e0
[ 1045.339529][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1045.339529][   T10] 
[ 1045.341219][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1045.341457][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1045.341457][   T10]      dst_init+0x84/0x4a0
[ 1045.341457][   T10]      dst_alloc+0x97/0x150
[ 1045.341457][   T10]      ip6_dst_alloc+0x23/0x90
[ 1045.341457][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1045.341457][   T10]      ip6_pol_route+0x56f/0x840
[ 1045.341457][   T10]      fib6_rule_lookup+0x456/0x630
[ 1045.341457][   T10]      ip6_route_input+0x59c/0xa50
[ 1045.341457][   T10]      ipv6_rcv+0x397/0x810
[ 1045.341457][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1045.341457][   T10]      process_backlog+0x101/0x620
[ 1045.341457][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1045.341457][   T10]      net_rx_action+0x495/0xbe0
[ 1045.341457][   T10]      __do_softirq+0x1b5/0x7f6
[ 1045.341457][   T10] 
[ 1045.343094][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1045.343094][   T10]      netdev_get_by_index+0x5e/0x80
[ 1045.343094][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1045.343094][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1045.343094][   T10]      ip6_route_add+0x1c/0x140
[ 1045.343094][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1045.343094][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1045.343094][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1045.343094][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1045.343094][   T10]      netlink_rcv_skb+0x130/0x360
[ 1045.343094][   T10]      netlink_unicast+0x449/0x710
[ 1045.343094][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1045.343094][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1045.343094][   T10]      ___sys_sendmsg+0xee/0x170
[ 1045.343094][   T10]      __sys_sendmsg+0xcd/0x170
[ 1045.343094][   T10]      do_syscall_64+0xc6/0x1e0
[ 1045.343094][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1045.343094][   T10] 
[ 1045.345092][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1045.345092][   T10]      netdev_get_by_index+0x5e/0x80
[ 1045.345092][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1045.345092][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1045.345092][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1045.345092][   T10]      ipv6_add_addr+0x411/0x2000
[ 1045.345092][   T10]      inet6_addr_add+0x30e/0xa40
[ 1045.345092][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1045.345092][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1045.345092][   T10]      netlink_rcv_skb+0x130/0x360
[ 1045.345092][   T10]      netlink_unicast+0x449/0x710
[ 1045.345092][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1045.345092][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1045.345092][   T10]      ___sys_sendmsg+0xee/0x170
[ 1045.345092][   T10]      __sys_sendmsg+0xcd/0x170
[ 1045.345092][   T10]      do_syscall_64+0xc6/0x1e0
[ 1045.345092][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1045.345092][   T10] 
[ 1045.347097][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1045.347097][   T10]      netdev_get_by_index+0x5e/0x80
[ 1045.347097][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1045.347097][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1045.347097][   T10]      ip6_route_add+0x1c/0x140
[ 1045.347097][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1045.347097][   T10]      addrconf_add_dev+0xe2/0x170
[ 1045.347097][   T10]      inet6_addr_add+0x12f/0xa40
[ 1045.347097][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1045.347097][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1045.347097][   T10]      netlink_rcv_skb+0x130/0x360
[ 1045.347097][   T10]      netlink_unicast+0x449/0x710
[ 1045.347097][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1045.347097][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1045.347097][   T10]      ___sys_sendmsg+0xee/0x170
[ 1045.347097][   T10]      __sys_sendmsg+0xcd/0x170
[ 1045.347097][   T10]      do_syscall_64+0xc6/0x1e0
[ 1045.347097][   T10] 
[ 1045.349064][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1045.349064][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1045.349064][   T10]      ipv6_find_idev+0x102/0x170
[ 1045.349064][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1045.349064][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1045.349064][   T10]      netlink_rcv_skb+0x130/0x360
[ 1045.349064][   T10]      netlink_unicast+0x449/0x710
[ 1045.349064][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1045.349064][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1045.349064][   T10]      ___sys_sendmsg+0xee/0x170
[ 1045.349064][   T10]      __sys_sendmsg+0xcd/0x170
[ 1045.349064][   T10]      do_syscall_64+0xc6/0x1e0
[ 1045.349064][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1045.349064][   T10] 
[ 1045.350595][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1045.350595][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1045.350595][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1045.350595][   T10]      ipv6_find_idev+0x102/0x170
[ 1045.350595][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1045.350595][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1045.350595][   T10]      netlink_rcv_skb+0x130/0x360
[ 1045.350595][   T10]      netlink_unicast+0x449/0x710
[ 1045.350595][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1045.350595][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1045.350595][   T10]      ___sys_sendmsg+0xee/0x170
[ 1045.350595][   T10]      __sys_sendmsg+0xcd/0x170
[ 1045.350595][   T10]      do_syscall_64+0xc6/0x1e0
[ 1045.350595][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1045.350595][   T10] 
[ 1055.593848][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1055.594339][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1055.594339][   T10]      dst_init+0x84/0x4a0
[ 1055.594339][   T10]      dst_alloc+0x97/0x150
[ 1055.594339][   T10]      ip6_dst_alloc+0x23/0x90
[ 1055.594339][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1055.594339][   T10]      ip6_pol_route+0x56f/0x840
[ 1055.594339][   T10]      fib6_rule_lookup+0x456/0x630
[ 1055.594339][   T10]      ip6_route_input+0x59c/0xa50
[ 1055.594339][   T10]      ipv6_rcv+0x397/0x810
[ 1055.594339][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1055.594339][   T10]      process_backlog+0x101/0x620
[ 1055.594339][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1055.594339][   T10]      net_rx_action+0x495/0xbe0
[ 1055.594339][   T10]      __do_softirq+0x1b5/0x7f6
[ 1055.594339][   T10] 
[ 1055.596035][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1055.596035][   T10]      netdev_get_by_index+0x5e/0x80
[ 1055.596035][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1055.596035][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1055.596035][   T10]      ip6_route_add+0x1c/0x140
[ 1055.596035][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1055.596035][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1055.596035][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1055.596035][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1055.596035][   T10]      netlink_rcv_skb+0x130/0x360
[ 1055.596035][   T10]      netlink_unicast+0x449/0x710
[ 1055.596035][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1055.596035][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1055.596035][   T10]      ___sys_sendmsg+0xee/0x170
[ 1055.596035][   T10]      __sys_sendmsg+0xcd/0x170
[ 1055.596035][   T10]      do_syscall_64+0xc6/0x1e0
[ 1055.596035][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1055.596035][   T10] 
[ 1055.598071][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1055.598071][   T10]      netdev_get_by_index+0x5e/0x80
[ 1055.598071][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1055.598071][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1055.598071][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1055.598071][   T10]      ipv6_add_addr+0x411/0x2000
[ 1055.598071][   T10]      inet6_addr_add+0x30e/0xa40
[ 1055.598071][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1055.598071][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1055.598071][   T10]      netlink_rcv_skb+0x130/0x360
[ 1055.598071][   T10]      netlink_unicast+0x449/0x710
[ 1055.598071][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1055.598071][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1055.598071][   T10]      ___sys_sendmsg+0xee/0x170
[ 1055.598071][   T10]      __sys_sendmsg+0xcd/0x170
[ 1055.598071][   T10]      do_syscall_64+0xc6/0x1e0
[ 1055.598071][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1055.598071][   T10] 
[ 1055.600123][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1055.600123][   T10]      netdev_get_by_index+0x5e/0x80
[ 1055.600123][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1055.600123][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1055.600123][   T10]      ip6_route_add+0x1c/0x140
[ 1055.600123][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1055.600123][   T10]      addrconf_add_dev+0xe2/0x170
[ 1055.600123][   T10]      inet6_addr_add+0x12f/0xa40
[ 1055.600123][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1055.600123][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1055.600123][   T10]      netlink_rcv_skb+0x130/0x360
[ 1055.600123][   T10]      netlink_unicast+0x449/0x710
[ 1055.600123][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1055.600123][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1055.600123][   T10]      ___sys_sendmsg+0xee/0x170
[ 1055.600123][   T10]      __sys_sendmsg+0xcd/0x170
[ 1055.600123][   T10]      do_syscall_64+0xc6/0x1e0
[ 1055.600123][   T10] 
[ 1055.602096][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1055.602096][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1055.602096][   T10]      ipv6_find_idev+0x102/0x170
[ 1055.602096][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1055.602096][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1055.602096][   T10]      netlink_rcv_skb+0x130/0x360
[ 1055.602096][   T10]      netlink_unicast+0x449/0x710
[ 1055.602096][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1055.602096][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1055.602096][   T10]      ___sys_sendmsg+0xee/0x170
[ 1055.602096][   T10]      __sys_sendmsg+0xcd/0x170
[ 1055.602096][   T10]      do_syscall_64+0xc6/0x1e0
[ 1055.602096][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1055.602096][   T10] 
[ 1055.603631][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1055.603631][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1055.603631][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1055.603631][   T10]      ipv6_find_idev+0x102/0x170
[ 1055.603631][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1055.603631][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1055.603631][   T10]      netlink_rcv_skb+0x130/0x360
[ 1055.603631][   T10]      netlink_unicast+0x449/0x710
[ 1055.603631][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1055.603631][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1055.603631][   T10]      ___sys_sendmsg+0xee/0x170
[ 1055.603631][   T10]      __sys_sendmsg+0xcd/0x170
[ 1055.603631][   T10]      do_syscall_64+0xc6/0x1e0
[ 1055.603631][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1055.603631][   T10] 
[ 1055.605332][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1055.605580][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1055.605580][   T10]      dst_init+0x84/0x4a0
[ 1055.605580][   T10]      dst_alloc+0x97/0x150
[ 1055.605580][   T10]      ip6_dst_alloc+0x23/0x90
[ 1055.605580][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1055.605580][   T10]      ip6_pol_route+0x56f/0x840
[ 1055.605580][   T10]      fib6_rule_lookup+0x456/0x630
[ 1055.605580][   T10]      ip6_route_input+0x59c/0xa50
[ 1055.605580][   T10]      ipv6_rcv+0x397/0x810
[ 1055.605580][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1055.605580][   T10]      process_backlog+0x101/0x620
[ 1055.605580][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1055.605580][   T10]      net_rx_action+0x495/0xbe0
[ 1055.605580][   T10]      __do_softirq+0x1b5/0x7f6
[ 1055.605580][   T10] 
[ 1055.607216][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1055.607216][   T10]      netdev_get_by_index+0x5e/0x80
[ 1055.607216][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1055.607216][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1055.607216][   T10]      ip6_route_add+0x1c/0x140
[ 1055.607216][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1055.607216][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1055.607216][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1055.607216][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1055.607216][   T10]      netlink_rcv_skb+0x130/0x360
[ 1055.607216][   T10]      netlink_unicast+0x449/0x710
[ 1055.607216][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1055.607216][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1055.607216][   T10]      ___sys_sendmsg+0xee/0x170
[ 1055.607216][   T10]      __sys_sendmsg+0xcd/0x170
[ 1055.607216][   T10]      do_syscall_64+0xc6/0x1e0
[ 1055.607216][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1055.607216][   T10] 
[ 1055.609208][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1055.609208][   T10]      netdev_get_by_index+0x5e/0x80
[ 1055.609208][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1055.609208][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1055.609208][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1055.609208][   T10]      ipv6_add_addr+0x411/0x2000
[ 1055.609208][   T10]      inet6_addr_add+0x30e/0xa40
[ 1055.609208][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1055.609208][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1055.609208][   T10]      netlink_rcv_skb+0x130/0x360
[ 1055.609208][   T10]      netlink_unicast+0x449/0x710
[ 1055.609208][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1055.609208][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1055.609208][   T10]      ___sys_sendmsg+0xee/0x170
[ 1055.609208][   T10]      __sys_sendmsg+0xcd/0x170
[ 1055.609208][   T10]      do_syscall_64+0xc6/0x1e0
[ 1055.609208][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1055.609208][   T10] 
[ 1055.611207][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1055.611207][   T10]      netdev_get_by_index+0x5e/0x80
[ 1055.611207][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1055.611207][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1055.611207][   T10]      ip6_route_add+0x1c/0x140
[ 1055.611207][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1055.611207][   T10]      addrconf_add_dev+0xe2/0x170
[ 1055.611207][   T10]      inet6_addr_add+0x12f/0xa40
[ 1055.611207][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1055.611207][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1055.611207][   T10]      netlink_rcv_skb+0x130/0x360
[ 1055.611207][   T10]      netlink_unicast+0x449/0x710
[ 1055.611207][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1055.611207][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1055.611207][   T10]      ___sys_sendmsg+0xee/0x170
[ 1055.611207][   T10]      __sys_sendmsg+0xcd/0x170
[ 1055.611207][   T10]      do_syscall_64+0xc6/0x1e0
[ 1055.611207][   T10] 
[ 1055.613174][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1055.613174][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1055.613174][   T10]      ipv6_find_idev+0x102/0x170
[ 1055.613174][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1055.613174][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1055.613174][   T10]      netlink_rcv_skb+0x130/0x360
[ 1055.613174][   T10]      netlink_unicast+0x449/0x710
[ 1055.613174][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1055.613174][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1055.613174][   T10]      ___sys_sendmsg+0xee/0x170
[ 1055.613174][   T10]      __sys_sendmsg+0xcd/0x170
[ 1055.613174][   T10]      do_syscall_64+0xc6/0x1e0
[ 1055.613174][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1055.613174][   T10] 
[ 1055.614714][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1055.614714][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1055.614714][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1055.614714][   T10]      ipv6_find_idev+0x102/0x170
[ 1055.614714][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1055.614714][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1055.614714][   T10]      netlink_rcv_skb+0x130/0x360
[ 1055.614714][   T10]      netlink_unicast+0x449/0x710
[ 1055.614714][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1055.614714][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1055.614714][   T10]      ___sys_sendmsg+0xee/0x170
[ 1055.614714][   T10]      __sys_sendmsg+0xcd/0x170
[ 1055.614714][   T10]      do_syscall_64+0xc6/0x1e0
[ 1055.614714][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1055.614714][   T10] 
[ 1065.857854][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1065.858544][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1065.858544][   T10]      dst_init+0x84/0x4a0
[ 1065.858544][   T10]      dst_alloc+0x97/0x150
[ 1065.858544][   T10]      ip6_dst_alloc+0x23/0x90
[ 1065.858544][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1065.858544][   T10]      ip6_pol_route+0x56f/0x840
[ 1065.858544][   T10]      fib6_rule_lookup+0x456/0x630
[ 1065.858544][   T10]      ip6_route_input+0x59c/0xa50
[ 1065.858544][   T10]      ipv6_rcv+0x397/0x810
[ 1065.858544][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1065.858544][   T10]      process_backlog+0x101/0x620
[ 1065.858544][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1065.858544][   T10]      net_rx_action+0x495/0xbe0
[ 1065.858544][   T10]      __do_softirq+0x1b5/0x7f6
[ 1065.858544][   T10] 
[ 1065.860243][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1065.860243][   T10]      netdev_get_by_index+0x5e/0x80
[ 1065.860243][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1065.860243][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1065.860243][   T10]      ip6_route_add+0x1c/0x140
[ 1065.860243][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1065.860243][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1065.860243][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1065.860243][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1065.860243][   T10]      netlink_rcv_skb+0x130/0x360
[ 1065.860243][   T10]      netlink_unicast+0x449/0x710
[ 1065.860243][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1065.860243][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1065.860243][   T10]      ___sys_sendmsg+0xee/0x170
[ 1065.860243][   T10]      __sys_sendmsg+0xcd/0x170
[ 1065.860243][   T10]      do_syscall_64+0xc6/0x1e0
[ 1065.860243][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1065.860243][   T10] 
[ 1065.862281][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1065.862281][   T10]      netdev_get_by_index+0x5e/0x80
[ 1065.862281][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1065.862281][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1065.862281][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1065.862281][   T10]      ipv6_add_addr+0x411/0x2000
[ 1065.862281][   T10]      inet6_addr_add+0x30e/0xa40
[ 1065.862281][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1065.862281][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1065.862281][   T10]      netlink_rcv_skb+0x130/0x360
[ 1065.862281][   T10]      netlink_unicast+0x449/0x710
[ 1065.862281][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1065.862281][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1065.862281][   T10]      ___sys_sendmsg+0xee/0x170
[ 1065.862281][   T10]      __sys_sendmsg+0xcd/0x170
[ 1065.862281][   T10]      do_syscall_64+0xc6/0x1e0
[ 1065.862281][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1065.862281][   T10] 
[ 1065.864292][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1065.864292][   T10]      netdev_get_by_index+0x5e/0x80
[ 1065.864292][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1065.864292][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1065.864292][   T10]      ip6_route_add+0x1c/0x140
[ 1065.864292][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1065.864292][   T10]      addrconf_add_dev+0xe2/0x170
[ 1065.864292][   T10]      inet6_addr_add+0x12f/0xa40
[ 1065.864292][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1065.864292][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1065.864292][   T10]      netlink_rcv_skb+0x130/0x360
[ 1065.864292][   T10]      netlink_unicast+0x449/0x710
[ 1065.864292][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1065.864292][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1065.864292][   T10]      ___sys_sendmsg+0xee/0x170
[ 1065.864292][   T10]      __sys_sendmsg+0xcd/0x170
[ 1065.864292][   T10]      do_syscall_64+0xc6/0x1e0
[ 1065.864292][   T10] 
[ 1065.866273][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1065.866273][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1065.866273][   T10]      ipv6_find_idev+0x102/0x170
[ 1065.866273][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1065.866273][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1065.866273][   T10]      netlink_rcv_skb+0x130/0x360
[ 1065.866273][   T10]      netlink_unicast+0x449/0x710
[ 1065.866273][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1065.866273][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1065.866273][   T10]      ___sys_sendmsg+0xee/0x170
[ 1065.866273][   T10]      __sys_sendmsg+0xcd/0x170
[ 1065.866273][   T10]      do_syscall_64+0xc6/0x1e0
[ 1065.866273][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1065.866273][   T10] 
[ 1065.867826][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1065.867826][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1065.867826][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1065.867826][   T10]      ipv6_find_idev+0x102/0x170
[ 1065.867826][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1065.867826][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1065.867826][   T10]      netlink_rcv_skb+0x130/0x360
[ 1065.867826][   T10]      netlink_unicast+0x449/0x710
[ 1065.867826][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1065.867826][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1065.867826][   T10]      ___sys_sendmsg+0xee/0x170
[ 1065.867826][   T10]      __sys_sendmsg+0xcd/0x170
[ 1065.867826][   T10]      do_syscall_64+0xc6/0x1e0
[ 1065.867826][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1065.867826][   T10] 
[ 1065.869508][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1065.869767][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1065.869767][   T10]      dst_init+0x84/0x4a0
[ 1065.869767][   T10]      dst_alloc+0x97/0x150
[ 1065.869767][   T10]      ip6_dst_alloc+0x23/0x90
[ 1065.869767][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1065.869767][   T10]      ip6_pol_route+0x56f/0x840
[ 1065.869767][   T10]      fib6_rule_lookup+0x456/0x630
[ 1065.869767][   T10]      ip6_route_input+0x59c/0xa50
[ 1065.869767][   T10]      ipv6_rcv+0x397/0x810
[ 1065.869767][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1065.869767][   T10]      process_backlog+0x101/0x620
[ 1065.869767][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1065.869767][   T10]      net_rx_action+0x495/0xbe0
[ 1065.869767][   T10]      __do_softirq+0x1b5/0x7f6
[ 1065.869767][   T10] 
[ 1065.871406][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1065.871406][   T10]      netdev_get_by_index+0x5e/0x80
[ 1065.871406][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1065.871406][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1065.871406][   T10]      ip6_route_add+0x1c/0x140
[ 1065.871406][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1065.871406][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1065.871406][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1065.871406][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1065.871406][   T10]      netlink_rcv_skb+0x130/0x360
[ 1065.871406][   T10]      netlink_unicast+0x449/0x710
[ 1065.871406][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1065.871406][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1065.871406][   T10]      ___sys_sendmsg+0xee/0x170
[ 1065.871406][   T10]      __sys_sendmsg+0xcd/0x170
[ 1065.871406][   T10]      do_syscall_64+0xc6/0x1e0
[ 1065.871406][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1065.871406][   T10] 
[ 1065.873423][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1065.873423][   T10]      netdev_get_by_index+0x5e/0x80
[ 1065.873423][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1065.873423][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1065.873423][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1065.873423][   T10]      ipv6_add_addr+0x411/0x2000
[ 1065.873423][   T10]      inet6_addr_add+0x30e/0xa40
[ 1065.873423][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1065.873423][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1065.873423][   T10]      netlink_rcv_skb+0x130/0x360
[ 1065.873423][   T10]      netlink_unicast+0x449/0x710
[ 1065.873423][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1065.873423][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1065.873423][   T10]      ___sys_sendmsg+0xee/0x170
[ 1065.873423][   T10]      __sys_sendmsg+0xcd/0x170
[ 1065.873423][   T10]      do_syscall_64+0xc6/0x1e0
[ 1065.873423][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1065.873423][   T10] 
[ 1065.875515][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1065.875515][   T10]      netdev_get_by_index+0x5e/0x80
[ 1065.875515][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1065.875515][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1065.875515][   T10]      ip6_route_add+0x1c/0x140
[ 1065.875515][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1065.875515][   T10]      addrconf_add_dev+0xe2/0x170
[ 1065.875515][   T10]      inet6_addr_add+0x12f/0xa40
[ 1065.875515][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1065.875515][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1065.875515][   T10]      netlink_rcv_skb+0x130/0x360
[ 1065.875515][   T10]      netlink_unicast+0x449/0x710
[ 1065.875515][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1065.875515][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1065.875515][   T10]      ___sys_sendmsg+0xee/0x170
[ 1065.875515][   T10]      __sys_sendmsg+0xcd/0x170
[ 1065.875515][   T10]      do_syscall_64+0xc6/0x1e0
[ 1065.875515][   T10] 
[ 1065.877486][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1065.877486][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1065.877486][   T10]      ipv6_find_idev+0x102/0x170
[ 1065.877486][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1065.877486][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1065.877486][   T10]      netlink_rcv_skb+0x130/0x360
[ 1065.877486][   T10]      netlink_unicast+0x449/0x710
[ 1065.877486][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1065.877486][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1065.877486][   T10]      ___sys_sendmsg+0xee/0x170
[ 1065.877486][   T10]      __sys_sendmsg+0xcd/0x170
[ 1065.877486][   T10]      do_syscall_64+0xc6/0x1e0
[ 1065.877486][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1065.877486][   T10] 
[ 1065.879026][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1065.879026][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1065.879026][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1065.879026][   T10]      ipv6_find_idev+0x102/0x170
[ 1065.879026][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1065.879026][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1065.879026][   T10]      netlink_rcv_skb+0x130/0x360
[ 1065.879026][   T10]      netlink_unicast+0x449/0x710
[ 1065.879026][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1065.879026][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1065.879026][   T10]      ___sys_sendmsg+0xee/0x170
[ 1065.879026][   T10]      __sys_sendmsg+0xcd/0x170
[ 1065.879026][   T10]      do_syscall_64+0xc6/0x1e0
[ 1065.879026][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1065.879026][   T10] 
[ 1076.121892][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1076.122810][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1076.122810][   T10]      dst_init+0x84/0x4a0
[ 1076.122810][   T10]      dst_alloc+0x97/0x150
[ 1076.122810][   T10]      ip6_dst_alloc+0x23/0x90
[ 1076.122810][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1076.122810][   T10]      ip6_pol_route+0x56f/0x840
[ 1076.122810][   T10]      fib6_rule_lookup+0x456/0x630
[ 1076.122810][   T10]      ip6_route_input+0x59c/0xa50
[ 1076.122810][   T10]      ipv6_rcv+0x397/0x810
[ 1076.122810][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1076.122810][   T10]      process_backlog+0x101/0x620
[ 1076.122810][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1076.122810][   T10]      net_rx_action+0x495/0xbe0
[ 1076.122810][   T10]      __do_softirq+0x1b5/0x7f6
[ 1076.122810][   T10] 
[ 1076.124505][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1076.124505][   T10]      netdev_get_by_index+0x5e/0x80
[ 1076.124505][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1076.124505][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1076.124505][   T10]      ip6_route_add+0x1c/0x140
[ 1076.124505][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1076.124505][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1076.124505][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1076.124505][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1076.124505][   T10]      netlink_rcv_skb+0x130/0x360
[ 1076.124505][   T10]      netlink_unicast+0x449/0x710
[ 1076.124505][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1076.124505][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1076.124505][   T10]      ___sys_sendmsg+0xee/0x170
[ 1076.124505][   T10]      __sys_sendmsg+0xcd/0x170
[ 1076.124505][   T10]      do_syscall_64+0xc6/0x1e0
[ 1076.124505][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1076.124505][   T10] 
[ 1076.126524][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1076.126524][   T10]      netdev_get_by_index+0x5e/0x80
[ 1076.126524][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1076.126524][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1076.126524][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1076.126524][   T10]      ipv6_add_addr+0x411/0x2000
[ 1076.126524][   T10]      inet6_addr_add+0x30e/0xa40
[ 1076.126524][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1076.126524][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1076.126524][   T10]      netlink_rcv_skb+0x130/0x360
[ 1076.126524][   T10]      netlink_unicast+0x449/0x710
[ 1076.126524][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1076.126524][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1076.126524][   T10]      ___sys_sendmsg+0xee/0x170
[ 1076.126524][   T10]      __sys_sendmsg+0xcd/0x170
[ 1076.126524][   T10]      do_syscall_64+0xc6/0x1e0
[ 1076.126524][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1076.126524][   T10] 
[ 1076.128553][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1076.128553][   T10]      netdev_get_by_index+0x5e/0x80
[ 1076.128553][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1076.128553][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1076.128553][   T10]      ip6_route_add+0x1c/0x140
[ 1076.128553][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1076.128553][   T10]      addrconf_add_dev+0xe2/0x170
[ 1076.128553][   T10]      inet6_addr_add+0x12f/0xa40
[ 1076.128553][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1076.128553][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1076.128553][   T10]      netlink_rcv_skb+0x130/0x360
[ 1076.128553][   T10]      netlink_unicast+0x449/0x710
[ 1076.128553][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1076.128553][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1076.128553][   T10]      ___sys_sendmsg+0xee/0x170
[ 1076.128553][   T10]      __sys_sendmsg+0xcd/0x170
[ 1076.128553][   T10]      do_syscall_64+0xc6/0x1e0
[ 1076.128553][   T10] 
[ 1076.130529][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1076.130529][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1076.130529][   T10]      ipv6_find_idev+0x102/0x170
[ 1076.130529][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1076.130529][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1076.130529][   T10]      netlink_rcv_skb+0x130/0x360
[ 1076.130529][   T10]      netlink_unicast+0x449/0x710
[ 1076.130529][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1076.130529][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1076.130529][   T10]      ___sys_sendmsg+0xee/0x170
[ 1076.130529][   T10]      __sys_sendmsg+0xcd/0x170
[ 1076.130529][   T10]      do_syscall_64+0xc6/0x1e0
[ 1076.130529][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1076.130529][   T10] 
[ 1076.132086][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1076.132086][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1076.132086][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1076.132086][   T10]      ipv6_find_idev+0x102/0x170
[ 1076.132086][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1076.132086][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1076.132086][   T10]      netlink_rcv_skb+0x130/0x360
[ 1076.132086][   T10]      netlink_unicast+0x449/0x710
[ 1076.132086][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1076.132086][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1076.132086][   T10]      ___sys_sendmsg+0xee/0x170
[ 1076.132086][   T10]      __sys_sendmsg+0xcd/0x170
[ 1076.132086][   T10]      do_syscall_64+0xc6/0x1e0
[ 1076.132086][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1076.132086][   T10] 
[ 1076.133782][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1076.134029][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1076.134029][   T10]      dst_init+0x84/0x4a0
[ 1076.134029][   T10]      dst_alloc+0x97/0x150
[ 1076.134029][   T10]      ip6_dst_alloc+0x23/0x90
[ 1076.134029][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1076.134029][   T10]      ip6_pol_route+0x56f/0x840
[ 1076.134029][   T10]      fib6_rule_lookup+0x456/0x630
[ 1076.134029][   T10]      ip6_route_input+0x59c/0xa50
[ 1076.134029][   T10]      ipv6_rcv+0x397/0x810
[ 1076.134029][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1076.134029][   T10]      process_backlog+0x101/0x620
[ 1076.134029][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1076.134029][   T10]      net_rx_action+0x495/0xbe0
[ 1076.134029][   T10]      __do_softirq+0x1b5/0x7f6
[ 1076.134029][   T10] 
[ 1076.135675][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1076.135675][   T10]      netdev_get_by_index+0x5e/0x80
[ 1076.135675][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1076.135675][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1076.135675][   T10]      ip6_route_add+0x1c/0x140
[ 1076.135675][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1076.135675][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1076.135675][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1076.135675][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1076.135675][   T10]      netlink_rcv_skb+0x130/0x360
[ 1076.135675][   T10]      netlink_unicast+0x449/0x710
[ 1076.135675][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1076.135675][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1076.135675][   T10]      ___sys_sendmsg+0xee/0x170
[ 1076.135675][   T10]      __sys_sendmsg+0xcd/0x170
[ 1076.135675][   T10]      do_syscall_64+0xc6/0x1e0
[ 1076.135675][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1076.135675][   T10] 
[ 1076.137704][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1076.137704][   T10]      netdev_get_by_index+0x5e/0x80
[ 1076.137704][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1076.137704][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1076.137704][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1076.137704][   T10]      ipv6_add_addr+0x411/0x2000
[ 1076.137704][   T10]      inet6_addr_add+0x30e/0xa40
[ 1076.137704][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1076.137704][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1076.137704][   T10]      netlink_rcv_skb+0x130/0x360
[ 1076.137704][   T10]      netlink_unicast+0x449/0x710
[ 1076.137704][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1076.137704][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1076.137704][   T10]      ___sys_sendmsg+0xee/0x170
[ 1076.137704][   T10]      __sys_sendmsg+0xcd/0x170
[ 1076.137704][   T10]      do_syscall_64+0xc6/0x1e0
[ 1076.137704][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1076.137704][   T10] 
[ 1076.139701][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1076.139701][   T10]      netdev_get_by_index+0x5e/0x80
[ 1076.139701][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1076.139701][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1076.139701][   T10]      ip6_route_add+0x1c/0x140
[ 1076.139701][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1076.139701][   T10]      addrconf_add_dev+0xe2/0x170
[ 1076.139701][   T10]      inet6_addr_add+0x12f/0xa40
[ 1076.139701][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1076.139701][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1076.139701][   T10]      netlink_rcv_skb+0x130/0x360
[ 1076.139701][   T10]      netlink_unicast+0x449/0x710
[ 1076.139701][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1076.139701][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1076.139701][   T10]      ___sys_sendmsg+0xee/0x170
[ 1076.139701][   T10]      __sys_sendmsg+0xcd/0x170
[ 1076.139701][   T10]      do_syscall_64+0xc6/0x1e0
[ 1076.139701][   T10] 
[ 1076.141664][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1076.141664][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1076.141664][   T10]      ipv6_find_idev+0x102/0x170
[ 1076.141664][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1076.141664][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1076.141664][   T10]      netlink_rcv_skb+0x130/0x360
[ 1076.141664][   T10]      netlink_unicast+0x449/0x710
[ 1076.141664][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1076.141664][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1076.141664][   T10]      ___sys_sendmsg+0xee/0x170
[ 1076.141664][   T10]      __sys_sendmsg+0xcd/0x170
[ 1076.141664][   T10]      do_syscall_64+0xc6/0x1e0
[ 1076.141664][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1076.141664][   T10] 
[ 1076.143234][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1076.143234][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1076.143234][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1076.143234][   T10]      ipv6_find_idev+0x102/0x170
[ 1076.143234][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1076.143234][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1076.143234][   T10]      netlink_rcv_skb+0x130/0x360
[ 1076.143234][   T10]      netlink_unicast+0x449/0x710
[ 1076.143234][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1076.143234][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1076.143234][   T10]      ___sys_sendmsg+0xee/0x170
[ 1076.143234][   T10]      __sys_sendmsg+0xcd/0x170
[ 1076.143234][   T10]      do_syscall_64+0xc6/0x1e0
[ 1076.143234][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1076.143234][   T10] 
[ 1086.385849][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1086.386661][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1086.386661][   T10]      dst_init+0x84/0x4a0
[ 1086.386661][   T10]      dst_alloc+0x97/0x150
[ 1086.386661][   T10]      ip6_dst_alloc+0x23/0x90
[ 1086.386661][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1086.386661][   T10]      ip6_pol_route+0x56f/0x840
[ 1086.386661][   T10]      fib6_rule_lookup+0x456/0x630
[ 1086.386661][   T10]      ip6_route_input+0x59c/0xa50
[ 1086.386661][   T10]      ipv6_rcv+0x397/0x810
[ 1086.386661][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1086.386661][   T10]      process_backlog+0x101/0x620
[ 1086.386661][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1086.386661][   T10]      net_rx_action+0x495/0xbe0
[ 1086.386661][   T10]      __do_softirq+0x1b5/0x7f6
[ 1086.386661][   T10] 
[ 1086.388345][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1086.388345][   T10]      netdev_get_by_index+0x5e/0x80
[ 1086.388345][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1086.388345][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1086.388345][   T10]      ip6_route_add+0x1c/0x140
[ 1086.388345][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1086.388345][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1086.388345][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1086.388345][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1086.388345][   T10]      netlink_rcv_skb+0x130/0x360
[ 1086.388345][   T10]      netlink_unicast+0x449/0x710
[ 1086.388345][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1086.388345][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1086.388345][   T10]      ___sys_sendmsg+0xee/0x170
[ 1086.388345][   T10]      __sys_sendmsg+0xcd/0x170
[ 1086.388345][   T10]      do_syscall_64+0xc6/0x1e0
[ 1086.388345][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1086.388345][   T10] 
[ 1086.390406][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1086.390406][   T10]      netdev_get_by_index+0x5e/0x80
[ 1086.390406][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1086.390406][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1086.390406][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1086.390406][   T10]      ipv6_add_addr+0x411/0x2000
[ 1086.390406][   T10]      inet6_addr_add+0x30e/0xa40
[ 1086.390406][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1086.390406][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1086.390406][   T10]      netlink_rcv_skb+0x130/0x360
[ 1086.390406][   T10]      netlink_unicast+0x449/0x710
[ 1086.390406][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1086.390406][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1086.390406][   T10]      ___sys_sendmsg+0xee/0x170
[ 1086.390406][   T10]      __sys_sendmsg+0xcd/0x170
[ 1086.390406][   T10]      do_syscall_64+0xc6/0x1e0
[ 1086.390406][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1086.390406][   T10] 
[ 1086.392450][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1086.392450][   T10]      netdev_get_by_index+0x5e/0x80
[ 1086.392450][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1086.392450][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1086.392450][   T10]      ip6_route_add+0x1c/0x140
[ 1086.392450][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1086.392450][   T10]      addrconf_add_dev+0xe2/0x170
[ 1086.392450][   T10]      inet6_addr_add+0x12f/0xa40
[ 1086.392450][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1086.392450][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1086.392450][   T10]      netlink_rcv_skb+0x130/0x360
[ 1086.392450][   T10]      netlink_unicast+0x449/0x710
[ 1086.392450][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1086.392450][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1086.392450][   T10]      ___sys_sendmsg+0xee/0x170
[ 1086.392450][   T10]      __sys_sendmsg+0xcd/0x170
[ 1086.392450][   T10]      do_syscall_64+0xc6/0x1e0
[ 1086.392450][   T10] 
[ 1086.394456][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1086.394456][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1086.394456][   T10]      ipv6_find_idev+0x102/0x170
[ 1086.394456][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1086.394456][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1086.394456][   T10]      netlink_rcv_skb+0x130/0x360
[ 1086.394456][   T10]      netlink_unicast+0x449/0x710
[ 1086.394456][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1086.394456][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1086.394456][   T10]      ___sys_sendmsg+0xee/0x170
[ 1086.394456][   T10]      __sys_sendmsg+0xcd/0x170
[ 1086.394456][   T10]      do_syscall_64+0xc6/0x1e0
[ 1086.394456][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1086.394456][   T10] 
[ 1086.396013][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1086.396013][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1086.396013][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1086.396013][   T10]      ipv6_find_idev+0x102/0x170
[ 1086.396013][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1086.396013][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1086.396013][   T10]      netlink_rcv_skb+0x130/0x360
[ 1086.396013][   T10]      netlink_unicast+0x449/0x710
[ 1086.396013][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1086.396013][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1086.396013][   T10]      ___sys_sendmsg+0xee/0x170
[ 1086.396013][   T10]      __sys_sendmsg+0xcd/0x170
[ 1086.396013][   T10]      do_syscall_64+0xc6/0x1e0
[ 1086.396013][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1086.396013][   T10] 
[ 1086.397711][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1086.397974][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1086.397974][   T10]      dst_init+0x84/0x4a0
[ 1086.397974][   T10]      dst_alloc+0x97/0x150
[ 1086.397974][   T10]      ip6_dst_alloc+0x23/0x90
[ 1086.397974][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1086.397974][   T10]      ip6_pol_route+0x56f/0x840
[ 1086.397974][   T10]      fib6_rule_lookup+0x456/0x630
[ 1086.397974][   T10]      ip6_route_input+0x59c/0xa50
[ 1086.397974][   T10]      ipv6_rcv+0x397/0x810
[ 1086.397974][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1086.397974][   T10]      process_backlog+0x101/0x620
[ 1086.397974][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1086.397974][   T10]      net_rx_action+0x495/0xbe0
[ 1086.397974][   T10]      __do_softirq+0x1b5/0x7f6
[ 1086.397974][   T10] 
[ 1086.399617][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1086.399617][   T10]      netdev_get_by_index+0x5e/0x80
[ 1086.399617][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1086.399617][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1086.399617][   T10]      ip6_route_add+0x1c/0x140
[ 1086.399617][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1086.399617][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1086.399617][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1086.399617][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1086.399617][   T10]      netlink_rcv_skb+0x130/0x360
[ 1086.399617][   T10]      netlink_unicast+0x449/0x710
[ 1086.399617][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1086.399617][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1086.399617][   T10]      ___sys_sendmsg+0xee/0x170
[ 1086.399617][   T10]      __sys_sendmsg+0xcd/0x170
[ 1086.399617][   T10]      do_syscall_64+0xc6/0x1e0
[ 1086.399617][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1086.399617][   T10] 
[ 1086.401617][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1086.401617][   T10]      netdev_get_by_index+0x5e/0x80
[ 1086.401617][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1086.401617][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1086.401617][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1086.401617][   T10]      ipv6_add_addr+0x411/0x2000
[ 1086.401617][   T10]      inet6_addr_add+0x30e/0xa40
[ 1086.401617][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1086.401617][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1086.401617][   T10]      netlink_rcv_skb+0x130/0x360
[ 1086.401617][   T10]      netlink_unicast+0x449/0x710
[ 1086.401617][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1086.401617][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1086.401617][   T10]      ___sys_sendmsg+0xee/0x170
[ 1086.401617][   T10]      __sys_sendmsg+0xcd/0x170
[ 1086.401617][   T10]      do_syscall_64+0xc6/0x1e0
[ 1086.401617][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1086.401617][   T10] 
[ 1086.403616][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1086.403616][   T10]      netdev_get_by_index+0x5e/0x80
[ 1086.403616][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1086.403616][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1086.403616][   T10]      ip6_route_add+0x1c/0x140
[ 1086.403616][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1086.403616][   T10]      addrconf_add_dev+0xe2/0x170
[ 1086.403616][   T10]      inet6_addr_add+0x12f/0xa40
[ 1086.403616][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1086.403616][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1086.403616][   T10]      netlink_rcv_skb+0x130/0x360
[ 1086.403616][   T10]      netlink_unicast+0x449/0x710
[ 1086.403616][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1086.403616][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1086.403616][   T10]      ___sys_sendmsg+0xee/0x170
[ 1086.403616][   T10]      __sys_sendmsg+0xcd/0x170
[ 1086.403616][   T10]      do_syscall_64+0xc6/0x1e0
[ 1086.403616][   T10] 
[ 1086.405581][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1086.405581][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1086.405581][   T10]      ipv6_find_idev+0x102/0x170
[ 1086.405581][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1086.405581][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1086.405581][   T10]      netlink_rcv_skb+0x130/0x360
[ 1086.405581][   T10]      netlink_unicast+0x449/0x710
[ 1086.405581][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1086.405581][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1086.405581][   T10]      ___sys_sendmsg+0xee/0x170
[ 1086.405581][   T10]      __sys_sendmsg+0xcd/0x170
[ 1086.405581][   T10]      do_syscall_64+0xc6/0x1e0
[ 1086.405581][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1086.405581][   T10] 
[ 1086.407127][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1086.407127][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1086.407127][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1086.407127][   T10]      ipv6_find_idev+0x102/0x170
[ 1086.407127][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1086.407127][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1086.407127][   T10]      netlink_rcv_skb+0x130/0x360
[ 1086.407127][   T10]      netlink_unicast+0x449/0x710
[ 1086.407127][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1086.407127][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1086.407127][   T10]      ___sys_sendmsg+0xee/0x170
[ 1086.407127][   T10]      __sys_sendmsg+0xcd/0x170
[ 1086.407127][   T10]      do_syscall_64+0xc6/0x1e0
[ 1086.407127][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1086.407127][   T10] 
[ 1096.521825][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1096.522167][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1096.522167][   T10]      dst_init+0x84/0x4a0
[ 1096.522167][   T10]      dst_alloc+0x97/0x150
[ 1096.522167][   T10]      ip6_dst_alloc+0x23/0x90
[ 1096.522167][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1096.522167][   T10]      ip6_pol_route+0x56f/0x840
[ 1096.522167][   T10]      fib6_rule_lookup+0x456/0x630
[ 1096.522167][   T10]      ip6_route_input+0x59c/0xa50
[ 1096.522167][   T10]      ipv6_rcv+0x397/0x810
[ 1096.522167][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1096.522167][   T10]      process_backlog+0x101/0x620
[ 1096.522167][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1096.522167][   T10]      net_rx_action+0x495/0xbe0
[ 1096.522167][   T10]      __do_softirq+0x1b5/0x7f6
[ 1096.522167][   T10] 
[ 1096.523830][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1096.523830][   T10]      netdev_get_by_index+0x5e/0x80
[ 1096.523830][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1096.523830][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1096.523830][   T10]      ip6_route_add+0x1c/0x140
[ 1096.523830][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1096.523830][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1096.523830][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1096.523830][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1096.523830][   T10]      netlink_rcv_skb+0x130/0x360
[ 1096.523830][   T10]      netlink_unicast+0x449/0x710
[ 1096.523830][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1096.523830][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1096.523830][   T10]      ___sys_sendmsg+0xee/0x170
[ 1096.523830][   T10]      __sys_sendmsg+0xcd/0x170
[ 1096.523830][   T10]      do_syscall_64+0xc6/0x1e0
[ 1096.523830][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1096.523830][   T10] 
[ 1096.525829][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1096.525829][   T10]      netdev_get_by_index+0x5e/0x80
[ 1096.525829][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1096.525829][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1096.525829][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1096.525829][   T10]      ipv6_add_addr+0x411/0x2000
[ 1096.525829][   T10]      inet6_addr_add+0x30e/0xa40
[ 1096.525829][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1096.525829][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1096.525829][   T10]      netlink_rcv_skb+0x130/0x360
[ 1096.525829][   T10]      netlink_unicast+0x449/0x710
[ 1096.525829][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1096.525829][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1096.525829][   T10]      ___sys_sendmsg+0xee/0x170
[ 1096.525829][   T10]      __sys_sendmsg+0xcd/0x170
[ 1096.525829][   T10]      do_syscall_64+0xc6/0x1e0
[ 1096.525829][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1096.525829][   T10] 
[ 1096.527850][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1096.527850][   T10]      netdev_get_by_index+0x5e/0x80
[ 1096.527850][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1096.527850][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1096.527850][   T10]      ip6_route_add+0x1c/0x140
[ 1096.527850][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1096.527850][   T10]      addrconf_add_dev+0xe2/0x170
[ 1096.527850][   T10]      inet6_addr_add+0x12f/0xa40
[ 1096.527850][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1096.527850][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1096.527850][   T10]      netlink_rcv_skb+0x130/0x360
[ 1096.527850][   T10]      netlink_unicast+0x449/0x710
[ 1096.527850][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1096.527850][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1096.527850][   T10]      ___sys_sendmsg+0xee/0x170
[ 1096.527850][   T10]      __sys_sendmsg+0xcd/0x170
[ 1096.527850][   T10]      do_syscall_64+0xc6/0x1e0
[ 1096.527850][   T10] 
[ 1096.529805][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1096.529805][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1096.529805][   T10]      ipv6_find_idev+0x102/0x170
[ 1096.529805][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1096.529805][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1096.529805][   T10]      netlink_rcv_skb+0x130/0x360
[ 1096.529805][   T10]      netlink_unicast+0x449/0x710
[ 1096.529805][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1096.529805][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1096.529805][   T10]      ___sys_sendmsg+0xee/0x170
[ 1096.529805][   T10]      __sys_sendmsg+0xcd/0x170
[ 1096.529805][   T10]      do_syscall_64+0xc6/0x1e0
[ 1096.529805][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1096.529805][   T10] 
[ 1096.531351][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1096.531351][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1096.531351][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1096.531351][   T10]      ipv6_find_idev+0x102/0x170
[ 1096.531351][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1096.531351][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1096.531351][   T10]      netlink_rcv_skb+0x130/0x360
[ 1096.531351][   T10]      netlink_unicast+0x449/0x710
[ 1096.531351][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1096.531351][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1096.531351][   T10]      ___sys_sendmsg+0xee/0x170
[ 1096.531351][   T10]      __sys_sendmsg+0xcd/0x170
[ 1096.531351][   T10]      do_syscall_64+0xc6/0x1e0
[ 1096.531351][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1096.531351][   T10] 
[ 1096.533036][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1096.533276][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1096.533276][   T10]      dst_init+0x84/0x4a0
[ 1096.533276][   T10]      dst_alloc+0x97/0x150
[ 1096.533276][   T10]      ip6_dst_alloc+0x23/0x90
[ 1096.533276][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1096.533276][   T10]      ip6_pol_route+0x56f/0x840
[ 1096.533276][   T10]      fib6_rule_lookup+0x456/0x630
[ 1096.533276][   T10]      ip6_route_input+0x59c/0xa50
[ 1096.533276][   T10]      ipv6_rcv+0x397/0x810
[ 1096.533276][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1096.533276][   T10]      process_backlog+0x101/0x620
[ 1096.533276][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1096.533276][   T10]      net_rx_action+0x495/0xbe0
[ 1096.533276][   T10]      __do_softirq+0x1b5/0x7f6
[ 1096.533276][   T10] 
[ 1096.534922][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1096.534922][   T10]      netdev_get_by_index+0x5e/0x80
[ 1096.534922][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1096.534922][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1096.534922][   T10]      ip6_route_add+0x1c/0x140
[ 1096.534922][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1096.534922][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1096.534922][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1096.534922][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1096.534922][   T10]      netlink_rcv_skb+0x130/0x360
[ 1096.534922][   T10]      netlink_unicast+0x449/0x710
[ 1096.534922][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1096.534922][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1096.534922][   T10]      ___sys_sendmsg+0xee/0x170
[ 1096.534922][   T10]      __sys_sendmsg+0xcd/0x170
[ 1096.534922][   T10]      do_syscall_64+0xc6/0x1e0
[ 1096.534922][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1096.534922][   T10] 
[ 1096.536919][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1096.536919][   T10]      netdev_get_by_index+0x5e/0x80
[ 1096.536919][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1096.536919][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1096.536919][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1096.536919][   T10]      ipv6_add_addr+0x411/0x2000
[ 1096.536919][   T10]      inet6_addr_add+0x30e/0xa40
[ 1096.536919][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1096.536919][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1096.536919][   T10]      netlink_rcv_skb+0x130/0x360
[ 1096.536919][   T10]      netlink_unicast+0x449/0x710
[ 1096.536919][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1096.536919][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1096.536919][   T10]      ___sys_sendmsg+0xee/0x170
[ 1096.536919][   T10]      __sys_sendmsg+0xcd/0x170
[ 1096.536919][   T10]      do_syscall_64+0xc6/0x1e0
[ 1096.536919][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1096.536919][   T10] 
[ 1096.538917][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1096.538917][   T10]      netdev_get_by_index+0x5e/0x80
[ 1096.538917][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1096.538917][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1096.538917][   T10]      ip6_route_add+0x1c/0x140
[ 1096.538917][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1096.538917][   T10]      addrconf_add_dev+0xe2/0x170
[ 1096.538917][   T10]      inet6_addr_add+0x12f/0xa40
[ 1096.538917][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1096.538917][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1096.538917][   T10]      netlink_rcv_skb+0x130/0x360
[ 1096.538917][   T10]      netlink_unicast+0x449/0x710
[ 1096.538917][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1096.538917][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1096.538917][   T10]      ___sys_sendmsg+0xee/0x170
[ 1096.538917][   T10]      __sys_sendmsg+0xcd/0x170
[ 1096.538917][   T10]      do_syscall_64+0xc6/0x1e0
[ 1096.538917][   T10] 
[ 1096.540877][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1096.540877][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1096.540877][   T10]      ipv6_find_idev+0x102/0x170
[ 1096.540877][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1096.540877][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1096.540877][   T10]      netlink_rcv_skb+0x130/0x360
[ 1096.540877][   T10]      netlink_unicast+0x449/0x710
[ 1096.540877][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1096.540877][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1096.540877][   T10]      ___sys_sendmsg+0xee/0x170
[ 1096.540877][   T10]      __sys_sendmsg+0xcd/0x170
[ 1096.540877][   T10]      do_syscall_64+0xc6/0x1e0
[ 1096.540877][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1096.540877][   T10] 
[ 1096.542414][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1096.542414][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1096.542414][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1096.542414][   T10]      ipv6_find_idev+0x102/0x170
[ 1096.542414][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1096.542414][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1096.542414][   T10]      netlink_rcv_skb+0x130/0x360
[ 1096.542414][   T10]      netlink_unicast+0x449/0x710
[ 1096.542414][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1096.542414][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1096.542414][   T10]      ___sys_sendmsg+0xee/0x170
[ 1096.542414][   T10]      __sys_sendmsg+0xcd/0x170
[ 1096.542414][   T10]      do_syscall_64+0xc6/0x1e0
[ 1096.542414][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1096.542414][   T10] 
[ 1106.785785][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1106.786201][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1106.786201][   T10]      dst_init+0x84/0x4a0
[ 1106.786201][   T10]      dst_alloc+0x97/0x150
[ 1106.786201][   T10]      ip6_dst_alloc+0x23/0x90
[ 1106.786201][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1106.786201][   T10]      ip6_pol_route+0x56f/0x840
[ 1106.786201][   T10]      fib6_rule_lookup+0x456/0x630
[ 1106.786201][   T10]      ip6_route_input+0x59c/0xa50
[ 1106.786201][   T10]      ipv6_rcv+0x397/0x810
[ 1106.786201][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1106.786201][   T10]      process_backlog+0x101/0x620
[ 1106.786201][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1106.786201][   T10]      net_rx_action+0x495/0xbe0
[ 1106.786201][   T10]      __do_softirq+0x1b5/0x7f6
[ 1106.786201][   T10] 
[ 1106.787880][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1106.787880][   T10]      netdev_get_by_index+0x5e/0x80
[ 1106.787880][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1106.787880][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1106.787880][   T10]      ip6_route_add+0x1c/0x140
[ 1106.787880][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1106.787880][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1106.787880][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1106.787880][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1106.787880][   T10]      netlink_rcv_skb+0x130/0x360
[ 1106.787880][   T10]      netlink_unicast+0x449/0x710
[ 1106.787880][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1106.787880][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1106.787880][   T10]      ___sys_sendmsg+0xee/0x170
[ 1106.787880][   T10]      __sys_sendmsg+0xcd/0x170
[ 1106.787880][   T10]      do_syscall_64+0xc6/0x1e0
[ 1106.787880][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1106.787880][   T10] 
[ 1106.789880][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1106.789880][   T10]      netdev_get_by_index+0x5e/0x80
[ 1106.789880][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1106.789880][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1106.789880][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1106.789880][   T10]      ipv6_add_addr+0x411/0x2000
[ 1106.789880][   T10]      inet6_addr_add+0x30e/0xa40
[ 1106.789880][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1106.789880][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1106.789880][   T10]      netlink_rcv_skb+0x130/0x360
[ 1106.789880][   T10]      netlink_unicast+0x449/0x710
[ 1106.789880][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1106.789880][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1106.789880][   T10]      ___sys_sendmsg+0xee/0x170
[ 1106.789880][   T10]      __sys_sendmsg+0xcd/0x170
[ 1106.789880][   T10]      do_syscall_64+0xc6/0x1e0
[ 1106.789880][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1106.789880][   T10] 
[ 1106.791878][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1106.791878][   T10]      netdev_get_by_index+0x5e/0x80
[ 1106.791878][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1106.791878][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1106.791878][   T10]      ip6_route_add+0x1c/0x140
[ 1106.791878][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1106.791878][   T10]      addrconf_add_dev+0xe2/0x170
[ 1106.791878][   T10]      inet6_addr_add+0x12f/0xa40
[ 1106.791878][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1106.791878][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1106.791878][   T10]      netlink_rcv_skb+0x130/0x360
[ 1106.791878][   T10]      netlink_unicast+0x449/0x710
[ 1106.791878][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1106.791878][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1106.791878][   T10]      ___sys_sendmsg+0xee/0x170
[ 1106.791878][   T10]      __sys_sendmsg+0xcd/0x170
[ 1106.791878][   T10]      do_syscall_64+0xc6/0x1e0
[ 1106.791878][   T10] 
[ 1106.793840][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1106.793840][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1106.793840][   T10]      ipv6_find_idev+0x102/0x170
[ 1106.793840][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1106.793840][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1106.793840][   T10]      netlink_rcv_skb+0x130/0x360
[ 1106.793840][   T10]      netlink_unicast+0x449/0x710
[ 1106.793840][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1106.793840][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1106.793840][   T10]      ___sys_sendmsg+0xee/0x170
[ 1106.793840][   T10]      __sys_sendmsg+0xcd/0x170
[ 1106.793840][   T10]      do_syscall_64+0xc6/0x1e0
[ 1106.793840][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1106.793840][   T10] 
[ 1106.795380][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1106.795380][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1106.795380][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1106.795380][   T10]      ipv6_find_idev+0x102/0x170
[ 1106.795380][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1106.795380][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1106.795380][   T10]      netlink_rcv_skb+0x130/0x360
[ 1106.795380][   T10]      netlink_unicast+0x449/0x710
[ 1106.795380][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1106.795380][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1106.795380][   T10]      ___sys_sendmsg+0xee/0x170
[ 1106.795380][   T10]      __sys_sendmsg+0xcd/0x170
[ 1106.795380][   T10]      do_syscall_64+0xc6/0x1e0
[ 1106.795380][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1106.795380][   T10] 
[ 1106.797068][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1106.797314][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1106.797314][   T10]      dst_init+0x84/0x4a0
[ 1106.797314][   T10]      dst_alloc+0x97/0x150
[ 1106.797314][   T10]      ip6_dst_alloc+0x23/0x90
[ 1106.797314][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1106.797314][   T10]      ip6_pol_route+0x56f/0x840
[ 1106.797314][   T10]      fib6_rule_lookup+0x456/0x630
[ 1106.797314][   T10]      ip6_route_input+0x59c/0xa50
[ 1106.797314][   T10]      ipv6_rcv+0x397/0x810
[ 1106.797314][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1106.797314][   T10]      process_backlog+0x101/0x620
[ 1106.797314][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1106.797314][   T10]      net_rx_action+0x495/0xbe0
[ 1106.797314][   T10]      __do_softirq+0x1b5/0x7f6
[ 1106.797314][   T10] 
[ 1106.798956][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1106.798956][   T10]      netdev_get_by_index+0x5e/0x80
[ 1106.798956][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1106.798956][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1106.798956][   T10]      ip6_route_add+0x1c/0x140
[ 1106.798956][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1106.798956][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1106.798956][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1106.798956][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1106.798956][   T10]      netlink_rcv_skb+0x130/0x360
[ 1106.798956][   T10]      netlink_unicast+0x449/0x710
[ 1106.798956][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1106.798956][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1106.798956][   T10]      ___sys_sendmsg+0xee/0x170
[ 1106.798956][   T10]      __sys_sendmsg+0xcd/0x170
[ 1106.798956][   T10]      do_syscall_64+0xc6/0x1e0
[ 1106.798956][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1106.798956][   T10] 
[ 1106.800999][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1106.800999][   T10]      netdev_get_by_index+0x5e/0x80
[ 1106.800999][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1106.800999][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1106.800999][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1106.800999][   T10]      ipv6_add_addr+0x411/0x2000
[ 1106.800999][   T10]      inet6_addr_add+0x30e/0xa40
[ 1106.800999][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1106.800999][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1106.800999][   T10]      netlink_rcv_skb+0x130/0x360
[ 1106.800999][   T10]      netlink_unicast+0x449/0x710
[ 1106.800999][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1106.800999][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1106.800999][   T10]      ___sys_sendmsg+0xee/0x170
[ 1106.800999][   T10]      __sys_sendmsg+0xcd/0x170
[ 1106.800999][   T10]      do_syscall_64+0xc6/0x1e0
[ 1106.800999][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1106.800999][   T10] 
[ 1106.803000][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1106.803000][   T10]      netdev_get_by_index+0x5e/0x80
[ 1106.803000][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1106.803000][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1106.803000][   T10]      ip6_route_add+0x1c/0x140
[ 1106.803000][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1106.803000][   T10]      addrconf_add_dev+0xe2/0x170
[ 1106.803000][   T10]      inet6_addr_add+0x12f/0xa40
[ 1106.803000][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1106.803000][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1106.803000][   T10]      netlink_rcv_skb+0x130/0x360
[ 1106.803000][   T10]      netlink_unicast+0x449/0x710
[ 1106.803000][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1106.803000][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1106.803000][   T10]      ___sys_sendmsg+0xee/0x170
[ 1106.803000][   T10]      __sys_sendmsg+0xcd/0x170
[ 1106.803000][   T10]      do_syscall_64+0xc6/0x1e0
[ 1106.803000][   T10] 
[ 1106.804968][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1106.804968][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1106.804968][   T10]      ipv6_find_idev+0x102/0x170
[ 1106.804968][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1106.804968][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1106.804968][   T10]      netlink_rcv_skb+0x130/0x360
[ 1106.804968][   T10]      netlink_unicast+0x449/0x710
[ 1106.804968][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1106.804968][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1106.804968][   T10]      ___sys_sendmsg+0xee/0x170
[ 1106.804968][   T10]      __sys_sendmsg+0xcd/0x170
[ 1106.804968][   T10]      do_syscall_64+0xc6/0x1e0
[ 1106.804968][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1106.804968][   T10] 
[ 1106.806503][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1106.806503][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1106.806503][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1106.806503][   T10]      ipv6_find_idev+0x102/0x170
[ 1106.806503][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1106.806503][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1106.806503][   T10]      netlink_rcv_skb+0x130/0x360
[ 1106.806503][   T10]      netlink_unicast+0x449/0x710
[ 1106.806503][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1106.806503][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1106.806503][   T10]      ___sys_sendmsg+0xee/0x170
[ 1106.806503][   T10]      __sys_sendmsg+0xcd/0x170
[ 1106.806503][   T10]      do_syscall_64+0xc6/0x1e0
[ 1106.806503][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1106.806503][   T10] 
[ 1107.241811][   T42] INFO: task modprobe:376 blocked for more than 983 seconds.
[ 1107.242480][   T42]       Not tainted 6.8.0-virtme #1
[ 1107.242701][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1107.242920][   T42] task:modprobe        state:D stack:25648 pid:376   tgid:376   ppid:39     flags:0x00004002
[ 1107.243174][   T42] Call Trace:
[ 1107.243272][   T42]  <TASK>
[ 1107.243351][   T42]  __schedule+0x705/0x1ac0
[ 1107.243493][   T42]  ? __pfx___schedule+0x10/0x10
[ 1107.243620][   T42]  ? schedule+0x1a5/0x210
[ 1107.243735][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1107.243872][   T42]  ? mark_lock+0x38/0x3e0
[ 1107.243979][   T42]  ? do_raw_spin_lock+0x131/0x270
[ 1107.244107][   T42]  ? schedule+0x1a5/0x210
[ 1107.244224][   T42]  schedule+0xdf/0x210
[ 1107.244333][   T42]  schedule_preempt_disabled+0x15/0x30
[ 1107.244460][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[ 1107.244594][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 1107.244762][   T42]  ? kasan_save_stack+0x34/0x50
[ 1107.244893][   T42]  ? kasan_save_stack+0x24/0x50
[ 1107.245028][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1107.245169][   T42]  ? lock_acquire+0x1c1/0x220
[ 1107.245292][   T42]  ? register_pernet_subsys+0x1a/0x50
[ 1107.245445][   T42]  down_write+0x1c9/0x200
[ 1107.245544][   T42]  ? __pfx_down_write+0x10/0x10
[ 1107.245681][   T42]  ? __pfx___lock_release+0x10/0x10
[ 1107.245814][   T42]  ? __pfx_nf_defrag_init+0x10/0x10 [nf_defrag_ipv4]
[ 1107.245979][   T42]  register_pernet_subsys+0x1a/0x50
[ 1107.246108][   T42]  nf_defrag_init+0x19/0xff0 [nf_defrag_ipv4]
[ 1107.246268][   T42]  do_one_initcall+0xc8/0x3f0
[ 1107.246404][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[ 1107.246535][   T42]  ? __create_object+0x5e/0xb0
[ 1107.246690][   T42]  ? kasan_unpoison+0x27/0x60
[ 1107.246830][   T42]  do_init_module+0x233/0x740
[ 1107.246978][   T42]  load_module+0x16b5/0x2350
[ 1107.247121][   T42]  ? __pfx_load_module+0x10/0x10
[ 1107.247248][   T42]  ? kernel_read_file+0x3d2/0x520
[ 1107.247387][   T42]  ? kernel_read_file+0x300/0x520
[ 1107.247517][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[ 1107.247653][   T42]  ? init_module_from_file+0xd2/0x130
[ 1107.247792][   T42]  init_module_from_file+0xd2/0x130
[ 1107.247928][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[ 1107.248080][   T42]  ? __lock_release+0x103/0x460
[ 1107.248207][   T42]  ? idempotent_init_module+0x32a/0x620
[ 1107.248364][   T42]  ? idempotent_init_module+0x32a/0x620
[ 1107.248491][   T42]  ? do_raw_spin_unlock+0x58/0x220
[ 1107.248634][   T42]  idempotent_init_module+0x342/0x620
[ 1107.248784][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[ 1107.248961][   T42]  __x64_sys_finit_module+0xbe/0x130
[ 1107.249098][   T42]  do_syscall_64+0xc6/0x1e0
[ 1107.249227][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1107.249404][   T42] RIP: 0033:0x7f5fd44b2e5d
[ 1107.249538][   T42] RSP: 002b:00007ffcc85e8928 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 1107.249746][   T42] RAX: ffffffffffffffda RBX: 000055d19cb2e8d0 RCX: 00007f5fd44b2e5d
[ 1107.249933][   T42] RDX: 0000000000000000 RSI: 000055d18f6a6a2a RDI: 0000000000000000
[ 1107.250120][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 000055d19cb2dc10
[ 1107.250313][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055d18f6a6a2a
[ 1107.250514][   T42] R13: 000055d19cb2e880 R14: 000055d19cb2f710 R15: 0000000000000000
[ 1107.250736][   T42]  </TASK>
[ 1107.250833][   T42] 
[ 1107.250833][   T42] Showing all locks held in the system:
[ 1107.251009][   T42] 3 locks held by kworker/u16:0/10:
[ 1107.251137][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[ 1107.251400][   T42]  #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[ 1107.251623][   T42]  #2: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[ 1107.251857][   T42] 2 locks held by kworker/u20:0/39:
[ 1107.251981][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[ 1107.252235][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[ 1107.252521][   T42] 1 lock held by khungtaskd/42:
[ 1107.252643][   T42]  #0: ffffffff9b5591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[ 1107.252883][   T42] 1 lock held by modprobe/376:
[ 1107.253005][   T42]  #0: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[ 1107.253258][   T42] 
[ 1107.253326][   T42] =============================================
[ 1107.253326][   T42] 
[ 1117.049793][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1117.050202][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1117.050202][   T10]      dst_init+0x84/0x4a0
[ 1117.050202][   T10]      dst_alloc+0x97/0x150
[ 1117.050202][   T10]      ip6_dst_alloc+0x23/0x90
[ 1117.050202][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1117.050202][   T10]      ip6_pol_route+0x56f/0x840
[ 1117.050202][   T10]      fib6_rule_lookup+0x456/0x630
[ 1117.050202][   T10]      ip6_route_input+0x59c/0xa50
[ 1117.050202][   T10]      ipv6_rcv+0x397/0x810
[ 1117.050202][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1117.050202][   T10]      process_backlog+0x101/0x620
[ 1117.050202][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1117.050202][   T10]      net_rx_action+0x495/0xbe0
[ 1117.050202][   T10]      __do_softirq+0x1b5/0x7f6
[ 1117.050202][   T10] 
[ 1117.051877][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1117.051877][   T10]      netdev_get_by_index+0x5e/0x80
[ 1117.051877][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1117.051877][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1117.051877][   T10]      ip6_route_add+0x1c/0x140
[ 1117.051877][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1117.051877][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1117.051877][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1117.051877][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1117.051877][   T10]      netlink_rcv_skb+0x130/0x360
[ 1117.051877][   T10]      netlink_unicast+0x449/0x710
[ 1117.051877][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1117.051877][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1117.051877][   T10]      ___sys_sendmsg+0xee/0x170
[ 1117.051877][   T10]      __sys_sendmsg+0xcd/0x170
[ 1117.051877][   T10]      do_syscall_64+0xc6/0x1e0
[ 1117.051877][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1117.051877][   T10] 
[ 1117.053891][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1117.053891][   T10]      netdev_get_by_index+0x5e/0x80
[ 1117.053891][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1117.053891][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1117.053891][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1117.053891][   T10]      ipv6_add_addr+0x411/0x2000
[ 1117.053891][   T10]      inet6_addr_add+0x30e/0xa40
[ 1117.053891][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1117.053891][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1117.053891][   T10]      netlink_rcv_skb+0x130/0x360
[ 1117.053891][   T10]      netlink_unicast+0x449/0x710
[ 1117.053891][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1117.053891][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1117.053891][   T10]      ___sys_sendmsg+0xee/0x170
[ 1117.053891][   T10]      __sys_sendmsg+0xcd/0x170
[ 1117.053891][   T10]      do_syscall_64+0xc6/0x1e0
[ 1117.053891][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1117.053891][   T10] 
[ 1117.055909][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1117.055909][   T10]      netdev_get_by_index+0x5e/0x80
[ 1117.055909][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1117.055909][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1117.055909][   T10]      ip6_route_add+0x1c/0x140
[ 1117.055909][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1117.055909][   T10]      addrconf_add_dev+0xe2/0x170
[ 1117.055909][   T10]      inet6_addr_add+0x12f/0xa40
[ 1117.055909][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1117.055909][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1117.055909][   T10]      netlink_rcv_skb+0x130/0x360
[ 1117.055909][   T10]      netlink_unicast+0x449/0x710
[ 1117.055909][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1117.055909][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1117.055909][   T10]      ___sys_sendmsg+0xee/0x170
[ 1117.055909][   T10]      __sys_sendmsg+0xcd/0x170
[ 1117.055909][   T10]      do_syscall_64+0xc6/0x1e0
[ 1117.055909][   T10] 
[ 1117.057889][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1117.057889][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1117.057889][   T10]      ipv6_find_idev+0x102/0x170
[ 1117.057889][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1117.057889][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1117.057889][   T10]      netlink_rcv_skb+0x130/0x360
[ 1117.057889][   T10]      netlink_unicast+0x449/0x710
[ 1117.057889][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1117.057889][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1117.057889][   T10]      ___sys_sendmsg+0xee/0x170
[ 1117.057889][   T10]      __sys_sendmsg+0xcd/0x170
[ 1117.057889][   T10]      do_syscall_64+0xc6/0x1e0
[ 1117.057889][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1117.057889][   T10] 
[ 1117.059431][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1117.059431][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1117.059431][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1117.059431][   T10]      ipv6_find_idev+0x102/0x170
[ 1117.059431][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1117.059431][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1117.059431][   T10]      netlink_rcv_skb+0x130/0x360
[ 1117.059431][   T10]      netlink_unicast+0x449/0x710
[ 1117.059431][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1117.059431][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1117.059431][   T10]      ___sys_sendmsg+0xee/0x170
[ 1117.059431][   T10]      __sys_sendmsg+0xcd/0x170
[ 1117.059431][   T10]      do_syscall_64+0xc6/0x1e0
[ 1117.059431][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1117.059431][   T10] 
[ 1117.061130][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1117.061371][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1117.061371][   T10]      dst_init+0x84/0x4a0
[ 1117.061371][   T10]      dst_alloc+0x97/0x150
[ 1117.061371][   T10]      ip6_dst_alloc+0x23/0x90
[ 1117.061371][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1117.061371][   T10]      ip6_pol_route+0x56f/0x840
[ 1117.061371][   T10]      fib6_rule_lookup+0x456/0x630
[ 1117.061371][   T10]      ip6_route_input+0x59c/0xa50
[ 1117.061371][   T10]      ipv6_rcv+0x397/0x810
[ 1117.061371][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1117.061371][   T10]      process_backlog+0x101/0x620
[ 1117.061371][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1117.061371][   T10]      net_rx_action+0x495/0xbe0
[ 1117.061371][   T10]      __do_softirq+0x1b5/0x7f6
[ 1117.061371][   T10] 
[ 1117.063007][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1117.063007][   T10]      netdev_get_by_index+0x5e/0x80
[ 1117.063007][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1117.063007][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1117.063007][   T10]      ip6_route_add+0x1c/0x140
[ 1117.063007][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1117.063007][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1117.063007][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1117.063007][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1117.063007][   T10]      netlink_rcv_skb+0x130/0x360
[ 1117.063007][   T10]      netlink_unicast+0x449/0x710
[ 1117.063007][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1117.063007][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1117.063007][   T10]      ___sys_sendmsg+0xee/0x170
[ 1117.063007][   T10]      __sys_sendmsg+0xcd/0x170
[ 1117.063007][   T10]      do_syscall_64+0xc6/0x1e0
[ 1117.063007][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1117.063007][   T10] 
[ 1117.065007][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1117.065007][   T10]      netdev_get_by_index+0x5e/0x80
[ 1117.065007][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1117.065007][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1117.065007][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1117.065007][   T10]      ipv6_add_addr+0x411/0x2000
[ 1117.065007][   T10]      inet6_addr_add+0x30e/0xa40
[ 1117.065007][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1117.065007][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1117.065007][   T10]      netlink_rcv_skb+0x130/0x360
[ 1117.065007][   T10]      netlink_unicast+0x449/0x710
[ 1117.065007][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1117.065007][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1117.065007][   T10]      ___sys_sendmsg+0xee/0x170
[ 1117.065007][   T10]      __sys_sendmsg+0xcd/0x170
[ 1117.065007][   T10]      do_syscall_64+0xc6/0x1e0
[ 1117.065007][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1117.065007][   T10] 
[ 1117.067025][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1117.067025][   T10]      netdev_get_by_index+0x5e/0x80
[ 1117.067025][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1117.067025][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1117.067025][   T10]      ip6_route_add+0x1c/0x140
[ 1117.067025][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1117.067025][   T10]      addrconf_add_dev+0xe2/0x170
[ 1117.067025][   T10]      inet6_addr_add+0x12f/0xa40
[ 1117.067025][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1117.067025][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1117.067025][   T10]      netlink_rcv_skb+0x130/0x360
[ 1117.067025][   T10]      netlink_unicast+0x449/0x710
[ 1117.067025][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1117.067025][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1117.067025][   T10]      ___sys_sendmsg+0xee/0x170
[ 1117.067025][   T10]      __sys_sendmsg+0xcd/0x170
[ 1117.067025][   T10]      do_syscall_64+0xc6/0x1e0
[ 1117.067025][   T10] 
[ 1117.068984][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1117.068984][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1117.068984][   T10]      ipv6_find_idev+0x102/0x170
[ 1117.068984][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1117.068984][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1117.068984][   T10]      netlink_rcv_skb+0x130/0x360
[ 1117.068984][   T10]      netlink_unicast+0x449/0x710
[ 1117.068984][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1117.068984][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1117.068984][   T10]      ___sys_sendmsg+0xee/0x170
[ 1117.068984][   T10]      __sys_sendmsg+0xcd/0x170
[ 1117.068984][   T10]      do_syscall_64+0xc6/0x1e0
[ 1117.068984][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1117.068984][   T10] 
[ 1117.070520][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1117.070520][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1117.070520][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1117.070520][   T10]      ipv6_find_idev+0x102/0x170
[ 1117.070520][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1117.070520][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1117.070520][   T10]      netlink_rcv_skb+0x130/0x360
[ 1117.070520][   T10]      netlink_unicast+0x449/0x710
[ 1117.070520][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1117.070520][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1117.070520][   T10]      ___sys_sendmsg+0xee/0x170
[ 1117.070520][   T10]      __sys_sendmsg+0xcd/0x170
[ 1117.070520][   T10]      do_syscall_64+0xc6/0x1e0
[ 1117.070520][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1117.070520][   T10] 
[ 1127.313843][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1127.314676][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1127.314676][   T10]      dst_init+0x84/0x4a0
[ 1127.314676][   T10]      dst_alloc+0x97/0x150
[ 1127.314676][   T10]      ip6_dst_alloc+0x23/0x90
[ 1127.314676][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1127.314676][   T10]      ip6_pol_route+0x56f/0x840
[ 1127.314676][   T10]      fib6_rule_lookup+0x456/0x630
[ 1127.314676][   T10]      ip6_route_input+0x59c/0xa50
[ 1127.314676][   T10]      ipv6_rcv+0x397/0x810
[ 1127.314676][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1127.314676][   T10]      process_backlog+0x101/0x620
[ 1127.314676][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1127.314676][   T10]      net_rx_action+0x495/0xbe0
[ 1127.314676][   T10]      __do_softirq+0x1b5/0x7f6
[ 1127.314676][   T10] 
[ 1127.316345][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1127.316345][   T10]      netdev_get_by_index+0x5e/0x80
[ 1127.316345][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1127.316345][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1127.316345][   T10]      ip6_route_add+0x1c/0x140
[ 1127.316345][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1127.316345][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1127.316345][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1127.316345][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1127.316345][   T10]      netlink_rcv_skb+0x130/0x360
[ 1127.316345][   T10]      netlink_unicast+0x449/0x710
[ 1127.316345][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1127.316345][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1127.316345][   T10]      ___sys_sendmsg+0xee/0x170
[ 1127.316345][   T10]      __sys_sendmsg+0xcd/0x170
[ 1127.316345][   T10]      do_syscall_64+0xc6/0x1e0
[ 1127.316345][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1127.316345][   T10] 
[ 1127.318389][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1127.318389][   T10]      netdev_get_by_index+0x5e/0x80
[ 1127.318389][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1127.318389][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1127.318389][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1127.318389][   T10]      ipv6_add_addr+0x411/0x2000
[ 1127.318389][   T10]      inet6_addr_add+0x30e/0xa40
[ 1127.318389][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1127.318389][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1127.318389][   T10]      netlink_rcv_skb+0x130/0x360
[ 1127.318389][   T10]      netlink_unicast+0x449/0x710
[ 1127.318389][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1127.318389][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1127.318389][   T10]      ___sys_sendmsg+0xee/0x170
[ 1127.318389][   T10]      __sys_sendmsg+0xcd/0x170
[ 1127.318389][   T10]      do_syscall_64+0xc6/0x1e0
[ 1127.318389][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1127.318389][   T10] 
[ 1127.320428][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1127.320428][   T10]      netdev_get_by_index+0x5e/0x80
[ 1127.320428][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1127.320428][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1127.320428][   T10]      ip6_route_add+0x1c/0x140
[ 1127.320428][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1127.320428][   T10]      addrconf_add_dev+0xe2/0x170
[ 1127.320428][   T10]      inet6_addr_add+0x12f/0xa40
[ 1127.320428][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1127.320428][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1127.320428][   T10]      netlink_rcv_skb+0x130/0x360
[ 1127.320428][   T10]      netlink_unicast+0x449/0x710
[ 1127.320428][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1127.320428][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1127.320428][   T10]      ___sys_sendmsg+0xee/0x170
[ 1127.320428][   T10]      __sys_sendmsg+0xcd/0x170
[ 1127.320428][   T10]      do_syscall_64+0xc6/0x1e0
[ 1127.320428][   T10] 
[ 1127.322391][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1127.322391][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1127.322391][   T10]      ipv6_find_idev+0x102/0x170
[ 1127.322391][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1127.322391][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1127.322391][   T10]      netlink_rcv_skb+0x130/0x360
[ 1127.322391][   T10]      netlink_unicast+0x449/0x710
[ 1127.322391][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1127.322391][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1127.322391][   T10]      ___sys_sendmsg+0xee/0x170
[ 1127.322391][   T10]      __sys_sendmsg+0xcd/0x170
[ 1127.322391][   T10]      do_syscall_64+0xc6/0x1e0
[ 1127.322391][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1127.322391][   T10] 
[ 1127.323945][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1127.323945][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1127.323945][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1127.323945][   T10]      ipv6_find_idev+0x102/0x170
[ 1127.323945][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1127.323945][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1127.323945][   T10]      netlink_rcv_skb+0x130/0x360
[ 1127.323945][   T10]      netlink_unicast+0x449/0x710
[ 1127.323945][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1127.323945][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1127.323945][   T10]      ___sys_sendmsg+0xee/0x170
[ 1127.323945][   T10]      __sys_sendmsg+0xcd/0x170
[ 1127.323945][   T10]      do_syscall_64+0xc6/0x1e0
[ 1127.323945][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1127.323945][   T10] 
[ 1127.325632][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1127.325885][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1127.325885][   T10]      dst_init+0x84/0x4a0
[ 1127.325885][   T10]      dst_alloc+0x97/0x150
[ 1127.325885][   T10]      ip6_dst_alloc+0x23/0x90
[ 1127.325885][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1127.325885][   T10]      ip6_pol_route+0x56f/0x840
[ 1127.325885][   T10]      fib6_rule_lookup+0x456/0x630
[ 1127.325885][   T10]      ip6_route_input+0x59c/0xa50
[ 1127.325885][   T10]      ipv6_rcv+0x397/0x810
[ 1127.325885][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1127.325885][   T10]      process_backlog+0x101/0x620
[ 1127.325885][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1127.325885][   T10]      net_rx_action+0x495/0xbe0
[ 1127.325885][   T10]      __do_softirq+0x1b5/0x7f6
[ 1127.325885][   T10] 
[ 1127.327535][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1127.327535][   T10]      netdev_get_by_index+0x5e/0x80
[ 1127.327535][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1127.327535][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1127.327535][   T10]      ip6_route_add+0x1c/0x140
[ 1127.327535][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1127.327535][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1127.327535][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1127.327535][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1127.327535][   T10]      netlink_rcv_skb+0x130/0x360
[ 1127.327535][   T10]      netlink_unicast+0x449/0x710
[ 1127.327535][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1127.327535][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1127.327535][   T10]      ___sys_sendmsg+0xee/0x170
[ 1127.327535][   T10]      __sys_sendmsg+0xcd/0x170
[ 1127.327535][   T10]      do_syscall_64+0xc6/0x1e0
[ 1127.327535][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1127.327535][   T10] 
[ 1127.329531][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1127.329531][   T10]      netdev_get_by_index+0x5e/0x80
[ 1127.329531][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1127.329531][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1127.329531][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1127.329531][   T10]      ipv6_add_addr+0x411/0x2000
[ 1127.329531][   T10]      inet6_addr_add+0x30e/0xa40
[ 1127.329531][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1127.329531][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1127.329531][   T10]      netlink_rcv_skb+0x130/0x360
[ 1127.329531][   T10]      netlink_unicast+0x449/0x710
[ 1127.329531][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1127.329531][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1127.329531][   T10]      ___sys_sendmsg+0xee/0x170
[ 1127.329531][   T10]      __sys_sendmsg+0xcd/0x170
[ 1127.329531][   T10]      do_syscall_64+0xc6/0x1e0
[ 1127.329531][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1127.329531][   T10] 
[ 1127.331538][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1127.331538][   T10]      netdev_get_by_index+0x5e/0x80
[ 1127.331538][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1127.331538][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1127.331538][   T10]      ip6_route_add+0x1c/0x140
[ 1127.331538][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1127.331538][   T10]      addrconf_add_dev+0xe2/0x170
[ 1127.331538][   T10]      inet6_addr_add+0x12f/0xa40
[ 1127.331538][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1127.331538][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1127.331538][   T10]      netlink_rcv_skb+0x130/0x360
[ 1127.331538][   T10]      netlink_unicast+0x449/0x710
[ 1127.331538][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1127.331538][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1127.331538][   T10]      ___sys_sendmsg+0xee/0x170
[ 1127.331538][   T10]      __sys_sendmsg+0xcd/0x170
[ 1127.331538][   T10]      do_syscall_64+0xc6/0x1e0
[ 1127.331538][   T10] 
[ 1127.333511][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1127.333511][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1127.333511][   T10]      ipv6_find_idev+0x102/0x170
[ 1127.333511][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1127.333511][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1127.333511][   T10]      netlink_rcv_skb+0x130/0x360
[ 1127.333511][   T10]      netlink_unicast+0x449/0x710
[ 1127.333511][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1127.333511][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1127.333511][   T10]      ___sys_sendmsg+0xee/0x170
[ 1127.333511][   T10]      __sys_sendmsg+0xcd/0x170
[ 1127.333511][   T10]      do_syscall_64+0xc6/0x1e0
[ 1127.333511][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1127.333511][   T10] 
[ 1127.335043][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1127.335043][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1127.335043][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1127.335043][   T10]      ipv6_find_idev+0x102/0x170
[ 1127.335043][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1127.335043][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1127.335043][   T10]      netlink_rcv_skb+0x130/0x360
[ 1127.335043][   T10]      netlink_unicast+0x449/0x710
[ 1127.335043][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1127.335043][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1127.335043][   T10]      ___sys_sendmsg+0xee/0x170
[ 1127.335043][   T10]      __sys_sendmsg+0xcd/0x170
[ 1127.335043][   T10]      do_syscall_64+0xc6/0x1e0
[ 1127.335043][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1127.335043][   T10] 
[ 1137.577856][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1137.578746][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1137.578746][   T10]      dst_init+0x84/0x4a0
[ 1137.578746][   T10]      dst_alloc+0x97/0x150
[ 1137.578746][   T10]      ip6_dst_alloc+0x23/0x90
[ 1137.578746][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1137.578746][   T10]      ip6_pol_route+0x56f/0x840
[ 1137.578746][   T10]      fib6_rule_lookup+0x456/0x630
[ 1137.578746][   T10]      ip6_route_input+0x59c/0xa50
[ 1137.578746][   T10]      ipv6_rcv+0x397/0x810
[ 1137.578746][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1137.578746][   T10]      process_backlog+0x101/0x620
[ 1137.578746][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1137.578746][   T10]      net_rx_action+0x495/0xbe0
[ 1137.578746][   T10]      __do_softirq+0x1b5/0x7f6
[ 1137.578746][   T10] 
[ 1137.580454][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1137.580454][   T10]      netdev_get_by_index+0x5e/0x80
[ 1137.580454][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1137.580454][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1137.580454][   T10]      ip6_route_add+0x1c/0x140
[ 1137.580454][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1137.580454][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1137.580454][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1137.580454][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1137.580454][   T10]      netlink_rcv_skb+0x130/0x360
[ 1137.580454][   T10]      netlink_unicast+0x449/0x710
[ 1137.580454][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1137.580454][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1137.580454][   T10]      ___sys_sendmsg+0xee/0x170
[ 1137.580454][   T10]      __sys_sendmsg+0xcd/0x170
[ 1137.580454][   T10]      do_syscall_64+0xc6/0x1e0
[ 1137.580454][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1137.580454][   T10] 
[ 1137.582466][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1137.582466][   T10]      netdev_get_by_index+0x5e/0x80
[ 1137.582466][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1137.582466][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1137.582466][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1137.582466][   T10]      ipv6_add_addr+0x411/0x2000
[ 1137.582466][   T10]      inet6_addr_add+0x30e/0xa40
[ 1137.582466][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1137.582466][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1137.582466][   T10]      netlink_rcv_skb+0x130/0x360
[ 1137.582466][   T10]      netlink_unicast+0x449/0x710
[ 1137.582466][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1137.582466][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1137.582466][   T10]      ___sys_sendmsg+0xee/0x170
[ 1137.582466][   T10]      __sys_sendmsg+0xcd/0x170
[ 1137.582466][   T10]      do_syscall_64+0xc6/0x1e0
[ 1137.582466][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1137.582466][   T10] 
[ 1137.584492][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1137.584492][   T10]      netdev_get_by_index+0x5e/0x80
[ 1137.584492][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1137.584492][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1137.584492][   T10]      ip6_route_add+0x1c/0x140
[ 1137.584492][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1137.584492][   T10]      addrconf_add_dev+0xe2/0x170
[ 1137.584492][   T10]      inet6_addr_add+0x12f/0xa40
[ 1137.584492][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1137.584492][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1137.584492][   T10]      netlink_rcv_skb+0x130/0x360
[ 1137.584492][   T10]      netlink_unicast+0x449/0x710
[ 1137.584492][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1137.584492][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1137.584492][   T10]      ___sys_sendmsg+0xee/0x170
[ 1137.584492][   T10]      __sys_sendmsg+0xcd/0x170
[ 1137.584492][   T10]      do_syscall_64+0xc6/0x1e0
[ 1137.584492][   T10] 
[ 1137.586463][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1137.586463][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1137.586463][   T10]      ipv6_find_idev+0x102/0x170
[ 1137.586463][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1137.586463][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1137.586463][   T10]      netlink_rcv_skb+0x130/0x360
[ 1137.586463][   T10]      netlink_unicast+0x449/0x710
[ 1137.586463][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1137.586463][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1137.586463][   T10]      ___sys_sendmsg+0xee/0x170
[ 1137.586463][   T10]      __sys_sendmsg+0xcd/0x170
[ 1137.586463][   T10]      do_syscall_64+0xc6/0x1e0
[ 1137.586463][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1137.586463][   T10] 
[ 1137.588030][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1137.588030][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1137.588030][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1137.588030][   T10]      ipv6_find_idev+0x102/0x170
[ 1137.588030][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1137.588030][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1137.588030][   T10]      netlink_rcv_skb+0x130/0x360
[ 1137.588030][   T10]      netlink_unicast+0x449/0x710
[ 1137.588030][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1137.588030][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1137.588030][   T10]      ___sys_sendmsg+0xee/0x170
[ 1137.588030][   T10]      __sys_sendmsg+0xcd/0x170
[ 1137.588030][   T10]      do_syscall_64+0xc6/0x1e0
[ 1137.588030][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1137.588030][   T10] 
[ 1137.589721][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1137.589968][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1137.589968][   T10]      dst_init+0x84/0x4a0
[ 1137.589968][   T10]      dst_alloc+0x97/0x150
[ 1137.589968][   T10]      ip6_dst_alloc+0x23/0x90
[ 1137.589968][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1137.589968][   T10]      ip6_pol_route+0x56f/0x840
[ 1137.589968][   T10]      fib6_rule_lookup+0x456/0x630
[ 1137.589968][   T10]      ip6_route_input+0x59c/0xa50
[ 1137.589968][   T10]      ipv6_rcv+0x397/0x810
[ 1137.589968][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1137.589968][   T10]      process_backlog+0x101/0x620
[ 1137.589968][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1137.589968][   T10]      net_rx_action+0x495/0xbe0
[ 1137.589968][   T10]      __do_softirq+0x1b5/0x7f6
[ 1137.589968][   T10] 
[ 1137.591604][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1137.591604][   T10]      netdev_get_by_index+0x5e/0x80
[ 1137.591604][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1137.591604][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1137.591604][   T10]      ip6_route_add+0x1c/0x140
[ 1137.591604][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1137.591604][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1137.591604][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1137.591604][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1137.591604][   T10]      netlink_rcv_skb+0x130/0x360
[ 1137.591604][   T10]      netlink_unicast+0x449/0x710
[ 1137.591604][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1137.591604][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1137.591604][   T10]      ___sys_sendmsg+0xee/0x170
[ 1137.591604][   T10]      __sys_sendmsg+0xcd/0x170
[ 1137.591604][   T10]      do_syscall_64+0xc6/0x1e0
[ 1137.591604][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1137.591604][   T10] 
[ 1137.593611][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1137.593611][   T10]      netdev_get_by_index+0x5e/0x80
[ 1137.593611][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1137.593611][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1137.593611][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1137.593611][   T10]      ipv6_add_addr+0x411/0x2000
[ 1137.593611][   T10]      inet6_addr_add+0x30e/0xa40
[ 1137.593611][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1137.593611][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1137.593611][   T10]      netlink_rcv_skb+0x130/0x360
[ 1137.593611][   T10]      netlink_unicast+0x449/0x710
[ 1137.593611][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1137.593611][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1137.593611][   T10]      ___sys_sendmsg+0xee/0x170
[ 1137.593611][   T10]      __sys_sendmsg+0xcd/0x170
[ 1137.593611][   T10]      do_syscall_64+0xc6/0x1e0
[ 1137.593611][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1137.593611][   T10] 
[ 1137.595615][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1137.595615][   T10]      netdev_get_by_index+0x5e/0x80
[ 1137.595615][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1137.595615][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1137.595615][   T10]      ip6_route_add+0x1c/0x140
[ 1137.595615][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1137.595615][   T10]      addrconf_add_dev+0xe2/0x170
[ 1137.595615][   T10]      inet6_addr_add+0x12f/0xa40
[ 1137.595615][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1137.595615][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1137.595615][   T10]      netlink_rcv_skb+0x130/0x360
[ 1137.595615][   T10]      netlink_unicast+0x449/0x710
[ 1137.595615][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1137.595615][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1137.595615][   T10]      ___sys_sendmsg+0xee/0x170
[ 1137.595615][   T10]      __sys_sendmsg+0xcd/0x170
[ 1137.595615][   T10]      do_syscall_64+0xc6/0x1e0
[ 1137.595615][   T10] 
[ 1137.597585][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1137.597585][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1137.597585][   T10]      ipv6_find_idev+0x102/0x170
[ 1137.597585][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1137.597585][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1137.597585][   T10]      netlink_rcv_skb+0x130/0x360
[ 1137.597585][   T10]      netlink_unicast+0x449/0x710
[ 1137.597585][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1137.597585][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1137.597585][   T10]      ___sys_sendmsg+0xee/0x170
[ 1137.597585][   T10]      __sys_sendmsg+0xcd/0x170
[ 1137.597585][   T10]      do_syscall_64+0xc6/0x1e0
[ 1137.597585][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1137.597585][   T10] 
[ 1137.599121][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1137.599121][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1137.599121][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1137.599121][   T10]      ipv6_find_idev+0x102/0x170
[ 1137.599121][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1137.599121][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1137.599121][   T10]      netlink_rcv_skb+0x130/0x360
[ 1137.599121][   T10]      netlink_unicast+0x449/0x710
[ 1137.599121][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1137.599121][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1137.599121][   T10]      ___sys_sendmsg+0xee/0x170
[ 1137.599121][   T10]      __sys_sendmsg+0xcd/0x170
[ 1137.599121][   T10]      do_syscall_64+0xc6/0x1e0
[ 1137.599121][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1137.599121][   T10] 
[ 1147.841801][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1147.842607][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1147.842607][   T10]      dst_init+0x84/0x4a0
[ 1147.842607][   T10]      dst_alloc+0x97/0x150
[ 1147.842607][   T10]      ip6_dst_alloc+0x23/0x90
[ 1147.842607][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1147.842607][   T10]      ip6_pol_route+0x56f/0x840
[ 1147.842607][   T10]      fib6_rule_lookup+0x456/0x630
[ 1147.842607][   T10]      ip6_route_input+0x59c/0xa50
[ 1147.842607][   T10]      ipv6_rcv+0x397/0x810
[ 1147.842607][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1147.842607][   T10]      process_backlog+0x101/0x620
[ 1147.842607][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1147.842607][   T10]      net_rx_action+0x495/0xbe0
[ 1147.842607][   T10]      __do_softirq+0x1b5/0x7f6
[ 1147.842607][   T10] 
[ 1147.844275][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1147.844275][   T10]      netdev_get_by_index+0x5e/0x80
[ 1147.844275][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1147.844275][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1147.844275][   T10]      ip6_route_add+0x1c/0x140
[ 1147.844275][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1147.844275][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1147.844275][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1147.844275][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1147.844275][   T10]      netlink_rcv_skb+0x130/0x360
[ 1147.844275][   T10]      netlink_unicast+0x449/0x710
[ 1147.844275][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1147.844275][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1147.844275][   T10]      ___sys_sendmsg+0xee/0x170
[ 1147.844275][   T10]      __sys_sendmsg+0xcd/0x170
[ 1147.844275][   T10]      do_syscall_64+0xc6/0x1e0
[ 1147.844275][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1147.844275][   T10] 
[ 1147.846284][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1147.846284][   T10]      netdev_get_by_index+0x5e/0x80
[ 1147.846284][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1147.846284][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1147.846284][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1147.846284][   T10]      ipv6_add_addr+0x411/0x2000
[ 1147.846284][   T10]      inet6_addr_add+0x30e/0xa40
[ 1147.846284][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1147.846284][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1147.846284][   T10]      netlink_rcv_skb+0x130/0x360
[ 1147.846284][   T10]      netlink_unicast+0x449/0x710
[ 1147.846284][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1147.846284][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1147.846284][   T10]      ___sys_sendmsg+0xee/0x170
[ 1147.846284][   T10]      __sys_sendmsg+0xcd/0x170
[ 1147.846284][   T10]      do_syscall_64+0xc6/0x1e0
[ 1147.846284][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1147.846284][   T10] 
[ 1147.848310][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1147.848310][   T10]      netdev_get_by_index+0x5e/0x80
[ 1147.848310][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1147.848310][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1147.848310][   T10]      ip6_route_add+0x1c/0x140
[ 1147.848310][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1147.848310][   T10]      addrconf_add_dev+0xe2/0x170
[ 1147.848310][   T10]      inet6_addr_add+0x12f/0xa40
[ 1147.848310][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1147.848310][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1147.848310][   T10]      netlink_rcv_skb+0x130/0x360
[ 1147.848310][   T10]      netlink_unicast+0x449/0x710
[ 1147.848310][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1147.848310][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1147.848310][   T10]      ___sys_sendmsg+0xee/0x170
[ 1147.848310][   T10]      __sys_sendmsg+0xcd/0x170
[ 1147.848310][   T10]      do_syscall_64+0xc6/0x1e0
[ 1147.848310][   T10] 
[ 1147.850303][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1147.850303][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1147.850303][   T10]      ipv6_find_idev+0x102/0x170
[ 1147.850303][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1147.850303][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1147.850303][   T10]      netlink_rcv_skb+0x130/0x360
[ 1147.850303][   T10]      netlink_unicast+0x449/0x710
[ 1147.850303][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1147.850303][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1147.850303][   T10]      ___sys_sendmsg+0xee/0x170
[ 1147.850303][   T10]      __sys_sendmsg+0xcd/0x170
[ 1147.850303][   T10]      do_syscall_64+0xc6/0x1e0
[ 1147.850303][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1147.850303][   T10] 
[ 1147.851859][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1147.851859][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1147.851859][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1147.851859][   T10]      ipv6_find_idev+0x102/0x170
[ 1147.851859][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1147.851859][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1147.851859][   T10]      netlink_rcv_skb+0x130/0x360
[ 1147.851859][   T10]      netlink_unicast+0x449/0x710
[ 1147.851859][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1147.851859][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1147.851859][   T10]      ___sys_sendmsg+0xee/0x170
[ 1147.851859][   T10]      __sys_sendmsg+0xcd/0x170
[ 1147.851859][   T10]      do_syscall_64+0xc6/0x1e0
[ 1147.851859][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1147.851859][   T10] 
[ 1147.853571][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1147.853819][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1147.853819][   T10]      dst_init+0x84/0x4a0
[ 1147.853819][   T10]      dst_alloc+0x97/0x150
[ 1147.853819][   T10]      ip6_dst_alloc+0x23/0x90
[ 1147.853819][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1147.853819][   T10]      ip6_pol_route+0x56f/0x840
[ 1147.853819][   T10]      fib6_rule_lookup+0x456/0x630
[ 1147.853819][   T10]      ip6_route_input+0x59c/0xa50
[ 1147.853819][   T10]      ipv6_rcv+0x397/0x810
[ 1147.853819][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1147.853819][   T10]      process_backlog+0x101/0x620
[ 1147.853819][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1147.853819][   T10]      net_rx_action+0x495/0xbe0
[ 1147.853819][   T10]      __do_softirq+0x1b5/0x7f6
[ 1147.853819][   T10] 
[ 1147.855453][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1147.855453][   T10]      netdev_get_by_index+0x5e/0x80
[ 1147.855453][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1147.855453][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1147.855453][   T10]      ip6_route_add+0x1c/0x140
[ 1147.855453][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1147.855453][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1147.855453][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1147.855453][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1147.855453][   T10]      netlink_rcv_skb+0x130/0x360
[ 1147.855453][   T10]      netlink_unicast+0x449/0x710
[ 1147.855453][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1147.855453][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1147.855453][   T10]      ___sys_sendmsg+0xee/0x170
[ 1147.855453][   T10]      __sys_sendmsg+0xcd/0x170
[ 1147.855453][   T10]      do_syscall_64+0xc6/0x1e0
[ 1147.855453][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1147.855453][   T10] 
[ 1147.857453][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1147.857453][   T10]      netdev_get_by_index+0x5e/0x80
[ 1147.857453][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1147.857453][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1147.857453][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1147.857453][   T10]      ipv6_add_addr+0x411/0x2000
[ 1147.857453][   T10]      inet6_addr_add+0x30e/0xa40
[ 1147.857453][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1147.857453][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1147.857453][   T10]      netlink_rcv_skb+0x130/0x360
[ 1147.857453][   T10]      netlink_unicast+0x449/0x710
[ 1147.857453][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1147.857453][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1147.857453][   T10]      ___sys_sendmsg+0xee/0x170
[ 1147.857453][   T10]      __sys_sendmsg+0xcd/0x170
[ 1147.857453][   T10]      do_syscall_64+0xc6/0x1e0
[ 1147.857453][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1147.857453][   T10] 
[ 1147.859452][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1147.859452][   T10]      netdev_get_by_index+0x5e/0x80
[ 1147.859452][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1147.859452][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1147.859452][   T10]      ip6_route_add+0x1c/0x140
[ 1147.859452][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1147.859452][   T10]      addrconf_add_dev+0xe2/0x170
[ 1147.859452][   T10]      inet6_addr_add+0x12f/0xa40
[ 1147.859452][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1147.859452][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1147.859452][   T10]      netlink_rcv_skb+0x130/0x360
[ 1147.859452][   T10]      netlink_unicast+0x449/0x710
[ 1147.859452][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1147.859452][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1147.859452][   T10]      ___sys_sendmsg+0xee/0x170
[ 1147.859452][   T10]      __sys_sendmsg+0xcd/0x170
[ 1147.859452][   T10]      do_syscall_64+0xc6/0x1e0
[ 1147.859452][   T10] 
[ 1147.861883][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1147.861883][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1147.861883][   T10]      ipv6_find_idev+0x102/0x170
[ 1147.861883][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1147.861883][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1147.861883][   T10]      netlink_rcv_skb+0x130/0x360
[ 1147.861883][   T10]      netlink_unicast+0x449/0x710
[ 1147.861883][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1147.861883][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1147.861883][   T10]      ___sys_sendmsg+0xee/0x170
[ 1147.861883][   T10]      __sys_sendmsg+0xcd/0x170
[ 1147.861883][   T10]      do_syscall_64+0xc6/0x1e0
[ 1147.861883][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1147.861883][   T10] 
[ 1147.863431][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1147.863431][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1147.863431][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1147.863431][   T10]      ipv6_find_idev+0x102/0x170
[ 1147.863431][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1147.863431][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1147.863431][   T10]      netlink_rcv_skb+0x130/0x360
[ 1147.863431][   T10]      netlink_unicast+0x449/0x710
[ 1147.863431][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1147.863431][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1147.863431][   T10]      ___sys_sendmsg+0xee/0x170
[ 1147.863431][   T10]      __sys_sendmsg+0xcd/0x170
[ 1147.863431][   T10]      do_syscall_64+0xc6/0x1e0
[ 1147.863431][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1147.863431][   T10] 
[ 1158.105846][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1158.106770][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1158.106770][   T10]      dst_init+0x84/0x4a0
[ 1158.106770][   T10]      dst_alloc+0x97/0x150
[ 1158.106770][   T10]      ip6_dst_alloc+0x23/0x90
[ 1158.106770][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1158.106770][   T10]      ip6_pol_route+0x56f/0x840
[ 1158.106770][   T10]      fib6_rule_lookup+0x456/0x630
[ 1158.106770][   T10]      ip6_route_input+0x59c/0xa50
[ 1158.106770][   T10]      ipv6_rcv+0x397/0x810
[ 1158.106770][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1158.106770][   T10]      process_backlog+0x101/0x620
[ 1158.106770][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1158.106770][   T10]      net_rx_action+0x495/0xbe0
[ 1158.106770][   T10]      __do_softirq+0x1b5/0x7f6
[ 1158.106770][   T10] 
[ 1158.108542][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1158.108542][   T10]      netdev_get_by_index+0x5e/0x80
[ 1158.108542][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1158.108542][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1158.108542][   T10]      ip6_route_add+0x1c/0x140
[ 1158.108542][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1158.108542][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1158.108542][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1158.108542][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1158.108542][   T10]      netlink_rcv_skb+0x130/0x360
[ 1158.108542][   T10]      netlink_unicast+0x449/0x710
[ 1158.108542][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1158.108542][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1158.108542][   T10]      ___sys_sendmsg+0xee/0x170
[ 1158.108542][   T10]      __sys_sendmsg+0xcd/0x170
[ 1158.108542][   T10]      do_syscall_64+0xc6/0x1e0
[ 1158.108542][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1158.108542][   T10] 
[ 1158.110601][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1158.110601][   T10]      netdev_get_by_index+0x5e/0x80
[ 1158.110601][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1158.110601][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1158.110601][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1158.110601][   T10]      ipv6_add_addr+0x411/0x2000
[ 1158.110601][   T10]      inet6_addr_add+0x30e/0xa40
[ 1158.110601][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1158.110601][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1158.110601][   T10]      netlink_rcv_skb+0x130/0x360
[ 1158.110601][   T10]      netlink_unicast+0x449/0x710
[ 1158.110601][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1158.110601][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1158.110601][   T10]      ___sys_sendmsg+0xee/0x170
[ 1158.110601][   T10]      __sys_sendmsg+0xcd/0x170
[ 1158.110601][   T10]      do_syscall_64+0xc6/0x1e0
[ 1158.110601][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1158.110601][   T10] 
[ 1158.112646][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1158.112646][   T10]      netdev_get_by_index+0x5e/0x80
[ 1158.112646][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1158.112646][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1158.112646][   T10]      ip6_route_add+0x1c/0x140
[ 1158.112646][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1158.112646][   T10]      addrconf_add_dev+0xe2/0x170
[ 1158.112646][   T10]      inet6_addr_add+0x12f/0xa40
[ 1158.112646][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1158.112646][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1158.112646][   T10]      netlink_rcv_skb+0x130/0x360
[ 1158.112646][   T10]      netlink_unicast+0x449/0x710
[ 1158.112646][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1158.112646][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1158.112646][   T10]      ___sys_sendmsg+0xee/0x170
[ 1158.112646][   T10]      __sys_sendmsg+0xcd/0x170
[ 1158.112646][   T10]      do_syscall_64+0xc6/0x1e0
[ 1158.112646][   T10] 
[ 1158.114664][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1158.114664][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1158.114664][   T10]      ipv6_find_idev+0x102/0x170
[ 1158.114664][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1158.114664][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1158.114664][   T10]      netlink_rcv_skb+0x130/0x360
[ 1158.114664][   T10]      netlink_unicast+0x449/0x710
[ 1158.114664][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1158.114664][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1158.114664][   T10]      ___sys_sendmsg+0xee/0x170
[ 1158.114664][   T10]      __sys_sendmsg+0xcd/0x170
[ 1158.114664][   T10]      do_syscall_64+0xc6/0x1e0
[ 1158.114664][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1158.114664][   T10] 
[ 1158.116210][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1158.116210][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1158.116210][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1158.116210][   T10]      ipv6_find_idev+0x102/0x170
[ 1158.116210][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1158.116210][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1158.116210][   T10]      netlink_rcv_skb+0x130/0x360
[ 1158.116210][   T10]      netlink_unicast+0x449/0x710
[ 1158.116210][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1158.116210][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1158.116210][   T10]      ___sys_sendmsg+0xee/0x170
[ 1158.116210][   T10]      __sys_sendmsg+0xcd/0x170
[ 1158.116210][   T10]      do_syscall_64+0xc6/0x1e0
[ 1158.116210][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1158.116210][   T10] 
[ 1158.117929][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1158.118177][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1158.118177][   T10]      dst_init+0x84/0x4a0
[ 1158.118177][   T10]      dst_alloc+0x97/0x150
[ 1158.118177][   T10]      ip6_dst_alloc+0x23/0x90
[ 1158.118177][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1158.118177][   T10]      ip6_pol_route+0x56f/0x840
[ 1158.118177][   T10]      fib6_rule_lookup+0x456/0x630
[ 1158.118177][   T10]      ip6_route_input+0x59c/0xa50
[ 1158.118177][   T10]      ipv6_rcv+0x397/0x810
[ 1158.118177][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1158.118177][   T10]      process_backlog+0x101/0x620
[ 1158.118177][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1158.118177][   T10]      net_rx_action+0x495/0xbe0
[ 1158.118177][   T10]      __do_softirq+0x1b5/0x7f6
[ 1158.118177][   T10] 
[ 1158.119823][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1158.119823][   T10]      netdev_get_by_index+0x5e/0x80
[ 1158.119823][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1158.119823][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1158.119823][   T10]      ip6_route_add+0x1c/0x140
[ 1158.119823][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1158.119823][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1158.119823][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1158.119823][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1158.119823][   T10]      netlink_rcv_skb+0x130/0x360
[ 1158.119823][   T10]      netlink_unicast+0x449/0x710
[ 1158.119823][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1158.119823][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1158.119823][   T10]      ___sys_sendmsg+0xee/0x170
[ 1158.119823][   T10]      __sys_sendmsg+0xcd/0x170
[ 1158.119823][   T10]      do_syscall_64+0xc6/0x1e0
[ 1158.119823][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1158.119823][   T10] 
[ 1158.121848][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1158.121848][   T10]      netdev_get_by_index+0x5e/0x80
[ 1158.121848][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1158.121848][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1158.121848][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1158.121848][   T10]      ipv6_add_addr+0x411/0x2000
[ 1158.121848][   T10]      inet6_addr_add+0x30e/0xa40
[ 1158.121848][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1158.121848][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1158.121848][   T10]      netlink_rcv_skb+0x130/0x360
[ 1158.121848][   T10]      netlink_unicast+0x449/0x710
[ 1158.121848][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1158.121848][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1158.121848][   T10]      ___sys_sendmsg+0xee/0x170
[ 1158.121848][   T10]      __sys_sendmsg+0xcd/0x170
[ 1158.121848][   T10]      do_syscall_64+0xc6/0x1e0
[ 1158.121848][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1158.121848][   T10] 
[ 1158.123862][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1158.123862][   T10]      netdev_get_by_index+0x5e/0x80
[ 1158.123862][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1158.123862][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1158.123862][   T10]      ip6_route_add+0x1c/0x140
[ 1158.123862][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1158.123862][   T10]      addrconf_add_dev+0xe2/0x170
[ 1158.123862][   T10]      inet6_addr_add+0x12f/0xa40
[ 1158.123862][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1158.123862][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1158.123862][   T10]      netlink_rcv_skb+0x130/0x360
[ 1158.123862][   T10]      netlink_unicast+0x449/0x710
[ 1158.123862][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1158.123862][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1158.123862][   T10]      ___sys_sendmsg+0xee/0x170
[ 1158.123862][   T10]      __sys_sendmsg+0xcd/0x170
[ 1158.123862][   T10]      do_syscall_64+0xc6/0x1e0
[ 1158.123862][   T10] 
[ 1158.125858][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1158.125858][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1158.125858][   T10]      ipv6_find_idev+0x102/0x170
[ 1158.125858][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1158.125858][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1158.125858][   T10]      netlink_rcv_skb+0x130/0x360
[ 1158.125858][   T10]      netlink_unicast+0x449/0x710
[ 1158.125858][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1158.125858][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1158.125858][   T10]      ___sys_sendmsg+0xee/0x170
[ 1158.125858][   T10]      __sys_sendmsg+0xcd/0x170
[ 1158.125858][   T10]      do_syscall_64+0xc6/0x1e0
[ 1158.125858][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1158.125858][   T10] 
[ 1158.127405][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1158.127405][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1158.127405][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1158.127405][   T10]      ipv6_find_idev+0x102/0x170
[ 1158.127405][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1158.127405][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1158.127405][   T10]      netlink_rcv_skb+0x130/0x360
[ 1158.127405][   T10]      netlink_unicast+0x449/0x710
[ 1158.127405][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1158.127405][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1158.127405][   T10]      ___sys_sendmsg+0xee/0x170
[ 1158.127405][   T10]      __sys_sendmsg+0xcd/0x170
[ 1158.127405][   T10]      do_syscall_64+0xc6/0x1e0
[ 1158.127405][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1158.127405][   T10] 
[ 1168.369713][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1168.370107][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1168.370107][   T10]      dst_init+0x84/0x4a0
[ 1168.370107][   T10]      dst_alloc+0x97/0x150
[ 1168.370107][   T10]      ip6_dst_alloc+0x23/0x90
[ 1168.370107][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1168.370107][   T10]      ip6_pol_route+0x56f/0x840
[ 1168.370107][   T10]      fib6_rule_lookup+0x456/0x630
[ 1168.370107][   T10]      ip6_route_input+0x59c/0xa50
[ 1168.370107][   T10]      ipv6_rcv+0x397/0x810
[ 1168.370107][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1168.370107][   T10]      process_backlog+0x101/0x620
[ 1168.370107][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1168.370107][   T10]      net_rx_action+0x495/0xbe0
[ 1168.370107][   T10]      __do_softirq+0x1b5/0x7f6
[ 1168.370107][   T10] 
[ 1168.371808][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1168.371808][   T10]      netdev_get_by_index+0x5e/0x80
[ 1168.371808][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1168.371808][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1168.371808][   T10]      ip6_route_add+0x1c/0x140
[ 1168.371808][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1168.371808][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1168.371808][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1168.371808][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1168.371808][   T10]      netlink_rcv_skb+0x130/0x360
[ 1168.371808][   T10]      netlink_unicast+0x449/0x710
[ 1168.371808][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1168.371808][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1168.371808][   T10]      ___sys_sendmsg+0xee/0x170
[ 1168.371808][   T10]      __sys_sendmsg+0xcd/0x170
[ 1168.371808][   T10]      do_syscall_64+0xc6/0x1e0
[ 1168.371808][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1168.371808][   T10] 
[ 1168.373835][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1168.373835][   T10]      netdev_get_by_index+0x5e/0x80
[ 1168.373835][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1168.373835][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1168.373835][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1168.373835][   T10]      ipv6_add_addr+0x411/0x2000
[ 1168.373835][   T10]      inet6_addr_add+0x30e/0xa40
[ 1168.373835][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1168.373835][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1168.373835][   T10]      netlink_rcv_skb+0x130/0x360
[ 1168.373835][   T10]      netlink_unicast+0x449/0x710
[ 1168.373835][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1168.373835][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1168.373835][   T10]      ___sys_sendmsg+0xee/0x170
[ 1168.373835][   T10]      __sys_sendmsg+0xcd/0x170
[ 1168.373835][   T10]      do_syscall_64+0xc6/0x1e0
[ 1168.373835][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1168.373835][   T10] 
[ 1168.375868][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1168.375868][   T10]      netdev_get_by_index+0x5e/0x80
[ 1168.375868][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1168.375868][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1168.375868][   T10]      ip6_route_add+0x1c/0x140
[ 1168.375868][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1168.375868][   T10]      addrconf_add_dev+0xe2/0x170
[ 1168.375868][   T10]      inet6_addr_add+0x12f/0xa40
[ 1168.375868][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1168.375868][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1168.375868][   T10]      netlink_rcv_skb+0x130/0x360
[ 1168.375868][   T10]      netlink_unicast+0x449/0x710
[ 1168.375868][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1168.375868][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1168.375868][   T10]      ___sys_sendmsg+0xee/0x170
[ 1168.375868][   T10]      __sys_sendmsg+0xcd/0x170
[ 1168.375868][   T10]      do_syscall_64+0xc6/0x1e0
[ 1168.375868][   T10] 
[ 1168.377882][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1168.377882][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1168.377882][   T10]      ipv6_find_idev+0x102/0x170
[ 1168.377882][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1168.377882][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1168.377882][   T10]      netlink_rcv_skb+0x130/0x360
[ 1168.377882][   T10]      netlink_unicast+0x449/0x710
[ 1168.377882][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1168.377882][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1168.377882][   T10]      ___sys_sendmsg+0xee/0x170
[ 1168.377882][   T10]      __sys_sendmsg+0xcd/0x170
[ 1168.377882][   T10]      do_syscall_64+0xc6/0x1e0
[ 1168.377882][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1168.377882][   T10] 
[ 1168.379444][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1168.379444][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1168.379444][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1168.379444][   T10]      ipv6_find_idev+0x102/0x170
[ 1168.379444][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1168.379444][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1168.379444][   T10]      netlink_rcv_skb+0x130/0x360
[ 1168.379444][   T10]      netlink_unicast+0x449/0x710
[ 1168.379444][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1168.379444][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1168.379444][   T10]      ___sys_sendmsg+0xee/0x170
[ 1168.379444][   T10]      __sys_sendmsg+0xcd/0x170
[ 1168.379444][   T10]      do_syscall_64+0xc6/0x1e0
[ 1168.379444][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1168.379444][   T10] 
[ 1168.381146][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1168.381387][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1168.381387][   T10]      dst_init+0x84/0x4a0
[ 1168.381387][   T10]      dst_alloc+0x97/0x150
[ 1168.381387][   T10]      ip6_dst_alloc+0x23/0x90
[ 1168.381387][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1168.381387][   T10]      ip6_pol_route+0x56f/0x840
[ 1168.381387][   T10]      fib6_rule_lookup+0x456/0x630
[ 1168.381387][   T10]      ip6_route_input+0x59c/0xa50
[ 1168.381387][   T10]      ipv6_rcv+0x397/0x810
[ 1168.381387][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1168.381387][   T10]      process_backlog+0x101/0x620
[ 1168.381387][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1168.381387][   T10]      net_rx_action+0x495/0xbe0
[ 1168.381387][   T10]      __do_softirq+0x1b5/0x7f6
[ 1168.381387][   T10] 
[ 1168.383051][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1168.383051][   T10]      netdev_get_by_index+0x5e/0x80
[ 1168.383051][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1168.383051][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1168.383051][   T10]      ip6_route_add+0x1c/0x140
[ 1168.383051][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1168.383051][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1168.383051][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1168.383051][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1168.383051][   T10]      netlink_rcv_skb+0x130/0x360
[ 1168.383051][   T10]      netlink_unicast+0x449/0x710
[ 1168.383051][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1168.383051][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1168.383051][   T10]      ___sys_sendmsg+0xee/0x170
[ 1168.383051][   T10]      __sys_sendmsg+0xcd/0x170
[ 1168.383051][   T10]      do_syscall_64+0xc6/0x1e0
[ 1168.383051][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1168.383051][   T10] 
[ 1168.385058][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1168.385058][   T10]      netdev_get_by_index+0x5e/0x80
[ 1168.385058][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1168.385058][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1168.385058][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1168.385058][   T10]      ipv6_add_addr+0x411/0x2000
[ 1168.385058][   T10]      inet6_addr_add+0x30e/0xa40
[ 1168.385058][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1168.385058][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1168.385058][   T10]      netlink_rcv_skb+0x130/0x360
[ 1168.385058][   T10]      netlink_unicast+0x449/0x710
[ 1168.385058][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1168.385058][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1168.385058][   T10]      ___sys_sendmsg+0xee/0x170
[ 1168.385058][   T10]      __sys_sendmsg+0xcd/0x170
[ 1168.385058][   T10]      do_syscall_64+0xc6/0x1e0
[ 1168.385058][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1168.385058][   T10] 
[ 1168.387076][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1168.387076][   T10]      netdev_get_by_index+0x5e/0x80
[ 1168.387076][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1168.387076][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1168.387076][   T10]      ip6_route_add+0x1c/0x140
[ 1168.387076][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1168.387076][   T10]      addrconf_add_dev+0xe2/0x170
[ 1168.387076][   T10]      inet6_addr_add+0x12f/0xa40
[ 1168.387076][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1168.387076][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1168.387076][   T10]      netlink_rcv_skb+0x130/0x360
[ 1168.387076][   T10]      netlink_unicast+0x449/0x710
[ 1168.387076][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1168.387076][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1168.387076][   T10]      ___sys_sendmsg+0xee/0x170
[ 1168.387076][   T10]      __sys_sendmsg+0xcd/0x170
[ 1168.387076][   T10]      do_syscall_64+0xc6/0x1e0
[ 1168.387076][   T10] 
[ 1168.389053][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1168.389053][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1168.389053][   T10]      ipv6_find_idev+0x102/0x170
[ 1168.389053][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1168.389053][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1168.389053][   T10]      netlink_rcv_skb+0x130/0x360
[ 1168.389053][   T10]      netlink_unicast+0x449/0x710
[ 1168.389053][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1168.389053][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1168.389053][   T10]      ___sys_sendmsg+0xee/0x170
[ 1168.389053][   T10]      __sys_sendmsg+0xcd/0x170
[ 1168.389053][   T10]      do_syscall_64+0xc6/0x1e0
[ 1168.389053][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1168.389053][   T10] 
[ 1168.390608][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1168.390608][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1168.390608][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1168.390608][   T10]      ipv6_find_idev+0x102/0x170
[ 1168.390608][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1168.390608][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1168.390608][   T10]      netlink_rcv_skb+0x130/0x360
[ 1168.390608][   T10]      netlink_unicast+0x449/0x710
[ 1168.390608][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1168.390608][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1168.390608][   T10]      ___sys_sendmsg+0xee/0x170
[ 1168.390608][   T10]      __sys_sendmsg+0xcd/0x170
[ 1168.390608][   T10]      do_syscall_64+0xc6/0x1e0
[ 1168.390608][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1168.390608][   T10] 
[ 1178.633801][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1178.634216][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1178.634216][   T10]      dst_init+0x84/0x4a0
[ 1178.634216][   T10]      dst_alloc+0x97/0x150
[ 1178.634216][   T10]      ip6_dst_alloc+0x23/0x90
[ 1178.634216][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1178.634216][   T10]      ip6_pol_route+0x56f/0x840
[ 1178.634216][   T10]      fib6_rule_lookup+0x456/0x630
[ 1178.634216][   T10]      ip6_route_input+0x59c/0xa50
[ 1178.634216][   T10]      ipv6_rcv+0x397/0x810
[ 1178.634216][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1178.634216][   T10]      process_backlog+0x101/0x620
[ 1178.634216][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1178.634216][   T10]      net_rx_action+0x495/0xbe0
[ 1178.634216][   T10]      __do_softirq+0x1b5/0x7f6
[ 1178.634216][   T10] 
[ 1178.635898][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1178.635898][   T10]      netdev_get_by_index+0x5e/0x80
[ 1178.635898][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1178.635898][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1178.635898][   T10]      ip6_route_add+0x1c/0x140
[ 1178.635898][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1178.635898][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1178.635898][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1178.635898][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1178.635898][   T10]      netlink_rcv_skb+0x130/0x360
[ 1178.635898][   T10]      netlink_unicast+0x449/0x710
[ 1178.635898][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1178.635898][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1178.635898][   T10]      ___sys_sendmsg+0xee/0x170
[ 1178.635898][   T10]      __sys_sendmsg+0xcd/0x170
[ 1178.635898][   T10]      do_syscall_64+0xc6/0x1e0
[ 1178.635898][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1178.635898][   T10] 
[ 1178.637945][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1178.637945][   T10]      netdev_get_by_index+0x5e/0x80
[ 1178.637945][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1178.637945][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1178.637945][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1178.637945][   T10]      ipv6_add_addr+0x411/0x2000
[ 1178.637945][   T10]      inet6_addr_add+0x30e/0xa40
[ 1178.637945][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1178.637945][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1178.637945][   T10]      netlink_rcv_skb+0x130/0x360
[ 1178.637945][   T10]      netlink_unicast+0x449/0x710
[ 1178.637945][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1178.637945][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1178.637945][   T10]      ___sys_sendmsg+0xee/0x170
[ 1178.637945][   T10]      __sys_sendmsg+0xcd/0x170
[ 1178.637945][   T10]      do_syscall_64+0xc6/0x1e0
[ 1178.637945][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1178.637945][   T10] 
[ 1178.639974][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1178.639974][   T10]      netdev_get_by_index+0x5e/0x80
[ 1178.639974][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1178.639974][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1178.639974][   T10]      ip6_route_add+0x1c/0x140
[ 1178.639974][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1178.639974][   T10]      addrconf_add_dev+0xe2/0x170
[ 1178.639974][   T10]      inet6_addr_add+0x12f/0xa40
[ 1178.639974][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1178.639974][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1178.639974][   T10]      netlink_rcv_skb+0x130/0x360
[ 1178.639974][   T10]      netlink_unicast+0x449/0x710
[ 1178.639974][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1178.639974][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1178.639974][   T10]      ___sys_sendmsg+0xee/0x170
[ 1178.639974][   T10]      __sys_sendmsg+0xcd/0x170
[ 1178.639974][   T10]      do_syscall_64+0xc6/0x1e0
[ 1178.639974][   T10] 
[ 1178.641940][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1178.641940][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1178.641940][   T10]      ipv6_find_idev+0x102/0x170
[ 1178.641940][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1178.641940][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1178.641940][   T10]      netlink_rcv_skb+0x130/0x360
[ 1178.641940][   T10]      netlink_unicast+0x449/0x710
[ 1178.641940][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1178.641940][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1178.641940][   T10]      ___sys_sendmsg+0xee/0x170
[ 1178.641940][   T10]      __sys_sendmsg+0xcd/0x170
[ 1178.641940][   T10]      do_syscall_64+0xc6/0x1e0
[ 1178.641940][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1178.641940][   T10] 
[ 1178.643479][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1178.643479][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1178.643479][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1178.643479][   T10]      ipv6_find_idev+0x102/0x170
[ 1178.643479][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1178.643479][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1178.643479][   T10]      netlink_rcv_skb+0x130/0x360
[ 1178.643479][   T10]      netlink_unicast+0x449/0x710
[ 1178.643479][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1178.643479][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1178.643479][   T10]      ___sys_sendmsg+0xee/0x170
[ 1178.643479][   T10]      __sys_sendmsg+0xcd/0x170
[ 1178.643479][   T10]      do_syscall_64+0xc6/0x1e0
[ 1178.643479][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1178.643479][   T10] 
[ 1178.645164][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1178.645407][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1178.645407][   T10]      dst_init+0x84/0x4a0
[ 1178.645407][   T10]      dst_alloc+0x97/0x150
[ 1178.645407][   T10]      ip6_dst_alloc+0x23/0x90
[ 1178.645407][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1178.645407][   T10]      ip6_pol_route+0x56f/0x840
[ 1178.645407][   T10]      fib6_rule_lookup+0x456/0x630
[ 1178.645407][   T10]      ip6_route_input+0x59c/0xa50
[ 1178.645407][   T10]      ipv6_rcv+0x397/0x810
[ 1178.645407][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1178.645407][   T10]      process_backlog+0x101/0x620
[ 1178.645407][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1178.645407][   T10]      net_rx_action+0x495/0xbe0
[ 1178.645407][   T10]      __do_softirq+0x1b5/0x7f6
[ 1178.645407][   T10] 
[ 1178.647053][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1178.647053][   T10]      netdev_get_by_index+0x5e/0x80
[ 1178.647053][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1178.647053][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1178.647053][   T10]      ip6_route_add+0x1c/0x140
[ 1178.647053][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1178.647053][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1178.647053][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1178.647053][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1178.647053][   T10]      netlink_rcv_skb+0x130/0x360
[ 1178.647053][   T10]      netlink_unicast+0x449/0x710
[ 1178.647053][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1178.647053][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1178.647053][   T10]      ___sys_sendmsg+0xee/0x170
[ 1178.647053][   T10]      __sys_sendmsg+0xcd/0x170
[ 1178.647053][   T10]      do_syscall_64+0xc6/0x1e0
[ 1178.647053][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1178.647053][   T10] 
[ 1178.649047][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1178.649047][   T10]      netdev_get_by_index+0x5e/0x80
[ 1178.649047][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1178.649047][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1178.649047][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1178.649047][   T10]      ipv6_add_addr+0x411/0x2000
[ 1178.649047][   T10]      inet6_addr_add+0x30e/0xa40
[ 1178.649047][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1178.649047][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1178.649047][   T10]      netlink_rcv_skb+0x130/0x360
[ 1178.649047][   T10]      netlink_unicast+0x449/0x710
[ 1178.649047][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1178.649047][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1178.649047][   T10]      ___sys_sendmsg+0xee/0x170
[ 1178.649047][   T10]      __sys_sendmsg+0xcd/0x170
[ 1178.649047][   T10]      do_syscall_64+0xc6/0x1e0
[ 1178.649047][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1178.649047][   T10] 
[ 1178.651051][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1178.651051][   T10]      netdev_get_by_index+0x5e/0x80
[ 1178.651051][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1178.651051][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1178.651051][   T10]      ip6_route_add+0x1c/0x140
[ 1178.651051][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1178.651051][   T10]      addrconf_add_dev+0xe2/0x170
[ 1178.651051][   T10]      inet6_addr_add+0x12f/0xa40
[ 1178.651051][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1178.651051][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1178.651051][   T10]      netlink_rcv_skb+0x130/0x360
[ 1178.651051][   T10]      netlink_unicast+0x449/0x710
[ 1178.651051][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1178.651051][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1178.651051][   T10]      ___sys_sendmsg+0xee/0x170
[ 1178.651051][   T10]      __sys_sendmsg+0xcd/0x170
[ 1178.651051][   T10]      do_syscall_64+0xc6/0x1e0
[ 1178.651051][   T10] 
[ 1178.653026][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1178.653026][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1178.653026][   T10]      ipv6_find_idev+0x102/0x170
[ 1178.653026][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1178.653026][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1178.653026][   T10]      netlink_rcv_skb+0x130/0x360
[ 1178.653026][   T10]      netlink_unicast+0x449/0x710
[ 1178.653026][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1178.653026][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1178.653026][   T10]      ___sys_sendmsg+0xee/0x170
[ 1178.653026][   T10]      __sys_sendmsg+0xcd/0x170
[ 1178.653026][   T10]      do_syscall_64+0xc6/0x1e0
[ 1178.653026][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1178.653026][   T10] 
[ 1178.654569][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1178.654569][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1178.654569][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1178.654569][   T10]      ipv6_find_idev+0x102/0x170
[ 1178.654569][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1178.654569][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1178.654569][   T10]      netlink_rcv_skb+0x130/0x360
[ 1178.654569][   T10]      netlink_unicast+0x449/0x710
[ 1178.654569][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1178.654569][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1178.654569][   T10]      ___sys_sendmsg+0xee/0x170
[ 1178.654569][   T10]      __sys_sendmsg+0xcd/0x170
[ 1178.654569][   T10]      do_syscall_64+0xc6/0x1e0
[ 1178.654569][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1178.654569][   T10] 
[ 1189.137861][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1189.138292][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1189.138292][   T10]      dst_init+0x84/0x4a0
[ 1189.138292][   T10]      dst_alloc+0x97/0x150
[ 1189.138292][   T10]      ip6_dst_alloc+0x23/0x90
[ 1189.138292][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1189.138292][   T10]      ip6_pol_route+0x56f/0x840
[ 1189.138292][   T10]      fib6_rule_lookup+0x456/0x630
[ 1189.138292][   T10]      ip6_route_input+0x59c/0xa50
[ 1189.138292][   T10]      ipv6_rcv+0x397/0x810
[ 1189.138292][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1189.138292][   T10]      process_backlog+0x101/0x620
[ 1189.138292][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1189.138292][   T10]      net_rx_action+0x495/0xbe0
[ 1189.138292][   T10]      __do_softirq+0x1b5/0x7f6
[ 1189.138292][   T10] 
[ 1189.139963][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1189.139963][   T10]      netdev_get_by_index+0x5e/0x80
[ 1189.139963][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1189.139963][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1189.139963][   T10]      ip6_route_add+0x1c/0x140
[ 1189.139963][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1189.139963][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1189.139963][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1189.139963][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1189.139963][   T10]      netlink_rcv_skb+0x130/0x360
[ 1189.139963][   T10]      netlink_unicast+0x449/0x710
[ 1189.139963][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1189.139963][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1189.139963][   T10]      ___sys_sendmsg+0xee/0x170
[ 1189.139963][   T10]      __sys_sendmsg+0xcd/0x170
[ 1189.139963][   T10]      do_syscall_64+0xc6/0x1e0
[ 1189.139963][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1189.139963][   T10] 
[ 1189.141974][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1189.141974][   T10]      netdev_get_by_index+0x5e/0x80
[ 1189.141974][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1189.141974][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1189.141974][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1189.141974][   T10]      ipv6_add_addr+0x411/0x2000
[ 1189.141974][   T10]      inet6_addr_add+0x30e/0xa40
[ 1189.141974][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1189.141974][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1189.141974][   T10]      netlink_rcv_skb+0x130/0x360
[ 1189.141974][   T10]      netlink_unicast+0x449/0x710
[ 1189.141974][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1189.141974][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1189.141974][   T10]      ___sys_sendmsg+0xee/0x170
[ 1189.141974][   T10]      __sys_sendmsg+0xcd/0x170
[ 1189.141974][   T10]      do_syscall_64+0xc6/0x1e0
[ 1189.141974][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1189.141974][   T10] 
[ 1189.144100][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1189.144100][   T10]      netdev_get_by_index+0x5e/0x80
[ 1189.144100][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1189.144100][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1189.144100][   T10]      ip6_route_add+0x1c/0x140
[ 1189.144100][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1189.144100][   T10]      addrconf_add_dev+0xe2/0x170
[ 1189.144100][   T10]      inet6_addr_add+0x12f/0xa40
[ 1189.144100][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1189.144100][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1189.144100][   T10]      netlink_rcv_skb+0x130/0x360
[ 1189.144100][   T10]      netlink_unicast+0x449/0x710
[ 1189.144100][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1189.144100][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1189.144100][   T10]      ___sys_sendmsg+0xee/0x170
[ 1189.144100][   T10]      __sys_sendmsg+0xcd/0x170
[ 1189.144100][   T10]      do_syscall_64+0xc6/0x1e0
[ 1189.144100][   T10] 
[ 1189.146073][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1189.146073][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1189.146073][   T10]      ipv6_find_idev+0x102/0x170
[ 1189.146073][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1189.146073][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1189.146073][   T10]      netlink_rcv_skb+0x130/0x360
[ 1189.146073][   T10]      netlink_unicast+0x449/0x710
[ 1189.146073][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1189.146073][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1189.146073][   T10]      ___sys_sendmsg+0xee/0x170
[ 1189.146073][   T10]      __sys_sendmsg+0xcd/0x170
[ 1189.146073][   T10]      do_syscall_64+0xc6/0x1e0
[ 1189.146073][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1189.146073][   T10] 
[ 1189.147638][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1189.147638][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1189.147638][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1189.147638][   T10]      ipv6_find_idev+0x102/0x170
[ 1189.147638][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1189.147638][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1189.147638][   T10]      netlink_rcv_skb+0x130/0x360
[ 1189.147638][   T10]      netlink_unicast+0x449/0x710
[ 1189.147638][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1189.147638][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1189.147638][   T10]      ___sys_sendmsg+0xee/0x170
[ 1189.147638][   T10]      __sys_sendmsg+0xcd/0x170
[ 1189.147638][   T10]      do_syscall_64+0xc6/0x1e0
[ 1189.147638][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1189.147638][   T10] 
[ 1189.149335][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1189.149578][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1189.149578][   T10]      dst_init+0x84/0x4a0
[ 1189.149578][   T10]      dst_alloc+0x97/0x150
[ 1189.149578][   T10]      ip6_dst_alloc+0x23/0x90
[ 1189.149578][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1189.149578][   T10]      ip6_pol_route+0x56f/0x840
[ 1189.149578][   T10]      fib6_rule_lookup+0x456/0x630
[ 1189.149578][   T10]      ip6_route_input+0x59c/0xa50
[ 1189.149578][   T10]      ipv6_rcv+0x397/0x810
[ 1189.149578][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1189.149578][   T10]      process_backlog+0x101/0x620
[ 1189.149578][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1189.149578][   T10]      net_rx_action+0x495/0xbe0
[ 1189.149578][   T10]      __do_softirq+0x1b5/0x7f6
[ 1189.149578][   T10] 
[ 1189.151216][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1189.151216][   T10]      netdev_get_by_index+0x5e/0x80
[ 1189.151216][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1189.151216][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1189.151216][   T10]      ip6_route_add+0x1c/0x140
[ 1189.151216][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1189.151216][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1189.151216][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1189.151216][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1189.151216][   T10]      netlink_rcv_skb+0x130/0x360
[ 1189.151216][   T10]      netlink_unicast+0x449/0x710
[ 1189.151216][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1189.151216][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1189.151216][   T10]      ___sys_sendmsg+0xee/0x170
[ 1189.151216][   T10]      __sys_sendmsg+0xcd/0x170
[ 1189.151216][   T10]      do_syscall_64+0xc6/0x1e0
[ 1189.151216][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1189.151216][   T10] 
[ 1189.153229][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1189.153229][   T10]      netdev_get_by_index+0x5e/0x80
[ 1189.153229][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1189.153229][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1189.153229][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1189.153229][   T10]      ipv6_add_addr+0x411/0x2000
[ 1189.153229][   T10]      inet6_addr_add+0x30e/0xa40
[ 1189.153229][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1189.153229][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1189.153229][   T10]      netlink_rcv_skb+0x130/0x360
[ 1189.153229][   T10]      netlink_unicast+0x449/0x710
[ 1189.153229][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1189.153229][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1189.153229][   T10]      ___sys_sendmsg+0xee/0x170
[ 1189.153229][   T10]      __sys_sendmsg+0xcd/0x170
[ 1189.153229][   T10]      do_syscall_64+0xc6/0x1e0
[ 1189.153229][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1189.153229][   T10] 
[ 1189.155223][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1189.155223][   T10]      netdev_get_by_index+0x5e/0x80
[ 1189.155223][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1189.155223][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1189.155223][   T10]      ip6_route_add+0x1c/0x140
[ 1189.155223][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1189.155223][   T10]      addrconf_add_dev+0xe2/0x170
[ 1189.155223][   T10]      inet6_addr_add+0x12f/0xa40
[ 1189.155223][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1189.155223][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1189.155223][   T10]      netlink_rcv_skb+0x130/0x360
[ 1189.155223][   T10]      netlink_unicast+0x449/0x710
[ 1189.155223][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1189.155223][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1189.155223][   T10]      ___sys_sendmsg+0xee/0x170
[ 1189.155223][   T10]      __sys_sendmsg+0xcd/0x170
[ 1189.155223][   T10]      do_syscall_64+0xc6/0x1e0
[ 1189.155223][   T10] 
[ 1189.157194][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1189.157194][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1189.157194][   T10]      ipv6_find_idev+0x102/0x170
[ 1189.157194][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1189.157194][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1189.157194][   T10]      netlink_rcv_skb+0x130/0x360
[ 1189.157194][   T10]      netlink_unicast+0x449/0x710
[ 1189.157194][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1189.157194][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1189.157194][   T10]      ___sys_sendmsg+0xee/0x170
[ 1189.157194][   T10]      __sys_sendmsg+0xcd/0x170
[ 1189.157194][   T10]      do_syscall_64+0xc6/0x1e0
[ 1189.157194][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1189.157194][   T10] 
[ 1189.158736][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1189.158736][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1189.158736][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1189.158736][   T10]      ipv6_find_idev+0x102/0x170
[ 1189.158736][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1189.158736][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1189.158736][   T10]      netlink_rcv_skb+0x130/0x360
[ 1189.158736][   T10]      netlink_unicast+0x449/0x710
[ 1189.158736][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1189.158736][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1189.158736][   T10]      ___sys_sendmsg+0xee/0x170
[ 1189.158736][   T10]      __sys_sendmsg+0xcd/0x170
[ 1189.158736][   T10]      do_syscall_64+0xc6/0x1e0
[ 1189.158736][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1189.158736][   T10] 
[ 1199.241714][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1199.242125][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1199.242125][   T10]      dst_init+0x84/0x4a0
[ 1199.242125][   T10]      dst_alloc+0x97/0x150
[ 1199.242125][   T10]      ip6_dst_alloc+0x23/0x90
[ 1199.242125][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1199.242125][   T10]      ip6_pol_route+0x56f/0x840
[ 1199.242125][   T10]      fib6_rule_lookup+0x456/0x630
[ 1199.242125][   T10]      ip6_route_input+0x59c/0xa50
[ 1199.242125][   T10]      ipv6_rcv+0x397/0x810
[ 1199.242125][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1199.242125][   T10]      process_backlog+0x101/0x620
[ 1199.242125][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1199.242125][   T10]      net_rx_action+0x495/0xbe0
[ 1199.242125][   T10]      __do_softirq+0x1b5/0x7f6
[ 1199.242125][   T10] 
[ 1199.243803][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1199.243803][   T10]      netdev_get_by_index+0x5e/0x80
[ 1199.243803][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1199.243803][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1199.243803][   T10]      ip6_route_add+0x1c/0x140
[ 1199.243803][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1199.243803][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1199.243803][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1199.243803][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1199.243803][   T10]      netlink_rcv_skb+0x130/0x360
[ 1199.243803][   T10]      netlink_unicast+0x449/0x710
[ 1199.243803][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1199.243803][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1199.243803][   T10]      ___sys_sendmsg+0xee/0x170
[ 1199.243803][   T10]      __sys_sendmsg+0xcd/0x170
[ 1199.243803][   T10]      do_syscall_64+0xc6/0x1e0
[ 1199.243803][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1199.243803][   T10] 
[ 1199.245805][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1199.245805][   T10]      netdev_get_by_index+0x5e/0x80
[ 1199.245805][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1199.245805][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1199.245805][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1199.245805][   T10]      ipv6_add_addr+0x411/0x2000
[ 1199.245805][   T10]      inet6_addr_add+0x30e/0xa40
[ 1199.245805][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1199.245805][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1199.245805][   T10]      netlink_rcv_skb+0x130/0x360
[ 1199.245805][   T10]      netlink_unicast+0x449/0x710
[ 1199.245805][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1199.245805][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1199.245805][   T10]      ___sys_sendmsg+0xee/0x170
[ 1199.245805][   T10]      __sys_sendmsg+0xcd/0x170
[ 1199.245805][   T10]      do_syscall_64+0xc6/0x1e0
[ 1199.245805][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1199.245805][   T10] 
[ 1199.247812][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1199.247812][   T10]      netdev_get_by_index+0x5e/0x80
[ 1199.247812][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1199.247812][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1199.247812][   T10]      ip6_route_add+0x1c/0x140
[ 1199.247812][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1199.247812][   T10]      addrconf_add_dev+0xe2/0x170
[ 1199.247812][   T10]      inet6_addr_add+0x12f/0xa40
[ 1199.247812][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1199.247812][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1199.247812][   T10]      netlink_rcv_skb+0x130/0x360
[ 1199.247812][   T10]      netlink_unicast+0x449/0x710
[ 1199.247812][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1199.247812][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1199.247812][   T10]      ___sys_sendmsg+0xee/0x170
[ 1199.247812][   T10]      __sys_sendmsg+0xcd/0x170
[ 1199.247812][   T10]      do_syscall_64+0xc6/0x1e0
[ 1199.247812][   T10] 
[ 1199.249770][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1199.249770][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1199.249770][   T10]      ipv6_find_idev+0x102/0x170
[ 1199.249770][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1199.249770][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1199.249770][   T10]      netlink_rcv_skb+0x130/0x360
[ 1199.249770][   T10]      netlink_unicast+0x449/0x710
[ 1199.249770][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1199.249770][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1199.249770][   T10]      ___sys_sendmsg+0xee/0x170
[ 1199.249770][   T10]      __sys_sendmsg+0xcd/0x170
[ 1199.249770][   T10]      do_syscall_64+0xc6/0x1e0
[ 1199.249770][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1199.249770][   T10] 
[ 1199.251308][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1199.251308][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1199.251308][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1199.251308][   T10]      ipv6_find_idev+0x102/0x170
[ 1199.251308][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1199.251308][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1199.251308][   T10]      netlink_rcv_skb+0x130/0x360
[ 1199.251308][   T10]      netlink_unicast+0x449/0x710
[ 1199.251308][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1199.251308][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1199.251308][   T10]      ___sys_sendmsg+0xee/0x170
[ 1199.251308][   T10]      __sys_sendmsg+0xcd/0x170
[ 1199.251308][   T10]      do_syscall_64+0xc6/0x1e0
[ 1199.251308][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1199.251308][   T10] 
[ 1199.252994][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1199.253232][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1199.253232][   T10]      dst_init+0x84/0x4a0
[ 1199.253232][   T10]      dst_alloc+0x97/0x150
[ 1199.253232][   T10]      ip6_dst_alloc+0x23/0x90
[ 1199.253232][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1199.253232][   T10]      ip6_pol_route+0x56f/0x840
[ 1199.253232][   T10]      fib6_rule_lookup+0x456/0x630
[ 1199.253232][   T10]      ip6_route_input+0x59c/0xa50
[ 1199.253232][   T10]      ipv6_rcv+0x397/0x810
[ 1199.253232][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1199.253232][   T10]      process_backlog+0x101/0x620
[ 1199.253232][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1199.253232][   T10]      net_rx_action+0x495/0xbe0
[ 1199.253232][   T10]      __do_softirq+0x1b5/0x7f6
[ 1199.253232][   T10] 
[ 1199.254871][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1199.254871][   T10]      netdev_get_by_index+0x5e/0x80
[ 1199.254871][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1199.254871][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1199.254871][   T10]      ip6_route_add+0x1c/0x140
[ 1199.254871][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1199.254871][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1199.254871][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1199.254871][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1199.254871][   T10]      netlink_rcv_skb+0x130/0x360
[ 1199.254871][   T10]      netlink_unicast+0x449/0x710
[ 1199.254871][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1199.254871][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1199.254871][   T10]      ___sys_sendmsg+0xee/0x170
[ 1199.254871][   T10]      __sys_sendmsg+0xcd/0x170
[ 1199.254871][   T10]      do_syscall_64+0xc6/0x1e0
[ 1199.254871][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1199.254871][   T10] 
[ 1199.256877][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1199.256877][   T10]      netdev_get_by_index+0x5e/0x80
[ 1199.256877][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1199.256877][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1199.256877][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1199.256877][   T10]      ipv6_add_addr+0x411/0x2000
[ 1199.256877][   T10]      inet6_addr_add+0x30e/0xa40
[ 1199.256877][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1199.256877][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1199.256877][   T10]      netlink_rcv_skb+0x130/0x360
[ 1199.256877][   T10]      netlink_unicast+0x449/0x710
[ 1199.256877][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1199.256877][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1199.256877][   T10]      ___sys_sendmsg+0xee/0x170
[ 1199.256877][   T10]      __sys_sendmsg+0xcd/0x170
[ 1199.256877][   T10]      do_syscall_64+0xc6/0x1e0
[ 1199.256877][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1199.256877][   T10] 
[ 1199.258875][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1199.258875][   T10]      netdev_get_by_index+0x5e/0x80
[ 1199.258875][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1199.258875][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1199.258875][   T10]      ip6_route_add+0x1c/0x140
[ 1199.258875][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1199.258875][   T10]      addrconf_add_dev+0xe2/0x170
[ 1199.258875][   T10]      inet6_addr_add+0x12f/0xa40
[ 1199.258875][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1199.258875][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1199.258875][   T10]      netlink_rcv_skb+0x130/0x360
[ 1199.258875][   T10]      netlink_unicast+0x449/0x710
[ 1199.258875][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1199.258875][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1199.258875][   T10]      ___sys_sendmsg+0xee/0x170
[ 1199.258875][   T10]      __sys_sendmsg+0xcd/0x170
[ 1199.258875][   T10]      do_syscall_64+0xc6/0x1e0
[ 1199.258875][   T10] 
[ 1199.260844][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1199.260844][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1199.260844][   T10]      ipv6_find_idev+0x102/0x170
[ 1199.260844][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1199.260844][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1199.260844][   T10]      netlink_rcv_skb+0x130/0x360
[ 1199.260844][   T10]      netlink_unicast+0x449/0x710
[ 1199.260844][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1199.260844][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1199.260844][   T10]      ___sys_sendmsg+0xee/0x170
[ 1199.260844][   T10]      __sys_sendmsg+0xcd/0x170
[ 1199.260844][   T10]      do_syscall_64+0xc6/0x1e0
[ 1199.260844][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1199.260844][   T10] 
[ 1199.262381][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1199.262381][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1199.262381][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1199.262381][   T10]      ipv6_find_idev+0x102/0x170
[ 1199.262381][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1199.262381][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1199.262381][   T10]      netlink_rcv_skb+0x130/0x360
[ 1199.262381][   T10]      netlink_unicast+0x449/0x710
[ 1199.262381][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1199.262381][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1199.262381][   T10]      ___sys_sendmsg+0xee/0x170
[ 1199.262381][   T10]      __sys_sendmsg+0xcd/0x170
[ 1199.262381][   T10]      do_syscall_64+0xc6/0x1e0
[ 1199.262381][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1199.262381][   T10] 
[ 1209.497802][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1209.498388][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1209.498388][   T10]      dst_init+0x84/0x4a0
[ 1209.498388][   T10]      dst_alloc+0x97/0x150
[ 1209.498388][   T10]      ip6_dst_alloc+0x23/0x90
[ 1209.498388][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1209.498388][   T10]      ip6_pol_route+0x56f/0x840
[ 1209.498388][   T10]      fib6_rule_lookup+0x456/0x630
[ 1209.498388][   T10]      ip6_route_input+0x59c/0xa50
[ 1209.498388][   T10]      ipv6_rcv+0x397/0x810
[ 1209.498388][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1209.498388][   T10]      process_backlog+0x101/0x620
[ 1209.498388][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1209.498388][   T10]      net_rx_action+0x495/0xbe0
[ 1209.498388][   T10]      __do_softirq+0x1b5/0x7f6
[ 1209.498388][   T10] 
[ 1209.510402][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1209.510402][   T10]      netdev_get_by_index+0x5e/0x80
[ 1209.510402][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1209.510402][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1209.510402][   T10]      ip6_route_add+0x1c/0x140
[ 1209.510402][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1209.510402][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1209.510402][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1209.510402][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1209.510402][   T10]      netlink_rcv_skb+0x130/0x360
[ 1209.510402][   T10]      netlink_unicast+0x449/0x710
[ 1209.510402][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1209.510402][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1209.510402][   T10]      ___sys_sendmsg+0xee/0x170
[ 1209.510402][   T10]      __sys_sendmsg+0xcd/0x170
[ 1209.510402][   T10]      do_syscall_64+0xc6/0x1e0
[ 1209.510402][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1209.510402][   T10] 
[ 1209.515259][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1209.515259][   T10]      netdev_get_by_index+0x5e/0x80
[ 1209.515259][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1209.515259][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1209.515259][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1209.515259][   T10]      ipv6_add_addr+0x411/0x2000
[ 1209.515259][   T10]      inet6_addr_add+0x30e/0xa40
[ 1209.515259][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1209.515259][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1209.515259][   T10]      netlink_rcv_skb+0x130/0x360
[ 1209.515259][   T10]      netlink_unicast+0x449/0x710
[ 1209.515259][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1209.515259][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1209.515259][   T10]      ___sys_sendmsg+0xee/0x170
[ 1209.515259][   T10]      __sys_sendmsg+0xcd/0x170
[ 1209.515259][   T10]      do_syscall_64+0xc6/0x1e0
[ 1209.515259][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1209.515259][   T10] 
[ 1209.520044][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1209.520044][   T10]      netdev_get_by_index+0x5e/0x80
[ 1209.520044][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1209.520044][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1209.520044][   T10]      ip6_route_add+0x1c/0x140
[ 1209.520044][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1209.520044][   T10]      addrconf_add_dev+0xe2/0x170
[ 1209.520044][   T10]      inet6_addr_add+0x12f/0xa40
[ 1209.520044][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1209.520044][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1209.520044][   T10]      netlink_rcv_skb+0x130/0x360
[ 1209.520044][   T10]      netlink_unicast+0x449/0x710
[ 1209.520044][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1209.520044][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1209.520044][   T10]      ___sys_sendmsg+0xee/0x170
[ 1209.520044][   T10]      __sys_sendmsg+0xcd/0x170
[ 1209.520044][   T10]      do_syscall_64+0xc6/0x1e0
[ 1209.520044][   T10] 
[ 1209.525881][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1209.525881][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1209.525881][   T10]      ipv6_find_idev+0x102/0x170
[ 1209.525881][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1209.525881][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1209.525881][   T10]      netlink_rcv_skb+0x130/0x360
[ 1209.525881][   T10]      netlink_unicast+0x449/0x710
[ 1209.525881][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1209.525881][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1209.525881][   T10]      ___sys_sendmsg+0xee/0x170
[ 1209.525881][   T10]      __sys_sendmsg+0xcd/0x170
[ 1209.525881][   T10]      do_syscall_64+0xc6/0x1e0
[ 1209.525881][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1209.525881][   T10] 
[ 1209.530802][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1209.530802][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1209.530802][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1209.530802][   T10]      ipv6_find_idev+0x102/0x170
[ 1209.530802][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1209.530802][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1209.530802][   T10]      netlink_rcv_skb+0x130/0x360
[ 1209.530802][   T10]      netlink_unicast+0x449/0x710
[ 1209.530802][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1209.530802][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1209.530802][   T10]      ___sys_sendmsg+0xee/0x170
[ 1209.530802][   T10]      __sys_sendmsg+0xcd/0x170
[ 1209.530802][   T10]      do_syscall_64+0xc6/0x1e0
[ 1209.530802][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1209.530802][   T10] 
[ 1209.544442][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1209.545528][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1209.545528][   T10]      dst_init+0x84/0x4a0
[ 1209.545528][   T10]      dst_alloc+0x97/0x150
[ 1209.545528][   T10]      ip6_dst_alloc+0x23/0x90
[ 1209.545528][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1209.545528][   T10]      ip6_pol_route+0x56f/0x840
[ 1209.545528][   T10]      fib6_rule_lookup+0x456/0x630
[ 1209.545528][   T10]      ip6_route_input+0x59c/0xa50
[ 1209.545528][   T10]      ipv6_rcv+0x397/0x810
[ 1209.545528][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1209.545528][   T10]      process_backlog+0x101/0x620
[ 1209.545528][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1209.545528][   T10]      net_rx_action+0x495/0xbe0
[ 1209.545528][   T10]      __do_softirq+0x1b5/0x7f6
[ 1209.545528][   T10] 
[ 1209.550843][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1209.550843][   T10]      netdev_get_by_index+0x5e/0x80
[ 1209.550843][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1209.550843][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1209.550843][   T10]      ip6_route_add+0x1c/0x140
[ 1209.550843][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1209.550843][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1209.550843][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1209.550843][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1209.550843][   T10]      netlink_rcv_skb+0x130/0x360
[ 1209.550843][   T10]      netlink_unicast+0x449/0x710
[ 1209.550843][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1209.550843][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1209.550843][   T10]      ___sys_sendmsg+0xee/0x170
[ 1209.550843][   T10]      __sys_sendmsg+0xcd/0x170
[ 1209.550843][   T10]      do_syscall_64+0xc6/0x1e0
[ 1209.550843][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1209.550843][   T10] 
[ 1209.557288][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1209.557288][   T10]      netdev_get_by_index+0x5e/0x80
[ 1209.557288][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1209.557288][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1209.557288][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1209.557288][   T10]      ipv6_add_addr+0x411/0x2000
[ 1209.557288][   T10]      inet6_addr_add+0x30e/0xa40
[ 1209.557288][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1209.557288][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1209.557288][   T10]      netlink_rcv_skb+0x130/0x360
[ 1209.557288][   T10]      netlink_unicast+0x449/0x710
[ 1209.557288][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1209.557288][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1209.557288][   T10]      ___sys_sendmsg+0xee/0x170
[ 1209.557288][   T10]      __sys_sendmsg+0xcd/0x170
[ 1209.557288][   T10]      do_syscall_64+0xc6/0x1e0
[ 1209.557288][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1209.557288][   T10] 
[ 1209.563535][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1209.563535][   T10]      netdev_get_by_index+0x5e/0x80
[ 1209.563535][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1209.563535][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1209.563535][   T10]      ip6_route_add+0x1c/0x140
[ 1209.563535][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1209.563535][   T10]      addrconf_add_dev+0xe2/0x170
[ 1209.563535][   T10]      inet6_addr_add+0x12f/0xa40
[ 1209.563535][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1209.563535][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1209.563535][   T10]      netlink_rcv_skb+0x130/0x360
[ 1209.563535][   T10]      netlink_unicast+0x449/0x710
[ 1209.563535][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1209.563535][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1209.563535][   T10]      ___sys_sendmsg+0xee/0x170
[ 1209.563535][   T10]      __sys_sendmsg+0xcd/0x170
[ 1209.563535][   T10]      do_syscall_64+0xc6/0x1e0
[ 1209.563535][   T10] 
[ 1209.569638][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1209.569638][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1209.569638][   T10]      ipv6_find_idev+0x102/0x170
[ 1209.569638][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1209.569638][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1209.569638][   T10]      netlink_rcv_skb+0x130/0x360
[ 1209.569638][   T10]      netlink_unicast+0x449/0x710
[ 1209.569638][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1209.569638][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1209.569638][   T10]      ___sys_sendmsg+0xee/0x170
[ 1209.569638][   T10]      __sys_sendmsg+0xcd/0x170
[ 1209.569638][   T10]      do_syscall_64+0xc6/0x1e0
[ 1209.569638][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1209.569638][   T10] 
[ 1209.575086][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1209.575086][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1209.575086][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1209.575086][   T10]      ipv6_find_idev+0x102/0x170
[ 1209.575086][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1209.575086][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1209.575086][   T10]      netlink_rcv_skb+0x130/0x360
[ 1209.575086][   T10]      netlink_unicast+0x449/0x710
[ 1209.575086][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1209.575086][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1209.575086][   T10]      ___sys_sendmsg+0xee/0x170
[ 1209.575086][   T10]      __sys_sendmsg+0xcd/0x170
[ 1209.575086][   T10]      do_syscall_64+0xc6/0x1e0
[ 1209.575086][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1209.575086][   T10] 
[ 1219.713820][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1219.756017][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1219.756017][   T10]      dst_init+0x84/0x4a0
[ 1219.756017][   T10]      dst_alloc+0x97/0x150
[ 1219.756017][   T10]      ip6_dst_alloc+0x23/0x90
[ 1219.756017][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1219.756017][   T10]      ip6_pol_route+0x56f/0x840
[ 1219.756017][   T10]      fib6_rule_lookup+0x456/0x630
[ 1219.756017][   T10]      ip6_route_input+0x59c/0xa50
[ 1219.756017][   T10]      ipv6_rcv+0x397/0x810
[ 1219.756017][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1219.756017][   T10]      process_backlog+0x101/0x620
[ 1219.756017][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1219.756017][   T10]      net_rx_action+0x495/0xbe0
[ 1219.756017][   T10]      __do_softirq+0x1b5/0x7f6
[ 1219.756017][   T10] 
[ 1219.759829][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1219.759829][   T10]      netdev_get_by_index+0x5e/0x80
[ 1219.759829][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1219.759829][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1219.759829][   T10]      ip6_route_add+0x1c/0x140
[ 1219.759829][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1219.759829][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1219.759829][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1219.759829][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1219.759829][   T10]      netlink_rcv_skb+0x130/0x360
[ 1219.759829][   T10]      netlink_unicast+0x449/0x710
[ 1219.759829][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1219.759829][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1219.759829][   T10]      ___sys_sendmsg+0xee/0x170
[ 1219.759829][   T10]      __sys_sendmsg+0xcd/0x170
[ 1219.759829][   T10]      do_syscall_64+0xc6/0x1e0
[ 1219.759829][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1219.759829][   T10] 
[ 1219.764283][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1219.764283][   T10]      netdev_get_by_index+0x5e/0x80
[ 1219.764283][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1219.764283][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1219.764283][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1219.764283][   T10]      ipv6_add_addr+0x411/0x2000
[ 1219.764283][   T10]      inet6_addr_add+0x30e/0xa40
[ 1219.764283][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1219.764283][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1219.764283][   T10]      netlink_rcv_skb+0x130/0x360
[ 1219.764283][   T10]      netlink_unicast+0x449/0x710
[ 1219.764283][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1219.764283][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1219.764283][   T10]      ___sys_sendmsg+0xee/0x170
[ 1219.764283][   T10]      __sys_sendmsg+0xcd/0x170
[ 1219.764283][   T10]      do_syscall_64+0xc6/0x1e0
[ 1219.764283][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1219.764283][   T10] 
[ 1219.769016][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1219.769016][   T10]      netdev_get_by_index+0x5e/0x80
[ 1219.769016][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1219.769016][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1219.769016][   T10]      ip6_route_add+0x1c/0x140
[ 1219.769016][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1219.769016][   T10]      addrconf_add_dev+0xe2/0x170
[ 1219.769016][   T10]      inet6_addr_add+0x12f/0xa40
[ 1219.769016][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1219.769016][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1219.769016][   T10]      netlink_rcv_skb+0x130/0x360
[ 1219.769016][   T10]      netlink_unicast+0x449/0x710
[ 1219.769016][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1219.769016][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1219.769016][   T10]      ___sys_sendmsg+0xee/0x170
[ 1219.769016][   T10]      __sys_sendmsg+0xcd/0x170
[ 1219.769016][   T10]      do_syscall_64+0xc6/0x1e0
[ 1219.769016][   T10] 
[ 1219.773388][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1219.773388][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1219.773388][   T10]      ipv6_find_idev+0x102/0x170
[ 1219.773388][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1219.773388][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1219.773388][   T10]      netlink_rcv_skb+0x130/0x360
[ 1219.773388][   T10]      netlink_unicast+0x449/0x710
[ 1219.773388][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1219.773388][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1219.773388][   T10]      ___sys_sendmsg+0xee/0x170
[ 1219.773388][   T10]      __sys_sendmsg+0xcd/0x170
[ 1219.773388][   T10]      do_syscall_64+0xc6/0x1e0
[ 1219.773388][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1219.773388][   T10] 
[ 1219.776954][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1219.776954][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1219.776954][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1219.776954][   T10]      ipv6_find_idev+0x102/0x170
[ 1219.776954][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1219.776954][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1219.776954][   T10]      netlink_rcv_skb+0x130/0x360
[ 1219.776954][   T10]      netlink_unicast+0x449/0x710
[ 1219.776954][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1219.776954][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1219.776954][   T10]      ___sys_sendmsg+0xee/0x170
[ 1219.776954][   T10]      __sys_sendmsg+0xcd/0x170
[ 1219.776954][   T10]      do_syscall_64+0xc6/0x1e0
[ 1219.776954][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1219.776954][   T10] 
[ 1219.796568][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1219.797339][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1219.797339][   T10]      dst_init+0x84/0x4a0
[ 1219.797339][   T10]      dst_alloc+0x97/0x150
[ 1219.797339][   T10]      ip6_dst_alloc+0x23/0x90
[ 1219.797339][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1219.797339][   T10]      ip6_pol_route+0x56f/0x840
[ 1219.797339][   T10]      fib6_rule_lookup+0x456/0x630
[ 1219.797339][   T10]      ip6_route_input+0x59c/0xa50
[ 1219.797339][   T10]      ipv6_rcv+0x397/0x810
[ 1219.797339][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1219.797339][   T10]      process_backlog+0x101/0x620
[ 1219.797339][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1219.797339][   T10]      net_rx_action+0x495/0xbe0
[ 1219.797339][   T10]      __do_softirq+0x1b5/0x7f6
[ 1219.797339][   T10] 
[ 1219.801062][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1219.801062][   T10]      netdev_get_by_index+0x5e/0x80
[ 1219.801062][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1219.801062][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1219.801062][   T10]      ip6_route_add+0x1c/0x140
[ 1219.801062][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1219.801062][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1219.801062][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1219.801062][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1219.801062][   T10]      netlink_rcv_skb+0x130/0x360
[ 1219.801062][   T10]      netlink_unicast+0x449/0x710
[ 1219.801062][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1219.801062][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1219.801062][   T10]      ___sys_sendmsg+0xee/0x170
[ 1219.801062][   T10]      __sys_sendmsg+0xcd/0x170
[ 1219.801062][   T10]      do_syscall_64+0xc6/0x1e0
[ 1219.801062][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1219.801062][   T10] 
[ 1219.806605][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1219.806605][   T10]      netdev_get_by_index+0x5e/0x80
[ 1219.806605][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1219.806605][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1219.806605][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1219.806605][   T10]      ipv6_add_addr+0x411/0x2000
[ 1219.806605][   T10]      inet6_addr_add+0x30e/0xa40
[ 1219.806605][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1219.806605][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1219.806605][   T10]      netlink_rcv_skb+0x130/0x360
[ 1219.806605][   T10]      netlink_unicast+0x449/0x710
[ 1219.806605][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1219.806605][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1219.806605][   T10]      ___sys_sendmsg+0xee/0x170
[ 1219.806605][   T10]      __sys_sendmsg+0xcd/0x170
[ 1219.806605][   T10]      do_syscall_64+0xc6/0x1e0
[ 1219.806605][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1219.806605][   T10] 
[ 1219.811115][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1219.811115][   T10]      netdev_get_by_index+0x5e/0x80
[ 1219.811115][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1219.811115][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1219.811115][   T10]      ip6_route_add+0x1c/0x140
[ 1219.811115][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1219.811115][   T10]      addrconf_add_dev+0xe2/0x170
[ 1219.811115][   T10]      inet6_addr_add+0x12f/0xa40
[ 1219.811115][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1219.811115][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1219.811115][   T10]      netlink_rcv_skb+0x130/0x360
[ 1219.811115][   T10]      netlink_unicast+0x449/0x710
[ 1219.811115][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1219.811115][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1219.811115][   T10]      ___sys_sendmsg+0xee/0x170
[ 1219.811115][   T10]      __sys_sendmsg+0xcd/0x170
[ 1219.811115][   T10]      do_syscall_64+0xc6/0x1e0
[ 1219.811115][   T10] 
[ 1219.816032][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1219.816032][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1219.816032][   T10]      ipv6_find_idev+0x102/0x170
[ 1219.816032][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1219.816032][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1219.816032][   T10]      netlink_rcv_skb+0x130/0x360
[ 1219.816032][   T10]      netlink_unicast+0x449/0x710
[ 1219.816032][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1219.816032][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1219.816032][   T10]      ___sys_sendmsg+0xee/0x170
[ 1219.816032][   T10]      __sys_sendmsg+0xcd/0x170
[ 1219.816032][   T10]      do_syscall_64+0xc6/0x1e0
[ 1219.816032][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1219.816032][   T10] 
[ 1219.819610][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1219.819610][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1219.819610][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1219.819610][   T10]      ipv6_find_idev+0x102/0x170
[ 1219.819610][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1219.819610][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1219.819610][   T10]      netlink_rcv_skb+0x130/0x360
[ 1219.819610][   T10]      netlink_unicast+0x449/0x710
[ 1219.819610][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1219.819610][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1219.819610][   T10]      ___sys_sendmsg+0xee/0x170
[ 1219.819610][   T10]      __sys_sendmsg+0xcd/0x170
[ 1219.819610][   T10]      do_syscall_64+0xc6/0x1e0
[ 1219.819610][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1219.819610][   T10] 
[ 1230.065803][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1230.066193][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1230.066193][   T10]      dst_init+0x84/0x4a0
[ 1230.066193][   T10]      dst_alloc+0x97/0x150
[ 1230.066193][   T10]      ip6_dst_alloc+0x23/0x90
[ 1230.066193][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1230.066193][   T10]      ip6_pol_route+0x56f/0x840
[ 1230.066193][   T10]      fib6_rule_lookup+0x456/0x630
[ 1230.066193][   T10]      ip6_route_input+0x59c/0xa50
[ 1230.066193][   T10]      ipv6_rcv+0x397/0x810
[ 1230.066193][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1230.066193][   T10]      process_backlog+0x101/0x620
[ 1230.066193][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1230.066193][   T10]      net_rx_action+0x495/0xbe0
[ 1230.066193][   T10]      __do_softirq+0x1b5/0x7f6
[ 1230.066193][   T10] 
[ 1230.067888][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1230.067888][   T10]      netdev_get_by_index+0x5e/0x80
[ 1230.067888][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1230.067888][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1230.067888][   T10]      ip6_route_add+0x1c/0x140
[ 1230.067888][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1230.067888][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1230.067888][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1230.067888][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1230.067888][   T10]      netlink_rcv_skb+0x130/0x360
[ 1230.067888][   T10]      netlink_unicast+0x449/0x710
[ 1230.067888][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1230.067888][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1230.067888][   T10]      ___sys_sendmsg+0xee/0x170
[ 1230.067888][   T10]      __sys_sendmsg+0xcd/0x170
[ 1230.067888][   T10]      do_syscall_64+0xc6/0x1e0
[ 1230.067888][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1230.067888][   T10] 
[ 1230.069917][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1230.069917][   T10]      netdev_get_by_index+0x5e/0x80
[ 1230.069917][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1230.069917][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1230.069917][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1230.069917][   T10]      ipv6_add_addr+0x411/0x2000
[ 1230.069917][   T10]      inet6_addr_add+0x30e/0xa40
[ 1230.069917][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1230.069917][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1230.069917][   T10]      netlink_rcv_skb+0x130/0x360
[ 1230.069917][   T10]      netlink_unicast+0x449/0x710
[ 1230.069917][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1230.069917][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1230.069917][   T10]      ___sys_sendmsg+0xee/0x170
[ 1230.069917][   T10]      __sys_sendmsg+0xcd/0x170
[ 1230.069917][   T10]      do_syscall_64+0xc6/0x1e0
[ 1230.069917][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1230.069917][   T10] 
[ 1230.071938][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1230.071938][   T10]      netdev_get_by_index+0x5e/0x80
[ 1230.071938][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1230.071938][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1230.071938][   T10]      ip6_route_add+0x1c/0x140
[ 1230.071938][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1230.071938][   T10]      addrconf_add_dev+0xe2/0x170
[ 1230.071938][   T10]      inet6_addr_add+0x12f/0xa40
[ 1230.071938][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1230.071938][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1230.071938][   T10]      netlink_rcv_skb+0x130/0x360
[ 1230.071938][   T10]      netlink_unicast+0x449/0x710
[ 1230.071938][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1230.071938][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1230.071938][   T10]      ___sys_sendmsg+0xee/0x170
[ 1230.071938][   T10]      __sys_sendmsg+0xcd/0x170
[ 1230.071938][   T10]      do_syscall_64+0xc6/0x1e0
[ 1230.071938][   T10] 
[ 1230.073926][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1230.073926][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1230.073926][   T10]      ipv6_find_idev+0x102/0x170
[ 1230.073926][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1230.073926][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1230.073926][   T10]      netlink_rcv_skb+0x130/0x360
[ 1230.073926][   T10]      netlink_unicast+0x449/0x710
[ 1230.073926][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1230.073926][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1230.073926][   T10]      ___sys_sendmsg+0xee/0x170
[ 1230.073926][   T10]      __sys_sendmsg+0xcd/0x170
[ 1230.073926][   T10]      do_syscall_64+0xc6/0x1e0
[ 1230.073926][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1230.073926][   T10] 
[ 1230.075486][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1230.075486][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1230.075486][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1230.075486][   T10]      ipv6_find_idev+0x102/0x170
[ 1230.075486][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1230.075486][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1230.075486][   T10]      netlink_rcv_skb+0x130/0x360
[ 1230.075486][   T10]      netlink_unicast+0x449/0x710
[ 1230.075486][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1230.075486][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1230.075486][   T10]      ___sys_sendmsg+0xee/0x170
[ 1230.075486][   T10]      __sys_sendmsg+0xcd/0x170
[ 1230.075486][   T10]      do_syscall_64+0xc6/0x1e0
[ 1230.075486][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1230.075486][   T10] 
[ 1230.077219][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1230.077508][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1230.077508][   T10]      dst_init+0x84/0x4a0
[ 1230.077508][   T10]      dst_alloc+0x97/0x150
[ 1230.077508][   T10]      ip6_dst_alloc+0x23/0x90
[ 1230.077508][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1230.077508][   T10]      ip6_pol_route+0x56f/0x840
[ 1230.077508][   T10]      fib6_rule_lookup+0x456/0x630
[ 1230.077508][   T10]      ip6_route_input+0x59c/0xa50
[ 1230.077508][   T10]      ipv6_rcv+0x397/0x810
[ 1230.077508][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1230.077508][   T10]      process_backlog+0x101/0x620
[ 1230.077508][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1230.077508][   T10]      net_rx_action+0x495/0xbe0
[ 1230.077508][   T10]      __do_softirq+0x1b5/0x7f6
[ 1230.077508][   T10] 
[ 1230.079171][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1230.079171][   T10]      netdev_get_by_index+0x5e/0x80
[ 1230.079171][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1230.079171][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1230.079171][   T10]      ip6_route_add+0x1c/0x140
[ 1230.079171][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1230.079171][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1230.079171][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1230.079171][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1230.079171][   T10]      netlink_rcv_skb+0x130/0x360
[ 1230.079171][   T10]      netlink_unicast+0x449/0x710
[ 1230.079171][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1230.079171][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1230.079171][   T10]      ___sys_sendmsg+0xee/0x170
[ 1230.079171][   T10]      __sys_sendmsg+0xcd/0x170
[ 1230.079171][   T10]      do_syscall_64+0xc6/0x1e0
[ 1230.079171][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1230.079171][   T10] 
[ 1230.081197][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1230.081197][   T10]      netdev_get_by_index+0x5e/0x80
[ 1230.081197][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1230.081197][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1230.081197][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1230.081197][   T10]      ipv6_add_addr+0x411/0x2000
[ 1230.081197][   T10]      inet6_addr_add+0x30e/0xa40
[ 1230.081197][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1230.081197][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1230.081197][   T10]      netlink_rcv_skb+0x130/0x360
[ 1230.081197][   T10]      netlink_unicast+0x449/0x710
[ 1230.081197][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1230.081197][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1230.081197][   T10]      ___sys_sendmsg+0xee/0x170
[ 1230.081197][   T10]      __sys_sendmsg+0xcd/0x170
[ 1230.081197][   T10]      do_syscall_64+0xc6/0x1e0
[ 1230.081197][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1230.081197][   T10] 
[ 1230.083231][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1230.083231][   T10]      netdev_get_by_index+0x5e/0x80
[ 1230.083231][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1230.083231][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1230.083231][   T10]      ip6_route_add+0x1c/0x140
[ 1230.083231][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1230.083231][   T10]      addrconf_add_dev+0xe2/0x170
[ 1230.083231][   T10]      inet6_addr_add+0x12f/0xa40
[ 1230.083231][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1230.083231][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1230.083231][   T10]      netlink_rcv_skb+0x130/0x360
[ 1230.083231][   T10]      netlink_unicast+0x449/0x710
[ 1230.083231][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1230.083231][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1230.083231][   T10]      ___sys_sendmsg+0xee/0x170
[ 1230.083231][   T10]      __sys_sendmsg+0xcd/0x170
[ 1230.083231][   T10]      do_syscall_64+0xc6/0x1e0
[ 1230.083231][   T10] 
[ 1230.085583][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1230.085583][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1230.085583][   T10]      ipv6_find_idev+0x102/0x170
[ 1230.085583][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1230.085583][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1230.085583][   T10]      netlink_rcv_skb+0x130/0x360
[ 1230.085583][   T10]      netlink_unicast+0x449/0x710
[ 1230.085583][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1230.085583][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1230.085583][   T10]      ___sys_sendmsg+0xee/0x170
[ 1230.085583][   T10]      __sys_sendmsg+0xcd/0x170
[ 1230.085583][   T10]      do_syscall_64+0xc6/0x1e0
[ 1230.085583][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1230.085583][   T10] 
[ 1230.087149][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1230.087149][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1230.087149][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1230.087149][   T10]      ipv6_find_idev+0x102/0x170
[ 1230.087149][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1230.087149][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1230.087149][   T10]      netlink_rcv_skb+0x130/0x360
[ 1230.087149][   T10]      netlink_unicast+0x449/0x710
[ 1230.087149][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1230.087149][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1230.087149][   T10]      ___sys_sendmsg+0xee/0x170
[ 1230.087149][   T10]      __sys_sendmsg+0xcd/0x170
[ 1230.087149][   T10]      do_syscall_64+0xc6/0x1e0
[ 1230.087149][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1230.087149][   T10] 
[ 1230.121827][   T42] INFO: task modprobe:376 blocked for more than 1105 seconds.
[ 1230.122069][   T42]       Not tainted 6.8.0-virtme #1
[ 1230.122195][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1230.122399][   T42] task:modprobe        state:D stack:25648 pid:376   tgid:376   ppid:39     flags:0x00004002
[ 1230.122650][   T42] Call Trace:
[ 1230.122780][   T42]  <TASK>
[ 1230.122856][   T42]  __schedule+0x705/0x1ac0
[ 1230.122996][   T42]  ? __pfx___schedule+0x10/0x10
[ 1230.123123][   T42]  ? schedule+0x1a5/0x210
[ 1230.123223][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1230.123358][   T42]  ? mark_lock+0x38/0x3e0
[ 1230.123455][   T42]  ? do_raw_spin_lock+0x131/0x270
[ 1230.123585][   T42]  ? schedule+0x1a5/0x210
[ 1230.123703][   T42]  schedule+0xdf/0x210
[ 1230.123805][   T42]  schedule_preempt_disabled+0x15/0x30
[ 1230.123933][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[ 1230.124066][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 1230.124224][   T42]  ? kasan_save_stack+0x34/0x50
[ 1230.124353][   T42]  ? kasan_save_stack+0x24/0x50
[ 1230.124480][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1230.124616][   T42]  ? lock_acquire+0x1c1/0x220
[ 1230.124753][   T42]  ? register_pernet_subsys+0x1a/0x50
[ 1230.124894][   T42]  down_write+0x1c9/0x200
[ 1230.124993][   T42]  ? __pfx_down_write+0x10/0x10
[ 1230.125119][   T42]  ? __pfx___lock_release+0x10/0x10
[ 1230.125252][   T42]  ? __pfx_nf_defrag_init+0x10/0x10 [nf_defrag_ipv4]
[ 1230.125418][   T42]  register_pernet_subsys+0x1a/0x50
[ 1230.125547][   T42]  nf_defrag_init+0x19/0xff0 [nf_defrag_ipv4]
[ 1230.125716][   T42]  do_one_initcall+0xc8/0x3f0
[ 1230.125845][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[ 1230.125979][   T42]  ? __create_object+0x5e/0xb0
[ 1230.126110][   T42]  ? kasan_unpoison+0x27/0x60
[ 1230.126243][   T42]  do_init_module+0x233/0x740
[ 1230.126391][   T42]  load_module+0x16b5/0x2350
[ 1230.126539][   T42]  ? __pfx_load_module+0x10/0x10
[ 1230.126690][   T42]  ? kernel_read_file+0x3d2/0x520
[ 1230.126829][   T42]  ? kernel_read_file+0x300/0x520
[ 1230.126958][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[ 1230.127095][   T42]  ? init_module_from_file+0xd2/0x130
[ 1230.127227][   T42]  init_module_from_file+0xd2/0x130
[ 1230.127356][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[ 1230.127513][   T42]  ? __lock_release+0x103/0x460
[ 1230.127641][   T42]  ? idempotent_init_module+0x32a/0x620
[ 1230.127788][   T42]  ? idempotent_init_module+0x32a/0x620
[ 1230.127916][   T42]  ? do_raw_spin_unlock+0x58/0x220
[ 1230.128050][   T42]  idempotent_init_module+0x342/0x620
[ 1230.128182][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[ 1230.128361][   T42]  __x64_sys_finit_module+0xbe/0x130
[ 1230.128490][   T42]  do_syscall_64+0xc6/0x1e0
[ 1230.128620][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1230.128791][   T42] RIP: 0033:0x7f5fd44b2e5d
[ 1230.128925][   T42] RSP: 002b:00007ffcc85e8928 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 1230.129115][   T42] RAX: ffffffffffffffda RBX: 000055d19cb2e8d0 RCX: 00007f5fd44b2e5d
[ 1230.129304][   T42] RDX: 0000000000000000 RSI: 000055d18f6a6a2a RDI: 0000000000000000
[ 1230.129492][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 000055d19cb2dc10
[ 1230.129691][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055d18f6a6a2a
[ 1230.129879][   T42] R13: 000055d19cb2e880 R14: 000055d19cb2f710 R15: 0000000000000000
[ 1230.130081][   T42]  </TASK>
[ 1230.130179][   T42] 
[ 1230.130179][   T42] Showing all locks held in the system:
[ 1230.130362][   T42] 3 locks held by kworker/u16:0/10:
[ 1230.130489][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[ 1230.130766][   T42]  #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[ 1230.130990][   T42]  #2: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[ 1230.131215][   T42] 2 locks held by kworker/u20:0/39:
[ 1230.131340][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[ 1230.131591][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[ 1230.131880][   T42] 1 lock held by khungtaskd/42:
[ 1230.132002][   T42]  #0: ffffffff9b5591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[ 1230.132236][   T42] 1 lock held by modprobe/376:
[ 1230.132361][   T42]  #0: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[ 1230.132613][   T42] 
[ 1230.132684][   T42] =============================================
[ 1230.132684][   T42] 
[ 1240.257854][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1240.258554][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1240.258554][   T10]      dst_init+0x84/0x4a0
[ 1240.258554][   T10]      dst_alloc+0x97/0x150
[ 1240.258554][   T10]      ip6_dst_alloc+0x23/0x90
[ 1240.258554][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1240.258554][   T10]      ip6_pol_route+0x56f/0x840
[ 1240.258554][   T10]      fib6_rule_lookup+0x456/0x630
[ 1240.258554][   T10]      ip6_route_input+0x59c/0xa50
[ 1240.258554][   T10]      ipv6_rcv+0x397/0x810
[ 1240.258554][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1240.258554][   T10]      process_backlog+0x101/0x620
[ 1240.258554][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1240.258554][   T10]      net_rx_action+0x495/0xbe0
[ 1240.258554][   T10]      __do_softirq+0x1b5/0x7f6
[ 1240.258554][   T10] 
[ 1240.260297][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1240.260297][   T10]      netdev_get_by_index+0x5e/0x80
[ 1240.260297][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1240.260297][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1240.260297][   T10]      ip6_route_add+0x1c/0x140
[ 1240.260297][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1240.260297][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1240.260297][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1240.260297][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1240.260297][   T10]      netlink_rcv_skb+0x130/0x360
[ 1240.260297][   T10]      netlink_unicast+0x449/0x710
[ 1240.260297][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1240.260297][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1240.260297][   T10]      ___sys_sendmsg+0xee/0x170
[ 1240.260297][   T10]      __sys_sendmsg+0xcd/0x170
[ 1240.260297][   T10]      do_syscall_64+0xc6/0x1e0
[ 1240.260297][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1240.260297][   T10] 
[ 1240.262389][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1240.262389][   T10]      netdev_get_by_index+0x5e/0x80
[ 1240.262389][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1240.262389][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1240.262389][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1240.262389][   T10]      ipv6_add_addr+0x411/0x2000
[ 1240.262389][   T10]      inet6_addr_add+0x30e/0xa40
[ 1240.262389][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1240.262389][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1240.262389][   T10]      netlink_rcv_skb+0x130/0x360
[ 1240.262389][   T10]      netlink_unicast+0x449/0x710
[ 1240.262389][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1240.262389][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1240.262389][   T10]      ___sys_sendmsg+0xee/0x170
[ 1240.262389][   T10]      __sys_sendmsg+0xcd/0x170
[ 1240.262389][   T10]      do_syscall_64+0xc6/0x1e0
[ 1240.262389][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1240.262389][   T10] 
[ 1240.264424][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1240.264424][   T10]      netdev_get_by_index+0x5e/0x80
[ 1240.264424][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1240.264424][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1240.264424][   T10]      ip6_route_add+0x1c/0x140
[ 1240.264424][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1240.264424][   T10]      addrconf_add_dev+0xe2/0x170
[ 1240.264424][   T10]      inet6_addr_add+0x12f/0xa40
[ 1240.264424][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1240.264424][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1240.264424][   T10]      netlink_rcv_skb+0x130/0x360
[ 1240.264424][   T10]      netlink_unicast+0x449/0x710
[ 1240.264424][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1240.264424][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1240.264424][   T10]      ___sys_sendmsg+0xee/0x170
[ 1240.264424][   T10]      __sys_sendmsg+0xcd/0x170
[ 1240.264424][   T10]      do_syscall_64+0xc6/0x1e0
[ 1240.264424][   T10] 
[ 1240.266432][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1240.266432][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1240.266432][   T10]      ipv6_find_idev+0x102/0x170
[ 1240.266432][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1240.266432][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1240.266432][   T10]      netlink_rcv_skb+0x130/0x360
[ 1240.266432][   T10]      netlink_unicast+0x449/0x710
[ 1240.266432][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1240.266432][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1240.266432][   T10]      ___sys_sendmsg+0xee/0x170
[ 1240.266432][   T10]      __sys_sendmsg+0xcd/0x170
[ 1240.266432][   T10]      do_syscall_64+0xc6/0x1e0
[ 1240.266432][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1240.266432][   T10] 
[ 1240.267995][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1240.267995][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1240.267995][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1240.267995][   T10]      ipv6_find_idev+0x102/0x170
[ 1240.267995][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1240.267995][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1240.267995][   T10]      netlink_rcv_skb+0x130/0x360
[ 1240.267995][   T10]      netlink_unicast+0x449/0x710
[ 1240.267995][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1240.267995][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1240.267995][   T10]      ___sys_sendmsg+0xee/0x170
[ 1240.267995][   T10]      __sys_sendmsg+0xcd/0x170
[ 1240.267995][   T10]      do_syscall_64+0xc6/0x1e0
[ 1240.267995][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1240.267995][   T10] 
[ 1240.269733][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1240.269980][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1240.269980][   T10]      dst_init+0x84/0x4a0
[ 1240.269980][   T10]      dst_alloc+0x97/0x150
[ 1240.269980][   T10]      ip6_dst_alloc+0x23/0x90
[ 1240.269980][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1240.269980][   T10]      ip6_pol_route+0x56f/0x840
[ 1240.269980][   T10]      fib6_rule_lookup+0x456/0x630
[ 1240.269980][   T10]      ip6_route_input+0x59c/0xa50
[ 1240.269980][   T10]      ipv6_rcv+0x397/0x810
[ 1240.269980][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1240.269980][   T10]      process_backlog+0x101/0x620
[ 1240.269980][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1240.269980][   T10]      net_rx_action+0x495/0xbe0
[ 1240.269980][   T10]      __do_softirq+0x1b5/0x7f6
[ 1240.269980][   T10] 
[ 1240.271644][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1240.271644][   T10]      netdev_get_by_index+0x5e/0x80
[ 1240.271644][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1240.271644][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1240.271644][   T10]      ip6_route_add+0x1c/0x140
[ 1240.271644][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1240.271644][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1240.271644][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1240.271644][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1240.271644][   T10]      netlink_rcv_skb+0x130/0x360
[ 1240.271644][   T10]      netlink_unicast+0x449/0x710
[ 1240.271644][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1240.271644][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1240.271644][   T10]      ___sys_sendmsg+0xee/0x170
[ 1240.271644][   T10]      __sys_sendmsg+0xcd/0x170
[ 1240.271644][   T10]      do_syscall_64+0xc6/0x1e0
[ 1240.271644][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1240.271644][   T10] 
[ 1240.273673][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1240.273673][   T10]      netdev_get_by_index+0x5e/0x80
[ 1240.273673][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1240.273673][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1240.273673][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1240.273673][   T10]      ipv6_add_addr+0x411/0x2000
[ 1240.273673][   T10]      inet6_addr_add+0x30e/0xa40
[ 1240.273673][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1240.273673][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1240.273673][   T10]      netlink_rcv_skb+0x130/0x360
[ 1240.273673][   T10]      netlink_unicast+0x449/0x710
[ 1240.273673][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1240.273673][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1240.273673][   T10]      ___sys_sendmsg+0xee/0x170
[ 1240.273673][   T10]      __sys_sendmsg+0xcd/0x170
[ 1240.273673][   T10]      do_syscall_64+0xc6/0x1e0
[ 1240.273673][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1240.273673][   T10] 
[ 1240.275713][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1240.275713][   T10]      netdev_get_by_index+0x5e/0x80
[ 1240.275713][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1240.275713][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1240.275713][   T10]      ip6_route_add+0x1c/0x140
[ 1240.275713][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1240.275713][   T10]      addrconf_add_dev+0xe2/0x170
[ 1240.275713][   T10]      inet6_addr_add+0x12f/0xa40
[ 1240.275713][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1240.275713][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1240.275713][   T10]      netlink_rcv_skb+0x130/0x360
[ 1240.275713][   T10]      netlink_unicast+0x449/0x710
[ 1240.275713][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1240.275713][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1240.275713][   T10]      ___sys_sendmsg+0xee/0x170
[ 1240.275713][   T10]      __sys_sendmsg+0xcd/0x170
[ 1240.275713][   T10]      do_syscall_64+0xc6/0x1e0
[ 1240.275713][   T10] 
[ 1240.277710][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1240.277710][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1240.277710][   T10]      ipv6_find_idev+0x102/0x170
[ 1240.277710][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1240.277710][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1240.277710][   T10]      netlink_rcv_skb+0x130/0x360
[ 1240.277710][   T10]      netlink_unicast+0x449/0x710
[ 1240.277710][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1240.277710][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1240.277710][   T10]      ___sys_sendmsg+0xee/0x170
[ 1240.277710][   T10]      __sys_sendmsg+0xcd/0x170
[ 1240.277710][   T10]      do_syscall_64+0xc6/0x1e0
[ 1240.277710][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1240.277710][   T10] 
[ 1240.279268][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1240.279268][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1240.279268][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1240.279268][   T10]      ipv6_find_idev+0x102/0x170
[ 1240.279268][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1240.279268][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1240.279268][   T10]      netlink_rcv_skb+0x130/0x360
[ 1240.279268][   T10]      netlink_unicast+0x449/0x710
[ 1240.279268][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1240.279268][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1240.279268][   T10]      ___sys_sendmsg+0xee/0x170
[ 1240.279268][   T10]      __sys_sendmsg+0xcd/0x170
[ 1240.279268][   T10]      do_syscall_64+0xc6/0x1e0
[ 1240.279268][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1240.279268][   T10] 
[ 1250.497912][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1250.498283][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1250.498283][   T10]      dst_init+0x84/0x4a0
[ 1250.498283][   T10]      dst_alloc+0x97/0x150
[ 1250.498283][   T10]      ip6_dst_alloc+0x23/0x90
[ 1250.498283][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1250.498283][   T10]      ip6_pol_route+0x56f/0x840
[ 1250.498283][   T10]      fib6_rule_lookup+0x456/0x630
[ 1250.498283][   T10]      ip6_route_input+0x59c/0xa50
[ 1250.498283][   T10]      ipv6_rcv+0x397/0x810
[ 1250.498283][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1250.498283][   T10]      process_backlog+0x101/0x620
[ 1250.498283][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1250.498283][   T10]      net_rx_action+0x495/0xbe0
[ 1250.498283][   T10]      __do_softirq+0x1b5/0x7f6
[ 1250.498283][   T10] 
[ 1250.499946][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1250.499946][   T10]      netdev_get_by_index+0x5e/0x80
[ 1250.499946][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1250.499946][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1250.499946][   T10]      ip6_route_add+0x1c/0x140
[ 1250.499946][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1250.499946][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1250.499946][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1250.499946][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1250.499946][   T10]      netlink_rcv_skb+0x130/0x360
[ 1250.499946][   T10]      netlink_unicast+0x449/0x710
[ 1250.499946][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1250.499946][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1250.499946][   T10]      ___sys_sendmsg+0xee/0x170
[ 1250.499946][   T10]      __sys_sendmsg+0xcd/0x170
[ 1250.499946][   T10]      do_syscall_64+0xc6/0x1e0
[ 1250.499946][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1250.499946][   T10] 
[ 1250.501938][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1250.501938][   T10]      netdev_get_by_index+0x5e/0x80
[ 1250.501938][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1250.501938][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1250.501938][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1250.501938][   T10]      ipv6_add_addr+0x411/0x2000
[ 1250.501938][   T10]      inet6_addr_add+0x30e/0xa40
[ 1250.501938][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1250.501938][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1250.501938][   T10]      netlink_rcv_skb+0x130/0x360
[ 1250.501938][   T10]      netlink_unicast+0x449/0x710
[ 1250.501938][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1250.501938][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1250.501938][   T10]      ___sys_sendmsg+0xee/0x170
[ 1250.501938][   T10]      __sys_sendmsg+0xcd/0x170
[ 1250.501938][   T10]      do_syscall_64+0xc6/0x1e0
[ 1250.501938][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1250.501938][   T10] 
[ 1250.503936][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1250.503936][   T10]      netdev_get_by_index+0x5e/0x80
[ 1250.503936][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1250.503936][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1250.503936][   T10]      ip6_route_add+0x1c/0x140
[ 1250.503936][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1250.503936][   T10]      addrconf_add_dev+0xe2/0x170
[ 1250.503936][   T10]      inet6_addr_add+0x12f/0xa40
[ 1250.503936][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1250.503936][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1250.503936][   T10]      netlink_rcv_skb+0x130/0x360
[ 1250.503936][   T10]      netlink_unicast+0x449/0x710
[ 1250.503936][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1250.503936][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1250.503936][   T10]      ___sys_sendmsg+0xee/0x170
[ 1250.503936][   T10]      __sys_sendmsg+0xcd/0x170
[ 1250.503936][   T10]      do_syscall_64+0xc6/0x1e0
[ 1250.503936][   T10] 
[ 1250.505905][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1250.505905][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1250.505905][   T10]      ipv6_find_idev+0x102/0x170
[ 1250.505905][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1250.505905][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1250.505905][   T10]      netlink_rcv_skb+0x130/0x360
[ 1250.505905][   T10]      netlink_unicast+0x449/0x710
[ 1250.505905][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1250.505905][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1250.505905][   T10]      ___sys_sendmsg+0xee/0x170
[ 1250.505905][   T10]      __sys_sendmsg+0xcd/0x170
[ 1250.505905][   T10]      do_syscall_64+0xc6/0x1e0
[ 1250.505905][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1250.505905][   T10] 
[ 1250.507545][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1250.507545][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1250.507545][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1250.507545][   T10]      ipv6_find_idev+0x102/0x170
[ 1250.507545][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1250.507545][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1250.507545][   T10]      netlink_rcv_skb+0x130/0x360
[ 1250.507545][   T10]      netlink_unicast+0x449/0x710
[ 1250.507545][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1250.507545][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1250.507545][   T10]      ___sys_sendmsg+0xee/0x170
[ 1250.507545][   T10]      __sys_sendmsg+0xcd/0x170
[ 1250.507545][   T10]      do_syscall_64+0xc6/0x1e0
[ 1250.507545][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1250.507545][   T10] 
[ 1250.509239][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1250.509478][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1250.509478][   T10]      dst_init+0x84/0x4a0
[ 1250.509478][   T10]      dst_alloc+0x97/0x150
[ 1250.509478][   T10]      ip6_dst_alloc+0x23/0x90
[ 1250.509478][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1250.509478][   T10]      ip6_pol_route+0x56f/0x840
[ 1250.509478][   T10]      fib6_rule_lookup+0x456/0x630
[ 1250.509478][   T10]      ip6_route_input+0x59c/0xa50
[ 1250.509478][   T10]      ipv6_rcv+0x397/0x810
[ 1250.509478][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1250.509478][   T10]      process_backlog+0x101/0x620
[ 1250.509478][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1250.509478][   T10]      net_rx_action+0x495/0xbe0
[ 1250.509478][   T10]      __do_softirq+0x1b5/0x7f6
[ 1250.509478][   T10] 
[ 1250.511113][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1250.511113][   T10]      netdev_get_by_index+0x5e/0x80
[ 1250.511113][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1250.511113][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1250.511113][   T10]      ip6_route_add+0x1c/0x140
[ 1250.511113][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1250.511113][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1250.511113][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1250.511113][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1250.511113][   T10]      netlink_rcv_skb+0x130/0x360
[ 1250.511113][   T10]      netlink_unicast+0x449/0x710
[ 1250.511113][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1250.511113][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1250.511113][   T10]      ___sys_sendmsg+0xee/0x170
[ 1250.511113][   T10]      __sys_sendmsg+0xcd/0x170
[ 1250.511113][   T10]      do_syscall_64+0xc6/0x1e0
[ 1250.511113][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1250.511113][   T10] 
[ 1250.513103][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1250.513103][   T10]      netdev_get_by_index+0x5e/0x80
[ 1250.513103][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1250.513103][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1250.513103][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1250.513103][   T10]      ipv6_add_addr+0x411/0x2000
[ 1250.513103][   T10]      inet6_addr_add+0x30e/0xa40
[ 1250.513103][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1250.513103][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1250.513103][   T10]      netlink_rcv_skb+0x130/0x360
[ 1250.513103][   T10]      netlink_unicast+0x449/0x710
[ 1250.513103][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1250.513103][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1250.513103][   T10]      ___sys_sendmsg+0xee/0x170
[ 1250.513103][   T10]      __sys_sendmsg+0xcd/0x170
[ 1250.513103][   T10]      do_syscall_64+0xc6/0x1e0
[ 1250.513103][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1250.513103][   T10] 
[ 1250.515093][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1250.515093][   T10]      netdev_get_by_index+0x5e/0x80
[ 1250.515093][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1250.515093][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1250.515093][   T10]      ip6_route_add+0x1c/0x140
[ 1250.515093][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1250.515093][   T10]      addrconf_add_dev+0xe2/0x170
[ 1250.515093][   T10]      inet6_addr_add+0x12f/0xa40
[ 1250.515093][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1250.515093][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1250.515093][   T10]      netlink_rcv_skb+0x130/0x360
[ 1250.515093][   T10]      netlink_unicast+0x449/0x710
[ 1250.515093][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1250.515093][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1250.515093][   T10]      ___sys_sendmsg+0xee/0x170
[ 1250.515093][   T10]      __sys_sendmsg+0xcd/0x170
[ 1250.515093][   T10]      do_syscall_64+0xc6/0x1e0
[ 1250.515093][   T10] 
[ 1250.517070][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1250.517070][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1250.517070][   T10]      ipv6_find_idev+0x102/0x170
[ 1250.517070][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1250.517070][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1250.517070][   T10]      netlink_rcv_skb+0x130/0x360
[ 1250.517070][   T10]      netlink_unicast+0x449/0x710
[ 1250.517070][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1250.517070][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1250.517070][   T10]      ___sys_sendmsg+0xee/0x170
[ 1250.517070][   T10]      __sys_sendmsg+0xcd/0x170
[ 1250.517070][   T10]      do_syscall_64+0xc6/0x1e0
[ 1250.517070][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1250.517070][   T10] 
[ 1250.518605][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1250.518605][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1250.518605][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1250.518605][   T10]      ipv6_find_idev+0x102/0x170
[ 1250.518605][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1250.518605][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1250.518605][   T10]      netlink_rcv_skb+0x130/0x360
[ 1250.518605][   T10]      netlink_unicast+0x449/0x710
[ 1250.518605][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1250.518605][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1250.518605][   T10]      ___sys_sendmsg+0xee/0x170
[ 1250.518605][   T10]      __sys_sendmsg+0xcd/0x170
[ 1250.518605][   T10]      do_syscall_64+0xc6/0x1e0
[ 1250.518605][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1250.518605][   T10] 
[ 1260.761802][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1260.762364][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1260.762364][   T10]      dst_init+0x84/0x4a0
[ 1260.762364][   T10]      dst_alloc+0x97/0x150
[ 1260.762364][   T10]      ip6_dst_alloc+0x23/0x90
[ 1260.762364][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1260.762364][   T10]      ip6_pol_route+0x56f/0x840
[ 1260.762364][   T10]      fib6_rule_lookup+0x456/0x630
[ 1260.762364][   T10]      ip6_route_input+0x59c/0xa50
[ 1260.762364][   T10]      ipv6_rcv+0x397/0x810
[ 1260.762364][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1260.762364][   T10]      process_backlog+0x101/0x620
[ 1260.762364][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1260.762364][   T10]      net_rx_action+0x495/0xbe0
[ 1260.762364][   T10]      __do_softirq+0x1b5/0x7f6
[ 1260.762364][   T10] 
[ 1260.764783][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1260.764783][   T10]      netdev_get_by_index+0x5e/0x80
[ 1260.764783][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1260.764783][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1260.764783][   T10]      ip6_route_add+0x1c/0x140
[ 1260.764783][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1260.764783][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1260.764783][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1260.764783][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1260.764783][   T10]      netlink_rcv_skb+0x130/0x360
[ 1260.764783][   T10]      netlink_unicast+0x449/0x710
[ 1260.764783][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1260.764783][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1260.764783][   T10]      ___sys_sendmsg+0xee/0x170
[ 1260.764783][   T10]      __sys_sendmsg+0xcd/0x170
[ 1260.764783][   T10]      do_syscall_64+0xc6/0x1e0
[ 1260.764783][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1260.764783][   T10] 
[ 1260.767092][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1260.767092][   T10]      netdev_get_by_index+0x5e/0x80
[ 1260.767092][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1260.767092][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1260.767092][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1260.767092][   T10]      ipv6_add_addr+0x411/0x2000
[ 1260.767092][   T10]      inet6_addr_add+0x30e/0xa40
[ 1260.767092][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1260.767092][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1260.767092][   T10]      netlink_rcv_skb+0x130/0x360
[ 1260.767092][   T10]      netlink_unicast+0x449/0x710
[ 1260.767092][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1260.767092][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1260.767092][   T10]      ___sys_sendmsg+0xee/0x170
[ 1260.767092][   T10]      __sys_sendmsg+0xcd/0x170
[ 1260.767092][   T10]      do_syscall_64+0xc6/0x1e0
[ 1260.767092][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1260.767092][   T10] 
[ 1260.769346][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1260.769346][   T10]      netdev_get_by_index+0x5e/0x80
[ 1260.769346][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1260.769346][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1260.769346][   T10]      ip6_route_add+0x1c/0x140
[ 1260.769346][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1260.769346][   T10]      addrconf_add_dev+0xe2/0x170
[ 1260.769346][   T10]      inet6_addr_add+0x12f/0xa40
[ 1260.769346][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1260.769346][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1260.769346][   T10]      netlink_rcv_skb+0x130/0x360
[ 1260.769346][   T10]      netlink_unicast+0x449/0x710
[ 1260.769346][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1260.769346][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1260.769346][   T10]      ___sys_sendmsg+0xee/0x170
[ 1260.769346][   T10]      __sys_sendmsg+0xcd/0x170
[ 1260.769346][   T10]      do_syscall_64+0xc6/0x1e0
[ 1260.769346][   T10] 
[ 1260.771569][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1260.771569][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1260.771569][   T10]      ipv6_find_idev+0x102/0x170
[ 1260.771569][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1260.771569][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1260.771569][   T10]      netlink_rcv_skb+0x130/0x360
[ 1260.771569][   T10]      netlink_unicast+0x449/0x710
[ 1260.771569][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1260.771569][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1260.771569][   T10]      ___sys_sendmsg+0xee/0x170
[ 1260.771569][   T10]      __sys_sendmsg+0xcd/0x170
[ 1260.771569][   T10]      do_syscall_64+0xc6/0x1e0
[ 1260.771569][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1260.771569][   T10] 
[ 1260.773303][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1260.773303][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1260.773303][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1260.773303][   T10]      ipv6_find_idev+0x102/0x170
[ 1260.773303][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1260.773303][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1260.773303][   T10]      netlink_rcv_skb+0x130/0x360
[ 1260.773303][   T10]      netlink_unicast+0x449/0x710
[ 1260.773303][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1260.773303][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1260.773303][   T10]      ___sys_sendmsg+0xee/0x170
[ 1260.773303][   T10]      __sys_sendmsg+0xcd/0x170
[ 1260.773303][   T10]      do_syscall_64+0xc6/0x1e0
[ 1260.773303][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1260.773303][   T10] 
[ 1260.775214][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1260.775487][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1260.775487][   T10]      dst_init+0x84/0x4a0
[ 1260.775487][   T10]      dst_alloc+0x97/0x150
[ 1260.775487][   T10]      ip6_dst_alloc+0x23/0x90
[ 1260.775487][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1260.775487][   T10]      ip6_pol_route+0x56f/0x840
[ 1260.775487][   T10]      fib6_rule_lookup+0x456/0x630
[ 1260.775487][   T10]      ip6_route_input+0x59c/0xa50
[ 1260.775487][   T10]      ipv6_rcv+0x397/0x810
[ 1260.775487][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1260.775487][   T10]      process_backlog+0x101/0x620
[ 1260.775487][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1260.775487][   T10]      net_rx_action+0x495/0xbe0
[ 1260.775487][   T10]      __do_softirq+0x1b5/0x7f6
[ 1260.775487][   T10] 
[ 1260.777350][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1260.777350][   T10]      netdev_get_by_index+0x5e/0x80
[ 1260.777350][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1260.777350][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1260.777350][   T10]      ip6_route_add+0x1c/0x140
[ 1260.777350][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1260.777350][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1260.777350][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1260.777350][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1260.777350][   T10]      netlink_rcv_skb+0x130/0x360
[ 1260.777350][   T10]      netlink_unicast+0x449/0x710
[ 1260.777350][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1260.777350][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1260.777350][   T10]      ___sys_sendmsg+0xee/0x170
[ 1260.777350][   T10]      __sys_sendmsg+0xcd/0x170
[ 1260.777350][   T10]      do_syscall_64+0xc6/0x1e0
[ 1260.777350][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1260.777350][   T10] 
[ 1260.779588][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1260.779588][   T10]      netdev_get_by_index+0x5e/0x80
[ 1260.779588][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1260.779588][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1260.779588][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1260.779588][   T10]      ipv6_add_addr+0x411/0x2000
[ 1260.779588][   T10]      inet6_addr_add+0x30e/0xa40
[ 1260.779588][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1260.779588][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1260.779588][   T10]      netlink_rcv_skb+0x130/0x360
[ 1260.779588][   T10]      netlink_unicast+0x449/0x710
[ 1260.779588][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1260.779588][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1260.779588][   T10]      ___sys_sendmsg+0xee/0x170
[ 1260.779588][   T10]      __sys_sendmsg+0xcd/0x170
[ 1260.779588][   T10]      do_syscall_64+0xc6/0x1e0
[ 1260.779588][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1260.779588][   T10] 
[ 1260.781714][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1260.781714][   T10]      netdev_get_by_index+0x5e/0x80
[ 1260.781714][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1260.781714][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1260.781714][   T10]      ip6_route_add+0x1c/0x140
[ 1260.781714][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1260.781714][   T10]      addrconf_add_dev+0xe2/0x170
[ 1260.781714][   T10]      inet6_addr_add+0x12f/0xa40
[ 1260.781714][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1260.781714][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1260.781714][   T10]      netlink_rcv_skb+0x130/0x360
[ 1260.781714][   T10]      netlink_unicast+0x449/0x710
[ 1260.781714][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1260.781714][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1260.781714][   T10]      ___sys_sendmsg+0xee/0x170
[ 1260.781714][   T10]      __sys_sendmsg+0xcd/0x170
[ 1260.781714][   T10]      do_syscall_64+0xc6/0x1e0
[ 1260.781714][   T10] 
[ 1260.783697][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1260.783697][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1260.783697][   T10]      ipv6_find_idev+0x102/0x170
[ 1260.783697][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1260.783697][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1260.783697][   T10]      netlink_rcv_skb+0x130/0x360
[ 1260.783697][   T10]      netlink_unicast+0x449/0x710
[ 1260.783697][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1260.783697][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1260.783697][   T10]      ___sys_sendmsg+0xee/0x170
[ 1260.783697][   T10]      __sys_sendmsg+0xcd/0x170
[ 1260.783697][   T10]      do_syscall_64+0xc6/0x1e0
[ 1260.783697][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1260.783697][   T10] 
[ 1260.785334][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1260.785334][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1260.785334][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1260.785334][   T10]      ipv6_find_idev+0x102/0x170
[ 1260.785334][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1260.785334][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1260.785334][   T10]      netlink_rcv_skb+0x130/0x360
[ 1260.785334][   T10]      netlink_unicast+0x449/0x710
[ 1260.785334][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1260.785334][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1260.785334][   T10]      ___sys_sendmsg+0xee/0x170
[ 1260.785334][   T10]      __sys_sendmsg+0xcd/0x170
[ 1260.785334][   T10]      do_syscall_64+0xc6/0x1e0
[ 1260.785334][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1260.785334][   T10] 
[ 1271.025822][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1271.026247][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1271.026247][   T10]      dst_init+0x84/0x4a0
[ 1271.026247][   T10]      dst_alloc+0x97/0x150
[ 1271.026247][   T10]      ip6_dst_alloc+0x23/0x90
[ 1271.026247][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1271.026247][   T10]      ip6_pol_route+0x56f/0x840
[ 1271.026247][   T10]      fib6_rule_lookup+0x456/0x630
[ 1271.026247][   T10]      ip6_route_input+0x59c/0xa50
[ 1271.026247][   T10]      ipv6_rcv+0x397/0x810
[ 1271.026247][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1271.026247][   T10]      process_backlog+0x101/0x620
[ 1271.026247][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1271.026247][   T10]      net_rx_action+0x495/0xbe0
[ 1271.026247][   T10]      __do_softirq+0x1b5/0x7f6
[ 1271.026247][   T10] 
[ 1271.027938][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1271.027938][   T10]      netdev_get_by_index+0x5e/0x80
[ 1271.027938][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1271.027938][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1271.027938][   T10]      ip6_route_add+0x1c/0x140
[ 1271.027938][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1271.027938][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1271.027938][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1271.027938][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1271.027938][   T10]      netlink_rcv_skb+0x130/0x360
[ 1271.027938][   T10]      netlink_unicast+0x449/0x710
[ 1271.027938][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1271.027938][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1271.027938][   T10]      ___sys_sendmsg+0xee/0x170
[ 1271.027938][   T10]      __sys_sendmsg+0xcd/0x170
[ 1271.027938][   T10]      do_syscall_64+0xc6/0x1e0
[ 1271.027938][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1271.027938][   T10] 
[ 1271.029944][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1271.029944][   T10]      netdev_get_by_index+0x5e/0x80
[ 1271.029944][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1271.029944][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1271.029944][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1271.029944][   T10]      ipv6_add_addr+0x411/0x2000
[ 1271.029944][   T10]      inet6_addr_add+0x30e/0xa40
[ 1271.029944][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1271.029944][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1271.029944][   T10]      netlink_rcv_skb+0x130/0x360
[ 1271.029944][   T10]      netlink_unicast+0x449/0x710
[ 1271.029944][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1271.029944][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1271.029944][   T10]      ___sys_sendmsg+0xee/0x170
[ 1271.029944][   T10]      __sys_sendmsg+0xcd/0x170
[ 1271.029944][   T10]      do_syscall_64+0xc6/0x1e0
[ 1271.029944][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1271.029944][   T10] 
[ 1271.031959][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1271.031959][   T10]      netdev_get_by_index+0x5e/0x80
[ 1271.031959][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1271.031959][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1271.031959][   T10]      ip6_route_add+0x1c/0x140
[ 1271.031959][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1271.031959][   T10]      addrconf_add_dev+0xe2/0x170
[ 1271.031959][   T10]      inet6_addr_add+0x12f/0xa40
[ 1271.031959][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1271.031959][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1271.031959][   T10]      netlink_rcv_skb+0x130/0x360
[ 1271.031959][   T10]      netlink_unicast+0x449/0x710
[ 1271.031959][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1271.031959][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1271.031959][   T10]      ___sys_sendmsg+0xee/0x170
[ 1271.031959][   T10]      __sys_sendmsg+0xcd/0x170
[ 1271.031959][   T10]      do_syscall_64+0xc6/0x1e0
[ 1271.031959][   T10] 
[ 1271.033934][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1271.033934][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1271.033934][   T10]      ipv6_find_idev+0x102/0x170
[ 1271.033934][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1271.033934][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1271.033934][   T10]      netlink_rcv_skb+0x130/0x360
[ 1271.033934][   T10]      netlink_unicast+0x449/0x710
[ 1271.033934][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1271.033934][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1271.033934][   T10]      ___sys_sendmsg+0xee/0x170
[ 1271.033934][   T10]      __sys_sendmsg+0xcd/0x170
[ 1271.033934][   T10]      do_syscall_64+0xc6/0x1e0
[ 1271.033934][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1271.033934][   T10] 
[ 1271.035489][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1271.035489][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1271.035489][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1271.035489][   T10]      ipv6_find_idev+0x102/0x170
[ 1271.035489][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1271.035489][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1271.035489][   T10]      netlink_rcv_skb+0x130/0x360
[ 1271.035489][   T10]      netlink_unicast+0x449/0x710
[ 1271.035489][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1271.035489][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1271.035489][   T10]      ___sys_sendmsg+0xee/0x170
[ 1271.035489][   T10]      __sys_sendmsg+0xcd/0x170
[ 1271.035489][   T10]      do_syscall_64+0xc6/0x1e0
[ 1271.035489][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1271.035489][   T10] 
[ 1271.037208][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1271.037452][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1271.037452][   T10]      dst_init+0x84/0x4a0
[ 1271.037452][   T10]      dst_alloc+0x97/0x150
[ 1271.037452][   T10]      ip6_dst_alloc+0x23/0x90
[ 1271.037452][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1271.037452][   T10]      ip6_pol_route+0x56f/0x840
[ 1271.037452][   T10]      fib6_rule_lookup+0x456/0x630
[ 1271.037452][   T10]      ip6_route_input+0x59c/0xa50
[ 1271.037452][   T10]      ipv6_rcv+0x397/0x810
[ 1271.037452][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1271.037452][   T10]      process_backlog+0x101/0x620
[ 1271.037452][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1271.037452][   T10]      net_rx_action+0x495/0xbe0
[ 1271.037452][   T10]      __do_softirq+0x1b5/0x7f6
[ 1271.037452][   T10] 
[ 1271.039095][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1271.039095][   T10]      netdev_get_by_index+0x5e/0x80
[ 1271.039095][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1271.039095][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1271.039095][   T10]      ip6_route_add+0x1c/0x140
[ 1271.039095][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1271.039095][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1271.039095][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1271.039095][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1271.039095][   T10]      netlink_rcv_skb+0x130/0x360
[ 1271.039095][   T10]      netlink_unicast+0x449/0x710
[ 1271.039095][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1271.039095][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1271.039095][   T10]      ___sys_sendmsg+0xee/0x170
[ 1271.039095][   T10]      __sys_sendmsg+0xcd/0x170
[ 1271.039095][   T10]      do_syscall_64+0xc6/0x1e0
[ 1271.039095][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1271.039095][   T10] 
[ 1271.041147][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1271.041147][   T10]      netdev_get_by_index+0x5e/0x80
[ 1271.041147][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1271.041147][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1271.041147][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1271.041147][   T10]      ipv6_add_addr+0x411/0x2000
[ 1271.041147][   T10]      inet6_addr_add+0x30e/0xa40
[ 1271.041147][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1271.041147][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1271.041147][   T10]      netlink_rcv_skb+0x130/0x360
[ 1271.041147][   T10]      netlink_unicast+0x449/0x710
[ 1271.041147][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1271.041147][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1271.041147][   T10]      ___sys_sendmsg+0xee/0x170
[ 1271.041147][   T10]      __sys_sendmsg+0xcd/0x170
[ 1271.041147][   T10]      do_syscall_64+0xc6/0x1e0
[ 1271.041147][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1271.041147][   T10] 
[ 1271.043162][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1271.043162][   T10]      netdev_get_by_index+0x5e/0x80
[ 1271.043162][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1271.043162][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1271.043162][   T10]      ip6_route_add+0x1c/0x140
[ 1271.043162][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1271.043162][   T10]      addrconf_add_dev+0xe2/0x170
[ 1271.043162][   T10]      inet6_addr_add+0x12f/0xa40
[ 1271.043162][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1271.043162][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1271.043162][   T10]      netlink_rcv_skb+0x130/0x360
[ 1271.043162][   T10]      netlink_unicast+0x449/0x710
[ 1271.043162][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1271.043162][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1271.043162][   T10]      ___sys_sendmsg+0xee/0x170
[ 1271.043162][   T10]      __sys_sendmsg+0xcd/0x170
[ 1271.043162][   T10]      do_syscall_64+0xc6/0x1e0
[ 1271.043162][   T10] 
[ 1271.045131][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1271.045131][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1271.045131][   T10]      ipv6_find_idev+0x102/0x170
[ 1271.045131][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1271.045131][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1271.045131][   T10]      netlink_rcv_skb+0x130/0x360
[ 1271.045131][   T10]      netlink_unicast+0x449/0x710
[ 1271.045131][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1271.045131][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1271.045131][   T10]      ___sys_sendmsg+0xee/0x170
[ 1271.045131][   T10]      __sys_sendmsg+0xcd/0x170
[ 1271.045131][   T10]      do_syscall_64+0xc6/0x1e0
[ 1271.045131][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1271.045131][   T10] 
[ 1271.046690][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1271.046690][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1271.046690][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1271.046690][   T10]      ipv6_find_idev+0x102/0x170
[ 1271.046690][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1271.046690][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1271.046690][   T10]      netlink_rcv_skb+0x130/0x360
[ 1271.046690][   T10]      netlink_unicast+0x449/0x710
[ 1271.046690][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1271.046690][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1271.046690][   T10]      ___sys_sendmsg+0xee/0x170
[ 1271.046690][   T10]      __sys_sendmsg+0xcd/0x170
[ 1271.046690][   T10]      do_syscall_64+0xc6/0x1e0
[ 1271.046690][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1271.046690][   T10] 
[ 1281.121785][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1281.122282][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1281.122282][   T10]      dst_init+0x84/0x4a0
[ 1281.122282][   T10]      dst_alloc+0x97/0x150
[ 1281.122282][   T10]      ip6_dst_alloc+0x23/0x90
[ 1281.122282][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1281.122282][   T10]      ip6_pol_route+0x56f/0x840
[ 1281.122282][   T10]      fib6_rule_lookup+0x456/0x630
[ 1281.122282][   T10]      ip6_route_input+0x59c/0xa50
[ 1281.122282][   T10]      ipv6_rcv+0x397/0x810
[ 1281.122282][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1281.122282][   T10]      process_backlog+0x101/0x620
[ 1281.122282][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1281.122282][   T10]      net_rx_action+0x495/0xbe0
[ 1281.122282][   T10]      __do_softirq+0x1b5/0x7f6
[ 1281.122282][   T10] 
[ 1281.124878][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1281.124878][   T10]      netdev_get_by_index+0x5e/0x80
[ 1281.124878][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1281.124878][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1281.124878][   T10]      ip6_route_add+0x1c/0x140
[ 1281.124878][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1281.124878][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1281.124878][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1281.124878][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1281.124878][   T10]      netlink_rcv_skb+0x130/0x360
[ 1281.124878][   T10]      netlink_unicast+0x449/0x710
[ 1281.124878][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1281.124878][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1281.124878][   T10]      ___sys_sendmsg+0xee/0x170
[ 1281.124878][   T10]      __sys_sendmsg+0xcd/0x170
[ 1281.124878][   T10]      do_syscall_64+0xc6/0x1e0
[ 1281.124878][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1281.124878][   T10] 
[ 1281.128004][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1281.128004][   T10]      netdev_get_by_index+0x5e/0x80
[ 1281.128004][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1281.128004][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1281.128004][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1281.128004][   T10]      ipv6_add_addr+0x411/0x2000
[ 1281.128004][   T10]      inet6_addr_add+0x30e/0xa40
[ 1281.128004][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1281.128004][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1281.128004][   T10]      netlink_rcv_skb+0x130/0x360
[ 1281.128004][   T10]      netlink_unicast+0x449/0x710
[ 1281.128004][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1281.128004][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1281.128004][   T10]      ___sys_sendmsg+0xee/0x170
[ 1281.128004][   T10]      __sys_sendmsg+0xcd/0x170
[ 1281.128004][   T10]      do_syscall_64+0xc6/0x1e0
[ 1281.128004][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1281.128004][   T10] 
[ 1281.131098][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1281.131098][   T10]      netdev_get_by_index+0x5e/0x80
[ 1281.131098][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1281.131098][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1281.131098][   T10]      ip6_route_add+0x1c/0x140
[ 1281.131098][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1281.131098][   T10]      addrconf_add_dev+0xe2/0x170
[ 1281.131098][   T10]      inet6_addr_add+0x12f/0xa40
[ 1281.131098][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1281.131098][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1281.131098][   T10]      netlink_rcv_skb+0x130/0x360
[ 1281.131098][   T10]      netlink_unicast+0x449/0x710
[ 1281.131098][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1281.131098][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1281.131098][   T10]      ___sys_sendmsg+0xee/0x170
[ 1281.131098][   T10]      __sys_sendmsg+0xcd/0x170
[ 1281.131098][   T10]      do_syscall_64+0xc6/0x1e0
[ 1281.131098][   T10] 
[ 1281.134220][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1281.134220][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1281.134220][   T10]      ipv6_find_idev+0x102/0x170
[ 1281.134220][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1281.134220][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1281.134220][   T10]      netlink_rcv_skb+0x130/0x360
[ 1281.134220][   T10]      netlink_unicast+0x449/0x710
[ 1281.134220][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1281.134220][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1281.134220][   T10]      ___sys_sendmsg+0xee/0x170
[ 1281.134220][   T10]      __sys_sendmsg+0xcd/0x170
[ 1281.134220][   T10]      do_syscall_64+0xc6/0x1e0
[ 1281.134220][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1281.134220][   T10] 
[ 1281.136469][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1281.136469][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1281.136469][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1281.136469][   T10]      ipv6_find_idev+0x102/0x170
[ 1281.136469][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1281.136469][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1281.136469][   T10]      netlink_rcv_skb+0x130/0x360
[ 1281.136469][   T10]      netlink_unicast+0x449/0x710
[ 1281.136469][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1281.136469][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1281.136469][   T10]      ___sys_sendmsg+0xee/0x170
[ 1281.136469][   T10]      __sys_sendmsg+0xcd/0x170
[ 1281.136469][   T10]      do_syscall_64+0xc6/0x1e0
[ 1281.136469][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1281.136469][   T10] 
[ 1281.138203][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1281.138452][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1281.138452][   T10]      dst_init+0x84/0x4a0
[ 1281.138452][   T10]      dst_alloc+0x97/0x150
[ 1281.138452][   T10]      ip6_dst_alloc+0x23/0x90
[ 1281.138452][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1281.138452][   T10]      ip6_pol_route+0x56f/0x840
[ 1281.138452][   T10]      fib6_rule_lookup+0x456/0x630
[ 1281.138452][   T10]      ip6_route_input+0x59c/0xa50
[ 1281.138452][   T10]      ipv6_rcv+0x397/0x810
[ 1281.138452][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1281.138452][   T10]      process_backlog+0x101/0x620
[ 1281.138452][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1281.138452][   T10]      net_rx_action+0x495/0xbe0
[ 1281.138452][   T10]      __do_softirq+0x1b5/0x7f6
[ 1281.138452][   T10] 
[ 1281.140128][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1281.140128][   T10]      netdev_get_by_index+0x5e/0x80
[ 1281.140128][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1281.140128][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1281.140128][   T10]      ip6_route_add+0x1c/0x140
[ 1281.140128][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1281.140128][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1281.140128][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1281.140128][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1281.140128][   T10]      netlink_rcv_skb+0x130/0x360
[ 1281.140128][   T10]      netlink_unicast+0x449/0x710
[ 1281.140128][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1281.140128][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1281.140128][   T10]      ___sys_sendmsg+0xee/0x170
[ 1281.140128][   T10]      __sys_sendmsg+0xcd/0x170
[ 1281.140128][   T10]      do_syscall_64+0xc6/0x1e0
[ 1281.140128][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1281.140128][   T10] 
[ 1281.142186][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1281.142186][   T10]      netdev_get_by_index+0x5e/0x80
[ 1281.142186][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1281.142186][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1281.142186][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1281.142186][   T10]      ipv6_add_addr+0x411/0x2000
[ 1281.142186][   T10]      inet6_addr_add+0x30e/0xa40
[ 1281.142186][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1281.142186][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1281.142186][   T10]      netlink_rcv_skb+0x130/0x360
[ 1281.142186][   T10]      netlink_unicast+0x449/0x710
[ 1281.142186][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1281.142186][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1281.142186][   T10]      ___sys_sendmsg+0xee/0x170
[ 1281.142186][   T10]      __sys_sendmsg+0xcd/0x170
[ 1281.142186][   T10]      do_syscall_64+0xc6/0x1e0
[ 1281.142186][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1281.142186][   T10] 
[ 1281.144213][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1281.144213][   T10]      netdev_get_by_index+0x5e/0x80
[ 1281.144213][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1281.144213][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1281.144213][   T10]      ip6_route_add+0x1c/0x140
[ 1281.144213][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1281.144213][   T10]      addrconf_add_dev+0xe2/0x170
[ 1281.144213][   T10]      inet6_addr_add+0x12f/0xa40
[ 1281.144213][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1281.144213][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1281.144213][   T10]      netlink_rcv_skb+0x130/0x360
[ 1281.144213][   T10]      netlink_unicast+0x449/0x710
[ 1281.144213][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1281.144213][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1281.144213][   T10]      ___sys_sendmsg+0xee/0x170
[ 1281.144213][   T10]      __sys_sendmsg+0xcd/0x170
[ 1281.144213][   T10]      do_syscall_64+0xc6/0x1e0
[ 1281.144213][   T10] 
[ 1281.146221][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1281.146221][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1281.146221][   T10]      ipv6_find_idev+0x102/0x170
[ 1281.146221][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1281.146221][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1281.146221][   T10]      netlink_rcv_skb+0x130/0x360
[ 1281.146221][   T10]      netlink_unicast+0x449/0x710
[ 1281.146221][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1281.146221][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1281.146221][   T10]      ___sys_sendmsg+0xee/0x170
[ 1281.146221][   T10]      __sys_sendmsg+0xcd/0x170
[ 1281.146221][   T10]      do_syscall_64+0xc6/0x1e0
[ 1281.146221][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1281.146221][   T10] 
[ 1281.147777][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1281.147777][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1281.147777][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1281.147777][   T10]      ipv6_find_idev+0x102/0x170
[ 1281.147777][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1281.147777][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1281.147777][   T10]      netlink_rcv_skb+0x130/0x360
[ 1281.147777][   T10]      netlink_unicast+0x449/0x710
[ 1281.147777][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1281.147777][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1281.147777][   T10]      ___sys_sendmsg+0xee/0x170
[ 1281.147777][   T10]      __sys_sendmsg+0xcd/0x170
[ 1281.147777][   T10]      do_syscall_64+0xc6/0x1e0
[ 1281.147777][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1281.147777][   T10] 
[ 1291.201822][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1291.202154][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1291.202154][   T10]      dst_init+0x84/0x4a0
[ 1291.202154][   T10]      dst_alloc+0x97/0x150
[ 1291.202154][   T10]      ip6_dst_alloc+0x23/0x90
[ 1291.202154][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1291.202154][   T10]      ip6_pol_route+0x56f/0x840
[ 1291.202154][   T10]      fib6_rule_lookup+0x456/0x630
[ 1291.202154][   T10]      ip6_route_input+0x59c/0xa50
[ 1291.202154][   T10]      ipv6_rcv+0x397/0x810
[ 1291.202154][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1291.202154][   T10]      process_backlog+0x101/0x620
[ 1291.202154][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1291.202154][   T10]      net_rx_action+0x495/0xbe0
[ 1291.202154][   T10]      __do_softirq+0x1b5/0x7f6
[ 1291.202154][   T10] 
[ 1291.203907][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1291.203907][   T10]      netdev_get_by_index+0x5e/0x80
[ 1291.203907][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1291.203907][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1291.203907][   T10]      ip6_route_add+0x1c/0x140
[ 1291.203907][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1291.203907][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1291.203907][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1291.203907][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1291.203907][   T10]      netlink_rcv_skb+0x130/0x360
[ 1291.203907][   T10]      netlink_unicast+0x449/0x710
[ 1291.203907][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1291.203907][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1291.203907][   T10]      ___sys_sendmsg+0xee/0x170
[ 1291.203907][   T10]      __sys_sendmsg+0xcd/0x170
[ 1291.203907][   T10]      do_syscall_64+0xc6/0x1e0
[ 1291.203907][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1291.203907][   T10] 
[ 1291.205904][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1291.205904][   T10]      netdev_get_by_index+0x5e/0x80
[ 1291.205904][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1291.205904][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1291.205904][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1291.205904][   T10]      ipv6_add_addr+0x411/0x2000
[ 1291.205904][   T10]      inet6_addr_add+0x30e/0xa40
[ 1291.205904][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1291.205904][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1291.205904][   T10]      netlink_rcv_skb+0x130/0x360
[ 1291.205904][   T10]      netlink_unicast+0x449/0x710
[ 1291.205904][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1291.205904][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1291.205904][   T10]      ___sys_sendmsg+0xee/0x170
[ 1291.205904][   T10]      __sys_sendmsg+0xcd/0x170
[ 1291.205904][   T10]      do_syscall_64+0xc6/0x1e0
[ 1291.205904][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1291.205904][   T10] 
[ 1291.207920][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1291.207920][   T10]      netdev_get_by_index+0x5e/0x80
[ 1291.207920][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1291.207920][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1291.207920][   T10]      ip6_route_add+0x1c/0x140
[ 1291.207920][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1291.207920][   T10]      addrconf_add_dev+0xe2/0x170
[ 1291.207920][   T10]      inet6_addr_add+0x12f/0xa40
[ 1291.207920][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1291.207920][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1291.207920][   T10]      netlink_rcv_skb+0x130/0x360
[ 1291.207920][   T10]      netlink_unicast+0x449/0x710
[ 1291.207920][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1291.207920][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1291.207920][   T10]      ___sys_sendmsg+0xee/0x170
[ 1291.207920][   T10]      __sys_sendmsg+0xcd/0x170
[ 1291.207920][   T10]      do_syscall_64+0xc6/0x1e0
[ 1291.207920][   T10] 
[ 1291.209881][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1291.209881][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1291.209881][   T10]      ipv6_find_idev+0x102/0x170
[ 1291.209881][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1291.209881][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1291.209881][   T10]      netlink_rcv_skb+0x130/0x360
[ 1291.209881][   T10]      netlink_unicast+0x449/0x710
[ 1291.209881][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1291.209881][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1291.209881][   T10]      ___sys_sendmsg+0xee/0x170
[ 1291.209881][   T10]      __sys_sendmsg+0xcd/0x170
[ 1291.209881][   T10]      do_syscall_64+0xc6/0x1e0
[ 1291.209881][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1291.209881][   T10] 
[ 1291.211426][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1291.211426][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1291.211426][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1291.211426][   T10]      ipv6_find_idev+0x102/0x170
[ 1291.211426][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1291.211426][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1291.211426][   T10]      netlink_rcv_skb+0x130/0x360
[ 1291.211426][   T10]      netlink_unicast+0x449/0x710
[ 1291.211426][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1291.211426][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1291.211426][   T10]      ___sys_sendmsg+0xee/0x170
[ 1291.211426][   T10]      __sys_sendmsg+0xcd/0x170
[ 1291.211426][   T10]      do_syscall_64+0xc6/0x1e0
[ 1291.211426][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1291.211426][   T10] 
[ 1291.213118][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1291.213354][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1291.213354][   T10]      dst_init+0x84/0x4a0
[ 1291.213354][   T10]      dst_alloc+0x97/0x150
[ 1291.213354][   T10]      ip6_dst_alloc+0x23/0x90
[ 1291.213354][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1291.213354][   T10]      ip6_pol_route+0x56f/0x840
[ 1291.213354][   T10]      fib6_rule_lookup+0x456/0x630
[ 1291.213354][   T10]      ip6_route_input+0x59c/0xa50
[ 1291.213354][   T10]      ipv6_rcv+0x397/0x810
[ 1291.213354][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1291.213354][   T10]      process_backlog+0x101/0x620
[ 1291.213354][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1291.213354][   T10]      net_rx_action+0x495/0xbe0
[ 1291.213354][   T10]      __do_softirq+0x1b5/0x7f6
[ 1291.213354][   T10] 
[ 1291.214998][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1291.214998][   T10]      netdev_get_by_index+0x5e/0x80
[ 1291.214998][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1291.214998][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1291.214998][   T10]      ip6_route_add+0x1c/0x140
[ 1291.214998][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1291.214998][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1291.214998][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1291.214998][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1291.214998][   T10]      netlink_rcv_skb+0x130/0x360
[ 1291.214998][   T10]      netlink_unicast+0x449/0x710
[ 1291.214998][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1291.214998][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1291.214998][   T10]      ___sys_sendmsg+0xee/0x170
[ 1291.214998][   T10]      __sys_sendmsg+0xcd/0x170
[ 1291.214998][   T10]      do_syscall_64+0xc6/0x1e0
[ 1291.214998][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1291.214998][   T10] 
[ 1291.217004][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1291.217004][   T10]      netdev_get_by_index+0x5e/0x80
[ 1291.217004][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1291.217004][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1291.217004][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1291.217004][   T10]      ipv6_add_addr+0x411/0x2000
[ 1291.217004][   T10]      inet6_addr_add+0x30e/0xa40
[ 1291.217004][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1291.217004][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1291.217004][   T10]      netlink_rcv_skb+0x130/0x360
[ 1291.217004][   T10]      netlink_unicast+0x449/0x710
[ 1291.217004][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1291.217004][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1291.217004][   T10]      ___sys_sendmsg+0xee/0x170
[ 1291.217004][   T10]      __sys_sendmsg+0xcd/0x170
[ 1291.217004][   T10]      do_syscall_64+0xc6/0x1e0
[ 1291.217004][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1291.217004][   T10] 
[ 1291.219000][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1291.219000][   T10]      netdev_get_by_index+0x5e/0x80
[ 1291.219000][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1291.219000][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1291.219000][   T10]      ip6_route_add+0x1c/0x140
[ 1291.219000][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1291.219000][   T10]      addrconf_add_dev+0xe2/0x170
[ 1291.219000][   T10]      inet6_addr_add+0x12f/0xa40
[ 1291.219000][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1291.219000][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1291.219000][   T10]      netlink_rcv_skb+0x130/0x360
[ 1291.219000][   T10]      netlink_unicast+0x449/0x710
[ 1291.219000][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1291.219000][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1291.219000][   T10]      ___sys_sendmsg+0xee/0x170
[ 1291.219000][   T10]      __sys_sendmsg+0xcd/0x170
[ 1291.219000][   T10]      do_syscall_64+0xc6/0x1e0
[ 1291.219000][   T10] 
[ 1291.220964][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1291.220964][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1291.220964][   T10]      ipv6_find_idev+0x102/0x170
[ 1291.220964][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1291.220964][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1291.220964][   T10]      netlink_rcv_skb+0x130/0x360
[ 1291.220964][   T10]      netlink_unicast+0x449/0x710
[ 1291.220964][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1291.220964][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1291.220964][   T10]      ___sys_sendmsg+0xee/0x170
[ 1291.220964][   T10]      __sys_sendmsg+0xcd/0x170
[ 1291.220964][   T10]      do_syscall_64+0xc6/0x1e0
[ 1291.220964][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1291.220964][   T10] 
[ 1291.222499][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1291.222499][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1291.222499][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1291.222499][   T10]      ipv6_find_idev+0x102/0x170
[ 1291.222499][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1291.222499][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1291.222499][   T10]      netlink_rcv_skb+0x130/0x360
[ 1291.222499][   T10]      netlink_unicast+0x449/0x710
[ 1291.222499][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1291.222499][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1291.222499][   T10]      ___sys_sendmsg+0xee/0x170
[ 1291.222499][   T10]      __sys_sendmsg+0xcd/0x170
[ 1291.222499][   T10]      do_syscall_64+0xc6/0x1e0
[ 1291.222499][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1291.222499][   T10] 
[ 1301.281767][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1301.282098][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1301.282098][   T10]      dst_init+0x84/0x4a0
[ 1301.282098][   T10]      dst_alloc+0x97/0x150
[ 1301.282098][   T10]      ip6_dst_alloc+0x23/0x90
[ 1301.282098][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1301.282098][   T10]      ip6_pol_route+0x56f/0x840
[ 1301.282098][   T10]      fib6_rule_lookup+0x456/0x630
[ 1301.282098][   T10]      ip6_route_input+0x59c/0xa50
[ 1301.282098][   T10]      ipv6_rcv+0x397/0x810
[ 1301.282098][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1301.282098][   T10]      process_backlog+0x101/0x620
[ 1301.282098][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1301.282098][   T10]      net_rx_action+0x495/0xbe0
[ 1301.282098][   T10]      __do_softirq+0x1b5/0x7f6
[ 1301.282098][   T10] 
[ 1301.283773][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1301.283773][   T10]      netdev_get_by_index+0x5e/0x80
[ 1301.283773][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1301.283773][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1301.283773][   T10]      ip6_route_add+0x1c/0x140
[ 1301.283773][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1301.283773][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1301.283773][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1301.283773][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1301.283773][   T10]      netlink_rcv_skb+0x130/0x360
[ 1301.283773][   T10]      netlink_unicast+0x449/0x710
[ 1301.283773][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1301.283773][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1301.283773][   T10]      ___sys_sendmsg+0xee/0x170
[ 1301.283773][   T10]      __sys_sendmsg+0xcd/0x170
[ 1301.283773][   T10]      do_syscall_64+0xc6/0x1e0
[ 1301.283773][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1301.283773][   T10] 
[ 1301.285999][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1301.285999][   T10]      netdev_get_by_index+0x5e/0x80
[ 1301.285999][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1301.285999][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1301.285999][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1301.285999][   T10]      ipv6_add_addr+0x411/0x2000
[ 1301.285999][   T10]      inet6_addr_add+0x30e/0xa40
[ 1301.285999][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1301.285999][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1301.285999][   T10]      netlink_rcv_skb+0x130/0x360
[ 1301.285999][   T10]      netlink_unicast+0x449/0x710
[ 1301.285999][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1301.285999][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1301.285999][   T10]      ___sys_sendmsg+0xee/0x170
[ 1301.285999][   T10]      __sys_sendmsg+0xcd/0x170
[ 1301.285999][   T10]      do_syscall_64+0xc6/0x1e0
[ 1301.285999][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1301.285999][   T10] 
[ 1301.288837][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1301.288837][   T10]      netdev_get_by_index+0x5e/0x80
[ 1301.288837][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1301.288837][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1301.288837][   T10]      ip6_route_add+0x1c/0x140
[ 1301.288837][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1301.288837][   T10]      addrconf_add_dev+0xe2/0x170
[ 1301.288837][   T10]      inet6_addr_add+0x12f/0xa40
[ 1301.288837][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1301.288837][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1301.288837][   T10]      netlink_rcv_skb+0x130/0x360
[ 1301.288837][   T10]      netlink_unicast+0x449/0x710
[ 1301.288837][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1301.288837][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1301.288837][   T10]      ___sys_sendmsg+0xee/0x170
[ 1301.288837][   T10]      __sys_sendmsg+0xcd/0x170
[ 1301.288837][   T10]      do_syscall_64+0xc6/0x1e0
[ 1301.288837][   T10] 
[ 1301.292038][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1301.292038][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1301.292038][   T10]      ipv6_find_idev+0x102/0x170
[ 1301.292038][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1301.292038][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1301.292038][   T10]      netlink_rcv_skb+0x130/0x360
[ 1301.292038][   T10]      netlink_unicast+0x449/0x710
[ 1301.292038][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1301.292038][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1301.292038][   T10]      ___sys_sendmsg+0xee/0x170
[ 1301.292038][   T10]      __sys_sendmsg+0xcd/0x170
[ 1301.292038][   T10]      do_syscall_64+0xc6/0x1e0
[ 1301.292038][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1301.292038][   T10] 
[ 1301.294529][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1301.294529][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1301.294529][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1301.294529][   T10]      ipv6_find_idev+0x102/0x170
[ 1301.294529][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1301.294529][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1301.294529][   T10]      netlink_rcv_skb+0x130/0x360
[ 1301.294529][   T10]      netlink_unicast+0x449/0x710
[ 1301.294529][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1301.294529][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1301.294529][   T10]      ___sys_sendmsg+0xee/0x170
[ 1301.294529][   T10]      __sys_sendmsg+0xcd/0x170
[ 1301.294529][   T10]      do_syscall_64+0xc6/0x1e0
[ 1301.294529][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1301.294529][   T10] 
[ 1301.297345][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1301.297745][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1301.297745][   T10]      dst_init+0x84/0x4a0
[ 1301.297745][   T10]      dst_alloc+0x97/0x150
[ 1301.297745][   T10]      ip6_dst_alloc+0x23/0x90
[ 1301.297745][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1301.297745][   T10]      ip6_pol_route+0x56f/0x840
[ 1301.297745][   T10]      fib6_rule_lookup+0x456/0x630
[ 1301.297745][   T10]      ip6_route_input+0x59c/0xa50
[ 1301.297745][   T10]      ipv6_rcv+0x397/0x810
[ 1301.297745][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1301.297745][   T10]      process_backlog+0x101/0x620
[ 1301.297745][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1301.297745][   T10]      net_rx_action+0x495/0xbe0
[ 1301.297745][   T10]      __do_softirq+0x1b5/0x7f6
[ 1301.297745][   T10] 
[ 1301.300450][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1301.300450][   T10]      netdev_get_by_index+0x5e/0x80
[ 1301.300450][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1301.300450][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1301.300450][   T10]      ip6_route_add+0x1c/0x140
[ 1301.300450][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1301.300450][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1301.300450][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1301.300450][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1301.300450][   T10]      netlink_rcv_skb+0x130/0x360
[ 1301.300450][   T10]      netlink_unicast+0x449/0x710
[ 1301.300450][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1301.300450][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1301.300450][   T10]      ___sys_sendmsg+0xee/0x170
[ 1301.300450][   T10]      __sys_sendmsg+0xcd/0x170
[ 1301.300450][   T10]      do_syscall_64+0xc6/0x1e0
[ 1301.300450][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1301.300450][   T10] 
[ 1301.303771][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1301.303771][   T10]      netdev_get_by_index+0x5e/0x80
[ 1301.303771][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1301.303771][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1301.303771][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1301.303771][   T10]      ipv6_add_addr+0x411/0x2000
[ 1301.303771][   T10]      inet6_addr_add+0x30e/0xa40
[ 1301.303771][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1301.303771][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1301.303771][   T10]      netlink_rcv_skb+0x130/0x360
[ 1301.303771][   T10]      netlink_unicast+0x449/0x710
[ 1301.303771][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1301.303771][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1301.303771][   T10]      ___sys_sendmsg+0xee/0x170
[ 1301.303771][   T10]      __sys_sendmsg+0xcd/0x170
[ 1301.303771][   T10]      do_syscall_64+0xc6/0x1e0
[ 1301.303771][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1301.303771][   T10] 
[ 1301.307078][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1301.307078][   T10]      netdev_get_by_index+0x5e/0x80
[ 1301.307078][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1301.307078][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1301.307078][   T10]      ip6_route_add+0x1c/0x140
[ 1301.307078][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1301.307078][   T10]      addrconf_add_dev+0xe2/0x170
[ 1301.307078][   T10]      inet6_addr_add+0x12f/0xa40
[ 1301.307078][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1301.307078][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1301.307078][   T10]      netlink_rcv_skb+0x130/0x360
[ 1301.307078][   T10]      netlink_unicast+0x449/0x710
[ 1301.307078][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1301.307078][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1301.307078][   T10]      ___sys_sendmsg+0xee/0x170
[ 1301.307078][   T10]      __sys_sendmsg+0xcd/0x170
[ 1301.307078][   T10]      do_syscall_64+0xc6/0x1e0
[ 1301.307078][   T10] 
[ 1301.310228][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1301.310228][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1301.310228][   T10]      ipv6_find_idev+0x102/0x170
[ 1301.310228][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1301.310228][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1301.310228][   T10]      netlink_rcv_skb+0x130/0x360
[ 1301.310228][   T10]      netlink_unicast+0x449/0x710
[ 1301.310228][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1301.310228][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1301.310228][   T10]      ___sys_sendmsg+0xee/0x170
[ 1301.310228][   T10]      __sys_sendmsg+0xcd/0x170
[ 1301.310228][   T10]      do_syscall_64+0xc6/0x1e0
[ 1301.310228][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1301.310228][   T10] 
[ 1301.312700][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1301.312700][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1301.312700][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1301.312700][   T10]      ipv6_find_idev+0x102/0x170
[ 1301.312700][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1301.312700][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1301.312700][   T10]      netlink_rcv_skb+0x130/0x360
[ 1301.312700][   T10]      netlink_unicast+0x449/0x710
[ 1301.312700][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1301.312700][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1301.312700][   T10]      ___sys_sendmsg+0xee/0x170
[ 1301.312700][   T10]      __sys_sendmsg+0xcd/0x170
[ 1301.312700][   T10]      do_syscall_64+0xc6/0x1e0
[ 1301.312700][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1301.312700][   T10] 
[ 1311.393754][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1311.394104][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1311.394104][   T10]      dst_init+0x84/0x4a0
[ 1311.394104][   T10]      dst_alloc+0x97/0x150
[ 1311.394104][   T10]      ip6_dst_alloc+0x23/0x90
[ 1311.394104][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1311.394104][   T10]      ip6_pol_route+0x56f/0x840
[ 1311.394104][   T10]      fib6_rule_lookup+0x456/0x630
[ 1311.394104][   T10]      ip6_route_input+0x59c/0xa50
[ 1311.394104][   T10]      ipv6_rcv+0x397/0x810
[ 1311.394104][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1311.394104][   T10]      process_backlog+0x101/0x620
[ 1311.394104][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1311.394104][   T10]      net_rx_action+0x495/0xbe0
[ 1311.394104][   T10]      __do_softirq+0x1b5/0x7f6
[ 1311.394104][   T10] 
[ 1311.395836][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1311.395836][   T10]      netdev_get_by_index+0x5e/0x80
[ 1311.395836][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1311.395836][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1311.395836][   T10]      ip6_route_add+0x1c/0x140
[ 1311.395836][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1311.395836][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1311.395836][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1311.395836][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1311.395836][   T10]      netlink_rcv_skb+0x130/0x360
[ 1311.395836][   T10]      netlink_unicast+0x449/0x710
[ 1311.395836][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1311.395836][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1311.395836][   T10]      ___sys_sendmsg+0xee/0x170
[ 1311.395836][   T10]      __sys_sendmsg+0xcd/0x170
[ 1311.395836][   T10]      do_syscall_64+0xc6/0x1e0
[ 1311.395836][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1311.395836][   T10] 
[ 1311.397992][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1311.397992][   T10]      netdev_get_by_index+0x5e/0x80
[ 1311.397992][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1311.397992][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1311.397992][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1311.397992][   T10]      ipv6_add_addr+0x411/0x2000
[ 1311.397992][   T10]      inet6_addr_add+0x30e/0xa40
[ 1311.397992][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1311.397992][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1311.397992][   T10]      netlink_rcv_skb+0x130/0x360
[ 1311.397992][   T10]      netlink_unicast+0x449/0x710
[ 1311.397992][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1311.397992][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1311.397992][   T10]      ___sys_sendmsg+0xee/0x170
[ 1311.397992][   T10]      __sys_sendmsg+0xcd/0x170
[ 1311.397992][   T10]      do_syscall_64+0xc6/0x1e0
[ 1311.397992][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1311.397992][   T10] 
[ 1311.400043][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1311.400043][   T10]      netdev_get_by_index+0x5e/0x80
[ 1311.400043][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1311.400043][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1311.400043][   T10]      ip6_route_add+0x1c/0x140
[ 1311.400043][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1311.400043][   T10]      addrconf_add_dev+0xe2/0x170
[ 1311.400043][   T10]      inet6_addr_add+0x12f/0xa40
[ 1311.400043][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1311.400043][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1311.400043][   T10]      netlink_rcv_skb+0x130/0x360
[ 1311.400043][   T10]      netlink_unicast+0x449/0x710
[ 1311.400043][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1311.400043][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1311.400043][   T10]      ___sys_sendmsg+0xee/0x170
[ 1311.400043][   T10]      __sys_sendmsg+0xcd/0x170
[ 1311.400043][   T10]      do_syscall_64+0xc6/0x1e0
[ 1311.400043][   T10] 
[ 1311.402036][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1311.402036][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1311.402036][   T10]      ipv6_find_idev+0x102/0x170
[ 1311.402036][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1311.402036][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1311.402036][   T10]      netlink_rcv_skb+0x130/0x360
[ 1311.402036][   T10]      netlink_unicast+0x449/0x710
[ 1311.402036][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1311.402036][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1311.402036][   T10]      ___sys_sendmsg+0xee/0x170
[ 1311.402036][   T10]      __sys_sendmsg+0xcd/0x170
[ 1311.402036][   T10]      do_syscall_64+0xc6/0x1e0
[ 1311.402036][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1311.402036][   T10] 
[ 1311.403596][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1311.403596][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1311.403596][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1311.403596][   T10]      ipv6_find_idev+0x102/0x170
[ 1311.403596][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1311.403596][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1311.403596][   T10]      netlink_rcv_skb+0x130/0x360
[ 1311.403596][   T10]      netlink_unicast+0x449/0x710
[ 1311.403596][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1311.403596][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1311.403596][   T10]      ___sys_sendmsg+0xee/0x170
[ 1311.403596][   T10]      __sys_sendmsg+0xcd/0x170
[ 1311.403596][   T10]      do_syscall_64+0xc6/0x1e0
[ 1311.403596][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1311.403596][   T10] 
[ 1311.405323][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1311.405563][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1311.405563][   T10]      dst_init+0x84/0x4a0
[ 1311.405563][   T10]      dst_alloc+0x97/0x150
[ 1311.405563][   T10]      ip6_dst_alloc+0x23/0x90
[ 1311.405563][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1311.405563][   T10]      ip6_pol_route+0x56f/0x840
[ 1311.405563][   T10]      fib6_rule_lookup+0x456/0x630
[ 1311.405563][   T10]      ip6_route_input+0x59c/0xa50
[ 1311.405563][   T10]      ipv6_rcv+0x397/0x810
[ 1311.405563][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1311.405563][   T10]      process_backlog+0x101/0x620
[ 1311.405563][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1311.405563][   T10]      net_rx_action+0x495/0xbe0
[ 1311.405563][   T10]      __do_softirq+0x1b5/0x7f6
[ 1311.405563][   T10] 
[ 1311.407235][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1311.407235][   T10]      netdev_get_by_index+0x5e/0x80
[ 1311.407235][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1311.407235][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1311.407235][   T10]      ip6_route_add+0x1c/0x140
[ 1311.407235][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1311.407235][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1311.407235][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1311.407235][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1311.407235][   T10]      netlink_rcv_skb+0x130/0x360
[ 1311.407235][   T10]      netlink_unicast+0x449/0x710
[ 1311.407235][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1311.407235][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1311.407235][   T10]      ___sys_sendmsg+0xee/0x170
[ 1311.407235][   T10]      __sys_sendmsg+0xcd/0x170
[ 1311.407235][   T10]      do_syscall_64+0xc6/0x1e0
[ 1311.407235][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1311.407235][   T10] 
[ 1311.409265][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1311.409265][   T10]      netdev_get_by_index+0x5e/0x80
[ 1311.409265][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1311.409265][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1311.409265][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1311.409265][   T10]      ipv6_add_addr+0x411/0x2000
[ 1311.409265][   T10]      inet6_addr_add+0x30e/0xa40
[ 1311.409265][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1311.409265][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1311.409265][   T10]      netlink_rcv_skb+0x130/0x360
[ 1311.409265][   T10]      netlink_unicast+0x449/0x710
[ 1311.409265][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1311.409265][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1311.409265][   T10]      ___sys_sendmsg+0xee/0x170
[ 1311.409265][   T10]      __sys_sendmsg+0xcd/0x170
[ 1311.409265][   T10]      do_syscall_64+0xc6/0x1e0
[ 1311.409265][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1311.409265][   T10] 
[ 1311.411301][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1311.411301][   T10]      netdev_get_by_index+0x5e/0x80
[ 1311.411301][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1311.411301][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1311.411301][   T10]      ip6_route_add+0x1c/0x140
[ 1311.411301][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1311.411301][   T10]      addrconf_add_dev+0xe2/0x170
[ 1311.411301][   T10]      inet6_addr_add+0x12f/0xa40
[ 1311.411301][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1311.411301][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1311.411301][   T10]      netlink_rcv_skb+0x130/0x360
[ 1311.411301][   T10]      netlink_unicast+0x449/0x710
[ 1311.411301][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1311.411301][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1311.411301][   T10]      ___sys_sendmsg+0xee/0x170
[ 1311.411301][   T10]      __sys_sendmsg+0xcd/0x170
[ 1311.411301][   T10]      do_syscall_64+0xc6/0x1e0
[ 1311.411301][   T10] 
[ 1311.413302][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1311.413302][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1311.413302][   T10]      ipv6_find_idev+0x102/0x170
[ 1311.413302][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1311.413302][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1311.413302][   T10]      netlink_rcv_skb+0x130/0x360
[ 1311.413302][   T10]      netlink_unicast+0x449/0x710
[ 1311.413302][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1311.413302][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1311.413302][   T10]      ___sys_sendmsg+0xee/0x170
[ 1311.413302][   T10]      __sys_sendmsg+0xcd/0x170
[ 1311.413302][   T10]      do_syscall_64+0xc6/0x1e0
[ 1311.413302][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1311.413302][   T10] 
[ 1311.414865][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1311.414865][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1311.414865][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1311.414865][   T10]      ipv6_find_idev+0x102/0x170
[ 1311.414865][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1311.414865][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1311.414865][   T10]      netlink_rcv_skb+0x130/0x360
[ 1311.414865][   T10]      netlink_unicast+0x449/0x710
[ 1311.414865][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1311.414865][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1311.414865][   T10]      ___sys_sendmsg+0xee/0x170
[ 1311.414865][   T10]      __sys_sendmsg+0xcd/0x170
[ 1311.414865][   T10]      do_syscall_64+0xc6/0x1e0
[ 1311.414865][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1311.414865][   T10] 
[ 1321.657752][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1321.658192][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1321.658192][   T10]      dst_init+0x84/0x4a0
[ 1321.658192][   T10]      dst_alloc+0x97/0x150
[ 1321.658192][   T10]      ip6_dst_alloc+0x23/0x90
[ 1321.658192][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1321.658192][   T10]      ip6_pol_route+0x56f/0x840
[ 1321.658192][   T10]      fib6_rule_lookup+0x456/0x630
[ 1321.658192][   T10]      ip6_route_input+0x59c/0xa50
[ 1321.658192][   T10]      ipv6_rcv+0x397/0x810
[ 1321.658192][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1321.658192][   T10]      process_backlog+0x101/0x620
[ 1321.658192][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1321.658192][   T10]      net_rx_action+0x495/0xbe0
[ 1321.658192][   T10]      __do_softirq+0x1b5/0x7f6
[ 1321.658192][   T10] 
[ 1321.659910][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1321.659910][   T10]      netdev_get_by_index+0x5e/0x80
[ 1321.659910][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1321.659910][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1321.659910][   T10]      ip6_route_add+0x1c/0x140
[ 1321.659910][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1321.659910][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1321.659910][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1321.659910][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1321.659910][   T10]      netlink_rcv_skb+0x130/0x360
[ 1321.659910][   T10]      netlink_unicast+0x449/0x710
[ 1321.659910][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1321.659910][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1321.659910][   T10]      ___sys_sendmsg+0xee/0x170
[ 1321.659910][   T10]      __sys_sendmsg+0xcd/0x170
[ 1321.659910][   T10]      do_syscall_64+0xc6/0x1e0
[ 1321.659910][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1321.659910][   T10] 
[ 1321.661985][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1321.661985][   T10]      netdev_get_by_index+0x5e/0x80
[ 1321.661985][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1321.661985][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1321.661985][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1321.661985][   T10]      ipv6_add_addr+0x411/0x2000
[ 1321.661985][   T10]      inet6_addr_add+0x30e/0xa40
[ 1321.661985][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1321.661985][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1321.661985][   T10]      netlink_rcv_skb+0x130/0x360
[ 1321.661985][   T10]      netlink_unicast+0x449/0x710
[ 1321.661985][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1321.661985][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1321.661985][   T10]      ___sys_sendmsg+0xee/0x170
[ 1321.661985][   T10]      __sys_sendmsg+0xcd/0x170
[ 1321.661985][   T10]      do_syscall_64+0xc6/0x1e0
[ 1321.661985][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1321.661985][   T10] 
[ 1321.664051][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1321.664051][   T10]      netdev_get_by_index+0x5e/0x80
[ 1321.664051][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1321.664051][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1321.664051][   T10]      ip6_route_add+0x1c/0x140
[ 1321.664051][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1321.664051][   T10]      addrconf_add_dev+0xe2/0x170
[ 1321.664051][   T10]      inet6_addr_add+0x12f/0xa40
[ 1321.664051][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1321.664051][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1321.664051][   T10]      netlink_rcv_skb+0x130/0x360
[ 1321.664051][   T10]      netlink_unicast+0x449/0x710
[ 1321.664051][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1321.664051][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1321.664051][   T10]      ___sys_sendmsg+0xee/0x170
[ 1321.664051][   T10]      __sys_sendmsg+0xcd/0x170
[ 1321.664051][   T10]      do_syscall_64+0xc6/0x1e0
[ 1321.664051][   T10] 
[ 1321.666108][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1321.666108][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1321.666108][   T10]      ipv6_find_idev+0x102/0x170
[ 1321.666108][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1321.666108][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1321.666108][   T10]      netlink_rcv_skb+0x130/0x360
[ 1321.666108][   T10]      netlink_unicast+0x449/0x710
[ 1321.666108][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1321.666108][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1321.666108][   T10]      ___sys_sendmsg+0xee/0x170
[ 1321.666108][   T10]      __sys_sendmsg+0xcd/0x170
[ 1321.666108][   T10]      do_syscall_64+0xc6/0x1e0
[ 1321.666108][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1321.666108][   T10] 
[ 1321.667672][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1321.667672][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1321.667672][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1321.667672][   T10]      ipv6_find_idev+0x102/0x170
[ 1321.667672][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1321.667672][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1321.667672][   T10]      netlink_rcv_skb+0x130/0x360
[ 1321.667672][   T10]      netlink_unicast+0x449/0x710
[ 1321.667672][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1321.667672][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1321.667672][   T10]      ___sys_sendmsg+0xee/0x170
[ 1321.667672][   T10]      __sys_sendmsg+0xcd/0x170
[ 1321.667672][   T10]      do_syscall_64+0xc6/0x1e0
[ 1321.667672][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1321.667672][   T10] 
[ 1321.669400][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1321.669643][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1321.669643][   T10]      dst_init+0x84/0x4a0
[ 1321.669643][   T10]      dst_alloc+0x97/0x150
[ 1321.669643][   T10]      ip6_dst_alloc+0x23/0x90
[ 1321.669643][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1321.669643][   T10]      ip6_pol_route+0x56f/0x840
[ 1321.669643][   T10]      fib6_rule_lookup+0x456/0x630
[ 1321.669643][   T10]      ip6_route_input+0x59c/0xa50
[ 1321.669643][   T10]      ipv6_rcv+0x397/0x810
[ 1321.669643][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1321.669643][   T10]      process_backlog+0x101/0x620
[ 1321.669643][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1321.669643][   T10]      net_rx_action+0x495/0xbe0
[ 1321.669643][   T10]      __do_softirq+0x1b5/0x7f6
[ 1321.669643][   T10] 
[ 1321.671301][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1321.671301][   T10]      netdev_get_by_index+0x5e/0x80
[ 1321.671301][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1321.671301][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1321.671301][   T10]      ip6_route_add+0x1c/0x140
[ 1321.671301][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1321.671301][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1321.671301][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1321.671301][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1321.671301][   T10]      netlink_rcv_skb+0x130/0x360
[ 1321.671301][   T10]      netlink_unicast+0x449/0x710
[ 1321.671301][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1321.671301][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1321.671301][   T10]      ___sys_sendmsg+0xee/0x170
[ 1321.671301][   T10]      __sys_sendmsg+0xcd/0x170
[ 1321.671301][   T10]      do_syscall_64+0xc6/0x1e0
[ 1321.671301][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1321.671301][   T10] 
[ 1321.673322][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1321.673322][   T10]      netdev_get_by_index+0x5e/0x80
[ 1321.673322][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1321.673322][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1321.673322][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1321.673322][   T10]      ipv6_add_addr+0x411/0x2000
[ 1321.673322][   T10]      inet6_addr_add+0x30e/0xa40
[ 1321.673322][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1321.673322][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1321.673322][   T10]      netlink_rcv_skb+0x130/0x360
[ 1321.673322][   T10]      netlink_unicast+0x449/0x710
[ 1321.673322][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1321.673322][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1321.673322][   T10]      ___sys_sendmsg+0xee/0x170
[ 1321.673322][   T10]      __sys_sendmsg+0xcd/0x170
[ 1321.673322][   T10]      do_syscall_64+0xc6/0x1e0
[ 1321.673322][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1321.673322][   T10] 
[ 1321.675349][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1321.675349][   T10]      netdev_get_by_index+0x5e/0x80
[ 1321.675349][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1321.675349][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1321.675349][   T10]      ip6_route_add+0x1c/0x140
[ 1321.675349][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1321.675349][   T10]      addrconf_add_dev+0xe2/0x170
[ 1321.675349][   T10]      inet6_addr_add+0x12f/0xa40
[ 1321.675349][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1321.675349][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1321.675349][   T10]      netlink_rcv_skb+0x130/0x360
[ 1321.675349][   T10]      netlink_unicast+0x449/0x710
[ 1321.675349][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1321.675349][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1321.675349][   T10]      ___sys_sendmsg+0xee/0x170
[ 1321.675349][   T10]      __sys_sendmsg+0xcd/0x170
[ 1321.675349][   T10]      do_syscall_64+0xc6/0x1e0
[ 1321.675349][   T10] 
[ 1321.677365][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1321.677365][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1321.677365][   T10]      ipv6_find_idev+0x102/0x170
[ 1321.677365][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1321.677365][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1321.677365][   T10]      netlink_rcv_skb+0x130/0x360
[ 1321.677365][   T10]      netlink_unicast+0x449/0x710
[ 1321.677365][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1321.677365][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1321.677365][   T10]      ___sys_sendmsg+0xee/0x170
[ 1321.677365][   T10]      __sys_sendmsg+0xcd/0x170
[ 1321.677365][   T10]      do_syscall_64+0xc6/0x1e0
[ 1321.677365][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1321.677365][   T10] 
[ 1321.678932][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1321.678932][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1321.678932][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1321.678932][   T10]      ipv6_find_idev+0x102/0x170
[ 1321.678932][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1321.678932][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1321.678932][   T10]      netlink_rcv_skb+0x130/0x360
[ 1321.678932][   T10]      netlink_unicast+0x449/0x710
[ 1321.678932][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1321.678932][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1321.678932][   T10]      ___sys_sendmsg+0xee/0x170
[ 1321.678932][   T10]      __sys_sendmsg+0xcd/0x170
[ 1321.678932][   T10]      do_syscall_64+0xc6/0x1e0
[ 1321.678932][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1321.678932][   T10] 
[ 1331.921753][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1331.922108][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1331.922108][   T10]      dst_init+0x84/0x4a0
[ 1331.922108][   T10]      dst_alloc+0x97/0x150
[ 1331.922108][   T10]      ip6_dst_alloc+0x23/0x90
[ 1331.922108][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1331.922108][   T10]      ip6_pol_route+0x56f/0x840
[ 1331.922108][   T10]      fib6_rule_lookup+0x456/0x630
[ 1331.922108][   T10]      ip6_route_input+0x59c/0xa50
[ 1331.922108][   T10]      ipv6_rcv+0x397/0x810
[ 1331.922108][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1331.922108][   T10]      process_backlog+0x101/0x620
[ 1331.922108][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1331.922108][   T10]      net_rx_action+0x495/0xbe0
[ 1331.922108][   T10]      __do_softirq+0x1b5/0x7f6
[ 1331.922108][   T10] 
[ 1331.923848][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1331.923848][   T10]      netdev_get_by_index+0x5e/0x80
[ 1331.923848][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1331.923848][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1331.923848][   T10]      ip6_route_add+0x1c/0x140
[ 1331.923848][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1331.923848][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1331.923848][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1331.923848][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1331.923848][   T10]      netlink_rcv_skb+0x130/0x360
[ 1331.923848][   T10]      netlink_unicast+0x449/0x710
[ 1331.923848][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1331.923848][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1331.923848][   T10]      ___sys_sendmsg+0xee/0x170
[ 1331.923848][   T10]      __sys_sendmsg+0xcd/0x170
[ 1331.923848][   T10]      do_syscall_64+0xc6/0x1e0
[ 1331.923848][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1331.923848][   T10] 
[ 1331.925929][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1331.925929][   T10]      netdev_get_by_index+0x5e/0x80
[ 1331.925929][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1331.925929][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1331.925929][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1331.925929][   T10]      ipv6_add_addr+0x411/0x2000
[ 1331.925929][   T10]      inet6_addr_add+0x30e/0xa40
[ 1331.925929][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1331.925929][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1331.925929][   T10]      netlink_rcv_skb+0x130/0x360
[ 1331.925929][   T10]      netlink_unicast+0x449/0x710
[ 1331.925929][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1331.925929][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1331.925929][   T10]      ___sys_sendmsg+0xee/0x170
[ 1331.925929][   T10]      __sys_sendmsg+0xcd/0x170
[ 1331.925929][   T10]      do_syscall_64+0xc6/0x1e0
[ 1331.925929][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1331.925929][   T10] 
[ 1331.927976][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1331.927976][   T10]      netdev_get_by_index+0x5e/0x80
[ 1331.927976][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1331.927976][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1331.927976][   T10]      ip6_route_add+0x1c/0x140
[ 1331.927976][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1331.927976][   T10]      addrconf_add_dev+0xe2/0x170
[ 1331.927976][   T10]      inet6_addr_add+0x12f/0xa40
[ 1331.927976][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1331.927976][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1331.927976][   T10]      netlink_rcv_skb+0x130/0x360
[ 1331.927976][   T10]      netlink_unicast+0x449/0x710
[ 1331.927976][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1331.927976][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1331.927976][   T10]      ___sys_sendmsg+0xee/0x170
[ 1331.927976][   T10]      __sys_sendmsg+0xcd/0x170
[ 1331.927976][   T10]      do_syscall_64+0xc6/0x1e0
[ 1331.927976][   T10] 
[ 1331.929979][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1331.929979][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1331.929979][   T10]      ipv6_find_idev+0x102/0x170
[ 1331.929979][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1331.929979][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1331.929979][   T10]      netlink_rcv_skb+0x130/0x360
[ 1331.929979][   T10]      netlink_unicast+0x449/0x710
[ 1331.929979][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1331.929979][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1331.929979][   T10]      ___sys_sendmsg+0xee/0x170
[ 1331.929979][   T10]      __sys_sendmsg+0xcd/0x170
[ 1331.929979][   T10]      do_syscall_64+0xc6/0x1e0
[ 1331.929979][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1331.929979][   T10] 
[ 1331.931548][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1331.931548][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1331.931548][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1331.931548][   T10]      ipv6_find_idev+0x102/0x170
[ 1331.931548][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1331.931548][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1331.931548][   T10]      netlink_rcv_skb+0x130/0x360
[ 1331.931548][   T10]      netlink_unicast+0x449/0x710
[ 1331.931548][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1331.931548][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1331.931548][   T10]      ___sys_sendmsg+0xee/0x170
[ 1331.931548][   T10]      __sys_sendmsg+0xcd/0x170
[ 1331.931548][   T10]      do_syscall_64+0xc6/0x1e0
[ 1331.931548][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1331.931548][   T10] 
[ 1331.933336][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1331.933590][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1331.933590][   T10]      dst_init+0x84/0x4a0
[ 1331.933590][   T10]      dst_alloc+0x97/0x150
[ 1331.933590][   T10]      ip6_dst_alloc+0x23/0x90
[ 1331.933590][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1331.933590][   T10]      ip6_pol_route+0x56f/0x840
[ 1331.933590][   T10]      fib6_rule_lookup+0x456/0x630
[ 1331.933590][   T10]      ip6_route_input+0x59c/0xa50
[ 1331.933590][   T10]      ipv6_rcv+0x397/0x810
[ 1331.933590][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1331.933590][   T10]      process_backlog+0x101/0x620
[ 1331.933590][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1331.933590][   T10]      net_rx_action+0x495/0xbe0
[ 1331.933590][   T10]      __do_softirq+0x1b5/0x7f6
[ 1331.933590][   T10] 
[ 1331.935287][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1331.935287][   T10]      netdev_get_by_index+0x5e/0x80
[ 1331.935287][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1331.935287][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1331.935287][   T10]      ip6_route_add+0x1c/0x140
[ 1331.935287][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1331.935287][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1331.935287][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1331.935287][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1331.935287][   T10]      netlink_rcv_skb+0x130/0x360
[ 1331.935287][   T10]      netlink_unicast+0x449/0x710
[ 1331.935287][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1331.935287][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1331.935287][   T10]      ___sys_sendmsg+0xee/0x170
[ 1331.935287][   T10]      __sys_sendmsg+0xcd/0x170
[ 1331.935287][   T10]      do_syscall_64+0xc6/0x1e0
[ 1331.935287][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1331.935287][   T10] 
[ 1331.937360][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1331.937360][   T10]      netdev_get_by_index+0x5e/0x80
[ 1331.937360][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1331.937360][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1331.937360][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1331.937360][   T10]      ipv6_add_addr+0x411/0x2000
[ 1331.937360][   T10]      inet6_addr_add+0x30e/0xa40
[ 1331.937360][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1331.937360][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1331.937360][   T10]      netlink_rcv_skb+0x130/0x360
[ 1331.937360][   T10]      netlink_unicast+0x449/0x710
[ 1331.937360][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1331.937360][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1331.937360][   T10]      ___sys_sendmsg+0xee/0x170
[ 1331.937360][   T10]      __sys_sendmsg+0xcd/0x170
[ 1331.937360][   T10]      do_syscall_64+0xc6/0x1e0
[ 1331.937360][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1331.937360][   T10] 
[ 1331.939450][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1331.939450][   T10]      netdev_get_by_index+0x5e/0x80
[ 1331.939450][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1331.939450][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1331.939450][   T10]      ip6_route_add+0x1c/0x140
[ 1331.939450][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1331.939450][   T10]      addrconf_add_dev+0xe2/0x170
[ 1331.939450][   T10]      inet6_addr_add+0x12f/0xa40
[ 1331.939450][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1331.939450][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1331.939450][   T10]      netlink_rcv_skb+0x130/0x360
[ 1331.939450][   T10]      netlink_unicast+0x449/0x710
[ 1331.939450][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1331.939450][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1331.939450][   T10]      ___sys_sendmsg+0xee/0x170
[ 1331.939450][   T10]      __sys_sendmsg+0xcd/0x170
[ 1331.939450][   T10]      do_syscall_64+0xc6/0x1e0
[ 1331.939450][   T10] 
[ 1331.941475][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1331.941475][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1331.941475][   T10]      ipv6_find_idev+0x102/0x170
[ 1331.941475][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1331.941475][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1331.941475][   T10]      netlink_rcv_skb+0x130/0x360
[ 1331.941475][   T10]      netlink_unicast+0x449/0x710
[ 1331.941475][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1331.941475][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1331.941475][   T10]      ___sys_sendmsg+0xee/0x170
[ 1331.941475][   T10]      __sys_sendmsg+0xcd/0x170
[ 1331.941475][   T10]      do_syscall_64+0xc6/0x1e0
[ 1331.941475][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1331.941475][   T10] 
[ 1331.943050][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1331.943050][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1331.943050][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1331.943050][   T10]      ipv6_find_idev+0x102/0x170
[ 1331.943050][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1331.943050][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1331.943050][   T10]      netlink_rcv_skb+0x130/0x360
[ 1331.943050][   T10]      netlink_unicast+0x449/0x710
[ 1331.943050][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1331.943050][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1331.943050][   T10]      ___sys_sendmsg+0xee/0x170
[ 1331.943050][   T10]      __sys_sendmsg+0xcd/0x170
[ 1331.943050][   T10]      do_syscall_64+0xc6/0x1e0
[ 1331.943050][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1331.943050][   T10] 
[ 1342.097780][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1342.098138][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1342.098138][   T10]      dst_init+0x84/0x4a0
[ 1342.098138][   T10]      dst_alloc+0x97/0x150
[ 1342.098138][   T10]      ip6_dst_alloc+0x23/0x90
[ 1342.098138][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1342.098138][   T10]      ip6_pol_route+0x56f/0x840
[ 1342.098138][   T10]      fib6_rule_lookup+0x456/0x630
[ 1342.098138][   T10]      ip6_route_input+0x59c/0xa50
[ 1342.098138][   T10]      ipv6_rcv+0x397/0x810
[ 1342.098138][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1342.098138][   T10]      process_backlog+0x101/0x620
[ 1342.098138][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1342.098138][   T10]      net_rx_action+0x495/0xbe0
[ 1342.098138][   T10]      __do_softirq+0x1b5/0x7f6
[ 1342.098138][   T10] 
[ 1342.099854][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1342.099854][   T10]      netdev_get_by_index+0x5e/0x80
[ 1342.099854][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1342.099854][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1342.099854][   T10]      ip6_route_add+0x1c/0x140
[ 1342.099854][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1342.099854][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1342.099854][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1342.099854][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1342.099854][   T10]      netlink_rcv_skb+0x130/0x360
[ 1342.099854][   T10]      netlink_unicast+0x449/0x710
[ 1342.099854][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1342.099854][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1342.099854][   T10]      ___sys_sendmsg+0xee/0x170
[ 1342.099854][   T10]      __sys_sendmsg+0xcd/0x170
[ 1342.099854][   T10]      do_syscall_64+0xc6/0x1e0
[ 1342.099854][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1342.099854][   T10] 
[ 1342.101934][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1342.101934][   T10]      netdev_get_by_index+0x5e/0x80
[ 1342.101934][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1342.101934][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1342.101934][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1342.101934][   T10]      ipv6_add_addr+0x411/0x2000
[ 1342.101934][   T10]      inet6_addr_add+0x30e/0xa40
[ 1342.101934][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1342.101934][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1342.101934][   T10]      netlink_rcv_skb+0x130/0x360
[ 1342.101934][   T10]      netlink_unicast+0x449/0x710
[ 1342.101934][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1342.101934][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1342.101934][   T10]      ___sys_sendmsg+0xee/0x170
[ 1342.101934][   T10]      __sys_sendmsg+0xcd/0x170
[ 1342.101934][   T10]      do_syscall_64+0xc6/0x1e0
[ 1342.101934][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1342.101934][   T10] 
[ 1342.104079][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1342.104079][   T10]      netdev_get_by_index+0x5e/0x80
[ 1342.104079][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1342.104079][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1342.104079][   T10]      ip6_route_add+0x1c/0x140
[ 1342.104079][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1342.104079][   T10]      addrconf_add_dev+0xe2/0x170
[ 1342.104079][   T10]      inet6_addr_add+0x12f/0xa40
[ 1342.104079][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1342.104079][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1342.104079][   T10]      netlink_rcv_skb+0x130/0x360
[ 1342.104079][   T10]      netlink_unicast+0x449/0x710
[ 1342.104079][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1342.104079][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1342.104079][   T10]      ___sys_sendmsg+0xee/0x170
[ 1342.104079][   T10]      __sys_sendmsg+0xcd/0x170
[ 1342.104079][   T10]      do_syscall_64+0xc6/0x1e0
[ 1342.104079][   T10] 
[ 1342.106206][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1342.106206][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1342.106206][   T10]      ipv6_find_idev+0x102/0x170
[ 1342.106206][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1342.106206][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1342.106206][   T10]      netlink_rcv_skb+0x130/0x360
[ 1342.106206][   T10]      netlink_unicast+0x449/0x710
[ 1342.106206][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1342.106206][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1342.106206][   T10]      ___sys_sendmsg+0xee/0x170
[ 1342.106206][   T10]      __sys_sendmsg+0xcd/0x170
[ 1342.106206][   T10]      do_syscall_64+0xc6/0x1e0
[ 1342.106206][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1342.106206][   T10] 
[ 1342.107799][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1342.107799][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1342.107799][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1342.107799][   T10]      ipv6_find_idev+0x102/0x170
[ 1342.107799][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1342.107799][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1342.107799][   T10]      netlink_rcv_skb+0x130/0x360
[ 1342.107799][   T10]      netlink_unicast+0x449/0x710
[ 1342.107799][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1342.107799][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1342.107799][   T10]      ___sys_sendmsg+0xee/0x170
[ 1342.107799][   T10]      __sys_sendmsg+0xcd/0x170
[ 1342.107799][   T10]      do_syscall_64+0xc6/0x1e0
[ 1342.107799][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1342.107799][   T10] 
[ 1342.109534][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1342.109792][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1342.109792][   T10]      dst_init+0x84/0x4a0
[ 1342.109792][   T10]      dst_alloc+0x97/0x150
[ 1342.109792][   T10]      ip6_dst_alloc+0x23/0x90
[ 1342.109792][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1342.109792][   T10]      ip6_pol_route+0x56f/0x840
[ 1342.109792][   T10]      fib6_rule_lookup+0x456/0x630
[ 1342.109792][   T10]      ip6_route_input+0x59c/0xa50
[ 1342.109792][   T10]      ipv6_rcv+0x397/0x810
[ 1342.109792][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1342.109792][   T10]      process_backlog+0x101/0x620
[ 1342.109792][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1342.109792][   T10]      net_rx_action+0x495/0xbe0
[ 1342.109792][   T10]      __do_softirq+0x1b5/0x7f6
[ 1342.109792][   T10] 
[ 1342.111491][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1342.111491][   T10]      netdev_get_by_index+0x5e/0x80
[ 1342.111491][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1342.111491][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1342.111491][   T10]      ip6_route_add+0x1c/0x140
[ 1342.111491][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1342.111491][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1342.111491][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1342.111491][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1342.111491][   T10]      netlink_rcv_skb+0x130/0x360
[ 1342.111491][   T10]      netlink_unicast+0x449/0x710
[ 1342.111491][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1342.111491][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1342.111491][   T10]      ___sys_sendmsg+0xee/0x170
[ 1342.111491][   T10]      __sys_sendmsg+0xcd/0x170
[ 1342.111491][   T10]      do_syscall_64+0xc6/0x1e0
[ 1342.111491][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1342.111491][   T10] 
[ 1342.113564][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1342.113564][   T10]      netdev_get_by_index+0x5e/0x80
[ 1342.113564][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1342.113564][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1342.113564][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1342.113564][   T10]      ipv6_add_addr+0x411/0x2000
[ 1342.113564][   T10]      inet6_addr_add+0x30e/0xa40
[ 1342.113564][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1342.113564][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1342.113564][   T10]      netlink_rcv_skb+0x130/0x360
[ 1342.113564][   T10]      netlink_unicast+0x449/0x710
[ 1342.113564][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1342.113564][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1342.113564][   T10]      ___sys_sendmsg+0xee/0x170
[ 1342.113564][   T10]      __sys_sendmsg+0xcd/0x170
[ 1342.113564][   T10]      do_syscall_64+0xc6/0x1e0
[ 1342.113564][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1342.113564][   T10] 
[ 1342.115642][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1342.115642][   T10]      netdev_get_by_index+0x5e/0x80
[ 1342.115642][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1342.115642][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1342.115642][   T10]      ip6_route_add+0x1c/0x140
[ 1342.115642][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1342.115642][   T10]      addrconf_add_dev+0xe2/0x170
[ 1342.115642][   T10]      inet6_addr_add+0x12f/0xa40
[ 1342.115642][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1342.115642][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1342.115642][   T10]      netlink_rcv_skb+0x130/0x360
[ 1342.115642][   T10]      netlink_unicast+0x449/0x710
[ 1342.115642][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1342.115642][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1342.115642][   T10]      ___sys_sendmsg+0xee/0x170
[ 1342.115642][   T10]      __sys_sendmsg+0xcd/0x170
[ 1342.115642][   T10]      do_syscall_64+0xc6/0x1e0
[ 1342.115642][   T10] 
[ 1342.117658][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1342.117658][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1342.117658][   T10]      ipv6_find_idev+0x102/0x170
[ 1342.117658][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1342.117658][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1342.117658][   T10]      netlink_rcv_skb+0x130/0x360
[ 1342.117658][   T10]      netlink_unicast+0x449/0x710
[ 1342.117658][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1342.117658][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1342.117658][   T10]      ___sys_sendmsg+0xee/0x170
[ 1342.117658][   T10]      __sys_sendmsg+0xcd/0x170
[ 1342.117658][   T10]      do_syscall_64+0xc6/0x1e0
[ 1342.117658][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1342.117658][   T10] 
[ 1342.119235][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1342.119235][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1342.119235][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1342.119235][   T10]      ipv6_find_idev+0x102/0x170
[ 1342.119235][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1342.119235][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1342.119235][   T10]      netlink_rcv_skb+0x130/0x360
[ 1342.119235][   T10]      netlink_unicast+0x449/0x710
[ 1342.119235][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1342.119235][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1342.119235][   T10]      ___sys_sendmsg+0xee/0x170
[ 1342.119235][   T10]      __sys_sendmsg+0xcd/0x170
[ 1342.119235][   T10]      do_syscall_64+0xc6/0x1e0
[ 1342.119235][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1342.119235][   T10] 
[ 1352.361826][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1352.362252][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1352.362252][   T10]      dst_init+0x84/0x4a0
[ 1352.362252][   T10]      dst_alloc+0x97/0x150
[ 1352.362252][   T10]      ip6_dst_alloc+0x23/0x90
[ 1352.362252][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1352.362252][   T10]      ip6_pol_route+0x56f/0x840
[ 1352.362252][   T10]      fib6_rule_lookup+0x456/0x630
[ 1352.362252][   T10]      ip6_route_input+0x59c/0xa50
[ 1352.362252][   T10]      ipv6_rcv+0x397/0x810
[ 1352.362252][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1352.362252][   T10]      process_backlog+0x101/0x620
[ 1352.362252][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1352.362252][   T10]      net_rx_action+0x495/0xbe0
[ 1352.362252][   T10]      __do_softirq+0x1b5/0x7f6
[ 1352.362252][   T10] 
[ 1352.364079][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1352.364079][   T10]      netdev_get_by_index+0x5e/0x80
[ 1352.364079][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1352.364079][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1352.364079][   T10]      ip6_route_add+0x1c/0x140
[ 1352.364079][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1352.364079][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1352.364079][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1352.364079][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1352.364079][   T10]      netlink_rcv_skb+0x130/0x360
[ 1352.364079][   T10]      netlink_unicast+0x449/0x710
[ 1352.364079][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1352.364079][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1352.364079][   T10]      ___sys_sendmsg+0xee/0x170
[ 1352.364079][   T10]      __sys_sendmsg+0xcd/0x170
[ 1352.364079][   T10]      do_syscall_64+0xc6/0x1e0
[ 1352.364079][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1352.364079][   T10] 
[ 1352.366352][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1352.366352][   T10]      netdev_get_by_index+0x5e/0x80
[ 1352.366352][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1352.366352][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1352.366352][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1352.366352][   T10]      ipv6_add_addr+0x411/0x2000
[ 1352.366352][   T10]      inet6_addr_add+0x30e/0xa40
[ 1352.366352][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1352.366352][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1352.366352][   T10]      netlink_rcv_skb+0x130/0x360
[ 1352.366352][   T10]      netlink_unicast+0x449/0x710
[ 1352.366352][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1352.366352][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1352.366352][   T10]      ___sys_sendmsg+0xee/0x170
[ 1352.366352][   T10]      __sys_sendmsg+0xcd/0x170
[ 1352.366352][   T10]      do_syscall_64+0xc6/0x1e0
[ 1352.366352][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1352.366352][   T10] 
[ 1352.368382][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1352.368382][   T10]      netdev_get_by_index+0x5e/0x80
[ 1352.368382][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1352.368382][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1352.368382][   T10]      ip6_route_add+0x1c/0x140
[ 1352.368382][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1352.368382][   T10]      addrconf_add_dev+0xe2/0x170
[ 1352.368382][   T10]      inet6_addr_add+0x12f/0xa40
[ 1352.368382][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1352.368382][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1352.368382][   T10]      netlink_rcv_skb+0x130/0x360
[ 1352.368382][   T10]      netlink_unicast+0x449/0x710
[ 1352.368382][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1352.368382][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1352.368382][   T10]      ___sys_sendmsg+0xee/0x170
[ 1352.368382][   T10]      __sys_sendmsg+0xcd/0x170
[ 1352.368382][   T10]      do_syscall_64+0xc6/0x1e0
[ 1352.368382][   T10] 
[ 1352.370383][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1352.370383][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1352.370383][   T10]      ipv6_find_idev+0x102/0x170
[ 1352.370383][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1352.370383][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1352.370383][   T10]      netlink_rcv_skb+0x130/0x360
[ 1352.370383][   T10]      netlink_unicast+0x449/0x710
[ 1352.370383][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1352.370383][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1352.370383][   T10]      ___sys_sendmsg+0xee/0x170
[ 1352.370383][   T10]      __sys_sendmsg+0xcd/0x170
[ 1352.370383][   T10]      do_syscall_64+0xc6/0x1e0
[ 1352.370383][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1352.370383][   T10] 
[ 1352.371947][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1352.371947][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1352.371947][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1352.371947][   T10]      ipv6_find_idev+0x102/0x170
[ 1352.371947][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1352.371947][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1352.371947][   T10]      netlink_rcv_skb+0x130/0x360
[ 1352.371947][   T10]      netlink_unicast+0x449/0x710
[ 1352.371947][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1352.371947][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1352.371947][   T10]      ___sys_sendmsg+0xee/0x170
[ 1352.371947][   T10]      __sys_sendmsg+0xcd/0x170
[ 1352.371947][   T10]      do_syscall_64+0xc6/0x1e0
[ 1352.371947][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1352.371947][   T10] 
[ 1352.373718][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1352.374063][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1352.374063][   T10]      dst_init+0x84/0x4a0
[ 1352.374063][   T10]      dst_alloc+0x97/0x150
[ 1352.374063][   T10]      ip6_dst_alloc+0x23/0x90
[ 1352.374063][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1352.374063][   T10]      ip6_pol_route+0x56f/0x840
[ 1352.374063][   T10]      fib6_rule_lookup+0x456/0x630
[ 1352.374063][   T10]      ip6_route_input+0x59c/0xa50
[ 1352.374063][   T10]      ipv6_rcv+0x397/0x810
[ 1352.374063][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1352.374063][   T10]      process_backlog+0x101/0x620
[ 1352.374063][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1352.374063][   T10]      net_rx_action+0x495/0xbe0
[ 1352.374063][   T10]      __do_softirq+0x1b5/0x7f6
[ 1352.374063][   T10] 
[ 1352.375735][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1352.375735][   T10]      netdev_get_by_index+0x5e/0x80
[ 1352.375735][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1352.375735][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1352.375735][   T10]      ip6_route_add+0x1c/0x140
[ 1352.375735][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1352.375735][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1352.375735][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1352.375735][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1352.375735][   T10]      netlink_rcv_skb+0x130/0x360
[ 1352.375735][   T10]      netlink_unicast+0x449/0x710
[ 1352.375735][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1352.375735][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1352.375735][   T10]      ___sys_sendmsg+0xee/0x170
[ 1352.375735][   T10]      __sys_sendmsg+0xcd/0x170
[ 1352.375735][   T10]      do_syscall_64+0xc6/0x1e0
[ 1352.375735][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1352.375735][   T10] 
[ 1352.377768][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1352.377768][   T10]      netdev_get_by_index+0x5e/0x80
[ 1352.377768][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1352.377768][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1352.377768][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1352.377768][   T10]      ipv6_add_addr+0x411/0x2000
[ 1352.377768][   T10]      inet6_addr_add+0x30e/0xa40
[ 1352.377768][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1352.377768][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1352.377768][   T10]      netlink_rcv_skb+0x130/0x360
[ 1352.377768][   T10]      netlink_unicast+0x449/0x710
[ 1352.377768][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1352.377768][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1352.377768][   T10]      ___sys_sendmsg+0xee/0x170
[ 1352.377768][   T10]      __sys_sendmsg+0xcd/0x170
[ 1352.377768][   T10]      do_syscall_64+0xc6/0x1e0
[ 1352.377768][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1352.377768][   T10] 
[ 1352.379787][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1352.379787][   T10]      netdev_get_by_index+0x5e/0x80
[ 1352.379787][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1352.379787][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1352.379787][   T10]      ip6_route_add+0x1c/0x140
[ 1352.379787][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1352.379787][   T10]      addrconf_add_dev+0xe2/0x170
[ 1352.379787][   T10]      inet6_addr_add+0x12f/0xa40
[ 1352.379787][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1352.379787][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1352.379787][   T10]      netlink_rcv_skb+0x130/0x360
[ 1352.379787][   T10]      netlink_unicast+0x449/0x710
[ 1352.379787][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1352.379787][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1352.379787][   T10]      ___sys_sendmsg+0xee/0x170
[ 1352.379787][   T10]      __sys_sendmsg+0xcd/0x170
[ 1352.379787][   T10]      do_syscall_64+0xc6/0x1e0
[ 1352.379787][   T10] 
[ 1352.382461][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1352.382461][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1352.382461][   T10]      ipv6_find_idev+0x102/0x170
[ 1352.382461][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1352.382461][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1352.382461][   T10]      netlink_rcv_skb+0x130/0x360
[ 1352.382461][   T10]      netlink_unicast+0x449/0x710
[ 1352.382461][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1352.382461][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1352.382461][   T10]      ___sys_sendmsg+0xee/0x170
[ 1352.382461][   T10]      __sys_sendmsg+0xcd/0x170
[ 1352.382461][   T10]      do_syscall_64+0xc6/0x1e0
[ 1352.382461][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1352.382461][   T10] 
[ 1352.384018][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1352.384018][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1352.384018][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1352.384018][   T10]      ipv6_find_idev+0x102/0x170
[ 1352.384018][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1352.384018][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1352.384018][   T10]      netlink_rcv_skb+0x130/0x360
[ 1352.384018][   T10]      netlink_unicast+0x449/0x710
[ 1352.384018][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1352.384018][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1352.384018][   T10]      ___sys_sendmsg+0xee/0x170
[ 1352.384018][   T10]      __sys_sendmsg+0xcd/0x170
[ 1352.384018][   T10]      do_syscall_64+0xc6/0x1e0
[ 1352.384018][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1352.384018][   T10] 
[ 1353.001890][   T42] INFO: task modprobe:376 blocked for more than 1228 seconds.
[ 1353.002240][   T42]       Not tainted 6.8.0-virtme #1
[ 1353.002391][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1353.002626][   T42] task:modprobe        state:D stack:25648 pid:376   tgid:376   ppid:39     flags:0x00004002
[ 1353.002963][   T42] Call Trace:
[ 1353.003076][   T42]  <TASK>
[ 1353.003159][   T42]  __schedule+0x705/0x1ac0
[ 1353.003321][   T42]  ? __pfx___schedule+0x10/0x10
[ 1353.003464][   T42]  ? schedule+0x1a5/0x210
[ 1353.003577][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1353.003741][   T42]  ? mark_lock+0x38/0x3e0
[ 1353.003854][   T42]  ? do_raw_spin_lock+0x131/0x270
[ 1353.004000][   T42]  ? schedule+0x1a5/0x210
[ 1353.004117][   T42]  schedule+0xdf/0x210
[ 1353.004231][   T42]  schedule_preempt_disabled+0x15/0x30
[ 1353.004370][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[ 1353.004516][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 1353.004706][   T42]  ? kasan_save_stack+0x34/0x50
[ 1353.004849][   T42]  ? kasan_save_stack+0x24/0x50
[ 1353.004994][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1353.005146][   T42]  ? lock_acquire+0x1c1/0x220
[ 1353.005287][   T42]  ? register_pernet_subsys+0x1a/0x50
[ 1353.005440][   T42]  down_write+0x1c9/0x200
[ 1353.005550][   T42]  ? __pfx_down_write+0x10/0x10
[ 1353.005701][   T42]  ? __pfx___lock_release+0x10/0x10
[ 1353.005866][   T42]  ? __pfx_nf_defrag_init+0x10/0x10 [nf_defrag_ipv4]
[ 1353.006051][   T42]  register_pernet_subsys+0x1a/0x50
[ 1353.006205][   T42]  nf_defrag_init+0x19/0xff0 [nf_defrag_ipv4]
[ 1353.006386][   T42]  do_one_initcall+0xc8/0x3f0
[ 1353.006516][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[ 1353.006649][   T42]  ? __create_object+0x5e/0xb0
[ 1353.006813][   T42]  ? kasan_unpoison+0x27/0x60
[ 1353.006947][   T42]  do_init_module+0x233/0x740
[ 1353.007090][   T42]  load_module+0x16b5/0x2350
[ 1353.007232][   T42]  ? __pfx_load_module+0x10/0x10
[ 1353.007362][   T42]  ? kernel_read_file+0x3d2/0x520
[ 1353.007495][   T42]  ? kernel_read_file+0x300/0x520
[ 1353.007625][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[ 1353.007772][   T42]  ? init_module_from_file+0xd2/0x130
[ 1353.007901][   T42]  init_module_from_file+0xd2/0x130
[ 1353.008028][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[ 1353.008183][   T42]  ? __lock_release+0x103/0x460
[ 1353.008312][   T42]  ? idempotent_init_module+0x32a/0x620
[ 1353.008452][   T42]  ? idempotent_init_module+0x32a/0x620
[ 1353.008580][   T42]  ? do_raw_spin_unlock+0x58/0x220
[ 1353.008723][   T42]  idempotent_init_module+0x342/0x620
[ 1353.008852][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[ 1353.009030][   T42]  __x64_sys_finit_module+0xbe/0x130
[ 1353.009180][   T42]  do_syscall_64+0xc6/0x1e0
[ 1353.009313][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1353.009485][   T42] RIP: 0033:0x7f5fd44b2e5d
[ 1353.009620][   T42] RSP: 002b:00007ffcc85e8928 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 1353.009823][   T42] RAX: ffffffffffffffda RBX: 000055d19cb2e8d0 RCX: 00007f5fd44b2e5d
[ 1353.010010][   T42] RDX: 0000000000000000 RSI: 000055d18f6a6a2a RDI: 0000000000000000
[ 1353.010200][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 000055d19cb2dc10
[ 1353.010397][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055d18f6a6a2a
[ 1353.010584][   T42] R13: 000055d19cb2e880 R14: 000055d19cb2f710 R15: 0000000000000000
[ 1353.010803][   T42]  </TASK>
[ 1353.010901][   T42] Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
[ 1353.011108][   T42] 
[ 1353.011108][   T42] Showing all locks held in the system:
[ 1353.011293][   T42] 3 locks held by kworker/u16:0/10:
[ 1353.011419][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[ 1353.011687][   T42]  #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[ 1353.011909][   T42]  #2: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[ 1353.012138][   T42] 2 locks held by kworker/u20:0/39:
[ 1353.012262][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[ 1353.012514][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[ 1353.012806][   T42] 1 lock held by khungtaskd/42:
[ 1353.012928][   T42]  #0: ffffffff9b5591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[ 1353.013156][   T42] 1 lock held by modprobe/376:
[ 1353.013276][   T42]  #0: ffffffff9bd6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[ 1353.013538][   T42] 
[ 1353.013603][   T42] =============================================
[ 1353.013603][   T42] 
[ 1362.425774][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1362.426235][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1362.426235][   T10]      dst_init+0x84/0x4a0
[ 1362.426235][   T10]      dst_alloc+0x97/0x150
[ 1362.426235][   T10]      ip6_dst_alloc+0x23/0x90
[ 1362.426235][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1362.426235][   T10]      ip6_pol_route+0x56f/0x840
[ 1362.426235][   T10]      fib6_rule_lookup+0x456/0x630
[ 1362.426235][   T10]      ip6_route_input+0x59c/0xa50
[ 1362.426235][   T10]      ipv6_rcv+0x397/0x810
[ 1362.426235][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1362.426235][   T10]      process_backlog+0x101/0x620
[ 1362.426235][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1362.426235][   T10]      net_rx_action+0x495/0xbe0
[ 1362.426235][   T10]      __do_softirq+0x1b5/0x7f6
[ 1362.426235][   T10] 
[ 1362.427934][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1362.427934][   T10]      netdev_get_by_index+0x5e/0x80
[ 1362.427934][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1362.427934][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1362.427934][   T10]      ip6_route_add+0x1c/0x140
[ 1362.427934][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1362.427934][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1362.427934][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1362.427934][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1362.427934][   T10]      netlink_rcv_skb+0x130/0x360
[ 1362.427934][   T10]      netlink_unicast+0x449/0x710
[ 1362.427934][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1362.427934][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1362.427934][   T10]      ___sys_sendmsg+0xee/0x170
[ 1362.427934][   T10]      __sys_sendmsg+0xcd/0x170
[ 1362.427934][   T10]      do_syscall_64+0xc6/0x1e0
[ 1362.427934][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1362.427934][   T10] 
[ 1362.429954][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1362.429954][   T10]      netdev_get_by_index+0x5e/0x80
[ 1362.429954][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1362.429954][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1362.429954][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1362.429954][   T10]      ipv6_add_addr+0x411/0x2000
[ 1362.429954][   T10]      inet6_addr_add+0x30e/0xa40
[ 1362.429954][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1362.429954][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1362.429954][   T10]      netlink_rcv_skb+0x130/0x360
[ 1362.429954][   T10]      netlink_unicast+0x449/0x710
[ 1362.429954][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1362.429954][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1362.429954][   T10]      ___sys_sendmsg+0xee/0x170
[ 1362.429954][   T10]      __sys_sendmsg+0xcd/0x170
[ 1362.429954][   T10]      do_syscall_64+0xc6/0x1e0
[ 1362.429954][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1362.429954][   T10] 
[ 1362.431966][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1362.431966][   T10]      netdev_get_by_index+0x5e/0x80
[ 1362.431966][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1362.431966][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1362.431966][   T10]      ip6_route_add+0x1c/0x140
[ 1362.431966][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1362.431966][   T10]      addrconf_add_dev+0xe2/0x170
[ 1362.431966][   T10]      inet6_addr_add+0x12f/0xa40
[ 1362.431966][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1362.431966][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1362.431966][   T10]      netlink_rcv_skb+0x130/0x360
[ 1362.431966][   T10]      netlink_unicast+0x449/0x710
[ 1362.431966][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1362.431966][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1362.431966][   T10]      ___sys_sendmsg+0xee/0x170
[ 1362.431966][   T10]      __sys_sendmsg+0xcd/0x170
[ 1362.431966][   T10]      do_syscall_64+0xc6/0x1e0
[ 1362.431966][   T10] 
[ 1362.433935][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1362.433935][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1362.433935][   T10]      ipv6_find_idev+0x102/0x170
[ 1362.433935][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1362.433935][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1362.433935][   T10]      netlink_rcv_skb+0x130/0x360
[ 1362.433935][   T10]      netlink_unicast+0x449/0x710
[ 1362.433935][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1362.433935][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1362.433935][   T10]      ___sys_sendmsg+0xee/0x170
[ 1362.433935][   T10]      __sys_sendmsg+0xcd/0x170
[ 1362.433935][   T10]      do_syscall_64+0xc6/0x1e0
[ 1362.433935][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1362.433935][   T10] 
[ 1362.435479][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1362.435479][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1362.435479][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1362.435479][   T10]      ipv6_find_idev+0x102/0x170
[ 1362.435479][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1362.435479][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1362.435479][   T10]      netlink_rcv_skb+0x130/0x360
[ 1362.435479][   T10]      netlink_unicast+0x449/0x710
[ 1362.435479][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1362.435479][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1362.435479][   T10]      ___sys_sendmsg+0xee/0x170
[ 1362.435479][   T10]      __sys_sendmsg+0xcd/0x170
[ 1362.435479][   T10]      do_syscall_64+0xc6/0x1e0
[ 1362.435479][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1362.435479][   T10] 
[ 1362.437205][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1362.437452][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1362.437452][   T10]      dst_init+0x84/0x4a0
[ 1362.437452][   T10]      dst_alloc+0x97/0x150
[ 1362.437452][   T10]      ip6_dst_alloc+0x23/0x90
[ 1362.437452][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1362.437452][   T10]      ip6_pol_route+0x56f/0x840
[ 1362.437452][   T10]      fib6_rule_lookup+0x456/0x630
[ 1362.437452][   T10]      ip6_route_input+0x59c/0xa50
[ 1362.437452][   T10]      ipv6_rcv+0x397/0x810
[ 1362.437452][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1362.437452][   T10]      process_backlog+0x101/0x620
[ 1362.437452][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1362.437452][   T10]      net_rx_action+0x495/0xbe0
[ 1362.437452][   T10]      __do_softirq+0x1b5/0x7f6
[ 1362.437452][   T10] 
[ 1362.439087][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1362.439087][   T10]      netdev_get_by_index+0x5e/0x80
[ 1362.439087][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1362.439087][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1362.439087][   T10]      ip6_route_add+0x1c/0x140
[ 1362.439087][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1362.439087][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1362.439087][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1362.439087][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1362.439087][   T10]      netlink_rcv_skb+0x130/0x360
[ 1362.439087][   T10]      netlink_unicast+0x449/0x710
[ 1362.439087][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1362.439087][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1362.439087][   T10]      ___sys_sendmsg+0xee/0x170
[ 1362.439087][   T10]      __sys_sendmsg+0xcd/0x170
[ 1362.439087][   T10]      do_syscall_64+0xc6/0x1e0
[ 1362.439087][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1362.439087][   T10] 
[ 1362.441085][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1362.441085][   T10]      netdev_get_by_index+0x5e/0x80
[ 1362.441085][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1362.441085][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1362.441085][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1362.441085][   T10]      ipv6_add_addr+0x411/0x2000
[ 1362.441085][   T10]      inet6_addr_add+0x30e/0xa40
[ 1362.441085][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1362.441085][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1362.441085][   T10]      netlink_rcv_skb+0x130/0x360
[ 1362.441085][   T10]      netlink_unicast+0x449/0x710
[ 1362.441085][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1362.441085][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1362.441085][   T10]      ___sys_sendmsg+0xee/0x170
[ 1362.441085][   T10]      __sys_sendmsg+0xcd/0x170
[ 1362.441085][   T10]      do_syscall_64+0xc6/0x1e0
[ 1362.441085][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1362.441085][   T10] 
[ 1362.443087][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1362.443087][   T10]      netdev_get_by_index+0x5e/0x80
[ 1362.443087][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1362.443087][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1362.443087][   T10]      ip6_route_add+0x1c/0x140
[ 1362.443087][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1362.443087][   T10]      addrconf_add_dev+0xe2/0x170
[ 1362.443087][   T10]      inet6_addr_add+0x12f/0xa40
[ 1362.443087][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1362.443087][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1362.443087][   T10]      netlink_rcv_skb+0x130/0x360
[ 1362.443087][   T10]      netlink_unicast+0x449/0x710
[ 1362.443087][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1362.443087][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1362.443087][   T10]      ___sys_sendmsg+0xee/0x170
[ 1362.443087][   T10]      __sys_sendmsg+0xcd/0x170
[ 1362.443087][   T10]      do_syscall_64+0xc6/0x1e0
[ 1362.443087][   T10] 
[ 1362.445052][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1362.445052][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1362.445052][   T10]      ipv6_find_idev+0x102/0x170
[ 1362.445052][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1362.445052][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1362.445052][   T10]      netlink_rcv_skb+0x130/0x360
[ 1362.445052][   T10]      netlink_unicast+0x449/0x710
[ 1362.445052][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1362.445052][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1362.445052][   T10]      ___sys_sendmsg+0xee/0x170
[ 1362.445052][   T10]      __sys_sendmsg+0xcd/0x170
[ 1362.445052][   T10]      do_syscall_64+0xc6/0x1e0
[ 1362.445052][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1362.445052][   T10] 
[ 1362.446600][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1362.446600][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1362.446600][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1362.446600][   T10]      ipv6_find_idev+0x102/0x170
[ 1362.446600][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1362.446600][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1362.446600][   T10]      netlink_rcv_skb+0x130/0x360
[ 1362.446600][   T10]      netlink_unicast+0x449/0x710
[ 1362.446600][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1362.446600][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1362.446600][   T10]      ___sys_sendmsg+0xee/0x170
[ 1362.446600][   T10]      __sys_sendmsg+0xcd/0x170
[ 1362.446600][   T10]      do_syscall_64+0xc6/0x1e0
[ 1362.446600][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1362.446600][   T10] 
[ 1372.689798][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1372.690210][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1372.690210][   T10]      dst_init+0x84/0x4a0
[ 1372.690210][   T10]      dst_alloc+0x97/0x150
[ 1372.690210][   T10]      ip6_dst_alloc+0x23/0x90
[ 1372.690210][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1372.690210][   T10]      ip6_pol_route+0x56f/0x840
[ 1372.690210][   T10]      fib6_rule_lookup+0x456/0x630
[ 1372.690210][   T10]      ip6_route_input+0x59c/0xa50
[ 1372.690210][   T10]      ipv6_rcv+0x397/0x810
[ 1372.690210][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1372.690210][   T10]      process_backlog+0x101/0x620
[ 1372.690210][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1372.690210][   T10]      net_rx_action+0x495/0xbe0
[ 1372.690210][   T10]      __do_softirq+0x1b5/0x7f6
[ 1372.690210][   T10] 
[ 1372.692157][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1372.692157][   T10]      netdev_get_by_index+0x5e/0x80
[ 1372.692157][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1372.692157][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1372.692157][   T10]      ip6_route_add+0x1c/0x140
[ 1372.692157][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1372.692157][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1372.692157][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1372.692157][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1372.692157][   T10]      netlink_rcv_skb+0x130/0x360
[ 1372.692157][   T10]      netlink_unicast+0x449/0x710
[ 1372.692157][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1372.692157][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1372.692157][   T10]      ___sys_sendmsg+0xee/0x170
[ 1372.692157][   T10]      __sys_sendmsg+0xcd/0x170
[ 1372.692157][   T10]      do_syscall_64+0xc6/0x1e0
[ 1372.692157][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1372.692157][   T10] 
[ 1372.694528][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1372.694528][   T10]      netdev_get_by_index+0x5e/0x80
[ 1372.694528][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1372.694528][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1372.694528][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1372.694528][   T10]      ipv6_add_addr+0x411/0x2000
[ 1372.694528][   T10]      inet6_addr_add+0x30e/0xa40
[ 1372.694528][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1372.694528][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1372.694528][   T10]      netlink_rcv_skb+0x130/0x360
[ 1372.694528][   T10]      netlink_unicast+0x449/0x710
[ 1372.694528][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1372.694528][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1372.694528][   T10]      ___sys_sendmsg+0xee/0x170
[ 1372.694528][   T10]      __sys_sendmsg+0xcd/0x170
[ 1372.694528][   T10]      do_syscall_64+0xc6/0x1e0
[ 1372.694528][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1372.694528][   T10] 
[ 1372.696886][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1372.696886][   T10]      netdev_get_by_index+0x5e/0x80
[ 1372.696886][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1372.696886][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1372.696886][   T10]      ip6_route_add+0x1c/0x140
[ 1372.696886][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1372.696886][   T10]      addrconf_add_dev+0xe2/0x170
[ 1372.696886][   T10]      inet6_addr_add+0x12f/0xa40
[ 1372.696886][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1372.696886][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1372.696886][   T10]      netlink_rcv_skb+0x130/0x360
[ 1372.696886][   T10]      netlink_unicast+0x449/0x710
[ 1372.696886][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1372.696886][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1372.696886][   T10]      ___sys_sendmsg+0xee/0x170
[ 1372.696886][   T10]      __sys_sendmsg+0xcd/0x170
[ 1372.696886][   T10]      do_syscall_64+0xc6/0x1e0
[ 1372.696886][   T10] 
[ 1372.699197][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1372.699197][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1372.699197][   T10]      ipv6_find_idev+0x102/0x170
[ 1372.699197][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1372.699197][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1372.699197][   T10]      netlink_rcv_skb+0x130/0x360
[ 1372.699197][   T10]      netlink_unicast+0x449/0x710
[ 1372.699197][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1372.699197][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1372.699197][   T10]      ___sys_sendmsg+0xee/0x170
[ 1372.699197][   T10]      __sys_sendmsg+0xcd/0x170
[ 1372.699197][   T10]      do_syscall_64+0xc6/0x1e0
[ 1372.699197][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1372.699197][   T10] 
[ 1372.700975][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1372.700975][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1372.700975][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1372.700975][   T10]      ipv6_find_idev+0x102/0x170
[ 1372.700975][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1372.700975][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1372.700975][   T10]      netlink_rcv_skb+0x130/0x360
[ 1372.700975][   T10]      netlink_unicast+0x449/0x710
[ 1372.700975][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1372.700975][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1372.700975][   T10]      ___sys_sendmsg+0xee/0x170
[ 1372.700975][   T10]      __sys_sendmsg+0xcd/0x170
[ 1372.700975][   T10]      do_syscall_64+0xc6/0x1e0
[ 1372.700975][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1372.700975][   T10] 
[ 1372.702880][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1372.703141][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1372.703141][   T10]      dst_init+0x84/0x4a0
[ 1372.703141][   T10]      dst_alloc+0x97/0x150
[ 1372.703141][   T10]      ip6_dst_alloc+0x23/0x90
[ 1372.703141][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1372.703141][   T10]      ip6_pol_route+0x56f/0x840
[ 1372.703141][   T10]      fib6_rule_lookup+0x456/0x630
[ 1372.703141][   T10]      ip6_route_input+0x59c/0xa50
[ 1372.703141][   T10]      ipv6_rcv+0x397/0x810
[ 1372.703141][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1372.703141][   T10]      process_backlog+0x101/0x620
[ 1372.703141][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1372.703141][   T10]      net_rx_action+0x495/0xbe0
[ 1372.703141][   T10]      __do_softirq+0x1b5/0x7f6
[ 1372.703141][   T10] 
[ 1372.704981][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1372.704981][   T10]      netdev_get_by_index+0x5e/0x80
[ 1372.704981][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1372.704981][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1372.704981][   T10]      ip6_route_add+0x1c/0x140
[ 1372.704981][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1372.704981][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1372.704981][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1372.704981][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1372.704981][   T10]      netlink_rcv_skb+0x130/0x360
[ 1372.704981][   T10]      netlink_unicast+0x449/0x710
[ 1372.704981][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1372.704981][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1372.704981][   T10]      ___sys_sendmsg+0xee/0x170
[ 1372.704981][   T10]      __sys_sendmsg+0xcd/0x170
[ 1372.704981][   T10]      do_syscall_64+0xc6/0x1e0
[ 1372.704981][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1372.704981][   T10] 
[ 1372.707263][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1372.707263][   T10]      netdev_get_by_index+0x5e/0x80
[ 1372.707263][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1372.707263][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1372.707263][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1372.707263][   T10]      ipv6_add_addr+0x411/0x2000
[ 1372.707263][   T10]      inet6_addr_add+0x30e/0xa40
[ 1372.707263][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1372.707263][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1372.707263][   T10]      netlink_rcv_skb+0x130/0x360
[ 1372.707263][   T10]      netlink_unicast+0x449/0x710
[ 1372.707263][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1372.707263][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1372.707263][   T10]      ___sys_sendmsg+0xee/0x170
[ 1372.707263][   T10]      __sys_sendmsg+0xcd/0x170
[ 1372.707263][   T10]      do_syscall_64+0xc6/0x1e0
[ 1372.707263][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1372.707263][   T10] 
[ 1372.709502][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1372.709502][   T10]      netdev_get_by_index+0x5e/0x80
[ 1372.709502][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1372.709502][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1372.709502][   T10]      ip6_route_add+0x1c/0x140
[ 1372.709502][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1372.709502][   T10]      addrconf_add_dev+0xe2/0x170
[ 1372.709502][   T10]      inet6_addr_add+0x12f/0xa40
[ 1372.709502][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1372.709502][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1372.709502][   T10]      netlink_rcv_skb+0x130/0x360
[ 1372.709502][   T10]      netlink_unicast+0x449/0x710
[ 1372.709502][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1372.709502][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1372.709502][   T10]      ___sys_sendmsg+0xee/0x170
[ 1372.709502][   T10]      __sys_sendmsg+0xcd/0x170
[ 1372.709502][   T10]      do_syscall_64+0xc6/0x1e0
[ 1372.709502][   T10] 
[ 1372.711719][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1372.711719][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1372.711719][   T10]      ipv6_find_idev+0x102/0x170
[ 1372.711719][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1372.711719][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1372.711719][   T10]      netlink_rcv_skb+0x130/0x360
[ 1372.711719][   T10]      netlink_unicast+0x449/0x710
[ 1372.711719][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1372.711719][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1372.711719][   T10]      ___sys_sendmsg+0xee/0x170
[ 1372.711719][   T10]      __sys_sendmsg+0xcd/0x170
[ 1372.711719][   T10]      do_syscall_64+0xc6/0x1e0
[ 1372.711719][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1372.711719][   T10] 
[ 1372.713451][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1372.713451][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1372.713451][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1372.713451][   T10]      ipv6_find_idev+0x102/0x170
[ 1372.713451][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1372.713451][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1372.713451][   T10]      netlink_rcv_skb+0x130/0x360
[ 1372.713451][   T10]      netlink_unicast+0x449/0x710
[ 1372.713451][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1372.713451][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1372.713451][   T10]      ___sys_sendmsg+0xee/0x170
[ 1372.713451][   T10]      __sys_sendmsg+0xcd/0x170
[ 1372.713451][   T10]      do_syscall_64+0xc6/0x1e0
[ 1372.713451][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1372.713451][   T10] 
[ 1382.953832][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1382.954246][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1382.954246][   T10]      dst_init+0x84/0x4a0
[ 1382.954246][   T10]      dst_alloc+0x97/0x150
[ 1382.954246][   T10]      ip6_dst_alloc+0x23/0x90
[ 1382.954246][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1382.954246][   T10]      ip6_pol_route+0x56f/0x840
[ 1382.954246][   T10]      fib6_rule_lookup+0x456/0x630
[ 1382.954246][   T10]      ip6_route_input+0x59c/0xa50
[ 1382.954246][   T10]      ipv6_rcv+0x397/0x810
[ 1382.954246][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1382.954246][   T10]      process_backlog+0x101/0x620
[ 1382.954246][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1382.954246][   T10]      net_rx_action+0x495/0xbe0
[ 1382.954246][   T10]      __do_softirq+0x1b5/0x7f6
[ 1382.954246][   T10] 
[ 1382.955988][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1382.955988][   T10]      netdev_get_by_index+0x5e/0x80
[ 1382.955988][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1382.955988][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1382.955988][   T10]      ip6_route_add+0x1c/0x140
[ 1382.955988][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1382.955988][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1382.955988][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1382.955988][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1382.955988][   T10]      netlink_rcv_skb+0x130/0x360
[ 1382.955988][   T10]      netlink_unicast+0x449/0x710
[ 1382.955988][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1382.955988][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1382.955988][   T10]      ___sys_sendmsg+0xee/0x170
[ 1382.955988][   T10]      __sys_sendmsg+0xcd/0x170
[ 1382.955988][   T10]      do_syscall_64+0xc6/0x1e0
[ 1382.955988][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1382.955988][   T10] 
[ 1382.958036][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1382.958036][   T10]      netdev_get_by_index+0x5e/0x80
[ 1382.958036][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1382.958036][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1382.958036][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1382.958036][   T10]      ipv6_add_addr+0x411/0x2000
[ 1382.958036][   T10]      inet6_addr_add+0x30e/0xa40
[ 1382.958036][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1382.958036][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1382.958036][   T10]      netlink_rcv_skb+0x130/0x360
[ 1382.958036][   T10]      netlink_unicast+0x449/0x710
[ 1382.958036][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1382.958036][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1382.958036][   T10]      ___sys_sendmsg+0xee/0x170
[ 1382.958036][   T10]      __sys_sendmsg+0xcd/0x170
[ 1382.958036][   T10]      do_syscall_64+0xc6/0x1e0
[ 1382.958036][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1382.958036][   T10] 
[ 1382.960078][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1382.960078][   T10]      netdev_get_by_index+0x5e/0x80
[ 1382.960078][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1382.960078][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1382.960078][   T10]      ip6_route_add+0x1c/0x140
[ 1382.960078][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1382.960078][   T10]      addrconf_add_dev+0xe2/0x170
[ 1382.960078][   T10]      inet6_addr_add+0x12f/0xa40
[ 1382.960078][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1382.960078][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1382.960078][   T10]      netlink_rcv_skb+0x130/0x360
[ 1382.960078][   T10]      netlink_unicast+0x449/0x710
[ 1382.960078][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1382.960078][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1382.960078][   T10]      ___sys_sendmsg+0xee/0x170
[ 1382.960078][   T10]      __sys_sendmsg+0xcd/0x170
[ 1382.960078][   T10]      do_syscall_64+0xc6/0x1e0
[ 1382.960078][   T10] 
[ 1382.962088][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1382.962088][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1382.962088][   T10]      ipv6_find_idev+0x102/0x170
[ 1382.962088][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1382.962088][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1382.962088][   T10]      netlink_rcv_skb+0x130/0x360
[ 1382.962088][   T10]      netlink_unicast+0x449/0x710
[ 1382.962088][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1382.962088][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1382.962088][   T10]      ___sys_sendmsg+0xee/0x170
[ 1382.962088][   T10]      __sys_sendmsg+0xcd/0x170
[ 1382.962088][   T10]      do_syscall_64+0xc6/0x1e0
[ 1382.962088][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1382.962088][   T10] 
[ 1382.963692][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1382.963692][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1382.963692][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1382.963692][   T10]      ipv6_find_idev+0x102/0x170
[ 1382.963692][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1382.963692][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1382.963692][   T10]      netlink_rcv_skb+0x130/0x360
[ 1382.963692][   T10]      netlink_unicast+0x449/0x710
[ 1382.963692][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1382.963692][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1382.963692][   T10]      ___sys_sendmsg+0xee/0x170
[ 1382.963692][   T10]      __sys_sendmsg+0xcd/0x170
[ 1382.963692][   T10]      do_syscall_64+0xc6/0x1e0
[ 1382.963692][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1382.963692][   T10] 
[ 1382.965435][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1382.965700][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1382.965700][   T10]      dst_init+0x84/0x4a0
[ 1382.965700][   T10]      dst_alloc+0x97/0x150
[ 1382.965700][   T10]      ip6_dst_alloc+0x23/0x90
[ 1382.965700][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1382.965700][   T10]      ip6_pol_route+0x56f/0x840
[ 1382.965700][   T10]      fib6_rule_lookup+0x456/0x630
[ 1382.965700][   T10]      ip6_route_input+0x59c/0xa50
[ 1382.965700][   T10]      ipv6_rcv+0x397/0x810
[ 1382.965700][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1382.965700][   T10]      process_backlog+0x101/0x620
[ 1382.965700][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1382.965700][   T10]      net_rx_action+0x495/0xbe0
[ 1382.965700][   T10]      __do_softirq+0x1b5/0x7f6
[ 1382.965700][   T10] 
[ 1382.967381][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1382.967381][   T10]      netdev_get_by_index+0x5e/0x80
[ 1382.967381][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1382.967381][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1382.967381][   T10]      ip6_route_add+0x1c/0x140
[ 1382.967381][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1382.967381][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1382.967381][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1382.967381][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1382.967381][   T10]      netlink_rcv_skb+0x130/0x360
[ 1382.967381][   T10]      netlink_unicast+0x449/0x710
[ 1382.967381][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1382.967381][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1382.967381][   T10]      ___sys_sendmsg+0xee/0x170
[ 1382.967381][   T10]      __sys_sendmsg+0xcd/0x170
[ 1382.967381][   T10]      do_syscall_64+0xc6/0x1e0
[ 1382.967381][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1382.967381][   T10] 
[ 1382.969445][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1382.969445][   T10]      netdev_get_by_index+0x5e/0x80
[ 1382.969445][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1382.969445][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1382.969445][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1382.969445][   T10]      ipv6_add_addr+0x411/0x2000
[ 1382.969445][   T10]      inet6_addr_add+0x30e/0xa40
[ 1382.969445][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1382.969445][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1382.969445][   T10]      netlink_rcv_skb+0x130/0x360
[ 1382.969445][   T10]      netlink_unicast+0x449/0x710
[ 1382.969445][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1382.969445][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1382.969445][   T10]      ___sys_sendmsg+0xee/0x170
[ 1382.969445][   T10]      __sys_sendmsg+0xcd/0x170
[ 1382.969445][   T10]      do_syscall_64+0xc6/0x1e0
[ 1382.969445][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1382.969445][   T10] 
[ 1382.971517][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1382.971517][   T10]      netdev_get_by_index+0x5e/0x80
[ 1382.971517][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1382.971517][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1382.971517][   T10]      ip6_route_add+0x1c/0x140
[ 1382.971517][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1382.971517][   T10]      addrconf_add_dev+0xe2/0x170
[ 1382.971517][   T10]      inet6_addr_add+0x12f/0xa40
[ 1382.971517][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1382.971517][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1382.971517][   T10]      netlink_rcv_skb+0x130/0x360
[ 1382.971517][   T10]      netlink_unicast+0x449/0x710
[ 1382.971517][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1382.971517][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1382.971517][   T10]      ___sys_sendmsg+0xee/0x170
[ 1382.971517][   T10]      __sys_sendmsg+0xcd/0x170
[ 1382.971517][   T10]      do_syscall_64+0xc6/0x1e0
[ 1382.971517][   T10] 
[ 1382.973544][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1382.973544][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1382.973544][   T10]      ipv6_find_idev+0x102/0x170
[ 1382.973544][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1382.973544][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1382.973544][   T10]      netlink_rcv_skb+0x130/0x360
[ 1382.973544][   T10]      netlink_unicast+0x449/0x710
[ 1382.973544][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1382.973544][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1382.973544][   T10]      ___sys_sendmsg+0xee/0x170
[ 1382.973544][   T10]      __sys_sendmsg+0xcd/0x170
[ 1382.973544][   T10]      do_syscall_64+0xc6/0x1e0
[ 1382.973544][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1382.973544][   T10] 
[ 1382.975148][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1382.975148][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1382.975148][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1382.975148][   T10]      ipv6_find_idev+0x102/0x170
[ 1382.975148][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1382.975148][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1382.975148][   T10]      netlink_rcv_skb+0x130/0x360
[ 1382.975148][   T10]      netlink_unicast+0x449/0x710
[ 1382.975148][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1382.975148][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1382.975148][   T10]      ___sys_sendmsg+0xee/0x170
[ 1382.975148][   T10]      __sys_sendmsg+0xcd/0x170
[ 1382.975148][   T10]      do_syscall_64+0xc6/0x1e0
[ 1382.975148][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1382.975148][   T10] 
[ 1393.217857][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1393.218269][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1393.218269][   T10]      dst_init+0x84/0x4a0
[ 1393.218269][   T10]      dst_alloc+0x97/0x150
[ 1393.218269][   T10]      ip6_dst_alloc+0x23/0x90
[ 1393.218269][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1393.218269][   T10]      ip6_pol_route+0x56f/0x840
[ 1393.218269][   T10]      fib6_rule_lookup+0x456/0x630
[ 1393.218269][   T10]      ip6_route_input+0x59c/0xa50
[ 1393.218269][   T10]      ipv6_rcv+0x397/0x810
[ 1393.218269][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1393.218269][   T10]      process_backlog+0x101/0x620
[ 1393.218269][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1393.218269][   T10]      net_rx_action+0x495/0xbe0
[ 1393.218269][   T10]      __do_softirq+0x1b5/0x7f6
[ 1393.218269][   T10] 
[ 1393.219977][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1393.219977][   T10]      netdev_get_by_index+0x5e/0x80
[ 1393.219977][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1393.219977][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1393.219977][   T10]      ip6_route_add+0x1c/0x140
[ 1393.219977][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1393.219977][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1393.219977][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1393.219977][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1393.219977][   T10]      netlink_rcv_skb+0x130/0x360
[ 1393.219977][   T10]      netlink_unicast+0x449/0x710
[ 1393.219977][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1393.219977][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1393.219977][   T10]      ___sys_sendmsg+0xee/0x170
[ 1393.219977][   T10]      __sys_sendmsg+0xcd/0x170
[ 1393.219977][   T10]      do_syscall_64+0xc6/0x1e0
[ 1393.219977][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1393.219977][   T10] 
[ 1393.222037][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1393.222037][   T10]      netdev_get_by_index+0x5e/0x80
[ 1393.222037][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1393.222037][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1393.222037][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1393.222037][   T10]      ipv6_add_addr+0x411/0x2000
[ 1393.222037][   T10]      inet6_addr_add+0x30e/0xa40
[ 1393.222037][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1393.222037][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1393.222037][   T10]      netlink_rcv_skb+0x130/0x360
[ 1393.222037][   T10]      netlink_unicast+0x449/0x710
[ 1393.222037][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1393.222037][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1393.222037][   T10]      ___sys_sendmsg+0xee/0x170
[ 1393.222037][   T10]      __sys_sendmsg+0xcd/0x170
[ 1393.222037][   T10]      do_syscall_64+0xc6/0x1e0
[ 1393.222037][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1393.222037][   T10] 
[ 1393.224079][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1393.224079][   T10]      netdev_get_by_index+0x5e/0x80
[ 1393.224079][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1393.224079][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1393.224079][   T10]      ip6_route_add+0x1c/0x140
[ 1393.224079][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1393.224079][   T10]      addrconf_add_dev+0xe2/0x170
[ 1393.224079][   T10]      inet6_addr_add+0x12f/0xa40
[ 1393.224079][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1393.224079][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1393.224079][   T10]      netlink_rcv_skb+0x130/0x360
[ 1393.224079][   T10]      netlink_unicast+0x449/0x710
[ 1393.224079][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1393.224079][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1393.224079][   T10]      ___sys_sendmsg+0xee/0x170
[ 1393.224079][   T10]      __sys_sendmsg+0xcd/0x170
[ 1393.224079][   T10]      do_syscall_64+0xc6/0x1e0
[ 1393.224079][   T10] 
[ 1393.226081][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1393.226081][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1393.226081][   T10]      ipv6_find_idev+0x102/0x170
[ 1393.226081][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1393.226081][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1393.226081][   T10]      netlink_rcv_skb+0x130/0x360
[ 1393.226081][   T10]      netlink_unicast+0x449/0x710
[ 1393.226081][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1393.226081][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1393.226081][   T10]      ___sys_sendmsg+0xee/0x170
[ 1393.226081][   T10]      __sys_sendmsg+0xcd/0x170
[ 1393.226081][   T10]      do_syscall_64+0xc6/0x1e0
[ 1393.226081][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1393.226081][   T10] 
[ 1393.227657][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1393.227657][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1393.227657][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1393.227657][   T10]      ipv6_find_idev+0x102/0x170
[ 1393.227657][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1393.227657][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1393.227657][   T10]      netlink_rcv_skb+0x130/0x360
[ 1393.227657][   T10]      netlink_unicast+0x449/0x710
[ 1393.227657][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1393.227657][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1393.227657][   T10]      ___sys_sendmsg+0xee/0x170
[ 1393.227657][   T10]      __sys_sendmsg+0xcd/0x170
[ 1393.227657][   T10]      do_syscall_64+0xc6/0x1e0
[ 1393.227657][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1393.227657][   T10] 
[ 1393.229370][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1393.229617][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1393.229617][   T10]      dst_init+0x84/0x4a0
[ 1393.229617][   T10]      dst_alloc+0x97/0x150
[ 1393.229617][   T10]      ip6_dst_alloc+0x23/0x90
[ 1393.229617][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1393.229617][   T10]      ip6_pol_route+0x56f/0x840
[ 1393.229617][   T10]      fib6_rule_lookup+0x456/0x630
[ 1393.229617][   T10]      ip6_route_input+0x59c/0xa50
[ 1393.229617][   T10]      ipv6_rcv+0x397/0x810
[ 1393.229617][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1393.229617][   T10]      process_backlog+0x101/0x620
[ 1393.229617][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1393.229617][   T10]      net_rx_action+0x495/0xbe0
[ 1393.229617][   T10]      __do_softirq+0x1b5/0x7f6
[ 1393.229617][   T10] 
[ 1393.231286][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1393.231286][   T10]      netdev_get_by_index+0x5e/0x80
[ 1393.231286][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1393.231286][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1393.231286][   T10]      ip6_route_add+0x1c/0x140
[ 1393.231286][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1393.231286][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1393.231286][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1393.231286][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1393.231286][   T10]      netlink_rcv_skb+0x130/0x360
[ 1393.231286][   T10]      netlink_unicast+0x449/0x710
[ 1393.231286][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1393.231286][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1393.231286][   T10]      ___sys_sendmsg+0xee/0x170
[ 1393.231286][   T10]      __sys_sendmsg+0xcd/0x170
[ 1393.231286][   T10]      do_syscall_64+0xc6/0x1e0
[ 1393.231286][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1393.231286][   T10] 
[ 1393.233311][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1393.233311][   T10]      netdev_get_by_index+0x5e/0x80
[ 1393.233311][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1393.233311][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1393.233311][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1393.233311][   T10]      ipv6_add_addr+0x411/0x2000
[ 1393.233311][   T10]      inet6_addr_add+0x30e/0xa40
[ 1393.233311][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1393.233311][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1393.233311][   T10]      netlink_rcv_skb+0x130/0x360
[ 1393.233311][   T10]      netlink_unicast+0x449/0x710
[ 1393.233311][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1393.233311][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1393.233311][   T10]      ___sys_sendmsg+0xee/0x170
[ 1393.233311][   T10]      __sys_sendmsg+0xcd/0x170
[ 1393.233311][   T10]      do_syscall_64+0xc6/0x1e0
[ 1393.233311][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1393.233311][   T10] 
[ 1393.235322][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1393.235322][   T10]      netdev_get_by_index+0x5e/0x80
[ 1393.235322][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1393.235322][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1393.235322][   T10]      ip6_route_add+0x1c/0x140
[ 1393.235322][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1393.235322][   T10]      addrconf_add_dev+0xe2/0x170
[ 1393.235322][   T10]      inet6_addr_add+0x12f/0xa40
[ 1393.235322][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1393.235322][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1393.235322][   T10]      netlink_rcv_skb+0x130/0x360
[ 1393.235322][   T10]      netlink_unicast+0x449/0x710
[ 1393.235322][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1393.235322][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1393.235322][   T10]      ___sys_sendmsg+0xee/0x170
[ 1393.235322][   T10]      __sys_sendmsg+0xcd/0x170
[ 1393.235322][   T10]      do_syscall_64+0xc6/0x1e0
[ 1393.235322][   T10] 
[ 1393.237311][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1393.237311][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1393.237311][   T10]      ipv6_find_idev+0x102/0x170
[ 1393.237311][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1393.237311][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1393.237311][   T10]      netlink_rcv_skb+0x130/0x360
[ 1393.237311][   T10]      netlink_unicast+0x449/0x710
[ 1393.237311][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1393.237311][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1393.237311][   T10]      ___sys_sendmsg+0xee/0x170
[ 1393.237311][   T10]      __sys_sendmsg+0xcd/0x170
[ 1393.237311][   T10]      do_syscall_64+0xc6/0x1e0
[ 1393.237311][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1393.237311][   T10] 
[ 1393.238868][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1393.238868][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1393.238868][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1393.238868][   T10]      ipv6_find_idev+0x102/0x170
[ 1393.238868][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1393.238868][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1393.238868][   T10]      netlink_rcv_skb+0x130/0x360
[ 1393.238868][   T10]      netlink_unicast+0x449/0x710
[ 1393.238868][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1393.238868][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1393.238868][   T10]      ___sys_sendmsg+0xee/0x170
[ 1393.238868][   T10]      __sys_sendmsg+0xcd/0x170
[ 1393.238868][   T10]      do_syscall_64+0xc6/0x1e0
[ 1393.238868][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1393.238868][   T10] 
[ 1403.265771][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1403.266159][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1403.266159][   T10]      dst_init+0x84/0x4a0
[ 1403.266159][   T10]      dst_alloc+0x97/0x150
[ 1403.266159][   T10]      ip6_dst_alloc+0x23/0x90
[ 1403.266159][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1403.266159][   T10]      ip6_pol_route+0x56f/0x840
[ 1403.266159][   T10]      fib6_rule_lookup+0x456/0x630
[ 1403.266159][   T10]      ip6_route_input+0x59c/0xa50
[ 1403.266159][   T10]      ipv6_rcv+0x397/0x810
[ 1403.266159][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1403.266159][   T10]      process_backlog+0x101/0x620
[ 1403.266159][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1403.266159][   T10]      net_rx_action+0x495/0xbe0
[ 1403.266159][   T10]      __do_softirq+0x1b5/0x7f6
[ 1403.266159][   T10] 
[ 1403.267854][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1403.267854][   T10]      netdev_get_by_index+0x5e/0x80
[ 1403.267854][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1403.267854][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1403.267854][   T10]      ip6_route_add+0x1c/0x140
[ 1403.267854][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1403.267854][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1403.267854][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1403.267854][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1403.267854][   T10]      netlink_rcv_skb+0x130/0x360
[ 1403.267854][   T10]      netlink_unicast+0x449/0x710
[ 1403.267854][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1403.267854][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1403.267854][   T10]      ___sys_sendmsg+0xee/0x170
[ 1403.267854][   T10]      __sys_sendmsg+0xcd/0x170
[ 1403.267854][   T10]      do_syscall_64+0xc6/0x1e0
[ 1403.267854][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1403.267854][   T10] 
[ 1403.269908][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1403.269908][   T10]      netdev_get_by_index+0x5e/0x80
[ 1403.269908][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1403.269908][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1403.269908][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1403.269908][   T10]      ipv6_add_addr+0x411/0x2000
[ 1403.269908][   T10]      inet6_addr_add+0x30e/0xa40
[ 1403.269908][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1403.269908][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1403.269908][   T10]      netlink_rcv_skb+0x130/0x360
[ 1403.269908][   T10]      netlink_unicast+0x449/0x710
[ 1403.269908][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1403.269908][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1403.269908][   T10]      ___sys_sendmsg+0xee/0x170
[ 1403.269908][   T10]      __sys_sendmsg+0xcd/0x170
[ 1403.269908][   T10]      do_syscall_64+0xc6/0x1e0
[ 1403.269908][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1403.269908][   T10] 
[ 1403.271936][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1403.271936][   T10]      netdev_get_by_index+0x5e/0x80
[ 1403.271936][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1403.271936][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1403.271936][   T10]      ip6_route_add+0x1c/0x140
[ 1403.271936][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1403.271936][   T10]      addrconf_add_dev+0xe2/0x170
[ 1403.271936][   T10]      inet6_addr_add+0x12f/0xa40
[ 1403.271936][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1403.271936][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1403.271936][   T10]      netlink_rcv_skb+0x130/0x360
[ 1403.271936][   T10]      netlink_unicast+0x449/0x710
[ 1403.271936][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1403.271936][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1403.271936][   T10]      ___sys_sendmsg+0xee/0x170
[ 1403.271936][   T10]      __sys_sendmsg+0xcd/0x170
[ 1403.271936][   T10]      do_syscall_64+0xc6/0x1e0
[ 1403.271936][   T10] 
[ 1403.273933][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1403.273933][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1403.273933][   T10]      ipv6_find_idev+0x102/0x170
[ 1403.273933][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1403.273933][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1403.273933][   T10]      netlink_rcv_skb+0x130/0x360
[ 1403.273933][   T10]      netlink_unicast+0x449/0x710
[ 1403.273933][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1403.273933][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1403.273933][   T10]      ___sys_sendmsg+0xee/0x170
[ 1403.273933][   T10]      __sys_sendmsg+0xcd/0x170
[ 1403.273933][   T10]      do_syscall_64+0xc6/0x1e0
[ 1403.273933][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1403.273933][   T10] 
[ 1403.275588][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1403.275588][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1403.275588][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1403.275588][   T10]      ipv6_find_idev+0x102/0x170
[ 1403.275588][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1403.275588][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1403.275588][   T10]      netlink_rcv_skb+0x130/0x360
[ 1403.275588][   T10]      netlink_unicast+0x449/0x710
[ 1403.275588][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1403.275588][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1403.275588][   T10]      ___sys_sendmsg+0xee/0x170
[ 1403.275588][   T10]      __sys_sendmsg+0xcd/0x170
[ 1403.275588][   T10]      do_syscall_64+0xc6/0x1e0
[ 1403.275588][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1403.275588][   T10] 
[ 1403.277463][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1403.277746][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1403.277746][   T10]      dst_init+0x84/0x4a0
[ 1403.277746][   T10]      dst_alloc+0x97/0x150
[ 1403.277746][   T10]      ip6_dst_alloc+0x23/0x90
[ 1403.277746][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1403.277746][   T10]      ip6_pol_route+0x56f/0x840
[ 1403.277746][   T10]      fib6_rule_lookup+0x456/0x630
[ 1403.277746][   T10]      ip6_route_input+0x59c/0xa50
[ 1403.277746][   T10]      ipv6_rcv+0x397/0x810
[ 1403.277746][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1403.277746][   T10]      process_backlog+0x101/0x620
[ 1403.277746][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1403.277746][   T10]      net_rx_action+0x495/0xbe0
[ 1403.277746][   T10]      __do_softirq+0x1b5/0x7f6
[ 1403.277746][   T10] 
[ 1403.279516][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1403.279516][   T10]      netdev_get_by_index+0x5e/0x80
[ 1403.279516][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1403.279516][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1403.279516][   T10]      ip6_route_add+0x1c/0x140
[ 1403.279516][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1403.279516][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1403.279516][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1403.279516][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1403.279516][   T10]      netlink_rcv_skb+0x130/0x360
[ 1403.279516][   T10]      netlink_unicast+0x449/0x710
[ 1403.279516][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1403.279516][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1403.279516][   T10]      ___sys_sendmsg+0xee/0x170
[ 1403.279516][   T10]      __sys_sendmsg+0xcd/0x170
[ 1403.279516][   T10]      do_syscall_64+0xc6/0x1e0
[ 1403.279516][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1403.279516][   T10] 
[ 1403.281581][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1403.281581][   T10]      netdev_get_by_index+0x5e/0x80
[ 1403.281581][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1403.281581][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1403.281581][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1403.281581][   T10]      ipv6_add_addr+0x411/0x2000
[ 1403.281581][   T10]      inet6_addr_add+0x30e/0xa40
[ 1403.281581][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1403.281581][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1403.281581][   T10]      netlink_rcv_skb+0x130/0x360
[ 1403.281581][   T10]      netlink_unicast+0x449/0x710
[ 1403.281581][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1403.281581][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1403.281581][   T10]      ___sys_sendmsg+0xee/0x170
[ 1403.281581][   T10]      __sys_sendmsg+0xcd/0x170
[ 1403.281581][   T10]      do_syscall_64+0xc6/0x1e0
[ 1403.281581][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1403.281581][   T10] 
[ 1403.283793][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1403.283793][   T10]      netdev_get_by_index+0x5e/0x80
[ 1403.283793][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1403.283793][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1403.283793][   T10]      ip6_route_add+0x1c/0x140
[ 1403.283793][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1403.283793][   T10]      addrconf_add_dev+0xe2/0x170
[ 1403.283793][   T10]      inet6_addr_add+0x12f/0xa40
[ 1403.283793][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1403.283793][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1403.283793][   T10]      netlink_rcv_skb+0x130/0x360
[ 1403.283793][   T10]      netlink_unicast+0x449/0x710
[ 1403.283793][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1403.283793][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1403.283793][   T10]      ___sys_sendmsg+0xee/0x170
[ 1403.283793][   T10]      __sys_sendmsg+0xcd/0x170
[ 1403.283793][   T10]      do_syscall_64+0xc6/0x1e0
[ 1403.283793][   T10] 
[ 1403.285962][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1403.285962][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1403.285962][   T10]      ipv6_find_idev+0x102/0x170
[ 1403.285962][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1403.285962][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1403.285962][   T10]      netlink_rcv_skb+0x130/0x360
[ 1403.285962][   T10]      netlink_unicast+0x449/0x710
[ 1403.285962][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1403.285962][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1403.285962][   T10]      ___sys_sendmsg+0xee/0x170
[ 1403.285962][   T10]      __sys_sendmsg+0xcd/0x170
[ 1403.285962][   T10]      do_syscall_64+0xc6/0x1e0
[ 1403.285962][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1403.285962][   T10] 
[ 1403.287523][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1403.287523][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1403.287523][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1403.287523][   T10]      ipv6_find_idev+0x102/0x170
[ 1403.287523][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1403.287523][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1403.287523][   T10]      netlink_rcv_skb+0x130/0x360
[ 1403.287523][   T10]      netlink_unicast+0x449/0x710
[ 1403.287523][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1403.287523][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1403.287523][   T10]      ___sys_sendmsg+0xee/0x170
[ 1403.287523][   T10]      __sys_sendmsg+0xcd/0x170
[ 1403.287523][   T10]      do_syscall_64+0xc6/0x1e0
[ 1403.287523][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1403.287523][   T10] 
[ 1413.529820][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1413.530233][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1413.530233][   T10]      dst_init+0x84/0x4a0
[ 1413.530233][   T10]      dst_alloc+0x97/0x150
[ 1413.530233][   T10]      ip6_dst_alloc+0x23/0x90
[ 1413.530233][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1413.530233][   T10]      ip6_pol_route+0x56f/0x840
[ 1413.530233][   T10]      fib6_rule_lookup+0x456/0x630
[ 1413.530233][   T10]      ip6_route_input+0x59c/0xa50
[ 1413.530233][   T10]      ipv6_rcv+0x397/0x810
[ 1413.530233][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1413.530233][   T10]      process_backlog+0x101/0x620
[ 1413.530233][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1413.530233][   T10]      net_rx_action+0x495/0xbe0
[ 1413.530233][   T10]      __do_softirq+0x1b5/0x7f6
[ 1413.530233][   T10] 
[ 1413.531949][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1413.531949][   T10]      netdev_get_by_index+0x5e/0x80
[ 1413.531949][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1413.531949][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1413.531949][   T10]      ip6_route_add+0x1c/0x140
[ 1413.531949][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1413.531949][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1413.531949][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1413.531949][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1413.531949][   T10]      netlink_rcv_skb+0x130/0x360
[ 1413.531949][   T10]      netlink_unicast+0x449/0x710
[ 1413.531949][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1413.531949][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1413.531949][   T10]      ___sys_sendmsg+0xee/0x170
[ 1413.531949][   T10]      __sys_sendmsg+0xcd/0x170
[ 1413.531949][   T10]      do_syscall_64+0xc6/0x1e0
[ 1413.531949][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1413.531949][   T10] 
[ 1413.533988][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1413.533988][   T10]      netdev_get_by_index+0x5e/0x80
[ 1413.533988][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1413.533988][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1413.533988][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1413.533988][   T10]      ipv6_add_addr+0x411/0x2000
[ 1413.533988][   T10]      inet6_addr_add+0x30e/0xa40
[ 1413.533988][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1413.533988][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1413.533988][   T10]      netlink_rcv_skb+0x130/0x360
[ 1413.533988][   T10]      netlink_unicast+0x449/0x710
[ 1413.533988][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1413.533988][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1413.533988][   T10]      ___sys_sendmsg+0xee/0x170
[ 1413.533988][   T10]      __sys_sendmsg+0xcd/0x170
[ 1413.533988][   T10]      do_syscall_64+0xc6/0x1e0
[ 1413.533988][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1413.533988][   T10] 
[ 1413.536040][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1413.536040][   T10]      netdev_get_by_index+0x5e/0x80
[ 1413.536040][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1413.536040][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1413.536040][   T10]      ip6_route_add+0x1c/0x140
[ 1413.536040][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1413.536040][   T10]      addrconf_add_dev+0xe2/0x170
[ 1413.536040][   T10]      inet6_addr_add+0x12f/0xa40
[ 1413.536040][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1413.536040][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1413.536040][   T10]      netlink_rcv_skb+0x130/0x360
[ 1413.536040][   T10]      netlink_unicast+0x449/0x710
[ 1413.536040][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1413.536040][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1413.536040][   T10]      ___sys_sendmsg+0xee/0x170
[ 1413.536040][   T10]      __sys_sendmsg+0xcd/0x170
[ 1413.536040][   T10]      do_syscall_64+0xc6/0x1e0
[ 1413.536040][   T10] 
[ 1413.538047][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1413.538047][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1413.538047][   T10]      ipv6_find_idev+0x102/0x170
[ 1413.538047][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1413.538047][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1413.538047][   T10]      netlink_rcv_skb+0x130/0x360
[ 1413.538047][   T10]      netlink_unicast+0x449/0x710
[ 1413.538047][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1413.538047][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1413.538047][   T10]      ___sys_sendmsg+0xee/0x170
[ 1413.538047][   T10]      __sys_sendmsg+0xcd/0x170
[ 1413.538047][   T10]      do_syscall_64+0xc6/0x1e0
[ 1413.538047][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1413.538047][   T10] 
[ 1413.539628][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1413.539628][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1413.539628][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1413.539628][   T10]      ipv6_find_idev+0x102/0x170
[ 1413.539628][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1413.539628][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1413.539628][   T10]      netlink_rcv_skb+0x130/0x360
[ 1413.539628][   T10]      netlink_unicast+0x449/0x710
[ 1413.539628][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1413.539628][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1413.539628][   T10]      ___sys_sendmsg+0xee/0x170
[ 1413.539628][   T10]      __sys_sendmsg+0xcd/0x170
[ 1413.539628][   T10]      do_syscall_64+0xc6/0x1e0
[ 1413.539628][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1413.539628][   T10] 
[ 1413.541356][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1413.541611][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1413.541611][   T10]      dst_init+0x84/0x4a0
[ 1413.541611][   T10]      dst_alloc+0x97/0x150
[ 1413.541611][   T10]      ip6_dst_alloc+0x23/0x90
[ 1413.541611][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1413.541611][   T10]      ip6_pol_route+0x56f/0x840
[ 1413.541611][   T10]      fib6_rule_lookup+0x456/0x630
[ 1413.541611][   T10]      ip6_route_input+0x59c/0xa50
[ 1413.541611][   T10]      ipv6_rcv+0x397/0x810
[ 1413.541611][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1413.541611][   T10]      process_backlog+0x101/0x620
[ 1413.541611][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1413.541611][   T10]      net_rx_action+0x495/0xbe0
[ 1413.541611][   T10]      __do_softirq+0x1b5/0x7f6
[ 1413.541611][   T10] 
[ 1413.543254][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1413.543254][   T10]      netdev_get_by_index+0x5e/0x80
[ 1413.543254][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1413.543254][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1413.543254][   T10]      ip6_route_add+0x1c/0x140
[ 1413.543254][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1413.543254][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1413.543254][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1413.543254][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1413.543254][   T10]      netlink_rcv_skb+0x130/0x360
[ 1413.543254][   T10]      netlink_unicast+0x449/0x710
[ 1413.543254][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1413.543254][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1413.543254][   T10]      ___sys_sendmsg+0xee/0x170
[ 1413.543254][   T10]      __sys_sendmsg+0xcd/0x170
[ 1413.543254][   T10]      do_syscall_64+0xc6/0x1e0
[ 1413.543254][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1413.543254][   T10] 
[ 1413.545265][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1413.545265][   T10]      netdev_get_by_index+0x5e/0x80
[ 1413.545265][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1413.545265][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1413.545265][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1413.545265][   T10]      ipv6_add_addr+0x411/0x2000
[ 1413.545265][   T10]      inet6_addr_add+0x30e/0xa40
[ 1413.545265][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1413.545265][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1413.545265][   T10]      netlink_rcv_skb+0x130/0x360
[ 1413.545265][   T10]      netlink_unicast+0x449/0x710
[ 1413.545265][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1413.545265][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1413.545265][   T10]      ___sys_sendmsg+0xee/0x170
[ 1413.545265][   T10]      __sys_sendmsg+0xcd/0x170
[ 1413.545265][   T10]      do_syscall_64+0xc6/0x1e0
[ 1413.545265][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1413.545265][   T10] 
[ 1413.547279][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1413.547279][   T10]      netdev_get_by_index+0x5e/0x80
[ 1413.547279][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1413.547279][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1413.547279][   T10]      ip6_route_add+0x1c/0x140
[ 1413.547279][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1413.547279][   T10]      addrconf_add_dev+0xe2/0x170
[ 1413.547279][   T10]      inet6_addr_add+0x12f/0xa40
[ 1413.547279][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1413.547279][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1413.547279][   T10]      netlink_rcv_skb+0x130/0x360
[ 1413.547279][   T10]      netlink_unicast+0x449/0x710
[ 1413.547279][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1413.547279][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1413.547279][   T10]      ___sys_sendmsg+0xee/0x170
[ 1413.547279][   T10]      __sys_sendmsg+0xcd/0x170
[ 1413.547279][   T10]      do_syscall_64+0xc6/0x1e0
[ 1413.547279][   T10] 
[ 1413.549272][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1413.549272][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1413.549272][   T10]      ipv6_find_idev+0x102/0x170
[ 1413.549272][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1413.549272][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1413.549272][   T10]      netlink_rcv_skb+0x130/0x360
[ 1413.549272][   T10]      netlink_unicast+0x449/0x710
[ 1413.549272][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1413.549272][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1413.549272][   T10]      ___sys_sendmsg+0xee/0x170
[ 1413.549272][   T10]      __sys_sendmsg+0xcd/0x170
[ 1413.549272][   T10]      do_syscall_64+0xc6/0x1e0
[ 1413.549272][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1413.549272][   T10] 
[ 1413.550834][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1413.550834][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1413.550834][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1413.550834][   T10]      ipv6_find_idev+0x102/0x170
[ 1413.550834][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1413.550834][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1413.550834][   T10]      netlink_rcv_skb+0x130/0x360
[ 1413.550834][   T10]      netlink_unicast+0x449/0x710
[ 1413.550834][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1413.550834][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1413.550834][   T10]      ___sys_sendmsg+0xee/0x170
[ 1413.550834][   T10]      __sys_sendmsg+0xcd/0x170
[ 1413.550834][   T10]      do_syscall_64+0xc6/0x1e0
[ 1413.550834][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1413.550834][   T10] 
[ 1423.793799][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1423.794191][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1423.794191][   T10]      dst_init+0x84/0x4a0
[ 1423.794191][   T10]      dst_alloc+0x97/0x150
[ 1423.794191][   T10]      ip6_dst_alloc+0x23/0x90
[ 1423.794191][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1423.794191][   T10]      ip6_pol_route+0x56f/0x840
[ 1423.794191][   T10]      fib6_rule_lookup+0x456/0x630
[ 1423.794191][   T10]      ip6_route_input+0x59c/0xa50
[ 1423.794191][   T10]      ipv6_rcv+0x397/0x810
[ 1423.794191][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1423.794191][   T10]      process_backlog+0x101/0x620
[ 1423.794191][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1423.794191][   T10]      net_rx_action+0x495/0xbe0
[ 1423.794191][   T10]      __do_softirq+0x1b5/0x7f6
[ 1423.794191][   T10] 
[ 1423.795915][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1423.795915][   T10]      netdev_get_by_index+0x5e/0x80
[ 1423.795915][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1423.795915][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1423.795915][   T10]      ip6_route_add+0x1c/0x140
[ 1423.795915][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1423.795915][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1423.795915][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1423.795915][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1423.795915][   T10]      netlink_rcv_skb+0x130/0x360
[ 1423.795915][   T10]      netlink_unicast+0x449/0x710
[ 1423.795915][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1423.795915][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1423.795915][   T10]      ___sys_sendmsg+0xee/0x170
[ 1423.795915][   T10]      __sys_sendmsg+0xcd/0x170
[ 1423.795915][   T10]      do_syscall_64+0xc6/0x1e0
[ 1423.795915][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1423.795915][   T10] 
[ 1423.797923][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1423.797923][   T10]      netdev_get_by_index+0x5e/0x80
[ 1423.797923][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1423.797923][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1423.797923][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1423.797923][   T10]      ipv6_add_addr+0x411/0x2000
[ 1423.797923][   T10]      inet6_addr_add+0x30e/0xa40
[ 1423.797923][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1423.797923][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1423.797923][   T10]      netlink_rcv_skb+0x130/0x360
[ 1423.797923][   T10]      netlink_unicast+0x449/0x710
[ 1423.797923][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1423.797923][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1423.797923][   T10]      ___sys_sendmsg+0xee/0x170
[ 1423.797923][   T10]      __sys_sendmsg+0xcd/0x170
[ 1423.797923][   T10]      do_syscall_64+0xc6/0x1e0
[ 1423.797923][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1423.797923][   T10] 
[ 1423.799933][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1423.799933][   T10]      netdev_get_by_index+0x5e/0x80
[ 1423.799933][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1423.799933][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1423.799933][   T10]      ip6_route_add+0x1c/0x140
[ 1423.799933][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1423.799933][   T10]      addrconf_add_dev+0xe2/0x170
[ 1423.799933][   T10]      inet6_addr_add+0x12f/0xa40
[ 1423.799933][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1423.799933][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1423.799933][   T10]      netlink_rcv_skb+0x130/0x360
[ 1423.799933][   T10]      netlink_unicast+0x449/0x710
[ 1423.799933][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1423.799933][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1423.799933][   T10]      ___sys_sendmsg+0xee/0x170
[ 1423.799933][   T10]      __sys_sendmsg+0xcd/0x170
[ 1423.799933][   T10]      do_syscall_64+0xc6/0x1e0
[ 1423.799933][   T10] 
[ 1423.801912][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1423.801912][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1423.801912][   T10]      ipv6_find_idev+0x102/0x170
[ 1423.801912][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1423.801912][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1423.801912][   T10]      netlink_rcv_skb+0x130/0x360
[ 1423.801912][   T10]      netlink_unicast+0x449/0x710
[ 1423.801912][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1423.801912][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1423.801912][   T10]      ___sys_sendmsg+0xee/0x170
[ 1423.801912][   T10]      __sys_sendmsg+0xcd/0x170
[ 1423.801912][   T10]      do_syscall_64+0xc6/0x1e0
[ 1423.801912][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1423.801912][   T10] 
[ 1423.803497][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1423.803497][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1423.803497][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1423.803497][   T10]      ipv6_find_idev+0x102/0x170
[ 1423.803497][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1423.803497][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1423.803497][   T10]      netlink_rcv_skb+0x130/0x360
[ 1423.803497][   T10]      netlink_unicast+0x449/0x710
[ 1423.803497][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1423.803497][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1423.803497][   T10]      ___sys_sendmsg+0xee/0x170
[ 1423.803497][   T10]      __sys_sendmsg+0xcd/0x170
[ 1423.803497][   T10]      do_syscall_64+0xc6/0x1e0
[ 1423.803497][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1423.803497][   T10] 
[ 1423.805219][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1423.805487][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1423.805487][   T10]      dst_init+0x84/0x4a0
[ 1423.805487][   T10]      dst_alloc+0x97/0x150
[ 1423.805487][   T10]      ip6_dst_alloc+0x23/0x90
[ 1423.805487][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1423.805487][   T10]      ip6_pol_route+0x56f/0x840
[ 1423.805487][   T10]      fib6_rule_lookup+0x456/0x630
[ 1423.805487][   T10]      ip6_route_input+0x59c/0xa50
[ 1423.805487][   T10]      ipv6_rcv+0x397/0x810
[ 1423.805487][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1423.805487][   T10]      process_backlog+0x101/0x620
[ 1423.805487][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1423.805487][   T10]      net_rx_action+0x495/0xbe0
[ 1423.805487][   T10]      __do_softirq+0x1b5/0x7f6
[ 1423.805487][   T10] 
[ 1423.807162][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1423.807162][   T10]      netdev_get_by_index+0x5e/0x80
[ 1423.807162][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1423.807162][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1423.807162][   T10]      ip6_route_add+0x1c/0x140
[ 1423.807162][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1423.807162][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1423.807162][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1423.807162][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1423.807162][   T10]      netlink_rcv_skb+0x130/0x360
[ 1423.807162][   T10]      netlink_unicast+0x449/0x710
[ 1423.807162][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1423.807162][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1423.807162][   T10]      ___sys_sendmsg+0xee/0x170
[ 1423.807162][   T10]      __sys_sendmsg+0xcd/0x170
[ 1423.807162][   T10]      do_syscall_64+0xc6/0x1e0
[ 1423.807162][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1423.807162][   T10] 
[ 1423.809196][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1423.809196][   T10]      netdev_get_by_index+0x5e/0x80
[ 1423.809196][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1423.809196][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1423.809196][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1423.809196][   T10]      ipv6_add_addr+0x411/0x2000
[ 1423.809196][   T10]      inet6_addr_add+0x30e/0xa40
[ 1423.809196][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1423.809196][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1423.809196][   T10]      netlink_rcv_skb+0x130/0x360
[ 1423.809196][   T10]      netlink_unicast+0x449/0x710
[ 1423.809196][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1423.809196][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1423.809196][   T10]      ___sys_sendmsg+0xee/0x170
[ 1423.809196][   T10]      __sys_sendmsg+0xcd/0x170
[ 1423.809196][   T10]      do_syscall_64+0xc6/0x1e0
[ 1423.809196][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1423.809196][   T10] 
[ 1423.811228][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1423.811228][   T10]      netdev_get_by_index+0x5e/0x80
[ 1423.811228][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1423.811228][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1423.811228][   T10]      ip6_route_add+0x1c/0x140
[ 1423.811228][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1423.811228][   T10]      addrconf_add_dev+0xe2/0x170
[ 1423.811228][   T10]      inet6_addr_add+0x12f/0xa40
[ 1423.811228][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1423.811228][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1423.811228][   T10]      netlink_rcv_skb+0x130/0x360
[ 1423.811228][   T10]      netlink_unicast+0x449/0x710
[ 1423.811228][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1423.811228][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1423.811228][   T10]      ___sys_sendmsg+0xee/0x170
[ 1423.811228][   T10]      __sys_sendmsg+0xcd/0x170
[ 1423.811228][   T10]      do_syscall_64+0xc6/0x1e0
[ 1423.811228][   T10] 
[ 1423.813252][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1423.813252][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1423.813252][   T10]      ipv6_find_idev+0x102/0x170
[ 1423.813252][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1423.813252][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1423.813252][   T10]      netlink_rcv_skb+0x130/0x360
[ 1423.813252][   T10]      netlink_unicast+0x449/0x710
[ 1423.813252][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1423.813252][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1423.813252][   T10]      ___sys_sendmsg+0xee/0x170
[ 1423.813252][   T10]      __sys_sendmsg+0xcd/0x170
[ 1423.813252][   T10]      do_syscall_64+0xc6/0x1e0
[ 1423.813252][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1423.813252][   T10] 
[ 1423.814823][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1423.814823][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1423.814823][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1423.814823][   T10]      ipv6_find_idev+0x102/0x170
[ 1423.814823][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1423.814823][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1423.814823][   T10]      netlink_rcv_skb+0x130/0x360
[ 1423.814823][   T10]      netlink_unicast+0x449/0x710
[ 1423.814823][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1423.814823][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1423.814823][   T10]      ___sys_sendmsg+0xee/0x170
[ 1423.814823][   T10]      __sys_sendmsg+0xcd/0x170
[ 1423.814823][   T10]      do_syscall_64+0xc6/0x1e0
[ 1423.814823][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1423.814823][   T10] 
[ 1434.057816][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1434.058221][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1434.058221][   T10]      dst_init+0x84/0x4a0
[ 1434.058221][   T10]      dst_alloc+0x97/0x150
[ 1434.058221][   T10]      ip6_dst_alloc+0x23/0x90
[ 1434.058221][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1434.058221][   T10]      ip6_pol_route+0x56f/0x840
[ 1434.058221][   T10]      fib6_rule_lookup+0x456/0x630
[ 1434.058221][   T10]      ip6_route_input+0x59c/0xa50
[ 1434.058221][   T10]      ipv6_rcv+0x397/0x810
[ 1434.058221][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1434.058221][   T10]      process_backlog+0x101/0x620
[ 1434.058221][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1434.058221][   T10]      net_rx_action+0x495/0xbe0
[ 1434.058221][   T10]      __do_softirq+0x1b5/0x7f6
[ 1434.058221][   T10] 
[ 1434.059914][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1434.059914][   T10]      netdev_get_by_index+0x5e/0x80
[ 1434.059914][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1434.059914][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1434.059914][   T10]      ip6_route_add+0x1c/0x140
[ 1434.059914][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1434.059914][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1434.059914][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1434.059914][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1434.059914][   T10]      netlink_rcv_skb+0x130/0x360
[ 1434.059914][   T10]      netlink_unicast+0x449/0x710
[ 1434.059914][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1434.059914][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1434.059914][   T10]      ___sys_sendmsg+0xee/0x170
[ 1434.059914][   T10]      __sys_sendmsg+0xcd/0x170
[ 1434.059914][   T10]      do_syscall_64+0xc6/0x1e0
[ 1434.059914][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1434.059914][   T10] 
[ 1434.061956][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1434.061956][   T10]      netdev_get_by_index+0x5e/0x80
[ 1434.061956][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1434.061956][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1434.061956][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1434.061956][   T10]      ipv6_add_addr+0x411/0x2000
[ 1434.061956][   T10]      inet6_addr_add+0x30e/0xa40
[ 1434.061956][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1434.061956][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1434.061956][   T10]      netlink_rcv_skb+0x130/0x360
[ 1434.061956][   T10]      netlink_unicast+0x449/0x710
[ 1434.061956][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1434.061956][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1434.061956][   T10]      ___sys_sendmsg+0xee/0x170
[ 1434.061956][   T10]      __sys_sendmsg+0xcd/0x170
[ 1434.061956][   T10]      do_syscall_64+0xc6/0x1e0
[ 1434.061956][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1434.061956][   T10] 
[ 1434.063990][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1434.063990][   T10]      netdev_get_by_index+0x5e/0x80
[ 1434.063990][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1434.063990][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1434.063990][   T10]      ip6_route_add+0x1c/0x140
[ 1434.063990][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1434.063990][   T10]      addrconf_add_dev+0xe2/0x170
[ 1434.063990][   T10]      inet6_addr_add+0x12f/0xa40
[ 1434.063990][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1434.063990][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1434.063990][   T10]      netlink_rcv_skb+0x130/0x360
[ 1434.063990][   T10]      netlink_unicast+0x449/0x710
[ 1434.063990][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1434.063990][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1434.063990][   T10]      ___sys_sendmsg+0xee/0x170
[ 1434.063990][   T10]      __sys_sendmsg+0xcd/0x170
[ 1434.063990][   T10]      do_syscall_64+0xc6/0x1e0
[ 1434.063990][   T10] 
[ 1434.066009][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1434.066009][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1434.066009][   T10]      ipv6_find_idev+0x102/0x170
[ 1434.066009][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1434.066009][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1434.066009][   T10]      netlink_rcv_skb+0x130/0x360
[ 1434.066009][   T10]      netlink_unicast+0x449/0x710
[ 1434.066009][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1434.066009][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1434.066009][   T10]      ___sys_sendmsg+0xee/0x170
[ 1434.066009][   T10]      __sys_sendmsg+0xcd/0x170
[ 1434.066009][   T10]      do_syscall_64+0xc6/0x1e0
[ 1434.066009][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1434.066009][   T10] 
[ 1434.067581][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1434.067581][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1434.067581][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1434.067581][   T10]      ipv6_find_idev+0x102/0x170
[ 1434.067581][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1434.067581][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1434.067581][   T10]      netlink_rcv_skb+0x130/0x360
[ 1434.067581][   T10]      netlink_unicast+0x449/0x710
[ 1434.067581][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1434.067581][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1434.067581][   T10]      ___sys_sendmsg+0xee/0x170
[ 1434.067581][   T10]      __sys_sendmsg+0xcd/0x170
[ 1434.067581][   T10]      do_syscall_64+0xc6/0x1e0
[ 1434.067581][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1434.067581][   T10] 
[ 1434.069304][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1434.069555][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1434.069555][   T10]      dst_init+0x84/0x4a0
[ 1434.069555][   T10]      dst_alloc+0x97/0x150
[ 1434.069555][   T10]      ip6_dst_alloc+0x23/0x90
[ 1434.069555][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1434.069555][   T10]      ip6_pol_route+0x56f/0x840
[ 1434.069555][   T10]      fib6_rule_lookup+0x456/0x630
[ 1434.069555][   T10]      ip6_route_input+0x59c/0xa50
[ 1434.069555][   T10]      ipv6_rcv+0x397/0x810
[ 1434.069555][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1434.069555][   T10]      process_backlog+0x101/0x620
[ 1434.069555][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1434.069555][   T10]      net_rx_action+0x495/0xbe0
[ 1434.069555][   T10]      __do_softirq+0x1b5/0x7f6
[ 1434.069555][   T10] 
[ 1434.071223][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1434.071223][   T10]      netdev_get_by_index+0x5e/0x80
[ 1434.071223][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1434.071223][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1434.071223][   T10]      ip6_route_add+0x1c/0x140
[ 1434.071223][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1434.071223][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1434.071223][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1434.071223][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1434.071223][   T10]      netlink_rcv_skb+0x130/0x360
[ 1434.071223][   T10]      netlink_unicast+0x449/0x710
[ 1434.071223][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1434.071223][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1434.071223][   T10]      ___sys_sendmsg+0xee/0x170
[ 1434.071223][   T10]      __sys_sendmsg+0xcd/0x170
[ 1434.071223][   T10]      do_syscall_64+0xc6/0x1e0
[ 1434.071223][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1434.071223][   T10] 
[ 1434.073264][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1434.073264][   T10]      netdev_get_by_index+0x5e/0x80
[ 1434.073264][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1434.073264][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1434.073264][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1434.073264][   T10]      ipv6_add_addr+0x411/0x2000
[ 1434.073264][   T10]      inet6_addr_add+0x30e/0xa40
[ 1434.073264][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1434.073264][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1434.073264][   T10]      netlink_rcv_skb+0x130/0x360
[ 1434.073264][   T10]      netlink_unicast+0x449/0x710
[ 1434.073264][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1434.073264][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1434.073264][   T10]      ___sys_sendmsg+0xee/0x170
[ 1434.073264][   T10]      __sys_sendmsg+0xcd/0x170
[ 1434.073264][   T10]      do_syscall_64+0xc6/0x1e0
[ 1434.073264][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1434.073264][   T10] 
[ 1434.075272][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1434.075272][   T10]      netdev_get_by_index+0x5e/0x80
[ 1434.075272][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1434.075272][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1434.075272][   T10]      ip6_route_add+0x1c/0x140
[ 1434.075272][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1434.075272][   T10]      addrconf_add_dev+0xe2/0x170
[ 1434.075272][   T10]      inet6_addr_add+0x12f/0xa40
[ 1434.075272][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1434.075272][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1434.075272][   T10]      netlink_rcv_skb+0x130/0x360
[ 1434.075272][   T10]      netlink_unicast+0x449/0x710
[ 1434.075272][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1434.075272][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1434.075272][   T10]      ___sys_sendmsg+0xee/0x170
[ 1434.075272][   T10]      __sys_sendmsg+0xcd/0x170
[ 1434.075272][   T10]      do_syscall_64+0xc6/0x1e0
[ 1434.075272][   T10] 
[ 1434.077797][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1434.077797][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1434.077797][   T10]      ipv6_find_idev+0x102/0x170
[ 1434.077797][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1434.077797][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1434.077797][   T10]      netlink_rcv_skb+0x130/0x360
[ 1434.077797][   T10]      netlink_unicast+0x449/0x710
[ 1434.077797][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1434.077797][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1434.077797][   T10]      ___sys_sendmsg+0xee/0x170
[ 1434.077797][   T10]      __sys_sendmsg+0xcd/0x170
[ 1434.077797][   T10]      do_syscall_64+0xc6/0x1e0
[ 1434.077797][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1434.077797][   T10] 
[ 1434.079761][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1434.079761][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1434.079761][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1434.079761][   T10]      ipv6_find_idev+0x102/0x170
[ 1434.079761][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1434.079761][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1434.079761][   T10]      netlink_rcv_skb+0x130/0x360
[ 1434.079761][   T10]      netlink_unicast+0x449/0x710
[ 1434.079761][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1434.079761][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1434.079761][   T10]      ___sys_sendmsg+0xee/0x170
[ 1434.079761][   T10]      __sys_sendmsg+0xcd/0x170
[ 1434.079761][   T10]      do_syscall_64+0xc6/0x1e0
[ 1434.079761][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1434.079761][   T10] 
[ 1444.177823][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1444.178306][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1444.178306][   T10]      dst_init+0x84/0x4a0
[ 1444.178306][   T10]      dst_alloc+0x97/0x150
[ 1444.178306][   T10]      ip6_dst_alloc+0x23/0x90
[ 1444.178306][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1444.178306][   T10]      ip6_pol_route+0x56f/0x840
[ 1444.178306][   T10]      fib6_rule_lookup+0x456/0x630
[ 1444.178306][   T10]      ip6_route_input+0x59c/0xa50
[ 1444.178306][   T10]      ipv6_rcv+0x397/0x810
[ 1444.178306][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1444.178306][   T10]      process_backlog+0x101/0x620
[ 1444.178306][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1444.178306][   T10]      net_rx_action+0x495/0xbe0
[ 1444.178306][   T10]      __do_softirq+0x1b5/0x7f6
[ 1444.178306][   T10] 
[ 1444.179994][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1444.179994][   T10]      netdev_get_by_index+0x5e/0x80
[ 1444.179994][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1444.179994][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1444.179994][   T10]      ip6_route_add+0x1c/0x140
[ 1444.179994][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1444.179994][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1444.179994][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1444.179994][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1444.179994][   T10]      netlink_rcv_skb+0x130/0x360
[ 1444.179994][   T10]      netlink_unicast+0x449/0x710
[ 1444.179994][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1444.179994][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1444.179994][   T10]      ___sys_sendmsg+0xee/0x170
[ 1444.179994][   T10]      __sys_sendmsg+0xcd/0x170
[ 1444.179994][   T10]      do_syscall_64+0xc6/0x1e0
[ 1444.179994][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1444.179994][   T10] 
[ 1444.182004][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1444.182004][   T10]      netdev_get_by_index+0x5e/0x80
[ 1444.182004][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1444.182004][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1444.182004][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1444.182004][   T10]      ipv6_add_addr+0x411/0x2000
[ 1444.182004][   T10]      inet6_addr_add+0x30e/0xa40
[ 1444.182004][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1444.182004][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1444.182004][   T10]      netlink_rcv_skb+0x130/0x360
[ 1444.182004][   T10]      netlink_unicast+0x449/0x710
[ 1444.182004][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1444.182004][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1444.182004][   T10]      ___sys_sendmsg+0xee/0x170
[ 1444.182004][   T10]      __sys_sendmsg+0xcd/0x170
[ 1444.182004][   T10]      do_syscall_64+0xc6/0x1e0
[ 1444.182004][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1444.182004][   T10] 
[ 1444.184008][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1444.184008][   T10]      netdev_get_by_index+0x5e/0x80
[ 1444.184008][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1444.184008][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1444.184008][   T10]      ip6_route_add+0x1c/0x140
[ 1444.184008][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1444.184008][   T10]      addrconf_add_dev+0xe2/0x170
[ 1444.184008][   T10]      inet6_addr_add+0x12f/0xa40
[ 1444.184008][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1444.184008][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1444.184008][   T10]      netlink_rcv_skb+0x130/0x360
[ 1444.184008][   T10]      netlink_unicast+0x449/0x710
[ 1444.184008][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1444.184008][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1444.184008][   T10]      ___sys_sendmsg+0xee/0x170
[ 1444.184008][   T10]      __sys_sendmsg+0xcd/0x170
[ 1444.184008][   T10]      do_syscall_64+0xc6/0x1e0
[ 1444.184008][   T10] 
[ 1444.185994][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1444.185994][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1444.185994][   T10]      ipv6_find_idev+0x102/0x170
[ 1444.185994][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1444.185994][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1444.185994][   T10]      netlink_rcv_skb+0x130/0x360
[ 1444.185994][   T10]      netlink_unicast+0x449/0x710
[ 1444.185994][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1444.185994][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1444.185994][   T10]      ___sys_sendmsg+0xee/0x170
[ 1444.185994][   T10]      __sys_sendmsg+0xcd/0x170
[ 1444.185994][   T10]      do_syscall_64+0xc6/0x1e0
[ 1444.185994][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1444.185994][   T10] 
[ 1444.187647][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1444.187647][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1444.187647][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1444.187647][   T10]      ipv6_find_idev+0x102/0x170
[ 1444.187647][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1444.187647][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1444.187647][   T10]      netlink_rcv_skb+0x130/0x360
[ 1444.187647][   T10]      netlink_unicast+0x449/0x710
[ 1444.187647][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1444.187647][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1444.187647][   T10]      ___sys_sendmsg+0xee/0x170
[ 1444.187647][   T10]      __sys_sendmsg+0xcd/0x170
[ 1444.187647][   T10]      do_syscall_64+0xc6/0x1e0
[ 1444.187647][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1444.187647][   T10] 
[ 1444.189371][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1444.189615][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1444.189615][   T10]      dst_init+0x84/0x4a0
[ 1444.189615][   T10]      dst_alloc+0x97/0x150
[ 1444.189615][   T10]      ip6_dst_alloc+0x23/0x90
[ 1444.189615][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1444.189615][   T10]      ip6_pol_route+0x56f/0x840
[ 1444.189615][   T10]      fib6_rule_lookup+0x456/0x630
[ 1444.189615][   T10]      ip6_route_input+0x59c/0xa50
[ 1444.189615][   T10]      ipv6_rcv+0x397/0x810
[ 1444.189615][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1444.189615][   T10]      process_backlog+0x101/0x620
[ 1444.189615][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1444.189615][   T10]      net_rx_action+0x495/0xbe0
[ 1444.189615][   T10]      __do_softirq+0x1b5/0x7f6
[ 1444.189615][   T10] 
[ 1444.191263][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1444.191263][   T10]      netdev_get_by_index+0x5e/0x80
[ 1444.191263][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1444.191263][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1444.191263][   T10]      ip6_route_add+0x1c/0x140
[ 1444.191263][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1444.191263][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1444.191263][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1444.191263][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1444.191263][   T10]      netlink_rcv_skb+0x130/0x360
[ 1444.191263][   T10]      netlink_unicast+0x449/0x710
[ 1444.191263][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1444.191263][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1444.191263][   T10]      ___sys_sendmsg+0xee/0x170
[ 1444.191263][   T10]      __sys_sendmsg+0xcd/0x170
[ 1444.191263][   T10]      do_syscall_64+0xc6/0x1e0
[ 1444.191263][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1444.191263][   T10] 
[ 1444.193275][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1444.193275][   T10]      netdev_get_by_index+0x5e/0x80
[ 1444.193275][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1444.193275][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1444.193275][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1444.193275][   T10]      ipv6_add_addr+0x411/0x2000
[ 1444.193275][   T10]      inet6_addr_add+0x30e/0xa40
[ 1444.193275][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1444.193275][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1444.193275][   T10]      netlink_rcv_skb+0x130/0x360
[ 1444.193275][   T10]      netlink_unicast+0x449/0x710
[ 1444.193275][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1444.193275][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1444.193275][   T10]      ___sys_sendmsg+0xee/0x170
[ 1444.193275][   T10]      __sys_sendmsg+0xcd/0x170
[ 1444.193275][   T10]      do_syscall_64+0xc6/0x1e0
[ 1444.193275][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1444.193275][   T10] 
[ 1444.195278][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1444.195278][   T10]      netdev_get_by_index+0x5e/0x80
[ 1444.195278][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1444.195278][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1444.195278][   T10]      ip6_route_add+0x1c/0x140
[ 1444.195278][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1444.195278][   T10]      addrconf_add_dev+0xe2/0x170
[ 1444.195278][   T10]      inet6_addr_add+0x12f/0xa40
[ 1444.195278][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1444.195278][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1444.195278][   T10]      netlink_rcv_skb+0x130/0x360
[ 1444.195278][   T10]      netlink_unicast+0x449/0x710
[ 1444.195278][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1444.195278][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1444.195278][   T10]      ___sys_sendmsg+0xee/0x170
[ 1444.195278][   T10]      __sys_sendmsg+0xcd/0x170
[ 1444.195278][   T10]      do_syscall_64+0xc6/0x1e0
[ 1444.195278][   T10] 
[ 1444.197261][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1444.197261][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1444.197261][   T10]      ipv6_find_idev+0x102/0x170
[ 1444.197261][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1444.197261][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1444.197261][   T10]      netlink_rcv_skb+0x130/0x360
[ 1444.197261][   T10]      netlink_unicast+0x449/0x710
[ 1444.197261][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1444.197261][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1444.197261][   T10]      ___sys_sendmsg+0xee/0x170
[ 1444.197261][   T10]      __sys_sendmsg+0xcd/0x170
[ 1444.197261][   T10]      do_syscall_64+0xc6/0x1e0
[ 1444.197261][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1444.197261][   T10] 
[ 1444.198819][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1444.198819][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1444.198819][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1444.198819][   T10]      ipv6_find_idev+0x102/0x170
[ 1444.198819][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1444.198819][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1444.198819][   T10]      netlink_rcv_skb+0x130/0x360
[ 1444.198819][   T10]      netlink_unicast+0x449/0x710
[ 1444.198819][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1444.198819][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1444.198819][   T10]      ___sys_sendmsg+0xee/0x170
[ 1444.198819][   T10]      __sys_sendmsg+0xcd/0x170
[ 1444.198819][   T10]      do_syscall_64+0xc6/0x1e0
[ 1444.198819][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1444.198819][   T10] 
[ 1454.441783][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1454.442239][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1454.442239][   T10]      dst_init+0x84/0x4a0
[ 1454.442239][   T10]      dst_alloc+0x97/0x150
[ 1454.442239][   T10]      ip6_dst_alloc+0x23/0x90
[ 1454.442239][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1454.442239][   T10]      ip6_pol_route+0x56f/0x840
[ 1454.442239][   T10]      fib6_rule_lookup+0x456/0x630
[ 1454.442239][   T10]      ip6_route_input+0x59c/0xa50
[ 1454.442239][   T10]      ipv6_rcv+0x397/0x810
[ 1454.442239][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1454.442239][   T10]      process_backlog+0x101/0x620
[ 1454.442239][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1454.442239][   T10]      net_rx_action+0x495/0xbe0
[ 1454.442239][   T10]      __do_softirq+0x1b5/0x7f6
[ 1454.442239][   T10] 
[ 1454.443927][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1454.443927][   T10]      netdev_get_by_index+0x5e/0x80
[ 1454.443927][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1454.443927][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1454.443927][   T10]      ip6_route_add+0x1c/0x140
[ 1454.443927][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1454.443927][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1454.443927][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1454.443927][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1454.443927][   T10]      netlink_rcv_skb+0x130/0x360
[ 1454.443927][   T10]      netlink_unicast+0x449/0x710
[ 1454.443927][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1454.443927][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1454.443927][   T10]      ___sys_sendmsg+0xee/0x170
[ 1454.443927][   T10]      __sys_sendmsg+0xcd/0x170
[ 1454.443927][   T10]      do_syscall_64+0xc6/0x1e0
[ 1454.443927][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1454.443927][   T10] 
[ 1454.446324][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1454.446324][   T10]      netdev_get_by_index+0x5e/0x80
[ 1454.446324][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1454.446324][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1454.446324][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1454.446324][   T10]      ipv6_add_addr+0x411/0x2000
[ 1454.446324][   T10]      inet6_addr_add+0x30e/0xa40
[ 1454.446324][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1454.446324][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1454.446324][   T10]      netlink_rcv_skb+0x130/0x360
[ 1454.446324][   T10]      netlink_unicast+0x449/0x710
[ 1454.446324][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1454.446324][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1454.446324][   T10]      ___sys_sendmsg+0xee/0x170
[ 1454.446324][   T10]      __sys_sendmsg+0xcd/0x170
[ 1454.446324][   T10]      do_syscall_64+0xc6/0x1e0
[ 1454.446324][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1454.446324][   T10] 
[ 1454.448341][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1454.448341][   T10]      netdev_get_by_index+0x5e/0x80
[ 1454.448341][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1454.448341][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1454.448341][   T10]      ip6_route_add+0x1c/0x140
[ 1454.448341][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1454.448341][   T10]      addrconf_add_dev+0xe2/0x170
[ 1454.448341][   T10]      inet6_addr_add+0x12f/0xa40
[ 1454.448341][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1454.448341][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1454.448341][   T10]      netlink_rcv_skb+0x130/0x360
[ 1454.448341][   T10]      netlink_unicast+0x449/0x710
[ 1454.448341][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1454.448341][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1454.448341][   T10]      ___sys_sendmsg+0xee/0x170
[ 1454.448341][   T10]      __sys_sendmsg+0xcd/0x170
[ 1454.448341][   T10]      do_syscall_64+0xc6/0x1e0
[ 1454.448341][   T10] 
[ 1454.450344][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1454.450344][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1454.450344][   T10]      ipv6_find_idev+0x102/0x170
[ 1454.450344][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1454.450344][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1454.450344][   T10]      netlink_rcv_skb+0x130/0x360
[ 1454.450344][   T10]      netlink_unicast+0x449/0x710
[ 1454.450344][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1454.450344][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1454.450344][   T10]      ___sys_sendmsg+0xee/0x170
[ 1454.450344][   T10]      __sys_sendmsg+0xcd/0x170
[ 1454.450344][   T10]      do_syscall_64+0xc6/0x1e0
[ 1454.450344][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1454.450344][   T10] 
[ 1454.451895][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1454.451895][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1454.451895][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1454.451895][   T10]      ipv6_find_idev+0x102/0x170
[ 1454.451895][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1454.451895][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1454.451895][   T10]      netlink_rcv_skb+0x130/0x360
[ 1454.451895][   T10]      netlink_unicast+0x449/0x710
[ 1454.451895][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1454.451895][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1454.451895][   T10]      ___sys_sendmsg+0xee/0x170
[ 1454.451895][   T10]      __sys_sendmsg+0xcd/0x170
[ 1454.451895][   T10]      do_syscall_64+0xc6/0x1e0
[ 1454.451895][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1454.451895][   T10] 
[ 1454.453621][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1454.453884][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1454.453884][   T10]      dst_init+0x84/0x4a0
[ 1454.453884][   T10]      dst_alloc+0x97/0x150
[ 1454.453884][   T10]      ip6_dst_alloc+0x23/0x90
[ 1454.453884][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1454.453884][   T10]      ip6_pol_route+0x56f/0x840
[ 1454.453884][   T10]      fib6_rule_lookup+0x456/0x630
[ 1454.453884][   T10]      ip6_route_input+0x59c/0xa50
[ 1454.453884][   T10]      ipv6_rcv+0x397/0x810
[ 1454.453884][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1454.453884][   T10]      process_backlog+0x101/0x620
[ 1454.453884][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1454.453884][   T10]      net_rx_action+0x495/0xbe0
[ 1454.453884][   T10]      __do_softirq+0x1b5/0x7f6
[ 1454.453884][   T10] 
[ 1454.455551][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1454.455551][   T10]      netdev_get_by_index+0x5e/0x80
[ 1454.455551][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1454.455551][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1454.455551][   T10]      ip6_route_add+0x1c/0x140
[ 1454.455551][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1454.455551][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1454.455551][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1454.455551][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1454.455551][   T10]      netlink_rcv_skb+0x130/0x360
[ 1454.455551][   T10]      netlink_unicast+0x449/0x710
[ 1454.455551][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1454.455551][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1454.455551][   T10]      ___sys_sendmsg+0xee/0x170
[ 1454.455551][   T10]      __sys_sendmsg+0xcd/0x170
[ 1454.455551][   T10]      do_syscall_64+0xc6/0x1e0
[ 1454.455551][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1454.455551][   T10] 
[ 1454.458307][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1454.458307][   T10]      netdev_get_by_index+0x5e/0x80
[ 1454.458307][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1454.458307][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1454.458307][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1454.458307][   T10]      ipv6_add_addr+0x411/0x2000
[ 1454.458307][   T10]      inet6_addr_add+0x30e/0xa40
[ 1454.458307][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1454.458307][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1454.458307][   T10]      netlink_rcv_skb+0x130/0x360
[ 1454.458307][   T10]      netlink_unicast+0x449/0x710
[ 1454.458307][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1454.458307][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1454.458307][   T10]      ___sys_sendmsg+0xee/0x170
[ 1454.458307][   T10]      __sys_sendmsg+0xcd/0x170
[ 1454.458307][   T10]      do_syscall_64+0xc6/0x1e0
[ 1454.458307][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1454.458307][   T10] 
[ 1454.461502][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1454.461502][   T10]      netdev_get_by_index+0x5e/0x80
[ 1454.461502][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1454.461502][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1454.461502][   T10]      ip6_route_add+0x1c/0x140
[ 1454.461502][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1454.461502][   T10]      addrconf_add_dev+0xe2/0x170
[ 1454.461502][   T10]      inet6_addr_add+0x12f/0xa40
[ 1454.461502][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1454.461502][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1454.461502][   T10]      netlink_rcv_skb+0x130/0x360
[ 1454.461502][   T10]      netlink_unicast+0x449/0x710
[ 1454.461502][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1454.461502][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1454.461502][   T10]      ___sys_sendmsg+0xee/0x170
[ 1454.461502][   T10]      __sys_sendmsg+0xcd/0x170
[ 1454.461502][   T10]      do_syscall_64+0xc6/0x1e0
[ 1454.461502][   T10] 
[ 1454.463638][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1454.463638][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1454.463638][   T10]      ipv6_find_idev+0x102/0x170
[ 1454.463638][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1454.463638][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1454.463638][   T10]      netlink_rcv_skb+0x130/0x360
[ 1454.463638][   T10]      netlink_unicast+0x449/0x710
[ 1454.463638][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1454.463638][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1454.463638][   T10]      ___sys_sendmsg+0xee/0x170
[ 1454.463638][   T10]      __sys_sendmsg+0xcd/0x170
[ 1454.463638][   T10]      do_syscall_64+0xc6/0x1e0
[ 1454.463638][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1454.463638][   T10] 
[ 1454.465255][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1454.465255][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1454.465255][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1454.465255][   T10]      ipv6_find_idev+0x102/0x170
[ 1454.465255][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1454.465255][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1454.465255][   T10]      netlink_rcv_skb+0x130/0x360
[ 1454.465255][   T10]      netlink_unicast+0x449/0x710
[ 1454.465255][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1454.465255][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1454.465255][   T10]      ___sys_sendmsg+0xee/0x170
[ 1454.465255][   T10]      __sys_sendmsg+0xcd/0x170
[ 1454.465255][   T10]      do_syscall_64+0xc6/0x1e0
[ 1454.465255][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1454.465255][   T10] 
[ 1464.705747][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1464.706157][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1464.706157][   T10]      dst_init+0x84/0x4a0
[ 1464.706157][   T10]      dst_alloc+0x97/0x150
[ 1464.706157][   T10]      ip6_dst_alloc+0x23/0x90
[ 1464.706157][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1464.706157][   T10]      ip6_pol_route+0x56f/0x840
[ 1464.706157][   T10]      fib6_rule_lookup+0x456/0x630
[ 1464.706157][   T10]      ip6_route_input+0x59c/0xa50
[ 1464.706157][   T10]      ipv6_rcv+0x397/0x810
[ 1464.706157][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1464.706157][   T10]      process_backlog+0x101/0x620
[ 1464.706157][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1464.706157][   T10]      net_rx_action+0x495/0xbe0
[ 1464.706157][   T10]      __do_softirq+0x1b5/0x7f6
[ 1464.706157][   T10] 
[ 1464.707863][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1464.707863][   T10]      netdev_get_by_index+0x5e/0x80
[ 1464.707863][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1464.707863][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1464.707863][   T10]      ip6_route_add+0x1c/0x140
[ 1464.707863][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1464.707863][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1464.707863][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1464.707863][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1464.707863][   T10]      netlink_rcv_skb+0x130/0x360
[ 1464.707863][   T10]      netlink_unicast+0x449/0x710
[ 1464.707863][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1464.707863][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1464.707863][   T10]      ___sys_sendmsg+0xee/0x170
[ 1464.707863][   T10]      __sys_sendmsg+0xcd/0x170
[ 1464.707863][   T10]      do_syscall_64+0xc6/0x1e0
[ 1464.707863][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1464.707863][   T10] 
[ 1464.710276][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1464.710276][   T10]      netdev_get_by_index+0x5e/0x80
[ 1464.710276][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1464.710276][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1464.710276][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1464.710276][   T10]      ipv6_add_addr+0x411/0x2000
[ 1464.710276][   T10]      inet6_addr_add+0x30e/0xa40
[ 1464.710276][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1464.710276][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1464.710276][   T10]      netlink_rcv_skb+0x130/0x360
[ 1464.710276][   T10]      netlink_unicast+0x449/0x710
[ 1464.710276][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1464.710276][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1464.710276][   T10]      ___sys_sendmsg+0xee/0x170
[ 1464.710276][   T10]      __sys_sendmsg+0xcd/0x170
[ 1464.710276][   T10]      do_syscall_64+0xc6/0x1e0
[ 1464.710276][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1464.710276][   T10] 
[ 1464.712281][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1464.712281][   T10]      netdev_get_by_index+0x5e/0x80
[ 1464.712281][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1464.712281][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1464.712281][   T10]      ip6_route_add+0x1c/0x140
[ 1464.712281][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1464.712281][   T10]      addrconf_add_dev+0xe2/0x170
[ 1464.712281][   T10]      inet6_addr_add+0x12f/0xa40
[ 1464.712281][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1464.712281][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1464.712281][   T10]      netlink_rcv_skb+0x130/0x360
[ 1464.712281][   T10]      netlink_unicast+0x449/0x710
[ 1464.712281][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1464.712281][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1464.712281][   T10]      ___sys_sendmsg+0xee/0x170
[ 1464.712281][   T10]      __sys_sendmsg+0xcd/0x170
[ 1464.712281][   T10]      do_syscall_64+0xc6/0x1e0
[ 1464.712281][   T10] 
[ 1464.714246][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1464.714246][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1464.714246][   T10]      ipv6_find_idev+0x102/0x170
[ 1464.714246][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1464.714246][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1464.714246][   T10]      netlink_rcv_skb+0x130/0x360
[ 1464.714246][   T10]      netlink_unicast+0x449/0x710
[ 1464.714246][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1464.714246][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1464.714246][   T10]      ___sys_sendmsg+0xee/0x170
[ 1464.714246][   T10]      __sys_sendmsg+0xcd/0x170
[ 1464.714246][   T10]      do_syscall_64+0xc6/0x1e0
[ 1464.714246][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1464.714246][   T10] 
[ 1464.715808][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1464.715808][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1464.715808][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1464.715808][   T10]      ipv6_find_idev+0x102/0x170
[ 1464.715808][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1464.715808][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1464.715808][   T10]      netlink_rcv_skb+0x130/0x360
[ 1464.715808][   T10]      netlink_unicast+0x449/0x710
[ 1464.715808][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1464.715808][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1464.715808][   T10]      ___sys_sendmsg+0xee/0x170
[ 1464.715808][   T10]      __sys_sendmsg+0xcd/0x170
[ 1464.715808][   T10]      do_syscall_64+0xc6/0x1e0
[ 1464.715808][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1464.715808][   T10] 
[ 1464.717507][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1464.717858][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1464.717858][   T10]      dst_init+0x84/0x4a0
[ 1464.717858][   T10]      dst_alloc+0x97/0x150
[ 1464.717858][   T10]      ip6_dst_alloc+0x23/0x90
[ 1464.717858][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1464.717858][   T10]      ip6_pol_route+0x56f/0x840
[ 1464.717858][   T10]      fib6_rule_lookup+0x456/0x630
[ 1464.717858][   T10]      ip6_route_input+0x59c/0xa50
[ 1464.717858][   T10]      ipv6_rcv+0x397/0x810
[ 1464.717858][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1464.717858][   T10]      process_backlog+0x101/0x620
[ 1464.717858][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1464.717858][   T10]      net_rx_action+0x495/0xbe0
[ 1464.717858][   T10]      __do_softirq+0x1b5/0x7f6
[ 1464.717858][   T10] 
[ 1464.719508][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1464.719508][   T10]      netdev_get_by_index+0x5e/0x80
[ 1464.719508][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1464.719508][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1464.719508][   T10]      ip6_route_add+0x1c/0x140
[ 1464.719508][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1464.719508][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1464.719508][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1464.719508][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1464.719508][   T10]      netlink_rcv_skb+0x130/0x360
[ 1464.719508][   T10]      netlink_unicast+0x449/0x710
[ 1464.719508][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1464.719508][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1464.719508][   T10]      ___sys_sendmsg+0xee/0x170
[ 1464.719508][   T10]      __sys_sendmsg+0xcd/0x170
[ 1464.719508][   T10]      do_syscall_64+0xc6/0x1e0
[ 1464.719508][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1464.719508][   T10] 
[ 1464.721509][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1464.721509][   T10]      netdev_get_by_index+0x5e/0x80
[ 1464.721509][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1464.721509][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1464.721509][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1464.721509][   T10]      ipv6_add_addr+0x411/0x2000
[ 1464.721509][   T10]      inet6_addr_add+0x30e/0xa40
[ 1464.721509][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1464.721509][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1464.721509][   T10]      netlink_rcv_skb+0x130/0x360
[ 1464.721509][   T10]      netlink_unicast+0x449/0x710
[ 1464.721509][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1464.721509][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1464.721509][   T10]      ___sys_sendmsg+0xee/0x170
[ 1464.721509][   T10]      __sys_sendmsg+0xcd/0x170
[ 1464.721509][   T10]      do_syscall_64+0xc6/0x1e0
[ 1464.721509][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1464.721509][   T10] 
[ 1464.723504][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1464.723504][   T10]      netdev_get_by_index+0x5e/0x80
[ 1464.723504][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1464.723504][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1464.723504][   T10]      ip6_route_add+0x1c/0x140
[ 1464.723504][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1464.723504][   T10]      addrconf_add_dev+0xe2/0x170
[ 1464.723504][   T10]      inet6_addr_add+0x12f/0xa40
[ 1464.723504][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1464.723504][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1464.723504][   T10]      netlink_rcv_skb+0x130/0x360
[ 1464.723504][   T10]      netlink_unicast+0x449/0x710
[ 1464.723504][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1464.723504][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1464.723504][   T10]      ___sys_sendmsg+0xee/0x170
[ 1464.723504][   T10]      __sys_sendmsg+0xcd/0x170
[ 1464.723504][   T10]      do_syscall_64+0xc6/0x1e0
[ 1464.723504][   T10] 
[ 1464.725471][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1464.725471][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1464.725471][   T10]      ipv6_find_idev+0x102/0x170
[ 1464.725471][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1464.725471][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1464.725471][   T10]      netlink_rcv_skb+0x130/0x360
[ 1464.725471][   T10]      netlink_unicast+0x449/0x710
[ 1464.725471][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1464.725471][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1464.725471][   T10]      ___sys_sendmsg+0xee/0x170
[ 1464.725471][   T10]      __sys_sendmsg+0xcd/0x170
[ 1464.725471][   T10]      do_syscall_64+0xc6/0x1e0
[ 1464.725471][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1464.725471][   T10] 
[ 1464.727006][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1464.727006][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1464.727006][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1464.727006][   T10]      ipv6_find_idev+0x102/0x170
[ 1464.727006][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1464.727006][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1464.727006][   T10]      netlink_rcv_skb+0x130/0x360
[ 1464.727006][   T10]      netlink_unicast+0x449/0x710
[ 1464.727006][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1464.727006][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1464.727006][   T10]      ___sys_sendmsg+0xee/0x170
[ 1464.727006][   T10]      __sys_sendmsg+0xcd/0x170
[ 1464.727006][   T10]      do_syscall_64+0xc6/0x1e0
[ 1464.727006][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1464.727006][   T10] 
[ 1474.969758][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1474.970203][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1474.970203][   T10]      dst_init+0x84/0x4a0
[ 1474.970203][   T10]      dst_alloc+0x97/0x150
[ 1474.970203][   T10]      ip6_dst_alloc+0x23/0x90
[ 1474.970203][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1474.970203][   T10]      ip6_pol_route+0x56f/0x840
[ 1474.970203][   T10]      fib6_rule_lookup+0x456/0x630
[ 1474.970203][   T10]      ip6_route_input+0x59c/0xa50
[ 1474.970203][   T10]      ipv6_rcv+0x397/0x810
[ 1474.970203][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1474.970203][   T10]      process_backlog+0x101/0x620
[ 1474.970203][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1474.970203][   T10]      net_rx_action+0x495/0xbe0
[ 1474.970203][   T10]      __do_softirq+0x1b5/0x7f6
[ 1474.970203][   T10] 
[ 1474.971928][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1474.971928][   T10]      netdev_get_by_index+0x5e/0x80
[ 1474.971928][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1474.971928][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1474.971928][   T10]      ip6_route_add+0x1c/0x140
[ 1474.971928][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1474.971928][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1474.971928][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1474.971928][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1474.971928][   T10]      netlink_rcv_skb+0x130/0x360
[ 1474.971928][   T10]      netlink_unicast+0x449/0x710
[ 1474.971928][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1474.971928][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1474.971928][   T10]      ___sys_sendmsg+0xee/0x170
[ 1474.971928][   T10]      __sys_sendmsg+0xcd/0x170
[ 1474.971928][   T10]      do_syscall_64+0xc6/0x1e0
[ 1474.971928][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1474.971928][   T10] 
[ 1474.974074][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1474.974074][   T10]      netdev_get_by_index+0x5e/0x80
[ 1474.974074][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1474.974074][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1474.974074][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1474.974074][   T10]      ipv6_add_addr+0x411/0x2000
[ 1474.974074][   T10]      inet6_addr_add+0x30e/0xa40
[ 1474.974074][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1474.974074][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1474.974074][   T10]      netlink_rcv_skb+0x130/0x360
[ 1474.974074][   T10]      netlink_unicast+0x449/0x710
[ 1474.974074][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1474.974074][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1474.974074][   T10]      ___sys_sendmsg+0xee/0x170
[ 1474.974074][   T10]      __sys_sendmsg+0xcd/0x170
[ 1474.974074][   T10]      do_syscall_64+0xc6/0x1e0
[ 1474.974074][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1474.974074][   T10] 
[ 1474.976117][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1474.976117][   T10]      netdev_get_by_index+0x5e/0x80
[ 1474.976117][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1474.976117][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1474.976117][   T10]      ip6_route_add+0x1c/0x140
[ 1474.976117][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1474.976117][   T10]      addrconf_add_dev+0xe2/0x170
[ 1474.976117][   T10]      inet6_addr_add+0x12f/0xa40
[ 1474.976117][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1474.976117][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1474.976117][   T10]      netlink_rcv_skb+0x130/0x360
[ 1474.976117][   T10]      netlink_unicast+0x449/0x710
[ 1474.976117][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1474.976117][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1474.976117][   T10]      ___sys_sendmsg+0xee/0x170
[ 1474.976117][   T10]      __sys_sendmsg+0xcd/0x170
[ 1474.976117][   T10]      do_syscall_64+0xc6/0x1e0
[ 1474.976117][   T10] 
[ 1474.978112][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1474.978112][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1474.978112][   T10]      ipv6_find_idev+0x102/0x170
[ 1474.978112][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1474.978112][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1474.978112][   T10]      netlink_rcv_skb+0x130/0x360
[ 1474.978112][   T10]      netlink_unicast+0x449/0x710
[ 1474.978112][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1474.978112][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1474.978112][   T10]      ___sys_sendmsg+0xee/0x170
[ 1474.978112][   T10]      __sys_sendmsg+0xcd/0x170
[ 1474.978112][   T10]      do_syscall_64+0xc6/0x1e0
[ 1474.978112][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1474.978112][   T10] 
[ 1474.979667][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1474.979667][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1474.979667][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1474.979667][   T10]      ipv6_find_idev+0x102/0x170
[ 1474.979667][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1474.979667][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1474.979667][   T10]      netlink_rcv_skb+0x130/0x360
[ 1474.979667][   T10]      netlink_unicast+0x449/0x710
[ 1474.979667][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1474.979667][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1474.979667][   T10]      ___sys_sendmsg+0xee/0x170
[ 1474.979667][   T10]      __sys_sendmsg+0xcd/0x170
[ 1474.979667][   T10]      do_syscall_64+0xc6/0x1e0
[ 1474.979667][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1474.979667][   T10] 
[ 1474.981367][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1474.981626][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1474.981626][   T10]      dst_init+0x84/0x4a0
[ 1474.981626][   T10]      dst_alloc+0x97/0x150
[ 1474.981626][   T10]      ip6_dst_alloc+0x23/0x90
[ 1474.981626][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1474.981626][   T10]      ip6_pol_route+0x56f/0x840
[ 1474.981626][   T10]      fib6_rule_lookup+0x456/0x630
[ 1474.981626][   T10]      ip6_route_input+0x59c/0xa50
[ 1474.981626][   T10]      ipv6_rcv+0x397/0x810
[ 1474.981626][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1474.981626][   T10]      process_backlog+0x101/0x620
[ 1474.981626][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1474.981626][   T10]      net_rx_action+0x495/0xbe0
[ 1474.981626][   T10]      __do_softirq+0x1b5/0x7f6
[ 1474.981626][   T10] 
[ 1474.983268][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1474.983268][   T10]      netdev_get_by_index+0x5e/0x80
[ 1474.983268][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1474.983268][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1474.983268][   T10]      ip6_route_add+0x1c/0x140
[ 1474.983268][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1474.983268][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1474.983268][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1474.983268][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1474.983268][   T10]      netlink_rcv_skb+0x130/0x360
[ 1474.983268][   T10]      netlink_unicast+0x449/0x710
[ 1474.983268][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1474.983268][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1474.983268][   T10]      ___sys_sendmsg+0xee/0x170
[ 1474.983268][   T10]      __sys_sendmsg+0xcd/0x170
[ 1474.983268][   T10]      do_syscall_64+0xc6/0x1e0
[ 1474.983268][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1474.983268][   T10] 
[ 1474.985275][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1474.985275][   T10]      netdev_get_by_index+0x5e/0x80
[ 1474.985275][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1474.985275][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1474.985275][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1474.985275][   T10]      ipv6_add_addr+0x411/0x2000
[ 1474.985275][   T10]      inet6_addr_add+0x30e/0xa40
[ 1474.985275][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1474.985275][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1474.985275][   T10]      netlink_rcv_skb+0x130/0x360
[ 1474.985275][   T10]      netlink_unicast+0x449/0x710
[ 1474.985275][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1474.985275][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1474.985275][   T10]      ___sys_sendmsg+0xee/0x170
[ 1474.985275][   T10]      __sys_sendmsg+0xcd/0x170
[ 1474.985275][   T10]      do_syscall_64+0xc6/0x1e0
[ 1474.985275][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1474.985275][   T10] 
[ 1474.987267][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1474.987267][   T10]      netdev_get_by_index+0x5e/0x80
[ 1474.987267][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1474.987267][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1474.987267][   T10]      ip6_route_add+0x1c/0x140
[ 1474.987267][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1474.987267][   T10]      addrconf_add_dev+0xe2/0x170
[ 1474.987267][   T10]      inet6_addr_add+0x12f/0xa40
[ 1474.987267][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1474.987267][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1474.987267][   T10]      netlink_rcv_skb+0x130/0x360
[ 1474.987267][   T10]      netlink_unicast+0x449/0x710
[ 1474.987267][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1474.987267][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1474.987267][   T10]      ___sys_sendmsg+0xee/0x170
[ 1474.987267][   T10]      __sys_sendmsg+0xcd/0x170
[ 1474.987267][   T10]      do_syscall_64+0xc6/0x1e0
[ 1474.987267][   T10] 
[ 1474.989222][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1474.989222][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1474.989222][   T10]      ipv6_find_idev+0x102/0x170
[ 1474.989222][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1474.989222][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1474.989222][   T10]      netlink_rcv_skb+0x130/0x360
[ 1474.989222][   T10]      netlink_unicast+0x449/0x710
[ 1474.989222][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1474.989222][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1474.989222][   T10]      ___sys_sendmsg+0xee/0x170
[ 1474.989222][   T10]      __sys_sendmsg+0xcd/0x170
[ 1474.989222][   T10]      do_syscall_64+0xc6/0x1e0
[ 1474.989222][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1474.989222][   T10] 
[ 1474.990758][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1474.990758][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1474.990758][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1474.990758][   T10]      ipv6_find_idev+0x102/0x170
[ 1474.990758][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1474.990758][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1474.990758][   T10]      netlink_rcv_skb+0x130/0x360
[ 1474.990758][   T10]      netlink_unicast+0x449/0x710
[ 1474.990758][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1474.990758][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1474.990758][   T10]      ___sys_sendmsg+0xee/0x170
[ 1474.990758][   T10]      __sys_sendmsg+0xcd/0x170
[ 1474.990758][   T10]      do_syscall_64+0xc6/0x1e0
[ 1474.990758][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1474.990758][   T10] 
[ 1485.105842][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1485.106309][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1485.106309][   T10]      dst_init+0x84/0x4a0
[ 1485.106309][   T10]      dst_alloc+0x97/0x150
[ 1485.106309][   T10]      ip6_dst_alloc+0x23/0x90
[ 1485.106309][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1485.106309][   T10]      ip6_pol_route+0x56f/0x840
[ 1485.106309][   T10]      fib6_rule_lookup+0x456/0x630
[ 1485.106309][   T10]      ip6_route_input+0x59c/0xa50
[ 1485.106309][   T10]      ipv6_rcv+0x397/0x810
[ 1485.106309][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1485.106309][   T10]      process_backlog+0x101/0x620
[ 1485.106309][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1485.106309][   T10]      net_rx_action+0x495/0xbe0
[ 1485.106309][   T10]      __do_softirq+0x1b5/0x7f6
[ 1485.106309][   T10] 
[ 1485.107979][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1485.107979][   T10]      netdev_get_by_index+0x5e/0x80
[ 1485.107979][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1485.107979][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1485.107979][   T10]      ip6_route_add+0x1c/0x140
[ 1485.107979][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1485.107979][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1485.107979][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1485.107979][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1485.107979][   T10]      netlink_rcv_skb+0x130/0x360
[ 1485.107979][   T10]      netlink_unicast+0x449/0x710
[ 1485.107979][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1485.107979][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1485.107979][   T10]      ___sys_sendmsg+0xee/0x170
[ 1485.107979][   T10]      __sys_sendmsg+0xcd/0x170
[ 1485.107979][   T10]      do_syscall_64+0xc6/0x1e0
[ 1485.107979][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1485.107979][   T10] 
[ 1485.110099][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1485.110099][   T10]      netdev_get_by_index+0x5e/0x80
[ 1485.110099][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1485.110099][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1485.110099][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1485.110099][   T10]      ipv6_add_addr+0x411/0x2000
[ 1485.110099][   T10]      inet6_addr_add+0x30e/0xa40
[ 1485.110099][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1485.110099][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1485.110099][   T10]      netlink_rcv_skb+0x130/0x360
[ 1485.110099][   T10]      netlink_unicast+0x449/0x710
[ 1485.110099][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1485.110099][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1485.110099][   T10]      ___sys_sendmsg+0xee/0x170
[ 1485.110099][   T10]      __sys_sendmsg+0xcd/0x170
[ 1485.110099][   T10]      do_syscall_64+0xc6/0x1e0
[ 1485.110099][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1485.110099][   T10] 
[ 1485.112108][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1485.112108][   T10]      netdev_get_by_index+0x5e/0x80
[ 1485.112108][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1485.112108][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1485.112108][   T10]      ip6_route_add+0x1c/0x140
[ 1485.112108][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1485.112108][   T10]      addrconf_add_dev+0xe2/0x170
[ 1485.112108][   T10]      inet6_addr_add+0x12f/0xa40
[ 1485.112108][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1485.112108][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1485.112108][   T10]      netlink_rcv_skb+0x130/0x360
[ 1485.112108][   T10]      netlink_unicast+0x449/0x710
[ 1485.112108][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1485.112108][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1485.112108][   T10]      ___sys_sendmsg+0xee/0x170
[ 1485.112108][   T10]      __sys_sendmsg+0xcd/0x170
[ 1485.112108][   T10]      do_syscall_64+0xc6/0x1e0
[ 1485.112108][   T10] 
[ 1485.114083][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1485.114083][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1485.114083][   T10]      ipv6_find_idev+0x102/0x170
[ 1485.114083][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1485.114083][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1485.114083][   T10]      netlink_rcv_skb+0x130/0x360
[ 1485.114083][   T10]      netlink_unicast+0x449/0x710
[ 1485.114083][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1485.114083][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1485.114083][   T10]      ___sys_sendmsg+0xee/0x170
[ 1485.114083][   T10]      __sys_sendmsg+0xcd/0x170
[ 1485.114083][   T10]      do_syscall_64+0xc6/0x1e0
[ 1485.114083][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1485.114083][   T10] 
[ 1485.115634][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1485.115634][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1485.115634][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1485.115634][   T10]      ipv6_find_idev+0x102/0x170
[ 1485.115634][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1485.115634][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1485.115634][   T10]      netlink_rcv_skb+0x130/0x360
[ 1485.115634][   T10]      netlink_unicast+0x449/0x710
[ 1485.115634][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1485.115634][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1485.115634][   T10]      ___sys_sendmsg+0xee/0x170
[ 1485.115634][   T10]      __sys_sendmsg+0xcd/0x170
[ 1485.115634][   T10]      do_syscall_64+0xc6/0x1e0
[ 1485.115634][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1485.115634][   T10] 
[ 1485.117341][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1485.117589][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1485.117589][   T10]      dst_init+0x84/0x4a0
[ 1485.117589][   T10]      dst_alloc+0x97/0x150
[ 1485.117589][   T10]      ip6_dst_alloc+0x23/0x90
[ 1485.117589][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1485.117589][   T10]      ip6_pol_route+0x56f/0x840
[ 1485.117589][   T10]      fib6_rule_lookup+0x456/0x630
[ 1485.117589][   T10]      ip6_route_input+0x59c/0xa50
[ 1485.117589][   T10]      ipv6_rcv+0x397/0x810
[ 1485.117589][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1485.117589][   T10]      process_backlog+0x101/0x620
[ 1485.117589][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1485.117589][   T10]      net_rx_action+0x495/0xbe0
[ 1485.117589][   T10]      __do_softirq+0x1b5/0x7f6
[ 1485.117589][   T10] 
[ 1485.119229][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1485.119229][   T10]      netdev_get_by_index+0x5e/0x80
[ 1485.119229][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1485.119229][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1485.119229][   T10]      ip6_route_add+0x1c/0x140
[ 1485.119229][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1485.119229][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1485.119229][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1485.119229][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1485.119229][   T10]      netlink_rcv_skb+0x130/0x360
[ 1485.119229][   T10]      netlink_unicast+0x449/0x710
[ 1485.119229][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1485.119229][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1485.119229][   T10]      ___sys_sendmsg+0xee/0x170
[ 1485.119229][   T10]      __sys_sendmsg+0xcd/0x170
[ 1485.119229][   T10]      do_syscall_64+0xc6/0x1e0
[ 1485.119229][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1485.119229][   T10] 
[ 1485.121247][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1485.121247][   T10]      netdev_get_by_index+0x5e/0x80
[ 1485.121247][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1485.121247][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1485.121247][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1485.121247][   T10]      ipv6_add_addr+0x411/0x2000
[ 1485.121247][   T10]      inet6_addr_add+0x30e/0xa40
[ 1485.121247][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1485.121247][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1485.121247][   T10]      netlink_rcv_skb+0x130/0x360
[ 1485.121247][   T10]      netlink_unicast+0x449/0x710
[ 1485.121247][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1485.121247][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1485.121247][   T10]      ___sys_sendmsg+0xee/0x170
[ 1485.121247][   T10]      __sys_sendmsg+0xcd/0x170
[ 1485.121247][   T10]      do_syscall_64+0xc6/0x1e0
[ 1485.121247][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1485.121247][   T10] 
[ 1485.123252][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1485.123252][   T10]      netdev_get_by_index+0x5e/0x80
[ 1485.123252][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1485.123252][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1485.123252][   T10]      ip6_route_add+0x1c/0x140
[ 1485.123252][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1485.123252][   T10]      addrconf_add_dev+0xe2/0x170
[ 1485.123252][   T10]      inet6_addr_add+0x12f/0xa40
[ 1485.123252][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1485.123252][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1485.123252][   T10]      netlink_rcv_skb+0x130/0x360
[ 1485.123252][   T10]      netlink_unicast+0x449/0x710
[ 1485.123252][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1485.123252][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1485.123252][   T10]      ___sys_sendmsg+0xee/0x170
[ 1485.123252][   T10]      __sys_sendmsg+0xcd/0x170
[ 1485.123252][   T10]      do_syscall_64+0xc6/0x1e0
[ 1485.123252][   T10] 
[ 1485.125230][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1485.125230][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1485.125230][   T10]      ipv6_find_idev+0x102/0x170
[ 1485.125230][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1485.125230][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1485.125230][   T10]      netlink_rcv_skb+0x130/0x360
[ 1485.125230][   T10]      netlink_unicast+0x449/0x710
[ 1485.125230][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1485.125230][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1485.125230][   T10]      ___sys_sendmsg+0xee/0x170
[ 1485.125230][   T10]      __sys_sendmsg+0xcd/0x170
[ 1485.125230][   T10]      do_syscall_64+0xc6/0x1e0
[ 1485.125230][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1485.125230][   T10] 
[ 1485.126771][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1485.126771][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1485.126771][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1485.126771][   T10]      ipv6_find_idev+0x102/0x170
[ 1485.126771][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1485.126771][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1485.126771][   T10]      netlink_rcv_skb+0x130/0x360
[ 1485.126771][   T10]      netlink_unicast+0x449/0x710
[ 1485.126771][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1485.126771][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1485.126771][   T10]      ___sys_sendmsg+0xee/0x170
[ 1485.126771][   T10]      __sys_sendmsg+0xcd/0x170
[ 1485.126771][   T10]      do_syscall_64+0xc6/0x1e0
[ 1485.126771][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1485.126771][   T10] 
[ 1495.153860][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1495.154276][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1495.154276][   T10]      dst_init+0x84/0x4a0
[ 1495.154276][   T10]      dst_alloc+0x97/0x150
[ 1495.154276][   T10]      ip6_dst_alloc+0x23/0x90
[ 1495.154276][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1495.154276][   T10]      ip6_pol_route+0x56f/0x840
[ 1495.154276][   T10]      fib6_rule_lookup+0x456/0x630
[ 1495.154276][   T10]      ip6_route_input+0x59c/0xa50
[ 1495.154276][   T10]      ipv6_rcv+0x397/0x810
[ 1495.154276][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1495.154276][   T10]      process_backlog+0x101/0x620
[ 1495.154276][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1495.154276][   T10]      net_rx_action+0x495/0xbe0
[ 1495.154276][   T10]      __do_softirq+0x1b5/0x7f6
[ 1495.154276][   T10] 
[ 1495.155965][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1495.155965][   T10]      netdev_get_by_index+0x5e/0x80
[ 1495.155965][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1495.155965][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1495.155965][   T10]      ip6_route_add+0x1c/0x140
[ 1495.155965][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1495.155965][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1495.155965][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1495.155965][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1495.155965][   T10]      netlink_rcv_skb+0x130/0x360
[ 1495.155965][   T10]      netlink_unicast+0x449/0x710
[ 1495.155965][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1495.155965][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1495.155965][   T10]      ___sys_sendmsg+0xee/0x170
[ 1495.155965][   T10]      __sys_sendmsg+0xcd/0x170
[ 1495.155965][   T10]      do_syscall_64+0xc6/0x1e0
[ 1495.155965][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1495.155965][   T10] 
[ 1495.157971][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1495.157971][   T10]      netdev_get_by_index+0x5e/0x80
[ 1495.157971][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1495.157971][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1495.157971][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1495.157971][   T10]      ipv6_add_addr+0x411/0x2000
[ 1495.157971][   T10]      inet6_addr_add+0x30e/0xa40
[ 1495.157971][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1495.157971][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1495.157971][   T10]      netlink_rcv_skb+0x130/0x360
[ 1495.157971][   T10]      netlink_unicast+0x449/0x710
[ 1495.157971][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1495.157971][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1495.157971][   T10]      ___sys_sendmsg+0xee/0x170
[ 1495.157971][   T10]      __sys_sendmsg+0xcd/0x170
[ 1495.157971][   T10]      do_syscall_64+0xc6/0x1e0
[ 1495.157971][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1495.157971][   T10] 
[ 1495.159981][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1495.159981][   T10]      netdev_get_by_index+0x5e/0x80
[ 1495.159981][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1495.159981][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1495.159981][   T10]      ip6_route_add+0x1c/0x140
[ 1495.159981][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1495.159981][   T10]      addrconf_add_dev+0xe2/0x170
[ 1495.159981][   T10]      inet6_addr_add+0x12f/0xa40
[ 1495.159981][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1495.159981][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1495.159981][   T10]      netlink_rcv_skb+0x130/0x360
[ 1495.159981][   T10]      netlink_unicast+0x449/0x710
[ 1495.159981][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1495.159981][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1495.159981][   T10]      ___sys_sendmsg+0xee/0x170
[ 1495.159981][   T10]      __sys_sendmsg+0xcd/0x170
[ 1495.159981][   T10]      do_syscall_64+0xc6/0x1e0
[ 1495.159981][   T10] 
[ 1495.161943][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1495.161943][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1495.161943][   T10]      ipv6_find_idev+0x102/0x170
[ 1495.161943][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1495.161943][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1495.161943][   T10]      netlink_rcv_skb+0x130/0x360
[ 1495.161943][   T10]      netlink_unicast+0x449/0x710
[ 1495.161943][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1495.161943][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1495.161943][   T10]      ___sys_sendmsg+0xee/0x170
[ 1495.161943][   T10]      __sys_sendmsg+0xcd/0x170
[ 1495.161943][   T10]      do_syscall_64+0xc6/0x1e0
[ 1495.161943][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1495.161943][   T10] 
[ 1495.163493][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1495.163493][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1495.163493][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1495.163493][   T10]      ipv6_find_idev+0x102/0x170
[ 1495.163493][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1495.163493][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1495.163493][   T10]      netlink_rcv_skb+0x130/0x360
[ 1495.163493][   T10]      netlink_unicast+0x449/0x710
[ 1495.163493][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1495.163493][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1495.163493][   T10]      ___sys_sendmsg+0xee/0x170
[ 1495.163493][   T10]      __sys_sendmsg+0xcd/0x170
[ 1495.163493][   T10]      do_syscall_64+0xc6/0x1e0
[ 1495.163493][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1495.163493][   T10] 
[ 1495.165209][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1495.165453][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1495.165453][   T10]      dst_init+0x84/0x4a0
[ 1495.165453][   T10]      dst_alloc+0x97/0x150
[ 1495.165453][   T10]      ip6_dst_alloc+0x23/0x90
[ 1495.165453][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1495.165453][   T10]      ip6_pol_route+0x56f/0x840
[ 1495.165453][   T10]      fib6_rule_lookup+0x456/0x630
[ 1495.165453][   T10]      ip6_route_input+0x59c/0xa50
[ 1495.165453][   T10]      ipv6_rcv+0x397/0x810
[ 1495.165453][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1495.165453][   T10]      process_backlog+0x101/0x620
[ 1495.165453][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1495.165453][   T10]      net_rx_action+0x495/0xbe0
[ 1495.165453][   T10]      __do_softirq+0x1b5/0x7f6
[ 1495.165453][   T10] 
[ 1495.167092][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1495.167092][   T10]      netdev_get_by_index+0x5e/0x80
[ 1495.167092][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1495.167092][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1495.167092][   T10]      ip6_route_add+0x1c/0x140
[ 1495.167092][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1495.167092][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1495.167092][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1495.167092][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1495.167092][   T10]      netlink_rcv_skb+0x130/0x360
[ 1495.167092][   T10]      netlink_unicast+0x449/0x710
[ 1495.167092][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1495.167092][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1495.167092][   T10]      ___sys_sendmsg+0xee/0x170
[ 1495.167092][   T10]      __sys_sendmsg+0xcd/0x170
[ 1495.167092][   T10]      do_syscall_64+0xc6/0x1e0
[ 1495.167092][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1495.167092][   T10] 
[ 1495.169088][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1495.169088][   T10]      netdev_get_by_index+0x5e/0x80
[ 1495.169088][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1495.169088][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1495.169088][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1495.169088][   T10]      ipv6_add_addr+0x411/0x2000
[ 1495.169088][   T10]      inet6_addr_add+0x30e/0xa40
[ 1495.169088][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1495.169088][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1495.169088][   T10]      netlink_rcv_skb+0x130/0x360
[ 1495.169088][   T10]      netlink_unicast+0x449/0x710
[ 1495.169088][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1495.169088][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1495.169088][   T10]      ___sys_sendmsg+0xee/0x170
[ 1495.169088][   T10]      __sys_sendmsg+0xcd/0x170
[ 1495.169088][   T10]      do_syscall_64+0xc6/0x1e0
[ 1495.169088][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1495.169088][   T10] 
[ 1495.171084][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1495.171084][   T10]      netdev_get_by_index+0x5e/0x80
[ 1495.171084][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1495.171084][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1495.171084][   T10]      ip6_route_add+0x1c/0x140
[ 1495.171084][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1495.171084][   T10]      addrconf_add_dev+0xe2/0x170
[ 1495.171084][   T10]      inet6_addr_add+0x12f/0xa40
[ 1495.171084][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1495.171084][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1495.171084][   T10]      netlink_rcv_skb+0x130/0x360
[ 1495.171084][   T10]      netlink_unicast+0x449/0x710
[ 1495.171084][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1495.171084][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1495.171084][   T10]      ___sys_sendmsg+0xee/0x170
[ 1495.171084][   T10]      __sys_sendmsg+0xcd/0x170
[ 1495.171084][   T10]      do_syscall_64+0xc6/0x1e0
[ 1495.171084][   T10] 
[ 1495.173045][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1495.173045][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1495.173045][   T10]      ipv6_find_idev+0x102/0x170
[ 1495.173045][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1495.173045][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1495.173045][   T10]      netlink_rcv_skb+0x130/0x360
[ 1495.173045][   T10]      netlink_unicast+0x449/0x710
[ 1495.173045][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1495.173045][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1495.173045][   T10]      ___sys_sendmsg+0xee/0x170
[ 1495.173045][   T10]      __sys_sendmsg+0xcd/0x170
[ 1495.173045][   T10]      do_syscall_64+0xc6/0x1e0
[ 1495.173045][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1495.173045][   T10] 
[ 1495.174583][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1495.174583][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1495.174583][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1495.174583][   T10]      ipv6_find_idev+0x102/0x170
[ 1495.174583][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1495.174583][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1495.174583][   T10]      netlink_rcv_skb+0x130/0x360
[ 1495.174583][   T10]      netlink_unicast+0x449/0x710
[ 1495.174583][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1495.174583][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1495.174583][   T10]      ___sys_sendmsg+0xee/0x170
[ 1495.174583][   T10]      __sys_sendmsg+0xcd/0x170
[ 1495.174583][   T10]      do_syscall_64+0xc6/0x1e0
[ 1495.174583][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1495.174583][   T10] 
[ 1505.361780][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1505.362164][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1505.362164][   T10]      dst_init+0x84/0x4a0
[ 1505.362164][   T10]      dst_alloc+0x97/0x150
[ 1505.362164][   T10]      ip6_dst_alloc+0x23/0x90
[ 1505.362164][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1505.362164][   T10]      ip6_pol_route+0x56f/0x840
[ 1505.362164][   T10]      fib6_rule_lookup+0x456/0x630
[ 1505.362164][   T10]      ip6_route_input+0x59c/0xa50
[ 1505.362164][   T10]      ipv6_rcv+0x397/0x810
[ 1505.362164][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1505.362164][   T10]      process_backlog+0x101/0x620
[ 1505.362164][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1505.362164][   T10]      net_rx_action+0x495/0xbe0
[ 1505.362164][   T10]      __do_softirq+0x1b5/0x7f6
[ 1505.362164][   T10] 
[ 1505.363960][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1505.363960][   T10]      netdev_get_by_index+0x5e/0x80
[ 1505.363960][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1505.363960][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1505.363960][   T10]      ip6_route_add+0x1c/0x140
[ 1505.363960][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1505.363960][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1505.363960][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1505.363960][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1505.363960][   T10]      netlink_rcv_skb+0x130/0x360
[ 1505.363960][   T10]      netlink_unicast+0x449/0x710
[ 1505.363960][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1505.363960][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1505.363960][   T10]      ___sys_sendmsg+0xee/0x170
[ 1505.363960][   T10]      __sys_sendmsg+0xcd/0x170
[ 1505.363960][   T10]      do_syscall_64+0xc6/0x1e0
[ 1505.363960][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1505.363960][   T10] 
[ 1505.365992][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1505.365992][   T10]      netdev_get_by_index+0x5e/0x80
[ 1505.365992][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1505.365992][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1505.365992][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1505.365992][   T10]      ipv6_add_addr+0x411/0x2000
[ 1505.365992][   T10]      inet6_addr_add+0x30e/0xa40
[ 1505.365992][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1505.365992][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1505.365992][   T10]      netlink_rcv_skb+0x130/0x360
[ 1505.365992][   T10]      netlink_unicast+0x449/0x710
[ 1505.365992][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1505.365992][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1505.365992][   T10]      ___sys_sendmsg+0xee/0x170
[ 1505.365992][   T10]      __sys_sendmsg+0xcd/0x170
[ 1505.365992][   T10]      do_syscall_64+0xc6/0x1e0
[ 1505.365992][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1505.365992][   T10] 
[ 1505.367988][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1505.367988][   T10]      netdev_get_by_index+0x5e/0x80
[ 1505.367988][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1505.367988][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1505.367988][   T10]      ip6_route_add+0x1c/0x140
[ 1505.367988][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1505.367988][   T10]      addrconf_add_dev+0xe2/0x170
[ 1505.367988][   T10]      inet6_addr_add+0x12f/0xa40
[ 1505.367988][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1505.367988][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1505.367988][   T10]      netlink_rcv_skb+0x130/0x360
[ 1505.367988][   T10]      netlink_unicast+0x449/0x710
[ 1505.367988][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1505.367988][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1505.367988][   T10]      ___sys_sendmsg+0xee/0x170
[ 1505.367988][   T10]      __sys_sendmsg+0xcd/0x170
[ 1505.367988][   T10]      do_syscall_64+0xc6/0x1e0
[ 1505.367988][   T10] 
[ 1505.369940][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1505.369940][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1505.369940][   T10]      ipv6_find_idev+0x102/0x170
[ 1505.369940][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1505.369940][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1505.369940][   T10]      netlink_rcv_skb+0x130/0x360
[ 1505.369940][   T10]      netlink_unicast+0x449/0x710
[ 1505.369940][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1505.369940][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1505.369940][   T10]      ___sys_sendmsg+0xee/0x170
[ 1505.369940][   T10]      __sys_sendmsg+0xcd/0x170
[ 1505.369940][   T10]      do_syscall_64+0xc6/0x1e0
[ 1505.369940][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1505.369940][   T10] 
[ 1505.372004][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1505.372004][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1505.372004][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1505.372004][   T10]      ipv6_find_idev+0x102/0x170
[ 1505.372004][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1505.372004][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1505.372004][   T10]      netlink_rcv_skb+0x130/0x360
[ 1505.372004][   T10]      netlink_unicast+0x449/0x710
[ 1505.372004][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1505.372004][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1505.372004][   T10]      ___sys_sendmsg+0xee/0x170
[ 1505.372004][   T10]      __sys_sendmsg+0xcd/0x170
[ 1505.372004][   T10]      do_syscall_64+0xc6/0x1e0
[ 1505.372004][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1505.372004][   T10] 
[ 1505.373698][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1505.373944][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1505.373944][   T10]      dst_init+0x84/0x4a0
[ 1505.373944][   T10]      dst_alloc+0x97/0x150
[ 1505.373944][   T10]      ip6_dst_alloc+0x23/0x90
[ 1505.373944][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1505.373944][   T10]      ip6_pol_route+0x56f/0x840
[ 1505.373944][   T10]      fib6_rule_lookup+0x456/0x630
[ 1505.373944][   T10]      ip6_route_input+0x59c/0xa50
[ 1505.373944][   T10]      ipv6_rcv+0x397/0x810
[ 1505.373944][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1505.373944][   T10]      process_backlog+0x101/0x620
[ 1505.373944][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1505.373944][   T10]      net_rx_action+0x495/0xbe0
[ 1505.373944][   T10]      __do_softirq+0x1b5/0x7f6
[ 1505.373944][   T10] 
[ 1505.375580][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1505.375580][   T10]      netdev_get_by_index+0x5e/0x80
[ 1505.375580][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1505.375580][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1505.375580][   T10]      ip6_route_add+0x1c/0x140
[ 1505.375580][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1505.375580][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1505.375580][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1505.375580][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1505.375580][   T10]      netlink_rcv_skb+0x130/0x360
[ 1505.375580][   T10]      netlink_unicast+0x449/0x710
[ 1505.375580][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1505.375580][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1505.375580][   T10]      ___sys_sendmsg+0xee/0x170
[ 1505.375580][   T10]      __sys_sendmsg+0xcd/0x170
[ 1505.375580][   T10]      do_syscall_64+0xc6/0x1e0
[ 1505.375580][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1505.375580][   T10] 
[ 1505.377568][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1505.377568][   T10]      netdev_get_by_index+0x5e/0x80
[ 1505.377568][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1505.377568][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1505.377568][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1505.377568][   T10]      ipv6_add_addr+0x411/0x2000
[ 1505.377568][   T10]      inet6_addr_add+0x30e/0xa40
[ 1505.377568][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1505.377568][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1505.377568][   T10]      netlink_rcv_skb+0x130/0x360
[ 1505.377568][   T10]      netlink_unicast+0x449/0x710
[ 1505.377568][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1505.377568][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1505.377568][   T10]      ___sys_sendmsg+0xee/0x170
[ 1505.377568][   T10]      __sys_sendmsg+0xcd/0x170
[ 1505.377568][   T10]      do_syscall_64+0xc6/0x1e0
[ 1505.377568][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1505.377568][   T10] 
[ 1505.379559][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1505.379559][   T10]      netdev_get_by_index+0x5e/0x80
[ 1505.379559][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1505.379559][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1505.379559][   T10]      ip6_route_add+0x1c/0x140
[ 1505.379559][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1505.379559][   T10]      addrconf_add_dev+0xe2/0x170
[ 1505.379559][   T10]      inet6_addr_add+0x12f/0xa40
[ 1505.379559][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1505.379559][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1505.379559][   T10]      netlink_rcv_skb+0x130/0x360
[ 1505.379559][   T10]      netlink_unicast+0x449/0x710
[ 1505.379559][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1505.379559][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1505.379559][   T10]      ___sys_sendmsg+0xee/0x170
[ 1505.379559][   T10]      __sys_sendmsg+0xcd/0x170
[ 1505.379559][   T10]      do_syscall_64+0xc6/0x1e0
[ 1505.379559][   T10] 
[ 1505.381507][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1505.381507][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1505.381507][   T10]      ipv6_find_idev+0x102/0x170
[ 1505.381507][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1505.381507][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1505.381507][   T10]      netlink_rcv_skb+0x130/0x360
[ 1505.381507][   T10]      netlink_unicast+0x449/0x710
[ 1505.381507][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1505.381507][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1505.381507][   T10]      ___sys_sendmsg+0xee/0x170
[ 1505.381507][   T10]      __sys_sendmsg+0xcd/0x170
[ 1505.381507][   T10]      do_syscall_64+0xc6/0x1e0
[ 1505.381507][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1505.381507][   T10] 
[ 1505.383035][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1505.383035][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1505.383035][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1505.383035][   T10]      ipv6_find_idev+0x102/0x170
[ 1505.383035][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1505.383035][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1505.383035][   T10]      netlink_rcv_skb+0x130/0x360
[ 1505.383035][   T10]      netlink_unicast+0x449/0x710
[ 1505.383035][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1505.383035][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1505.383035][   T10]      ___sys_sendmsg+0xee/0x170
[ 1505.383035][   T10]      __sys_sendmsg+0xcd/0x170
[ 1505.383035][   T10]      do_syscall_64+0xc6/0x1e0
[ 1505.383035][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1505.383035][   T10] 
[ 1515.593835][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1515.594288][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1515.594288][   T10]      dst_init+0x84/0x4a0
[ 1515.594288][   T10]      dst_alloc+0x97/0x150
[ 1515.594288][   T10]      ip6_dst_alloc+0x23/0x90
[ 1515.594288][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1515.594288][   T10]      ip6_pol_route+0x56f/0x840
[ 1515.594288][   T10]      fib6_rule_lookup+0x456/0x630
[ 1515.594288][   T10]      ip6_route_input+0x59c/0xa50
[ 1515.594288][   T10]      ipv6_rcv+0x397/0x810
[ 1515.594288][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1515.594288][   T10]      process_backlog+0x101/0x620
[ 1515.594288][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1515.594288][   T10]      net_rx_action+0x495/0xbe0
[ 1515.594288][   T10]      __do_softirq+0x1b5/0x7f6
[ 1515.594288][   T10] 
[ 1515.595980][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1515.595980][   T10]      netdev_get_by_index+0x5e/0x80
[ 1515.595980][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1515.595980][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1515.595980][   T10]      ip6_route_add+0x1c/0x140
[ 1515.595980][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1515.595980][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1515.595980][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1515.595980][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1515.595980][   T10]      netlink_rcv_skb+0x130/0x360
[ 1515.595980][   T10]      netlink_unicast+0x449/0x710
[ 1515.595980][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1515.595980][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1515.595980][   T10]      ___sys_sendmsg+0xee/0x170
[ 1515.595980][   T10]      __sys_sendmsg+0xcd/0x170
[ 1515.595980][   T10]      do_syscall_64+0xc6/0x1e0
[ 1515.595980][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1515.595980][   T10] 
[ 1515.597998][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1515.597998][   T10]      netdev_get_by_index+0x5e/0x80
[ 1515.597998][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1515.597998][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1515.597998][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1515.597998][   T10]      ipv6_add_addr+0x411/0x2000
[ 1515.597998][   T10]      inet6_addr_add+0x30e/0xa40
[ 1515.597998][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1515.597998][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1515.597998][   T10]      netlink_rcv_skb+0x130/0x360
[ 1515.597998][   T10]      netlink_unicast+0x449/0x710
[ 1515.597998][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1515.597998][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1515.597998][   T10]      ___sys_sendmsg+0xee/0x170
[ 1515.597998][   T10]      __sys_sendmsg+0xcd/0x170
[ 1515.597998][   T10]      do_syscall_64+0xc6/0x1e0
[ 1515.597998][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1515.597998][   T10] 
[ 1515.599996][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1515.599996][   T10]      netdev_get_by_index+0x5e/0x80
[ 1515.599996][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1515.599996][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1515.599996][   T10]      ip6_route_add+0x1c/0x140
[ 1515.599996][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1515.599996][   T10]      addrconf_add_dev+0xe2/0x170
[ 1515.599996][   T10]      inet6_addr_add+0x12f/0xa40
[ 1515.599996][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1515.599996][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1515.599996][   T10]      netlink_rcv_skb+0x130/0x360
[ 1515.599996][   T10]      netlink_unicast+0x449/0x710
[ 1515.599996][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1515.599996][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1515.599996][   T10]      ___sys_sendmsg+0xee/0x170
[ 1515.599996][   T10]      __sys_sendmsg+0xcd/0x170
[ 1515.599996][   T10]      do_syscall_64+0xc6/0x1e0
[ 1515.599996][   T10] 
[ 1515.601963][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1515.601963][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1515.601963][   T10]      ipv6_find_idev+0x102/0x170
[ 1515.601963][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1515.601963][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1515.601963][   T10]      netlink_rcv_skb+0x130/0x360
[ 1515.601963][   T10]      netlink_unicast+0x449/0x710
[ 1515.601963][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1515.601963][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1515.601963][   T10]      ___sys_sendmsg+0xee/0x170
[ 1515.601963][   T10]      __sys_sendmsg+0xcd/0x170
[ 1515.601963][   T10]      do_syscall_64+0xc6/0x1e0
[ 1515.601963][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1515.601963][   T10] 
[ 1515.603504][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1515.603504][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1515.603504][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1515.603504][   T10]      ipv6_find_idev+0x102/0x170
[ 1515.603504][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1515.603504][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1515.603504][   T10]      netlink_rcv_skb+0x130/0x360
[ 1515.603504][   T10]      netlink_unicast+0x449/0x710
[ 1515.603504][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1515.603504][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1515.603504][   T10]      ___sys_sendmsg+0xee/0x170
[ 1515.603504][   T10]      __sys_sendmsg+0xcd/0x170
[ 1515.603504][   T10]      do_syscall_64+0xc6/0x1e0
[ 1515.603504][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1515.603504][   T10] 
[ 1515.605214][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1515.605456][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1515.605456][   T10]      dst_init+0x84/0x4a0
[ 1515.605456][   T10]      dst_alloc+0x97/0x150
[ 1515.605456][   T10]      ip6_dst_alloc+0x23/0x90
[ 1515.605456][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1515.605456][   T10]      ip6_pol_route+0x56f/0x840
[ 1515.605456][   T10]      fib6_rule_lookup+0x456/0x630
[ 1515.605456][   T10]      ip6_route_input+0x59c/0xa50
[ 1515.605456][   T10]      ipv6_rcv+0x397/0x810
[ 1515.605456][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1515.605456][   T10]      process_backlog+0x101/0x620
[ 1515.605456][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1515.605456][   T10]      net_rx_action+0x495/0xbe0
[ 1515.605456][   T10]      __do_softirq+0x1b5/0x7f6
[ 1515.605456][   T10] 
[ 1515.607094][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1515.607094][   T10]      netdev_get_by_index+0x5e/0x80
[ 1515.607094][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1515.607094][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1515.607094][   T10]      ip6_route_add+0x1c/0x140
[ 1515.607094][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1515.607094][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1515.607094][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1515.607094][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1515.607094][   T10]      netlink_rcv_skb+0x130/0x360
[ 1515.607094][   T10]      netlink_unicast+0x449/0x710
[ 1515.607094][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1515.607094][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1515.607094][   T10]      ___sys_sendmsg+0xee/0x170
[ 1515.607094][   T10]      __sys_sendmsg+0xcd/0x170
[ 1515.607094][   T10]      do_syscall_64+0xc6/0x1e0
[ 1515.607094][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1515.607094][   T10] 
[ 1515.609094][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1515.609094][   T10]      netdev_get_by_index+0x5e/0x80
[ 1515.609094][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1515.609094][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1515.609094][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1515.609094][   T10]      ipv6_add_addr+0x411/0x2000
[ 1515.609094][   T10]      inet6_addr_add+0x30e/0xa40
[ 1515.609094][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1515.609094][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1515.609094][   T10]      netlink_rcv_skb+0x130/0x360
[ 1515.609094][   T10]      netlink_unicast+0x449/0x710
[ 1515.609094][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1515.609094][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1515.609094][   T10]      ___sys_sendmsg+0xee/0x170
[ 1515.609094][   T10]      __sys_sendmsg+0xcd/0x170
[ 1515.609094][   T10]      do_syscall_64+0xc6/0x1e0
[ 1515.609094][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1515.609094][   T10] 
[ 1515.611092][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1515.611092][   T10]      netdev_get_by_index+0x5e/0x80
[ 1515.611092][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1515.611092][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1515.611092][   T10]      ip6_route_add+0x1c/0x140
[ 1515.611092][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1515.611092][   T10]      addrconf_add_dev+0xe2/0x170
[ 1515.611092][   T10]      inet6_addr_add+0x12f/0xa40
[ 1515.611092][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1515.611092][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1515.611092][   T10]      netlink_rcv_skb+0x130/0x360
[ 1515.611092][   T10]      netlink_unicast+0x449/0x710
[ 1515.611092][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1515.611092][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1515.611092][   T10]      ___sys_sendmsg+0xee/0x170
[ 1515.611092][   T10]      __sys_sendmsg+0xcd/0x170
[ 1515.611092][   T10]      do_syscall_64+0xc6/0x1e0
[ 1515.611092][   T10] 
[ 1515.613055][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1515.613055][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1515.613055][   T10]      ipv6_find_idev+0x102/0x170
[ 1515.613055][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1515.613055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1515.613055][   T10]      netlink_rcv_skb+0x130/0x360
[ 1515.613055][   T10]      netlink_unicast+0x449/0x710
[ 1515.613055][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1515.613055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1515.613055][   T10]      ___sys_sendmsg+0xee/0x170
[ 1515.613055][   T10]      __sys_sendmsg+0xcd/0x170
[ 1515.613055][   T10]      do_syscall_64+0xc6/0x1e0
[ 1515.613055][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1515.613055][   T10] 
[ 1515.614595][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1515.614595][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1515.614595][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1515.614595][   T10]      ipv6_find_idev+0x102/0x170
[ 1515.614595][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1515.614595][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1515.614595][   T10]      netlink_rcv_skb+0x130/0x360
[ 1515.614595][   T10]      netlink_unicast+0x449/0x710
[ 1515.614595][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1515.614595][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1515.614595][   T10]      ___sys_sendmsg+0xee/0x170
[ 1515.614595][   T10]      __sys_sendmsg+0xcd/0x170
[ 1515.614595][   T10]      do_syscall_64+0xc6/0x1e0
[ 1515.614595][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1515.614595][   T10] 
[ 1525.809788][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1525.810246][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1525.810246][   T10]      dst_init+0x84/0x4a0
[ 1525.810246][   T10]      dst_alloc+0x97/0x150
[ 1525.810246][   T10]      ip6_dst_alloc+0x23/0x90
[ 1525.810246][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1525.810246][   T10]      ip6_pol_route+0x56f/0x840
[ 1525.810246][   T10]      fib6_rule_lookup+0x456/0x630
[ 1525.810246][   T10]      ip6_route_input+0x59c/0xa50
[ 1525.810246][   T10]      ipv6_rcv+0x397/0x810
[ 1525.810246][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1525.810246][   T10]      process_backlog+0x101/0x620
[ 1525.810246][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1525.810246][   T10]      net_rx_action+0x495/0xbe0
[ 1525.810246][   T10]      __do_softirq+0x1b5/0x7f6
[ 1525.810246][   T10] 
[ 1525.811924][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1525.811924][   T10]      netdev_get_by_index+0x5e/0x80
[ 1525.811924][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1525.811924][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1525.811924][   T10]      ip6_route_add+0x1c/0x140
[ 1525.811924][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1525.811924][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1525.811924][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1525.811924][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1525.811924][   T10]      netlink_rcv_skb+0x130/0x360
[ 1525.811924][   T10]      netlink_unicast+0x449/0x710
[ 1525.811924][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1525.811924][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1525.811924][   T10]      ___sys_sendmsg+0xee/0x170
[ 1525.811924][   T10]      __sys_sendmsg+0xcd/0x170
[ 1525.811924][   T10]      do_syscall_64+0xc6/0x1e0
[ 1525.811924][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1525.811924][   T10] 
[ 1525.813942][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1525.813942][   T10]      netdev_get_by_index+0x5e/0x80
[ 1525.813942][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1525.813942][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1525.813942][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1525.813942][   T10]      ipv6_add_addr+0x411/0x2000
[ 1525.813942][   T10]      inet6_addr_add+0x30e/0xa40
[ 1525.813942][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1525.813942][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1525.813942][   T10]      netlink_rcv_skb+0x130/0x360
[ 1525.813942][   T10]      netlink_unicast+0x449/0x710
[ 1525.813942][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1525.813942][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1525.813942][   T10]      ___sys_sendmsg+0xee/0x170
[ 1525.813942][   T10]      __sys_sendmsg+0xcd/0x170
[ 1525.813942][   T10]      do_syscall_64+0xc6/0x1e0
[ 1525.813942][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1525.813942][   T10] 
[ 1525.815979][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1525.815979][   T10]      netdev_get_by_index+0x5e/0x80
[ 1525.815979][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1525.815979][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1525.815979][   T10]      ip6_route_add+0x1c/0x140
[ 1525.815979][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1525.815979][   T10]      addrconf_add_dev+0xe2/0x170
[ 1525.815979][   T10]      inet6_addr_add+0x12f/0xa40
[ 1525.815979][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1525.815979][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1525.815979][   T10]      netlink_rcv_skb+0x130/0x360
[ 1525.815979][   T10]      netlink_unicast+0x449/0x710
[ 1525.815979][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1525.815979][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1525.815979][   T10]      ___sys_sendmsg+0xee/0x170
[ 1525.815979][   T10]      __sys_sendmsg+0xcd/0x170
[ 1525.815979][   T10]      do_syscall_64+0xc6/0x1e0
[ 1525.815979][   T10] 
[ 1525.817945][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1525.817945][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1525.817945][   T10]      ipv6_find_idev+0x102/0x170
[ 1525.817945][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1525.817945][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1525.817945][   T10]      netlink_rcv_skb+0x130/0x360
[ 1525.817945][   T10]      netlink_unicast+0x449/0x710
[ 1525.817945][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1525.817945][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1525.817945][   T10]      ___sys_sendmsg+0xee/0x170
[ 1525.817945][   T10]      __sys_sendmsg+0xcd/0x170
[ 1525.817945][   T10]      do_syscall_64+0xc6/0x1e0
[ 1525.817945][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1525.817945][   T10] 
[ 1525.819491][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1525.819491][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1525.819491][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1525.819491][   T10]      ipv6_find_idev+0x102/0x170
[ 1525.819491][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1525.819491][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1525.819491][   T10]      netlink_rcv_skb+0x130/0x360
[ 1525.819491][   T10]      netlink_unicast+0x449/0x710
[ 1525.819491][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1525.819491][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1525.819491][   T10]      ___sys_sendmsg+0xee/0x170
[ 1525.819491][   T10]      __sys_sendmsg+0xcd/0x170
[ 1525.819491][   T10]      do_syscall_64+0xc6/0x1e0
[ 1525.819491][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1525.819491][   T10] 
[ 1525.821188][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1525.821431][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1525.821431][   T10]      dst_init+0x84/0x4a0
[ 1525.821431][   T10]      dst_alloc+0x97/0x150
[ 1525.821431][   T10]      ip6_dst_alloc+0x23/0x90
[ 1525.821431][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1525.821431][   T10]      ip6_pol_route+0x56f/0x840
[ 1525.821431][   T10]      fib6_rule_lookup+0x456/0x630
[ 1525.821431][   T10]      ip6_route_input+0x59c/0xa50
[ 1525.821431][   T10]      ipv6_rcv+0x397/0x810
[ 1525.821431][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1525.821431][   T10]      process_backlog+0x101/0x620
[ 1525.821431][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1525.821431][   T10]      net_rx_action+0x495/0xbe0
[ 1525.821431][   T10]      __do_softirq+0x1b5/0x7f6
[ 1525.821431][   T10] 
[ 1525.823071][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1525.823071][   T10]      netdev_get_by_index+0x5e/0x80
[ 1525.823071][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1525.823071][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1525.823071][   T10]      ip6_route_add+0x1c/0x140
[ 1525.823071][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1525.823071][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1525.823071][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1525.823071][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1525.823071][   T10]      netlink_rcv_skb+0x130/0x360
[ 1525.823071][   T10]      netlink_unicast+0x449/0x710
[ 1525.823071][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1525.823071][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1525.823071][   T10]      ___sys_sendmsg+0xee/0x170
[ 1525.823071][   T10]      __sys_sendmsg+0xcd/0x170
[ 1525.823071][   T10]      do_syscall_64+0xc6/0x1e0
[ 1525.823071][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1525.823071][   T10] 
[ 1525.825075][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1525.825075][   T10]      netdev_get_by_index+0x5e/0x80
[ 1525.825075][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1525.825075][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1525.825075][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1525.825075][   T10]      ipv6_add_addr+0x411/0x2000
[ 1525.825075][   T10]      inet6_addr_add+0x30e/0xa40
[ 1525.825075][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1525.825075][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1525.825075][   T10]      netlink_rcv_skb+0x130/0x360
[ 1525.825075][   T10]      netlink_unicast+0x449/0x710
[ 1525.825075][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1525.825075][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1525.825075][   T10]      ___sys_sendmsg+0xee/0x170
[ 1525.825075][   T10]      __sys_sendmsg+0xcd/0x170
[ 1525.825075][   T10]      do_syscall_64+0xc6/0x1e0
[ 1525.825075][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1525.825075][   T10] 
[ 1525.827124][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1525.827124][   T10]      netdev_get_by_index+0x5e/0x80
[ 1525.827124][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1525.827124][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1525.827124][   T10]      ip6_route_add+0x1c/0x140
[ 1525.827124][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1525.827124][   T10]      addrconf_add_dev+0xe2/0x170
[ 1525.827124][   T10]      inet6_addr_add+0x12f/0xa40
[ 1525.827124][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1525.827124][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1525.827124][   T10]      netlink_rcv_skb+0x130/0x360
[ 1525.827124][   T10]      netlink_unicast+0x449/0x710
[ 1525.827124][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1525.827124][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1525.827124][   T10]      ___sys_sendmsg+0xee/0x170
[ 1525.827124][   T10]      __sys_sendmsg+0xcd/0x170
[ 1525.827124][   T10]      do_syscall_64+0xc6/0x1e0
[ 1525.827124][   T10] 
[ 1525.829146][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1525.829146][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1525.829146][   T10]      ipv6_find_idev+0x102/0x170
[ 1525.829146][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1525.829146][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1525.829146][   T10]      netlink_rcv_skb+0x130/0x360
[ 1525.829146][   T10]      netlink_unicast+0x449/0x710
[ 1525.829146][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1525.829146][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1525.829146][   T10]      ___sys_sendmsg+0xee/0x170
[ 1525.829146][   T10]      __sys_sendmsg+0xcd/0x170
[ 1525.829146][   T10]      do_syscall_64+0xc6/0x1e0
[ 1525.829146][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1525.829146][   T10] 
[ 1525.830725][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1525.830725][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1525.830725][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1525.830725][   T10]      ipv6_find_idev+0x102/0x170
[ 1525.830725][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1525.830725][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1525.830725][   T10]      netlink_rcv_skb+0x130/0x360
[ 1525.830725][   T10]      netlink_unicast+0x449/0x710
[ 1525.830725][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1525.830725][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1525.830725][   T10]      ___sys_sendmsg+0xee/0x170
[ 1525.830725][   T10]      __sys_sendmsg+0xcd/0x170
[ 1525.830725][   T10]      do_syscall_64+0xc6/0x1e0
[ 1525.830725][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1525.830725][   T10] 
[ 1535.873783][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1535.874248][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1535.874248][   T10]      dst_init+0x84/0x4a0
[ 1535.874248][   T10]      dst_alloc+0x97/0x150
[ 1535.874248][   T10]      ip6_dst_alloc+0x23/0x90
[ 1535.874248][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1535.874248][   T10]      ip6_pol_route+0x56f/0x840
[ 1535.874248][   T10]      fib6_rule_lookup+0x456/0x630
[ 1535.874248][   T10]      ip6_route_input+0x59c/0xa50
[ 1535.874248][   T10]      ipv6_rcv+0x397/0x810
[ 1535.874248][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1535.874248][   T10]      process_backlog+0x101/0x620
[ 1535.874248][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1535.874248][   T10]      net_rx_action+0x495/0xbe0
[ 1535.874248][   T10]      __do_softirq+0x1b5/0x7f6
[ 1535.874248][   T10] 
[ 1535.875979][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1535.875979][   T10]      netdev_get_by_index+0x5e/0x80
[ 1535.875979][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1535.875979][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1535.875979][   T10]      ip6_route_add+0x1c/0x140
[ 1535.875979][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1535.875979][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1535.875979][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1535.875979][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1535.875979][   T10]      netlink_rcv_skb+0x130/0x360
[ 1535.875979][   T10]      netlink_unicast+0x449/0x710
[ 1535.875979][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1535.875979][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1535.875979][   T10]      ___sys_sendmsg+0xee/0x170
[ 1535.875979][   T10]      __sys_sendmsg+0xcd/0x170
[ 1535.875979][   T10]      do_syscall_64+0xc6/0x1e0
[ 1535.875979][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1535.875979][   T10] 
[ 1535.878033][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1535.878033][   T10]      netdev_get_by_index+0x5e/0x80
[ 1535.878033][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1535.878033][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1535.878033][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1535.878033][   T10]      ipv6_add_addr+0x411/0x2000
[ 1535.878033][   T10]      inet6_addr_add+0x30e/0xa40
[ 1535.878033][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1535.878033][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1535.878033][   T10]      netlink_rcv_skb+0x130/0x360
[ 1535.878033][   T10]      netlink_unicast+0x449/0x710
[ 1535.878033][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1535.878033][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1535.878033][   T10]      ___sys_sendmsg+0xee/0x170
[ 1535.878033][   T10]      __sys_sendmsg+0xcd/0x170
[ 1535.878033][   T10]      do_syscall_64+0xc6/0x1e0
[ 1535.878033][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1535.878033][   T10] 
[ 1535.880079][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1535.880079][   T10]      netdev_get_by_index+0x5e/0x80
[ 1535.880079][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1535.880079][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1535.880079][   T10]      ip6_route_add+0x1c/0x140
[ 1535.880079][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1535.880079][   T10]      addrconf_add_dev+0xe2/0x170
[ 1535.880079][   T10]      inet6_addr_add+0x12f/0xa40
[ 1535.880079][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1535.880079][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1535.880079][   T10]      netlink_rcv_skb+0x130/0x360
[ 1535.880079][   T10]      netlink_unicast+0x449/0x710
[ 1535.880079][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1535.880079][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1535.880079][   T10]      ___sys_sendmsg+0xee/0x170
[ 1535.880079][   T10]      __sys_sendmsg+0xcd/0x170
[ 1535.880079][   T10]      do_syscall_64+0xc6/0x1e0
[ 1535.880079][   T10] 
[ 1535.882099][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1535.882099][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1535.882099][   T10]      ipv6_find_idev+0x102/0x170
[ 1535.882099][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1535.882099][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1535.882099][   T10]      netlink_rcv_skb+0x130/0x360
[ 1535.882099][   T10]      netlink_unicast+0x449/0x710
[ 1535.882099][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1535.882099][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1535.882099][   T10]      ___sys_sendmsg+0xee/0x170
[ 1535.882099][   T10]      __sys_sendmsg+0xcd/0x170
[ 1535.882099][   T10]      do_syscall_64+0xc6/0x1e0
[ 1535.882099][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1535.882099][   T10] 
[ 1535.883685][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1535.883685][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1535.883685][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1535.883685][   T10]      ipv6_find_idev+0x102/0x170
[ 1535.883685][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1535.883685][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1535.883685][   T10]      netlink_rcv_skb+0x130/0x360
[ 1535.883685][   T10]      netlink_unicast+0x449/0x710
[ 1535.883685][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1535.883685][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1535.883685][   T10]      ___sys_sendmsg+0xee/0x170
[ 1535.883685][   T10]      __sys_sendmsg+0xcd/0x170
[ 1535.883685][   T10]      do_syscall_64+0xc6/0x1e0
[ 1535.883685][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1535.883685][   T10] 
[ 1535.885426][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1535.885681][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1535.885681][   T10]      dst_init+0x84/0x4a0
[ 1535.885681][   T10]      dst_alloc+0x97/0x150
[ 1535.885681][   T10]      ip6_dst_alloc+0x23/0x90
[ 1535.885681][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1535.885681][   T10]      ip6_pol_route+0x56f/0x840
[ 1535.885681][   T10]      fib6_rule_lookup+0x456/0x630
[ 1535.885681][   T10]      ip6_route_input+0x59c/0xa50
[ 1535.885681][   T10]      ipv6_rcv+0x397/0x810
[ 1535.885681][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1535.885681][   T10]      process_backlog+0x101/0x620
[ 1535.885681][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1535.885681][   T10]      net_rx_action+0x495/0xbe0
[ 1535.885681][   T10]      __do_softirq+0x1b5/0x7f6
[ 1535.885681][   T10] 
[ 1535.887358][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1535.887358][   T10]      netdev_get_by_index+0x5e/0x80
[ 1535.887358][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1535.887358][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1535.887358][   T10]      ip6_route_add+0x1c/0x140
[ 1535.887358][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1535.887358][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1535.887358][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1535.887358][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1535.887358][   T10]      netlink_rcv_skb+0x130/0x360
[ 1535.887358][   T10]      netlink_unicast+0x449/0x710
[ 1535.887358][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1535.887358][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1535.887358][   T10]      ___sys_sendmsg+0xee/0x170
[ 1535.887358][   T10]      __sys_sendmsg+0xcd/0x170
[ 1535.887358][   T10]      do_syscall_64+0xc6/0x1e0
[ 1535.887358][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1535.887358][   T10] 
[ 1535.889399][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1535.889399][   T10]      netdev_get_by_index+0x5e/0x80
[ 1535.889399][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1535.889399][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1535.889399][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1535.889399][   T10]      ipv6_add_addr+0x411/0x2000
[ 1535.889399][   T10]      inet6_addr_add+0x30e/0xa40
[ 1535.889399][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1535.889399][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1535.889399][   T10]      netlink_rcv_skb+0x130/0x360
[ 1535.889399][   T10]      netlink_unicast+0x449/0x710
[ 1535.889399][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1535.889399][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1535.889399][   T10]      ___sys_sendmsg+0xee/0x170
[ 1535.889399][   T10]      __sys_sendmsg+0xcd/0x170
[ 1535.889399][   T10]      do_syscall_64+0xc6/0x1e0
[ 1535.889399][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1535.889399][   T10] 
[ 1535.891443][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1535.891443][   T10]      netdev_get_by_index+0x5e/0x80
[ 1535.891443][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1535.891443][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1535.891443][   T10]      ip6_route_add+0x1c/0x140
[ 1535.891443][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1535.891443][   T10]      addrconf_add_dev+0xe2/0x170
[ 1535.891443][   T10]      inet6_addr_add+0x12f/0xa40
[ 1535.891443][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1535.891443][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1535.891443][   T10]      netlink_rcv_skb+0x130/0x360
[ 1535.891443][   T10]      netlink_unicast+0x449/0x710
[ 1535.891443][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1535.891443][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1535.891443][   T10]      ___sys_sendmsg+0xee/0x170
[ 1535.891443][   T10]      __sys_sendmsg+0xcd/0x170
[ 1535.891443][   T10]      do_syscall_64+0xc6/0x1e0
[ 1535.891443][   T10] 
[ 1535.893531][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1535.893531][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1535.893531][   T10]      ipv6_find_idev+0x102/0x170
[ 1535.893531][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1535.893531][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1535.893531][   T10]      netlink_rcv_skb+0x130/0x360
[ 1535.893531][   T10]      netlink_unicast+0x449/0x710
[ 1535.893531][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1535.893531][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1535.893531][   T10]      ___sys_sendmsg+0xee/0x170
[ 1535.893531][   T10]      __sys_sendmsg+0xcd/0x170
[ 1535.893531][   T10]      do_syscall_64+0xc6/0x1e0
[ 1535.893531][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1535.893531][   T10] 
[ 1535.895083][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1535.895083][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1535.895083][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1535.895083][   T10]      ipv6_find_idev+0x102/0x170
[ 1535.895083][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1535.895083][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1535.895083][   T10]      netlink_rcv_skb+0x130/0x360
[ 1535.895083][   T10]      netlink_unicast+0x449/0x710
[ 1535.895083][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1535.895083][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1535.895083][   T10]      ___sys_sendmsg+0xee/0x170
[ 1535.895083][   T10]      __sys_sendmsg+0xcd/0x170
[ 1535.895083][   T10]      do_syscall_64+0xc6/0x1e0
[ 1535.895083][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1535.895083][   T10] 
[ 1546.129778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1546.130175][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1546.130175][   T10]      dst_init+0x84/0x4a0
[ 1546.130175][   T10]      dst_alloc+0x97/0x150
[ 1546.130175][   T10]      ip6_dst_alloc+0x23/0x90
[ 1546.130175][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1546.130175][   T10]      ip6_pol_route+0x56f/0x840
[ 1546.130175][   T10]      fib6_rule_lookup+0x456/0x630
[ 1546.130175][   T10]      ip6_route_input+0x59c/0xa50
[ 1546.130175][   T10]      ipv6_rcv+0x397/0x810
[ 1546.130175][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1546.130175][   T10]      process_backlog+0x101/0x620
[ 1546.130175][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1546.130175][   T10]      net_rx_action+0x495/0xbe0
[ 1546.130175][   T10]      __do_softirq+0x1b5/0x7f6
[ 1546.130175][   T10] 
[ 1546.131861][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1546.131861][   T10]      netdev_get_by_index+0x5e/0x80
[ 1546.131861][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1546.131861][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1546.131861][   T10]      ip6_route_add+0x1c/0x140
[ 1546.131861][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1546.131861][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1546.131861][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1546.131861][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1546.131861][   T10]      netlink_rcv_skb+0x130/0x360
[ 1546.131861][   T10]      netlink_unicast+0x449/0x710
[ 1546.131861][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1546.131861][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1546.131861][   T10]      ___sys_sendmsg+0xee/0x170
[ 1546.131861][   T10]      __sys_sendmsg+0xcd/0x170
[ 1546.131861][   T10]      do_syscall_64+0xc6/0x1e0
[ 1546.131861][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1546.131861][   T10] 
[ 1546.133872][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1546.133872][   T10]      netdev_get_by_index+0x5e/0x80
[ 1546.133872][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1546.133872][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1546.133872][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1546.133872][   T10]      ipv6_add_addr+0x411/0x2000
[ 1546.133872][   T10]      inet6_addr_add+0x30e/0xa40
[ 1546.133872][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1546.133872][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1546.133872][   T10]      netlink_rcv_skb+0x130/0x360
[ 1546.133872][   T10]      netlink_unicast+0x449/0x710
[ 1546.133872][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1546.133872][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1546.133872][   T10]      ___sys_sendmsg+0xee/0x170
[ 1546.133872][   T10]      __sys_sendmsg+0xcd/0x170
[ 1546.133872][   T10]      do_syscall_64+0xc6/0x1e0
[ 1546.133872][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1546.133872][   T10] 
[ 1546.135885][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1546.135885][   T10]      netdev_get_by_index+0x5e/0x80
[ 1546.135885][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1546.135885][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1546.135885][   T10]      ip6_route_add+0x1c/0x140
[ 1546.135885][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1546.135885][   T10]      addrconf_add_dev+0xe2/0x170
[ 1546.135885][   T10]      inet6_addr_add+0x12f/0xa40
[ 1546.135885][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1546.135885][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1546.135885][   T10]      netlink_rcv_skb+0x130/0x360
[ 1546.135885][   T10]      netlink_unicast+0x449/0x710
[ 1546.135885][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1546.135885][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1546.135885][   T10]      ___sys_sendmsg+0xee/0x170
[ 1546.135885][   T10]      __sys_sendmsg+0xcd/0x170
[ 1546.135885][   T10]      do_syscall_64+0xc6/0x1e0
[ 1546.135885][   T10] 
[ 1546.137855][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1546.137855][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1546.137855][   T10]      ipv6_find_idev+0x102/0x170
[ 1546.137855][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1546.137855][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1546.137855][   T10]      netlink_rcv_skb+0x130/0x360
[ 1546.137855][   T10]      netlink_unicast+0x449/0x710
[ 1546.137855][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1546.137855][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1546.137855][   T10]      ___sys_sendmsg+0xee/0x170
[ 1546.137855][   T10]      __sys_sendmsg+0xcd/0x170
[ 1546.137855][   T10]      do_syscall_64+0xc6/0x1e0
[ 1546.137855][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1546.137855][   T10] 
[ 1546.139411][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1546.139411][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1546.139411][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1546.139411][   T10]      ipv6_find_idev+0x102/0x170
[ 1546.139411][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1546.139411][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1546.139411][   T10]      netlink_rcv_skb+0x130/0x360
[ 1546.139411][   T10]      netlink_unicast+0x449/0x710
[ 1546.139411][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1546.139411][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1546.139411][   T10]      ___sys_sendmsg+0xee/0x170
[ 1546.139411][   T10]      __sys_sendmsg+0xcd/0x170
[ 1546.139411][   T10]      do_syscall_64+0xc6/0x1e0
[ 1546.139411][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1546.139411][   T10] 
[ 1546.141109][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1546.141353][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1546.141353][   T10]      dst_init+0x84/0x4a0
[ 1546.141353][   T10]      dst_alloc+0x97/0x150
[ 1546.141353][   T10]      ip6_dst_alloc+0x23/0x90
[ 1546.141353][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1546.141353][   T10]      ip6_pol_route+0x56f/0x840
[ 1546.141353][   T10]      fib6_rule_lookup+0x456/0x630
[ 1546.141353][   T10]      ip6_route_input+0x59c/0xa50
[ 1546.141353][   T10]      ipv6_rcv+0x397/0x810
[ 1546.141353][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1546.141353][   T10]      process_backlog+0x101/0x620
[ 1546.141353][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1546.141353][   T10]      net_rx_action+0x495/0xbe0
[ 1546.141353][   T10]      __do_softirq+0x1b5/0x7f6
[ 1546.141353][   T10] 
[ 1546.142998][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1546.142998][   T10]      netdev_get_by_index+0x5e/0x80
[ 1546.142998][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1546.142998][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1546.142998][   T10]      ip6_route_add+0x1c/0x140
[ 1546.142998][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1546.142998][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1546.142998][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1546.142998][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1546.142998][   T10]      netlink_rcv_skb+0x130/0x360
[ 1546.142998][   T10]      netlink_unicast+0x449/0x710
[ 1546.142998][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1546.142998][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1546.142998][   T10]      ___sys_sendmsg+0xee/0x170
[ 1546.142998][   T10]      __sys_sendmsg+0xcd/0x170
[ 1546.142998][   T10]      do_syscall_64+0xc6/0x1e0
[ 1546.142998][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1546.142998][   T10] 
[ 1546.145006][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1546.145006][   T10]      netdev_get_by_index+0x5e/0x80
[ 1546.145006][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1546.145006][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1546.145006][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1546.145006][   T10]      ipv6_add_addr+0x411/0x2000
[ 1546.145006][   T10]      inet6_addr_add+0x30e/0xa40
[ 1546.145006][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1546.145006][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1546.145006][   T10]      netlink_rcv_skb+0x130/0x360
[ 1546.145006][   T10]      netlink_unicast+0x449/0x710
[ 1546.145006][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1546.145006][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1546.145006][   T10]      ___sys_sendmsg+0xee/0x170
[ 1546.145006][   T10]      __sys_sendmsg+0xcd/0x170
[ 1546.145006][   T10]      do_syscall_64+0xc6/0x1e0
[ 1546.145006][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1546.145006][   T10] 
[ 1546.147003][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1546.147003][   T10]      netdev_get_by_index+0x5e/0x80
[ 1546.147003][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1546.147003][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1546.147003][   T10]      ip6_route_add+0x1c/0x140
[ 1546.147003][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1546.147003][   T10]      addrconf_add_dev+0xe2/0x170
[ 1546.147003][   T10]      inet6_addr_add+0x12f/0xa40
[ 1546.147003][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1546.147003][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1546.147003][   T10]      netlink_rcv_skb+0x130/0x360
[ 1546.147003][   T10]      netlink_unicast+0x449/0x710
[ 1546.147003][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1546.147003][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1546.147003][   T10]      ___sys_sendmsg+0xee/0x170
[ 1546.147003][   T10]      __sys_sendmsg+0xcd/0x170
[ 1546.147003][   T10]      do_syscall_64+0xc6/0x1e0
[ 1546.147003][   T10] 
[ 1546.148961][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1546.148961][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1546.148961][   T10]      ipv6_find_idev+0x102/0x170
[ 1546.148961][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1546.148961][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1546.148961][   T10]      netlink_rcv_skb+0x130/0x360
[ 1546.148961][   T10]      netlink_unicast+0x449/0x710
[ 1546.148961][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1546.148961][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1546.148961][   T10]      ___sys_sendmsg+0xee/0x170
[ 1546.148961][   T10]      __sys_sendmsg+0xcd/0x170
[ 1546.148961][   T10]      do_syscall_64+0xc6/0x1e0
[ 1546.148961][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1546.148961][   T10] 
[ 1546.150499][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1546.150499][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1546.150499][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1546.150499][   T10]      ipv6_find_idev+0x102/0x170
[ 1546.150499][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1546.150499][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1546.150499][   T10]      netlink_rcv_skb+0x130/0x360
[ 1546.150499][   T10]      netlink_unicast+0x449/0x710
[ 1546.150499][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1546.150499][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1546.150499][   T10]      ___sys_sendmsg+0xee/0x170
[ 1546.150499][   T10]      __sys_sendmsg+0xcd/0x170
[ 1546.150499][   T10]      do_syscall_64+0xc6/0x1e0
[ 1546.150499][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1546.150499][   T10] 
[ 1556.393779][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1556.394222][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1556.394222][   T10]      dst_init+0x84/0x4a0
[ 1556.394222][   T10]      dst_alloc+0x97/0x150
[ 1556.394222][   T10]      ip6_dst_alloc+0x23/0x90
[ 1556.394222][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1556.394222][   T10]      ip6_pol_route+0x56f/0x840
[ 1556.394222][   T10]      fib6_rule_lookup+0x456/0x630
[ 1556.394222][   T10]      ip6_route_input+0x59c/0xa50
[ 1556.394222][   T10]      ipv6_rcv+0x397/0x810
[ 1556.394222][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1556.394222][   T10]      process_backlog+0x101/0x620
[ 1556.394222][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1556.394222][   T10]      net_rx_action+0x495/0xbe0
[ 1556.394222][   T10]      __do_softirq+0x1b5/0x7f6
[ 1556.394222][   T10] 
[ 1556.395920][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1556.395920][   T10]      netdev_get_by_index+0x5e/0x80
[ 1556.395920][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1556.395920][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1556.395920][   T10]      ip6_route_add+0x1c/0x140
[ 1556.395920][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1556.395920][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1556.395920][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1556.395920][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1556.395920][   T10]      netlink_rcv_skb+0x130/0x360
[ 1556.395920][   T10]      netlink_unicast+0x449/0x710
[ 1556.395920][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1556.395920][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1556.395920][   T10]      ___sys_sendmsg+0xee/0x170
[ 1556.395920][   T10]      __sys_sendmsg+0xcd/0x170
[ 1556.395920][   T10]      do_syscall_64+0xc6/0x1e0
[ 1556.395920][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1556.395920][   T10] 
[ 1556.397931][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1556.397931][   T10]      netdev_get_by_index+0x5e/0x80
[ 1556.397931][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1556.397931][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1556.397931][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1556.397931][   T10]      ipv6_add_addr+0x411/0x2000
[ 1556.397931][   T10]      inet6_addr_add+0x30e/0xa40
[ 1556.397931][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1556.397931][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1556.397931][   T10]      netlink_rcv_skb+0x130/0x360
[ 1556.397931][   T10]      netlink_unicast+0x449/0x710
[ 1556.397931][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1556.397931][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1556.397931][   T10]      ___sys_sendmsg+0xee/0x170
[ 1556.397931][   T10]      __sys_sendmsg+0xcd/0x170
[ 1556.397931][   T10]      do_syscall_64+0xc6/0x1e0
[ 1556.397931][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1556.397931][   T10] 
[ 1556.399937][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1556.399937][   T10]      netdev_get_by_index+0x5e/0x80
[ 1556.399937][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1556.399937][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1556.399937][   T10]      ip6_route_add+0x1c/0x140
[ 1556.399937][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1556.399937][   T10]      addrconf_add_dev+0xe2/0x170
[ 1556.399937][   T10]      inet6_addr_add+0x12f/0xa40
[ 1556.399937][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1556.399937][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1556.399937][   T10]      netlink_rcv_skb+0x130/0x360
[ 1556.399937][   T10]      netlink_unicast+0x449/0x710
[ 1556.399937][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1556.399937][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1556.399937][   T10]      ___sys_sendmsg+0xee/0x170
[ 1556.399937][   T10]      __sys_sendmsg+0xcd/0x170
[ 1556.399937][   T10]      do_syscall_64+0xc6/0x1e0
[ 1556.399937][   T10] 
[ 1556.401904][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1556.401904][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1556.401904][   T10]      ipv6_find_idev+0x102/0x170
[ 1556.401904][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1556.401904][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1556.401904][   T10]      netlink_rcv_skb+0x130/0x360
[ 1556.401904][   T10]      netlink_unicast+0x449/0x710
[ 1556.401904][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1556.401904][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1556.401904][   T10]      ___sys_sendmsg+0xee/0x170
[ 1556.401904][   T10]      __sys_sendmsg+0xcd/0x170
[ 1556.401904][   T10]      do_syscall_64+0xc6/0x1e0
[ 1556.401904][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1556.401904][   T10] 
[ 1556.403455][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1556.403455][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1556.403455][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1556.403455][   T10]      ipv6_find_idev+0x102/0x170
[ 1556.403455][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1556.403455][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1556.403455][   T10]      netlink_rcv_skb+0x130/0x360
[ 1556.403455][   T10]      netlink_unicast+0x449/0x710
[ 1556.403455][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1556.403455][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1556.403455][   T10]      ___sys_sendmsg+0xee/0x170
[ 1556.403455][   T10]      __sys_sendmsg+0xcd/0x170
[ 1556.403455][   T10]      do_syscall_64+0xc6/0x1e0
[ 1556.403455][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1556.403455][   T10] 
[ 1556.405173][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1556.405421][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1556.405421][   T10]      dst_init+0x84/0x4a0
[ 1556.405421][   T10]      dst_alloc+0x97/0x150
[ 1556.405421][   T10]      ip6_dst_alloc+0x23/0x90
[ 1556.405421][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1556.405421][   T10]      ip6_pol_route+0x56f/0x840
[ 1556.405421][   T10]      fib6_rule_lookup+0x456/0x630
[ 1556.405421][   T10]      ip6_route_input+0x59c/0xa50
[ 1556.405421][   T10]      ipv6_rcv+0x397/0x810
[ 1556.405421][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1556.405421][   T10]      process_backlog+0x101/0x620
[ 1556.405421][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1556.405421][   T10]      net_rx_action+0x495/0xbe0
[ 1556.405421][   T10]      __do_softirq+0x1b5/0x7f6
[ 1556.405421][   T10] 
[ 1556.407055][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1556.407055][   T10]      netdev_get_by_index+0x5e/0x80
[ 1556.407055][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1556.407055][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1556.407055][   T10]      ip6_route_add+0x1c/0x140
[ 1556.407055][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1556.407055][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1556.407055][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1556.407055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1556.407055][   T10]      netlink_rcv_skb+0x130/0x360
[ 1556.407055][   T10]      netlink_unicast+0x449/0x710
[ 1556.407055][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1556.407055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1556.407055][   T10]      ___sys_sendmsg+0xee/0x170
[ 1556.407055][   T10]      __sys_sendmsg+0xcd/0x170
[ 1556.407055][   T10]      do_syscall_64+0xc6/0x1e0
[ 1556.407055][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1556.407055][   T10] 
[ 1556.409054][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1556.409054][   T10]      netdev_get_by_index+0x5e/0x80
[ 1556.409054][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1556.409054][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1556.409054][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1556.409054][   T10]      ipv6_add_addr+0x411/0x2000
[ 1556.409054][   T10]      inet6_addr_add+0x30e/0xa40
[ 1556.409054][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1556.409054][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1556.409054][   T10]      netlink_rcv_skb+0x130/0x360
[ 1556.409054][   T10]      netlink_unicast+0x449/0x710
[ 1556.409054][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1556.409054][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1556.409054][   T10]      ___sys_sendmsg+0xee/0x170
[ 1556.409054][   T10]      __sys_sendmsg+0xcd/0x170
[ 1556.409054][   T10]      do_syscall_64+0xc6/0x1e0
[ 1556.409054][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1556.409054][   T10] 
[ 1556.411057][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1556.411057][   T10]      netdev_get_by_index+0x5e/0x80
[ 1556.411057][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1556.411057][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1556.411057][   T10]      ip6_route_add+0x1c/0x140
[ 1556.411057][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1556.411057][   T10]      addrconf_add_dev+0xe2/0x170
[ 1556.411057][   T10]      inet6_addr_add+0x12f/0xa40
[ 1556.411057][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1556.411057][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1556.411057][   T10]      netlink_rcv_skb+0x130/0x360
[ 1556.411057][   T10]      netlink_unicast+0x449/0x710
[ 1556.411057][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1556.411057][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1556.411057][   T10]      ___sys_sendmsg+0xee/0x170
[ 1556.411057][   T10]      __sys_sendmsg+0xcd/0x170
[ 1556.411057][   T10]      do_syscall_64+0xc6/0x1e0
[ 1556.411057][   T10] 
[ 1556.413021][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1556.413021][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1556.413021][   T10]      ipv6_find_idev+0x102/0x170
[ 1556.413021][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1556.413021][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1556.413021][   T10]      netlink_rcv_skb+0x130/0x360
[ 1556.413021][   T10]      netlink_unicast+0x449/0x710
[ 1556.413021][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1556.413021][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1556.413021][   T10]      ___sys_sendmsg+0xee/0x170
[ 1556.413021][   T10]      __sys_sendmsg+0xcd/0x170
[ 1556.413021][   T10]      do_syscall_64+0xc6/0x1e0
[ 1556.413021][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1556.413021][   T10] 
[ 1556.414561][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1556.414561][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1556.414561][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1556.414561][   T10]      ipv6_find_idev+0x102/0x170
[ 1556.414561][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1556.414561][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1556.414561][   T10]      netlink_rcv_skb+0x130/0x360
[ 1556.414561][   T10]      netlink_unicast+0x449/0x710
[ 1556.414561][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1556.414561][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1556.414561][   T10]      ___sys_sendmsg+0xee/0x170
[ 1556.414561][   T10]      __sys_sendmsg+0xcd/0x170
[ 1556.414561][   T10]      do_syscall_64+0xc6/0x1e0
[ 1556.414561][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1556.414561][   T10] 
[ 1566.657777][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1566.658277][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1566.658277][   T10]      dst_init+0x84/0x4a0
[ 1566.658277][   T10]      dst_alloc+0x97/0x150
[ 1566.658277][   T10]      ip6_dst_alloc+0x23/0x90
[ 1566.658277][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1566.658277][   T10]      ip6_pol_route+0x56f/0x840
[ 1566.658277][   T10]      fib6_rule_lookup+0x456/0x630
[ 1566.658277][   T10]      ip6_route_input+0x59c/0xa50
[ 1566.658277][   T10]      ipv6_rcv+0x397/0x810
[ 1566.658277][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1566.658277][   T10]      process_backlog+0x101/0x620
[ 1566.658277][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1566.658277][   T10]      net_rx_action+0x495/0xbe0
[ 1566.658277][   T10]      __do_softirq+0x1b5/0x7f6
[ 1566.658277][   T10] 
[ 1566.659995][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1566.659995][   T10]      netdev_get_by_index+0x5e/0x80
[ 1566.659995][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1566.659995][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1566.659995][   T10]      ip6_route_add+0x1c/0x140
[ 1566.659995][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1566.659995][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1566.659995][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1566.659995][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1566.659995][   T10]      netlink_rcv_skb+0x130/0x360
[ 1566.659995][   T10]      netlink_unicast+0x449/0x710
[ 1566.659995][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1566.659995][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1566.659995][   T10]      ___sys_sendmsg+0xee/0x170
[ 1566.659995][   T10]      __sys_sendmsg+0xcd/0x170
[ 1566.659995][   T10]      do_syscall_64+0xc6/0x1e0
[ 1566.659995][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1566.659995][   T10] 
[ 1566.662048][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1566.662048][   T10]      netdev_get_by_index+0x5e/0x80
[ 1566.662048][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1566.662048][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1566.662048][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1566.662048][   T10]      ipv6_add_addr+0x411/0x2000
[ 1566.662048][   T10]      inet6_addr_add+0x30e/0xa40
[ 1566.662048][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1566.662048][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1566.662048][   T10]      netlink_rcv_skb+0x130/0x360
[ 1566.662048][   T10]      netlink_unicast+0x449/0x710
[ 1566.662048][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1566.662048][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1566.662048][   T10]      ___sys_sendmsg+0xee/0x170
[ 1566.662048][   T10]      __sys_sendmsg+0xcd/0x170
[ 1566.662048][   T10]      do_syscall_64+0xc6/0x1e0
[ 1566.662048][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1566.662048][   T10] 
[ 1566.664111][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1566.664111][   T10]      netdev_get_by_index+0x5e/0x80
[ 1566.664111][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1566.664111][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1566.664111][   T10]      ip6_route_add+0x1c/0x140
[ 1566.664111][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1566.664111][   T10]      addrconf_add_dev+0xe2/0x170
[ 1566.664111][   T10]      inet6_addr_add+0x12f/0xa40
[ 1566.664111][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1566.664111][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1566.664111][   T10]      netlink_rcv_skb+0x130/0x360
[ 1566.664111][   T10]      netlink_unicast+0x449/0x710
[ 1566.664111][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1566.664111][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1566.664111][   T10]      ___sys_sendmsg+0xee/0x170
[ 1566.664111][   T10]      __sys_sendmsg+0xcd/0x170
[ 1566.664111][   T10]      do_syscall_64+0xc6/0x1e0
[ 1566.664111][   T10] 
[ 1566.666135][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1566.666135][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1566.666135][   T10]      ipv6_find_idev+0x102/0x170
[ 1566.666135][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1566.666135][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1566.666135][   T10]      netlink_rcv_skb+0x130/0x360
[ 1566.666135][   T10]      netlink_unicast+0x449/0x710
[ 1566.666135][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1566.666135][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1566.666135][   T10]      ___sys_sendmsg+0xee/0x170
[ 1566.666135][   T10]      __sys_sendmsg+0xcd/0x170
[ 1566.666135][   T10]      do_syscall_64+0xc6/0x1e0
[ 1566.666135][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1566.666135][   T10] 
[ 1566.667717][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1566.667717][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1566.667717][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1566.667717][   T10]      ipv6_find_idev+0x102/0x170
[ 1566.667717][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1566.667717][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1566.667717][   T10]      netlink_rcv_skb+0x130/0x360
[ 1566.667717][   T10]      netlink_unicast+0x449/0x710
[ 1566.667717][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1566.667717][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1566.667717][   T10]      ___sys_sendmsg+0xee/0x170
[ 1566.667717][   T10]      __sys_sendmsg+0xcd/0x170
[ 1566.667717][   T10]      do_syscall_64+0xc6/0x1e0
[ 1566.667717][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1566.667717][   T10] 
[ 1566.669450][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1566.669701][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1566.669701][   T10]      dst_init+0x84/0x4a0
[ 1566.669701][   T10]      dst_alloc+0x97/0x150
[ 1566.669701][   T10]      ip6_dst_alloc+0x23/0x90
[ 1566.669701][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1566.669701][   T10]      ip6_pol_route+0x56f/0x840
[ 1566.669701][   T10]      fib6_rule_lookup+0x456/0x630
[ 1566.669701][   T10]      ip6_route_input+0x59c/0xa50
[ 1566.669701][   T10]      ipv6_rcv+0x397/0x810
[ 1566.669701][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1566.669701][   T10]      process_backlog+0x101/0x620
[ 1566.669701][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1566.669701][   T10]      net_rx_action+0x495/0xbe0
[ 1566.669701][   T10]      __do_softirq+0x1b5/0x7f6
[ 1566.669701][   T10] 
[ 1566.671395][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1566.671395][   T10]      netdev_get_by_index+0x5e/0x80
[ 1566.671395][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1566.671395][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1566.671395][   T10]      ip6_route_add+0x1c/0x140
[ 1566.671395][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1566.671395][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1566.671395][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1566.671395][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1566.671395][   T10]      netlink_rcv_skb+0x130/0x360
[ 1566.671395][   T10]      netlink_unicast+0x449/0x710
[ 1566.671395][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1566.671395][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1566.671395][   T10]      ___sys_sendmsg+0xee/0x170
[ 1566.671395][   T10]      __sys_sendmsg+0xcd/0x170
[ 1566.671395][   T10]      do_syscall_64+0xc6/0x1e0
[ 1566.671395][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1566.671395][   T10] 
[ 1566.673441][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1566.673441][   T10]      netdev_get_by_index+0x5e/0x80
[ 1566.673441][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1566.673441][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1566.673441][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1566.673441][   T10]      ipv6_add_addr+0x411/0x2000
[ 1566.673441][   T10]      inet6_addr_add+0x30e/0xa40
[ 1566.673441][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1566.673441][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1566.673441][   T10]      netlink_rcv_skb+0x130/0x360
[ 1566.673441][   T10]      netlink_unicast+0x449/0x710
[ 1566.673441][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1566.673441][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1566.673441][   T10]      ___sys_sendmsg+0xee/0x170
[ 1566.673441][   T10]      __sys_sendmsg+0xcd/0x170
[ 1566.673441][   T10]      do_syscall_64+0xc6/0x1e0
[ 1566.673441][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1566.673441][   T10] 
[ 1566.675494][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1566.675494][   T10]      netdev_get_by_index+0x5e/0x80
[ 1566.675494][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1566.675494][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1566.675494][   T10]      ip6_route_add+0x1c/0x140
[ 1566.675494][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1566.675494][   T10]      addrconf_add_dev+0xe2/0x170
[ 1566.675494][   T10]      inet6_addr_add+0x12f/0xa40
[ 1566.675494][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1566.675494][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1566.675494][   T10]      netlink_rcv_skb+0x130/0x360
[ 1566.675494][   T10]      netlink_unicast+0x449/0x710
[ 1566.675494][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1566.675494][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1566.675494][   T10]      ___sys_sendmsg+0xee/0x170
[ 1566.675494][   T10]      __sys_sendmsg+0xcd/0x170
[ 1566.675494][   T10]      do_syscall_64+0xc6/0x1e0
[ 1566.675494][   T10] 
[ 1566.677504][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1566.677504][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1566.677504][   T10]      ipv6_find_idev+0x102/0x170
[ 1566.677504][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1566.677504][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1566.677504][   T10]      netlink_rcv_skb+0x130/0x360
[ 1566.677504][   T10]      netlink_unicast+0x449/0x710
[ 1566.677504][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1566.677504][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1566.677504][   T10]      ___sys_sendmsg+0xee/0x170
[ 1566.677504][   T10]      __sys_sendmsg+0xcd/0x170
[ 1566.677504][   T10]      do_syscall_64+0xc6/0x1e0
[ 1566.677504][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1566.677504][   T10] 
[ 1566.679082][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1566.679082][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1566.679082][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1566.679082][   T10]      ipv6_find_idev+0x102/0x170
[ 1566.679082][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1566.679082][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1566.679082][   T10]      netlink_rcv_skb+0x130/0x360
[ 1566.679082][   T10]      netlink_unicast+0x449/0x710
[ 1566.679082][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1566.679082][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1566.679082][   T10]      ___sys_sendmsg+0xee/0x170
[ 1566.679082][   T10]      __sys_sendmsg+0xcd/0x170
[ 1566.679082][   T10]      do_syscall_64+0xc6/0x1e0
[ 1566.679082][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1566.679082][   T10] 
[ 1576.921806][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1576.922261][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1576.922261][   T10]      dst_init+0x84/0x4a0
[ 1576.922261][   T10]      dst_alloc+0x97/0x150
[ 1576.922261][   T10]      ip6_dst_alloc+0x23/0x90
[ 1576.922261][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1576.922261][   T10]      ip6_pol_route+0x56f/0x840
[ 1576.922261][   T10]      fib6_rule_lookup+0x456/0x630
[ 1576.922261][   T10]      ip6_route_input+0x59c/0xa50
[ 1576.922261][   T10]      ipv6_rcv+0x397/0x810
[ 1576.922261][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1576.922261][   T10]      process_backlog+0x101/0x620
[ 1576.922261][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1576.922261][   T10]      net_rx_action+0x495/0xbe0
[ 1576.922261][   T10]      __do_softirq+0x1b5/0x7f6
[ 1576.922261][   T10] 
[ 1576.923989][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1576.923989][   T10]      netdev_get_by_index+0x5e/0x80
[ 1576.923989][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1576.923989][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1576.923989][   T10]      ip6_route_add+0x1c/0x140
[ 1576.923989][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1576.923989][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1576.923989][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1576.923989][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1576.923989][   T10]      netlink_rcv_skb+0x130/0x360
[ 1576.923989][   T10]      netlink_unicast+0x449/0x710
[ 1576.923989][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1576.923989][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1576.923989][   T10]      ___sys_sendmsg+0xee/0x170
[ 1576.923989][   T10]      __sys_sendmsg+0xcd/0x170
[ 1576.923989][   T10]      do_syscall_64+0xc6/0x1e0
[ 1576.923989][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1576.923989][   T10] 
[ 1576.926068][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1576.926068][   T10]      netdev_get_by_index+0x5e/0x80
[ 1576.926068][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1576.926068][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1576.926068][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1576.926068][   T10]      ipv6_add_addr+0x411/0x2000
[ 1576.926068][   T10]      inet6_addr_add+0x30e/0xa40
[ 1576.926068][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1576.926068][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1576.926068][   T10]      netlink_rcv_skb+0x130/0x360
[ 1576.926068][   T10]      netlink_unicast+0x449/0x710
[ 1576.926068][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1576.926068][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1576.926068][   T10]      ___sys_sendmsg+0xee/0x170
[ 1576.926068][   T10]      __sys_sendmsg+0xcd/0x170
[ 1576.926068][   T10]      do_syscall_64+0xc6/0x1e0
[ 1576.926068][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1576.926068][   T10] 
[ 1576.928134][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1576.928134][   T10]      netdev_get_by_index+0x5e/0x80
[ 1576.928134][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1576.928134][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1576.928134][   T10]      ip6_route_add+0x1c/0x140
[ 1576.928134][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1576.928134][   T10]      addrconf_add_dev+0xe2/0x170
[ 1576.928134][   T10]      inet6_addr_add+0x12f/0xa40
[ 1576.928134][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1576.928134][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1576.928134][   T10]      netlink_rcv_skb+0x130/0x360
[ 1576.928134][   T10]      netlink_unicast+0x449/0x710
[ 1576.928134][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1576.928134][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1576.928134][   T10]      ___sys_sendmsg+0xee/0x170
[ 1576.928134][   T10]      __sys_sendmsg+0xcd/0x170
[ 1576.928134][   T10]      do_syscall_64+0xc6/0x1e0
[ 1576.928134][   T10] 
[ 1576.930156][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1576.930156][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1576.930156][   T10]      ipv6_find_idev+0x102/0x170
[ 1576.930156][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1576.930156][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1576.930156][   T10]      netlink_rcv_skb+0x130/0x360
[ 1576.930156][   T10]      netlink_unicast+0x449/0x710
[ 1576.930156][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1576.930156][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1576.930156][   T10]      ___sys_sendmsg+0xee/0x170
[ 1576.930156][   T10]      __sys_sendmsg+0xcd/0x170
[ 1576.930156][   T10]      do_syscall_64+0xc6/0x1e0
[ 1576.930156][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1576.930156][   T10] 
[ 1576.931743][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1576.931743][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1576.931743][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1576.931743][   T10]      ipv6_find_idev+0x102/0x170
[ 1576.931743][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1576.931743][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1576.931743][   T10]      netlink_rcv_skb+0x130/0x360
[ 1576.931743][   T10]      netlink_unicast+0x449/0x710
[ 1576.931743][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1576.931743][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1576.931743][   T10]      ___sys_sendmsg+0xee/0x170
[ 1576.931743][   T10]      __sys_sendmsg+0xcd/0x170
[ 1576.931743][   T10]      do_syscall_64+0xc6/0x1e0
[ 1576.931743][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1576.931743][   T10] 
[ 1576.933478][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1576.933745][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1576.933745][   T10]      dst_init+0x84/0x4a0
[ 1576.933745][   T10]      dst_alloc+0x97/0x150
[ 1576.933745][   T10]      ip6_dst_alloc+0x23/0x90
[ 1576.933745][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1576.933745][   T10]      ip6_pol_route+0x56f/0x840
[ 1576.933745][   T10]      fib6_rule_lookup+0x456/0x630
[ 1576.933745][   T10]      ip6_route_input+0x59c/0xa50
[ 1576.933745][   T10]      ipv6_rcv+0x397/0x810
[ 1576.933745][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1576.933745][   T10]      process_backlog+0x101/0x620
[ 1576.933745][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1576.933745][   T10]      net_rx_action+0x495/0xbe0
[ 1576.933745][   T10]      __do_softirq+0x1b5/0x7f6
[ 1576.933745][   T10] 
[ 1576.935439][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1576.935439][   T10]      netdev_get_by_index+0x5e/0x80
[ 1576.935439][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1576.935439][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1576.935439][   T10]      ip6_route_add+0x1c/0x140
[ 1576.935439][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1576.935439][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1576.935439][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1576.935439][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1576.935439][   T10]      netlink_rcv_skb+0x130/0x360
[ 1576.935439][   T10]      netlink_unicast+0x449/0x710
[ 1576.935439][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1576.935439][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1576.935439][   T10]      ___sys_sendmsg+0xee/0x170
[ 1576.935439][   T10]      __sys_sendmsg+0xcd/0x170
[ 1576.935439][   T10]      do_syscall_64+0xc6/0x1e0
[ 1576.935439][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1576.935439][   T10] 
[ 1576.937499][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1576.937499][   T10]      netdev_get_by_index+0x5e/0x80
[ 1576.937499][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1576.937499][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1576.937499][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1576.937499][   T10]      ipv6_add_addr+0x411/0x2000
[ 1576.937499][   T10]      inet6_addr_add+0x30e/0xa40
[ 1576.937499][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1576.937499][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1576.937499][   T10]      netlink_rcv_skb+0x130/0x360
[ 1576.937499][   T10]      netlink_unicast+0x449/0x710
[ 1576.937499][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1576.937499][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1576.937499][   T10]      ___sys_sendmsg+0xee/0x170
[ 1576.937499][   T10]      __sys_sendmsg+0xcd/0x170
[ 1576.937499][   T10]      do_syscall_64+0xc6/0x1e0
[ 1576.937499][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1576.937499][   T10] 
[ 1576.939549][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1576.939549][   T10]      netdev_get_by_index+0x5e/0x80
[ 1576.939549][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1576.939549][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1576.939549][   T10]      ip6_route_add+0x1c/0x140
[ 1576.939549][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1576.939549][   T10]      addrconf_add_dev+0xe2/0x170
[ 1576.939549][   T10]      inet6_addr_add+0x12f/0xa40
[ 1576.939549][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1576.939549][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1576.939549][   T10]      netlink_rcv_skb+0x130/0x360
[ 1576.939549][   T10]      netlink_unicast+0x449/0x710
[ 1576.939549][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1576.939549][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1576.939549][   T10]      ___sys_sendmsg+0xee/0x170
[ 1576.939549][   T10]      __sys_sendmsg+0xcd/0x170
[ 1576.939549][   T10]      do_syscall_64+0xc6/0x1e0
[ 1576.939549][   T10] 
[ 1576.941567][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1576.941567][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1576.941567][   T10]      ipv6_find_idev+0x102/0x170
[ 1576.941567][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1576.941567][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1576.941567][   T10]      netlink_rcv_skb+0x130/0x360
[ 1576.941567][   T10]      netlink_unicast+0x449/0x710
[ 1576.941567][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1576.941567][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1576.941567][   T10]      ___sys_sendmsg+0xee/0x170
[ 1576.941567][   T10]      __sys_sendmsg+0xcd/0x170
[ 1576.941567][   T10]      do_syscall_64+0xc6/0x1e0
[ 1576.941567][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1576.941567][   T10] 
[ 1576.943149][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1576.943149][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1576.943149][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1576.943149][   T10]      ipv6_find_idev+0x102/0x170
[ 1576.943149][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1576.943149][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1576.943149][   T10]      netlink_rcv_skb+0x130/0x360
[ 1576.943149][   T10]      netlink_unicast+0x449/0x710
[ 1576.943149][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1576.943149][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1576.943149][   T10]      ___sys_sendmsg+0xee/0x170
[ 1576.943149][   T10]      __sys_sendmsg+0xcd/0x170
[ 1576.943149][   T10]      do_syscall_64+0xc6/0x1e0
[ 1576.943149][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1576.943149][   T10] 
[ 1587.185719][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1587.186192][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1587.186192][   T10]      dst_init+0x84/0x4a0
[ 1587.186192][   T10]      dst_alloc+0x97/0x150
[ 1587.186192][   T10]      ip6_dst_alloc+0x23/0x90
[ 1587.186192][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1587.186192][   T10]      ip6_pol_route+0x56f/0x840
[ 1587.186192][   T10]      fib6_rule_lookup+0x456/0x630
[ 1587.186192][   T10]      ip6_route_input+0x59c/0xa50
[ 1587.186192][   T10]      ipv6_rcv+0x397/0x810
[ 1587.186192][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1587.186192][   T10]      process_backlog+0x101/0x620
[ 1587.186192][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1587.186192][   T10]      net_rx_action+0x495/0xbe0
[ 1587.186192][   T10]      __do_softirq+0x1b5/0x7f6
[ 1587.186192][   T10] 
[ 1587.187908][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1587.187908][   T10]      netdev_get_by_index+0x5e/0x80
[ 1587.187908][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1587.187908][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1587.187908][   T10]      ip6_route_add+0x1c/0x140
[ 1587.187908][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1587.187908][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1587.187908][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1587.187908][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1587.187908][   T10]      netlink_rcv_skb+0x130/0x360
[ 1587.187908][   T10]      netlink_unicast+0x449/0x710
[ 1587.187908][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1587.187908][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1587.187908][   T10]      ___sys_sendmsg+0xee/0x170
[ 1587.187908][   T10]      __sys_sendmsg+0xcd/0x170
[ 1587.187908][   T10]      do_syscall_64+0xc6/0x1e0
[ 1587.187908][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1587.187908][   T10] 
[ 1587.189975][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1587.189975][   T10]      netdev_get_by_index+0x5e/0x80
[ 1587.189975][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1587.189975][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1587.189975][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1587.189975][   T10]      ipv6_add_addr+0x411/0x2000
[ 1587.189975][   T10]      inet6_addr_add+0x30e/0xa40
[ 1587.189975][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1587.189975][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1587.189975][   T10]      netlink_rcv_skb+0x130/0x360
[ 1587.189975][   T10]      netlink_unicast+0x449/0x710
[ 1587.189975][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1587.189975][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1587.189975][   T10]      ___sys_sendmsg+0xee/0x170
[ 1587.189975][   T10]      __sys_sendmsg+0xcd/0x170
[ 1587.189975][   T10]      do_syscall_64+0xc6/0x1e0
[ 1587.189975][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1587.189975][   T10] 
[ 1587.192032][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1587.192032][   T10]      netdev_get_by_index+0x5e/0x80
[ 1587.192032][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1587.192032][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1587.192032][   T10]      ip6_route_add+0x1c/0x140
[ 1587.192032][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1587.192032][   T10]      addrconf_add_dev+0xe2/0x170
[ 1587.192032][   T10]      inet6_addr_add+0x12f/0xa40
[ 1587.192032][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1587.192032][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1587.192032][   T10]      netlink_rcv_skb+0x130/0x360
[ 1587.192032][   T10]      netlink_unicast+0x449/0x710
[ 1587.192032][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1587.192032][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1587.192032][   T10]      ___sys_sendmsg+0xee/0x170
[ 1587.192032][   T10]      __sys_sendmsg+0xcd/0x170
[ 1587.192032][   T10]      do_syscall_64+0xc6/0x1e0
[ 1587.192032][   T10] 
[ 1587.194050][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1587.194050][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1587.194050][   T10]      ipv6_find_idev+0x102/0x170
[ 1587.194050][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1587.194050][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1587.194050][   T10]      netlink_rcv_skb+0x130/0x360
[ 1587.194050][   T10]      netlink_unicast+0x449/0x710
[ 1587.194050][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1587.194050][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1587.194050][   T10]      ___sys_sendmsg+0xee/0x170
[ 1587.194050][   T10]      __sys_sendmsg+0xcd/0x170
[ 1587.194050][   T10]      do_syscall_64+0xc6/0x1e0
[ 1587.194050][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1587.194050][   T10] 
[ 1587.195640][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1587.195640][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1587.195640][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1587.195640][   T10]      ipv6_find_idev+0x102/0x170
[ 1587.195640][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1587.195640][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1587.195640][   T10]      netlink_rcv_skb+0x130/0x360
[ 1587.195640][   T10]      netlink_unicast+0x449/0x710
[ 1587.195640][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1587.195640][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1587.195640][   T10]      ___sys_sendmsg+0xee/0x170
[ 1587.195640][   T10]      __sys_sendmsg+0xcd/0x170
[ 1587.195640][   T10]      do_syscall_64+0xc6/0x1e0
[ 1587.195640][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1587.195640][   T10] 
[ 1587.197377][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1587.197625][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1587.197625][   T10]      dst_init+0x84/0x4a0
[ 1587.197625][   T10]      dst_alloc+0x97/0x150
[ 1587.197625][   T10]      ip6_dst_alloc+0x23/0x90
[ 1587.197625][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1587.197625][   T10]      ip6_pol_route+0x56f/0x840
[ 1587.197625][   T10]      fib6_rule_lookup+0x456/0x630
[ 1587.197625][   T10]      ip6_route_input+0x59c/0xa50
[ 1587.197625][   T10]      ipv6_rcv+0x397/0x810
[ 1587.197625][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1587.197625][   T10]      process_backlog+0x101/0x620
[ 1587.197625][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1587.197625][   T10]      net_rx_action+0x495/0xbe0
[ 1587.197625][   T10]      __do_softirq+0x1b5/0x7f6
[ 1587.197625][   T10] 
[ 1587.199309][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1587.199309][   T10]      netdev_get_by_index+0x5e/0x80
[ 1587.199309][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1587.199309][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1587.199309][   T10]      ip6_route_add+0x1c/0x140
[ 1587.199309][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1587.199309][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1587.199309][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1587.199309][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1587.199309][   T10]      netlink_rcv_skb+0x130/0x360
[ 1587.199309][   T10]      netlink_unicast+0x449/0x710
[ 1587.199309][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1587.199309][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1587.199309][   T10]      ___sys_sendmsg+0xee/0x170
[ 1587.199309][   T10]      __sys_sendmsg+0xcd/0x170
[ 1587.199309][   T10]      do_syscall_64+0xc6/0x1e0
[ 1587.199309][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1587.199309][   T10] 
[ 1587.201365][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1587.201365][   T10]      netdev_get_by_index+0x5e/0x80
[ 1587.201365][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1587.201365][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1587.201365][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1587.201365][   T10]      ipv6_add_addr+0x411/0x2000
[ 1587.201365][   T10]      inet6_addr_add+0x30e/0xa40
[ 1587.201365][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1587.201365][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1587.201365][   T10]      netlink_rcv_skb+0x130/0x360
[ 1587.201365][   T10]      netlink_unicast+0x449/0x710
[ 1587.201365][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1587.201365][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1587.201365][   T10]      ___sys_sendmsg+0xee/0x170
[ 1587.201365][   T10]      __sys_sendmsg+0xcd/0x170
[ 1587.201365][   T10]      do_syscall_64+0xc6/0x1e0
[ 1587.201365][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1587.201365][   T10] 
[ 1587.203430][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1587.203430][   T10]      netdev_get_by_index+0x5e/0x80
[ 1587.203430][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1587.203430][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1587.203430][   T10]      ip6_route_add+0x1c/0x140
[ 1587.203430][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1587.203430][   T10]      addrconf_add_dev+0xe2/0x170
[ 1587.203430][   T10]      inet6_addr_add+0x12f/0xa40
[ 1587.203430][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1587.203430][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1587.203430][   T10]      netlink_rcv_skb+0x130/0x360
[ 1587.203430][   T10]      netlink_unicast+0x449/0x710
[ 1587.203430][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1587.203430][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1587.203430][   T10]      ___sys_sendmsg+0xee/0x170
[ 1587.203430][   T10]      __sys_sendmsg+0xcd/0x170
[ 1587.203430][   T10]      do_syscall_64+0xc6/0x1e0
[ 1587.203430][   T10] 
[ 1587.205452][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1587.205452][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1587.205452][   T10]      ipv6_find_idev+0x102/0x170
[ 1587.205452][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1587.205452][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1587.205452][   T10]      netlink_rcv_skb+0x130/0x360
[ 1587.205452][   T10]      netlink_unicast+0x449/0x710
[ 1587.205452][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1587.205452][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1587.205452][   T10]      ___sys_sendmsg+0xee/0x170
[ 1587.205452][   T10]      __sys_sendmsg+0xcd/0x170
[ 1587.205452][   T10]      do_syscall_64+0xc6/0x1e0
[ 1587.205452][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1587.205452][   T10] 
[ 1587.207029][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1587.207029][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1587.207029][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1587.207029][   T10]      ipv6_find_idev+0x102/0x170
[ 1587.207029][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1587.207029][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1587.207029][   T10]      netlink_rcv_skb+0x130/0x360
[ 1587.207029][   T10]      netlink_unicast+0x449/0x710
[ 1587.207029][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1587.207029][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1587.207029][   T10]      ___sys_sendmsg+0xee/0x170
[ 1587.207029][   T10]      __sys_sendmsg+0xcd/0x170
[ 1587.207029][   T10]      do_syscall_64+0xc6/0x1e0
[ 1587.207029][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1587.207029][   T10] 
[ 1597.449774][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1597.450234][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1597.450234][   T10]      dst_init+0x84/0x4a0
[ 1597.450234][   T10]      dst_alloc+0x97/0x150
[ 1597.450234][   T10]      ip6_dst_alloc+0x23/0x90
[ 1597.450234][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1597.450234][   T10]      ip6_pol_route+0x56f/0x840
[ 1597.450234][   T10]      fib6_rule_lookup+0x456/0x630
[ 1597.450234][   T10]      ip6_route_input+0x59c/0xa50
[ 1597.450234][   T10]      ipv6_rcv+0x397/0x810
[ 1597.450234][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1597.450234][   T10]      process_backlog+0x101/0x620
[ 1597.450234][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1597.450234][   T10]      net_rx_action+0x495/0xbe0
[ 1597.450234][   T10]      __do_softirq+0x1b5/0x7f6
[ 1597.450234][   T10] 
[ 1597.451962][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1597.451962][   T10]      netdev_get_by_index+0x5e/0x80
[ 1597.451962][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1597.451962][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1597.451962][   T10]      ip6_route_add+0x1c/0x140
[ 1597.451962][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1597.451962][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1597.451962][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1597.451962][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1597.451962][   T10]      netlink_rcv_skb+0x130/0x360
[ 1597.451962][   T10]      netlink_unicast+0x449/0x710
[ 1597.451962][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1597.451962][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1597.451962][   T10]      ___sys_sendmsg+0xee/0x170
[ 1597.451962][   T10]      __sys_sendmsg+0xcd/0x170
[ 1597.451962][   T10]      do_syscall_64+0xc6/0x1e0
[ 1597.451962][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1597.451962][   T10] 
[ 1597.454028][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1597.454028][   T10]      netdev_get_by_index+0x5e/0x80
[ 1597.454028][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1597.454028][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1597.454028][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1597.454028][   T10]      ipv6_add_addr+0x411/0x2000
[ 1597.454028][   T10]      inet6_addr_add+0x30e/0xa40
[ 1597.454028][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1597.454028][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1597.454028][   T10]      netlink_rcv_skb+0x130/0x360
[ 1597.454028][   T10]      netlink_unicast+0x449/0x710
[ 1597.454028][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1597.454028][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1597.454028][   T10]      ___sys_sendmsg+0xee/0x170
[ 1597.454028][   T10]      __sys_sendmsg+0xcd/0x170
[ 1597.454028][   T10]      do_syscall_64+0xc6/0x1e0
[ 1597.454028][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1597.454028][   T10] 
[ 1597.456110][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1597.456110][   T10]      netdev_get_by_index+0x5e/0x80
[ 1597.456110][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1597.456110][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1597.456110][   T10]      ip6_route_add+0x1c/0x140
[ 1597.456110][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1597.456110][   T10]      addrconf_add_dev+0xe2/0x170
[ 1597.456110][   T10]      inet6_addr_add+0x12f/0xa40
[ 1597.456110][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1597.456110][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1597.456110][   T10]      netlink_rcv_skb+0x130/0x360
[ 1597.456110][   T10]      netlink_unicast+0x449/0x710
[ 1597.456110][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1597.456110][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1597.456110][   T10]      ___sys_sendmsg+0xee/0x170
[ 1597.456110][   T10]      __sys_sendmsg+0xcd/0x170
[ 1597.456110][   T10]      do_syscall_64+0xc6/0x1e0
[ 1597.456110][   T10] 
[ 1597.458130][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1597.458130][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1597.458130][   T10]      ipv6_find_idev+0x102/0x170
[ 1597.458130][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1597.458130][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1597.458130][   T10]      netlink_rcv_skb+0x130/0x360
[ 1597.458130][   T10]      netlink_unicast+0x449/0x710
[ 1597.458130][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1597.458130][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1597.458130][   T10]      ___sys_sendmsg+0xee/0x170
[ 1597.458130][   T10]      __sys_sendmsg+0xcd/0x170
[ 1597.458130][   T10]      do_syscall_64+0xc6/0x1e0
[ 1597.458130][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1597.458130][   T10] 
[ 1597.459716][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1597.459716][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1597.459716][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1597.459716][   T10]      ipv6_find_idev+0x102/0x170
[ 1597.459716][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1597.459716][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1597.459716][   T10]      netlink_rcv_skb+0x130/0x360
[ 1597.459716][   T10]      netlink_unicast+0x449/0x710
[ 1597.459716][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1597.459716][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1597.459716][   T10]      ___sys_sendmsg+0xee/0x170
[ 1597.459716][   T10]      __sys_sendmsg+0xcd/0x170
[ 1597.459716][   T10]      do_syscall_64+0xc6/0x1e0
[ 1597.459716][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1597.459716][   T10] 
[ 1597.461444][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1597.461691][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1597.461691][   T10]      dst_init+0x84/0x4a0
[ 1597.461691][   T10]      dst_alloc+0x97/0x150
[ 1597.461691][   T10]      ip6_dst_alloc+0x23/0x90
[ 1597.461691][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1597.461691][   T10]      ip6_pol_route+0x56f/0x840
[ 1597.461691][   T10]      fib6_rule_lookup+0x456/0x630
[ 1597.461691][   T10]      ip6_route_input+0x59c/0xa50
[ 1597.461691][   T10]      ipv6_rcv+0x397/0x810
[ 1597.461691][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1597.461691][   T10]      process_backlog+0x101/0x620
[ 1597.461691][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1597.461691][   T10]      net_rx_action+0x495/0xbe0
[ 1597.461691][   T10]      __do_softirq+0x1b5/0x7f6
[ 1597.461691][   T10] 
[ 1597.463376][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1597.463376][   T10]      netdev_get_by_index+0x5e/0x80
[ 1597.463376][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1597.463376][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1597.463376][   T10]      ip6_route_add+0x1c/0x140
[ 1597.463376][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1597.463376][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1597.463376][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1597.463376][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1597.463376][   T10]      netlink_rcv_skb+0x130/0x360
[ 1597.463376][   T10]      netlink_unicast+0x449/0x710
[ 1597.463376][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1597.463376][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1597.463376][   T10]      ___sys_sendmsg+0xee/0x170
[ 1597.463376][   T10]      __sys_sendmsg+0xcd/0x170
[ 1597.463376][   T10]      do_syscall_64+0xc6/0x1e0
[ 1597.463376][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1597.463376][   T10] 
[ 1597.465445][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1597.465445][   T10]      netdev_get_by_index+0x5e/0x80
[ 1597.465445][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1597.465445][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1597.465445][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1597.465445][   T10]      ipv6_add_addr+0x411/0x2000
[ 1597.465445][   T10]      inet6_addr_add+0x30e/0xa40
[ 1597.465445][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1597.465445][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1597.465445][   T10]      netlink_rcv_skb+0x130/0x360
[ 1597.465445][   T10]      netlink_unicast+0x449/0x710
[ 1597.465445][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1597.465445][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1597.465445][   T10]      ___sys_sendmsg+0xee/0x170
[ 1597.465445][   T10]      __sys_sendmsg+0xcd/0x170
[ 1597.465445][   T10]      do_syscall_64+0xc6/0x1e0
[ 1597.465445][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1597.465445][   T10] 
[ 1597.467499][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1597.467499][   T10]      netdev_get_by_index+0x5e/0x80
[ 1597.467499][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1597.467499][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1597.467499][   T10]      ip6_route_add+0x1c/0x140
[ 1597.467499][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1597.467499][   T10]      addrconf_add_dev+0xe2/0x170
[ 1597.467499][   T10]      inet6_addr_add+0x12f/0xa40
[ 1597.467499][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1597.467499][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1597.467499][   T10]      netlink_rcv_skb+0x130/0x360
[ 1597.467499][   T10]      netlink_unicast+0x449/0x710
[ 1597.467499][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1597.467499][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1597.467499][   T10]      ___sys_sendmsg+0xee/0x170
[ 1597.467499][   T10]      __sys_sendmsg+0xcd/0x170
[ 1597.467499][   T10]      do_syscall_64+0xc6/0x1e0
[ 1597.467499][   T10] 
[ 1597.469507][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1597.469507][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1597.469507][   T10]      ipv6_find_idev+0x102/0x170
[ 1597.469507][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1597.469507][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1597.469507][   T10]      netlink_rcv_skb+0x130/0x360
[ 1597.469507][   T10]      netlink_unicast+0x449/0x710
[ 1597.469507][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1597.469507][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1597.469507][   T10]      ___sys_sendmsg+0xee/0x170
[ 1597.469507][   T10]      __sys_sendmsg+0xcd/0x170
[ 1597.469507][   T10]      do_syscall_64+0xc6/0x1e0
[ 1597.469507][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1597.469507][   T10] 
[ 1597.471049][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1597.471049][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1597.471049][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1597.471049][   T10]      ipv6_find_idev+0x102/0x170
[ 1597.471049][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1597.471049][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1597.471049][   T10]      netlink_rcv_skb+0x130/0x360
[ 1597.471049][   T10]      netlink_unicast+0x449/0x710
[ 1597.471049][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1597.471049][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1597.471049][   T10]      ___sys_sendmsg+0xee/0x170
[ 1597.471049][   T10]      __sys_sendmsg+0xcd/0x170
[ 1597.471049][   T10]      do_syscall_64+0xc6/0x1e0
[ 1597.471049][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1597.471049][   T10] 
[ 1607.713786][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1607.714179][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1607.714179][   T10]      dst_init+0x84/0x4a0
[ 1607.714179][   T10]      dst_alloc+0x97/0x150
[ 1607.714179][   T10]      ip6_dst_alloc+0x23/0x90
[ 1607.714179][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1607.714179][   T10]      ip6_pol_route+0x56f/0x840
[ 1607.714179][   T10]      fib6_rule_lookup+0x456/0x630
[ 1607.714179][   T10]      ip6_route_input+0x59c/0xa50
[ 1607.714179][   T10]      ipv6_rcv+0x397/0x810
[ 1607.714179][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1607.714179][   T10]      process_backlog+0x101/0x620
[ 1607.714179][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1607.714179][   T10]      net_rx_action+0x495/0xbe0
[ 1607.714179][   T10]      __do_softirq+0x1b5/0x7f6
[ 1607.714179][   T10] 
[ 1607.715887][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1607.715887][   T10]      netdev_get_by_index+0x5e/0x80
[ 1607.715887][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1607.715887][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1607.715887][   T10]      ip6_route_add+0x1c/0x140
[ 1607.715887][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1607.715887][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1607.715887][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1607.715887][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1607.715887][   T10]      netlink_rcv_skb+0x130/0x360
[ 1607.715887][   T10]      netlink_unicast+0x449/0x710
[ 1607.715887][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1607.715887][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1607.715887][   T10]      ___sys_sendmsg+0xee/0x170
[ 1607.715887][   T10]      __sys_sendmsg+0xcd/0x170
[ 1607.715887][   T10]      do_syscall_64+0xc6/0x1e0
[ 1607.715887][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1607.715887][   T10] 
[ 1607.717887][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1607.717887][   T10]      netdev_get_by_index+0x5e/0x80
[ 1607.717887][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1607.717887][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1607.717887][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1607.717887][   T10]      ipv6_add_addr+0x411/0x2000
[ 1607.717887][   T10]      inet6_addr_add+0x30e/0xa40
[ 1607.717887][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1607.717887][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1607.717887][   T10]      netlink_rcv_skb+0x130/0x360
[ 1607.717887][   T10]      netlink_unicast+0x449/0x710
[ 1607.717887][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1607.717887][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1607.717887][   T10]      ___sys_sendmsg+0xee/0x170
[ 1607.717887][   T10]      __sys_sendmsg+0xcd/0x170
[ 1607.717887][   T10]      do_syscall_64+0xc6/0x1e0
[ 1607.717887][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1607.717887][   T10] 
[ 1607.719888][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1607.719888][   T10]      netdev_get_by_index+0x5e/0x80
[ 1607.719888][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1607.719888][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1607.719888][   T10]      ip6_route_add+0x1c/0x140
[ 1607.719888][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1607.719888][   T10]      addrconf_add_dev+0xe2/0x170
[ 1607.719888][   T10]      inet6_addr_add+0x12f/0xa40
[ 1607.719888][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1607.719888][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1607.719888][   T10]      netlink_rcv_skb+0x130/0x360
[ 1607.719888][   T10]      netlink_unicast+0x449/0x710
[ 1607.719888][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1607.719888][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1607.719888][   T10]      ___sys_sendmsg+0xee/0x170
[ 1607.719888][   T10]      __sys_sendmsg+0xcd/0x170
[ 1607.719888][   T10]      do_syscall_64+0xc6/0x1e0
[ 1607.719888][   T10] 
[ 1607.721861][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1607.721861][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1607.721861][   T10]      ipv6_find_idev+0x102/0x170
[ 1607.721861][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1607.721861][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1607.721861][   T10]      netlink_rcv_skb+0x130/0x360
[ 1607.721861][   T10]      netlink_unicast+0x449/0x710
[ 1607.721861][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1607.721861][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1607.721861][   T10]      ___sys_sendmsg+0xee/0x170
[ 1607.721861][   T10]      __sys_sendmsg+0xcd/0x170
[ 1607.721861][   T10]      do_syscall_64+0xc6/0x1e0
[ 1607.721861][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1607.721861][   T10] 
[ 1607.723406][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1607.723406][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1607.723406][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1607.723406][   T10]      ipv6_find_idev+0x102/0x170
[ 1607.723406][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1607.723406][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1607.723406][   T10]      netlink_rcv_skb+0x130/0x360
[ 1607.723406][   T10]      netlink_unicast+0x449/0x710
[ 1607.723406][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1607.723406][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1607.723406][   T10]      ___sys_sendmsg+0xee/0x170
[ 1607.723406][   T10]      __sys_sendmsg+0xcd/0x170
[ 1607.723406][   T10]      do_syscall_64+0xc6/0x1e0
[ 1607.723406][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1607.723406][   T10] 
[ 1607.725102][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1607.725351][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1607.725351][   T10]      dst_init+0x84/0x4a0
[ 1607.725351][   T10]      dst_alloc+0x97/0x150
[ 1607.725351][   T10]      ip6_dst_alloc+0x23/0x90
[ 1607.725351][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1607.725351][   T10]      ip6_pol_route+0x56f/0x840
[ 1607.725351][   T10]      fib6_rule_lookup+0x456/0x630
[ 1607.725351][   T10]      ip6_route_input+0x59c/0xa50
[ 1607.725351][   T10]      ipv6_rcv+0x397/0x810
[ 1607.725351][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1607.725351][   T10]      process_backlog+0x101/0x620
[ 1607.725351][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1607.725351][   T10]      net_rx_action+0x495/0xbe0
[ 1607.725351][   T10]      __do_softirq+0x1b5/0x7f6
[ 1607.725351][   T10] 
[ 1607.726996][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1607.726996][   T10]      netdev_get_by_index+0x5e/0x80
[ 1607.726996][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1607.726996][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1607.726996][   T10]      ip6_route_add+0x1c/0x140
[ 1607.726996][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1607.726996][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1607.726996][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1607.726996][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1607.726996][   T10]      netlink_rcv_skb+0x130/0x360
[ 1607.726996][   T10]      netlink_unicast+0x449/0x710
[ 1607.726996][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1607.726996][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1607.726996][   T10]      ___sys_sendmsg+0xee/0x170
[ 1607.726996][   T10]      __sys_sendmsg+0xcd/0x170
[ 1607.726996][   T10]      do_syscall_64+0xc6/0x1e0
[ 1607.726996][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1607.726996][   T10] 
[ 1607.728997][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1607.728997][   T10]      netdev_get_by_index+0x5e/0x80
[ 1607.728997][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1607.728997][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1607.728997][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1607.728997][   T10]      ipv6_add_addr+0x411/0x2000
[ 1607.728997][   T10]      inet6_addr_add+0x30e/0xa40
[ 1607.728997][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1607.728997][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1607.728997][   T10]      netlink_rcv_skb+0x130/0x360
[ 1607.728997][   T10]      netlink_unicast+0x449/0x710
[ 1607.728997][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1607.728997][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1607.728997][   T10]      ___sys_sendmsg+0xee/0x170
[ 1607.728997][   T10]      __sys_sendmsg+0xcd/0x170
[ 1607.728997][   T10]      do_syscall_64+0xc6/0x1e0
[ 1607.728997][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1607.728997][   T10] 
[ 1607.730993][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1607.730993][   T10]      netdev_get_by_index+0x5e/0x80
[ 1607.730993][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1607.730993][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1607.730993][   T10]      ip6_route_add+0x1c/0x140
[ 1607.730993][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1607.730993][   T10]      addrconf_add_dev+0xe2/0x170
[ 1607.730993][   T10]      inet6_addr_add+0x12f/0xa40
[ 1607.730993][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1607.730993][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1607.730993][   T10]      netlink_rcv_skb+0x130/0x360
[ 1607.730993][   T10]      netlink_unicast+0x449/0x710
[ 1607.730993][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1607.730993][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1607.730993][   T10]      ___sys_sendmsg+0xee/0x170
[ 1607.730993][   T10]      __sys_sendmsg+0xcd/0x170
[ 1607.730993][   T10]      do_syscall_64+0xc6/0x1e0
[ 1607.730993][   T10] 
[ 1607.732958][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1607.732958][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1607.732958][   T10]      ipv6_find_idev+0x102/0x170
[ 1607.732958][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1607.732958][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1607.732958][   T10]      netlink_rcv_skb+0x130/0x360
[ 1607.732958][   T10]      netlink_unicast+0x449/0x710
[ 1607.732958][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1607.732958][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1607.732958][   T10]      ___sys_sendmsg+0xee/0x170
[ 1607.732958][   T10]      __sys_sendmsg+0xcd/0x170
[ 1607.732958][   T10]      do_syscall_64+0xc6/0x1e0
[ 1607.732958][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1607.732958][   T10] 
[ 1607.734508][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1607.734508][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1607.734508][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1607.734508][   T10]      ipv6_find_idev+0x102/0x170
[ 1607.734508][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1607.734508][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1607.734508][   T10]      netlink_rcv_skb+0x130/0x360
[ 1607.734508][   T10]      netlink_unicast+0x449/0x710
[ 1607.734508][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1607.734508][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1607.734508][   T10]      ___sys_sendmsg+0xee/0x170
[ 1607.734508][   T10]      __sys_sendmsg+0xcd/0x170
[ 1607.734508][   T10]      do_syscall_64+0xc6/0x1e0
[ 1607.734508][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1607.734508][   T10] 
[ 1617.913788][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1617.914239][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1617.914239][   T10]      dst_init+0x84/0x4a0
[ 1617.914239][   T10]      dst_alloc+0x97/0x150
[ 1617.914239][   T10]      ip6_dst_alloc+0x23/0x90
[ 1617.914239][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1617.914239][   T10]      ip6_pol_route+0x56f/0x840
[ 1617.914239][   T10]      fib6_rule_lookup+0x456/0x630
[ 1617.914239][   T10]      ip6_route_input+0x59c/0xa50
[ 1617.914239][   T10]      ipv6_rcv+0x397/0x810
[ 1617.914239][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1617.914239][   T10]      process_backlog+0x101/0x620
[ 1617.914239][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1617.914239][   T10]      net_rx_action+0x495/0xbe0
[ 1617.914239][   T10]      __do_softirq+0x1b5/0x7f6
[ 1617.914239][   T10] 
[ 1617.915949][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1617.915949][   T10]      netdev_get_by_index+0x5e/0x80
[ 1617.915949][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1617.915949][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1617.915949][   T10]      ip6_route_add+0x1c/0x140
[ 1617.915949][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1617.915949][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1617.915949][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1617.915949][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1617.915949][   T10]      netlink_rcv_skb+0x130/0x360
[ 1617.915949][   T10]      netlink_unicast+0x449/0x710
[ 1617.915949][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1617.915949][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1617.915949][   T10]      ___sys_sendmsg+0xee/0x170
[ 1617.915949][   T10]      __sys_sendmsg+0xcd/0x170
[ 1617.915949][   T10]      do_syscall_64+0xc6/0x1e0
[ 1617.915949][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1617.915949][   T10] 
[ 1617.917954][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1617.917954][   T10]      netdev_get_by_index+0x5e/0x80
[ 1617.917954][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1617.917954][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1617.917954][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1617.917954][   T10]      ipv6_add_addr+0x411/0x2000
[ 1617.917954][   T10]      inet6_addr_add+0x30e/0xa40
[ 1617.917954][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1617.917954][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1617.917954][   T10]      netlink_rcv_skb+0x130/0x360
[ 1617.917954][   T10]      netlink_unicast+0x449/0x710
[ 1617.917954][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1617.917954][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1617.917954][   T10]      ___sys_sendmsg+0xee/0x170
[ 1617.917954][   T10]      __sys_sendmsg+0xcd/0x170
[ 1617.917954][   T10]      do_syscall_64+0xc6/0x1e0
[ 1617.917954][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1617.917954][   T10] 
[ 1617.919948][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1617.919948][   T10]      netdev_get_by_index+0x5e/0x80
[ 1617.919948][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1617.919948][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1617.919948][   T10]      ip6_route_add+0x1c/0x140
[ 1617.919948][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1617.919948][   T10]      addrconf_add_dev+0xe2/0x170
[ 1617.919948][   T10]      inet6_addr_add+0x12f/0xa40
[ 1617.919948][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1617.919948][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1617.919948][   T10]      netlink_rcv_skb+0x130/0x360
[ 1617.919948][   T10]      netlink_unicast+0x449/0x710
[ 1617.919948][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1617.919948][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1617.919948][   T10]      ___sys_sendmsg+0xee/0x170
[ 1617.919948][   T10]      __sys_sendmsg+0xcd/0x170
[ 1617.919948][   T10]      do_syscall_64+0xc6/0x1e0
[ 1617.919948][   T10] 
[ 1617.921919][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1617.921919][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1617.921919][   T10]      ipv6_find_idev+0x102/0x170
[ 1617.921919][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1617.921919][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1617.921919][   T10]      netlink_rcv_skb+0x130/0x360
[ 1617.921919][   T10]      netlink_unicast+0x449/0x710
[ 1617.921919][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1617.921919][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1617.921919][   T10]      ___sys_sendmsg+0xee/0x170
[ 1617.921919][   T10]      __sys_sendmsg+0xcd/0x170
[ 1617.921919][   T10]      do_syscall_64+0xc6/0x1e0
[ 1617.921919][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1617.921919][   T10] 
[ 1617.923471][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1617.923471][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1617.923471][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1617.923471][   T10]      ipv6_find_idev+0x102/0x170
[ 1617.923471][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1617.923471][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1617.923471][   T10]      netlink_rcv_skb+0x130/0x360
[ 1617.923471][   T10]      netlink_unicast+0x449/0x710
[ 1617.923471][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1617.923471][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1617.923471][   T10]      ___sys_sendmsg+0xee/0x170
[ 1617.923471][   T10]      __sys_sendmsg+0xcd/0x170
[ 1617.923471][   T10]      do_syscall_64+0xc6/0x1e0
[ 1617.923471][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1617.923471][   T10] 
[ 1617.925180][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1617.925424][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1617.925424][   T10]      dst_init+0x84/0x4a0
[ 1617.925424][   T10]      dst_alloc+0x97/0x150
[ 1617.925424][   T10]      ip6_dst_alloc+0x23/0x90
[ 1617.925424][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1617.925424][   T10]      ip6_pol_route+0x56f/0x840
[ 1617.925424][   T10]      fib6_rule_lookup+0x456/0x630
[ 1617.925424][   T10]      ip6_route_input+0x59c/0xa50
[ 1617.925424][   T10]      ipv6_rcv+0x397/0x810
[ 1617.925424][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1617.925424][   T10]      process_backlog+0x101/0x620
[ 1617.925424][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1617.925424][   T10]      net_rx_action+0x495/0xbe0
[ 1617.925424][   T10]      __do_softirq+0x1b5/0x7f6
[ 1617.925424][   T10] 
[ 1617.927064][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1617.927064][   T10]      netdev_get_by_index+0x5e/0x80
[ 1617.927064][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1617.927064][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1617.927064][   T10]      ip6_route_add+0x1c/0x140
[ 1617.927064][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1617.927064][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1617.927064][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1617.927064][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1617.927064][   T10]      netlink_rcv_skb+0x130/0x360
[ 1617.927064][   T10]      netlink_unicast+0x449/0x710
[ 1617.927064][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1617.927064][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1617.927064][   T10]      ___sys_sendmsg+0xee/0x170
[ 1617.927064][   T10]      __sys_sendmsg+0xcd/0x170
[ 1617.927064][   T10]      do_syscall_64+0xc6/0x1e0
[ 1617.927064][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1617.927064][   T10] 
[ 1617.929063][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1617.929063][   T10]      netdev_get_by_index+0x5e/0x80
[ 1617.929063][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1617.929063][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1617.929063][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1617.929063][   T10]      ipv6_add_addr+0x411/0x2000
[ 1617.929063][   T10]      inet6_addr_add+0x30e/0xa40
[ 1617.929063][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1617.929063][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1617.929063][   T10]      netlink_rcv_skb+0x130/0x360
[ 1617.929063][   T10]      netlink_unicast+0x449/0x710
[ 1617.929063][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1617.929063][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1617.929063][   T10]      ___sys_sendmsg+0xee/0x170
[ 1617.929063][   T10]      __sys_sendmsg+0xcd/0x170
[ 1617.929063][   T10]      do_syscall_64+0xc6/0x1e0
[ 1617.929063][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1617.929063][   T10] 
[ 1617.931060][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1617.931060][   T10]      netdev_get_by_index+0x5e/0x80
[ 1617.931060][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1617.931060][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1617.931060][   T10]      ip6_route_add+0x1c/0x140
[ 1617.931060][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1617.931060][   T10]      addrconf_add_dev+0xe2/0x170
[ 1617.931060][   T10]      inet6_addr_add+0x12f/0xa40
[ 1617.931060][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1617.931060][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1617.931060][   T10]      netlink_rcv_skb+0x130/0x360
[ 1617.931060][   T10]      netlink_unicast+0x449/0x710
[ 1617.931060][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1617.931060][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1617.931060][   T10]      ___sys_sendmsg+0xee/0x170
[ 1617.931060][   T10]      __sys_sendmsg+0xcd/0x170
[ 1617.931060][   T10]      do_syscall_64+0xc6/0x1e0
[ 1617.931060][   T10] 
[ 1617.933021][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1617.933021][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1617.933021][   T10]      ipv6_find_idev+0x102/0x170
[ 1617.933021][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1617.933021][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1617.933021][   T10]      netlink_rcv_skb+0x130/0x360
[ 1617.933021][   T10]      netlink_unicast+0x449/0x710
[ 1617.933021][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1617.933021][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1617.933021][   T10]      ___sys_sendmsg+0xee/0x170
[ 1617.933021][   T10]      __sys_sendmsg+0xcd/0x170
[ 1617.933021][   T10]      do_syscall_64+0xc6/0x1e0
[ 1617.933021][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1617.933021][   T10] 
[ 1617.934567][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1617.934567][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1617.934567][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1617.934567][   T10]      ipv6_find_idev+0x102/0x170
[ 1617.934567][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1617.934567][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1617.934567][   T10]      netlink_rcv_skb+0x130/0x360
[ 1617.934567][   T10]      netlink_unicast+0x449/0x710
[ 1617.934567][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1617.934567][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1617.934567][   T10]      ___sys_sendmsg+0xee/0x170
[ 1617.934567][   T10]      __sys_sendmsg+0xcd/0x170
[ 1617.934567][   T10]      do_syscall_64+0xc6/0x1e0
[ 1617.934567][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1617.934567][   T10] 
[ 1628.177783][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1628.178161][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1628.178161][   T10]      dst_init+0x84/0x4a0
[ 1628.178161][   T10]      dst_alloc+0x97/0x150
[ 1628.178161][   T10]      ip6_dst_alloc+0x23/0x90
[ 1628.178161][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1628.178161][   T10]      ip6_pol_route+0x56f/0x840
[ 1628.178161][   T10]      fib6_rule_lookup+0x456/0x630
[ 1628.178161][   T10]      ip6_route_input+0x59c/0xa50
[ 1628.178161][   T10]      ipv6_rcv+0x397/0x810
[ 1628.178161][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1628.178161][   T10]      process_backlog+0x101/0x620
[ 1628.178161][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1628.178161][   T10]      net_rx_action+0x495/0xbe0
[ 1628.178161][   T10]      __do_softirq+0x1b5/0x7f6
[ 1628.178161][   T10] 
[ 1628.180002][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1628.180002][   T10]      netdev_get_by_index+0x5e/0x80
[ 1628.180002][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1628.180002][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1628.180002][   T10]      ip6_route_add+0x1c/0x140
[ 1628.180002][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1628.180002][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1628.180002][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1628.180002][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1628.180002][   T10]      netlink_rcv_skb+0x130/0x360
[ 1628.180002][   T10]      netlink_unicast+0x449/0x710
[ 1628.180002][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1628.180002][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1628.180002][   T10]      ___sys_sendmsg+0xee/0x170
[ 1628.180002][   T10]      __sys_sendmsg+0xcd/0x170
[ 1628.180002][   T10]      do_syscall_64+0xc6/0x1e0
[ 1628.180002][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1628.180002][   T10] 
[ 1628.182062][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1628.182062][   T10]      netdev_get_by_index+0x5e/0x80
[ 1628.182062][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1628.182062][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1628.182062][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1628.182062][   T10]      ipv6_add_addr+0x411/0x2000
[ 1628.182062][   T10]      inet6_addr_add+0x30e/0xa40
[ 1628.182062][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1628.182062][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1628.182062][   T10]      netlink_rcv_skb+0x130/0x360
[ 1628.182062][   T10]      netlink_unicast+0x449/0x710
[ 1628.182062][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1628.182062][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1628.182062][   T10]      ___sys_sendmsg+0xee/0x170
[ 1628.182062][   T10]      __sys_sendmsg+0xcd/0x170
[ 1628.182062][   T10]      do_syscall_64+0xc6/0x1e0
[ 1628.182062][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1628.182062][   T10] 
[ 1628.184115][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1628.184115][   T10]      netdev_get_by_index+0x5e/0x80
[ 1628.184115][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1628.184115][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1628.184115][   T10]      ip6_route_add+0x1c/0x140
[ 1628.184115][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1628.184115][   T10]      addrconf_add_dev+0xe2/0x170
[ 1628.184115][   T10]      inet6_addr_add+0x12f/0xa40
[ 1628.184115][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1628.184115][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1628.184115][   T10]      netlink_rcv_skb+0x130/0x360
[ 1628.184115][   T10]      netlink_unicast+0x449/0x710
[ 1628.184115][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1628.184115][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1628.184115][   T10]      ___sys_sendmsg+0xee/0x170
[ 1628.184115][   T10]      __sys_sendmsg+0xcd/0x170
[ 1628.184115][   T10]      do_syscall_64+0xc6/0x1e0
[ 1628.184115][   T10] 
[ 1628.187054][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1628.187054][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1628.187054][   T10]      ipv6_find_idev+0x102/0x170
[ 1628.187054][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1628.187054][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1628.187054][   T10]      netlink_rcv_skb+0x130/0x360
[ 1628.187054][   T10]      netlink_unicast+0x449/0x710
[ 1628.187054][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1628.187054][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1628.187054][   T10]      ___sys_sendmsg+0xee/0x170
[ 1628.187054][   T10]      __sys_sendmsg+0xcd/0x170
[ 1628.187054][   T10]      do_syscall_64+0xc6/0x1e0
[ 1628.187054][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1628.187054][   T10] 
[ 1628.188639][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1628.188639][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1628.188639][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1628.188639][   T10]      ipv6_find_idev+0x102/0x170
[ 1628.188639][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1628.188639][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1628.188639][   T10]      netlink_rcv_skb+0x130/0x360
[ 1628.188639][   T10]      netlink_unicast+0x449/0x710
[ 1628.188639][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1628.188639][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1628.188639][   T10]      ___sys_sendmsg+0xee/0x170
[ 1628.188639][   T10]      __sys_sendmsg+0xcd/0x170
[ 1628.188639][   T10]      do_syscall_64+0xc6/0x1e0
[ 1628.188639][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1628.188639][   T10] 
[ 1628.190381][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1628.190629][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1628.190629][   T10]      dst_init+0x84/0x4a0
[ 1628.190629][   T10]      dst_alloc+0x97/0x150
[ 1628.190629][   T10]      ip6_dst_alloc+0x23/0x90
[ 1628.190629][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1628.190629][   T10]      ip6_pol_route+0x56f/0x840
[ 1628.190629][   T10]      fib6_rule_lookup+0x456/0x630
[ 1628.190629][   T10]      ip6_route_input+0x59c/0xa50
[ 1628.190629][   T10]      ipv6_rcv+0x397/0x810
[ 1628.190629][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1628.190629][   T10]      process_backlog+0x101/0x620
[ 1628.190629][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1628.190629][   T10]      net_rx_action+0x495/0xbe0
[ 1628.190629][   T10]      __do_softirq+0x1b5/0x7f6
[ 1628.190629][   T10] 
[ 1628.192308][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1628.192308][   T10]      netdev_get_by_index+0x5e/0x80
[ 1628.192308][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1628.192308][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1628.192308][   T10]      ip6_route_add+0x1c/0x140
[ 1628.192308][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1628.192308][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1628.192308][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1628.192308][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1628.192308][   T10]      netlink_rcv_skb+0x130/0x360
[ 1628.192308][   T10]      netlink_unicast+0x449/0x710
[ 1628.192308][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1628.192308][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1628.192308][   T10]      ___sys_sendmsg+0xee/0x170
[ 1628.192308][   T10]      __sys_sendmsg+0xcd/0x170
[ 1628.192308][   T10]      do_syscall_64+0xc6/0x1e0
[ 1628.192308][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1628.192308][   T10] 
[ 1628.194358][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1628.194358][   T10]      netdev_get_by_index+0x5e/0x80
[ 1628.194358][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1628.194358][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1628.194358][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1628.194358][   T10]      ipv6_add_addr+0x411/0x2000
[ 1628.194358][   T10]      inet6_addr_add+0x30e/0xa40
[ 1628.194358][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1628.194358][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1628.194358][   T10]      netlink_rcv_skb+0x130/0x360
[ 1628.194358][   T10]      netlink_unicast+0x449/0x710
[ 1628.194358][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1628.194358][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1628.194358][   T10]      ___sys_sendmsg+0xee/0x170
[ 1628.194358][   T10]      __sys_sendmsg+0xcd/0x170
[ 1628.194358][   T10]      do_syscall_64+0xc6/0x1e0
[ 1628.194358][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1628.194358][   T10] 
[ 1628.196410][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1628.196410][   T10]      netdev_get_by_index+0x5e/0x80
[ 1628.196410][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1628.196410][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1628.196410][   T10]      ip6_route_add+0x1c/0x140
[ 1628.196410][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1628.196410][   T10]      addrconf_add_dev+0xe2/0x170
[ 1628.196410][   T10]      inet6_addr_add+0x12f/0xa40
[ 1628.196410][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1628.196410][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1628.196410][   T10]      netlink_rcv_skb+0x130/0x360
[ 1628.196410][   T10]      netlink_unicast+0x449/0x710
[ 1628.196410][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1628.196410][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1628.196410][   T10]      ___sys_sendmsg+0xee/0x170
[ 1628.196410][   T10]      __sys_sendmsg+0xcd/0x170
[ 1628.196410][   T10]      do_syscall_64+0xc6/0x1e0
[ 1628.196410][   T10] 
[ 1628.198423][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1628.198423][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1628.198423][   T10]      ipv6_find_idev+0x102/0x170
[ 1628.198423][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1628.198423][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1628.198423][   T10]      netlink_rcv_skb+0x130/0x360
[ 1628.198423][   T10]      netlink_unicast+0x449/0x710
[ 1628.198423][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1628.198423][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1628.198423][   T10]      ___sys_sendmsg+0xee/0x170
[ 1628.198423][   T10]      __sys_sendmsg+0xcd/0x170
[ 1628.198423][   T10]      do_syscall_64+0xc6/0x1e0
[ 1628.198423][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1628.198423][   T10] 
[ 1628.199996][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1628.199996][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1628.199996][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1628.199996][   T10]      ipv6_find_idev+0x102/0x170
[ 1628.199996][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1628.199996][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1628.199996][   T10]      netlink_rcv_skb+0x130/0x360
[ 1628.199996][   T10]      netlink_unicast+0x449/0x710
[ 1628.199996][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1628.199996][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1628.199996][   T10]      ___sys_sendmsg+0xee/0x170
[ 1628.199996][   T10]      __sys_sendmsg+0xcd/0x170
[ 1628.199996][   T10]      do_syscall_64+0xc6/0x1e0
[ 1628.199996][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1628.199996][   T10] 
[ 1638.441793][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1638.442255][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1638.442255][   T10]      dst_init+0x84/0x4a0
[ 1638.442255][   T10]      dst_alloc+0x97/0x150
[ 1638.442255][   T10]      ip6_dst_alloc+0x23/0x90
[ 1638.442255][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1638.442255][   T10]      ip6_pol_route+0x56f/0x840
[ 1638.442255][   T10]      fib6_rule_lookup+0x456/0x630
[ 1638.442255][   T10]      ip6_route_input+0x59c/0xa50
[ 1638.442255][   T10]      ipv6_rcv+0x397/0x810
[ 1638.442255][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1638.442255][   T10]      process_backlog+0x101/0x620
[ 1638.442255][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1638.442255][   T10]      net_rx_action+0x495/0xbe0
[ 1638.442255][   T10]      __do_softirq+0x1b5/0x7f6
[ 1638.442255][   T10] 
[ 1638.444345][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1638.444345][   T10]      netdev_get_by_index+0x5e/0x80
[ 1638.444345][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1638.444345][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1638.444345][   T10]      ip6_route_add+0x1c/0x140
[ 1638.444345][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1638.444345][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1638.444345][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1638.444345][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1638.444345][   T10]      netlink_rcv_skb+0x130/0x360
[ 1638.444345][   T10]      netlink_unicast+0x449/0x710
[ 1638.444345][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1638.444345][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1638.444345][   T10]      ___sys_sendmsg+0xee/0x170
[ 1638.444345][   T10]      __sys_sendmsg+0xcd/0x170
[ 1638.444345][   T10]      do_syscall_64+0xc6/0x1e0
[ 1638.444345][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1638.444345][   T10] 
[ 1638.446418][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1638.446418][   T10]      netdev_get_by_index+0x5e/0x80
[ 1638.446418][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1638.446418][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1638.446418][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1638.446418][   T10]      ipv6_add_addr+0x411/0x2000
[ 1638.446418][   T10]      inet6_addr_add+0x30e/0xa40
[ 1638.446418][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1638.446418][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1638.446418][   T10]      netlink_rcv_skb+0x130/0x360
[ 1638.446418][   T10]      netlink_unicast+0x449/0x710
[ 1638.446418][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1638.446418][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1638.446418][   T10]      ___sys_sendmsg+0xee/0x170
[ 1638.446418][   T10]      __sys_sendmsg+0xcd/0x170
[ 1638.446418][   T10]      do_syscall_64+0xc6/0x1e0
[ 1638.446418][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1638.446418][   T10] 
[ 1638.448470][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1638.448470][   T10]      netdev_get_by_index+0x5e/0x80
[ 1638.448470][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1638.448470][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1638.448470][   T10]      ip6_route_add+0x1c/0x140
[ 1638.448470][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1638.448470][   T10]      addrconf_add_dev+0xe2/0x170
[ 1638.448470][   T10]      inet6_addr_add+0x12f/0xa40
[ 1638.448470][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1638.448470][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1638.448470][   T10]      netlink_rcv_skb+0x130/0x360
[ 1638.448470][   T10]      netlink_unicast+0x449/0x710
[ 1638.448470][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1638.448470][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1638.448470][   T10]      ___sys_sendmsg+0xee/0x170
[ 1638.448470][   T10]      __sys_sendmsg+0xcd/0x170
[ 1638.448470][   T10]      do_syscall_64+0xc6/0x1e0
[ 1638.448470][   T10] 
[ 1638.450483][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1638.450483][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1638.450483][   T10]      ipv6_find_idev+0x102/0x170
[ 1638.450483][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1638.450483][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1638.450483][   T10]      netlink_rcv_skb+0x130/0x360
[ 1638.450483][   T10]      netlink_unicast+0x449/0x710
[ 1638.450483][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1638.450483][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1638.450483][   T10]      ___sys_sendmsg+0xee/0x170
[ 1638.450483][   T10]      __sys_sendmsg+0xcd/0x170
[ 1638.450483][   T10]      do_syscall_64+0xc6/0x1e0
[ 1638.450483][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1638.450483][   T10] 
[ 1638.452063][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1638.452063][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1638.452063][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1638.452063][   T10]      ipv6_find_idev+0x102/0x170
[ 1638.452063][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1638.452063][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1638.452063][   T10]      netlink_rcv_skb+0x130/0x360
[ 1638.452063][   T10]      netlink_unicast+0x449/0x710
[ 1638.452063][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1638.452063][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1638.452063][   T10]      ___sys_sendmsg+0xee/0x170
[ 1638.452063][   T10]      __sys_sendmsg+0xcd/0x170
[ 1638.452063][   T10]      do_syscall_64+0xc6/0x1e0
[ 1638.452063][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1638.452063][   T10] 
[ 1638.453800][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1638.454050][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1638.454050][   T10]      dst_init+0x84/0x4a0
[ 1638.454050][   T10]      dst_alloc+0x97/0x150
[ 1638.454050][   T10]      ip6_dst_alloc+0x23/0x90
[ 1638.454050][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1638.454050][   T10]      ip6_pol_route+0x56f/0x840
[ 1638.454050][   T10]      fib6_rule_lookup+0x456/0x630
[ 1638.454050][   T10]      ip6_route_input+0x59c/0xa50
[ 1638.454050][   T10]      ipv6_rcv+0x397/0x810
[ 1638.454050][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1638.454050][   T10]      process_backlog+0x101/0x620
[ 1638.454050][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1638.454050][   T10]      net_rx_action+0x495/0xbe0
[ 1638.454050][   T10]      __do_softirq+0x1b5/0x7f6
[ 1638.454050][   T10] 
[ 1638.455749][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1638.455749][   T10]      netdev_get_by_index+0x5e/0x80
[ 1638.455749][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1638.455749][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1638.455749][   T10]      ip6_route_add+0x1c/0x140
[ 1638.455749][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1638.455749][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1638.455749][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1638.455749][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1638.455749][   T10]      netlink_rcv_skb+0x130/0x360
[ 1638.455749][   T10]      netlink_unicast+0x449/0x710
[ 1638.455749][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1638.455749][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1638.455749][   T10]      ___sys_sendmsg+0xee/0x170
[ 1638.455749][   T10]      __sys_sendmsg+0xcd/0x170
[ 1638.455749][   T10]      do_syscall_64+0xc6/0x1e0
[ 1638.455749][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1638.455749][   T10] 
[ 1638.457798][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1638.457798][   T10]      netdev_get_by_index+0x5e/0x80
[ 1638.457798][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1638.457798][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1638.457798][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1638.457798][   T10]      ipv6_add_addr+0x411/0x2000
[ 1638.457798][   T10]      inet6_addr_add+0x30e/0xa40
[ 1638.457798][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1638.457798][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1638.457798][   T10]      netlink_rcv_skb+0x130/0x360
[ 1638.457798][   T10]      netlink_unicast+0x449/0x710
[ 1638.457798][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1638.457798][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1638.457798][   T10]      ___sys_sendmsg+0xee/0x170
[ 1638.457798][   T10]      __sys_sendmsg+0xcd/0x170
[ 1638.457798][   T10]      do_syscall_64+0xc6/0x1e0
[ 1638.457798][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1638.457798][   T10] 
[ 1638.459847][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1638.459847][   T10]      netdev_get_by_index+0x5e/0x80
[ 1638.459847][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1638.459847][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1638.459847][   T10]      ip6_route_add+0x1c/0x140
[ 1638.459847][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1638.459847][   T10]      addrconf_add_dev+0xe2/0x170
[ 1638.459847][   T10]      inet6_addr_add+0x12f/0xa40
[ 1638.459847][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1638.459847][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1638.459847][   T10]      netlink_rcv_skb+0x130/0x360
[ 1638.459847][   T10]      netlink_unicast+0x449/0x710
[ 1638.459847][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1638.459847][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1638.459847][   T10]      ___sys_sendmsg+0xee/0x170
[ 1638.459847][   T10]      __sys_sendmsg+0xcd/0x170
[ 1638.459847][   T10]      do_syscall_64+0xc6/0x1e0
[ 1638.459847][   T10] 
[ 1638.461859][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1638.461859][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1638.461859][   T10]      ipv6_find_idev+0x102/0x170
[ 1638.461859][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1638.461859][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1638.461859][   T10]      netlink_rcv_skb+0x130/0x360
[ 1638.461859][   T10]      netlink_unicast+0x449/0x710
[ 1638.461859][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1638.461859][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1638.461859][   T10]      ___sys_sendmsg+0xee/0x170
[ 1638.461859][   T10]      __sys_sendmsg+0xcd/0x170
[ 1638.461859][   T10]      do_syscall_64+0xc6/0x1e0
[ 1638.461859][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1638.461859][   T10] 
[ 1638.463439][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1638.463439][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1638.463439][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1638.463439][   T10]      ipv6_find_idev+0x102/0x170
[ 1638.463439][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1638.463439][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1638.463439][   T10]      netlink_rcv_skb+0x130/0x360
[ 1638.463439][   T10]      netlink_unicast+0x449/0x710
[ 1638.463439][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1638.463439][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1638.463439][   T10]      ___sys_sendmsg+0xee/0x170
[ 1638.463439][   T10]      __sys_sendmsg+0xcd/0x170
[ 1638.463439][   T10]      do_syscall_64+0xc6/0x1e0
[ 1638.463439][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1638.463439][   T10] 
[ 1648.705714][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1648.706169][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1648.706169][   T10]      dst_init+0x84/0x4a0
[ 1648.706169][   T10]      dst_alloc+0x97/0x150
[ 1648.706169][   T10]      ip6_dst_alloc+0x23/0x90
[ 1648.706169][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1648.706169][   T10]      ip6_pol_route+0x56f/0x840
[ 1648.706169][   T10]      fib6_rule_lookup+0x456/0x630
[ 1648.706169][   T10]      ip6_route_input+0x59c/0xa50
[ 1648.706169][   T10]      ipv6_rcv+0x397/0x810
[ 1648.706169][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1648.706169][   T10]      process_backlog+0x101/0x620
[ 1648.706169][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1648.706169][   T10]      net_rx_action+0x495/0xbe0
[ 1648.706169][   T10]      __do_softirq+0x1b5/0x7f6
[ 1648.706169][   T10] 
[ 1648.707888][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1648.707888][   T10]      netdev_get_by_index+0x5e/0x80
[ 1648.707888][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1648.707888][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1648.707888][   T10]      ip6_route_add+0x1c/0x140
[ 1648.707888][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1648.707888][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1648.707888][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1648.707888][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1648.707888][   T10]      netlink_rcv_skb+0x130/0x360
[ 1648.707888][   T10]      netlink_unicast+0x449/0x710
[ 1648.707888][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1648.707888][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1648.707888][   T10]      ___sys_sendmsg+0xee/0x170
[ 1648.707888][   T10]      __sys_sendmsg+0xcd/0x170
[ 1648.707888][   T10]      do_syscall_64+0xc6/0x1e0
[ 1648.707888][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1648.707888][   T10] 
[ 1648.709961][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1648.709961][   T10]      netdev_get_by_index+0x5e/0x80
[ 1648.709961][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1648.709961][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1648.709961][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1648.709961][   T10]      ipv6_add_addr+0x411/0x2000
[ 1648.709961][   T10]      inet6_addr_add+0x30e/0xa40
[ 1648.709961][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1648.709961][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1648.709961][   T10]      netlink_rcv_skb+0x130/0x360
[ 1648.709961][   T10]      netlink_unicast+0x449/0x710
[ 1648.709961][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1648.709961][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1648.709961][   T10]      ___sys_sendmsg+0xee/0x170
[ 1648.709961][   T10]      __sys_sendmsg+0xcd/0x170
[ 1648.709961][   T10]      do_syscall_64+0xc6/0x1e0
[ 1648.709961][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1648.709961][   T10] 
[ 1648.712018][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1648.712018][   T10]      netdev_get_by_index+0x5e/0x80
[ 1648.712018][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1648.712018][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1648.712018][   T10]      ip6_route_add+0x1c/0x140
[ 1648.712018][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1648.712018][   T10]      addrconf_add_dev+0xe2/0x170
[ 1648.712018][   T10]      inet6_addr_add+0x12f/0xa40
[ 1648.712018][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1648.712018][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1648.712018][   T10]      netlink_rcv_skb+0x130/0x360
[ 1648.712018][   T10]      netlink_unicast+0x449/0x710
[ 1648.712018][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1648.712018][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1648.712018][   T10]      ___sys_sendmsg+0xee/0x170
[ 1648.712018][   T10]      __sys_sendmsg+0xcd/0x170
[ 1648.712018][   T10]      do_syscall_64+0xc6/0x1e0
[ 1648.712018][   T10] 
[ 1648.714024][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1648.714024][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1648.714024][   T10]      ipv6_find_idev+0x102/0x170
[ 1648.714024][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1648.714024][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1648.714024][   T10]      netlink_rcv_skb+0x130/0x360
[ 1648.714024][   T10]      netlink_unicast+0x449/0x710
[ 1648.714024][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1648.714024][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1648.714024][   T10]      ___sys_sendmsg+0xee/0x170
[ 1648.714024][   T10]      __sys_sendmsg+0xcd/0x170
[ 1648.714024][   T10]      do_syscall_64+0xc6/0x1e0
[ 1648.714024][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1648.714024][   T10] 
[ 1648.715610][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1648.715610][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1648.715610][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1648.715610][   T10]      ipv6_find_idev+0x102/0x170
[ 1648.715610][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1648.715610][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1648.715610][   T10]      netlink_rcv_skb+0x130/0x360
[ 1648.715610][   T10]      netlink_unicast+0x449/0x710
[ 1648.715610][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1648.715610][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1648.715610][   T10]      ___sys_sendmsg+0xee/0x170
[ 1648.715610][   T10]      __sys_sendmsg+0xcd/0x170
[ 1648.715610][   T10]      do_syscall_64+0xc6/0x1e0
[ 1648.715610][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1648.715610][   T10] 
[ 1648.717349][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1648.717596][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1648.717596][   T10]      dst_init+0x84/0x4a0
[ 1648.717596][   T10]      dst_alloc+0x97/0x150
[ 1648.717596][   T10]      ip6_dst_alloc+0x23/0x90
[ 1648.717596][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1648.717596][   T10]      ip6_pol_route+0x56f/0x840
[ 1648.717596][   T10]      fib6_rule_lookup+0x456/0x630
[ 1648.717596][   T10]      ip6_route_input+0x59c/0xa50
[ 1648.717596][   T10]      ipv6_rcv+0x397/0x810
[ 1648.717596][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1648.717596][   T10]      process_backlog+0x101/0x620
[ 1648.717596][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1648.717596][   T10]      net_rx_action+0x495/0xbe0
[ 1648.717596][   T10]      __do_softirq+0x1b5/0x7f6
[ 1648.717596][   T10] 
[ 1648.719276][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1648.719276][   T10]      netdev_get_by_index+0x5e/0x80
[ 1648.719276][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1648.719276][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1648.719276][   T10]      ip6_route_add+0x1c/0x140
[ 1648.719276][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1648.719276][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1648.719276][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1648.719276][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1648.719276][   T10]      netlink_rcv_skb+0x130/0x360
[ 1648.719276][   T10]      netlink_unicast+0x449/0x710
[ 1648.719276][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1648.719276][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1648.719276][   T10]      ___sys_sendmsg+0xee/0x170
[ 1648.719276][   T10]      __sys_sendmsg+0xcd/0x170
[ 1648.719276][   T10]      do_syscall_64+0xc6/0x1e0
[ 1648.719276][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1648.719276][   T10] 
[ 1648.721319][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1648.721319][   T10]      netdev_get_by_index+0x5e/0x80
[ 1648.721319][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1648.721319][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1648.721319][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1648.721319][   T10]      ipv6_add_addr+0x411/0x2000
[ 1648.721319][   T10]      inet6_addr_add+0x30e/0xa40
[ 1648.721319][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1648.721319][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1648.721319][   T10]      netlink_rcv_skb+0x130/0x360
[ 1648.721319][   T10]      netlink_unicast+0x449/0x710
[ 1648.721319][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1648.721319][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1648.721319][   T10]      ___sys_sendmsg+0xee/0x170
[ 1648.721319][   T10]      __sys_sendmsg+0xcd/0x170
[ 1648.721319][   T10]      do_syscall_64+0xc6/0x1e0
[ 1648.721319][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1648.721319][   T10] 
[ 1648.723375][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1648.723375][   T10]      netdev_get_by_index+0x5e/0x80
[ 1648.723375][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1648.723375][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1648.723375][   T10]      ip6_route_add+0x1c/0x140
[ 1648.723375][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1648.723375][   T10]      addrconf_add_dev+0xe2/0x170
[ 1648.723375][   T10]      inet6_addr_add+0x12f/0xa40
[ 1648.723375][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1648.723375][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1648.723375][   T10]      netlink_rcv_skb+0x130/0x360
[ 1648.723375][   T10]      netlink_unicast+0x449/0x710
[ 1648.723375][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1648.723375][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1648.723375][   T10]      ___sys_sendmsg+0xee/0x170
[ 1648.723375][   T10]      __sys_sendmsg+0xcd/0x170
[ 1648.723375][   T10]      do_syscall_64+0xc6/0x1e0
[ 1648.723375][   T10] 
[ 1648.725389][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1648.725389][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1648.725389][   T10]      ipv6_find_idev+0x102/0x170
[ 1648.725389][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1648.725389][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1648.725389][   T10]      netlink_rcv_skb+0x130/0x360
[ 1648.725389][   T10]      netlink_unicast+0x449/0x710
[ 1648.725389][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1648.725389][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1648.725389][   T10]      ___sys_sendmsg+0xee/0x170
[ 1648.725389][   T10]      __sys_sendmsg+0xcd/0x170
[ 1648.725389][   T10]      do_syscall_64+0xc6/0x1e0
[ 1648.725389][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1648.725389][   T10] 
[ 1648.726923][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1648.726923][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1648.726923][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1648.726923][   T10]      ipv6_find_idev+0x102/0x170
[ 1648.726923][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1648.726923][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1648.726923][   T10]      netlink_rcv_skb+0x130/0x360
[ 1648.726923][   T10]      netlink_unicast+0x449/0x710
[ 1648.726923][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1648.726923][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1648.726923][   T10]      ___sys_sendmsg+0xee/0x170
[ 1648.726923][   T10]      __sys_sendmsg+0xcd/0x170
[ 1648.726923][   T10]      do_syscall_64+0xc6/0x1e0
[ 1648.726923][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1648.726923][   T10] 
[ 1658.969787][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1658.970168][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1658.970168][   T10]      dst_init+0x84/0x4a0
[ 1658.970168][   T10]      dst_alloc+0x97/0x150
[ 1658.970168][   T10]      ip6_dst_alloc+0x23/0x90
[ 1658.970168][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1658.970168][   T10]      ip6_pol_route+0x56f/0x840
[ 1658.970168][   T10]      fib6_rule_lookup+0x456/0x630
[ 1658.970168][   T10]      ip6_route_input+0x59c/0xa50
[ 1658.970168][   T10]      ipv6_rcv+0x397/0x810
[ 1658.970168][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1658.970168][   T10]      process_backlog+0x101/0x620
[ 1658.970168][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1658.970168][   T10]      net_rx_action+0x495/0xbe0
[ 1658.970168][   T10]      __do_softirq+0x1b5/0x7f6
[ 1658.970168][   T10] 
[ 1658.971854][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1658.971854][   T10]      netdev_get_by_index+0x5e/0x80
[ 1658.971854][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1658.971854][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1658.971854][   T10]      ip6_route_add+0x1c/0x140
[ 1658.971854][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1658.971854][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1658.971854][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1658.971854][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1658.971854][   T10]      netlink_rcv_skb+0x130/0x360
[ 1658.971854][   T10]      netlink_unicast+0x449/0x710
[ 1658.971854][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1658.971854][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1658.971854][   T10]      ___sys_sendmsg+0xee/0x170
[ 1658.971854][   T10]      __sys_sendmsg+0xcd/0x170
[ 1658.971854][   T10]      do_syscall_64+0xc6/0x1e0
[ 1658.971854][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1658.971854][   T10] 
[ 1658.973867][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1658.973867][   T10]      netdev_get_by_index+0x5e/0x80
[ 1658.973867][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1658.973867][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1658.973867][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1658.973867][   T10]      ipv6_add_addr+0x411/0x2000
[ 1658.973867][   T10]      inet6_addr_add+0x30e/0xa40
[ 1658.973867][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1658.973867][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1658.973867][   T10]      netlink_rcv_skb+0x130/0x360
[ 1658.973867][   T10]      netlink_unicast+0x449/0x710
[ 1658.973867][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1658.973867][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1658.973867][   T10]      ___sys_sendmsg+0xee/0x170
[ 1658.973867][   T10]      __sys_sendmsg+0xcd/0x170
[ 1658.973867][   T10]      do_syscall_64+0xc6/0x1e0
[ 1658.973867][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1658.973867][   T10] 
[ 1658.975892][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1658.975892][   T10]      netdev_get_by_index+0x5e/0x80
[ 1658.975892][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1658.975892][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1658.975892][   T10]      ip6_route_add+0x1c/0x140
[ 1658.975892][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1658.975892][   T10]      addrconf_add_dev+0xe2/0x170
[ 1658.975892][   T10]      inet6_addr_add+0x12f/0xa40
[ 1658.975892][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1658.975892][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1658.975892][   T10]      netlink_rcv_skb+0x130/0x360
[ 1658.975892][   T10]      netlink_unicast+0x449/0x710
[ 1658.975892][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1658.975892][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1658.975892][   T10]      ___sys_sendmsg+0xee/0x170
[ 1658.975892][   T10]      __sys_sendmsg+0xcd/0x170
[ 1658.975892][   T10]      do_syscall_64+0xc6/0x1e0
[ 1658.975892][   T10] 
[ 1658.977879][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1658.977879][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1658.977879][   T10]      ipv6_find_idev+0x102/0x170
[ 1658.977879][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1658.977879][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1658.977879][   T10]      netlink_rcv_skb+0x130/0x360
[ 1658.977879][   T10]      netlink_unicast+0x449/0x710
[ 1658.977879][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1658.977879][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1658.977879][   T10]      ___sys_sendmsg+0xee/0x170
[ 1658.977879][   T10]      __sys_sendmsg+0xcd/0x170
[ 1658.977879][   T10]      do_syscall_64+0xc6/0x1e0
[ 1658.977879][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1658.977879][   T10] 
[ 1658.979420][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1658.979420][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1658.979420][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1658.979420][   T10]      ipv6_find_idev+0x102/0x170
[ 1658.979420][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1658.979420][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1658.979420][   T10]      netlink_rcv_skb+0x130/0x360
[ 1658.979420][   T10]      netlink_unicast+0x449/0x710
[ 1658.979420][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1658.979420][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1658.979420][   T10]      ___sys_sendmsg+0xee/0x170
[ 1658.979420][   T10]      __sys_sendmsg+0xcd/0x170
[ 1658.979420][   T10]      do_syscall_64+0xc6/0x1e0
[ 1658.979420][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1658.979420][   T10] 
[ 1658.981116][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1658.981358][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1658.981358][   T10]      dst_init+0x84/0x4a0
[ 1658.981358][   T10]      dst_alloc+0x97/0x150
[ 1658.981358][   T10]      ip6_dst_alloc+0x23/0x90
[ 1658.981358][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1658.981358][   T10]      ip6_pol_route+0x56f/0x840
[ 1658.981358][   T10]      fib6_rule_lookup+0x456/0x630
[ 1658.981358][   T10]      ip6_route_input+0x59c/0xa50
[ 1658.981358][   T10]      ipv6_rcv+0x397/0x810
[ 1658.981358][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1658.981358][   T10]      process_backlog+0x101/0x620
[ 1658.981358][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1658.981358][   T10]      net_rx_action+0x495/0xbe0
[ 1658.981358][   T10]      __do_softirq+0x1b5/0x7f6
[ 1658.981358][   T10] 
[ 1658.983006][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1658.983006][   T10]      netdev_get_by_index+0x5e/0x80
[ 1658.983006][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1658.983006][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1658.983006][   T10]      ip6_route_add+0x1c/0x140
[ 1658.983006][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1658.983006][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1658.983006][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1658.983006][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1658.983006][   T10]      netlink_rcv_skb+0x130/0x360
[ 1658.983006][   T10]      netlink_unicast+0x449/0x710
[ 1658.983006][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1658.983006][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1658.983006][   T10]      ___sys_sendmsg+0xee/0x170
[ 1658.983006][   T10]      __sys_sendmsg+0xcd/0x170
[ 1658.983006][   T10]      do_syscall_64+0xc6/0x1e0
[ 1658.983006][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1658.983006][   T10] 
[ 1658.985013][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1658.985013][   T10]      netdev_get_by_index+0x5e/0x80
[ 1658.985013][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1658.985013][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1658.985013][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1658.985013][   T10]      ipv6_add_addr+0x411/0x2000
[ 1658.985013][   T10]      inet6_addr_add+0x30e/0xa40
[ 1658.985013][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1658.985013][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1658.985013][   T10]      netlink_rcv_skb+0x130/0x360
[ 1658.985013][   T10]      netlink_unicast+0x449/0x710
[ 1658.985013][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1658.985013][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1658.985013][   T10]      ___sys_sendmsg+0xee/0x170
[ 1658.985013][   T10]      __sys_sendmsg+0xcd/0x170
[ 1658.985013][   T10]      do_syscall_64+0xc6/0x1e0
[ 1658.985013][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1658.985013][   T10] 
[ 1658.987011][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1658.987011][   T10]      netdev_get_by_index+0x5e/0x80
[ 1658.987011][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1658.987011][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1658.987011][   T10]      ip6_route_add+0x1c/0x140
[ 1658.987011][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1658.987011][   T10]      addrconf_add_dev+0xe2/0x170
[ 1658.987011][   T10]      inet6_addr_add+0x12f/0xa40
[ 1658.987011][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1658.987011][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1658.987011][   T10]      netlink_rcv_skb+0x130/0x360
[ 1658.987011][   T10]      netlink_unicast+0x449/0x710
[ 1658.987011][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1658.987011][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1658.987011][   T10]      ___sys_sendmsg+0xee/0x170
[ 1658.987011][   T10]      __sys_sendmsg+0xcd/0x170
[ 1658.987011][   T10]      do_syscall_64+0xc6/0x1e0
[ 1658.987011][   T10] 
[ 1658.988977][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1658.988977][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1658.988977][   T10]      ipv6_find_idev+0x102/0x170
[ 1658.988977][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1658.988977][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1658.988977][   T10]      netlink_rcv_skb+0x130/0x360
[ 1658.988977][   T10]      netlink_unicast+0x449/0x710
[ 1658.988977][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1658.988977][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1658.988977][   T10]      ___sys_sendmsg+0xee/0x170
[ 1658.988977][   T10]      __sys_sendmsg+0xcd/0x170
[ 1658.988977][   T10]      do_syscall_64+0xc6/0x1e0
[ 1658.988977][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1658.988977][   T10] 
[ 1658.990521][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1658.990521][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1658.990521][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1658.990521][   T10]      ipv6_find_idev+0x102/0x170
[ 1658.990521][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1658.990521][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1658.990521][   T10]      netlink_rcv_skb+0x130/0x360
[ 1658.990521][   T10]      netlink_unicast+0x449/0x710
[ 1658.990521][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1658.990521][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1658.990521][   T10]      ___sys_sendmsg+0xee/0x170
[ 1658.990521][   T10]      __sys_sendmsg+0xcd/0x170
[ 1658.990521][   T10]      do_syscall_64+0xc6/0x1e0
[ 1658.990521][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1658.990521][   T10] 
[ 1669.233779][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1669.234194][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1669.234194][   T10]      dst_init+0x84/0x4a0
[ 1669.234194][   T10]      dst_alloc+0x97/0x150
[ 1669.234194][   T10]      ip6_dst_alloc+0x23/0x90
[ 1669.234194][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1669.234194][   T10]      ip6_pol_route+0x56f/0x840
[ 1669.234194][   T10]      fib6_rule_lookup+0x456/0x630
[ 1669.234194][   T10]      ip6_route_input+0x59c/0xa50
[ 1669.234194][   T10]      ipv6_rcv+0x397/0x810
[ 1669.234194][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1669.234194][   T10]      process_backlog+0x101/0x620
[ 1669.234194][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1669.234194][   T10]      net_rx_action+0x495/0xbe0
[ 1669.234194][   T10]      __do_softirq+0x1b5/0x7f6
[ 1669.234194][   T10] 
[ 1669.235920][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1669.235920][   T10]      netdev_get_by_index+0x5e/0x80
[ 1669.235920][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1669.235920][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1669.235920][   T10]      ip6_route_add+0x1c/0x140
[ 1669.235920][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1669.235920][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1669.235920][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1669.235920][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1669.235920][   T10]      netlink_rcv_skb+0x130/0x360
[ 1669.235920][   T10]      netlink_unicast+0x449/0x710
[ 1669.235920][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1669.235920][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1669.235920][   T10]      ___sys_sendmsg+0xee/0x170
[ 1669.235920][   T10]      __sys_sendmsg+0xcd/0x170
[ 1669.235920][   T10]      do_syscall_64+0xc6/0x1e0
[ 1669.235920][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1669.235920][   T10] 
[ 1669.237952][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1669.237952][   T10]      netdev_get_by_index+0x5e/0x80
[ 1669.237952][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1669.237952][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1669.237952][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1669.237952][   T10]      ipv6_add_addr+0x411/0x2000
[ 1669.237952][   T10]      inet6_addr_add+0x30e/0xa40
[ 1669.237952][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1669.237952][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1669.237952][   T10]      netlink_rcv_skb+0x130/0x360
[ 1669.237952][   T10]      netlink_unicast+0x449/0x710
[ 1669.237952][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1669.237952][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1669.237952][   T10]      ___sys_sendmsg+0xee/0x170
[ 1669.237952][   T10]      __sys_sendmsg+0xcd/0x170
[ 1669.237952][   T10]      do_syscall_64+0xc6/0x1e0
[ 1669.237952][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1669.237952][   T10] 
[ 1669.239984][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1669.239984][   T10]      netdev_get_by_index+0x5e/0x80
[ 1669.239984][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1669.239984][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1669.239984][   T10]      ip6_route_add+0x1c/0x140
[ 1669.239984][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1669.239984][   T10]      addrconf_add_dev+0xe2/0x170
[ 1669.239984][   T10]      inet6_addr_add+0x12f/0xa40
[ 1669.239984][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1669.239984][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1669.239984][   T10]      netlink_rcv_skb+0x130/0x360
[ 1669.239984][   T10]      netlink_unicast+0x449/0x710
[ 1669.239984][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1669.239984][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1669.239984][   T10]      ___sys_sendmsg+0xee/0x170
[ 1669.239984][   T10]      __sys_sendmsg+0xcd/0x170
[ 1669.239984][   T10]      do_syscall_64+0xc6/0x1e0
[ 1669.239984][   T10] 
[ 1669.241976][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1669.241976][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1669.241976][   T10]      ipv6_find_idev+0x102/0x170
[ 1669.241976][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1669.241976][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1669.241976][   T10]      netlink_rcv_skb+0x130/0x360
[ 1669.241976][   T10]      netlink_unicast+0x449/0x710
[ 1669.241976][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1669.241976][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1669.241976][   T10]      ___sys_sendmsg+0xee/0x170
[ 1669.241976][   T10]      __sys_sendmsg+0xcd/0x170
[ 1669.241976][   T10]      do_syscall_64+0xc6/0x1e0
[ 1669.241976][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1669.241976][   T10] 
[ 1669.243543][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1669.243543][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1669.243543][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1669.243543][   T10]      ipv6_find_idev+0x102/0x170
[ 1669.243543][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1669.243543][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1669.243543][   T10]      netlink_rcv_skb+0x130/0x360
[ 1669.243543][   T10]      netlink_unicast+0x449/0x710
[ 1669.243543][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1669.243543][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1669.243543][   T10]      ___sys_sendmsg+0xee/0x170
[ 1669.243543][   T10]      __sys_sendmsg+0xcd/0x170
[ 1669.243543][   T10]      do_syscall_64+0xc6/0x1e0
[ 1669.243543][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1669.243543][   T10] 
[ 1669.245283][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1669.245534][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1669.245534][   T10]      dst_init+0x84/0x4a0
[ 1669.245534][   T10]      dst_alloc+0x97/0x150
[ 1669.245534][   T10]      ip6_dst_alloc+0x23/0x90
[ 1669.245534][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1669.245534][   T10]      ip6_pol_route+0x56f/0x840
[ 1669.245534][   T10]      fib6_rule_lookup+0x456/0x630
[ 1669.245534][   T10]      ip6_route_input+0x59c/0xa50
[ 1669.245534][   T10]      ipv6_rcv+0x397/0x810
[ 1669.245534][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1669.245534][   T10]      process_backlog+0x101/0x620
[ 1669.245534][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1669.245534][   T10]      net_rx_action+0x495/0xbe0
[ 1669.245534][   T10]      __do_softirq+0x1b5/0x7f6
[ 1669.245534][   T10] 
[ 1669.247195][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1669.247195][   T10]      netdev_get_by_index+0x5e/0x80
[ 1669.247195][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1669.247195][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1669.247195][   T10]      ip6_route_add+0x1c/0x140
[ 1669.247195][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1669.247195][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1669.247195][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1669.247195][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1669.247195][   T10]      netlink_rcv_skb+0x130/0x360
[ 1669.247195][   T10]      netlink_unicast+0x449/0x710
[ 1669.247195][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1669.247195][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1669.247195][   T10]      ___sys_sendmsg+0xee/0x170
[ 1669.247195][   T10]      __sys_sendmsg+0xcd/0x170
[ 1669.247195][   T10]      do_syscall_64+0xc6/0x1e0
[ 1669.247195][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1669.247195][   T10] 
[ 1669.249224][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1669.249224][   T10]      netdev_get_by_index+0x5e/0x80
[ 1669.249224][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1669.249224][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1669.249224][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1669.249224][   T10]      ipv6_add_addr+0x411/0x2000
[ 1669.249224][   T10]      inet6_addr_add+0x30e/0xa40
[ 1669.249224][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1669.249224][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1669.249224][   T10]      netlink_rcv_skb+0x130/0x360
[ 1669.249224][   T10]      netlink_unicast+0x449/0x710
[ 1669.249224][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1669.249224][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1669.249224][   T10]      ___sys_sendmsg+0xee/0x170
[ 1669.249224][   T10]      __sys_sendmsg+0xcd/0x170
[ 1669.249224][   T10]      do_syscall_64+0xc6/0x1e0
[ 1669.249224][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1669.249224][   T10] 
[ 1669.251253][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1669.251253][   T10]      netdev_get_by_index+0x5e/0x80
[ 1669.251253][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1669.251253][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1669.251253][   T10]      ip6_route_add+0x1c/0x140
[ 1669.251253][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1669.251253][   T10]      addrconf_add_dev+0xe2/0x170
[ 1669.251253][   T10]      inet6_addr_add+0x12f/0xa40
[ 1669.251253][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1669.251253][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1669.251253][   T10]      netlink_rcv_skb+0x130/0x360
[ 1669.251253][   T10]      netlink_unicast+0x449/0x710
[ 1669.251253][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1669.251253][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1669.251253][   T10]      ___sys_sendmsg+0xee/0x170
[ 1669.251253][   T10]      __sys_sendmsg+0xcd/0x170
[ 1669.251253][   T10]      do_syscall_64+0xc6/0x1e0
[ 1669.251253][   T10] 
[ 1669.253238][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1669.253238][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1669.253238][   T10]      ipv6_find_idev+0x102/0x170
[ 1669.253238][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1669.253238][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1669.253238][   T10]      netlink_rcv_skb+0x130/0x360
[ 1669.253238][   T10]      netlink_unicast+0x449/0x710
[ 1669.253238][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1669.253238][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1669.253238][   T10]      ___sys_sendmsg+0xee/0x170
[ 1669.253238][   T10]      __sys_sendmsg+0xcd/0x170
[ 1669.253238][   T10]      do_syscall_64+0xc6/0x1e0
[ 1669.253238][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1669.253238][   T10] 
[ 1669.254800][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1669.254800][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1669.254800][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1669.254800][   T10]      ipv6_find_idev+0x102/0x170
[ 1669.254800][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1669.254800][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1669.254800][   T10]      netlink_rcv_skb+0x130/0x360
[ 1669.254800][   T10]      netlink_unicast+0x449/0x710
[ 1669.254800][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1669.254800][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1669.254800][   T10]      ___sys_sendmsg+0xee/0x170
[ 1669.254800][   T10]      __sys_sendmsg+0xcd/0x170
[ 1669.254800][   T10]      do_syscall_64+0xc6/0x1e0
[ 1669.254800][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1669.254800][   T10] 
[ 1679.497782][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1679.498175][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1679.498175][   T10]      dst_init+0x84/0x4a0
[ 1679.498175][   T10]      dst_alloc+0x97/0x150
[ 1679.498175][   T10]      ip6_dst_alloc+0x23/0x90
[ 1679.498175][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1679.498175][   T10]      ip6_pol_route+0x56f/0x840
[ 1679.498175][   T10]      fib6_rule_lookup+0x456/0x630
[ 1679.498175][   T10]      ip6_route_input+0x59c/0xa50
[ 1679.498175][   T10]      ipv6_rcv+0x397/0x810
[ 1679.498175][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1679.498175][   T10]      process_backlog+0x101/0x620
[ 1679.498175][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1679.498175][   T10]      net_rx_action+0x495/0xbe0
[ 1679.498175][   T10]      __do_softirq+0x1b5/0x7f6
[ 1679.498175][   T10] 
[ 1679.499864][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1679.499864][   T10]      netdev_get_by_index+0x5e/0x80
[ 1679.499864][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1679.499864][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1679.499864][   T10]      ip6_route_add+0x1c/0x140
[ 1679.499864][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1679.499864][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1679.499864][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1679.499864][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1679.499864][   T10]      netlink_rcv_skb+0x130/0x360
[ 1679.499864][   T10]      netlink_unicast+0x449/0x710
[ 1679.499864][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1679.499864][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1679.499864][   T10]      ___sys_sendmsg+0xee/0x170
[ 1679.499864][   T10]      __sys_sendmsg+0xcd/0x170
[ 1679.499864][   T10]      do_syscall_64+0xc6/0x1e0
[ 1679.499864][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1679.499864][   T10] 
[ 1679.501866][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1679.501866][   T10]      netdev_get_by_index+0x5e/0x80
[ 1679.501866][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1679.501866][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1679.501866][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1679.501866][   T10]      ipv6_add_addr+0x411/0x2000
[ 1679.501866][   T10]      inet6_addr_add+0x30e/0xa40
[ 1679.501866][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1679.501866][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1679.501866][   T10]      netlink_rcv_skb+0x130/0x360
[ 1679.501866][   T10]      netlink_unicast+0x449/0x710
[ 1679.501866][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1679.501866][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1679.501866][   T10]      ___sys_sendmsg+0xee/0x170
[ 1679.501866][   T10]      __sys_sendmsg+0xcd/0x170
[ 1679.501866][   T10]      do_syscall_64+0xc6/0x1e0
[ 1679.501866][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1679.501866][   T10] 
[ 1679.503885][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1679.503885][   T10]      netdev_get_by_index+0x5e/0x80
[ 1679.503885][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1679.503885][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1679.503885][   T10]      ip6_route_add+0x1c/0x140
[ 1679.503885][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1679.503885][   T10]      addrconf_add_dev+0xe2/0x170
[ 1679.503885][   T10]      inet6_addr_add+0x12f/0xa40
[ 1679.503885][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1679.503885][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1679.503885][   T10]      netlink_rcv_skb+0x130/0x360
[ 1679.503885][   T10]      netlink_unicast+0x449/0x710
[ 1679.503885][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1679.503885][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1679.503885][   T10]      ___sys_sendmsg+0xee/0x170
[ 1679.503885][   T10]      __sys_sendmsg+0xcd/0x170
[ 1679.503885][   T10]      do_syscall_64+0xc6/0x1e0
[ 1679.503885][   T10] 
[ 1679.505875][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1679.505875][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1679.505875][   T10]      ipv6_find_idev+0x102/0x170
[ 1679.505875][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1679.505875][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1679.505875][   T10]      netlink_rcv_skb+0x130/0x360
[ 1679.505875][   T10]      netlink_unicast+0x449/0x710
[ 1679.505875][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1679.505875][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1679.505875][   T10]      ___sys_sendmsg+0xee/0x170
[ 1679.505875][   T10]      __sys_sendmsg+0xcd/0x170
[ 1679.505875][   T10]      do_syscall_64+0xc6/0x1e0
[ 1679.505875][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1679.505875][   T10] 
[ 1679.507435][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1679.507435][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1679.507435][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1679.507435][   T10]      ipv6_find_idev+0x102/0x170
[ 1679.507435][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1679.507435][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1679.507435][   T10]      netlink_rcv_skb+0x130/0x360
[ 1679.507435][   T10]      netlink_unicast+0x449/0x710
[ 1679.507435][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1679.507435][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1679.507435][   T10]      ___sys_sendmsg+0xee/0x170
[ 1679.507435][   T10]      __sys_sendmsg+0xcd/0x170
[ 1679.507435][   T10]      do_syscall_64+0xc6/0x1e0
[ 1679.507435][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1679.507435][   T10] 
[ 1679.509136][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1679.509381][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1679.509381][   T10]      dst_init+0x84/0x4a0
[ 1679.509381][   T10]      dst_alloc+0x97/0x150
[ 1679.509381][   T10]      ip6_dst_alloc+0x23/0x90
[ 1679.509381][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1679.509381][   T10]      ip6_pol_route+0x56f/0x840
[ 1679.509381][   T10]      fib6_rule_lookup+0x456/0x630
[ 1679.509381][   T10]      ip6_route_input+0x59c/0xa50
[ 1679.509381][   T10]      ipv6_rcv+0x397/0x810
[ 1679.509381][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1679.509381][   T10]      process_backlog+0x101/0x620
[ 1679.509381][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1679.509381][   T10]      net_rx_action+0x495/0xbe0
[ 1679.509381][   T10]      __do_softirq+0x1b5/0x7f6
[ 1679.509381][   T10] 
[ 1679.511021][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1679.511021][   T10]      netdev_get_by_index+0x5e/0x80
[ 1679.511021][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1679.511021][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1679.511021][   T10]      ip6_route_add+0x1c/0x140
[ 1679.511021][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1679.511021][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1679.511021][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1679.511021][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1679.511021][   T10]      netlink_rcv_skb+0x130/0x360
[ 1679.511021][   T10]      netlink_unicast+0x449/0x710
[ 1679.511021][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1679.511021][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1679.511021][   T10]      ___sys_sendmsg+0xee/0x170
[ 1679.511021][   T10]      __sys_sendmsg+0xcd/0x170
[ 1679.511021][   T10]      do_syscall_64+0xc6/0x1e0
[ 1679.511021][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1679.511021][   T10] 
[ 1679.513031][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1679.513031][   T10]      netdev_get_by_index+0x5e/0x80
[ 1679.513031][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1679.513031][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1679.513031][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1679.513031][   T10]      ipv6_add_addr+0x411/0x2000
[ 1679.513031][   T10]      inet6_addr_add+0x30e/0xa40
[ 1679.513031][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1679.513031][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1679.513031][   T10]      netlink_rcv_skb+0x130/0x360
[ 1679.513031][   T10]      netlink_unicast+0x449/0x710
[ 1679.513031][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1679.513031][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1679.513031][   T10]      ___sys_sendmsg+0xee/0x170
[ 1679.513031][   T10]      __sys_sendmsg+0xcd/0x170
[ 1679.513031][   T10]      do_syscall_64+0xc6/0x1e0
[ 1679.513031][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1679.513031][   T10] 
[ 1679.515112][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1679.515112][   T10]      netdev_get_by_index+0x5e/0x80
[ 1679.515112][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1679.515112][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1679.515112][   T10]      ip6_route_add+0x1c/0x140
[ 1679.515112][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1679.515112][   T10]      addrconf_add_dev+0xe2/0x170
[ 1679.515112][   T10]      inet6_addr_add+0x12f/0xa40
[ 1679.515112][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1679.515112][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1679.515112][   T10]      netlink_rcv_skb+0x130/0x360
[ 1679.515112][   T10]      netlink_unicast+0x449/0x710
[ 1679.515112][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1679.515112][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1679.515112][   T10]      ___sys_sendmsg+0xee/0x170
[ 1679.515112][   T10]      __sys_sendmsg+0xcd/0x170
[ 1679.515112][   T10]      do_syscall_64+0xc6/0x1e0
[ 1679.515112][   T10] 
[ 1679.517126][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1679.517126][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1679.517126][   T10]      ipv6_find_idev+0x102/0x170
[ 1679.517126][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1679.517126][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1679.517126][   T10]      netlink_rcv_skb+0x130/0x360
[ 1679.517126][   T10]      netlink_unicast+0x449/0x710
[ 1679.517126][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1679.517126][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1679.517126][   T10]      ___sys_sendmsg+0xee/0x170
[ 1679.517126][   T10]      __sys_sendmsg+0xcd/0x170
[ 1679.517126][   T10]      do_syscall_64+0xc6/0x1e0
[ 1679.517126][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1679.517126][   T10] 
[ 1679.518707][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1679.518707][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1679.518707][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1679.518707][   T10]      ipv6_find_idev+0x102/0x170
[ 1679.518707][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1679.518707][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1679.518707][   T10]      netlink_rcv_skb+0x130/0x360
[ 1679.518707][   T10]      netlink_unicast+0x449/0x710
[ 1679.518707][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1679.518707][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1679.518707][   T10]      ___sys_sendmsg+0xee/0x170
[ 1679.518707][   T10]      __sys_sendmsg+0xcd/0x170
[ 1679.518707][   T10]      do_syscall_64+0xc6/0x1e0
[ 1679.518707][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1679.518707][   T10] 
[ 1689.761787][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1689.762273][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1689.762273][   T10]      dst_init+0x84/0x4a0
[ 1689.762273][   T10]      dst_alloc+0x97/0x150
[ 1689.762273][   T10]      ip6_dst_alloc+0x23/0x90
[ 1689.762273][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1689.762273][   T10]      ip6_pol_route+0x56f/0x840
[ 1689.762273][   T10]      fib6_rule_lookup+0x456/0x630
[ 1689.762273][   T10]      ip6_route_input+0x59c/0xa50
[ 1689.762273][   T10]      ipv6_rcv+0x397/0x810
[ 1689.762273][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1689.762273][   T10]      process_backlog+0x101/0x620
[ 1689.762273][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1689.762273][   T10]      net_rx_action+0x495/0xbe0
[ 1689.762273][   T10]      __do_softirq+0x1b5/0x7f6
[ 1689.762273][   T10] 
[ 1689.764005][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1689.764005][   T10]      netdev_get_by_index+0x5e/0x80
[ 1689.764005][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1689.764005][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1689.764005][   T10]      ip6_route_add+0x1c/0x140
[ 1689.764005][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1689.764005][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1689.764005][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1689.764005][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1689.764005][   T10]      netlink_rcv_skb+0x130/0x360
[ 1689.764005][   T10]      netlink_unicast+0x449/0x710
[ 1689.764005][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1689.764005][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1689.764005][   T10]      ___sys_sendmsg+0xee/0x170
[ 1689.764005][   T10]      __sys_sendmsg+0xcd/0x170
[ 1689.764005][   T10]      do_syscall_64+0xc6/0x1e0
[ 1689.764005][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1689.764005][   T10] 
[ 1689.766118][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1689.766118][   T10]      netdev_get_by_index+0x5e/0x80
[ 1689.766118][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1689.766118][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1689.766118][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1689.766118][   T10]      ipv6_add_addr+0x411/0x2000
[ 1689.766118][   T10]      inet6_addr_add+0x30e/0xa40
[ 1689.766118][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1689.766118][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1689.766118][   T10]      netlink_rcv_skb+0x130/0x360
[ 1689.766118][   T10]      netlink_unicast+0x449/0x710
[ 1689.766118][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1689.766118][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1689.766118][   T10]      ___sys_sendmsg+0xee/0x170
[ 1689.766118][   T10]      __sys_sendmsg+0xcd/0x170
[ 1689.766118][   T10]      do_syscall_64+0xc6/0x1e0
[ 1689.766118][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1689.766118][   T10] 
[ 1689.768179][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1689.768179][   T10]      netdev_get_by_index+0x5e/0x80
[ 1689.768179][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1689.768179][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1689.768179][   T10]      ip6_route_add+0x1c/0x140
[ 1689.768179][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1689.768179][   T10]      addrconf_add_dev+0xe2/0x170
[ 1689.768179][   T10]      inet6_addr_add+0x12f/0xa40
[ 1689.768179][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1689.768179][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1689.768179][   T10]      netlink_rcv_skb+0x130/0x360
[ 1689.768179][   T10]      netlink_unicast+0x449/0x710
[ 1689.768179][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1689.768179][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1689.768179][   T10]      ___sys_sendmsg+0xee/0x170
[ 1689.768179][   T10]      __sys_sendmsg+0xcd/0x170
[ 1689.768179][   T10]      do_syscall_64+0xc6/0x1e0
[ 1689.768179][   T10] 
[ 1689.770213][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1689.770213][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1689.770213][   T10]      ipv6_find_idev+0x102/0x170
[ 1689.770213][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1689.770213][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1689.770213][   T10]      netlink_rcv_skb+0x130/0x360
[ 1689.770213][   T10]      netlink_unicast+0x449/0x710
[ 1689.770213][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1689.770213][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1689.770213][   T10]      ___sys_sendmsg+0xee/0x170
[ 1689.770213][   T10]      __sys_sendmsg+0xcd/0x170
[ 1689.770213][   T10]      do_syscall_64+0xc6/0x1e0
[ 1689.770213][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1689.770213][   T10] 
[ 1689.771806][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1689.771806][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1689.771806][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1689.771806][   T10]      ipv6_find_idev+0x102/0x170
[ 1689.771806][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1689.771806][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1689.771806][   T10]      netlink_rcv_skb+0x130/0x360
[ 1689.771806][   T10]      netlink_unicast+0x449/0x710
[ 1689.771806][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1689.771806][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1689.771806][   T10]      ___sys_sendmsg+0xee/0x170
[ 1689.771806][   T10]      __sys_sendmsg+0xcd/0x170
[ 1689.771806][   T10]      do_syscall_64+0xc6/0x1e0
[ 1689.771806][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1689.771806][   T10] 
[ 1689.773572][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1689.773841][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1689.773841][   T10]      dst_init+0x84/0x4a0
[ 1689.773841][   T10]      dst_alloc+0x97/0x150
[ 1689.773841][   T10]      ip6_dst_alloc+0x23/0x90
[ 1689.773841][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1689.773841][   T10]      ip6_pol_route+0x56f/0x840
[ 1689.773841][   T10]      fib6_rule_lookup+0x456/0x630
[ 1689.773841][   T10]      ip6_route_input+0x59c/0xa50
[ 1689.773841][   T10]      ipv6_rcv+0x397/0x810
[ 1689.773841][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1689.773841][   T10]      process_backlog+0x101/0x620
[ 1689.773841][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1689.773841][   T10]      net_rx_action+0x495/0xbe0
[ 1689.773841][   T10]      __do_softirq+0x1b5/0x7f6
[ 1689.773841][   T10] 
[ 1689.775560][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1689.775560][   T10]      netdev_get_by_index+0x5e/0x80
[ 1689.775560][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1689.775560][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1689.775560][   T10]      ip6_route_add+0x1c/0x140
[ 1689.775560][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1689.775560][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1689.775560][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1689.775560][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1689.775560][   T10]      netlink_rcv_skb+0x130/0x360
[ 1689.775560][   T10]      netlink_unicast+0x449/0x710
[ 1689.775560][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1689.775560][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1689.775560][   T10]      ___sys_sendmsg+0xee/0x170
[ 1689.775560][   T10]      __sys_sendmsg+0xcd/0x170
[ 1689.775560][   T10]      do_syscall_64+0xc6/0x1e0
[ 1689.775560][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1689.775560][   T10] 
[ 1689.777618][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1689.777618][   T10]      netdev_get_by_index+0x5e/0x80
[ 1689.777618][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1689.777618][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1689.777618][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1689.777618][   T10]      ipv6_add_addr+0x411/0x2000
[ 1689.777618][   T10]      inet6_addr_add+0x30e/0xa40
[ 1689.777618][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1689.777618][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1689.777618][   T10]      netlink_rcv_skb+0x130/0x360
[ 1689.777618][   T10]      netlink_unicast+0x449/0x710
[ 1689.777618][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1689.777618][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1689.777618][   T10]      ___sys_sendmsg+0xee/0x170
[ 1689.777618][   T10]      __sys_sendmsg+0xcd/0x170
[ 1689.777618][   T10]      do_syscall_64+0xc6/0x1e0
[ 1689.777618][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1689.777618][   T10] 
[ 1689.779686][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1689.779686][   T10]      netdev_get_by_index+0x5e/0x80
[ 1689.779686][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1689.779686][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1689.779686][   T10]      ip6_route_add+0x1c/0x140
[ 1689.779686][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1689.779686][   T10]      addrconf_add_dev+0xe2/0x170
[ 1689.779686][   T10]      inet6_addr_add+0x12f/0xa40
[ 1689.779686][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1689.779686][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1689.779686][   T10]      netlink_rcv_skb+0x130/0x360
[ 1689.779686][   T10]      netlink_unicast+0x449/0x710
[ 1689.779686][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1689.779686][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1689.779686][   T10]      ___sys_sendmsg+0xee/0x170
[ 1689.779686][   T10]      __sys_sendmsg+0xcd/0x170
[ 1689.779686][   T10]      do_syscall_64+0xc6/0x1e0
[ 1689.779686][   T10] 
[ 1689.781769][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1689.781769][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1689.781769][   T10]      ipv6_find_idev+0x102/0x170
[ 1689.781769][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1689.781769][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1689.781769][   T10]      netlink_rcv_skb+0x130/0x360
[ 1689.781769][   T10]      netlink_unicast+0x449/0x710
[ 1689.781769][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1689.781769][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1689.781769][   T10]      ___sys_sendmsg+0xee/0x170
[ 1689.781769][   T10]      __sys_sendmsg+0xcd/0x170
[ 1689.781769][   T10]      do_syscall_64+0xc6/0x1e0
[ 1689.781769][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1689.781769][   T10] 
[ 1689.783362][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1689.783362][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1689.783362][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1689.783362][   T10]      ipv6_find_idev+0x102/0x170
[ 1689.783362][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1689.783362][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1689.783362][   T10]      netlink_rcv_skb+0x130/0x360
[ 1689.783362][   T10]      netlink_unicast+0x449/0x710
[ 1689.783362][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1689.783362][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1689.783362][   T10]      ___sys_sendmsg+0xee/0x170
[ 1689.783362][   T10]      __sys_sendmsg+0xcd/0x170
[ 1689.783362][   T10]      do_syscall_64+0xc6/0x1e0
[ 1689.783362][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1689.783362][   T10] 
[ 1700.025811][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1700.026267][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1700.026267][   T10]      dst_init+0x84/0x4a0
[ 1700.026267][   T10]      dst_alloc+0x97/0x150
[ 1700.026267][   T10]      ip6_dst_alloc+0x23/0x90
[ 1700.026267][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1700.026267][   T10]      ip6_pol_route+0x56f/0x840
[ 1700.026267][   T10]      fib6_rule_lookup+0x456/0x630
[ 1700.026267][   T10]      ip6_route_input+0x59c/0xa50
[ 1700.026267][   T10]      ipv6_rcv+0x397/0x810
[ 1700.026267][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1700.026267][   T10]      process_backlog+0x101/0x620
[ 1700.026267][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1700.026267][   T10]      net_rx_action+0x495/0xbe0
[ 1700.026267][   T10]      __do_softirq+0x1b5/0x7f6
[ 1700.026267][   T10] 
[ 1700.027997][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1700.027997][   T10]      netdev_get_by_index+0x5e/0x80
[ 1700.027997][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1700.027997][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1700.027997][   T10]      ip6_route_add+0x1c/0x140
[ 1700.027997][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1700.027997][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1700.027997][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1700.027997][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1700.027997][   T10]      netlink_rcv_skb+0x130/0x360
[ 1700.027997][   T10]      netlink_unicast+0x449/0x710
[ 1700.027997][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1700.027997][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1700.027997][   T10]      ___sys_sendmsg+0xee/0x170
[ 1700.027997][   T10]      __sys_sendmsg+0xcd/0x170
[ 1700.027997][   T10]      do_syscall_64+0xc6/0x1e0
[ 1700.027997][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1700.027997][   T10] 
[ 1700.030058][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1700.030058][   T10]      netdev_get_by_index+0x5e/0x80
[ 1700.030058][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1700.030058][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1700.030058][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1700.030058][   T10]      ipv6_add_addr+0x411/0x2000
[ 1700.030058][   T10]      inet6_addr_add+0x30e/0xa40
[ 1700.030058][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1700.030058][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1700.030058][   T10]      netlink_rcv_skb+0x130/0x360
[ 1700.030058][   T10]      netlink_unicast+0x449/0x710
[ 1700.030058][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1700.030058][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1700.030058][   T10]      ___sys_sendmsg+0xee/0x170
[ 1700.030058][   T10]      __sys_sendmsg+0xcd/0x170
[ 1700.030058][   T10]      do_syscall_64+0xc6/0x1e0
[ 1700.030058][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1700.030058][   T10] 
[ 1700.032119][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1700.032119][   T10]      netdev_get_by_index+0x5e/0x80
[ 1700.032119][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1700.032119][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1700.032119][   T10]      ip6_route_add+0x1c/0x140
[ 1700.032119][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1700.032119][   T10]      addrconf_add_dev+0xe2/0x170
[ 1700.032119][   T10]      inet6_addr_add+0x12f/0xa40
[ 1700.032119][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1700.032119][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1700.032119][   T10]      netlink_rcv_skb+0x130/0x360
[ 1700.032119][   T10]      netlink_unicast+0x449/0x710
[ 1700.032119][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1700.032119][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1700.032119][   T10]      ___sys_sendmsg+0xee/0x170
[ 1700.032119][   T10]      __sys_sendmsg+0xcd/0x170
[ 1700.032119][   T10]      do_syscall_64+0xc6/0x1e0
[ 1700.032119][   T10] 
[ 1700.034168][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1700.034168][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1700.034168][   T10]      ipv6_find_idev+0x102/0x170
[ 1700.034168][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1700.034168][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1700.034168][   T10]      netlink_rcv_skb+0x130/0x360
[ 1700.034168][   T10]      netlink_unicast+0x449/0x710
[ 1700.034168][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1700.034168][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1700.034168][   T10]      ___sys_sendmsg+0xee/0x170
[ 1700.034168][   T10]      __sys_sendmsg+0xcd/0x170
[ 1700.034168][   T10]      do_syscall_64+0xc6/0x1e0
[ 1700.034168][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1700.034168][   T10] 
[ 1700.035815][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1700.035815][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1700.035815][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1700.035815][   T10]      ipv6_find_idev+0x102/0x170
[ 1700.035815][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1700.035815][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1700.035815][   T10]      netlink_rcv_skb+0x130/0x360
[ 1700.035815][   T10]      netlink_unicast+0x449/0x710
[ 1700.035815][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1700.035815][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1700.035815][   T10]      ___sys_sendmsg+0xee/0x170
[ 1700.035815][   T10]      __sys_sendmsg+0xcd/0x170
[ 1700.035815][   T10]      do_syscall_64+0xc6/0x1e0
[ 1700.035815][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1700.035815][   T10] 
[ 1700.037548][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1700.037809][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1700.037809][   T10]      dst_init+0x84/0x4a0
[ 1700.037809][   T10]      dst_alloc+0x97/0x150
[ 1700.037809][   T10]      ip6_dst_alloc+0x23/0x90
[ 1700.037809][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1700.037809][   T10]      ip6_pol_route+0x56f/0x840
[ 1700.037809][   T10]      fib6_rule_lookup+0x456/0x630
[ 1700.037809][   T10]      ip6_route_input+0x59c/0xa50
[ 1700.037809][   T10]      ipv6_rcv+0x397/0x810
[ 1700.037809][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1700.037809][   T10]      process_backlog+0x101/0x620
[ 1700.037809][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1700.037809][   T10]      net_rx_action+0x495/0xbe0
[ 1700.037809][   T10]      __do_softirq+0x1b5/0x7f6
[ 1700.037809][   T10] 
[ 1700.039498][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1700.039498][   T10]      netdev_get_by_index+0x5e/0x80
[ 1700.039498][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1700.039498][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1700.039498][   T10]      ip6_route_add+0x1c/0x140
[ 1700.039498][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1700.039498][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1700.039498][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1700.039498][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1700.039498][   T10]      netlink_rcv_skb+0x130/0x360
[ 1700.039498][   T10]      netlink_unicast+0x449/0x710
[ 1700.039498][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1700.039498][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1700.039498][   T10]      ___sys_sendmsg+0xee/0x170
[ 1700.039498][   T10]      __sys_sendmsg+0xcd/0x170
[ 1700.039498][   T10]      do_syscall_64+0xc6/0x1e0
[ 1700.039498][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1700.039498][   T10] 
[ 1700.041556][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1700.041556][   T10]      netdev_get_by_index+0x5e/0x80
[ 1700.041556][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1700.041556][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1700.041556][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1700.041556][   T10]      ipv6_add_addr+0x411/0x2000
[ 1700.041556][   T10]      inet6_addr_add+0x30e/0xa40
[ 1700.041556][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1700.041556][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1700.041556][   T10]      netlink_rcv_skb+0x130/0x360
[ 1700.041556][   T10]      netlink_unicast+0x449/0x710
[ 1700.041556][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1700.041556][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1700.041556][   T10]      ___sys_sendmsg+0xee/0x170
[ 1700.041556][   T10]      __sys_sendmsg+0xcd/0x170
[ 1700.041556][   T10]      do_syscall_64+0xc6/0x1e0
[ 1700.041556][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1700.041556][   T10] 
[ 1700.043605][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1700.043605][   T10]      netdev_get_by_index+0x5e/0x80
[ 1700.043605][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1700.043605][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1700.043605][   T10]      ip6_route_add+0x1c/0x140
[ 1700.043605][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1700.043605][   T10]      addrconf_add_dev+0xe2/0x170
[ 1700.043605][   T10]      inet6_addr_add+0x12f/0xa40
[ 1700.043605][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1700.043605][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1700.043605][   T10]      netlink_rcv_skb+0x130/0x360
[ 1700.043605][   T10]      netlink_unicast+0x449/0x710
[ 1700.043605][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1700.043605][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1700.043605][   T10]      ___sys_sendmsg+0xee/0x170
[ 1700.043605][   T10]      __sys_sendmsg+0xcd/0x170
[ 1700.043605][   T10]      do_syscall_64+0xc6/0x1e0
[ 1700.043605][   T10] 
[ 1700.045628][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1700.045628][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1700.045628][   T10]      ipv6_find_idev+0x102/0x170
[ 1700.045628][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1700.045628][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1700.045628][   T10]      netlink_rcv_skb+0x130/0x360
[ 1700.045628][   T10]      netlink_unicast+0x449/0x710
[ 1700.045628][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1700.045628][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1700.045628][   T10]      ___sys_sendmsg+0xee/0x170
[ 1700.045628][   T10]      __sys_sendmsg+0xcd/0x170
[ 1700.045628][   T10]      do_syscall_64+0xc6/0x1e0
[ 1700.045628][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1700.045628][   T10] 
[ 1700.047209][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1700.047209][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1700.047209][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1700.047209][   T10]      ipv6_find_idev+0x102/0x170
[ 1700.047209][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1700.047209][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1700.047209][   T10]      netlink_rcv_skb+0x130/0x360
[ 1700.047209][   T10]      netlink_unicast+0x449/0x710
[ 1700.047209][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1700.047209][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1700.047209][   T10]      ___sys_sendmsg+0xee/0x170
[ 1700.047209][   T10]      __sys_sendmsg+0xcd/0x170
[ 1700.047209][   T10]      do_syscall_64+0xc6/0x1e0
[ 1700.047209][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1700.047209][   T10] 
[ 1710.289778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1710.290186][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1710.290186][   T10]      dst_init+0x84/0x4a0
[ 1710.290186][   T10]      dst_alloc+0x97/0x150
[ 1710.290186][   T10]      ip6_dst_alloc+0x23/0x90
[ 1710.290186][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1710.290186][   T10]      ip6_pol_route+0x56f/0x840
[ 1710.290186][   T10]      fib6_rule_lookup+0x456/0x630
[ 1710.290186][   T10]      ip6_route_input+0x59c/0xa50
[ 1710.290186][   T10]      ipv6_rcv+0x397/0x810
[ 1710.290186][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1710.290186][   T10]      process_backlog+0x101/0x620
[ 1710.290186][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1710.290186][   T10]      net_rx_action+0x495/0xbe0
[ 1710.290186][   T10]      __do_softirq+0x1b5/0x7f6
[ 1710.290186][   T10] 
[ 1710.291909][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1710.291909][   T10]      netdev_get_by_index+0x5e/0x80
[ 1710.291909][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1710.291909][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1710.291909][   T10]      ip6_route_add+0x1c/0x140
[ 1710.291909][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1710.291909][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1710.291909][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1710.291909][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1710.291909][   T10]      netlink_rcv_skb+0x130/0x360
[ 1710.291909][   T10]      netlink_unicast+0x449/0x710
[ 1710.291909][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1710.291909][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1710.291909][   T10]      ___sys_sendmsg+0xee/0x170
[ 1710.291909][   T10]      __sys_sendmsg+0xcd/0x170
[ 1710.291909][   T10]      do_syscall_64+0xc6/0x1e0
[ 1710.291909][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1710.291909][   T10] 
[ 1710.293962][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1710.293962][   T10]      netdev_get_by_index+0x5e/0x80
[ 1710.293962][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1710.293962][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1710.293962][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1710.293962][   T10]      ipv6_add_addr+0x411/0x2000
[ 1710.293962][   T10]      inet6_addr_add+0x30e/0xa40
[ 1710.293962][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1710.293962][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1710.293962][   T10]      netlink_rcv_skb+0x130/0x360
[ 1710.293962][   T10]      netlink_unicast+0x449/0x710
[ 1710.293962][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1710.293962][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1710.293962][   T10]      ___sys_sendmsg+0xee/0x170
[ 1710.293962][   T10]      __sys_sendmsg+0xcd/0x170
[ 1710.293962][   T10]      do_syscall_64+0xc6/0x1e0
[ 1710.293962][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1710.293962][   T10] 
[ 1710.296032][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1710.296032][   T10]      netdev_get_by_index+0x5e/0x80
[ 1710.296032][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1710.296032][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1710.296032][   T10]      ip6_route_add+0x1c/0x140
[ 1710.296032][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1710.296032][   T10]      addrconf_add_dev+0xe2/0x170
[ 1710.296032][   T10]      inet6_addr_add+0x12f/0xa40
[ 1710.296032][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1710.296032][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1710.296032][   T10]      netlink_rcv_skb+0x130/0x360
[ 1710.296032][   T10]      netlink_unicast+0x449/0x710
[ 1710.296032][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1710.296032][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1710.296032][   T10]      ___sys_sendmsg+0xee/0x170
[ 1710.296032][   T10]      __sys_sendmsg+0xcd/0x170
[ 1710.296032][   T10]      do_syscall_64+0xc6/0x1e0
[ 1710.296032][   T10] 
[ 1710.298055][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1710.298055][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1710.298055][   T10]      ipv6_find_idev+0x102/0x170
[ 1710.298055][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1710.298055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1710.298055][   T10]      netlink_rcv_skb+0x130/0x360
[ 1710.298055][   T10]      netlink_unicast+0x449/0x710
[ 1710.298055][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1710.298055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1710.298055][   T10]      ___sys_sendmsg+0xee/0x170
[ 1710.298055][   T10]      __sys_sendmsg+0xcd/0x170
[ 1710.298055][   T10]      do_syscall_64+0xc6/0x1e0
[ 1710.298055][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1710.298055][   T10] 
[ 1710.299660][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1710.299660][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1710.299660][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1710.299660][   T10]      ipv6_find_idev+0x102/0x170
[ 1710.299660][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1710.299660][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1710.299660][   T10]      netlink_rcv_skb+0x130/0x360
[ 1710.299660][   T10]      netlink_unicast+0x449/0x710
[ 1710.299660][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1710.299660][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1710.299660][   T10]      ___sys_sendmsg+0xee/0x170
[ 1710.299660][   T10]      __sys_sendmsg+0xcd/0x170
[ 1710.299660][   T10]      do_syscall_64+0xc6/0x1e0
[ 1710.299660][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1710.299660][   T10] 
[ 1710.301399][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1710.301654][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1710.301654][   T10]      dst_init+0x84/0x4a0
[ 1710.301654][   T10]      dst_alloc+0x97/0x150
[ 1710.301654][   T10]      ip6_dst_alloc+0x23/0x90
[ 1710.301654][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1710.301654][   T10]      ip6_pol_route+0x56f/0x840
[ 1710.301654][   T10]      fib6_rule_lookup+0x456/0x630
[ 1710.301654][   T10]      ip6_route_input+0x59c/0xa50
[ 1710.301654][   T10]      ipv6_rcv+0x397/0x810
[ 1710.301654][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1710.301654][   T10]      process_backlog+0x101/0x620
[ 1710.301654][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1710.301654][   T10]      net_rx_action+0x495/0xbe0
[ 1710.301654][   T10]      __do_softirq+0x1b5/0x7f6
[ 1710.301654][   T10] 
[ 1710.303341][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1710.303341][   T10]      netdev_get_by_index+0x5e/0x80
[ 1710.303341][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1710.303341][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1710.303341][   T10]      ip6_route_add+0x1c/0x140
[ 1710.303341][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1710.303341][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1710.303341][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1710.303341][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1710.303341][   T10]      netlink_rcv_skb+0x130/0x360
[ 1710.303341][   T10]      netlink_unicast+0x449/0x710
[ 1710.303341][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1710.303341][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1710.303341][   T10]      ___sys_sendmsg+0xee/0x170
[ 1710.303341][   T10]      __sys_sendmsg+0xcd/0x170
[ 1710.303341][   T10]      do_syscall_64+0xc6/0x1e0
[ 1710.303341][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1710.303341][   T10] 
[ 1710.305404][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1710.305404][   T10]      netdev_get_by_index+0x5e/0x80
[ 1710.305404][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1710.305404][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1710.305404][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1710.305404][   T10]      ipv6_add_addr+0x411/0x2000
[ 1710.305404][   T10]      inet6_addr_add+0x30e/0xa40
[ 1710.305404][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1710.305404][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1710.305404][   T10]      netlink_rcv_skb+0x130/0x360
[ 1710.305404][   T10]      netlink_unicast+0x449/0x710
[ 1710.305404][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1710.305404][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1710.305404][   T10]      ___sys_sendmsg+0xee/0x170
[ 1710.305404][   T10]      __sys_sendmsg+0xcd/0x170
[ 1710.305404][   T10]      do_syscall_64+0xc6/0x1e0
[ 1710.305404][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1710.305404][   T10] 
[ 1710.307451][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1710.307451][   T10]      netdev_get_by_index+0x5e/0x80
[ 1710.307451][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1710.307451][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1710.307451][   T10]      ip6_route_add+0x1c/0x140
[ 1710.307451][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1710.307451][   T10]      addrconf_add_dev+0xe2/0x170
[ 1710.307451][   T10]      inet6_addr_add+0x12f/0xa40
[ 1710.307451][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1710.307451][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1710.307451][   T10]      netlink_rcv_skb+0x130/0x360
[ 1710.307451][   T10]      netlink_unicast+0x449/0x710
[ 1710.307451][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1710.307451][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1710.307451][   T10]      ___sys_sendmsg+0xee/0x170
[ 1710.307451][   T10]      __sys_sendmsg+0xcd/0x170
[ 1710.307451][   T10]      do_syscall_64+0xc6/0x1e0
[ 1710.307451][   T10] 
[ 1710.309471][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1710.309471][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1710.309471][   T10]      ipv6_find_idev+0x102/0x170
[ 1710.309471][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1710.309471][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1710.309471][   T10]      netlink_rcv_skb+0x130/0x360
[ 1710.309471][   T10]      netlink_unicast+0x449/0x710
[ 1710.309471][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1710.309471][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1710.309471][   T10]      ___sys_sendmsg+0xee/0x170
[ 1710.309471][   T10]      __sys_sendmsg+0xcd/0x170
[ 1710.309471][   T10]      do_syscall_64+0xc6/0x1e0
[ 1710.309471][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1710.309471][   T10] 
[ 1710.311053][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1710.311053][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1710.311053][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1710.311053][   T10]      ipv6_find_idev+0x102/0x170
[ 1710.311053][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1710.311053][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1710.311053][   T10]      netlink_rcv_skb+0x130/0x360
[ 1710.311053][   T10]      netlink_unicast+0x449/0x710
[ 1710.311053][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1710.311053][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1710.311053][   T10]      ___sys_sendmsg+0xee/0x170
[ 1710.311053][   T10]      __sys_sendmsg+0xcd/0x170
[ 1710.311053][   T10]      do_syscall_64+0xc6/0x1e0
[ 1710.311053][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1710.311053][   T10] 
[ 1720.553782][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1720.554188][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1720.554188][   T10]      dst_init+0x84/0x4a0
[ 1720.554188][   T10]      dst_alloc+0x97/0x150
[ 1720.554188][   T10]      ip6_dst_alloc+0x23/0x90
[ 1720.554188][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1720.554188][   T10]      ip6_pol_route+0x56f/0x840
[ 1720.554188][   T10]      fib6_rule_lookup+0x456/0x630
[ 1720.554188][   T10]      ip6_route_input+0x59c/0xa50
[ 1720.554188][   T10]      ipv6_rcv+0x397/0x810
[ 1720.554188][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1720.554188][   T10]      process_backlog+0x101/0x620
[ 1720.554188][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1720.554188][   T10]      net_rx_action+0x495/0xbe0
[ 1720.554188][   T10]      __do_softirq+0x1b5/0x7f6
[ 1720.554188][   T10] 
[ 1720.555928][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1720.555928][   T10]      netdev_get_by_index+0x5e/0x80
[ 1720.555928][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1720.555928][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1720.555928][   T10]      ip6_route_add+0x1c/0x140
[ 1720.555928][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1720.555928][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1720.555928][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1720.555928][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1720.555928][   T10]      netlink_rcv_skb+0x130/0x360
[ 1720.555928][   T10]      netlink_unicast+0x449/0x710
[ 1720.555928][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1720.555928][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1720.555928][   T10]      ___sys_sendmsg+0xee/0x170
[ 1720.555928][   T10]      __sys_sendmsg+0xcd/0x170
[ 1720.555928][   T10]      do_syscall_64+0xc6/0x1e0
[ 1720.555928][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1720.555928][   T10] 
[ 1720.557983][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1720.557983][   T10]      netdev_get_by_index+0x5e/0x80
[ 1720.557983][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1720.557983][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1720.557983][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1720.557983][   T10]      ipv6_add_addr+0x411/0x2000
[ 1720.557983][   T10]      inet6_addr_add+0x30e/0xa40
[ 1720.557983][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1720.557983][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1720.557983][   T10]      netlink_rcv_skb+0x130/0x360
[ 1720.557983][   T10]      netlink_unicast+0x449/0x710
[ 1720.557983][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1720.557983][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1720.557983][   T10]      ___sys_sendmsg+0xee/0x170
[ 1720.557983][   T10]      __sys_sendmsg+0xcd/0x170
[ 1720.557983][   T10]      do_syscall_64+0xc6/0x1e0
[ 1720.557983][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1720.557983][   T10] 
[ 1720.560045][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1720.560045][   T10]      netdev_get_by_index+0x5e/0x80
[ 1720.560045][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1720.560045][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1720.560045][   T10]      ip6_route_add+0x1c/0x140
[ 1720.560045][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1720.560045][   T10]      addrconf_add_dev+0xe2/0x170
[ 1720.560045][   T10]      inet6_addr_add+0x12f/0xa40
[ 1720.560045][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1720.560045][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1720.560045][   T10]      netlink_rcv_skb+0x130/0x360
[ 1720.560045][   T10]      netlink_unicast+0x449/0x710
[ 1720.560045][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1720.560045][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1720.560045][   T10]      ___sys_sendmsg+0xee/0x170
[ 1720.560045][   T10]      __sys_sendmsg+0xcd/0x170
[ 1720.560045][   T10]      do_syscall_64+0xc6/0x1e0
[ 1720.560045][   T10] 
[ 1720.562066][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1720.562066][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1720.562066][   T10]      ipv6_find_idev+0x102/0x170
[ 1720.562066][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1720.562066][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1720.562066][   T10]      netlink_rcv_skb+0x130/0x360
[ 1720.562066][   T10]      netlink_unicast+0x449/0x710
[ 1720.562066][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1720.562066][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1720.562066][   T10]      ___sys_sendmsg+0xee/0x170
[ 1720.562066][   T10]      __sys_sendmsg+0xcd/0x170
[ 1720.562066][   T10]      do_syscall_64+0xc6/0x1e0
[ 1720.562066][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1720.562066][   T10] 
[ 1720.563654][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1720.563654][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1720.563654][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1720.563654][   T10]      ipv6_find_idev+0x102/0x170
[ 1720.563654][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1720.563654][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1720.563654][   T10]      netlink_rcv_skb+0x130/0x360
[ 1720.563654][   T10]      netlink_unicast+0x449/0x710
[ 1720.563654][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1720.563654][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1720.563654][   T10]      ___sys_sendmsg+0xee/0x170
[ 1720.563654][   T10]      __sys_sendmsg+0xcd/0x170
[ 1720.563654][   T10]      do_syscall_64+0xc6/0x1e0
[ 1720.563654][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1720.563654][   T10] 
[ 1720.565412][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1720.565658][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1720.565658][   T10]      dst_init+0x84/0x4a0
[ 1720.565658][   T10]      dst_alloc+0x97/0x150
[ 1720.565658][   T10]      ip6_dst_alloc+0x23/0x90
[ 1720.565658][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1720.565658][   T10]      ip6_pol_route+0x56f/0x840
[ 1720.565658][   T10]      fib6_rule_lookup+0x456/0x630
[ 1720.565658][   T10]      ip6_route_input+0x59c/0xa50
[ 1720.565658][   T10]      ipv6_rcv+0x397/0x810
[ 1720.565658][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1720.565658][   T10]      process_backlog+0x101/0x620
[ 1720.565658][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1720.565658][   T10]      net_rx_action+0x495/0xbe0
[ 1720.565658][   T10]      __do_softirq+0x1b5/0x7f6
[ 1720.565658][   T10] 
[ 1720.567343][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1720.567343][   T10]      netdev_get_by_index+0x5e/0x80
[ 1720.567343][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1720.567343][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1720.567343][   T10]      ip6_route_add+0x1c/0x140
[ 1720.567343][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1720.567343][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1720.567343][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1720.567343][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1720.567343][   T10]      netlink_rcv_skb+0x130/0x360
[ 1720.567343][   T10]      netlink_unicast+0x449/0x710
[ 1720.567343][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1720.567343][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1720.567343][   T10]      ___sys_sendmsg+0xee/0x170
[ 1720.567343][   T10]      __sys_sendmsg+0xcd/0x170
[ 1720.567343][   T10]      do_syscall_64+0xc6/0x1e0
[ 1720.567343][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1720.567343][   T10] 
[ 1720.569388][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1720.569388][   T10]      netdev_get_by_index+0x5e/0x80
[ 1720.569388][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1720.569388][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1720.569388][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1720.569388][   T10]      ipv6_add_addr+0x411/0x2000
[ 1720.569388][   T10]      inet6_addr_add+0x30e/0xa40
[ 1720.569388][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1720.569388][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1720.569388][   T10]      netlink_rcv_skb+0x130/0x360
[ 1720.569388][   T10]      netlink_unicast+0x449/0x710
[ 1720.569388][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1720.569388][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1720.569388][   T10]      ___sys_sendmsg+0xee/0x170
[ 1720.569388][   T10]      __sys_sendmsg+0xcd/0x170
[ 1720.569388][   T10]      do_syscall_64+0xc6/0x1e0
[ 1720.569388][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1720.569388][   T10] 
[ 1720.571967][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1720.571967][   T10]      netdev_get_by_index+0x5e/0x80
[ 1720.571967][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1720.571967][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1720.571967][   T10]      ip6_route_add+0x1c/0x140
[ 1720.571967][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1720.571967][   T10]      addrconf_add_dev+0xe2/0x170
[ 1720.571967][   T10]      inet6_addr_add+0x12f/0xa40
[ 1720.571967][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1720.571967][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1720.571967][   T10]      netlink_rcv_skb+0x130/0x360
[ 1720.571967][   T10]      netlink_unicast+0x449/0x710
[ 1720.571967][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1720.571967][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1720.571967][   T10]      ___sys_sendmsg+0xee/0x170
[ 1720.571967][   T10]      __sys_sendmsg+0xcd/0x170
[ 1720.571967][   T10]      do_syscall_64+0xc6/0x1e0
[ 1720.571967][   T10] 
[ 1720.573994][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1720.573994][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1720.573994][   T10]      ipv6_find_idev+0x102/0x170
[ 1720.573994][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1720.573994][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1720.573994][   T10]      netlink_rcv_skb+0x130/0x360
[ 1720.573994][   T10]      netlink_unicast+0x449/0x710
[ 1720.573994][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1720.573994][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1720.573994][   T10]      ___sys_sendmsg+0xee/0x170
[ 1720.573994][   T10]      __sys_sendmsg+0xcd/0x170
[ 1720.573994][   T10]      do_syscall_64+0xc6/0x1e0
[ 1720.573994][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1720.573994][   T10] 
[ 1720.575582][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1720.575582][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1720.575582][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1720.575582][   T10]      ipv6_find_idev+0x102/0x170
[ 1720.575582][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1720.575582][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1720.575582][   T10]      netlink_rcv_skb+0x130/0x360
[ 1720.575582][   T10]      netlink_unicast+0x449/0x710
[ 1720.575582][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1720.575582][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1720.575582][   T10]      ___sys_sendmsg+0xee/0x170
[ 1720.575582][   T10]      __sys_sendmsg+0xcd/0x170
[ 1720.575582][   T10]      do_syscall_64+0xc6/0x1e0
[ 1720.575582][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1720.575582][   T10] 
[ 1730.825768][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1730.826170][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1730.826170][   T10]      dst_init+0x84/0x4a0
[ 1730.826170][   T10]      dst_alloc+0x97/0x150
[ 1730.826170][   T10]      ip6_dst_alloc+0x23/0x90
[ 1730.826170][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1730.826170][   T10]      ip6_pol_route+0x56f/0x840
[ 1730.826170][   T10]      fib6_rule_lookup+0x456/0x630
[ 1730.826170][   T10]      ip6_route_input+0x59c/0xa50
[ 1730.826170][   T10]      ipv6_rcv+0x397/0x810
[ 1730.826170][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1730.826170][   T10]      process_backlog+0x101/0x620
[ 1730.826170][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1730.826170][   T10]      net_rx_action+0x495/0xbe0
[ 1730.826170][   T10]      __do_softirq+0x1b5/0x7f6
[ 1730.826170][   T10] 
[ 1730.827907][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1730.827907][   T10]      netdev_get_by_index+0x5e/0x80
[ 1730.827907][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1730.827907][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1730.827907][   T10]      ip6_route_add+0x1c/0x140
[ 1730.827907][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1730.827907][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1730.827907][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1730.827907][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1730.827907][   T10]      netlink_rcv_skb+0x130/0x360
[ 1730.827907][   T10]      netlink_unicast+0x449/0x710
[ 1730.827907][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1730.827907][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1730.827907][   T10]      ___sys_sendmsg+0xee/0x170
[ 1730.827907][   T10]      __sys_sendmsg+0xcd/0x170
[ 1730.827907][   T10]      do_syscall_64+0xc6/0x1e0
[ 1730.827907][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1730.827907][   T10] 
[ 1730.829965][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1730.829965][   T10]      netdev_get_by_index+0x5e/0x80
[ 1730.829965][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1730.829965][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1730.829965][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1730.829965][   T10]      ipv6_add_addr+0x411/0x2000
[ 1730.829965][   T10]      inet6_addr_add+0x30e/0xa40
[ 1730.829965][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1730.829965][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1730.829965][   T10]      netlink_rcv_skb+0x130/0x360
[ 1730.829965][   T10]      netlink_unicast+0x449/0x710
[ 1730.829965][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1730.829965][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1730.829965][   T10]      ___sys_sendmsg+0xee/0x170
[ 1730.829965][   T10]      __sys_sendmsg+0xcd/0x170
[ 1730.829965][   T10]      do_syscall_64+0xc6/0x1e0
[ 1730.829965][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1730.829965][   T10] 
[ 1730.832014][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1730.832014][   T10]      netdev_get_by_index+0x5e/0x80
[ 1730.832014][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1730.832014][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1730.832014][   T10]      ip6_route_add+0x1c/0x140
[ 1730.832014][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1730.832014][   T10]      addrconf_add_dev+0xe2/0x170
[ 1730.832014][   T10]      inet6_addr_add+0x12f/0xa40
[ 1730.832014][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1730.832014][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1730.832014][   T10]      netlink_rcv_skb+0x130/0x360
[ 1730.832014][   T10]      netlink_unicast+0x449/0x710
[ 1730.832014][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1730.832014][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1730.832014][   T10]      ___sys_sendmsg+0xee/0x170
[ 1730.832014][   T10]      __sys_sendmsg+0xcd/0x170
[ 1730.832014][   T10]      do_syscall_64+0xc6/0x1e0
[ 1730.832014][   T10] 
[ 1730.834046][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1730.834046][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1730.834046][   T10]      ipv6_find_idev+0x102/0x170
[ 1730.834046][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1730.834046][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1730.834046][   T10]      netlink_rcv_skb+0x130/0x360
[ 1730.834046][   T10]      netlink_unicast+0x449/0x710
[ 1730.834046][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1730.834046][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1730.834046][   T10]      ___sys_sendmsg+0xee/0x170
[ 1730.834046][   T10]      __sys_sendmsg+0xcd/0x170
[ 1730.834046][   T10]      do_syscall_64+0xc6/0x1e0
[ 1730.834046][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1730.834046][   T10] 
[ 1730.835629][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1730.835629][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1730.835629][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1730.835629][   T10]      ipv6_find_idev+0x102/0x170
[ 1730.835629][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1730.835629][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1730.835629][   T10]      netlink_rcv_skb+0x130/0x360
[ 1730.835629][   T10]      netlink_unicast+0x449/0x710
[ 1730.835629][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1730.835629][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1730.835629][   T10]      ___sys_sendmsg+0xee/0x170
[ 1730.835629][   T10]      __sys_sendmsg+0xcd/0x170
[ 1730.835629][   T10]      do_syscall_64+0xc6/0x1e0
[ 1730.835629][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1730.835629][   T10] 
[ 1730.837371][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1730.837619][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1730.837619][   T10]      dst_init+0x84/0x4a0
[ 1730.837619][   T10]      dst_alloc+0x97/0x150
[ 1730.837619][   T10]      ip6_dst_alloc+0x23/0x90
[ 1730.837619][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1730.837619][   T10]      ip6_pol_route+0x56f/0x840
[ 1730.837619][   T10]      fib6_rule_lookup+0x456/0x630
[ 1730.837619][   T10]      ip6_route_input+0x59c/0xa50
[ 1730.837619][   T10]      ipv6_rcv+0x397/0x810
[ 1730.837619][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1730.837619][   T10]      process_backlog+0x101/0x620
[ 1730.837619][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1730.837619][   T10]      net_rx_action+0x495/0xbe0
[ 1730.837619][   T10]      __do_softirq+0x1b5/0x7f6
[ 1730.837619][   T10] 
[ 1730.839693][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1730.839693][   T10]      netdev_get_by_index+0x5e/0x80
[ 1730.839693][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1730.839693][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1730.839693][   T10]      ip6_route_add+0x1c/0x140
[ 1730.839693][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1730.839693][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1730.839693][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1730.839693][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1730.839693][   T10]      netlink_rcv_skb+0x130/0x360
[ 1730.839693][   T10]      netlink_unicast+0x449/0x710
[ 1730.839693][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1730.839693][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1730.839693][   T10]      ___sys_sendmsg+0xee/0x170
[ 1730.839693][   T10]      __sys_sendmsg+0xcd/0x170
[ 1730.839693][   T10]      do_syscall_64+0xc6/0x1e0
[ 1730.839693][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1730.839693][   T10] 
[ 1730.841747][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1730.841747][   T10]      netdev_get_by_index+0x5e/0x80
[ 1730.841747][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1730.841747][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1730.841747][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1730.841747][   T10]      ipv6_add_addr+0x411/0x2000
[ 1730.841747][   T10]      inet6_addr_add+0x30e/0xa40
[ 1730.841747][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1730.841747][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1730.841747][   T10]      netlink_rcv_skb+0x130/0x360
[ 1730.841747][   T10]      netlink_unicast+0x449/0x710
[ 1730.841747][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1730.841747][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1730.841747][   T10]      ___sys_sendmsg+0xee/0x170
[ 1730.841747][   T10]      __sys_sendmsg+0xcd/0x170
[ 1730.841747][   T10]      do_syscall_64+0xc6/0x1e0
[ 1730.841747][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1730.841747][   T10] 
[ 1730.843793][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1730.843793][   T10]      netdev_get_by_index+0x5e/0x80
[ 1730.843793][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1730.843793][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1730.843793][   T10]      ip6_route_add+0x1c/0x140
[ 1730.843793][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1730.843793][   T10]      addrconf_add_dev+0xe2/0x170
[ 1730.843793][   T10]      inet6_addr_add+0x12f/0xa40
[ 1730.843793][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1730.843793][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1730.843793][   T10]      netlink_rcv_skb+0x130/0x360
[ 1730.843793][   T10]      netlink_unicast+0x449/0x710
[ 1730.843793][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1730.843793][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1730.843793][   T10]      ___sys_sendmsg+0xee/0x170
[ 1730.843793][   T10]      __sys_sendmsg+0xcd/0x170
[ 1730.843793][   T10]      do_syscall_64+0xc6/0x1e0
[ 1730.843793][   T10] 
[ 1730.845818][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1730.845818][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1730.845818][   T10]      ipv6_find_idev+0x102/0x170
[ 1730.845818][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1730.845818][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1730.845818][   T10]      netlink_rcv_skb+0x130/0x360
[ 1730.845818][   T10]      netlink_unicast+0x449/0x710
[ 1730.845818][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1730.845818][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1730.845818][   T10]      ___sys_sendmsg+0xee/0x170
[ 1730.845818][   T10]      __sys_sendmsg+0xcd/0x170
[ 1730.845818][   T10]      do_syscall_64+0xc6/0x1e0
[ 1730.845818][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1730.845818][   T10] 
[ 1730.847394][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1730.847394][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1730.847394][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1730.847394][   T10]      ipv6_find_idev+0x102/0x170
[ 1730.847394][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1730.847394][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1730.847394][   T10]      netlink_rcv_skb+0x130/0x360
[ 1730.847394][   T10]      netlink_unicast+0x449/0x710
[ 1730.847394][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1730.847394][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1730.847394][   T10]      ___sys_sendmsg+0xee/0x170
[ 1730.847394][   T10]      __sys_sendmsg+0xcd/0x170
[ 1730.847394][   T10]      do_syscall_64+0xc6/0x1e0
[ 1730.847394][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1730.847394][   T10] 
[ 1741.089821][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1741.090244][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1741.090244][   T10]      dst_init+0x84/0x4a0
[ 1741.090244][   T10]      dst_alloc+0x97/0x150
[ 1741.090244][   T10]      ip6_dst_alloc+0x23/0x90
[ 1741.090244][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1741.090244][   T10]      ip6_pol_route+0x56f/0x840
[ 1741.090244][   T10]      fib6_rule_lookup+0x456/0x630
[ 1741.090244][   T10]      ip6_route_input+0x59c/0xa50
[ 1741.090244][   T10]      ipv6_rcv+0x397/0x810
[ 1741.090244][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1741.090244][   T10]      process_backlog+0x101/0x620
[ 1741.090244][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1741.090244][   T10]      net_rx_action+0x495/0xbe0
[ 1741.090244][   T10]      __do_softirq+0x1b5/0x7f6
[ 1741.090244][   T10] 
[ 1741.091965][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1741.091965][   T10]      netdev_get_by_index+0x5e/0x80
[ 1741.091965][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1741.091965][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1741.091965][   T10]      ip6_route_add+0x1c/0x140
[ 1741.091965][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1741.091965][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1741.091965][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1741.091965][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1741.091965][   T10]      netlink_rcv_skb+0x130/0x360
[ 1741.091965][   T10]      netlink_unicast+0x449/0x710
[ 1741.091965][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1741.091965][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1741.091965][   T10]      ___sys_sendmsg+0xee/0x170
[ 1741.091965][   T10]      __sys_sendmsg+0xcd/0x170
[ 1741.091965][   T10]      do_syscall_64+0xc6/0x1e0
[ 1741.091965][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1741.091965][   T10] 
[ 1741.094049][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1741.094049][   T10]      netdev_get_by_index+0x5e/0x80
[ 1741.094049][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1741.094049][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1741.094049][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1741.094049][   T10]      ipv6_add_addr+0x411/0x2000
[ 1741.094049][   T10]      inet6_addr_add+0x30e/0xa40
[ 1741.094049][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1741.094049][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1741.094049][   T10]      netlink_rcv_skb+0x130/0x360
[ 1741.094049][   T10]      netlink_unicast+0x449/0x710
[ 1741.094049][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1741.094049][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1741.094049][   T10]      ___sys_sendmsg+0xee/0x170
[ 1741.094049][   T10]      __sys_sendmsg+0xcd/0x170
[ 1741.094049][   T10]      do_syscall_64+0xc6/0x1e0
[ 1741.094049][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1741.094049][   T10] 
[ 1741.096504][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1741.096504][   T10]      netdev_get_by_index+0x5e/0x80
[ 1741.096504][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1741.096504][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1741.096504][   T10]      ip6_route_add+0x1c/0x140
[ 1741.096504][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1741.096504][   T10]      addrconf_add_dev+0xe2/0x170
[ 1741.096504][   T10]      inet6_addr_add+0x12f/0xa40
[ 1741.096504][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1741.096504][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1741.096504][   T10]      netlink_rcv_skb+0x130/0x360
[ 1741.096504][   T10]      netlink_unicast+0x449/0x710
[ 1741.096504][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1741.096504][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1741.096504][   T10]      ___sys_sendmsg+0xee/0x170
[ 1741.096504][   T10]      __sys_sendmsg+0xcd/0x170
[ 1741.096504][   T10]      do_syscall_64+0xc6/0x1e0
[ 1741.096504][   T10] 
[ 1741.098525][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1741.098525][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1741.098525][   T10]      ipv6_find_idev+0x102/0x170
[ 1741.098525][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1741.098525][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1741.098525][   T10]      netlink_rcv_skb+0x130/0x360
[ 1741.098525][   T10]      netlink_unicast+0x449/0x710
[ 1741.098525][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1741.098525][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1741.098525][   T10]      ___sys_sendmsg+0xee/0x170
[ 1741.098525][   T10]      __sys_sendmsg+0xcd/0x170
[ 1741.098525][   T10]      do_syscall_64+0xc6/0x1e0
[ 1741.098525][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1741.098525][   T10] 
[ 1741.100110][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1741.100110][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1741.100110][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1741.100110][   T10]      ipv6_find_idev+0x102/0x170
[ 1741.100110][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1741.100110][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1741.100110][   T10]      netlink_rcv_skb+0x130/0x360
[ 1741.100110][   T10]      netlink_unicast+0x449/0x710
[ 1741.100110][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1741.100110][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1741.100110][   T10]      ___sys_sendmsg+0xee/0x170
[ 1741.100110][   T10]      __sys_sendmsg+0xcd/0x170
[ 1741.100110][   T10]      do_syscall_64+0xc6/0x1e0
[ 1741.100110][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1741.100110][   T10] 
[ 1741.101862][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1741.102113][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1741.102113][   T10]      dst_init+0x84/0x4a0
[ 1741.102113][   T10]      dst_alloc+0x97/0x150
[ 1741.102113][   T10]      ip6_dst_alloc+0x23/0x90
[ 1741.102113][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1741.102113][   T10]      ip6_pol_route+0x56f/0x840
[ 1741.102113][   T10]      fib6_rule_lookup+0x456/0x630
[ 1741.102113][   T10]      ip6_route_input+0x59c/0xa50
[ 1741.102113][   T10]      ipv6_rcv+0x397/0x810
[ 1741.102113][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1741.102113][   T10]      process_backlog+0x101/0x620
[ 1741.102113][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1741.102113][   T10]      net_rx_action+0x495/0xbe0
[ 1741.102113][   T10]      __do_softirq+0x1b5/0x7f6
[ 1741.102113][   T10] 
[ 1741.103798][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1741.103798][   T10]      netdev_get_by_index+0x5e/0x80
[ 1741.103798][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1741.103798][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1741.103798][   T10]      ip6_route_add+0x1c/0x140
[ 1741.103798][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1741.103798][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1741.103798][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1741.103798][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1741.103798][   T10]      netlink_rcv_skb+0x130/0x360
[ 1741.103798][   T10]      netlink_unicast+0x449/0x710
[ 1741.103798][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1741.103798][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1741.103798][   T10]      ___sys_sendmsg+0xee/0x170
[ 1741.103798][   T10]      __sys_sendmsg+0xcd/0x170
[ 1741.103798][   T10]      do_syscall_64+0xc6/0x1e0
[ 1741.103798][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1741.103798][   T10] 
[ 1741.105857][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1741.105857][   T10]      netdev_get_by_index+0x5e/0x80
[ 1741.105857][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1741.105857][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1741.105857][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1741.105857][   T10]      ipv6_add_addr+0x411/0x2000
[ 1741.105857][   T10]      inet6_addr_add+0x30e/0xa40
[ 1741.105857][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1741.105857][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1741.105857][   T10]      netlink_rcv_skb+0x130/0x360
[ 1741.105857][   T10]      netlink_unicast+0x449/0x710
[ 1741.105857][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1741.105857][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1741.105857][   T10]      ___sys_sendmsg+0xee/0x170
[ 1741.105857][   T10]      __sys_sendmsg+0xcd/0x170
[ 1741.105857][   T10]      do_syscall_64+0xc6/0x1e0
[ 1741.105857][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1741.105857][   T10] 
[ 1741.107910][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1741.107910][   T10]      netdev_get_by_index+0x5e/0x80
[ 1741.107910][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1741.107910][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1741.107910][   T10]      ip6_route_add+0x1c/0x140
[ 1741.107910][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1741.107910][   T10]      addrconf_add_dev+0xe2/0x170
[ 1741.107910][   T10]      inet6_addr_add+0x12f/0xa40
[ 1741.107910][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1741.107910][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1741.107910][   T10]      netlink_rcv_skb+0x130/0x360
[ 1741.107910][   T10]      netlink_unicast+0x449/0x710
[ 1741.107910][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1741.107910][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1741.107910][   T10]      ___sys_sendmsg+0xee/0x170
[ 1741.107910][   T10]      __sys_sendmsg+0xcd/0x170
[ 1741.107910][   T10]      do_syscall_64+0xc6/0x1e0
[ 1741.107910][   T10] 
[ 1741.109925][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1741.109925][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1741.109925][   T10]      ipv6_find_idev+0x102/0x170
[ 1741.109925][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1741.109925][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1741.109925][   T10]      netlink_rcv_skb+0x130/0x360
[ 1741.109925][   T10]      netlink_unicast+0x449/0x710
[ 1741.109925][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1741.109925][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1741.109925][   T10]      ___sys_sendmsg+0xee/0x170
[ 1741.109925][   T10]      __sys_sendmsg+0xcd/0x170
[ 1741.109925][   T10]      do_syscall_64+0xc6/0x1e0
[ 1741.109925][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1741.109925][   T10] 
[ 1741.111503][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1741.111503][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1741.111503][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1741.111503][   T10]      ipv6_find_idev+0x102/0x170
[ 1741.111503][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1741.111503][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1741.111503][   T10]      netlink_rcv_skb+0x130/0x360
[ 1741.111503][   T10]      netlink_unicast+0x449/0x710
[ 1741.111503][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1741.111503][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1741.111503][   T10]      ___sys_sendmsg+0xee/0x170
[ 1741.111503][   T10]      __sys_sendmsg+0xcd/0x170
[ 1741.111503][   T10]      do_syscall_64+0xc6/0x1e0
[ 1741.111503][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1741.111503][   T10] 
[ 1751.353733][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1751.354159][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1751.354159][   T10]      dst_init+0x84/0x4a0
[ 1751.354159][   T10]      dst_alloc+0x97/0x150
[ 1751.354159][   T10]      ip6_dst_alloc+0x23/0x90
[ 1751.354159][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1751.354159][   T10]      ip6_pol_route+0x56f/0x840
[ 1751.354159][   T10]      fib6_rule_lookup+0x456/0x630
[ 1751.354159][   T10]      ip6_route_input+0x59c/0xa50
[ 1751.354159][   T10]      ipv6_rcv+0x397/0x810
[ 1751.354159][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1751.354159][   T10]      process_backlog+0x101/0x620
[ 1751.354159][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1751.354159][   T10]      net_rx_action+0x495/0xbe0
[ 1751.354159][   T10]      __do_softirq+0x1b5/0x7f6
[ 1751.354159][   T10] 
[ 1751.355938][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1751.355938][   T10]      netdev_get_by_index+0x5e/0x80
[ 1751.355938][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1751.355938][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1751.355938][   T10]      ip6_route_add+0x1c/0x140
[ 1751.355938][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1751.355938][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1751.355938][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1751.355938][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1751.355938][   T10]      netlink_rcv_skb+0x130/0x360
[ 1751.355938][   T10]      netlink_unicast+0x449/0x710
[ 1751.355938][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1751.355938][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1751.355938][   T10]      ___sys_sendmsg+0xee/0x170
[ 1751.355938][   T10]      __sys_sendmsg+0xcd/0x170
[ 1751.355938][   T10]      do_syscall_64+0xc6/0x1e0
[ 1751.355938][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1751.355938][   T10] 
[ 1751.357949][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1751.357949][   T10]      netdev_get_by_index+0x5e/0x80
[ 1751.357949][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1751.357949][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1751.357949][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1751.357949][   T10]      ipv6_add_addr+0x411/0x2000
[ 1751.357949][   T10]      inet6_addr_add+0x30e/0xa40
[ 1751.357949][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1751.357949][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1751.357949][   T10]      netlink_rcv_skb+0x130/0x360
[ 1751.357949][   T10]      netlink_unicast+0x449/0x710
[ 1751.357949][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1751.357949][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1751.357949][   T10]      ___sys_sendmsg+0xee/0x170
[ 1751.357949][   T10]      __sys_sendmsg+0xcd/0x170
[ 1751.357949][   T10]      do_syscall_64+0xc6/0x1e0
[ 1751.357949][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1751.357949][   T10] 
[ 1751.359965][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1751.359965][   T10]      netdev_get_by_index+0x5e/0x80
[ 1751.359965][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1751.359965][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1751.359965][   T10]      ip6_route_add+0x1c/0x140
[ 1751.359965][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1751.359965][   T10]      addrconf_add_dev+0xe2/0x170
[ 1751.359965][   T10]      inet6_addr_add+0x12f/0xa40
[ 1751.359965][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1751.359965][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1751.359965][   T10]      netlink_rcv_skb+0x130/0x360
[ 1751.359965][   T10]      netlink_unicast+0x449/0x710
[ 1751.359965][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1751.359965][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1751.359965][   T10]      ___sys_sendmsg+0xee/0x170
[ 1751.359965][   T10]      __sys_sendmsg+0xcd/0x170
[ 1751.359965][   T10]      do_syscall_64+0xc6/0x1e0
[ 1751.359965][   T10] 
[ 1751.361954][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1751.361954][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1751.361954][   T10]      ipv6_find_idev+0x102/0x170
[ 1751.361954][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1751.361954][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1751.361954][   T10]      netlink_rcv_skb+0x130/0x360
[ 1751.361954][   T10]      netlink_unicast+0x449/0x710
[ 1751.361954][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1751.361954][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1751.361954][   T10]      ___sys_sendmsg+0xee/0x170
[ 1751.361954][   T10]      __sys_sendmsg+0xcd/0x170
[ 1751.361954][   T10]      do_syscall_64+0xc6/0x1e0
[ 1751.361954][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1751.361954][   T10] 
[ 1751.363500][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1751.363500][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1751.363500][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1751.363500][   T10]      ipv6_find_idev+0x102/0x170
[ 1751.363500][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1751.363500][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1751.363500][   T10]      netlink_rcv_skb+0x130/0x360
[ 1751.363500][   T10]      netlink_unicast+0x449/0x710
[ 1751.363500][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1751.363500][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1751.363500][   T10]      ___sys_sendmsg+0xee/0x170
[ 1751.363500][   T10]      __sys_sendmsg+0xcd/0x170
[ 1751.363500][   T10]      do_syscall_64+0xc6/0x1e0
[ 1751.363500][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1751.363500][   T10] 
[ 1751.365206][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1751.365450][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1751.365450][   T10]      dst_init+0x84/0x4a0
[ 1751.365450][   T10]      dst_alloc+0x97/0x150
[ 1751.365450][   T10]      ip6_dst_alloc+0x23/0x90
[ 1751.365450][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1751.365450][   T10]      ip6_pol_route+0x56f/0x840
[ 1751.365450][   T10]      fib6_rule_lookup+0x456/0x630
[ 1751.365450][   T10]      ip6_route_input+0x59c/0xa50
[ 1751.365450][   T10]      ipv6_rcv+0x397/0x810
[ 1751.365450][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1751.365450][   T10]      process_backlog+0x101/0x620
[ 1751.365450][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1751.365450][   T10]      net_rx_action+0x495/0xbe0
[ 1751.365450][   T10]      __do_softirq+0x1b5/0x7f6
[ 1751.365450][   T10] 
[ 1751.367095][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1751.367095][   T10]      netdev_get_by_index+0x5e/0x80
[ 1751.367095][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1751.367095][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1751.367095][   T10]      ip6_route_add+0x1c/0x140
[ 1751.367095][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1751.367095][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1751.367095][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1751.367095][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1751.367095][   T10]      netlink_rcv_skb+0x130/0x360
[ 1751.367095][   T10]      netlink_unicast+0x449/0x710
[ 1751.367095][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1751.367095][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1751.367095][   T10]      ___sys_sendmsg+0xee/0x170
[ 1751.367095][   T10]      __sys_sendmsg+0xcd/0x170
[ 1751.367095][   T10]      do_syscall_64+0xc6/0x1e0
[ 1751.367095][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1751.367095][   T10] 
[ 1751.369097][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1751.369097][   T10]      netdev_get_by_index+0x5e/0x80
[ 1751.369097][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1751.369097][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1751.369097][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1751.369097][   T10]      ipv6_add_addr+0x411/0x2000
[ 1751.369097][   T10]      inet6_addr_add+0x30e/0xa40
[ 1751.369097][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1751.369097][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1751.369097][   T10]      netlink_rcv_skb+0x130/0x360
[ 1751.369097][   T10]      netlink_unicast+0x449/0x710
[ 1751.369097][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1751.369097][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1751.369097][   T10]      ___sys_sendmsg+0xee/0x170
[ 1751.369097][   T10]      __sys_sendmsg+0xcd/0x170
[ 1751.369097][   T10]      do_syscall_64+0xc6/0x1e0
[ 1751.369097][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1751.369097][   T10] 
[ 1751.371095][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1751.371095][   T10]      netdev_get_by_index+0x5e/0x80
[ 1751.371095][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1751.371095][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1751.371095][   T10]      ip6_route_add+0x1c/0x140
[ 1751.371095][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1751.371095][   T10]      addrconf_add_dev+0xe2/0x170
[ 1751.371095][   T10]      inet6_addr_add+0x12f/0xa40
[ 1751.371095][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1751.371095][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1751.371095][   T10]      netlink_rcv_skb+0x130/0x360
[ 1751.371095][   T10]      netlink_unicast+0x449/0x710
[ 1751.371095][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1751.371095][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1751.371095][   T10]      ___sys_sendmsg+0xee/0x170
[ 1751.371095][   T10]      __sys_sendmsg+0xcd/0x170
[ 1751.371095][   T10]      do_syscall_64+0xc6/0x1e0
[ 1751.371095][   T10] 
[ 1751.373059][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1751.373059][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1751.373059][   T10]      ipv6_find_idev+0x102/0x170
[ 1751.373059][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1751.373059][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1751.373059][   T10]      netlink_rcv_skb+0x130/0x360
[ 1751.373059][   T10]      netlink_unicast+0x449/0x710
[ 1751.373059][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1751.373059][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1751.373059][   T10]      ___sys_sendmsg+0xee/0x170
[ 1751.373059][   T10]      __sys_sendmsg+0xcd/0x170
[ 1751.373059][   T10]      do_syscall_64+0xc6/0x1e0
[ 1751.373059][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1751.373059][   T10] 
[ 1751.374599][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1751.374599][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1751.374599][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1751.374599][   T10]      ipv6_find_idev+0x102/0x170
[ 1751.374599][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1751.374599][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1751.374599][   T10]      netlink_rcv_skb+0x130/0x360
[ 1751.374599][   T10]      netlink_unicast+0x449/0x710
[ 1751.374599][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1751.374599][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1751.374599][   T10]      ___sys_sendmsg+0xee/0x170
[ 1751.374599][   T10]      __sys_sendmsg+0xcd/0x170
[ 1751.374599][   T10]      do_syscall_64+0xc6/0x1e0
[ 1751.374599][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1751.374599][   T10] 
[ 1761.617787][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1761.618244][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1761.618244][   T10]      dst_init+0x84/0x4a0
[ 1761.618244][   T10]      dst_alloc+0x97/0x150
[ 1761.618244][   T10]      ip6_dst_alloc+0x23/0x90
[ 1761.618244][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1761.618244][   T10]      ip6_pol_route+0x56f/0x840
[ 1761.618244][   T10]      fib6_rule_lookup+0x456/0x630
[ 1761.618244][   T10]      ip6_route_input+0x59c/0xa50
[ 1761.618244][   T10]      ipv6_rcv+0x397/0x810
[ 1761.618244][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1761.618244][   T10]      process_backlog+0x101/0x620
[ 1761.618244][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1761.618244][   T10]      net_rx_action+0x495/0xbe0
[ 1761.618244][   T10]      __do_softirq+0x1b5/0x7f6
[ 1761.618244][   T10] 
[ 1761.619938][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1761.619938][   T10]      netdev_get_by_index+0x5e/0x80
[ 1761.619938][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1761.619938][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1761.619938][   T10]      ip6_route_add+0x1c/0x140
[ 1761.619938][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1761.619938][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1761.619938][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1761.619938][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1761.619938][   T10]      netlink_rcv_skb+0x130/0x360
[ 1761.619938][   T10]      netlink_unicast+0x449/0x710
[ 1761.619938][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1761.619938][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1761.619938][   T10]      ___sys_sendmsg+0xee/0x170
[ 1761.619938][   T10]      __sys_sendmsg+0xcd/0x170
[ 1761.619938][   T10]      do_syscall_64+0xc6/0x1e0
[ 1761.619938][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1761.619938][   T10] 
[ 1761.621940][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1761.621940][   T10]      netdev_get_by_index+0x5e/0x80
[ 1761.621940][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1761.621940][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1761.621940][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1761.621940][   T10]      ipv6_add_addr+0x411/0x2000
[ 1761.621940][   T10]      inet6_addr_add+0x30e/0xa40
[ 1761.621940][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1761.621940][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1761.621940][   T10]      netlink_rcv_skb+0x130/0x360
[ 1761.621940][   T10]      netlink_unicast+0x449/0x710
[ 1761.621940][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1761.621940][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1761.621940][   T10]      ___sys_sendmsg+0xee/0x170
[ 1761.621940][   T10]      __sys_sendmsg+0xcd/0x170
[ 1761.621940][   T10]      do_syscall_64+0xc6/0x1e0
[ 1761.621940][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1761.621940][   T10] 
[ 1761.623952][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1761.623952][   T10]      netdev_get_by_index+0x5e/0x80
[ 1761.623952][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1761.623952][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1761.623952][   T10]      ip6_route_add+0x1c/0x140
[ 1761.623952][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1761.623952][   T10]      addrconf_add_dev+0xe2/0x170
[ 1761.623952][   T10]      inet6_addr_add+0x12f/0xa40
[ 1761.623952][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1761.623952][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1761.623952][   T10]      netlink_rcv_skb+0x130/0x360
[ 1761.623952][   T10]      netlink_unicast+0x449/0x710
[ 1761.623952][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1761.623952][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1761.623952][   T10]      ___sys_sendmsg+0xee/0x170
[ 1761.623952][   T10]      __sys_sendmsg+0xcd/0x170
[ 1761.623952][   T10]      do_syscall_64+0xc6/0x1e0
[ 1761.623952][   T10] 
[ 1761.625933][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1761.625933][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1761.625933][   T10]      ipv6_find_idev+0x102/0x170
[ 1761.625933][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1761.625933][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1761.625933][   T10]      netlink_rcv_skb+0x130/0x360
[ 1761.625933][   T10]      netlink_unicast+0x449/0x710
[ 1761.625933][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1761.625933][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1761.625933][   T10]      ___sys_sendmsg+0xee/0x170
[ 1761.625933][   T10]      __sys_sendmsg+0xcd/0x170
[ 1761.625933][   T10]      do_syscall_64+0xc6/0x1e0
[ 1761.625933][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1761.625933][   T10] 
[ 1761.627475][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1761.627475][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1761.627475][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1761.627475][   T10]      ipv6_find_idev+0x102/0x170
[ 1761.627475][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1761.627475][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1761.627475][   T10]      netlink_rcv_skb+0x130/0x360
[ 1761.627475][   T10]      netlink_unicast+0x449/0x710
[ 1761.627475][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1761.627475][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1761.627475][   T10]      ___sys_sendmsg+0xee/0x170
[ 1761.627475][   T10]      __sys_sendmsg+0xcd/0x170
[ 1761.627475][   T10]      do_syscall_64+0xc6/0x1e0
[ 1761.627475][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1761.627475][   T10] 
[ 1761.629171][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1761.629417][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1761.629417][   T10]      dst_init+0x84/0x4a0
[ 1761.629417][   T10]      dst_alloc+0x97/0x150
[ 1761.629417][   T10]      ip6_dst_alloc+0x23/0x90
[ 1761.629417][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1761.629417][   T10]      ip6_pol_route+0x56f/0x840
[ 1761.629417][   T10]      fib6_rule_lookup+0x456/0x630
[ 1761.629417][   T10]      ip6_route_input+0x59c/0xa50
[ 1761.629417][   T10]      ipv6_rcv+0x397/0x810
[ 1761.629417][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1761.629417][   T10]      process_backlog+0x101/0x620
[ 1761.629417][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1761.629417][   T10]      net_rx_action+0x495/0xbe0
[ 1761.629417][   T10]      __do_softirq+0x1b5/0x7f6
[ 1761.629417][   T10] 
[ 1761.631058][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1761.631058][   T10]      netdev_get_by_index+0x5e/0x80
[ 1761.631058][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1761.631058][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1761.631058][   T10]      ip6_route_add+0x1c/0x140
[ 1761.631058][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1761.631058][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1761.631058][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1761.631058][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1761.631058][   T10]      netlink_rcv_skb+0x130/0x360
[ 1761.631058][   T10]      netlink_unicast+0x449/0x710
[ 1761.631058][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1761.631058][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1761.631058][   T10]      ___sys_sendmsg+0xee/0x170
[ 1761.631058][   T10]      __sys_sendmsg+0xcd/0x170
[ 1761.631058][   T10]      do_syscall_64+0xc6/0x1e0
[ 1761.631058][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1761.631058][   T10] 
[ 1761.633055][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1761.633055][   T10]      netdev_get_by_index+0x5e/0x80
[ 1761.633055][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1761.633055][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1761.633055][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1761.633055][   T10]      ipv6_add_addr+0x411/0x2000
[ 1761.633055][   T10]      inet6_addr_add+0x30e/0xa40
[ 1761.633055][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1761.633055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1761.633055][   T10]      netlink_rcv_skb+0x130/0x360
[ 1761.633055][   T10]      netlink_unicast+0x449/0x710
[ 1761.633055][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1761.633055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1761.633055][   T10]      ___sys_sendmsg+0xee/0x170
[ 1761.633055][   T10]      __sys_sendmsg+0xcd/0x170
[ 1761.633055][   T10]      do_syscall_64+0xc6/0x1e0
[ 1761.633055][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1761.633055][   T10] 
[ 1761.635059][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1761.635059][   T10]      netdev_get_by_index+0x5e/0x80
[ 1761.635059][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1761.635059][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1761.635059][   T10]      ip6_route_add+0x1c/0x140
[ 1761.635059][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1761.635059][   T10]      addrconf_add_dev+0xe2/0x170
[ 1761.635059][   T10]      inet6_addr_add+0x12f/0xa40
[ 1761.635059][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1761.635059][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1761.635059][   T10]      netlink_rcv_skb+0x130/0x360
[ 1761.635059][   T10]      netlink_unicast+0x449/0x710
[ 1761.635059][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1761.635059][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1761.635059][   T10]      ___sys_sendmsg+0xee/0x170
[ 1761.635059][   T10]      __sys_sendmsg+0xcd/0x170
[ 1761.635059][   T10]      do_syscall_64+0xc6/0x1e0
[ 1761.635059][   T10] 
[ 1761.637018][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1761.637018][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1761.637018][   T10]      ipv6_find_idev+0x102/0x170
[ 1761.637018][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1761.637018][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1761.637018][   T10]      netlink_rcv_skb+0x130/0x360
[ 1761.637018][   T10]      netlink_unicast+0x449/0x710
[ 1761.637018][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1761.637018][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1761.637018][   T10]      ___sys_sendmsg+0xee/0x170
[ 1761.637018][   T10]      __sys_sendmsg+0xcd/0x170
[ 1761.637018][   T10]      do_syscall_64+0xc6/0x1e0
[ 1761.637018][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1761.637018][   T10] 
[ 1761.638555][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1761.638555][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1761.638555][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1761.638555][   T10]      ipv6_find_idev+0x102/0x170
[ 1761.638555][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1761.638555][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1761.638555][   T10]      netlink_rcv_skb+0x130/0x360
[ 1761.638555][   T10]      netlink_unicast+0x449/0x710
[ 1761.638555][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1761.638555][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1761.638555][   T10]      ___sys_sendmsg+0xee/0x170
[ 1761.638555][   T10]      __sys_sendmsg+0xcd/0x170
[ 1761.638555][   T10]      do_syscall_64+0xc6/0x1e0
[ 1761.638555][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1761.638555][   T10] 
[ 1771.881781][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1771.882238][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1771.882238][   T10]      dst_init+0x84/0x4a0
[ 1771.882238][   T10]      dst_alloc+0x97/0x150
[ 1771.882238][   T10]      ip6_dst_alloc+0x23/0x90
[ 1771.882238][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1771.882238][   T10]      ip6_pol_route+0x56f/0x840
[ 1771.882238][   T10]      fib6_rule_lookup+0x456/0x630
[ 1771.882238][   T10]      ip6_route_input+0x59c/0xa50
[ 1771.882238][   T10]      ipv6_rcv+0x397/0x810
[ 1771.882238][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1771.882238][   T10]      process_backlog+0x101/0x620
[ 1771.882238][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1771.882238][   T10]      net_rx_action+0x495/0xbe0
[ 1771.882238][   T10]      __do_softirq+0x1b5/0x7f6
[ 1771.882238][   T10] 
[ 1771.883942][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1771.883942][   T10]      netdev_get_by_index+0x5e/0x80
[ 1771.883942][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1771.883942][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1771.883942][   T10]      ip6_route_add+0x1c/0x140
[ 1771.883942][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1771.883942][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1771.883942][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1771.883942][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1771.883942][   T10]      netlink_rcv_skb+0x130/0x360
[ 1771.883942][   T10]      netlink_unicast+0x449/0x710
[ 1771.883942][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1771.883942][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1771.883942][   T10]      ___sys_sendmsg+0xee/0x170
[ 1771.883942][   T10]      __sys_sendmsg+0xcd/0x170
[ 1771.883942][   T10]      do_syscall_64+0xc6/0x1e0
[ 1771.883942][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1771.883942][   T10] 
[ 1771.885956][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1771.885956][   T10]      netdev_get_by_index+0x5e/0x80
[ 1771.885956][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1771.885956][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1771.885956][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1771.885956][   T10]      ipv6_add_addr+0x411/0x2000
[ 1771.885956][   T10]      inet6_addr_add+0x30e/0xa40
[ 1771.885956][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1771.885956][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1771.885956][   T10]      netlink_rcv_skb+0x130/0x360
[ 1771.885956][   T10]      netlink_unicast+0x449/0x710
[ 1771.885956][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1771.885956][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1771.885956][   T10]      ___sys_sendmsg+0xee/0x170
[ 1771.885956][   T10]      __sys_sendmsg+0xcd/0x170
[ 1771.885956][   T10]      do_syscall_64+0xc6/0x1e0
[ 1771.885956][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1771.885956][   T10] 
[ 1771.887964][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1771.887964][   T10]      netdev_get_by_index+0x5e/0x80
[ 1771.887964][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1771.887964][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1771.887964][   T10]      ip6_route_add+0x1c/0x140
[ 1771.887964][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1771.887964][   T10]      addrconf_add_dev+0xe2/0x170
[ 1771.887964][   T10]      inet6_addr_add+0x12f/0xa40
[ 1771.887964][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1771.887964][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1771.887964][   T10]      netlink_rcv_skb+0x130/0x360
[ 1771.887964][   T10]      netlink_unicast+0x449/0x710
[ 1771.887964][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1771.887964][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1771.887964][   T10]      ___sys_sendmsg+0xee/0x170
[ 1771.887964][   T10]      __sys_sendmsg+0xcd/0x170
[ 1771.887964][   T10]      do_syscall_64+0xc6/0x1e0
[ 1771.887964][   T10] 
[ 1771.889932][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1771.889932][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1771.889932][   T10]      ipv6_find_idev+0x102/0x170
[ 1771.889932][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1771.889932][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1771.889932][   T10]      netlink_rcv_skb+0x130/0x360
[ 1771.889932][   T10]      netlink_unicast+0x449/0x710
[ 1771.889932][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1771.889932][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1771.889932][   T10]      ___sys_sendmsg+0xee/0x170
[ 1771.889932][   T10]      __sys_sendmsg+0xcd/0x170
[ 1771.889932][   T10]      do_syscall_64+0xc6/0x1e0
[ 1771.889932][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1771.889932][   T10] 
[ 1771.891508][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1771.891508][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1771.891508][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1771.891508][   T10]      ipv6_find_idev+0x102/0x170
[ 1771.891508][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1771.891508][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1771.891508][   T10]      netlink_rcv_skb+0x130/0x360
[ 1771.891508][   T10]      netlink_unicast+0x449/0x710
[ 1771.891508][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1771.891508][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1771.891508][   T10]      ___sys_sendmsg+0xee/0x170
[ 1771.891508][   T10]      __sys_sendmsg+0xcd/0x170
[ 1771.891508][   T10]      do_syscall_64+0xc6/0x1e0
[ 1771.891508][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1771.891508][   T10] 
[ 1771.893207][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1771.893456][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1771.893456][   T10]      dst_init+0x84/0x4a0
[ 1771.893456][   T10]      dst_alloc+0x97/0x150
[ 1771.893456][   T10]      ip6_dst_alloc+0x23/0x90
[ 1771.893456][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1771.893456][   T10]      ip6_pol_route+0x56f/0x840
[ 1771.893456][   T10]      fib6_rule_lookup+0x456/0x630
[ 1771.893456][   T10]      ip6_route_input+0x59c/0xa50
[ 1771.893456][   T10]      ipv6_rcv+0x397/0x810
[ 1771.893456][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1771.893456][   T10]      process_backlog+0x101/0x620
[ 1771.893456][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1771.893456][   T10]      net_rx_action+0x495/0xbe0
[ 1771.893456][   T10]      __do_softirq+0x1b5/0x7f6
[ 1771.893456][   T10] 
[ 1771.895098][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1771.895098][   T10]      netdev_get_by_index+0x5e/0x80
[ 1771.895098][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1771.895098][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1771.895098][   T10]      ip6_route_add+0x1c/0x140
[ 1771.895098][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1771.895098][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1771.895098][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1771.895098][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1771.895098][   T10]      netlink_rcv_skb+0x130/0x360
[ 1771.895098][   T10]      netlink_unicast+0x449/0x710
[ 1771.895098][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1771.895098][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1771.895098][   T10]      ___sys_sendmsg+0xee/0x170
[ 1771.895098][   T10]      __sys_sendmsg+0xcd/0x170
[ 1771.895098][   T10]      do_syscall_64+0xc6/0x1e0
[ 1771.895098][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1771.895098][   T10] 
[ 1771.897106][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1771.897106][   T10]      netdev_get_by_index+0x5e/0x80
[ 1771.897106][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1771.897106][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1771.897106][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1771.897106][   T10]      ipv6_add_addr+0x411/0x2000
[ 1771.897106][   T10]      inet6_addr_add+0x30e/0xa40
[ 1771.897106][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1771.897106][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1771.897106][   T10]      netlink_rcv_skb+0x130/0x360
[ 1771.897106][   T10]      netlink_unicast+0x449/0x710
[ 1771.897106][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1771.897106][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1771.897106][   T10]      ___sys_sendmsg+0xee/0x170
[ 1771.897106][   T10]      __sys_sendmsg+0xcd/0x170
[ 1771.897106][   T10]      do_syscall_64+0xc6/0x1e0
[ 1771.897106][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1771.897106][   T10] 
[ 1771.899101][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1771.899101][   T10]      netdev_get_by_index+0x5e/0x80
[ 1771.899101][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1771.899101][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1771.899101][   T10]      ip6_route_add+0x1c/0x140
[ 1771.899101][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1771.899101][   T10]      addrconf_add_dev+0xe2/0x170
[ 1771.899101][   T10]      inet6_addr_add+0x12f/0xa40
[ 1771.899101][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1771.899101][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1771.899101][   T10]      netlink_rcv_skb+0x130/0x360
[ 1771.899101][   T10]      netlink_unicast+0x449/0x710
[ 1771.899101][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1771.899101][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1771.899101][   T10]      ___sys_sendmsg+0xee/0x170
[ 1771.899101][   T10]      __sys_sendmsg+0xcd/0x170
[ 1771.899101][   T10]      do_syscall_64+0xc6/0x1e0
[ 1771.899101][   T10] 
[ 1771.901061][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1771.901061][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1771.901061][   T10]      ipv6_find_idev+0x102/0x170
[ 1771.901061][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1771.901061][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1771.901061][   T10]      netlink_rcv_skb+0x130/0x360
[ 1771.901061][   T10]      netlink_unicast+0x449/0x710
[ 1771.901061][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1771.901061][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1771.901061][   T10]      ___sys_sendmsg+0xee/0x170
[ 1771.901061][   T10]      __sys_sendmsg+0xcd/0x170
[ 1771.901061][   T10]      do_syscall_64+0xc6/0x1e0
[ 1771.901061][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1771.901061][   T10] 
[ 1771.902624][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1771.902624][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1771.902624][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1771.902624][   T10]      ipv6_find_idev+0x102/0x170
[ 1771.902624][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1771.902624][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1771.902624][   T10]      netlink_rcv_skb+0x130/0x360
[ 1771.902624][   T10]      netlink_unicast+0x449/0x710
[ 1771.902624][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1771.902624][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1771.902624][   T10]      ___sys_sendmsg+0xee/0x170
[ 1771.902624][   T10]      __sys_sendmsg+0xcd/0x170
[ 1771.902624][   T10]      do_syscall_64+0xc6/0x1e0
[ 1771.902624][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1771.902624][   T10] 
[ 1782.145778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1782.146249][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1782.146249][   T10]      dst_init+0x84/0x4a0
[ 1782.146249][   T10]      dst_alloc+0x97/0x150
[ 1782.146249][   T10]      ip6_dst_alloc+0x23/0x90
[ 1782.146249][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1782.146249][   T10]      ip6_pol_route+0x56f/0x840
[ 1782.146249][   T10]      fib6_rule_lookup+0x456/0x630
[ 1782.146249][   T10]      ip6_route_input+0x59c/0xa50
[ 1782.146249][   T10]      ipv6_rcv+0x397/0x810
[ 1782.146249][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1782.146249][   T10]      process_backlog+0x101/0x620
[ 1782.146249][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1782.146249][   T10]      net_rx_action+0x495/0xbe0
[ 1782.146249][   T10]      __do_softirq+0x1b5/0x7f6
[ 1782.146249][   T10] 
[ 1782.147931][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1782.147931][   T10]      netdev_get_by_index+0x5e/0x80
[ 1782.147931][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1782.147931][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1782.147931][   T10]      ip6_route_add+0x1c/0x140
[ 1782.147931][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1782.147931][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1782.147931][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1782.147931][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1782.147931][   T10]      netlink_rcv_skb+0x130/0x360
[ 1782.147931][   T10]      netlink_unicast+0x449/0x710
[ 1782.147931][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1782.147931][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1782.147931][   T10]      ___sys_sendmsg+0xee/0x170
[ 1782.147931][   T10]      __sys_sendmsg+0xcd/0x170
[ 1782.147931][   T10]      do_syscall_64+0xc6/0x1e0
[ 1782.147931][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1782.147931][   T10] 
[ 1782.149938][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1782.149938][   T10]      netdev_get_by_index+0x5e/0x80
[ 1782.149938][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1782.149938][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1782.149938][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1782.149938][   T10]      ipv6_add_addr+0x411/0x2000
[ 1782.149938][   T10]      inet6_addr_add+0x30e/0xa40
[ 1782.149938][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1782.149938][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1782.149938][   T10]      netlink_rcv_skb+0x130/0x360
[ 1782.149938][   T10]      netlink_unicast+0x449/0x710
[ 1782.149938][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1782.149938][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1782.149938][   T10]      ___sys_sendmsg+0xee/0x170
[ 1782.149938][   T10]      __sys_sendmsg+0xcd/0x170
[ 1782.149938][   T10]      do_syscall_64+0xc6/0x1e0
[ 1782.149938][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1782.149938][   T10] 
[ 1782.151990][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1782.151990][   T10]      netdev_get_by_index+0x5e/0x80
[ 1782.151990][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1782.151990][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1782.151990][   T10]      ip6_route_add+0x1c/0x140
[ 1782.151990][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1782.151990][   T10]      addrconf_add_dev+0xe2/0x170
[ 1782.151990][   T10]      inet6_addr_add+0x12f/0xa40
[ 1782.151990][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1782.151990][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1782.151990][   T10]      netlink_rcv_skb+0x130/0x360
[ 1782.151990][   T10]      netlink_unicast+0x449/0x710
[ 1782.151990][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1782.151990][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1782.151990][   T10]      ___sys_sendmsg+0xee/0x170
[ 1782.151990][   T10]      __sys_sendmsg+0xcd/0x170
[ 1782.151990][   T10]      do_syscall_64+0xc6/0x1e0
[ 1782.151990][   T10] 
[ 1782.153968][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1782.153968][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1782.153968][   T10]      ipv6_find_idev+0x102/0x170
[ 1782.153968][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1782.153968][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1782.153968][   T10]      netlink_rcv_skb+0x130/0x360
[ 1782.153968][   T10]      netlink_unicast+0x449/0x710
[ 1782.153968][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1782.153968][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1782.153968][   T10]      ___sys_sendmsg+0xee/0x170
[ 1782.153968][   T10]      __sys_sendmsg+0xcd/0x170
[ 1782.153968][   T10]      do_syscall_64+0xc6/0x1e0
[ 1782.153968][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1782.153968][   T10] 
[ 1782.155515][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1782.155515][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1782.155515][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1782.155515][   T10]      ipv6_find_idev+0x102/0x170
[ 1782.155515][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1782.155515][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1782.155515][   T10]      netlink_rcv_skb+0x130/0x360
[ 1782.155515][   T10]      netlink_unicast+0x449/0x710
[ 1782.155515][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1782.155515][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1782.155515][   T10]      ___sys_sendmsg+0xee/0x170
[ 1782.155515][   T10]      __sys_sendmsg+0xcd/0x170
[ 1782.155515][   T10]      do_syscall_64+0xc6/0x1e0
[ 1782.155515][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1782.155515][   T10] 
[ 1782.157226][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1782.157474][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1782.157474][   T10]      dst_init+0x84/0x4a0
[ 1782.157474][   T10]      dst_alloc+0x97/0x150
[ 1782.157474][   T10]      ip6_dst_alloc+0x23/0x90
[ 1782.157474][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1782.157474][   T10]      ip6_pol_route+0x56f/0x840
[ 1782.157474][   T10]      fib6_rule_lookup+0x456/0x630
[ 1782.157474][   T10]      ip6_route_input+0x59c/0xa50
[ 1782.157474][   T10]      ipv6_rcv+0x397/0x810
[ 1782.157474][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1782.157474][   T10]      process_backlog+0x101/0x620
[ 1782.157474][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1782.157474][   T10]      net_rx_action+0x495/0xbe0
[ 1782.157474][   T10]      __do_softirq+0x1b5/0x7f6
[ 1782.157474][   T10] 
[ 1782.159122][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1782.159122][   T10]      netdev_get_by_index+0x5e/0x80
[ 1782.159122][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1782.159122][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1782.159122][   T10]      ip6_route_add+0x1c/0x140
[ 1782.159122][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1782.159122][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1782.159122][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1782.159122][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1782.159122][   T10]      netlink_rcv_skb+0x130/0x360
[ 1782.159122][   T10]      netlink_unicast+0x449/0x710
[ 1782.159122][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1782.159122][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1782.159122][   T10]      ___sys_sendmsg+0xee/0x170
[ 1782.159122][   T10]      __sys_sendmsg+0xcd/0x170
[ 1782.159122][   T10]      do_syscall_64+0xc6/0x1e0
[ 1782.159122][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1782.159122][   T10] 
[ 1782.161121][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1782.161121][   T10]      netdev_get_by_index+0x5e/0x80
[ 1782.161121][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1782.161121][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1782.161121][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1782.161121][   T10]      ipv6_add_addr+0x411/0x2000
[ 1782.161121][   T10]      inet6_addr_add+0x30e/0xa40
[ 1782.161121][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1782.161121][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1782.161121][   T10]      netlink_rcv_skb+0x130/0x360
[ 1782.161121][   T10]      netlink_unicast+0x449/0x710
[ 1782.161121][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1782.161121][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1782.161121][   T10]      ___sys_sendmsg+0xee/0x170
[ 1782.161121][   T10]      __sys_sendmsg+0xcd/0x170
[ 1782.161121][   T10]      do_syscall_64+0xc6/0x1e0
[ 1782.161121][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1782.161121][   T10] 
[ 1782.163116][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1782.163116][   T10]      netdev_get_by_index+0x5e/0x80
[ 1782.163116][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1782.163116][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1782.163116][   T10]      ip6_route_add+0x1c/0x140
[ 1782.163116][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1782.163116][   T10]      addrconf_add_dev+0xe2/0x170
[ 1782.163116][   T10]      inet6_addr_add+0x12f/0xa40
[ 1782.163116][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1782.163116][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1782.163116][   T10]      netlink_rcv_skb+0x130/0x360
[ 1782.163116][   T10]      netlink_unicast+0x449/0x710
[ 1782.163116][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1782.163116][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1782.163116][   T10]      ___sys_sendmsg+0xee/0x170
[ 1782.163116][   T10]      __sys_sendmsg+0xcd/0x170
[ 1782.163116][   T10]      do_syscall_64+0xc6/0x1e0
[ 1782.163116][   T10] 
[ 1782.165081][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1782.165081][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1782.165081][   T10]      ipv6_find_idev+0x102/0x170
[ 1782.165081][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1782.165081][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1782.165081][   T10]      netlink_rcv_skb+0x130/0x360
[ 1782.165081][   T10]      netlink_unicast+0x449/0x710
[ 1782.165081][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1782.165081][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1782.165081][   T10]      ___sys_sendmsg+0xee/0x170
[ 1782.165081][   T10]      __sys_sendmsg+0xcd/0x170
[ 1782.165081][   T10]      do_syscall_64+0xc6/0x1e0
[ 1782.165081][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1782.165081][   T10] 
[ 1782.166633][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1782.166633][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1782.166633][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1782.166633][   T10]      ipv6_find_idev+0x102/0x170
[ 1782.166633][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1782.166633][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1782.166633][   T10]      netlink_rcv_skb+0x130/0x360
[ 1782.166633][   T10]      netlink_unicast+0x449/0x710
[ 1782.166633][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1782.166633][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1782.166633][   T10]      ___sys_sendmsg+0xee/0x170
[ 1782.166633][   T10]      __sys_sendmsg+0xcd/0x170
[ 1782.166633][   T10]      do_syscall_64+0xc6/0x1e0
[ 1782.166633][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1782.166633][   T10] 
[ 1792.409798][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1792.410262][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1792.410262][   T10]      dst_init+0x84/0x4a0
[ 1792.410262][   T10]      dst_alloc+0x97/0x150
[ 1792.410262][   T10]      ip6_dst_alloc+0x23/0x90
[ 1792.410262][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1792.410262][   T10]      ip6_pol_route+0x56f/0x840
[ 1792.410262][   T10]      fib6_rule_lookup+0x456/0x630
[ 1792.410262][   T10]      ip6_route_input+0x59c/0xa50
[ 1792.410262][   T10]      ipv6_rcv+0x397/0x810
[ 1792.410262][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1792.410262][   T10]      process_backlog+0x101/0x620
[ 1792.410262][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1792.410262][   T10]      net_rx_action+0x495/0xbe0
[ 1792.410262][   T10]      __do_softirq+0x1b5/0x7f6
[ 1792.410262][   T10] 
[ 1792.411956][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1792.411956][   T10]      netdev_get_by_index+0x5e/0x80
[ 1792.411956][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1792.411956][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1792.411956][   T10]      ip6_route_add+0x1c/0x140
[ 1792.411956][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1792.411956][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1792.411956][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1792.411956][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1792.411956][   T10]      netlink_rcv_skb+0x130/0x360
[ 1792.411956][   T10]      netlink_unicast+0x449/0x710
[ 1792.411956][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1792.411956][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1792.411956][   T10]      ___sys_sendmsg+0xee/0x170
[ 1792.411956][   T10]      __sys_sendmsg+0xcd/0x170
[ 1792.411956][   T10]      do_syscall_64+0xc6/0x1e0
[ 1792.411956][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1792.411956][   T10] 
[ 1792.413990][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1792.413990][   T10]      netdev_get_by_index+0x5e/0x80
[ 1792.413990][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1792.413990][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1792.413990][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1792.413990][   T10]      ipv6_add_addr+0x411/0x2000
[ 1792.413990][   T10]      inet6_addr_add+0x30e/0xa40
[ 1792.413990][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1792.413990][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1792.413990][   T10]      netlink_rcv_skb+0x130/0x360
[ 1792.413990][   T10]      netlink_unicast+0x449/0x710
[ 1792.413990][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1792.413990][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1792.413990][   T10]      ___sys_sendmsg+0xee/0x170
[ 1792.413990][   T10]      __sys_sendmsg+0xcd/0x170
[ 1792.413990][   T10]      do_syscall_64+0xc6/0x1e0
[ 1792.413990][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1792.413990][   T10] 
[ 1792.415996][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1792.415996][   T10]      netdev_get_by_index+0x5e/0x80
[ 1792.415996][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1792.415996][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1792.415996][   T10]      ip6_route_add+0x1c/0x140
[ 1792.415996][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1792.415996][   T10]      addrconf_add_dev+0xe2/0x170
[ 1792.415996][   T10]      inet6_addr_add+0x12f/0xa40
[ 1792.415996][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1792.415996][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1792.415996][   T10]      netlink_rcv_skb+0x130/0x360
[ 1792.415996][   T10]      netlink_unicast+0x449/0x710
[ 1792.415996][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1792.415996][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1792.415996][   T10]      ___sys_sendmsg+0xee/0x170
[ 1792.415996][   T10]      __sys_sendmsg+0xcd/0x170
[ 1792.415996][   T10]      do_syscall_64+0xc6/0x1e0
[ 1792.415996][   T10] 
[ 1792.417956][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1792.417956][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1792.417956][   T10]      ipv6_find_idev+0x102/0x170
[ 1792.417956][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1792.417956][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1792.417956][   T10]      netlink_rcv_skb+0x130/0x360
[ 1792.417956][   T10]      netlink_unicast+0x449/0x710
[ 1792.417956][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1792.417956][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1792.417956][   T10]      ___sys_sendmsg+0xee/0x170
[ 1792.417956][   T10]      __sys_sendmsg+0xcd/0x170
[ 1792.417956][   T10]      do_syscall_64+0xc6/0x1e0
[ 1792.417956][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1792.417956][   T10] 
[ 1792.419491][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1792.419491][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1792.419491][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1792.419491][   T10]      ipv6_find_idev+0x102/0x170
[ 1792.419491][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1792.419491][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1792.419491][   T10]      netlink_rcv_skb+0x130/0x360
[ 1792.419491][   T10]      netlink_unicast+0x449/0x710
[ 1792.419491][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1792.419491][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1792.419491][   T10]      ___sys_sendmsg+0xee/0x170
[ 1792.419491][   T10]      __sys_sendmsg+0xcd/0x170
[ 1792.419491][   T10]      do_syscall_64+0xc6/0x1e0
[ 1792.419491][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1792.419491][   T10] 
[ 1792.421183][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1792.421428][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1792.421428][   T10]      dst_init+0x84/0x4a0
[ 1792.421428][   T10]      dst_alloc+0x97/0x150
[ 1792.421428][   T10]      ip6_dst_alloc+0x23/0x90
[ 1792.421428][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1792.421428][   T10]      ip6_pol_route+0x56f/0x840
[ 1792.421428][   T10]      fib6_rule_lookup+0x456/0x630
[ 1792.421428][   T10]      ip6_route_input+0x59c/0xa50
[ 1792.421428][   T10]      ipv6_rcv+0x397/0x810
[ 1792.421428][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1792.421428][   T10]      process_backlog+0x101/0x620
[ 1792.421428][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1792.421428][   T10]      net_rx_action+0x495/0xbe0
[ 1792.421428][   T10]      __do_softirq+0x1b5/0x7f6
[ 1792.421428][   T10] 
[ 1792.423085][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1792.423085][   T10]      netdev_get_by_index+0x5e/0x80
[ 1792.423085][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1792.423085][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1792.423085][   T10]      ip6_route_add+0x1c/0x140
[ 1792.423085][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1792.423085][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1792.423085][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1792.423085][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1792.423085][   T10]      netlink_rcv_skb+0x130/0x360
[ 1792.423085][   T10]      netlink_unicast+0x449/0x710
[ 1792.423085][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1792.423085][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1792.423085][   T10]      ___sys_sendmsg+0xee/0x170
[ 1792.423085][   T10]      __sys_sendmsg+0xcd/0x170
[ 1792.423085][   T10]      do_syscall_64+0xc6/0x1e0
[ 1792.423085][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1792.423085][   T10] 
[ 1792.425091][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1792.425091][   T10]      netdev_get_by_index+0x5e/0x80
[ 1792.425091][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1792.425091][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1792.425091][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1792.425091][   T10]      ipv6_add_addr+0x411/0x2000
[ 1792.425091][   T10]      inet6_addr_add+0x30e/0xa40
[ 1792.425091][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1792.425091][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1792.425091][   T10]      netlink_rcv_skb+0x130/0x360
[ 1792.425091][   T10]      netlink_unicast+0x449/0x710
[ 1792.425091][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1792.425091][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1792.425091][   T10]      ___sys_sendmsg+0xee/0x170
[ 1792.425091][   T10]      __sys_sendmsg+0xcd/0x170
[ 1792.425091][   T10]      do_syscall_64+0xc6/0x1e0
[ 1792.425091][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1792.425091][   T10] 
[ 1792.427096][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1792.427096][   T10]      netdev_get_by_index+0x5e/0x80
[ 1792.427096][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1792.427096][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1792.427096][   T10]      ip6_route_add+0x1c/0x140
[ 1792.427096][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1792.427096][   T10]      addrconf_add_dev+0xe2/0x170
[ 1792.427096][   T10]      inet6_addr_add+0x12f/0xa40
[ 1792.427096][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1792.427096][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1792.427096][   T10]      netlink_rcv_skb+0x130/0x360
[ 1792.427096][   T10]      netlink_unicast+0x449/0x710
[ 1792.427096][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1792.427096][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1792.427096][   T10]      ___sys_sendmsg+0xee/0x170
[ 1792.427096][   T10]      __sys_sendmsg+0xcd/0x170
[ 1792.427096][   T10]      do_syscall_64+0xc6/0x1e0
[ 1792.427096][   T10] 
[ 1792.429056][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1792.429056][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1792.429056][   T10]      ipv6_find_idev+0x102/0x170
[ 1792.429056][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1792.429056][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1792.429056][   T10]      netlink_rcv_skb+0x130/0x360
[ 1792.429056][   T10]      netlink_unicast+0x449/0x710
[ 1792.429056][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1792.429056][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1792.429056][   T10]      ___sys_sendmsg+0xee/0x170
[ 1792.429056][   T10]      __sys_sendmsg+0xcd/0x170
[ 1792.429056][   T10]      do_syscall_64+0xc6/0x1e0
[ 1792.429056][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1792.429056][   T10] 
[ 1792.430586][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1792.430586][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1792.430586][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1792.430586][   T10]      ipv6_find_idev+0x102/0x170
[ 1792.430586][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1792.430586][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1792.430586][   T10]      netlink_rcv_skb+0x130/0x360
[ 1792.430586][   T10]      netlink_unicast+0x449/0x710
[ 1792.430586][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1792.430586][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1792.430586][   T10]      ___sys_sendmsg+0xee/0x170
[ 1792.430586][   T10]      __sys_sendmsg+0xcd/0x170
[ 1792.430586][   T10]      do_syscall_64+0xc6/0x1e0
[ 1792.430586][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1792.430586][   T10] 
[ 1802.673795][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1802.674253][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1802.674253][   T10]      dst_init+0x84/0x4a0
[ 1802.674253][   T10]      dst_alloc+0x97/0x150
[ 1802.674253][   T10]      ip6_dst_alloc+0x23/0x90
[ 1802.674253][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1802.674253][   T10]      ip6_pol_route+0x56f/0x840
[ 1802.674253][   T10]      fib6_rule_lookup+0x456/0x630
[ 1802.674253][   T10]      ip6_route_input+0x59c/0xa50
[ 1802.674253][   T10]      ipv6_rcv+0x397/0x810
[ 1802.674253][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1802.674253][   T10]      process_backlog+0x101/0x620
[ 1802.674253][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1802.674253][   T10]      net_rx_action+0x495/0xbe0
[ 1802.674253][   T10]      __do_softirq+0x1b5/0x7f6
[ 1802.674253][   T10] 
[ 1802.675940][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1802.675940][   T10]      netdev_get_by_index+0x5e/0x80
[ 1802.675940][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1802.675940][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1802.675940][   T10]      ip6_route_add+0x1c/0x140
[ 1802.675940][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1802.675940][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1802.675940][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1802.675940][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1802.675940][   T10]      netlink_rcv_skb+0x130/0x360
[ 1802.675940][   T10]      netlink_unicast+0x449/0x710
[ 1802.675940][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1802.675940][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1802.675940][   T10]      ___sys_sendmsg+0xee/0x170
[ 1802.675940][   T10]      __sys_sendmsg+0xcd/0x170
[ 1802.675940][   T10]      do_syscall_64+0xc6/0x1e0
[ 1802.675940][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1802.675940][   T10] 
[ 1802.677952][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1802.677952][   T10]      netdev_get_by_index+0x5e/0x80
[ 1802.677952][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1802.677952][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1802.677952][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1802.677952][   T10]      ipv6_add_addr+0x411/0x2000
[ 1802.677952][   T10]      inet6_addr_add+0x30e/0xa40
[ 1802.677952][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1802.677952][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1802.677952][   T10]      netlink_rcv_skb+0x130/0x360
[ 1802.677952][   T10]      netlink_unicast+0x449/0x710
[ 1802.677952][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1802.677952][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1802.677952][   T10]      ___sys_sendmsg+0xee/0x170
[ 1802.677952][   T10]      __sys_sendmsg+0xcd/0x170
[ 1802.677952][   T10]      do_syscall_64+0xc6/0x1e0
[ 1802.677952][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1802.677952][   T10] 
[ 1802.679962][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1802.679962][   T10]      netdev_get_by_index+0x5e/0x80
[ 1802.679962][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1802.679962][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1802.679962][   T10]      ip6_route_add+0x1c/0x140
[ 1802.679962][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1802.679962][   T10]      addrconf_add_dev+0xe2/0x170
[ 1802.679962][   T10]      inet6_addr_add+0x12f/0xa40
[ 1802.679962][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1802.679962][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1802.679962][   T10]      netlink_rcv_skb+0x130/0x360
[ 1802.679962][   T10]      netlink_unicast+0x449/0x710
[ 1802.679962][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1802.679962][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1802.679962][   T10]      ___sys_sendmsg+0xee/0x170
[ 1802.679962][   T10]      __sys_sendmsg+0xcd/0x170
[ 1802.679962][   T10]      do_syscall_64+0xc6/0x1e0
[ 1802.679962][   T10] 
[ 1802.681931][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1802.681931][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1802.681931][   T10]      ipv6_find_idev+0x102/0x170
[ 1802.681931][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1802.681931][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1802.681931][   T10]      netlink_rcv_skb+0x130/0x360
[ 1802.681931][   T10]      netlink_unicast+0x449/0x710
[ 1802.681931][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1802.681931][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1802.681931][   T10]      ___sys_sendmsg+0xee/0x170
[ 1802.681931][   T10]      __sys_sendmsg+0xcd/0x170
[ 1802.681931][   T10]      do_syscall_64+0xc6/0x1e0
[ 1802.681931][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1802.681931][   T10] 
[ 1802.683479][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1802.683479][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1802.683479][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1802.683479][   T10]      ipv6_find_idev+0x102/0x170
[ 1802.683479][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1802.683479][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1802.683479][   T10]      netlink_rcv_skb+0x130/0x360
[ 1802.683479][   T10]      netlink_unicast+0x449/0x710
[ 1802.683479][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1802.683479][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1802.683479][   T10]      ___sys_sendmsg+0xee/0x170
[ 1802.683479][   T10]      __sys_sendmsg+0xcd/0x170
[ 1802.683479][   T10]      do_syscall_64+0xc6/0x1e0
[ 1802.683479][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1802.683479][   T10] 
[ 1802.685190][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1802.685434][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1802.685434][   T10]      dst_init+0x84/0x4a0
[ 1802.685434][   T10]      dst_alloc+0x97/0x150
[ 1802.685434][   T10]      ip6_dst_alloc+0x23/0x90
[ 1802.685434][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1802.685434][   T10]      ip6_pol_route+0x56f/0x840
[ 1802.685434][   T10]      fib6_rule_lookup+0x456/0x630
[ 1802.685434][   T10]      ip6_route_input+0x59c/0xa50
[ 1802.685434][   T10]      ipv6_rcv+0x397/0x810
[ 1802.685434][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1802.685434][   T10]      process_backlog+0x101/0x620
[ 1802.685434][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1802.685434][   T10]      net_rx_action+0x495/0xbe0
[ 1802.685434][   T10]      __do_softirq+0x1b5/0x7f6
[ 1802.685434][   T10] 
[ 1802.687082][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1802.687082][   T10]      netdev_get_by_index+0x5e/0x80
[ 1802.687082][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1802.687082][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1802.687082][   T10]      ip6_route_add+0x1c/0x140
[ 1802.687082][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1802.687082][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1802.687082][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1802.687082][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1802.687082][   T10]      netlink_rcv_skb+0x130/0x360
[ 1802.687082][   T10]      netlink_unicast+0x449/0x710
[ 1802.687082][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1802.687082][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1802.687082][   T10]      ___sys_sendmsg+0xee/0x170
[ 1802.687082][   T10]      __sys_sendmsg+0xcd/0x170
[ 1802.687082][   T10]      do_syscall_64+0xc6/0x1e0
[ 1802.687082][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1802.687082][   T10] 
[ 1802.689112][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1802.689112][   T10]      netdev_get_by_index+0x5e/0x80
[ 1802.689112][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1802.689112][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1802.689112][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1802.689112][   T10]      ipv6_add_addr+0x411/0x2000
[ 1802.689112][   T10]      inet6_addr_add+0x30e/0xa40
[ 1802.689112][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1802.689112][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1802.689112][   T10]      netlink_rcv_skb+0x130/0x360
[ 1802.689112][   T10]      netlink_unicast+0x449/0x710
[ 1802.689112][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1802.689112][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1802.689112][   T10]      ___sys_sendmsg+0xee/0x170
[ 1802.689112][   T10]      __sys_sendmsg+0xcd/0x170
[ 1802.689112][   T10]      do_syscall_64+0xc6/0x1e0
[ 1802.689112][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1802.689112][   T10] 
[ 1802.691117][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1802.691117][   T10]      netdev_get_by_index+0x5e/0x80
[ 1802.691117][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1802.691117][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1802.691117][   T10]      ip6_route_add+0x1c/0x140
[ 1802.691117][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1802.691117][   T10]      addrconf_add_dev+0xe2/0x170
[ 1802.691117][   T10]      inet6_addr_add+0x12f/0xa40
[ 1802.691117][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1802.691117][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1802.691117][   T10]      netlink_rcv_skb+0x130/0x360
[ 1802.691117][   T10]      netlink_unicast+0x449/0x710
[ 1802.691117][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1802.691117][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1802.691117][   T10]      ___sys_sendmsg+0xee/0x170
[ 1802.691117][   T10]      __sys_sendmsg+0xcd/0x170
[ 1802.691117][   T10]      do_syscall_64+0xc6/0x1e0
[ 1802.691117][   T10] 
[ 1802.693082][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1802.693082][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1802.693082][   T10]      ipv6_find_idev+0x102/0x170
[ 1802.693082][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1802.693082][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1802.693082][   T10]      netlink_rcv_skb+0x130/0x360
[ 1802.693082][   T10]      netlink_unicast+0x449/0x710
[ 1802.693082][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1802.693082][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1802.693082][   T10]      ___sys_sendmsg+0xee/0x170
[ 1802.693082][   T10]      __sys_sendmsg+0xcd/0x170
[ 1802.693082][   T10]      do_syscall_64+0xc6/0x1e0
[ 1802.693082][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1802.693082][   T10] 
[ 1802.694637][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1802.694637][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1802.694637][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1802.694637][   T10]      ipv6_find_idev+0x102/0x170
[ 1802.694637][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1802.694637][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1802.694637][   T10]      netlink_rcv_skb+0x130/0x360
[ 1802.694637][   T10]      netlink_unicast+0x449/0x710
[ 1802.694637][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1802.694637][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1802.694637][   T10]      ___sys_sendmsg+0xee/0x170
[ 1802.694637][   T10]      __sys_sendmsg+0xcd/0x170
[ 1802.694637][   T10]      do_syscall_64+0xc6/0x1e0
[ 1802.694637][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1802.694637][   T10] 
[ 1812.937789][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1812.938245][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1812.938245][   T10]      dst_init+0x84/0x4a0
[ 1812.938245][   T10]      dst_alloc+0x97/0x150
[ 1812.938245][   T10]      ip6_dst_alloc+0x23/0x90
[ 1812.938245][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1812.938245][   T10]      ip6_pol_route+0x56f/0x840
[ 1812.938245][   T10]      fib6_rule_lookup+0x456/0x630
[ 1812.938245][   T10]      ip6_route_input+0x59c/0xa50
[ 1812.938245][   T10]      ipv6_rcv+0x397/0x810
[ 1812.938245][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1812.938245][   T10]      process_backlog+0x101/0x620
[ 1812.938245][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1812.938245][   T10]      net_rx_action+0x495/0xbe0
[ 1812.938245][   T10]      __do_softirq+0x1b5/0x7f6
[ 1812.938245][   T10] 
[ 1812.939935][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1812.939935][   T10]      netdev_get_by_index+0x5e/0x80
[ 1812.939935][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1812.939935][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1812.939935][   T10]      ip6_route_add+0x1c/0x140
[ 1812.939935][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1812.939935][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1812.939935][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1812.939935][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1812.939935][   T10]      netlink_rcv_skb+0x130/0x360
[ 1812.939935][   T10]      netlink_unicast+0x449/0x710
[ 1812.939935][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1812.939935][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1812.939935][   T10]      ___sys_sendmsg+0xee/0x170
[ 1812.939935][   T10]      __sys_sendmsg+0xcd/0x170
[ 1812.939935][   T10]      do_syscall_64+0xc6/0x1e0
[ 1812.939935][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1812.939935][   T10] 
[ 1812.941952][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1812.941952][   T10]      netdev_get_by_index+0x5e/0x80
[ 1812.941952][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1812.941952][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1812.941952][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1812.941952][   T10]      ipv6_add_addr+0x411/0x2000
[ 1812.941952][   T10]      inet6_addr_add+0x30e/0xa40
[ 1812.941952][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1812.941952][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1812.941952][   T10]      netlink_rcv_skb+0x130/0x360
[ 1812.941952][   T10]      netlink_unicast+0x449/0x710
[ 1812.941952][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1812.941952][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1812.941952][   T10]      ___sys_sendmsg+0xee/0x170
[ 1812.941952][   T10]      __sys_sendmsg+0xcd/0x170
[ 1812.941952][   T10]      do_syscall_64+0xc6/0x1e0
[ 1812.941952][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1812.941952][   T10] 
[ 1812.943975][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1812.943975][   T10]      netdev_get_by_index+0x5e/0x80
[ 1812.943975][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1812.943975][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1812.943975][   T10]      ip6_route_add+0x1c/0x140
[ 1812.943975][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1812.943975][   T10]      addrconf_add_dev+0xe2/0x170
[ 1812.943975][   T10]      inet6_addr_add+0x12f/0xa40
[ 1812.943975][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1812.943975][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1812.943975][   T10]      netlink_rcv_skb+0x130/0x360
[ 1812.943975][   T10]      netlink_unicast+0x449/0x710
[ 1812.943975][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1812.943975][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1812.943975][   T10]      ___sys_sendmsg+0xee/0x170
[ 1812.943975][   T10]      __sys_sendmsg+0xcd/0x170
[ 1812.943975][   T10]      do_syscall_64+0xc6/0x1e0
[ 1812.943975][   T10] 
[ 1812.945949][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1812.945949][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1812.945949][   T10]      ipv6_find_idev+0x102/0x170
[ 1812.945949][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1812.945949][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1812.945949][   T10]      netlink_rcv_skb+0x130/0x360
[ 1812.945949][   T10]      netlink_unicast+0x449/0x710
[ 1812.945949][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1812.945949][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1812.945949][   T10]      ___sys_sendmsg+0xee/0x170
[ 1812.945949][   T10]      __sys_sendmsg+0xcd/0x170
[ 1812.945949][   T10]      do_syscall_64+0xc6/0x1e0
[ 1812.945949][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1812.945949][   T10] 
[ 1812.947493][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1812.947493][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1812.947493][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1812.947493][   T10]      ipv6_find_idev+0x102/0x170
[ 1812.947493][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1812.947493][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1812.947493][   T10]      netlink_rcv_skb+0x130/0x360
[ 1812.947493][   T10]      netlink_unicast+0x449/0x710
[ 1812.947493][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1812.947493][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1812.947493][   T10]      ___sys_sendmsg+0xee/0x170
[ 1812.947493][   T10]      __sys_sendmsg+0xcd/0x170
[ 1812.947493][   T10]      do_syscall_64+0xc6/0x1e0
[ 1812.947493][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1812.947493][   T10] 
[ 1812.949200][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1812.949444][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1812.949444][   T10]      dst_init+0x84/0x4a0
[ 1812.949444][   T10]      dst_alloc+0x97/0x150
[ 1812.949444][   T10]      ip6_dst_alloc+0x23/0x90
[ 1812.949444][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1812.949444][   T10]      ip6_pol_route+0x56f/0x840
[ 1812.949444][   T10]      fib6_rule_lookup+0x456/0x630
[ 1812.949444][   T10]      ip6_route_input+0x59c/0xa50
[ 1812.949444][   T10]      ipv6_rcv+0x397/0x810
[ 1812.949444][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1812.949444][   T10]      process_backlog+0x101/0x620
[ 1812.949444][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1812.949444][   T10]      net_rx_action+0x495/0xbe0
[ 1812.949444][   T10]      __do_softirq+0x1b5/0x7f6
[ 1812.949444][   T10] 
[ 1812.951086][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1812.951086][   T10]      netdev_get_by_index+0x5e/0x80
[ 1812.951086][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1812.951086][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1812.951086][   T10]      ip6_route_add+0x1c/0x140
[ 1812.951086][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1812.951086][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1812.951086][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1812.951086][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1812.951086][   T10]      netlink_rcv_skb+0x130/0x360
[ 1812.951086][   T10]      netlink_unicast+0x449/0x710
[ 1812.951086][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1812.951086][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1812.951086][   T10]      ___sys_sendmsg+0xee/0x170
[ 1812.951086][   T10]      __sys_sendmsg+0xcd/0x170
[ 1812.951086][   T10]      do_syscall_64+0xc6/0x1e0
[ 1812.951086][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1812.951086][   T10] 
[ 1812.953095][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1812.953095][   T10]      netdev_get_by_index+0x5e/0x80
[ 1812.953095][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1812.953095][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1812.953095][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1812.953095][   T10]      ipv6_add_addr+0x411/0x2000
[ 1812.953095][   T10]      inet6_addr_add+0x30e/0xa40
[ 1812.953095][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1812.953095][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1812.953095][   T10]      netlink_rcv_skb+0x130/0x360
[ 1812.953095][   T10]      netlink_unicast+0x449/0x710
[ 1812.953095][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1812.953095][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1812.953095][   T10]      ___sys_sendmsg+0xee/0x170
[ 1812.953095][   T10]      __sys_sendmsg+0xcd/0x170
[ 1812.953095][   T10]      do_syscall_64+0xc6/0x1e0
[ 1812.953095][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1812.953095][   T10] 
[ 1812.955125][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1812.955125][   T10]      netdev_get_by_index+0x5e/0x80
[ 1812.955125][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1812.955125][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1812.955125][   T10]      ip6_route_add+0x1c/0x140
[ 1812.955125][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1812.955125][   T10]      addrconf_add_dev+0xe2/0x170
[ 1812.955125][   T10]      inet6_addr_add+0x12f/0xa40
[ 1812.955125][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1812.955125][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1812.955125][   T10]      netlink_rcv_skb+0x130/0x360
[ 1812.955125][   T10]      netlink_unicast+0x449/0x710
[ 1812.955125][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1812.955125][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1812.955125][   T10]      ___sys_sendmsg+0xee/0x170
[ 1812.955125][   T10]      __sys_sendmsg+0xcd/0x170
[ 1812.955125][   T10]      do_syscall_64+0xc6/0x1e0
[ 1812.955125][   T10] 
[ 1812.957086][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1812.957086][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1812.957086][   T10]      ipv6_find_idev+0x102/0x170
[ 1812.957086][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1812.957086][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1812.957086][   T10]      netlink_rcv_skb+0x130/0x360
[ 1812.957086][   T10]      netlink_unicast+0x449/0x710
[ 1812.957086][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1812.957086][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1812.957086][   T10]      ___sys_sendmsg+0xee/0x170
[ 1812.957086][   T10]      __sys_sendmsg+0xcd/0x170
[ 1812.957086][   T10]      do_syscall_64+0xc6/0x1e0
[ 1812.957086][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1812.957086][   T10] 
[ 1812.958620][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1812.958620][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1812.958620][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1812.958620][   T10]      ipv6_find_idev+0x102/0x170
[ 1812.958620][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1812.958620][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1812.958620][   T10]      netlink_rcv_skb+0x130/0x360
[ 1812.958620][   T10]      netlink_unicast+0x449/0x710
[ 1812.958620][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1812.958620][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1812.958620][   T10]      ___sys_sendmsg+0xee/0x170
[ 1812.958620][   T10]      __sys_sendmsg+0xcd/0x170
[ 1812.958620][   T10]      do_syscall_64+0xc6/0x1e0
[ 1812.958620][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1812.958620][   T10] 
[ 1823.201808][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1823.202276][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1823.202276][   T10]      dst_init+0x84/0x4a0
[ 1823.202276][   T10]      dst_alloc+0x97/0x150
[ 1823.202276][   T10]      ip6_dst_alloc+0x23/0x90
[ 1823.202276][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1823.202276][   T10]      ip6_pol_route+0x56f/0x840
[ 1823.202276][   T10]      fib6_rule_lookup+0x456/0x630
[ 1823.202276][   T10]      ip6_route_input+0x59c/0xa50
[ 1823.202276][   T10]      ipv6_rcv+0x397/0x810
[ 1823.202276][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1823.202276][   T10]      process_backlog+0x101/0x620
[ 1823.202276][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1823.202276][   T10]      net_rx_action+0x495/0xbe0
[ 1823.202276][   T10]      __do_softirq+0x1b5/0x7f6
[ 1823.202276][   T10] 
[ 1823.203973][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1823.203973][   T10]      netdev_get_by_index+0x5e/0x80
[ 1823.203973][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1823.203973][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1823.203973][   T10]      ip6_route_add+0x1c/0x140
[ 1823.203973][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1823.203973][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1823.203973][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1823.203973][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1823.203973][   T10]      netlink_rcv_skb+0x130/0x360
[ 1823.203973][   T10]      netlink_unicast+0x449/0x710
[ 1823.203973][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1823.203973][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1823.203973][   T10]      ___sys_sendmsg+0xee/0x170
[ 1823.203973][   T10]      __sys_sendmsg+0xcd/0x170
[ 1823.203973][   T10]      do_syscall_64+0xc6/0x1e0
[ 1823.203973][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1823.203973][   T10] 
[ 1823.205971][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1823.205971][   T10]      netdev_get_by_index+0x5e/0x80
[ 1823.205971][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1823.205971][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1823.205971][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1823.205971][   T10]      ipv6_add_addr+0x411/0x2000
[ 1823.205971][   T10]      inet6_addr_add+0x30e/0xa40
[ 1823.205971][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1823.205971][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1823.205971][   T10]      netlink_rcv_skb+0x130/0x360
[ 1823.205971][   T10]      netlink_unicast+0x449/0x710
[ 1823.205971][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1823.205971][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1823.205971][   T10]      ___sys_sendmsg+0xee/0x170
[ 1823.205971][   T10]      __sys_sendmsg+0xcd/0x170
[ 1823.205971][   T10]      do_syscall_64+0xc6/0x1e0
[ 1823.205971][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1823.205971][   T10] 
[ 1823.207976][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1823.207976][   T10]      netdev_get_by_index+0x5e/0x80
[ 1823.207976][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1823.207976][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1823.207976][   T10]      ip6_route_add+0x1c/0x140
[ 1823.207976][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1823.207976][   T10]      addrconf_add_dev+0xe2/0x170
[ 1823.207976][   T10]      inet6_addr_add+0x12f/0xa40
[ 1823.207976][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1823.207976][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1823.207976][   T10]      netlink_rcv_skb+0x130/0x360
[ 1823.207976][   T10]      netlink_unicast+0x449/0x710
[ 1823.207976][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1823.207976][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1823.207976][   T10]      ___sys_sendmsg+0xee/0x170
[ 1823.207976][   T10]      __sys_sendmsg+0xcd/0x170
[ 1823.207976][   T10]      do_syscall_64+0xc6/0x1e0
[ 1823.207976][   T10] 
[ 1823.209948][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1823.209948][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1823.209948][   T10]      ipv6_find_idev+0x102/0x170
[ 1823.209948][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1823.209948][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1823.209948][   T10]      netlink_rcv_skb+0x130/0x360
[ 1823.209948][   T10]      netlink_unicast+0x449/0x710
[ 1823.209948][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1823.209948][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1823.209948][   T10]      ___sys_sendmsg+0xee/0x170
[ 1823.209948][   T10]      __sys_sendmsg+0xcd/0x170
[ 1823.209948][   T10]      do_syscall_64+0xc6/0x1e0
[ 1823.209948][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1823.209948][   T10] 
[ 1823.211504][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1823.211504][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1823.211504][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1823.211504][   T10]      ipv6_find_idev+0x102/0x170
[ 1823.211504][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1823.211504][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1823.211504][   T10]      netlink_rcv_skb+0x130/0x360
[ 1823.211504][   T10]      netlink_unicast+0x449/0x710
[ 1823.211504][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1823.211504][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1823.211504][   T10]      ___sys_sendmsg+0xee/0x170
[ 1823.211504][   T10]      __sys_sendmsg+0xcd/0x170
[ 1823.211504][   T10]      do_syscall_64+0xc6/0x1e0
[ 1823.211504][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1823.211504][   T10] 
[ 1823.213198][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1823.213440][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1823.213440][   T10]      dst_init+0x84/0x4a0
[ 1823.213440][   T10]      dst_alloc+0x97/0x150
[ 1823.213440][   T10]      ip6_dst_alloc+0x23/0x90
[ 1823.213440][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1823.213440][   T10]      ip6_pol_route+0x56f/0x840
[ 1823.213440][   T10]      fib6_rule_lookup+0x456/0x630
[ 1823.213440][   T10]      ip6_route_input+0x59c/0xa50
[ 1823.213440][   T10]      ipv6_rcv+0x397/0x810
[ 1823.213440][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1823.213440][   T10]      process_backlog+0x101/0x620
[ 1823.213440][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1823.213440][   T10]      net_rx_action+0x495/0xbe0
[ 1823.213440][   T10]      __do_softirq+0x1b5/0x7f6
[ 1823.213440][   T10] 
[ 1823.215082][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1823.215082][   T10]      netdev_get_by_index+0x5e/0x80
[ 1823.215082][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1823.215082][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1823.215082][   T10]      ip6_route_add+0x1c/0x140
[ 1823.215082][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1823.215082][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1823.215082][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1823.215082][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1823.215082][   T10]      netlink_rcv_skb+0x130/0x360
[ 1823.215082][   T10]      netlink_unicast+0x449/0x710
[ 1823.215082][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1823.215082][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1823.215082][   T10]      ___sys_sendmsg+0xee/0x170
[ 1823.215082][   T10]      __sys_sendmsg+0xcd/0x170
[ 1823.215082][   T10]      do_syscall_64+0xc6/0x1e0
[ 1823.215082][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1823.215082][   T10] 
[ 1823.217621][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1823.217621][   T10]      netdev_get_by_index+0x5e/0x80
[ 1823.217621][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1823.217621][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1823.217621][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1823.217621][   T10]      ipv6_add_addr+0x411/0x2000
[ 1823.217621][   T10]      inet6_addr_add+0x30e/0xa40
[ 1823.217621][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1823.217621][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1823.217621][   T10]      netlink_rcv_skb+0x130/0x360
[ 1823.217621][   T10]      netlink_unicast+0x449/0x710
[ 1823.217621][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1823.217621][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1823.217621][   T10]      ___sys_sendmsg+0xee/0x170
[ 1823.217621][   T10]      __sys_sendmsg+0xcd/0x170
[ 1823.217621][   T10]      do_syscall_64+0xc6/0x1e0
[ 1823.217621][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1823.217621][   T10] 
[ 1823.219614][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1823.219614][   T10]      netdev_get_by_index+0x5e/0x80
[ 1823.219614][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1823.219614][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1823.219614][   T10]      ip6_route_add+0x1c/0x140
[ 1823.219614][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1823.219614][   T10]      addrconf_add_dev+0xe2/0x170
[ 1823.219614][   T10]      inet6_addr_add+0x12f/0xa40
[ 1823.219614][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1823.219614][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1823.219614][   T10]      netlink_rcv_skb+0x130/0x360
[ 1823.219614][   T10]      netlink_unicast+0x449/0x710
[ 1823.219614][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1823.219614][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1823.219614][   T10]      ___sys_sendmsg+0xee/0x170
[ 1823.219614][   T10]      __sys_sendmsg+0xcd/0x170
[ 1823.219614][   T10]      do_syscall_64+0xc6/0x1e0
[ 1823.219614][   T10] 
[ 1823.221947][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1823.221947][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1823.221947][   T10]      ipv6_find_idev+0x102/0x170
[ 1823.221947][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1823.221947][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1823.221947][   T10]      netlink_rcv_skb+0x130/0x360
[ 1823.221947][   T10]      netlink_unicast+0x449/0x710
[ 1823.221947][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1823.221947][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1823.221947][   T10]      ___sys_sendmsg+0xee/0x170
[ 1823.221947][   T10]      __sys_sendmsg+0xcd/0x170
[ 1823.221947][   T10]      do_syscall_64+0xc6/0x1e0
[ 1823.221947][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1823.221947][   T10] 
[ 1823.223486][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1823.223486][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1823.223486][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1823.223486][   T10]      ipv6_find_idev+0x102/0x170
[ 1823.223486][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1823.223486][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1823.223486][   T10]      netlink_rcv_skb+0x130/0x360
[ 1823.223486][   T10]      netlink_unicast+0x449/0x710
[ 1823.223486][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1823.223486][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1823.223486][   T10]      ___sys_sendmsg+0xee/0x170
[ 1823.223486][   T10]      __sys_sendmsg+0xcd/0x170
[ 1823.223486][   T10]      do_syscall_64+0xc6/0x1e0
[ 1823.223486][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1823.223486][   T10] 
[ 1833.841923][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1833.842383][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1833.842383][   T10]      dst_init+0x84/0x4a0
[ 1833.842383][   T10]      dst_alloc+0x97/0x150
[ 1833.842383][   T10]      ip6_dst_alloc+0x23/0x90
[ 1833.842383][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1833.842383][   T10]      ip6_pol_route+0x56f/0x840
[ 1833.842383][   T10]      fib6_rule_lookup+0x456/0x630
[ 1833.842383][   T10]      ip6_route_input+0x59c/0xa50
[ 1833.842383][   T10]      ipv6_rcv+0x397/0x810
[ 1833.842383][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1833.842383][   T10]      process_backlog+0x101/0x620
[ 1833.842383][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1833.842383][   T10]      net_rx_action+0x495/0xbe0
[ 1833.842383][   T10]      __do_softirq+0x1b5/0x7f6
[ 1833.842383][   T10] 
[ 1833.844089][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1833.844089][   T10]      netdev_get_by_index+0x5e/0x80
[ 1833.844089][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1833.844089][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1833.844089][   T10]      ip6_route_add+0x1c/0x140
[ 1833.844089][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1833.844089][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1833.844089][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1833.844089][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1833.844089][   T10]      netlink_rcv_skb+0x130/0x360
[ 1833.844089][   T10]      netlink_unicast+0x449/0x710
[ 1833.844089][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1833.844089][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1833.844089][   T10]      ___sys_sendmsg+0xee/0x170
[ 1833.844089][   T10]      __sys_sendmsg+0xcd/0x170
[ 1833.844089][   T10]      do_syscall_64+0xc6/0x1e0
[ 1833.844089][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1833.844089][   T10] 
[ 1833.846103][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1833.846103][   T10]      netdev_get_by_index+0x5e/0x80
[ 1833.846103][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1833.846103][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1833.846103][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1833.846103][   T10]      ipv6_add_addr+0x411/0x2000
[ 1833.846103][   T10]      inet6_addr_add+0x30e/0xa40
[ 1833.846103][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1833.846103][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1833.846103][   T10]      netlink_rcv_skb+0x130/0x360
[ 1833.846103][   T10]      netlink_unicast+0x449/0x710
[ 1833.846103][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1833.846103][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1833.846103][   T10]      ___sys_sendmsg+0xee/0x170
[ 1833.846103][   T10]      __sys_sendmsg+0xcd/0x170
[ 1833.846103][   T10]      do_syscall_64+0xc6/0x1e0
[ 1833.846103][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1833.846103][   T10] 
[ 1833.848123][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1833.848123][   T10]      netdev_get_by_index+0x5e/0x80
[ 1833.848123][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1833.848123][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1833.848123][   T10]      ip6_route_add+0x1c/0x140
[ 1833.848123][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1833.848123][   T10]      addrconf_add_dev+0xe2/0x170
[ 1833.848123][   T10]      inet6_addr_add+0x12f/0xa40
[ 1833.848123][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1833.848123][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1833.848123][   T10]      netlink_rcv_skb+0x130/0x360
[ 1833.848123][   T10]      netlink_unicast+0x449/0x710
[ 1833.848123][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1833.848123][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1833.848123][   T10]      ___sys_sendmsg+0xee/0x170
[ 1833.848123][   T10]      __sys_sendmsg+0xcd/0x170
[ 1833.848123][   T10]      do_syscall_64+0xc6/0x1e0
[ 1833.848123][   T10] 
[ 1833.850107][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1833.850107][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1833.850107][   T10]      ipv6_find_idev+0x102/0x170
[ 1833.850107][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1833.850107][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1833.850107][   T10]      netlink_rcv_skb+0x130/0x360
[ 1833.850107][   T10]      netlink_unicast+0x449/0x710
[ 1833.850107][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1833.850107][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1833.850107][   T10]      ___sys_sendmsg+0xee/0x170
[ 1833.850107][   T10]      __sys_sendmsg+0xcd/0x170
[ 1833.850107][   T10]      do_syscall_64+0xc6/0x1e0
[ 1833.850107][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1833.850107][   T10] 
[ 1833.851656][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1833.851656][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1833.851656][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1833.851656][   T10]      ipv6_find_idev+0x102/0x170
[ 1833.851656][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1833.851656][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1833.851656][   T10]      netlink_rcv_skb+0x130/0x360
[ 1833.851656][   T10]      netlink_unicast+0x449/0x710
[ 1833.851656][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1833.851656][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1833.851656][   T10]      ___sys_sendmsg+0xee/0x170
[ 1833.851656][   T10]      __sys_sendmsg+0xcd/0x170
[ 1833.851656][   T10]      do_syscall_64+0xc6/0x1e0
[ 1833.851656][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1833.851656][   T10] 
[ 1833.853366][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1833.853619][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1833.853619][   T10]      dst_init+0x84/0x4a0
[ 1833.853619][   T10]      dst_alloc+0x97/0x150
[ 1833.853619][   T10]      ip6_dst_alloc+0x23/0x90
[ 1833.853619][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1833.853619][   T10]      ip6_pol_route+0x56f/0x840
[ 1833.853619][   T10]      fib6_rule_lookup+0x456/0x630
[ 1833.853619][   T10]      ip6_route_input+0x59c/0xa50
[ 1833.853619][   T10]      ipv6_rcv+0x397/0x810
[ 1833.853619][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1833.853619][   T10]      process_backlog+0x101/0x620
[ 1833.853619][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1833.853619][   T10]      net_rx_action+0x495/0xbe0
[ 1833.853619][   T10]      __do_softirq+0x1b5/0x7f6
[ 1833.853619][   T10] 
[ 1833.855275][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1833.855275][   T10]      netdev_get_by_index+0x5e/0x80
[ 1833.855275][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1833.855275][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1833.855275][   T10]      ip6_route_add+0x1c/0x140
[ 1833.855275][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1833.855275][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1833.855275][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1833.855275][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1833.855275][   T10]      netlink_rcv_skb+0x130/0x360
[ 1833.855275][   T10]      netlink_unicast+0x449/0x710
[ 1833.855275][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1833.855275][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1833.855275][   T10]      ___sys_sendmsg+0xee/0x170
[ 1833.855275][   T10]      __sys_sendmsg+0xcd/0x170
[ 1833.855275][   T10]      do_syscall_64+0xc6/0x1e0
[ 1833.855275][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1833.855275][   T10] 
[ 1833.857293][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1833.857293][   T10]      netdev_get_by_index+0x5e/0x80
[ 1833.857293][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1833.857293][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1833.857293][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1833.857293][   T10]      ipv6_add_addr+0x411/0x2000
[ 1833.857293][   T10]      inet6_addr_add+0x30e/0xa40
[ 1833.857293][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1833.857293][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1833.857293][   T10]      netlink_rcv_skb+0x130/0x360
[ 1833.857293][   T10]      netlink_unicast+0x449/0x710
[ 1833.857293][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1833.857293][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1833.857293][   T10]      ___sys_sendmsg+0xee/0x170
[ 1833.857293][   T10]      __sys_sendmsg+0xcd/0x170
[ 1833.857293][   T10]      do_syscall_64+0xc6/0x1e0
[ 1833.857293][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1833.857293][   T10] 
[ 1833.859297][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1833.859297][   T10]      netdev_get_by_index+0x5e/0x80
[ 1833.859297][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1833.859297][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1833.859297][   T10]      ip6_route_add+0x1c/0x140
[ 1833.859297][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1833.859297][   T10]      addrconf_add_dev+0xe2/0x170
[ 1833.859297][   T10]      inet6_addr_add+0x12f/0xa40
[ 1833.859297][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1833.859297][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1833.859297][   T10]      netlink_rcv_skb+0x130/0x360
[ 1833.859297][   T10]      netlink_unicast+0x449/0x710
[ 1833.859297][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1833.859297][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1833.859297][   T10]      ___sys_sendmsg+0xee/0x170
[ 1833.859297][   T10]      __sys_sendmsg+0xcd/0x170
[ 1833.859297][   T10]      do_syscall_64+0xc6/0x1e0
[ 1833.859297][   T10] 
[ 1833.861650][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1833.861650][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1833.861650][   T10]      ipv6_find_idev+0x102/0x170
[ 1833.861650][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1833.861650][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1833.861650][   T10]      netlink_rcv_skb+0x130/0x360
[ 1833.861650][   T10]      netlink_unicast+0x449/0x710
[ 1833.861650][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1833.861650][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1833.861650][   T10]      ___sys_sendmsg+0xee/0x170
[ 1833.861650][   T10]      __sys_sendmsg+0xcd/0x170
[ 1833.861650][   T10]      do_syscall_64+0xc6/0x1e0
[ 1833.861650][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1833.861650][   T10] 
[ 1833.863201][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1833.863201][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1833.863201][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1833.863201][   T10]      ipv6_find_idev+0x102/0x170
[ 1833.863201][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1833.863201][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1833.863201][   T10]      netlink_rcv_skb+0x130/0x360
[ 1833.863201][   T10]      netlink_unicast+0x449/0x710
[ 1833.863201][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1833.863201][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1833.863201][   T10]      ___sys_sendmsg+0xee/0x170
[ 1833.863201][   T10]      __sys_sendmsg+0xcd/0x170
[ 1833.863201][   T10]      do_syscall_64+0xc6/0x1e0
[ 1833.863201][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1833.863201][   T10] 
[ 1844.105719][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1844.106178][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1844.106178][   T10]      dst_init+0x84/0x4a0
[ 1844.106178][   T10]      dst_alloc+0x97/0x150
[ 1844.106178][   T10]      ip6_dst_alloc+0x23/0x90
[ 1844.106178][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1844.106178][   T10]      ip6_pol_route+0x56f/0x840
[ 1844.106178][   T10]      fib6_rule_lookup+0x456/0x630
[ 1844.106178][   T10]      ip6_route_input+0x59c/0xa50
[ 1844.106178][   T10]      ipv6_rcv+0x397/0x810
[ 1844.106178][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1844.106178][   T10]      process_backlog+0x101/0x620
[ 1844.106178][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1844.106178][   T10]      net_rx_action+0x495/0xbe0
[ 1844.106178][   T10]      __do_softirq+0x1b5/0x7f6
[ 1844.106178][   T10] 
[ 1844.107870][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1844.107870][   T10]      netdev_get_by_index+0x5e/0x80
[ 1844.107870][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1844.107870][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1844.107870][   T10]      ip6_route_add+0x1c/0x140
[ 1844.107870][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1844.107870][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1844.107870][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1844.107870][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1844.107870][   T10]      netlink_rcv_skb+0x130/0x360
[ 1844.107870][   T10]      netlink_unicast+0x449/0x710
[ 1844.107870][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1844.107870][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1844.107870][   T10]      ___sys_sendmsg+0xee/0x170
[ 1844.107870][   T10]      __sys_sendmsg+0xcd/0x170
[ 1844.107870][   T10]      do_syscall_64+0xc6/0x1e0
[ 1844.107870][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1844.107870][   T10] 
[ 1844.109875][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1844.109875][   T10]      netdev_get_by_index+0x5e/0x80
[ 1844.109875][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1844.109875][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1844.109875][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1844.109875][   T10]      ipv6_add_addr+0x411/0x2000
[ 1844.109875][   T10]      inet6_addr_add+0x30e/0xa40
[ 1844.109875][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1844.109875][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1844.109875][   T10]      netlink_rcv_skb+0x130/0x360
[ 1844.109875][   T10]      netlink_unicast+0x449/0x710
[ 1844.109875][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1844.109875][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1844.109875][   T10]      ___sys_sendmsg+0xee/0x170
[ 1844.109875][   T10]      __sys_sendmsg+0xcd/0x170
[ 1844.109875][   T10]      do_syscall_64+0xc6/0x1e0
[ 1844.109875][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1844.109875][   T10] 
[ 1844.111874][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1844.111874][   T10]      netdev_get_by_index+0x5e/0x80
[ 1844.111874][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1844.111874][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1844.111874][   T10]      ip6_route_add+0x1c/0x140
[ 1844.111874][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1844.111874][   T10]      addrconf_add_dev+0xe2/0x170
[ 1844.111874][   T10]      inet6_addr_add+0x12f/0xa40
[ 1844.111874][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1844.111874][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1844.111874][   T10]      netlink_rcv_skb+0x130/0x360
[ 1844.111874][   T10]      netlink_unicast+0x449/0x710
[ 1844.111874][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1844.111874][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1844.111874][   T10]      ___sys_sendmsg+0xee/0x170
[ 1844.111874][   T10]      __sys_sendmsg+0xcd/0x170
[ 1844.111874][   T10]      do_syscall_64+0xc6/0x1e0
[ 1844.111874][   T10] 
[ 1844.113852][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1844.113852][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1844.113852][   T10]      ipv6_find_idev+0x102/0x170
[ 1844.113852][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1844.113852][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1844.113852][   T10]      netlink_rcv_skb+0x130/0x360
[ 1844.113852][   T10]      netlink_unicast+0x449/0x710
[ 1844.113852][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1844.113852][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1844.113852][   T10]      ___sys_sendmsg+0xee/0x170
[ 1844.113852][   T10]      __sys_sendmsg+0xcd/0x170
[ 1844.113852][   T10]      do_syscall_64+0xc6/0x1e0
[ 1844.113852][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1844.113852][   T10] 
[ 1844.115394][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1844.115394][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1844.115394][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1844.115394][   T10]      ipv6_find_idev+0x102/0x170
[ 1844.115394][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1844.115394][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1844.115394][   T10]      netlink_rcv_skb+0x130/0x360
[ 1844.115394][   T10]      netlink_unicast+0x449/0x710
[ 1844.115394][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1844.115394][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1844.115394][   T10]      ___sys_sendmsg+0xee/0x170
[ 1844.115394][   T10]      __sys_sendmsg+0xcd/0x170
[ 1844.115394][   T10]      do_syscall_64+0xc6/0x1e0
[ 1844.115394][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1844.115394][   T10] 
[ 1844.117093][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1844.117342][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1844.117342][   T10]      dst_init+0x84/0x4a0
[ 1844.117342][   T10]      dst_alloc+0x97/0x150
[ 1844.117342][   T10]      ip6_dst_alloc+0x23/0x90
[ 1844.117342][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1844.117342][   T10]      ip6_pol_route+0x56f/0x840
[ 1844.117342][   T10]      fib6_rule_lookup+0x456/0x630
[ 1844.117342][   T10]      ip6_route_input+0x59c/0xa50
[ 1844.117342][   T10]      ipv6_rcv+0x397/0x810
[ 1844.117342][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1844.117342][   T10]      process_backlog+0x101/0x620
[ 1844.117342][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1844.117342][   T10]      net_rx_action+0x495/0xbe0
[ 1844.117342][   T10]      __do_softirq+0x1b5/0x7f6
[ 1844.117342][   T10] 
[ 1844.118982][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1844.118982][   T10]      netdev_get_by_index+0x5e/0x80
[ 1844.118982][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1844.118982][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1844.118982][   T10]      ip6_route_add+0x1c/0x140
[ 1844.118982][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1844.118982][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1844.118982][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1844.118982][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1844.118982][   T10]      netlink_rcv_skb+0x130/0x360
[ 1844.118982][   T10]      netlink_unicast+0x449/0x710
[ 1844.118982][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1844.118982][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1844.118982][   T10]      ___sys_sendmsg+0xee/0x170
[ 1844.118982][   T10]      __sys_sendmsg+0xcd/0x170
[ 1844.118982][   T10]      do_syscall_64+0xc6/0x1e0
[ 1844.118982][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1844.118982][   T10] 
[ 1844.120994][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1844.120994][   T10]      netdev_get_by_index+0x5e/0x80
[ 1844.120994][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1844.120994][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1844.120994][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1844.120994][   T10]      ipv6_add_addr+0x411/0x2000
[ 1844.120994][   T10]      inet6_addr_add+0x30e/0xa40
[ 1844.120994][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1844.120994][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1844.120994][   T10]      netlink_rcv_skb+0x130/0x360
[ 1844.120994][   T10]      netlink_unicast+0x449/0x710
[ 1844.120994][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1844.120994][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1844.120994][   T10]      ___sys_sendmsg+0xee/0x170
[ 1844.120994][   T10]      __sys_sendmsg+0xcd/0x170
[ 1844.120994][   T10]      do_syscall_64+0xc6/0x1e0
[ 1844.120994][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1844.120994][   T10] 
[ 1844.123003][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1844.123003][   T10]      netdev_get_by_index+0x5e/0x80
[ 1844.123003][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1844.123003][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1844.123003][   T10]      ip6_route_add+0x1c/0x140
[ 1844.123003][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1844.123003][   T10]      addrconf_add_dev+0xe2/0x170
[ 1844.123003][   T10]      inet6_addr_add+0x12f/0xa40
[ 1844.123003][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1844.123003][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1844.123003][   T10]      netlink_rcv_skb+0x130/0x360
[ 1844.123003][   T10]      netlink_unicast+0x449/0x710
[ 1844.123003][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1844.123003][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1844.123003][   T10]      ___sys_sendmsg+0xee/0x170
[ 1844.123003][   T10]      __sys_sendmsg+0xcd/0x170
[ 1844.123003][   T10]      do_syscall_64+0xc6/0x1e0
[ 1844.123003][   T10] 
[ 1844.125353][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1844.125353][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1844.125353][   T10]      ipv6_find_idev+0x102/0x170
[ 1844.125353][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1844.125353][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1844.125353][   T10]      netlink_rcv_skb+0x130/0x360
[ 1844.125353][   T10]      netlink_unicast+0x449/0x710
[ 1844.125353][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1844.125353][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1844.125353][   T10]      ___sys_sendmsg+0xee/0x170
[ 1844.125353][   T10]      __sys_sendmsg+0xcd/0x170
[ 1844.125353][   T10]      do_syscall_64+0xc6/0x1e0
[ 1844.125353][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1844.125353][   T10] 
[ 1844.126889][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1844.126889][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1844.126889][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1844.126889][   T10]      ipv6_find_idev+0x102/0x170
[ 1844.126889][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1844.126889][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1844.126889][   T10]      netlink_rcv_skb+0x130/0x360
[ 1844.126889][   T10]      netlink_unicast+0x449/0x710
[ 1844.126889][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1844.126889][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1844.126889][   T10]      ___sys_sendmsg+0xee/0x170
[ 1844.126889][   T10]      __sys_sendmsg+0xcd/0x170
[ 1844.126889][   T10]      do_syscall_64+0xc6/0x1e0
[ 1844.126889][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1844.126889][   T10] 
[ 1854.369789][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1854.370252][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1854.370252][   T10]      dst_init+0x84/0x4a0
[ 1854.370252][   T10]      dst_alloc+0x97/0x150
[ 1854.370252][   T10]      ip6_dst_alloc+0x23/0x90
[ 1854.370252][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1854.370252][   T10]      ip6_pol_route+0x56f/0x840
[ 1854.370252][   T10]      fib6_rule_lookup+0x456/0x630
[ 1854.370252][   T10]      ip6_route_input+0x59c/0xa50
[ 1854.370252][   T10]      ipv6_rcv+0x397/0x810
[ 1854.370252][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1854.370252][   T10]      process_backlog+0x101/0x620
[ 1854.370252][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1854.370252][   T10]      net_rx_action+0x495/0xbe0
[ 1854.370252][   T10]      __do_softirq+0x1b5/0x7f6
[ 1854.370252][   T10] 
[ 1854.371949][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1854.371949][   T10]      netdev_get_by_index+0x5e/0x80
[ 1854.371949][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1854.371949][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1854.371949][   T10]      ip6_route_add+0x1c/0x140
[ 1854.371949][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1854.371949][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1854.371949][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1854.371949][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1854.371949][   T10]      netlink_rcv_skb+0x130/0x360
[ 1854.371949][   T10]      netlink_unicast+0x449/0x710
[ 1854.371949][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1854.371949][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1854.371949][   T10]      ___sys_sendmsg+0xee/0x170
[ 1854.371949][   T10]      __sys_sendmsg+0xcd/0x170
[ 1854.371949][   T10]      do_syscall_64+0xc6/0x1e0
[ 1854.371949][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1854.371949][   T10] 
[ 1854.373981][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1854.373981][   T10]      netdev_get_by_index+0x5e/0x80
[ 1854.373981][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1854.373981][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1854.373981][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1854.373981][   T10]      ipv6_add_addr+0x411/0x2000
[ 1854.373981][   T10]      inet6_addr_add+0x30e/0xa40
[ 1854.373981][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1854.373981][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1854.373981][   T10]      netlink_rcv_skb+0x130/0x360
[ 1854.373981][   T10]      netlink_unicast+0x449/0x710
[ 1854.373981][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1854.373981][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1854.373981][   T10]      ___sys_sendmsg+0xee/0x170
[ 1854.373981][   T10]      __sys_sendmsg+0xcd/0x170
[ 1854.373981][   T10]      do_syscall_64+0xc6/0x1e0
[ 1854.373981][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1854.373981][   T10] 
[ 1854.375998][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1854.375998][   T10]      netdev_get_by_index+0x5e/0x80
[ 1854.375998][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1854.375998][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1854.375998][   T10]      ip6_route_add+0x1c/0x140
[ 1854.375998][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1854.375998][   T10]      addrconf_add_dev+0xe2/0x170
[ 1854.375998][   T10]      inet6_addr_add+0x12f/0xa40
[ 1854.375998][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1854.375998][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1854.375998][   T10]      netlink_rcv_skb+0x130/0x360
[ 1854.375998][   T10]      netlink_unicast+0x449/0x710
[ 1854.375998][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1854.375998][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1854.375998][   T10]      ___sys_sendmsg+0xee/0x170
[ 1854.375998][   T10]      __sys_sendmsg+0xcd/0x170
[ 1854.375998][   T10]      do_syscall_64+0xc6/0x1e0
[ 1854.375998][   T10] 
[ 1854.377979][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1854.377979][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1854.377979][   T10]      ipv6_find_idev+0x102/0x170
[ 1854.377979][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1854.377979][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1854.377979][   T10]      netlink_rcv_skb+0x130/0x360
[ 1854.377979][   T10]      netlink_unicast+0x449/0x710
[ 1854.377979][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1854.377979][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1854.377979][   T10]      ___sys_sendmsg+0xee/0x170
[ 1854.377979][   T10]      __sys_sendmsg+0xcd/0x170
[ 1854.377979][   T10]      do_syscall_64+0xc6/0x1e0
[ 1854.377979][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1854.377979][   T10] 
[ 1854.379529][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1854.379529][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1854.379529][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1854.379529][   T10]      ipv6_find_idev+0x102/0x170
[ 1854.379529][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1854.379529][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1854.379529][   T10]      netlink_rcv_skb+0x130/0x360
[ 1854.379529][   T10]      netlink_unicast+0x449/0x710
[ 1854.379529][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1854.379529][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1854.379529][   T10]      ___sys_sendmsg+0xee/0x170
[ 1854.379529][   T10]      __sys_sendmsg+0xcd/0x170
[ 1854.379529][   T10]      do_syscall_64+0xc6/0x1e0
[ 1854.379529][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1854.379529][   T10] 
[ 1854.381233][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1854.381493][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1854.381493][   T10]      dst_init+0x84/0x4a0
[ 1854.381493][   T10]      dst_alloc+0x97/0x150
[ 1854.381493][   T10]      ip6_dst_alloc+0x23/0x90
[ 1854.381493][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1854.381493][   T10]      ip6_pol_route+0x56f/0x840
[ 1854.381493][   T10]      fib6_rule_lookup+0x456/0x630
[ 1854.381493][   T10]      ip6_route_input+0x59c/0xa50
[ 1854.381493][   T10]      ipv6_rcv+0x397/0x810
[ 1854.381493][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1854.381493][   T10]      process_backlog+0x101/0x620
[ 1854.381493][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1854.381493][   T10]      net_rx_action+0x495/0xbe0
[ 1854.381493][   T10]      __do_softirq+0x1b5/0x7f6
[ 1854.381493][   T10] 
[ 1854.383142][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1854.383142][   T10]      netdev_get_by_index+0x5e/0x80
[ 1854.383142][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1854.383142][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1854.383142][   T10]      ip6_route_add+0x1c/0x140
[ 1854.383142][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1854.383142][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1854.383142][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1854.383142][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1854.383142][   T10]      netlink_rcv_skb+0x130/0x360
[ 1854.383142][   T10]      netlink_unicast+0x449/0x710
[ 1854.383142][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1854.383142][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1854.383142][   T10]      ___sys_sendmsg+0xee/0x170
[ 1854.383142][   T10]      __sys_sendmsg+0xcd/0x170
[ 1854.383142][   T10]      do_syscall_64+0xc6/0x1e0
[ 1854.383142][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1854.383142][   T10] 
[ 1854.385165][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1854.385165][   T10]      netdev_get_by_index+0x5e/0x80
[ 1854.385165][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1854.385165][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1854.385165][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1854.385165][   T10]      ipv6_add_addr+0x411/0x2000
[ 1854.385165][   T10]      inet6_addr_add+0x30e/0xa40
[ 1854.385165][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1854.385165][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1854.385165][   T10]      netlink_rcv_skb+0x130/0x360
[ 1854.385165][   T10]      netlink_unicast+0x449/0x710
[ 1854.385165][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1854.385165][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1854.385165][   T10]      ___sys_sendmsg+0xee/0x170
[ 1854.385165][   T10]      __sys_sendmsg+0xcd/0x170
[ 1854.385165][   T10]      do_syscall_64+0xc6/0x1e0
[ 1854.385165][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1854.385165][   T10] 
[ 1854.387183][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1854.387183][   T10]      netdev_get_by_index+0x5e/0x80
[ 1854.387183][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1854.387183][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1854.387183][   T10]      ip6_route_add+0x1c/0x140
[ 1854.387183][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1854.387183][   T10]      addrconf_add_dev+0xe2/0x170
[ 1854.387183][   T10]      inet6_addr_add+0x12f/0xa40
[ 1854.387183][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1854.387183][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1854.387183][   T10]      netlink_rcv_skb+0x130/0x360
[ 1854.387183][   T10]      netlink_unicast+0x449/0x710
[ 1854.387183][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1854.387183][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1854.387183][   T10]      ___sys_sendmsg+0xee/0x170
[ 1854.387183][   T10]      __sys_sendmsg+0xcd/0x170
[ 1854.387183][   T10]      do_syscall_64+0xc6/0x1e0
[ 1854.387183][   T10] 
[ 1854.389174][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1854.389174][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1854.389174][   T10]      ipv6_find_idev+0x102/0x170
[ 1854.389174][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1854.389174][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1854.389174][   T10]      netlink_rcv_skb+0x130/0x360
[ 1854.389174][   T10]      netlink_unicast+0x449/0x710
[ 1854.389174][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1854.389174][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1854.389174][   T10]      ___sys_sendmsg+0xee/0x170
[ 1854.389174][   T10]      __sys_sendmsg+0xcd/0x170
[ 1854.389174][   T10]      do_syscall_64+0xc6/0x1e0
[ 1854.389174][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1854.389174][   T10] 
[ 1854.390721][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1854.390721][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1854.390721][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1854.390721][   T10]      ipv6_find_idev+0x102/0x170
[ 1854.390721][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1854.390721][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1854.390721][   T10]      netlink_rcv_skb+0x130/0x360
[ 1854.390721][   T10]      netlink_unicast+0x449/0x710
[ 1854.390721][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1854.390721][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1854.390721][   T10]      ___sys_sendmsg+0xee/0x170
[ 1854.390721][   T10]      __sys_sendmsg+0xcd/0x170
[ 1854.390721][   T10]      do_syscall_64+0xc6/0x1e0
[ 1854.390721][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1854.390721][   T10] 
[ 1864.633718][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1864.634123][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1864.634123][   T10]      dst_init+0x84/0x4a0
[ 1864.634123][   T10]      dst_alloc+0x97/0x150
[ 1864.634123][   T10]      ip6_dst_alloc+0x23/0x90
[ 1864.634123][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1864.634123][   T10]      ip6_pol_route+0x56f/0x840
[ 1864.634123][   T10]      fib6_rule_lookup+0x456/0x630
[ 1864.634123][   T10]      ip6_route_input+0x59c/0xa50
[ 1864.634123][   T10]      ipv6_rcv+0x397/0x810
[ 1864.634123][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1864.634123][   T10]      process_backlog+0x101/0x620
[ 1864.634123][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1864.634123][   T10]      net_rx_action+0x495/0xbe0
[ 1864.634123][   T10]      __do_softirq+0x1b5/0x7f6
[ 1864.634123][   T10] 
[ 1864.635828][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1864.635828][   T10]      netdev_get_by_index+0x5e/0x80
[ 1864.635828][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1864.635828][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1864.635828][   T10]      ip6_route_add+0x1c/0x140
[ 1864.635828][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1864.635828][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1864.635828][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1864.635828][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1864.635828][   T10]      netlink_rcv_skb+0x130/0x360
[ 1864.635828][   T10]      netlink_unicast+0x449/0x710
[ 1864.635828][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1864.635828][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1864.635828][   T10]      ___sys_sendmsg+0xee/0x170
[ 1864.635828][   T10]      __sys_sendmsg+0xcd/0x170
[ 1864.635828][   T10]      do_syscall_64+0xc6/0x1e0
[ 1864.635828][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1864.635828][   T10] 
[ 1864.637832][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1864.637832][   T10]      netdev_get_by_index+0x5e/0x80
[ 1864.637832][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1864.637832][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1864.637832][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1864.637832][   T10]      ipv6_add_addr+0x411/0x2000
[ 1864.637832][   T10]      inet6_addr_add+0x30e/0xa40
[ 1864.637832][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1864.637832][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1864.637832][   T10]      netlink_rcv_skb+0x130/0x360
[ 1864.637832][   T10]      netlink_unicast+0x449/0x710
[ 1864.637832][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1864.637832][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1864.637832][   T10]      ___sys_sendmsg+0xee/0x170
[ 1864.637832][   T10]      __sys_sendmsg+0xcd/0x170
[ 1864.637832][   T10]      do_syscall_64+0xc6/0x1e0
[ 1864.637832][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1864.637832][   T10] 
[ 1864.639842][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1864.639842][   T10]      netdev_get_by_index+0x5e/0x80
[ 1864.639842][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1864.639842][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1864.639842][   T10]      ip6_route_add+0x1c/0x140
[ 1864.639842][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1864.639842][   T10]      addrconf_add_dev+0xe2/0x170
[ 1864.639842][   T10]      inet6_addr_add+0x12f/0xa40
[ 1864.639842][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1864.639842][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1864.639842][   T10]      netlink_rcv_skb+0x130/0x360
[ 1864.639842][   T10]      netlink_unicast+0x449/0x710
[ 1864.639842][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1864.639842][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1864.639842][   T10]      ___sys_sendmsg+0xee/0x170
[ 1864.639842][   T10]      __sys_sendmsg+0xcd/0x170
[ 1864.639842][   T10]      do_syscall_64+0xc6/0x1e0
[ 1864.639842][   T10] 
[ 1864.641817][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1864.641817][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1864.641817][   T10]      ipv6_find_idev+0x102/0x170
[ 1864.641817][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1864.641817][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1864.641817][   T10]      netlink_rcv_skb+0x130/0x360
[ 1864.641817][   T10]      netlink_unicast+0x449/0x710
[ 1864.641817][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1864.641817][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1864.641817][   T10]      ___sys_sendmsg+0xee/0x170
[ 1864.641817][   T10]      __sys_sendmsg+0xcd/0x170
[ 1864.641817][   T10]      do_syscall_64+0xc6/0x1e0
[ 1864.641817][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1864.641817][   T10] 
[ 1864.643373][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1864.643373][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1864.643373][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1864.643373][   T10]      ipv6_find_idev+0x102/0x170
[ 1864.643373][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1864.643373][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1864.643373][   T10]      netlink_rcv_skb+0x130/0x360
[ 1864.643373][   T10]      netlink_unicast+0x449/0x710
[ 1864.643373][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1864.643373][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1864.643373][   T10]      ___sys_sendmsg+0xee/0x170
[ 1864.643373][   T10]      __sys_sendmsg+0xcd/0x170
[ 1864.643373][   T10]      do_syscall_64+0xc6/0x1e0
[ 1864.643373][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1864.643373][   T10] 
[ 1864.645082][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1864.645334][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1864.645334][   T10]      dst_init+0x84/0x4a0
[ 1864.645334][   T10]      dst_alloc+0x97/0x150
[ 1864.645334][   T10]      ip6_dst_alloc+0x23/0x90
[ 1864.645334][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1864.645334][   T10]      ip6_pol_route+0x56f/0x840
[ 1864.645334][   T10]      fib6_rule_lookup+0x456/0x630
[ 1864.645334][   T10]      ip6_route_input+0x59c/0xa50
[ 1864.645334][   T10]      ipv6_rcv+0x397/0x810
[ 1864.645334][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1864.645334][   T10]      process_backlog+0x101/0x620
[ 1864.645334][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1864.645334][   T10]      net_rx_action+0x495/0xbe0
[ 1864.645334][   T10]      __do_softirq+0x1b5/0x7f6
[ 1864.645334][   T10] 
[ 1864.646981][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1864.646981][   T10]      netdev_get_by_index+0x5e/0x80
[ 1864.646981][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1864.646981][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1864.646981][   T10]      ip6_route_add+0x1c/0x140
[ 1864.646981][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1864.646981][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1864.646981][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1864.646981][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1864.646981][   T10]      netlink_rcv_skb+0x130/0x360
[ 1864.646981][   T10]      netlink_unicast+0x449/0x710
[ 1864.646981][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1864.646981][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1864.646981][   T10]      ___sys_sendmsg+0xee/0x170
[ 1864.646981][   T10]      __sys_sendmsg+0xcd/0x170
[ 1864.646981][   T10]      do_syscall_64+0xc6/0x1e0
[ 1864.646981][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1864.646981][   T10] 
[ 1864.649026][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1864.649026][   T10]      netdev_get_by_index+0x5e/0x80
[ 1864.649026][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1864.649026][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1864.649026][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1864.649026][   T10]      ipv6_add_addr+0x411/0x2000
[ 1864.649026][   T10]      inet6_addr_add+0x30e/0xa40
[ 1864.649026][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1864.649026][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1864.649026][   T10]      netlink_rcv_skb+0x130/0x360
[ 1864.649026][   T10]      netlink_unicast+0x449/0x710
[ 1864.649026][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1864.649026][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1864.649026][   T10]      ___sys_sendmsg+0xee/0x170
[ 1864.649026][   T10]      __sys_sendmsg+0xcd/0x170
[ 1864.649026][   T10]      do_syscall_64+0xc6/0x1e0
[ 1864.649026][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1864.649026][   T10] 
[ 1864.651025][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1864.651025][   T10]      netdev_get_by_index+0x5e/0x80
[ 1864.651025][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1864.651025][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1864.651025][   T10]      ip6_route_add+0x1c/0x140
[ 1864.651025][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1864.651025][   T10]      addrconf_add_dev+0xe2/0x170
[ 1864.651025][   T10]      inet6_addr_add+0x12f/0xa40
[ 1864.651025][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1864.651025][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1864.651025][   T10]      netlink_rcv_skb+0x130/0x360
[ 1864.651025][   T10]      netlink_unicast+0x449/0x710
[ 1864.651025][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1864.651025][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1864.651025][   T10]      ___sys_sendmsg+0xee/0x170
[ 1864.651025][   T10]      __sys_sendmsg+0xcd/0x170
[ 1864.651025][   T10]      do_syscall_64+0xc6/0x1e0
[ 1864.651025][   T10] 
[ 1864.652991][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1864.652991][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1864.652991][   T10]      ipv6_find_idev+0x102/0x170
[ 1864.652991][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1864.652991][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1864.652991][   T10]      netlink_rcv_skb+0x130/0x360
[ 1864.652991][   T10]      netlink_unicast+0x449/0x710
[ 1864.652991][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1864.652991][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1864.652991][   T10]      ___sys_sendmsg+0xee/0x170
[ 1864.652991][   T10]      __sys_sendmsg+0xcd/0x170
[ 1864.652991][   T10]      do_syscall_64+0xc6/0x1e0
[ 1864.652991][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1864.652991][   T10] 
[ 1864.654550][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1864.654550][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1864.654550][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1864.654550][   T10]      ipv6_find_idev+0x102/0x170
[ 1864.654550][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1864.654550][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1864.654550][   T10]      netlink_rcv_skb+0x130/0x360
[ 1864.654550][   T10]      netlink_unicast+0x449/0x710
[ 1864.654550][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1864.654550][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1864.654550][   T10]      ___sys_sendmsg+0xee/0x170
[ 1864.654550][   T10]      __sys_sendmsg+0xcd/0x170
[ 1864.654550][   T10]      do_syscall_64+0xc6/0x1e0
[ 1864.654550][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1864.654550][   T10] 
[ 1874.753787][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1874.754240][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1874.754240][   T10]      dst_init+0x84/0x4a0
[ 1874.754240][   T10]      dst_alloc+0x97/0x150
[ 1874.754240][   T10]      ip6_dst_alloc+0x23/0x90
[ 1874.754240][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1874.754240][   T10]      ip6_pol_route+0x56f/0x840
[ 1874.754240][   T10]      fib6_rule_lookup+0x456/0x630
[ 1874.754240][   T10]      ip6_route_input+0x59c/0xa50
[ 1874.754240][   T10]      ipv6_rcv+0x397/0x810
[ 1874.754240][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1874.754240][   T10]      process_backlog+0x101/0x620
[ 1874.754240][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1874.754240][   T10]      net_rx_action+0x495/0xbe0
[ 1874.754240][   T10]      __do_softirq+0x1b5/0x7f6
[ 1874.754240][   T10] 
[ 1874.755945][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1874.755945][   T10]      netdev_get_by_index+0x5e/0x80
[ 1874.755945][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1874.755945][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1874.755945][   T10]      ip6_route_add+0x1c/0x140
[ 1874.755945][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1874.755945][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1874.755945][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1874.755945][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1874.755945][   T10]      netlink_rcv_skb+0x130/0x360
[ 1874.755945][   T10]      netlink_unicast+0x449/0x710
[ 1874.755945][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1874.755945][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1874.755945][   T10]      ___sys_sendmsg+0xee/0x170
[ 1874.755945][   T10]      __sys_sendmsg+0xcd/0x170
[ 1874.755945][   T10]      do_syscall_64+0xc6/0x1e0
[ 1874.755945][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1874.755945][   T10] 
[ 1874.757955][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1874.757955][   T10]      netdev_get_by_index+0x5e/0x80
[ 1874.757955][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1874.757955][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1874.757955][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1874.757955][   T10]      ipv6_add_addr+0x411/0x2000
[ 1874.757955][   T10]      inet6_addr_add+0x30e/0xa40
[ 1874.757955][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1874.757955][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1874.757955][   T10]      netlink_rcv_skb+0x130/0x360
[ 1874.757955][   T10]      netlink_unicast+0x449/0x710
[ 1874.757955][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1874.757955][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1874.757955][   T10]      ___sys_sendmsg+0xee/0x170
[ 1874.757955][   T10]      __sys_sendmsg+0xcd/0x170
[ 1874.757955][   T10]      do_syscall_64+0xc6/0x1e0
[ 1874.757955][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1874.757955][   T10] 
[ 1874.759964][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1874.759964][   T10]      netdev_get_by_index+0x5e/0x80
[ 1874.759964][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1874.759964][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1874.759964][   T10]      ip6_route_add+0x1c/0x140
[ 1874.759964][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1874.759964][   T10]      addrconf_add_dev+0xe2/0x170
[ 1874.759964][   T10]      inet6_addr_add+0x12f/0xa40
[ 1874.759964][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1874.759964][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1874.759964][   T10]      netlink_rcv_skb+0x130/0x360
[ 1874.759964][   T10]      netlink_unicast+0x449/0x710
[ 1874.759964][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1874.759964][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1874.759964][   T10]      ___sys_sendmsg+0xee/0x170
[ 1874.759964][   T10]      __sys_sendmsg+0xcd/0x170
[ 1874.759964][   T10]      do_syscall_64+0xc6/0x1e0
[ 1874.759964][   T10] 
[ 1874.761939][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1874.761939][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1874.761939][   T10]      ipv6_find_idev+0x102/0x170
[ 1874.761939][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1874.761939][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1874.761939][   T10]      netlink_rcv_skb+0x130/0x360
[ 1874.761939][   T10]      netlink_unicast+0x449/0x710
[ 1874.761939][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1874.761939][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1874.761939][   T10]      ___sys_sendmsg+0xee/0x170
[ 1874.761939][   T10]      __sys_sendmsg+0xcd/0x170
[ 1874.761939][   T10]      do_syscall_64+0xc6/0x1e0
[ 1874.761939][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1874.761939][   T10] 
[ 1874.763491][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1874.763491][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1874.763491][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1874.763491][   T10]      ipv6_find_idev+0x102/0x170
[ 1874.763491][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1874.763491][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1874.763491][   T10]      netlink_rcv_skb+0x130/0x360
[ 1874.763491][   T10]      netlink_unicast+0x449/0x710
[ 1874.763491][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1874.763491][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1874.763491][   T10]      ___sys_sendmsg+0xee/0x170
[ 1874.763491][   T10]      __sys_sendmsg+0xcd/0x170
[ 1874.763491][   T10]      do_syscall_64+0xc6/0x1e0
[ 1874.763491][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1874.763491][   T10] 
[ 1874.765192][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1874.765455][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1874.765455][   T10]      dst_init+0x84/0x4a0
[ 1874.765455][   T10]      dst_alloc+0x97/0x150
[ 1874.765455][   T10]      ip6_dst_alloc+0x23/0x90
[ 1874.765455][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1874.765455][   T10]      ip6_pol_route+0x56f/0x840
[ 1874.765455][   T10]      fib6_rule_lookup+0x456/0x630
[ 1874.765455][   T10]      ip6_route_input+0x59c/0xa50
[ 1874.765455][   T10]      ipv6_rcv+0x397/0x810
[ 1874.765455][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1874.765455][   T10]      process_backlog+0x101/0x620
[ 1874.765455][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1874.765455][   T10]      net_rx_action+0x495/0xbe0
[ 1874.765455][   T10]      __do_softirq+0x1b5/0x7f6
[ 1874.765455][   T10] 
[ 1874.767093][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1874.767093][   T10]      netdev_get_by_index+0x5e/0x80
[ 1874.767093][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1874.767093][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1874.767093][   T10]      ip6_route_add+0x1c/0x140
[ 1874.767093][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1874.767093][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1874.767093][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1874.767093][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1874.767093][   T10]      netlink_rcv_skb+0x130/0x360
[ 1874.767093][   T10]      netlink_unicast+0x449/0x710
[ 1874.767093][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1874.767093][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1874.767093][   T10]      ___sys_sendmsg+0xee/0x170
[ 1874.767093][   T10]      __sys_sendmsg+0xcd/0x170
[ 1874.767093][   T10]      do_syscall_64+0xc6/0x1e0
[ 1874.767093][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1874.767093][   T10] 
[ 1874.769090][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1874.769090][   T10]      netdev_get_by_index+0x5e/0x80
[ 1874.769090][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1874.769090][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1874.769090][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1874.769090][   T10]      ipv6_add_addr+0x411/0x2000
[ 1874.769090][   T10]      inet6_addr_add+0x30e/0xa40
[ 1874.769090][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1874.769090][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1874.769090][   T10]      netlink_rcv_skb+0x130/0x360
[ 1874.769090][   T10]      netlink_unicast+0x449/0x710
[ 1874.769090][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1874.769090][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1874.769090][   T10]      ___sys_sendmsg+0xee/0x170
[ 1874.769090][   T10]      __sys_sendmsg+0xcd/0x170
[ 1874.769090][   T10]      do_syscall_64+0xc6/0x1e0
[ 1874.769090][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1874.769090][   T10] 
[ 1874.771089][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1874.771089][   T10]      netdev_get_by_index+0x5e/0x80
[ 1874.771089][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1874.771089][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1874.771089][   T10]      ip6_route_add+0x1c/0x140
[ 1874.771089][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1874.771089][   T10]      addrconf_add_dev+0xe2/0x170
[ 1874.771089][   T10]      inet6_addr_add+0x12f/0xa40
[ 1874.771089][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1874.771089][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1874.771089][   T10]      netlink_rcv_skb+0x130/0x360
[ 1874.771089][   T10]      netlink_unicast+0x449/0x710
[ 1874.771089][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1874.771089][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1874.771089][   T10]      ___sys_sendmsg+0xee/0x170
[ 1874.771089][   T10]      __sys_sendmsg+0xcd/0x170
[ 1874.771089][   T10]      do_syscall_64+0xc6/0x1e0
[ 1874.771089][   T10] 
[ 1874.773050][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1874.773050][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1874.773050][   T10]      ipv6_find_idev+0x102/0x170
[ 1874.773050][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1874.773050][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1874.773050][   T10]      netlink_rcv_skb+0x130/0x360
[ 1874.773050][   T10]      netlink_unicast+0x449/0x710
[ 1874.773050][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1874.773050][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1874.773050][   T10]      ___sys_sendmsg+0xee/0x170
[ 1874.773050][   T10]      __sys_sendmsg+0xcd/0x170
[ 1874.773050][   T10]      do_syscall_64+0xc6/0x1e0
[ 1874.773050][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1874.773050][   T10] 
[ 1874.774592][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1874.774592][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1874.774592][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1874.774592][   T10]      ipv6_find_idev+0x102/0x170
[ 1874.774592][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1874.774592][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1874.774592][   T10]      netlink_rcv_skb+0x130/0x360
[ 1874.774592][   T10]      netlink_unicast+0x449/0x710
[ 1874.774592][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1874.774592][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1874.774592][   T10]      ___sys_sendmsg+0xee/0x170
[ 1874.774592][   T10]      __sys_sendmsg+0xcd/0x170
[ 1874.774592][   T10]      do_syscall_64+0xc6/0x1e0
[ 1874.774592][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1874.774592][   T10] 
[ 1885.017775][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1885.018238][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1885.018238][   T10]      dst_init+0x84/0x4a0
[ 1885.018238][   T10]      dst_alloc+0x97/0x150
[ 1885.018238][   T10]      ip6_dst_alloc+0x23/0x90
[ 1885.018238][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1885.018238][   T10]      ip6_pol_route+0x56f/0x840
[ 1885.018238][   T10]      fib6_rule_lookup+0x456/0x630
[ 1885.018238][   T10]      ip6_route_input+0x59c/0xa50
[ 1885.018238][   T10]      ipv6_rcv+0x397/0x810
[ 1885.018238][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1885.018238][   T10]      process_backlog+0x101/0x620
[ 1885.018238][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1885.018238][   T10]      net_rx_action+0x495/0xbe0
[ 1885.018238][   T10]      __do_softirq+0x1b5/0x7f6
[ 1885.018238][   T10] 
[ 1885.019929][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1885.019929][   T10]      netdev_get_by_index+0x5e/0x80
[ 1885.019929][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1885.019929][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1885.019929][   T10]      ip6_route_add+0x1c/0x140
[ 1885.019929][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1885.019929][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1885.019929][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1885.019929][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1885.019929][   T10]      netlink_rcv_skb+0x130/0x360
[ 1885.019929][   T10]      netlink_unicast+0x449/0x710
[ 1885.019929][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1885.019929][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1885.019929][   T10]      ___sys_sendmsg+0xee/0x170
[ 1885.019929][   T10]      __sys_sendmsg+0xcd/0x170
[ 1885.019929][   T10]      do_syscall_64+0xc6/0x1e0
[ 1885.019929][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1885.019929][   T10] 
[ 1885.021943][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1885.021943][   T10]      netdev_get_by_index+0x5e/0x80
[ 1885.021943][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1885.021943][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1885.021943][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1885.021943][   T10]      ipv6_add_addr+0x411/0x2000
[ 1885.021943][   T10]      inet6_addr_add+0x30e/0xa40
[ 1885.021943][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1885.021943][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1885.021943][   T10]      netlink_rcv_skb+0x130/0x360
[ 1885.021943][   T10]      netlink_unicast+0x449/0x710
[ 1885.021943][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1885.021943][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1885.021943][   T10]      ___sys_sendmsg+0xee/0x170
[ 1885.021943][   T10]      __sys_sendmsg+0xcd/0x170
[ 1885.021943][   T10]      do_syscall_64+0xc6/0x1e0
[ 1885.021943][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1885.021943][   T10] 
[ 1885.023964][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1885.023964][   T10]      netdev_get_by_index+0x5e/0x80
[ 1885.023964][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1885.023964][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1885.023964][   T10]      ip6_route_add+0x1c/0x140
[ 1885.023964][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1885.023964][   T10]      addrconf_add_dev+0xe2/0x170
[ 1885.023964][   T10]      inet6_addr_add+0x12f/0xa40
[ 1885.023964][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1885.023964][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1885.023964][   T10]      netlink_rcv_skb+0x130/0x360
[ 1885.023964][   T10]      netlink_unicast+0x449/0x710
[ 1885.023964][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1885.023964][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1885.023964][   T10]      ___sys_sendmsg+0xee/0x170
[ 1885.023964][   T10]      __sys_sendmsg+0xcd/0x170
[ 1885.023964][   T10]      do_syscall_64+0xc6/0x1e0
[ 1885.023964][   T10] 
[ 1885.025944][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1885.025944][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1885.025944][   T10]      ipv6_find_idev+0x102/0x170
[ 1885.025944][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1885.025944][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1885.025944][   T10]      netlink_rcv_skb+0x130/0x360
[ 1885.025944][   T10]      netlink_unicast+0x449/0x710
[ 1885.025944][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1885.025944][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1885.025944][   T10]      ___sys_sendmsg+0xee/0x170
[ 1885.025944][   T10]      __sys_sendmsg+0xcd/0x170
[ 1885.025944][   T10]      do_syscall_64+0xc6/0x1e0
[ 1885.025944][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1885.025944][   T10] 
[ 1885.027495][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1885.027495][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1885.027495][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1885.027495][   T10]      ipv6_find_idev+0x102/0x170
[ 1885.027495][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1885.027495][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1885.027495][   T10]      netlink_rcv_skb+0x130/0x360
[ 1885.027495][   T10]      netlink_unicast+0x449/0x710
[ 1885.027495][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1885.027495][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1885.027495][   T10]      ___sys_sendmsg+0xee/0x170
[ 1885.027495][   T10]      __sys_sendmsg+0xcd/0x170
[ 1885.027495][   T10]      do_syscall_64+0xc6/0x1e0
[ 1885.027495][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1885.027495][   T10] 
[ 1885.029190][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1885.029439][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1885.029439][   T10]      dst_init+0x84/0x4a0
[ 1885.029439][   T10]      dst_alloc+0x97/0x150
[ 1885.029439][   T10]      ip6_dst_alloc+0x23/0x90
[ 1885.029439][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1885.029439][   T10]      ip6_pol_route+0x56f/0x840
[ 1885.029439][   T10]      fib6_rule_lookup+0x456/0x630
[ 1885.029439][   T10]      ip6_route_input+0x59c/0xa50
[ 1885.029439][   T10]      ipv6_rcv+0x397/0x810
[ 1885.029439][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1885.029439][   T10]      process_backlog+0x101/0x620
[ 1885.029439][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1885.029439][   T10]      net_rx_action+0x495/0xbe0
[ 1885.029439][   T10]      __do_softirq+0x1b5/0x7f6
[ 1885.029439][   T10] 
[ 1885.031090][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1885.031090][   T10]      netdev_get_by_index+0x5e/0x80
[ 1885.031090][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1885.031090][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1885.031090][   T10]      ip6_route_add+0x1c/0x140
[ 1885.031090][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1885.031090][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1885.031090][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1885.031090][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1885.031090][   T10]      netlink_rcv_skb+0x130/0x360
[ 1885.031090][   T10]      netlink_unicast+0x449/0x710
[ 1885.031090][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1885.031090][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1885.031090][   T10]      ___sys_sendmsg+0xee/0x170
[ 1885.031090][   T10]      __sys_sendmsg+0xcd/0x170
[ 1885.031090][   T10]      do_syscall_64+0xc6/0x1e0
[ 1885.031090][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1885.031090][   T10] 
[ 1885.033100][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1885.033100][   T10]      netdev_get_by_index+0x5e/0x80
[ 1885.033100][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1885.033100][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1885.033100][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1885.033100][   T10]      ipv6_add_addr+0x411/0x2000
[ 1885.033100][   T10]      inet6_addr_add+0x30e/0xa40
[ 1885.033100][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1885.033100][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1885.033100][   T10]      netlink_rcv_skb+0x130/0x360
[ 1885.033100][   T10]      netlink_unicast+0x449/0x710
[ 1885.033100][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1885.033100][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1885.033100][   T10]      ___sys_sendmsg+0xee/0x170
[ 1885.033100][   T10]      __sys_sendmsg+0xcd/0x170
[ 1885.033100][   T10]      do_syscall_64+0xc6/0x1e0
[ 1885.033100][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1885.033100][   T10] 
[ 1885.035116][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1885.035116][   T10]      netdev_get_by_index+0x5e/0x80
[ 1885.035116][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1885.035116][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1885.035116][   T10]      ip6_route_add+0x1c/0x140
[ 1885.035116][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1885.035116][   T10]      addrconf_add_dev+0xe2/0x170
[ 1885.035116][   T10]      inet6_addr_add+0x12f/0xa40
[ 1885.035116][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1885.035116][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1885.035116][   T10]      netlink_rcv_skb+0x130/0x360
[ 1885.035116][   T10]      netlink_unicast+0x449/0x710
[ 1885.035116][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1885.035116][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1885.035116][   T10]      ___sys_sendmsg+0xee/0x170
[ 1885.035116][   T10]      __sys_sendmsg+0xcd/0x170
[ 1885.035116][   T10]      do_syscall_64+0xc6/0x1e0
[ 1885.035116][   T10] 
[ 1885.037090][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1885.037090][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1885.037090][   T10]      ipv6_find_idev+0x102/0x170
[ 1885.037090][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1885.037090][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1885.037090][   T10]      netlink_rcv_skb+0x130/0x360
[ 1885.037090][   T10]      netlink_unicast+0x449/0x710
[ 1885.037090][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1885.037090][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1885.037090][   T10]      ___sys_sendmsg+0xee/0x170
[ 1885.037090][   T10]      __sys_sendmsg+0xcd/0x170
[ 1885.037090][   T10]      do_syscall_64+0xc6/0x1e0
[ 1885.037090][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1885.037090][   T10] 
[ 1885.038638][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1885.038638][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1885.038638][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1885.038638][   T10]      ipv6_find_idev+0x102/0x170
[ 1885.038638][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1885.038638][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1885.038638][   T10]      netlink_rcv_skb+0x130/0x360
[ 1885.038638][   T10]      netlink_unicast+0x449/0x710
[ 1885.038638][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1885.038638][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1885.038638][   T10]      ___sys_sendmsg+0xee/0x170
[ 1885.038638][   T10]      __sys_sendmsg+0xcd/0x170
[ 1885.038638][   T10]      do_syscall_64+0xc6/0x1e0
[ 1885.038638][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1885.038638][   T10] 
[ 1895.113723][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1895.114141][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1895.114141][   T10]      dst_init+0x84/0x4a0
[ 1895.114141][   T10]      dst_alloc+0x97/0x150
[ 1895.114141][   T10]      ip6_dst_alloc+0x23/0x90
[ 1895.114141][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1895.114141][   T10]      ip6_pol_route+0x56f/0x840
[ 1895.114141][   T10]      fib6_rule_lookup+0x456/0x630
[ 1895.114141][   T10]      ip6_route_input+0x59c/0xa50
[ 1895.114141][   T10]      ipv6_rcv+0x397/0x810
[ 1895.114141][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1895.114141][   T10]      process_backlog+0x101/0x620
[ 1895.114141][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1895.114141][   T10]      net_rx_action+0x495/0xbe0
[ 1895.114141][   T10]      __do_softirq+0x1b5/0x7f6
[ 1895.114141][   T10] 
[ 1895.115880][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1895.115880][   T10]      netdev_get_by_index+0x5e/0x80
[ 1895.115880][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1895.115880][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1895.115880][   T10]      ip6_route_add+0x1c/0x140
[ 1895.115880][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1895.115880][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1895.115880][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1895.115880][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1895.115880][   T10]      netlink_rcv_skb+0x130/0x360
[ 1895.115880][   T10]      netlink_unicast+0x449/0x710
[ 1895.115880][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1895.115880][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1895.115880][   T10]      ___sys_sendmsg+0xee/0x170
[ 1895.115880][   T10]      __sys_sendmsg+0xcd/0x170
[ 1895.115880][   T10]      do_syscall_64+0xc6/0x1e0
[ 1895.115880][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1895.115880][   T10] 
[ 1895.117931][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1895.117931][   T10]      netdev_get_by_index+0x5e/0x80
[ 1895.117931][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1895.117931][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1895.117931][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1895.117931][   T10]      ipv6_add_addr+0x411/0x2000
[ 1895.117931][   T10]      inet6_addr_add+0x30e/0xa40
[ 1895.117931][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1895.117931][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1895.117931][   T10]      netlink_rcv_skb+0x130/0x360
[ 1895.117931][   T10]      netlink_unicast+0x449/0x710
[ 1895.117931][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1895.117931][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1895.117931][   T10]      ___sys_sendmsg+0xee/0x170
[ 1895.117931][   T10]      __sys_sendmsg+0xcd/0x170
[ 1895.117931][   T10]      do_syscall_64+0xc6/0x1e0
[ 1895.117931][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1895.117931][   T10] 
[ 1895.119991][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1895.119991][   T10]      netdev_get_by_index+0x5e/0x80
[ 1895.119991][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1895.119991][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1895.119991][   T10]      ip6_route_add+0x1c/0x140
[ 1895.119991][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1895.119991][   T10]      addrconf_add_dev+0xe2/0x170
[ 1895.119991][   T10]      inet6_addr_add+0x12f/0xa40
[ 1895.119991][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1895.119991][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1895.119991][   T10]      netlink_rcv_skb+0x130/0x360
[ 1895.119991][   T10]      netlink_unicast+0x449/0x710
[ 1895.119991][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1895.119991][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1895.119991][   T10]      ___sys_sendmsg+0xee/0x170
[ 1895.119991][   T10]      __sys_sendmsg+0xcd/0x170
[ 1895.119991][   T10]      do_syscall_64+0xc6/0x1e0
[ 1895.119991][   T10] 
[ 1895.122004][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1895.122004][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1895.122004][   T10]      ipv6_find_idev+0x102/0x170
[ 1895.122004][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1895.122004][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1895.122004][   T10]      netlink_rcv_skb+0x130/0x360
[ 1895.122004][   T10]      netlink_unicast+0x449/0x710
[ 1895.122004][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1895.122004][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1895.122004][   T10]      ___sys_sendmsg+0xee/0x170
[ 1895.122004][   T10]      __sys_sendmsg+0xcd/0x170
[ 1895.122004][   T10]      do_syscall_64+0xc6/0x1e0
[ 1895.122004][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1895.122004][   T10] 
[ 1895.123598][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1895.123598][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1895.123598][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1895.123598][   T10]      ipv6_find_idev+0x102/0x170
[ 1895.123598][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1895.123598][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1895.123598][   T10]      netlink_rcv_skb+0x130/0x360
[ 1895.123598][   T10]      netlink_unicast+0x449/0x710
[ 1895.123598][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1895.123598][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1895.123598][   T10]      ___sys_sendmsg+0xee/0x170
[ 1895.123598][   T10]      __sys_sendmsg+0xcd/0x170
[ 1895.123598][   T10]      do_syscall_64+0xc6/0x1e0
[ 1895.123598][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1895.123598][   T10] 
[ 1895.125335][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1895.125588][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1895.125588][   T10]      dst_init+0x84/0x4a0
[ 1895.125588][   T10]      dst_alloc+0x97/0x150
[ 1895.125588][   T10]      ip6_dst_alloc+0x23/0x90
[ 1895.125588][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1895.125588][   T10]      ip6_pol_route+0x56f/0x840
[ 1895.125588][   T10]      fib6_rule_lookup+0x456/0x630
[ 1895.125588][   T10]      ip6_route_input+0x59c/0xa50
[ 1895.125588][   T10]      ipv6_rcv+0x397/0x810
[ 1895.125588][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1895.125588][   T10]      process_backlog+0x101/0x620
[ 1895.125588][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1895.125588][   T10]      net_rx_action+0x495/0xbe0
[ 1895.125588][   T10]      __do_softirq+0x1b5/0x7f6
[ 1895.125588][   T10] 
[ 1895.127270][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1895.127270][   T10]      netdev_get_by_index+0x5e/0x80
[ 1895.127270][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1895.127270][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1895.127270][   T10]      ip6_route_add+0x1c/0x140
[ 1895.127270][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1895.127270][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1895.127270][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1895.127270][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1895.127270][   T10]      netlink_rcv_skb+0x130/0x360
[ 1895.127270][   T10]      netlink_unicast+0x449/0x710
[ 1895.127270][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1895.127270][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1895.127270][   T10]      ___sys_sendmsg+0xee/0x170
[ 1895.127270][   T10]      __sys_sendmsg+0xcd/0x170
[ 1895.127270][   T10]      do_syscall_64+0xc6/0x1e0
[ 1895.127270][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1895.127270][   T10] 
[ 1895.129317][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1895.129317][   T10]      netdev_get_by_index+0x5e/0x80
[ 1895.129317][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1895.129317][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1895.129317][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1895.129317][   T10]      ipv6_add_addr+0x411/0x2000
[ 1895.129317][   T10]      inet6_addr_add+0x30e/0xa40
[ 1895.129317][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1895.129317][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1895.129317][   T10]      netlink_rcv_skb+0x130/0x360
[ 1895.129317][   T10]      netlink_unicast+0x449/0x710
[ 1895.129317][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1895.129317][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1895.129317][   T10]      ___sys_sendmsg+0xee/0x170
[ 1895.129317][   T10]      __sys_sendmsg+0xcd/0x170
[ 1895.129317][   T10]      do_syscall_64+0xc6/0x1e0
[ 1895.129317][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1895.129317][   T10] 
[ 1895.131369][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1895.131369][   T10]      netdev_get_by_index+0x5e/0x80
[ 1895.131369][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1895.131369][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1895.131369][   T10]      ip6_route_add+0x1c/0x140
[ 1895.131369][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1895.131369][   T10]      addrconf_add_dev+0xe2/0x170
[ 1895.131369][   T10]      inet6_addr_add+0x12f/0xa40
[ 1895.131369][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1895.131369][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1895.131369][   T10]      netlink_rcv_skb+0x130/0x360
[ 1895.131369][   T10]      netlink_unicast+0x449/0x710
[ 1895.131369][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1895.131369][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1895.131369][   T10]      ___sys_sendmsg+0xee/0x170
[ 1895.131369][   T10]      __sys_sendmsg+0xcd/0x170
[ 1895.131369][   T10]      do_syscall_64+0xc6/0x1e0
[ 1895.131369][   T10] 
[ 1895.133383][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1895.133383][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1895.133383][   T10]      ipv6_find_idev+0x102/0x170
[ 1895.133383][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1895.133383][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1895.133383][   T10]      netlink_rcv_skb+0x130/0x360
[ 1895.133383][   T10]      netlink_unicast+0x449/0x710
[ 1895.133383][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1895.133383][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1895.133383][   T10]      ___sys_sendmsg+0xee/0x170
[ 1895.133383][   T10]      __sys_sendmsg+0xcd/0x170
[ 1895.133383][   T10]      do_syscall_64+0xc6/0x1e0
[ 1895.133383][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1895.133383][   T10] 
[ 1895.134963][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1895.134963][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1895.134963][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1895.134963][   T10]      ipv6_find_idev+0x102/0x170
[ 1895.134963][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1895.134963][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1895.134963][   T10]      netlink_rcv_skb+0x130/0x360
[ 1895.134963][   T10]      netlink_unicast+0x449/0x710
[ 1895.134963][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1895.134963][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1895.134963][   T10]      ___sys_sendmsg+0xee/0x170
[ 1895.134963][   T10]      __sys_sendmsg+0xcd/0x170
[ 1895.134963][   T10]      do_syscall_64+0xc6/0x1e0
[ 1895.134963][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1895.134963][   T10] 
[ 1905.137806][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1905.138208][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1905.138208][   T10]      dst_init+0x84/0x4a0
[ 1905.138208][   T10]      dst_alloc+0x97/0x150
[ 1905.138208][   T10]      ip6_dst_alloc+0x23/0x90
[ 1905.138208][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1905.138208][   T10]      ip6_pol_route+0x56f/0x840
[ 1905.138208][   T10]      fib6_rule_lookup+0x456/0x630
[ 1905.138208][   T10]      ip6_route_input+0x59c/0xa50
[ 1905.138208][   T10]      ipv6_rcv+0x397/0x810
[ 1905.138208][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1905.138208][   T10]      process_backlog+0x101/0x620
[ 1905.138208][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1905.138208][   T10]      net_rx_action+0x495/0xbe0
[ 1905.138208][   T10]      __do_softirq+0x1b5/0x7f6
[ 1905.138208][   T10] 
[ 1905.139939][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1905.139939][   T10]      netdev_get_by_index+0x5e/0x80
[ 1905.139939][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1905.139939][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1905.139939][   T10]      ip6_route_add+0x1c/0x140
[ 1905.139939][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1905.139939][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1905.139939][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1905.139939][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1905.139939][   T10]      netlink_rcv_skb+0x130/0x360
[ 1905.139939][   T10]      netlink_unicast+0x449/0x710
[ 1905.139939][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1905.139939][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1905.139939][   T10]      ___sys_sendmsg+0xee/0x170
[ 1905.139939][   T10]      __sys_sendmsg+0xcd/0x170
[ 1905.139939][   T10]      do_syscall_64+0xc6/0x1e0
[ 1905.139939][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1905.139939][   T10] 
[ 1905.142026][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1905.142026][   T10]      netdev_get_by_index+0x5e/0x80
[ 1905.142026][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1905.142026][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1905.142026][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1905.142026][   T10]      ipv6_add_addr+0x411/0x2000
[ 1905.142026][   T10]      inet6_addr_add+0x30e/0xa40
[ 1905.142026][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1905.142026][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1905.142026][   T10]      netlink_rcv_skb+0x130/0x360
[ 1905.142026][   T10]      netlink_unicast+0x449/0x710
[ 1905.142026][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1905.142026][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1905.142026][   T10]      ___sys_sendmsg+0xee/0x170
[ 1905.142026][   T10]      __sys_sendmsg+0xcd/0x170
[ 1905.142026][   T10]      do_syscall_64+0xc6/0x1e0
[ 1905.142026][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1905.142026][   T10] 
[ 1905.144088][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1905.144088][   T10]      netdev_get_by_index+0x5e/0x80
[ 1905.144088][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1905.144088][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1905.144088][   T10]      ip6_route_add+0x1c/0x140
[ 1905.144088][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1905.144088][   T10]      addrconf_add_dev+0xe2/0x170
[ 1905.144088][   T10]      inet6_addr_add+0x12f/0xa40
[ 1905.144088][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1905.144088][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1905.144088][   T10]      netlink_rcv_skb+0x130/0x360
[ 1905.144088][   T10]      netlink_unicast+0x449/0x710
[ 1905.144088][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1905.144088][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1905.144088][   T10]      ___sys_sendmsg+0xee/0x170
[ 1905.144088][   T10]      __sys_sendmsg+0xcd/0x170
[ 1905.144088][   T10]      do_syscall_64+0xc6/0x1e0
[ 1905.144088][   T10] 
[ 1905.146114][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1905.146114][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1905.146114][   T10]      ipv6_find_idev+0x102/0x170
[ 1905.146114][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1905.146114][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1905.146114][   T10]      netlink_rcv_skb+0x130/0x360
[ 1905.146114][   T10]      netlink_unicast+0x449/0x710
[ 1905.146114][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1905.146114][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1905.146114][   T10]      ___sys_sendmsg+0xee/0x170
[ 1905.146114][   T10]      __sys_sendmsg+0xcd/0x170
[ 1905.146114][   T10]      do_syscall_64+0xc6/0x1e0
[ 1905.146114][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1905.146114][   T10] 
[ 1905.147699][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1905.147699][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1905.147699][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1905.147699][   T10]      ipv6_find_idev+0x102/0x170
[ 1905.147699][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1905.147699][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1905.147699][   T10]      netlink_rcv_skb+0x130/0x360
[ 1905.147699][   T10]      netlink_unicast+0x449/0x710
[ 1905.147699][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1905.147699][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1905.147699][   T10]      ___sys_sendmsg+0xee/0x170
[ 1905.147699][   T10]      __sys_sendmsg+0xcd/0x170
[ 1905.147699][   T10]      do_syscall_64+0xc6/0x1e0
[ 1905.147699][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1905.147699][   T10] 
[ 1905.149439][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1905.149696][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1905.149696][   T10]      dst_init+0x84/0x4a0
[ 1905.149696][   T10]      dst_alloc+0x97/0x150
[ 1905.149696][   T10]      ip6_dst_alloc+0x23/0x90
[ 1905.149696][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1905.149696][   T10]      ip6_pol_route+0x56f/0x840
[ 1905.149696][   T10]      fib6_rule_lookup+0x456/0x630
[ 1905.149696][   T10]      ip6_route_input+0x59c/0xa50
[ 1905.149696][   T10]      ipv6_rcv+0x397/0x810
[ 1905.149696][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1905.149696][   T10]      process_backlog+0x101/0x620
[ 1905.149696][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1905.149696][   T10]      net_rx_action+0x495/0xbe0
[ 1905.149696][   T10]      __do_softirq+0x1b5/0x7f6
[ 1905.149696][   T10] 
[ 1905.151379][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1905.151379][   T10]      netdev_get_by_index+0x5e/0x80
[ 1905.151379][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1905.151379][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1905.151379][   T10]      ip6_route_add+0x1c/0x140
[ 1905.151379][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1905.151379][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1905.151379][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1905.151379][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1905.151379][   T10]      netlink_rcv_skb+0x130/0x360
[ 1905.151379][   T10]      netlink_unicast+0x449/0x710
[ 1905.151379][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1905.151379][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1905.151379][   T10]      ___sys_sendmsg+0xee/0x170
[ 1905.151379][   T10]      __sys_sendmsg+0xcd/0x170
[ 1905.151379][   T10]      do_syscall_64+0xc6/0x1e0
[ 1905.151379][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1905.151379][   T10] 
[ 1905.153440][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1905.153440][   T10]      netdev_get_by_index+0x5e/0x80
[ 1905.153440][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1905.153440][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1905.153440][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1905.153440][   T10]      ipv6_add_addr+0x411/0x2000
[ 1905.153440][   T10]      inet6_addr_add+0x30e/0xa40
[ 1905.153440][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1905.153440][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1905.153440][   T10]      netlink_rcv_skb+0x130/0x360
[ 1905.153440][   T10]      netlink_unicast+0x449/0x710
[ 1905.153440][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1905.153440][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1905.153440][   T10]      ___sys_sendmsg+0xee/0x170
[ 1905.153440][   T10]      __sys_sendmsg+0xcd/0x170
[ 1905.153440][   T10]      do_syscall_64+0xc6/0x1e0
[ 1905.153440][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1905.153440][   T10] 
[ 1905.155491][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1905.155491][   T10]      netdev_get_by_index+0x5e/0x80
[ 1905.155491][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1905.155491][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1905.155491][   T10]      ip6_route_add+0x1c/0x140
[ 1905.155491][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1905.155491][   T10]      addrconf_add_dev+0xe2/0x170
[ 1905.155491][   T10]      inet6_addr_add+0x12f/0xa40
[ 1905.155491][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1905.155491][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1905.155491][   T10]      netlink_rcv_skb+0x130/0x360
[ 1905.155491][   T10]      netlink_unicast+0x449/0x710
[ 1905.155491][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1905.155491][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1905.155491][   T10]      ___sys_sendmsg+0xee/0x170
[ 1905.155491][   T10]      __sys_sendmsg+0xcd/0x170
[ 1905.155491][   T10]      do_syscall_64+0xc6/0x1e0
[ 1905.155491][   T10] 
[ 1905.158047][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1905.158047][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1905.158047][   T10]      ipv6_find_idev+0x102/0x170
[ 1905.158047][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1905.158047][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1905.158047][   T10]      netlink_rcv_skb+0x130/0x360
[ 1905.158047][   T10]      netlink_unicast+0x449/0x710
[ 1905.158047][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1905.158047][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1905.158047][   T10]      ___sys_sendmsg+0xee/0x170
[ 1905.158047][   T10]      __sys_sendmsg+0xcd/0x170
[ 1905.158047][   T10]      do_syscall_64+0xc6/0x1e0
[ 1905.158047][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1905.158047][   T10] 
[ 1905.159639][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1905.159639][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1905.159639][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1905.159639][   T10]      ipv6_find_idev+0x102/0x170
[ 1905.159639][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1905.159639][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1905.159639][   T10]      netlink_rcv_skb+0x130/0x360
[ 1905.159639][   T10]      netlink_unicast+0x449/0x710
[ 1905.159639][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1905.159639][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1905.159639][   T10]      ___sys_sendmsg+0xee/0x170
[ 1905.159639][   T10]      __sys_sendmsg+0xcd/0x170
[ 1905.159639][   T10]      do_syscall_64+0xc6/0x1e0
[ 1905.159639][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1905.159639][   T10] 
[ 1915.409723][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1915.410116][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1915.410116][   T10]      dst_init+0x84/0x4a0
[ 1915.410116][   T10]      dst_alloc+0x97/0x150
[ 1915.410116][   T10]      ip6_dst_alloc+0x23/0x90
[ 1915.410116][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1915.410116][   T10]      ip6_pol_route+0x56f/0x840
[ 1915.410116][   T10]      fib6_rule_lookup+0x456/0x630
[ 1915.410116][   T10]      ip6_route_input+0x59c/0xa50
[ 1915.410116][   T10]      ipv6_rcv+0x397/0x810
[ 1915.410116][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1915.410116][   T10]      process_backlog+0x101/0x620
[ 1915.410116][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1915.410116][   T10]      net_rx_action+0x495/0xbe0
[ 1915.410116][   T10]      __do_softirq+0x1b5/0x7f6
[ 1915.410116][   T10] 
[ 1915.411843][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1915.411843][   T10]      netdev_get_by_index+0x5e/0x80
[ 1915.411843][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1915.411843][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1915.411843][   T10]      ip6_route_add+0x1c/0x140
[ 1915.411843][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1915.411843][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1915.411843][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1915.411843][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1915.411843][   T10]      netlink_rcv_skb+0x130/0x360
[ 1915.411843][   T10]      netlink_unicast+0x449/0x710
[ 1915.411843][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1915.411843][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1915.411843][   T10]      ___sys_sendmsg+0xee/0x170
[ 1915.411843][   T10]      __sys_sendmsg+0xcd/0x170
[ 1915.411843][   T10]      do_syscall_64+0xc6/0x1e0
[ 1915.411843][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1915.411843][   T10] 
[ 1915.413900][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1915.413900][   T10]      netdev_get_by_index+0x5e/0x80
[ 1915.413900][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1915.413900][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1915.413900][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1915.413900][   T10]      ipv6_add_addr+0x411/0x2000
[ 1915.413900][   T10]      inet6_addr_add+0x30e/0xa40
[ 1915.413900][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1915.413900][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1915.413900][   T10]      netlink_rcv_skb+0x130/0x360
[ 1915.413900][   T10]      netlink_unicast+0x449/0x710
[ 1915.413900][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1915.413900][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1915.413900][   T10]      ___sys_sendmsg+0xee/0x170
[ 1915.413900][   T10]      __sys_sendmsg+0xcd/0x170
[ 1915.413900][   T10]      do_syscall_64+0xc6/0x1e0
[ 1915.413900][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1915.413900][   T10] 
[ 1915.415954][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1915.415954][   T10]      netdev_get_by_index+0x5e/0x80
[ 1915.415954][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1915.415954][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1915.415954][   T10]      ip6_route_add+0x1c/0x140
[ 1915.415954][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1915.415954][   T10]      addrconf_add_dev+0xe2/0x170
[ 1915.415954][   T10]      inet6_addr_add+0x12f/0xa40
[ 1915.415954][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1915.415954][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1915.415954][   T10]      netlink_rcv_skb+0x130/0x360
[ 1915.415954][   T10]      netlink_unicast+0x449/0x710
[ 1915.415954][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1915.415954][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1915.415954][   T10]      ___sys_sendmsg+0xee/0x170
[ 1915.415954][   T10]      __sys_sendmsg+0xcd/0x170
[ 1915.415954][   T10]      do_syscall_64+0xc6/0x1e0
[ 1915.415954][   T10] 
[ 1915.417962][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1915.417962][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1915.417962][   T10]      ipv6_find_idev+0x102/0x170
[ 1915.417962][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1915.417962][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1915.417962][   T10]      netlink_rcv_skb+0x130/0x360
[ 1915.417962][   T10]      netlink_unicast+0x449/0x710
[ 1915.417962][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1915.417962][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1915.417962][   T10]      ___sys_sendmsg+0xee/0x170
[ 1915.417962][   T10]      __sys_sendmsg+0xcd/0x170
[ 1915.417962][   T10]      do_syscall_64+0xc6/0x1e0
[ 1915.417962][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1915.417962][   T10] 
[ 1915.419537][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1915.419537][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1915.419537][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1915.419537][   T10]      ipv6_find_idev+0x102/0x170
[ 1915.419537][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1915.419537][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1915.419537][   T10]      netlink_rcv_skb+0x130/0x360
[ 1915.419537][   T10]      netlink_unicast+0x449/0x710
[ 1915.419537][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1915.419537][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1915.419537][   T10]      ___sys_sendmsg+0xee/0x170
[ 1915.419537][   T10]      __sys_sendmsg+0xcd/0x170
[ 1915.419537][   T10]      do_syscall_64+0xc6/0x1e0
[ 1915.419537][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1915.419537][   T10] 
[ 1915.421283][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1915.421536][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1915.421536][   T10]      dst_init+0x84/0x4a0
[ 1915.421536][   T10]      dst_alloc+0x97/0x150
[ 1915.421536][   T10]      ip6_dst_alloc+0x23/0x90
[ 1915.421536][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1915.421536][   T10]      ip6_pol_route+0x56f/0x840
[ 1915.421536][   T10]      fib6_rule_lookup+0x456/0x630
[ 1915.421536][   T10]      ip6_route_input+0x59c/0xa50
[ 1915.421536][   T10]      ipv6_rcv+0x397/0x810
[ 1915.421536][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1915.421536][   T10]      process_backlog+0x101/0x620
[ 1915.421536][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1915.421536][   T10]      net_rx_action+0x495/0xbe0
[ 1915.421536][   T10]      __do_softirq+0x1b5/0x7f6
[ 1915.421536][   T10] 
[ 1915.423214][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1915.423214][   T10]      netdev_get_by_index+0x5e/0x80
[ 1915.423214][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1915.423214][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1915.423214][   T10]      ip6_route_add+0x1c/0x140
[ 1915.423214][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1915.423214][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1915.423214][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1915.423214][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1915.423214][   T10]      netlink_rcv_skb+0x130/0x360
[ 1915.423214][   T10]      netlink_unicast+0x449/0x710
[ 1915.423214][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1915.423214][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1915.423214][   T10]      ___sys_sendmsg+0xee/0x170
[ 1915.423214][   T10]      __sys_sendmsg+0xcd/0x170
[ 1915.423214][   T10]      do_syscall_64+0xc6/0x1e0
[ 1915.423214][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1915.423214][   T10] 
[ 1915.425260][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1915.425260][   T10]      netdev_get_by_index+0x5e/0x80
[ 1915.425260][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1915.425260][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1915.425260][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1915.425260][   T10]      ipv6_add_addr+0x411/0x2000
[ 1915.425260][   T10]      inet6_addr_add+0x30e/0xa40
[ 1915.425260][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1915.425260][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1915.425260][   T10]      netlink_rcv_skb+0x130/0x360
[ 1915.425260][   T10]      netlink_unicast+0x449/0x710
[ 1915.425260][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1915.425260][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1915.425260][   T10]      ___sys_sendmsg+0xee/0x170
[ 1915.425260][   T10]      __sys_sendmsg+0xcd/0x170
[ 1915.425260][   T10]      do_syscall_64+0xc6/0x1e0
[ 1915.425260][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1915.425260][   T10] 
[ 1915.427325][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1915.427325][   T10]      netdev_get_by_index+0x5e/0x80
[ 1915.427325][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1915.427325][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1915.427325][   T10]      ip6_route_add+0x1c/0x140
[ 1915.427325][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1915.427325][   T10]      addrconf_add_dev+0xe2/0x170
[ 1915.427325][   T10]      inet6_addr_add+0x12f/0xa40
[ 1915.427325][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1915.427325][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1915.427325][   T10]      netlink_rcv_skb+0x130/0x360
[ 1915.427325][   T10]      netlink_unicast+0x449/0x710
[ 1915.427325][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1915.427325][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1915.427325][   T10]      ___sys_sendmsg+0xee/0x170
[ 1915.427325][   T10]      __sys_sendmsg+0xcd/0x170
[ 1915.427325][   T10]      do_syscall_64+0xc6/0x1e0
[ 1915.427325][   T10] 
[ 1915.429336][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1915.429336][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1915.429336][   T10]      ipv6_find_idev+0x102/0x170
[ 1915.429336][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1915.429336][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1915.429336][   T10]      netlink_rcv_skb+0x130/0x360
[ 1915.429336][   T10]      netlink_unicast+0x449/0x710
[ 1915.429336][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1915.429336][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1915.429336][   T10]      ___sys_sendmsg+0xee/0x170
[ 1915.429336][   T10]      __sys_sendmsg+0xcd/0x170
[ 1915.429336][   T10]      do_syscall_64+0xc6/0x1e0
[ 1915.429336][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1915.429336][   T10] 
[ 1915.430932][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1915.430932][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1915.430932][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1915.430932][   T10]      ipv6_find_idev+0x102/0x170
[ 1915.430932][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1915.430932][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1915.430932][   T10]      netlink_rcv_skb+0x130/0x360
[ 1915.430932][   T10]      netlink_unicast+0x449/0x710
[ 1915.430932][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1915.430932][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1915.430932][   T10]      ___sys_sendmsg+0xee/0x170
[ 1915.430932][   T10]      __sys_sendmsg+0xcd/0x170
[ 1915.430932][   T10]      do_syscall_64+0xc6/0x1e0
[ 1915.430932][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1915.430932][   T10] 
[ 1925.673814][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1925.674221][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1925.674221][   T10]      dst_init+0x84/0x4a0
[ 1925.674221][   T10]      dst_alloc+0x97/0x150
[ 1925.674221][   T10]      ip6_dst_alloc+0x23/0x90
[ 1925.674221][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1925.674221][   T10]      ip6_pol_route+0x56f/0x840
[ 1925.674221][   T10]      fib6_rule_lookup+0x456/0x630
[ 1925.674221][   T10]      ip6_route_input+0x59c/0xa50
[ 1925.674221][   T10]      ipv6_rcv+0x397/0x810
[ 1925.674221][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1925.674221][   T10]      process_backlog+0x101/0x620
[ 1925.674221][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1925.674221][   T10]      net_rx_action+0x495/0xbe0
[ 1925.674221][   T10]      __do_softirq+0x1b5/0x7f6
[ 1925.674221][   T10] 
[ 1925.676013][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1925.676013][   T10]      netdev_get_by_index+0x5e/0x80
[ 1925.676013][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1925.676013][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1925.676013][   T10]      ip6_route_add+0x1c/0x140
[ 1925.676013][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1925.676013][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1925.676013][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1925.676013][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1925.676013][   T10]      netlink_rcv_skb+0x130/0x360
[ 1925.676013][   T10]      netlink_unicast+0x449/0x710
[ 1925.676013][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1925.676013][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1925.676013][   T10]      ___sys_sendmsg+0xee/0x170
[ 1925.676013][   T10]      __sys_sendmsg+0xcd/0x170
[ 1925.676013][   T10]      do_syscall_64+0xc6/0x1e0
[ 1925.676013][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1925.676013][   T10] 
[ 1925.678032][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1925.678032][   T10]      netdev_get_by_index+0x5e/0x80
[ 1925.678032][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1925.678032][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1925.678032][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1925.678032][   T10]      ipv6_add_addr+0x411/0x2000
[ 1925.678032][   T10]      inet6_addr_add+0x30e/0xa40
[ 1925.678032][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1925.678032][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1925.678032][   T10]      netlink_rcv_skb+0x130/0x360
[ 1925.678032][   T10]      netlink_unicast+0x449/0x710
[ 1925.678032][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1925.678032][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1925.678032][   T10]      ___sys_sendmsg+0xee/0x170
[ 1925.678032][   T10]      __sys_sendmsg+0xcd/0x170
[ 1925.678032][   T10]      do_syscall_64+0xc6/0x1e0
[ 1925.678032][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1925.678032][   T10] 
[ 1925.680055][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1925.680055][   T10]      netdev_get_by_index+0x5e/0x80
[ 1925.680055][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1925.680055][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1925.680055][   T10]      ip6_route_add+0x1c/0x140
[ 1925.680055][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1925.680055][   T10]      addrconf_add_dev+0xe2/0x170
[ 1925.680055][   T10]      inet6_addr_add+0x12f/0xa40
[ 1925.680055][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1925.680055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1925.680055][   T10]      netlink_rcv_skb+0x130/0x360
[ 1925.680055][   T10]      netlink_unicast+0x449/0x710
[ 1925.680055][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1925.680055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1925.680055][   T10]      ___sys_sendmsg+0xee/0x170
[ 1925.680055][   T10]      __sys_sendmsg+0xcd/0x170
[ 1925.680055][   T10]      do_syscall_64+0xc6/0x1e0
[ 1925.680055][   T10] 
[ 1925.682031][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1925.682031][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1925.682031][   T10]      ipv6_find_idev+0x102/0x170
[ 1925.682031][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1925.682031][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1925.682031][   T10]      netlink_rcv_skb+0x130/0x360
[ 1925.682031][   T10]      netlink_unicast+0x449/0x710
[ 1925.682031][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1925.682031][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1925.682031][   T10]      ___sys_sendmsg+0xee/0x170
[ 1925.682031][   T10]      __sys_sendmsg+0xcd/0x170
[ 1925.682031][   T10]      do_syscall_64+0xc6/0x1e0
[ 1925.682031][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1925.682031][   T10] 
[ 1925.683591][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1925.683591][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1925.683591][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1925.683591][   T10]      ipv6_find_idev+0x102/0x170
[ 1925.683591][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1925.683591][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1925.683591][   T10]      netlink_rcv_skb+0x130/0x360
[ 1925.683591][   T10]      netlink_unicast+0x449/0x710
[ 1925.683591][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1925.683591][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1925.683591][   T10]      ___sys_sendmsg+0xee/0x170
[ 1925.683591][   T10]      __sys_sendmsg+0xcd/0x170
[ 1925.683591][   T10]      do_syscall_64+0xc6/0x1e0
[ 1925.683591][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1925.683591][   T10] 
[ 1925.685289][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1925.685531][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1925.685531][   T10]      dst_init+0x84/0x4a0
[ 1925.685531][   T10]      dst_alloc+0x97/0x150
[ 1925.685531][   T10]      ip6_dst_alloc+0x23/0x90
[ 1925.685531][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1925.685531][   T10]      ip6_pol_route+0x56f/0x840
[ 1925.685531][   T10]      fib6_rule_lookup+0x456/0x630
[ 1925.685531][   T10]      ip6_route_input+0x59c/0xa50
[ 1925.685531][   T10]      ipv6_rcv+0x397/0x810
[ 1925.685531][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1925.685531][   T10]      process_backlog+0x101/0x620
[ 1925.685531][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1925.685531][   T10]      net_rx_action+0x495/0xbe0
[ 1925.685531][   T10]      __do_softirq+0x1b5/0x7f6
[ 1925.685531][   T10] 
[ 1925.687175][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1925.687175][   T10]      netdev_get_by_index+0x5e/0x80
[ 1925.687175][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1925.687175][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1925.687175][   T10]      ip6_route_add+0x1c/0x140
[ 1925.687175][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1925.687175][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1925.687175][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1925.687175][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1925.687175][   T10]      netlink_rcv_skb+0x130/0x360
[ 1925.687175][   T10]      netlink_unicast+0x449/0x710
[ 1925.687175][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1925.687175][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1925.687175][   T10]      ___sys_sendmsg+0xee/0x170
[ 1925.687175][   T10]      __sys_sendmsg+0xcd/0x170
[ 1925.687175][   T10]      do_syscall_64+0xc6/0x1e0
[ 1925.687175][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1925.687175][   T10] 
[ 1925.689339][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1925.689339][   T10]      netdev_get_by_index+0x5e/0x80
[ 1925.689339][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1925.689339][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1925.689339][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1925.689339][   T10]      ipv6_add_addr+0x411/0x2000
[ 1925.689339][   T10]      inet6_addr_add+0x30e/0xa40
[ 1925.689339][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1925.689339][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1925.689339][   T10]      netlink_rcv_skb+0x130/0x360
[ 1925.689339][   T10]      netlink_unicast+0x449/0x710
[ 1925.689339][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1925.689339][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1925.689339][   T10]      ___sys_sendmsg+0xee/0x170
[ 1925.689339][   T10]      __sys_sendmsg+0xcd/0x170
[ 1925.689339][   T10]      do_syscall_64+0xc6/0x1e0
[ 1925.689339][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1925.689339][   T10] 
[ 1925.691597][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1925.691597][   T10]      netdev_get_by_index+0x5e/0x80
[ 1925.691597][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1925.691597][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1925.691597][   T10]      ip6_route_add+0x1c/0x140
[ 1925.691597][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1925.691597][   T10]      addrconf_add_dev+0xe2/0x170
[ 1925.691597][   T10]      inet6_addr_add+0x12f/0xa40
[ 1925.691597][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1925.691597][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1925.691597][   T10]      netlink_rcv_skb+0x130/0x360
[ 1925.691597][   T10]      netlink_unicast+0x449/0x710
[ 1925.691597][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1925.691597][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1925.691597][   T10]      ___sys_sendmsg+0xee/0x170
[ 1925.691597][   T10]      __sys_sendmsg+0xcd/0x170
[ 1925.691597][   T10]      do_syscall_64+0xc6/0x1e0
[ 1925.691597][   T10] 
[ 1925.693811][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1925.693811][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1925.693811][   T10]      ipv6_find_idev+0x102/0x170
[ 1925.693811][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1925.693811][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1925.693811][   T10]      netlink_rcv_skb+0x130/0x360
[ 1925.693811][   T10]      netlink_unicast+0x449/0x710
[ 1925.693811][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1925.693811][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1925.693811][   T10]      ___sys_sendmsg+0xee/0x170
[ 1925.693811][   T10]      __sys_sendmsg+0xcd/0x170
[ 1925.693811][   T10]      do_syscall_64+0xc6/0x1e0
[ 1925.693811][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1925.693811][   T10] 
[ 1925.695365][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1925.695365][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1925.695365][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1925.695365][   T10]      ipv6_find_idev+0x102/0x170
[ 1925.695365][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1925.695365][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1925.695365][   T10]      netlink_rcv_skb+0x130/0x360
[ 1925.695365][   T10]      netlink_unicast+0x449/0x710
[ 1925.695365][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1925.695365][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1925.695365][   T10]      ___sys_sendmsg+0xee/0x170
[ 1925.695365][   T10]      __sys_sendmsg+0xcd/0x170
[ 1925.695365][   T10]      do_syscall_64+0xc6/0x1e0
[ 1925.695365][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1925.695365][   T10] 
[ 1935.753854][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1935.754307][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1935.754307][   T10]      dst_init+0x84/0x4a0
[ 1935.754307][   T10]      dst_alloc+0x97/0x150
[ 1935.754307][   T10]      ip6_dst_alloc+0x23/0x90
[ 1935.754307][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1935.754307][   T10]      ip6_pol_route+0x56f/0x840
[ 1935.754307][   T10]      fib6_rule_lookup+0x456/0x630
[ 1935.754307][   T10]      ip6_route_input+0x59c/0xa50
[ 1935.754307][   T10]      ipv6_rcv+0x397/0x810
[ 1935.754307][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1935.754307][   T10]      process_backlog+0x101/0x620
[ 1935.754307][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1935.754307][   T10]      net_rx_action+0x495/0xbe0
[ 1935.754307][   T10]      __do_softirq+0x1b5/0x7f6
[ 1935.754307][   T10] 
[ 1935.756007][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1935.756007][   T10]      netdev_get_by_index+0x5e/0x80
[ 1935.756007][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1935.756007][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1935.756007][   T10]      ip6_route_add+0x1c/0x140
[ 1935.756007][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1935.756007][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1935.756007][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1935.756007][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1935.756007][   T10]      netlink_rcv_skb+0x130/0x360
[ 1935.756007][   T10]      netlink_unicast+0x449/0x710
[ 1935.756007][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1935.756007][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1935.756007][   T10]      ___sys_sendmsg+0xee/0x170
[ 1935.756007][   T10]      __sys_sendmsg+0xcd/0x170
[ 1935.756007][   T10]      do_syscall_64+0xc6/0x1e0
[ 1935.756007][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1935.756007][   T10] 
[ 1935.758036][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1935.758036][   T10]      netdev_get_by_index+0x5e/0x80
[ 1935.758036][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1935.758036][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1935.758036][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1935.758036][   T10]      ipv6_add_addr+0x411/0x2000
[ 1935.758036][   T10]      inet6_addr_add+0x30e/0xa40
[ 1935.758036][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1935.758036][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1935.758036][   T10]      netlink_rcv_skb+0x130/0x360
[ 1935.758036][   T10]      netlink_unicast+0x449/0x710
[ 1935.758036][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1935.758036][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1935.758036][   T10]      ___sys_sendmsg+0xee/0x170
[ 1935.758036][   T10]      __sys_sendmsg+0xcd/0x170
[ 1935.758036][   T10]      do_syscall_64+0xc6/0x1e0
[ 1935.758036][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1935.758036][   T10] 
[ 1935.760055][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1935.760055][   T10]      netdev_get_by_index+0x5e/0x80
[ 1935.760055][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1935.760055][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1935.760055][   T10]      ip6_route_add+0x1c/0x140
[ 1935.760055][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1935.760055][   T10]      addrconf_add_dev+0xe2/0x170
[ 1935.760055][   T10]      inet6_addr_add+0x12f/0xa40
[ 1935.760055][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1935.760055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1935.760055][   T10]      netlink_rcv_skb+0x130/0x360
[ 1935.760055][   T10]      netlink_unicast+0x449/0x710
[ 1935.760055][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1935.760055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1935.760055][   T10]      ___sys_sendmsg+0xee/0x170
[ 1935.760055][   T10]      __sys_sendmsg+0xcd/0x170
[ 1935.760055][   T10]      do_syscall_64+0xc6/0x1e0
[ 1935.760055][   T10] 
[ 1935.762030][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1935.762030][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1935.762030][   T10]      ipv6_find_idev+0x102/0x170
[ 1935.762030][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1935.762030][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1935.762030][   T10]      netlink_rcv_skb+0x130/0x360
[ 1935.762030][   T10]      netlink_unicast+0x449/0x710
[ 1935.762030][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1935.762030][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1935.762030][   T10]      ___sys_sendmsg+0xee/0x170
[ 1935.762030][   T10]      __sys_sendmsg+0xcd/0x170
[ 1935.762030][   T10]      do_syscall_64+0xc6/0x1e0
[ 1935.762030][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1935.762030][   T10] 
[ 1935.763602][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1935.763602][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1935.763602][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1935.763602][   T10]      ipv6_find_idev+0x102/0x170
[ 1935.763602][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1935.763602][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1935.763602][   T10]      netlink_rcv_skb+0x130/0x360
[ 1935.763602][   T10]      netlink_unicast+0x449/0x710
[ 1935.763602][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1935.763602][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1935.763602][   T10]      ___sys_sendmsg+0xee/0x170
[ 1935.763602][   T10]      __sys_sendmsg+0xcd/0x170
[ 1935.763602][   T10]      do_syscall_64+0xc6/0x1e0
[ 1935.763602][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1935.763602][   T10] 
[ 1935.765312][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1935.765556][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1935.765556][   T10]      dst_init+0x84/0x4a0
[ 1935.765556][   T10]      dst_alloc+0x97/0x150
[ 1935.765556][   T10]      ip6_dst_alloc+0x23/0x90
[ 1935.765556][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1935.765556][   T10]      ip6_pol_route+0x56f/0x840
[ 1935.765556][   T10]      fib6_rule_lookup+0x456/0x630
[ 1935.765556][   T10]      ip6_route_input+0x59c/0xa50
[ 1935.765556][   T10]      ipv6_rcv+0x397/0x810
[ 1935.765556][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1935.765556][   T10]      process_backlog+0x101/0x620
[ 1935.765556][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1935.765556][   T10]      net_rx_action+0x495/0xbe0
[ 1935.765556][   T10]      __do_softirq+0x1b5/0x7f6
[ 1935.765556][   T10] 
[ 1935.767201][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1935.767201][   T10]      netdev_get_by_index+0x5e/0x80
[ 1935.767201][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1935.767201][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1935.767201][   T10]      ip6_route_add+0x1c/0x140
[ 1935.767201][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1935.767201][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1935.767201][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1935.767201][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1935.767201][   T10]      netlink_rcv_skb+0x130/0x360
[ 1935.767201][   T10]      netlink_unicast+0x449/0x710
[ 1935.767201][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1935.767201][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1935.767201][   T10]      ___sys_sendmsg+0xee/0x170
[ 1935.767201][   T10]      __sys_sendmsg+0xcd/0x170
[ 1935.767201][   T10]      do_syscall_64+0xc6/0x1e0
[ 1935.767201][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1935.767201][   T10] 
[ 1935.769207][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1935.769207][   T10]      netdev_get_by_index+0x5e/0x80
[ 1935.769207][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1935.769207][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1935.769207][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1935.769207][   T10]      ipv6_add_addr+0x411/0x2000
[ 1935.769207][   T10]      inet6_addr_add+0x30e/0xa40
[ 1935.769207][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1935.769207][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1935.769207][   T10]      netlink_rcv_skb+0x130/0x360
[ 1935.769207][   T10]      netlink_unicast+0x449/0x710
[ 1935.769207][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1935.769207][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1935.769207][   T10]      ___sys_sendmsg+0xee/0x170
[ 1935.769207][   T10]      __sys_sendmsg+0xcd/0x170
[ 1935.769207][   T10]      do_syscall_64+0xc6/0x1e0
[ 1935.769207][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1935.769207][   T10] 
[ 1935.771210][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1935.771210][   T10]      netdev_get_by_index+0x5e/0x80
[ 1935.771210][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1935.771210][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1935.771210][   T10]      ip6_route_add+0x1c/0x140
[ 1935.771210][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1935.771210][   T10]      addrconf_add_dev+0xe2/0x170
[ 1935.771210][   T10]      inet6_addr_add+0x12f/0xa40
[ 1935.771210][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1935.771210][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1935.771210][   T10]      netlink_rcv_skb+0x130/0x360
[ 1935.771210][   T10]      netlink_unicast+0x449/0x710
[ 1935.771210][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1935.771210][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1935.771210][   T10]      ___sys_sendmsg+0xee/0x170
[ 1935.771210][   T10]      __sys_sendmsg+0xcd/0x170
[ 1935.771210][   T10]      do_syscall_64+0xc6/0x1e0
[ 1935.771210][   T10] 
[ 1935.773187][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1935.773187][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1935.773187][   T10]      ipv6_find_idev+0x102/0x170
[ 1935.773187][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1935.773187][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1935.773187][   T10]      netlink_rcv_skb+0x130/0x360
[ 1935.773187][   T10]      netlink_unicast+0x449/0x710
[ 1935.773187][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1935.773187][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1935.773187][   T10]      ___sys_sendmsg+0xee/0x170
[ 1935.773187][   T10]      __sys_sendmsg+0xcd/0x170
[ 1935.773187][   T10]      do_syscall_64+0xc6/0x1e0
[ 1935.773187][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1935.773187][   T10] 
[ 1935.774728][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1935.774728][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1935.774728][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1935.774728][   T10]      ipv6_find_idev+0x102/0x170
[ 1935.774728][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1935.774728][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1935.774728][   T10]      netlink_rcv_skb+0x130/0x360
[ 1935.774728][   T10]      netlink_unicast+0x449/0x710
[ 1935.774728][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1935.774728][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1935.774728][   T10]      ___sys_sendmsg+0xee/0x170
[ 1935.774728][   T10]      __sys_sendmsg+0xcd/0x170
[ 1935.774728][   T10]      do_syscall_64+0xc6/0x1e0
[ 1935.774728][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1935.774728][   T10] 
[ 1946.017775][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1946.018278][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1946.018278][   T10]      dst_init+0x84/0x4a0
[ 1946.018278][   T10]      dst_alloc+0x97/0x150
[ 1946.018278][   T10]      ip6_dst_alloc+0x23/0x90
[ 1946.018278][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1946.018278][   T10]      ip6_pol_route+0x56f/0x840
[ 1946.018278][   T10]      fib6_rule_lookup+0x456/0x630
[ 1946.018278][   T10]      ip6_route_input+0x59c/0xa50
[ 1946.018278][   T10]      ipv6_rcv+0x397/0x810
[ 1946.018278][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1946.018278][   T10]      process_backlog+0x101/0x620
[ 1946.018278][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1946.018278][   T10]      net_rx_action+0x495/0xbe0
[ 1946.018278][   T10]      __do_softirq+0x1b5/0x7f6
[ 1946.018278][   T10] 
[ 1946.019977][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1946.019977][   T10]      netdev_get_by_index+0x5e/0x80
[ 1946.019977][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1946.019977][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1946.019977][   T10]      ip6_route_add+0x1c/0x140
[ 1946.019977][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1946.019977][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1946.019977][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1946.019977][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1946.019977][   T10]      netlink_rcv_skb+0x130/0x360
[ 1946.019977][   T10]      netlink_unicast+0x449/0x710
[ 1946.019977][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1946.019977][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1946.019977][   T10]      ___sys_sendmsg+0xee/0x170
[ 1946.019977][   T10]      __sys_sendmsg+0xcd/0x170
[ 1946.019977][   T10]      do_syscall_64+0xc6/0x1e0
[ 1946.019977][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1946.019977][   T10] 
[ 1946.022011][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1946.022011][   T10]      netdev_get_by_index+0x5e/0x80
[ 1946.022011][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1946.022011][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1946.022011][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1946.022011][   T10]      ipv6_add_addr+0x411/0x2000
[ 1946.022011][   T10]      inet6_addr_add+0x30e/0xa40
[ 1946.022011][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1946.022011][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1946.022011][   T10]      netlink_rcv_skb+0x130/0x360
[ 1946.022011][   T10]      netlink_unicast+0x449/0x710
[ 1946.022011][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1946.022011][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1946.022011][   T10]      ___sys_sendmsg+0xee/0x170
[ 1946.022011][   T10]      __sys_sendmsg+0xcd/0x170
[ 1946.022011][   T10]      do_syscall_64+0xc6/0x1e0
[ 1946.022011][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1946.022011][   T10] 
[ 1946.024031][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1946.024031][   T10]      netdev_get_by_index+0x5e/0x80
[ 1946.024031][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1946.024031][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1946.024031][   T10]      ip6_route_add+0x1c/0x140
[ 1946.024031][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1946.024031][   T10]      addrconf_add_dev+0xe2/0x170
[ 1946.024031][   T10]      inet6_addr_add+0x12f/0xa40
[ 1946.024031][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1946.024031][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1946.024031][   T10]      netlink_rcv_skb+0x130/0x360
[ 1946.024031][   T10]      netlink_unicast+0x449/0x710
[ 1946.024031][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1946.024031][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1946.024031][   T10]      ___sys_sendmsg+0xee/0x170
[ 1946.024031][   T10]      __sys_sendmsg+0xcd/0x170
[ 1946.024031][   T10]      do_syscall_64+0xc6/0x1e0
[ 1946.024031][   T10] 
[ 1946.025999][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1946.025999][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1946.025999][   T10]      ipv6_find_idev+0x102/0x170
[ 1946.025999][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1946.025999][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1946.025999][   T10]      netlink_rcv_skb+0x130/0x360
[ 1946.025999][   T10]      netlink_unicast+0x449/0x710
[ 1946.025999][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1946.025999][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1946.025999][   T10]      ___sys_sendmsg+0xee/0x170
[ 1946.025999][   T10]      __sys_sendmsg+0xcd/0x170
[ 1946.025999][   T10]      do_syscall_64+0xc6/0x1e0
[ 1946.025999][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1946.025999][   T10] 
[ 1946.027547][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1946.027547][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1946.027547][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1946.027547][   T10]      ipv6_find_idev+0x102/0x170
[ 1946.027547][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1946.027547][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1946.027547][   T10]      netlink_rcv_skb+0x130/0x360
[ 1946.027547][   T10]      netlink_unicast+0x449/0x710
[ 1946.027547][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1946.027547][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1946.027547][   T10]      ___sys_sendmsg+0xee/0x170
[ 1946.027547][   T10]      __sys_sendmsg+0xcd/0x170
[ 1946.027547][   T10]      do_syscall_64+0xc6/0x1e0
[ 1946.027547][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1946.027547][   T10] 
[ 1946.029250][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1946.029500][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1946.029500][   T10]      dst_init+0x84/0x4a0
[ 1946.029500][   T10]      dst_alloc+0x97/0x150
[ 1946.029500][   T10]      ip6_dst_alloc+0x23/0x90
[ 1946.029500][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1946.029500][   T10]      ip6_pol_route+0x56f/0x840
[ 1946.029500][   T10]      fib6_rule_lookup+0x456/0x630
[ 1946.029500][   T10]      ip6_route_input+0x59c/0xa50
[ 1946.029500][   T10]      ipv6_rcv+0x397/0x810
[ 1946.029500][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1946.029500][   T10]      process_backlog+0x101/0x620
[ 1946.029500][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1946.029500][   T10]      net_rx_action+0x495/0xbe0
[ 1946.029500][   T10]      __do_softirq+0x1b5/0x7f6
[ 1946.029500][   T10] 
[ 1946.031143][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1946.031143][   T10]      netdev_get_by_index+0x5e/0x80
[ 1946.031143][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1946.031143][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1946.031143][   T10]      ip6_route_add+0x1c/0x140
[ 1946.031143][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1946.031143][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1946.031143][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1946.031143][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1946.031143][   T10]      netlink_rcv_skb+0x130/0x360
[ 1946.031143][   T10]      netlink_unicast+0x449/0x710
[ 1946.031143][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1946.031143][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1946.031143][   T10]      ___sys_sendmsg+0xee/0x170
[ 1946.031143][   T10]      __sys_sendmsg+0xcd/0x170
[ 1946.031143][   T10]      do_syscall_64+0xc6/0x1e0
[ 1946.031143][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1946.031143][   T10] 
[ 1946.033155][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1946.033155][   T10]      netdev_get_by_index+0x5e/0x80
[ 1946.033155][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1946.033155][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1946.033155][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1946.033155][   T10]      ipv6_add_addr+0x411/0x2000
[ 1946.033155][   T10]      inet6_addr_add+0x30e/0xa40
[ 1946.033155][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1946.033155][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1946.033155][   T10]      netlink_rcv_skb+0x130/0x360
[ 1946.033155][   T10]      netlink_unicast+0x449/0x710
[ 1946.033155][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1946.033155][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1946.033155][   T10]      ___sys_sendmsg+0xee/0x170
[ 1946.033155][   T10]      __sys_sendmsg+0xcd/0x170
[ 1946.033155][   T10]      do_syscall_64+0xc6/0x1e0
[ 1946.033155][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1946.033155][   T10] 
[ 1946.035158][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1946.035158][   T10]      netdev_get_by_index+0x5e/0x80
[ 1946.035158][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1946.035158][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1946.035158][   T10]      ip6_route_add+0x1c/0x140
[ 1946.035158][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1946.035158][   T10]      addrconf_add_dev+0xe2/0x170
[ 1946.035158][   T10]      inet6_addr_add+0x12f/0xa40
[ 1946.035158][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1946.035158][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1946.035158][   T10]      netlink_rcv_skb+0x130/0x360
[ 1946.035158][   T10]      netlink_unicast+0x449/0x710
[ 1946.035158][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1946.035158][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1946.035158][   T10]      ___sys_sendmsg+0xee/0x170
[ 1946.035158][   T10]      __sys_sendmsg+0xcd/0x170
[ 1946.035158][   T10]      do_syscall_64+0xc6/0x1e0
[ 1946.035158][   T10] 
[ 1946.037126][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1946.037126][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1946.037126][   T10]      ipv6_find_idev+0x102/0x170
[ 1946.037126][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1946.037126][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1946.037126][   T10]      netlink_rcv_skb+0x130/0x360
[ 1946.037126][   T10]      netlink_unicast+0x449/0x710
[ 1946.037126][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1946.037126][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1946.037126][   T10]      ___sys_sendmsg+0xee/0x170
[ 1946.037126][   T10]      __sys_sendmsg+0xcd/0x170
[ 1946.037126][   T10]      do_syscall_64+0xc6/0x1e0
[ 1946.037126][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1946.037126][   T10] 
[ 1946.038668][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1946.038668][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1946.038668][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1946.038668][   T10]      ipv6_find_idev+0x102/0x170
[ 1946.038668][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1946.038668][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1946.038668][   T10]      netlink_rcv_skb+0x130/0x360
[ 1946.038668][   T10]      netlink_unicast+0x449/0x710
[ 1946.038668][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1946.038668][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1946.038668][   T10]      ___sys_sendmsg+0xee/0x170
[ 1946.038668][   T10]      __sys_sendmsg+0xcd/0x170
[ 1946.038668][   T10]      do_syscall_64+0xc6/0x1e0
[ 1946.038668][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1946.038668][   T10] 
[ 1956.281785][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1956.282250][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1956.282250][   T10]      dst_init+0x84/0x4a0
[ 1956.282250][   T10]      dst_alloc+0x97/0x150
[ 1956.282250][   T10]      ip6_dst_alloc+0x23/0x90
[ 1956.282250][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1956.282250][   T10]      ip6_pol_route+0x56f/0x840
[ 1956.282250][   T10]      fib6_rule_lookup+0x456/0x630
[ 1956.282250][   T10]      ip6_route_input+0x59c/0xa50
[ 1956.282250][   T10]      ipv6_rcv+0x397/0x810
[ 1956.282250][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1956.282250][   T10]      process_backlog+0x101/0x620
[ 1956.282250][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1956.282250][   T10]      net_rx_action+0x495/0xbe0
[ 1956.282250][   T10]      __do_softirq+0x1b5/0x7f6
[ 1956.282250][   T10] 
[ 1956.283999][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1956.283999][   T10]      netdev_get_by_index+0x5e/0x80
[ 1956.283999][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1956.283999][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1956.283999][   T10]      ip6_route_add+0x1c/0x140
[ 1956.283999][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1956.283999][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1956.283999][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1956.283999][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1956.283999][   T10]      netlink_rcv_skb+0x130/0x360
[ 1956.283999][   T10]      netlink_unicast+0x449/0x710
[ 1956.283999][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1956.283999][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1956.283999][   T10]      ___sys_sendmsg+0xee/0x170
[ 1956.283999][   T10]      __sys_sendmsg+0xcd/0x170
[ 1956.283999][   T10]      do_syscall_64+0xc6/0x1e0
[ 1956.283999][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1956.283999][   T10] 
[ 1956.286036][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1956.286036][   T10]      netdev_get_by_index+0x5e/0x80
[ 1956.286036][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1956.286036][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1956.286036][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1956.286036][   T10]      ipv6_add_addr+0x411/0x2000
[ 1956.286036][   T10]      inet6_addr_add+0x30e/0xa40
[ 1956.286036][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1956.286036][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1956.286036][   T10]      netlink_rcv_skb+0x130/0x360
[ 1956.286036][   T10]      netlink_unicast+0x449/0x710
[ 1956.286036][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1956.286036][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1956.286036][   T10]      ___sys_sendmsg+0xee/0x170
[ 1956.286036][   T10]      __sys_sendmsg+0xcd/0x170
[ 1956.286036][   T10]      do_syscall_64+0xc6/0x1e0
[ 1956.286036][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1956.286036][   T10] 
[ 1956.288050][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1956.288050][   T10]      netdev_get_by_index+0x5e/0x80
[ 1956.288050][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1956.288050][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1956.288050][   T10]      ip6_route_add+0x1c/0x140
[ 1956.288050][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1956.288050][   T10]      addrconf_add_dev+0xe2/0x170
[ 1956.288050][   T10]      inet6_addr_add+0x12f/0xa40
[ 1956.288050][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1956.288050][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1956.288050][   T10]      netlink_rcv_skb+0x130/0x360
[ 1956.288050][   T10]      netlink_unicast+0x449/0x710
[ 1956.288050][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1956.288050][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1956.288050][   T10]      ___sys_sendmsg+0xee/0x170
[ 1956.288050][   T10]      __sys_sendmsg+0xcd/0x170
[ 1956.288050][   T10]      do_syscall_64+0xc6/0x1e0
[ 1956.288050][   T10] 
[ 1956.290043][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1956.290043][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1956.290043][   T10]      ipv6_find_idev+0x102/0x170
[ 1956.290043][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1956.290043][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1956.290043][   T10]      netlink_rcv_skb+0x130/0x360
[ 1956.290043][   T10]      netlink_unicast+0x449/0x710
[ 1956.290043][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1956.290043][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1956.290043][   T10]      ___sys_sendmsg+0xee/0x170
[ 1956.290043][   T10]      __sys_sendmsg+0xcd/0x170
[ 1956.290043][   T10]      do_syscall_64+0xc6/0x1e0
[ 1956.290043][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1956.290043][   T10] 
[ 1956.291600][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1956.291600][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1956.291600][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1956.291600][   T10]      ipv6_find_idev+0x102/0x170
[ 1956.291600][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1956.291600][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1956.291600][   T10]      netlink_rcv_skb+0x130/0x360
[ 1956.291600][   T10]      netlink_unicast+0x449/0x710
[ 1956.291600][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1956.291600][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1956.291600][   T10]      ___sys_sendmsg+0xee/0x170
[ 1956.291600][   T10]      __sys_sendmsg+0xcd/0x170
[ 1956.291600][   T10]      do_syscall_64+0xc6/0x1e0
[ 1956.291600][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1956.291600][   T10] 
[ 1956.293313][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1956.293560][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1956.293560][   T10]      dst_init+0x84/0x4a0
[ 1956.293560][   T10]      dst_alloc+0x97/0x150
[ 1956.293560][   T10]      ip6_dst_alloc+0x23/0x90
[ 1956.293560][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1956.293560][   T10]      ip6_pol_route+0x56f/0x840
[ 1956.293560][   T10]      fib6_rule_lookup+0x456/0x630
[ 1956.293560][   T10]      ip6_route_input+0x59c/0xa50
[ 1956.293560][   T10]      ipv6_rcv+0x397/0x810
[ 1956.293560][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1956.293560][   T10]      process_backlog+0x101/0x620
[ 1956.293560][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1956.293560][   T10]      net_rx_action+0x495/0xbe0
[ 1956.293560][   T10]      __do_softirq+0x1b5/0x7f6
[ 1956.293560][   T10] 
[ 1956.295215][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1956.295215][   T10]      netdev_get_by_index+0x5e/0x80
[ 1956.295215][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1956.295215][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1956.295215][   T10]      ip6_route_add+0x1c/0x140
[ 1956.295215][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1956.295215][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1956.295215][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1956.295215][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1956.295215][   T10]      netlink_rcv_skb+0x130/0x360
[ 1956.295215][   T10]      netlink_unicast+0x449/0x710
[ 1956.295215][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1956.295215][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1956.295215][   T10]      ___sys_sendmsg+0xee/0x170
[ 1956.295215][   T10]      __sys_sendmsg+0xcd/0x170
[ 1956.295215][   T10]      do_syscall_64+0xc6/0x1e0
[ 1956.295215][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1956.295215][   T10] 
[ 1956.297225][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1956.297225][   T10]      netdev_get_by_index+0x5e/0x80
[ 1956.297225][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1956.297225][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1956.297225][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1956.297225][   T10]      ipv6_add_addr+0x411/0x2000
[ 1956.297225][   T10]      inet6_addr_add+0x30e/0xa40
[ 1956.297225][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1956.297225][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1956.297225][   T10]      netlink_rcv_skb+0x130/0x360
[ 1956.297225][   T10]      netlink_unicast+0x449/0x710
[ 1956.297225][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1956.297225][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1956.297225][   T10]      ___sys_sendmsg+0xee/0x170
[ 1956.297225][   T10]      __sys_sendmsg+0xcd/0x170
[ 1956.297225][   T10]      do_syscall_64+0xc6/0x1e0
[ 1956.297225][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1956.297225][   T10] 
[ 1956.299239][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1956.299239][   T10]      netdev_get_by_index+0x5e/0x80
[ 1956.299239][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1956.299239][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1956.299239][   T10]      ip6_route_add+0x1c/0x140
[ 1956.299239][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1956.299239][   T10]      addrconf_add_dev+0xe2/0x170
[ 1956.299239][   T10]      inet6_addr_add+0x12f/0xa40
[ 1956.299239][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1956.299239][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1956.299239][   T10]      netlink_rcv_skb+0x130/0x360
[ 1956.299239][   T10]      netlink_unicast+0x449/0x710
[ 1956.299239][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1956.299239][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1956.299239][   T10]      ___sys_sendmsg+0xee/0x170
[ 1956.299239][   T10]      __sys_sendmsg+0xcd/0x170
[ 1956.299239][   T10]      do_syscall_64+0xc6/0x1e0
[ 1956.299239][   T10] 
[ 1956.301212][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1956.301212][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1956.301212][   T10]      ipv6_find_idev+0x102/0x170
[ 1956.301212][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1956.301212][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1956.301212][   T10]      netlink_rcv_skb+0x130/0x360
[ 1956.301212][   T10]      netlink_unicast+0x449/0x710
[ 1956.301212][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1956.301212][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1956.301212][   T10]      ___sys_sendmsg+0xee/0x170
[ 1956.301212][   T10]      __sys_sendmsg+0xcd/0x170
[ 1956.301212][   T10]      do_syscall_64+0xc6/0x1e0
[ 1956.301212][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1956.301212][   T10] 
[ 1956.302762][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1956.302762][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1956.302762][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1956.302762][   T10]      ipv6_find_idev+0x102/0x170
[ 1956.302762][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1956.302762][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1956.302762][   T10]      netlink_rcv_skb+0x130/0x360
[ 1956.302762][   T10]      netlink_unicast+0x449/0x710
[ 1956.302762][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1956.302762][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1956.302762][   T10]      ___sys_sendmsg+0xee/0x170
[ 1956.302762][   T10]      __sys_sendmsg+0xcd/0x170
[ 1956.302762][   T10]      do_syscall_64+0xc6/0x1e0
[ 1956.302762][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1956.302762][   T10] 
[ 1966.369783][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1966.370276][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1966.370276][   T10]      dst_init+0x84/0x4a0
[ 1966.370276][   T10]      dst_alloc+0x97/0x150
[ 1966.370276][   T10]      ip6_dst_alloc+0x23/0x90
[ 1966.370276][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1966.370276][   T10]      ip6_pol_route+0x56f/0x840
[ 1966.370276][   T10]      fib6_rule_lookup+0x456/0x630
[ 1966.370276][   T10]      ip6_route_input+0x59c/0xa50
[ 1966.370276][   T10]      ipv6_rcv+0x397/0x810
[ 1966.370276][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1966.370276][   T10]      process_backlog+0x101/0x620
[ 1966.370276][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1966.370276][   T10]      net_rx_action+0x495/0xbe0
[ 1966.370276][   T10]      __do_softirq+0x1b5/0x7f6
[ 1966.370276][   T10] 
[ 1966.371978][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1966.371978][   T10]      netdev_get_by_index+0x5e/0x80
[ 1966.371978][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1966.371978][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1966.371978][   T10]      ip6_route_add+0x1c/0x140
[ 1966.371978][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1966.371978][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1966.371978][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1966.371978][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1966.371978][   T10]      netlink_rcv_skb+0x130/0x360
[ 1966.371978][   T10]      netlink_unicast+0x449/0x710
[ 1966.371978][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1966.371978][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1966.371978][   T10]      ___sys_sendmsg+0xee/0x170
[ 1966.371978][   T10]      __sys_sendmsg+0xcd/0x170
[ 1966.371978][   T10]      do_syscall_64+0xc6/0x1e0
[ 1966.371978][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1966.371978][   T10] 
[ 1966.374002][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1966.374002][   T10]      netdev_get_by_index+0x5e/0x80
[ 1966.374002][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1966.374002][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1966.374002][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1966.374002][   T10]      ipv6_add_addr+0x411/0x2000
[ 1966.374002][   T10]      inet6_addr_add+0x30e/0xa40
[ 1966.374002][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1966.374002][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1966.374002][   T10]      netlink_rcv_skb+0x130/0x360
[ 1966.374002][   T10]      netlink_unicast+0x449/0x710
[ 1966.374002][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1966.374002][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1966.374002][   T10]      ___sys_sendmsg+0xee/0x170
[ 1966.374002][   T10]      __sys_sendmsg+0xcd/0x170
[ 1966.374002][   T10]      do_syscall_64+0xc6/0x1e0
[ 1966.374002][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1966.374002][   T10] 
[ 1966.376024][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1966.376024][   T10]      netdev_get_by_index+0x5e/0x80
[ 1966.376024][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1966.376024][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1966.376024][   T10]      ip6_route_add+0x1c/0x140
[ 1966.376024][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1966.376024][   T10]      addrconf_add_dev+0xe2/0x170
[ 1966.376024][   T10]      inet6_addr_add+0x12f/0xa40
[ 1966.376024][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1966.376024][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1966.376024][   T10]      netlink_rcv_skb+0x130/0x360
[ 1966.376024][   T10]      netlink_unicast+0x449/0x710
[ 1966.376024][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1966.376024][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1966.376024][   T10]      ___sys_sendmsg+0xee/0x170
[ 1966.376024][   T10]      __sys_sendmsg+0xcd/0x170
[ 1966.376024][   T10]      do_syscall_64+0xc6/0x1e0
[ 1966.376024][   T10] 
[ 1966.377995][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1966.377995][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1966.377995][   T10]      ipv6_find_idev+0x102/0x170
[ 1966.377995][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1966.377995][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1966.377995][   T10]      netlink_rcv_skb+0x130/0x360
[ 1966.377995][   T10]      netlink_unicast+0x449/0x710
[ 1966.377995][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1966.377995][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1966.377995][   T10]      ___sys_sendmsg+0xee/0x170
[ 1966.377995][   T10]      __sys_sendmsg+0xcd/0x170
[ 1966.377995][   T10]      do_syscall_64+0xc6/0x1e0
[ 1966.377995][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1966.377995][   T10] 
[ 1966.379549][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1966.379549][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1966.379549][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1966.379549][   T10]      ipv6_find_idev+0x102/0x170
[ 1966.379549][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1966.379549][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1966.379549][   T10]      netlink_rcv_skb+0x130/0x360
[ 1966.379549][   T10]      netlink_unicast+0x449/0x710
[ 1966.379549][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1966.379549][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1966.379549][   T10]      ___sys_sendmsg+0xee/0x170
[ 1966.379549][   T10]      __sys_sendmsg+0xcd/0x170
[ 1966.379549][   T10]      do_syscall_64+0xc6/0x1e0
[ 1966.379549][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1966.379549][   T10] 
[ 1966.381256][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1966.381505][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1966.381505][   T10]      dst_init+0x84/0x4a0
[ 1966.381505][   T10]      dst_alloc+0x97/0x150
[ 1966.381505][   T10]      ip6_dst_alloc+0x23/0x90
[ 1966.381505][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1966.381505][   T10]      ip6_pol_route+0x56f/0x840
[ 1966.381505][   T10]      fib6_rule_lookup+0x456/0x630
[ 1966.381505][   T10]      ip6_route_input+0x59c/0xa50
[ 1966.381505][   T10]      ipv6_rcv+0x397/0x810
[ 1966.381505][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1966.381505][   T10]      process_backlog+0x101/0x620
[ 1966.381505][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1966.381505][   T10]      net_rx_action+0x495/0xbe0
[ 1966.381505][   T10]      __do_softirq+0x1b5/0x7f6
[ 1966.381505][   T10] 
[ 1966.383161][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1966.383161][   T10]      netdev_get_by_index+0x5e/0x80
[ 1966.383161][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1966.383161][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1966.383161][   T10]      ip6_route_add+0x1c/0x140
[ 1966.383161][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1966.383161][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1966.383161][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1966.383161][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1966.383161][   T10]      netlink_rcv_skb+0x130/0x360
[ 1966.383161][   T10]      netlink_unicast+0x449/0x710
[ 1966.383161][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1966.383161][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1966.383161][   T10]      ___sys_sendmsg+0xee/0x170
[ 1966.383161][   T10]      __sys_sendmsg+0xcd/0x170
[ 1966.383161][   T10]      do_syscall_64+0xc6/0x1e0
[ 1966.383161][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1966.383161][   T10] 
[ 1966.385183][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1966.385183][   T10]      netdev_get_by_index+0x5e/0x80
[ 1966.385183][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1966.385183][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1966.385183][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1966.385183][   T10]      ipv6_add_addr+0x411/0x2000
[ 1966.385183][   T10]      inet6_addr_add+0x30e/0xa40
[ 1966.385183][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1966.385183][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1966.385183][   T10]      netlink_rcv_skb+0x130/0x360
[ 1966.385183][   T10]      netlink_unicast+0x449/0x710
[ 1966.385183][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1966.385183][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1966.385183][   T10]      ___sys_sendmsg+0xee/0x170
[ 1966.385183][   T10]      __sys_sendmsg+0xcd/0x170
[ 1966.385183][   T10]      do_syscall_64+0xc6/0x1e0
[ 1966.385183][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1966.385183][   T10] 
[ 1966.387207][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1966.387207][   T10]      netdev_get_by_index+0x5e/0x80
[ 1966.387207][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1966.387207][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1966.387207][   T10]      ip6_route_add+0x1c/0x140
[ 1966.387207][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1966.387207][   T10]      addrconf_add_dev+0xe2/0x170
[ 1966.387207][   T10]      inet6_addr_add+0x12f/0xa40
[ 1966.387207][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1966.387207][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1966.387207][   T10]      netlink_rcv_skb+0x130/0x360
[ 1966.387207][   T10]      netlink_unicast+0x449/0x710
[ 1966.387207][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1966.387207][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1966.387207][   T10]      ___sys_sendmsg+0xee/0x170
[ 1966.387207][   T10]      __sys_sendmsg+0xcd/0x170
[ 1966.387207][   T10]      do_syscall_64+0xc6/0x1e0
[ 1966.387207][   T10] 
[ 1966.389180][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1966.389180][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1966.389180][   T10]      ipv6_find_idev+0x102/0x170
[ 1966.389180][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1966.389180][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1966.389180][   T10]      netlink_rcv_skb+0x130/0x360
[ 1966.389180][   T10]      netlink_unicast+0x449/0x710
[ 1966.389180][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1966.389180][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1966.389180][   T10]      ___sys_sendmsg+0xee/0x170
[ 1966.389180][   T10]      __sys_sendmsg+0xcd/0x170
[ 1966.389180][   T10]      do_syscall_64+0xc6/0x1e0
[ 1966.389180][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1966.389180][   T10] 
[ 1966.390730][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1966.390730][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1966.390730][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1966.390730][   T10]      ipv6_find_idev+0x102/0x170
[ 1966.390730][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1966.390730][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1966.390730][   T10]      netlink_rcv_skb+0x130/0x360
[ 1966.390730][   T10]      netlink_unicast+0x449/0x710
[ 1966.390730][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1966.390730][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1966.390730][   T10]      ___sys_sendmsg+0xee/0x170
[ 1966.390730][   T10]      __sys_sendmsg+0xcd/0x170
[ 1966.390730][   T10]      do_syscall_64+0xc6/0x1e0
[ 1966.390730][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1966.390730][   T10] 
[ 1976.633804][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1976.634272][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1976.634272][   T10]      dst_init+0x84/0x4a0
[ 1976.634272][   T10]      dst_alloc+0x97/0x150
[ 1976.634272][   T10]      ip6_dst_alloc+0x23/0x90
[ 1976.634272][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1976.634272][   T10]      ip6_pol_route+0x56f/0x840
[ 1976.634272][   T10]      fib6_rule_lookup+0x456/0x630
[ 1976.634272][   T10]      ip6_route_input+0x59c/0xa50
[ 1976.634272][   T10]      ipv6_rcv+0x397/0x810
[ 1976.634272][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1976.634272][   T10]      process_backlog+0x101/0x620
[ 1976.634272][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1976.634272][   T10]      net_rx_action+0x495/0xbe0
[ 1976.634272][   T10]      __do_softirq+0x1b5/0x7f6
[ 1976.634272][   T10] 
[ 1976.635969][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1976.635969][   T10]      netdev_get_by_index+0x5e/0x80
[ 1976.635969][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1976.635969][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1976.635969][   T10]      ip6_route_add+0x1c/0x140
[ 1976.635969][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1976.635969][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1976.635969][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1976.635969][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1976.635969][   T10]      netlink_rcv_skb+0x130/0x360
[ 1976.635969][   T10]      netlink_unicast+0x449/0x710
[ 1976.635969][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1976.635969][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1976.635969][   T10]      ___sys_sendmsg+0xee/0x170
[ 1976.635969][   T10]      __sys_sendmsg+0xcd/0x170
[ 1976.635969][   T10]      do_syscall_64+0xc6/0x1e0
[ 1976.635969][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1976.635969][   T10] 
[ 1976.638013][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1976.638013][   T10]      netdev_get_by_index+0x5e/0x80
[ 1976.638013][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1976.638013][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1976.638013][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1976.638013][   T10]      ipv6_add_addr+0x411/0x2000
[ 1976.638013][   T10]      inet6_addr_add+0x30e/0xa40
[ 1976.638013][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1976.638013][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1976.638013][   T10]      netlink_rcv_skb+0x130/0x360
[ 1976.638013][   T10]      netlink_unicast+0x449/0x710
[ 1976.638013][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1976.638013][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1976.638013][   T10]      ___sys_sendmsg+0xee/0x170
[ 1976.638013][   T10]      __sys_sendmsg+0xcd/0x170
[ 1976.638013][   T10]      do_syscall_64+0xc6/0x1e0
[ 1976.638013][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1976.638013][   T10] 
[ 1976.640037][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1976.640037][   T10]      netdev_get_by_index+0x5e/0x80
[ 1976.640037][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1976.640037][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1976.640037][   T10]      ip6_route_add+0x1c/0x140
[ 1976.640037][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1976.640037][   T10]      addrconf_add_dev+0xe2/0x170
[ 1976.640037][   T10]      inet6_addr_add+0x12f/0xa40
[ 1976.640037][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1976.640037][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1976.640037][   T10]      netlink_rcv_skb+0x130/0x360
[ 1976.640037][   T10]      netlink_unicast+0x449/0x710
[ 1976.640037][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1976.640037][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1976.640037][   T10]      ___sys_sendmsg+0xee/0x170
[ 1976.640037][   T10]      __sys_sendmsg+0xcd/0x170
[ 1976.640037][   T10]      do_syscall_64+0xc6/0x1e0
[ 1976.640037][   T10] 
[ 1976.642013][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1976.642013][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1976.642013][   T10]      ipv6_find_idev+0x102/0x170
[ 1976.642013][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1976.642013][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1976.642013][   T10]      netlink_rcv_skb+0x130/0x360
[ 1976.642013][   T10]      netlink_unicast+0x449/0x710
[ 1976.642013][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1976.642013][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1976.642013][   T10]      ___sys_sendmsg+0xee/0x170
[ 1976.642013][   T10]      __sys_sendmsg+0xcd/0x170
[ 1976.642013][   T10]      do_syscall_64+0xc6/0x1e0
[ 1976.642013][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1976.642013][   T10] 
[ 1976.643582][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1976.643582][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1976.643582][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1976.643582][   T10]      ipv6_find_idev+0x102/0x170
[ 1976.643582][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1976.643582][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1976.643582][   T10]      netlink_rcv_skb+0x130/0x360
[ 1976.643582][   T10]      netlink_unicast+0x449/0x710
[ 1976.643582][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1976.643582][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1976.643582][   T10]      ___sys_sendmsg+0xee/0x170
[ 1976.643582][   T10]      __sys_sendmsg+0xcd/0x170
[ 1976.643582][   T10]      do_syscall_64+0xc6/0x1e0
[ 1976.643582][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1976.643582][   T10] 
[ 1976.645287][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1976.645527][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1976.645527][   T10]      dst_init+0x84/0x4a0
[ 1976.645527][   T10]      dst_alloc+0x97/0x150
[ 1976.645527][   T10]      ip6_dst_alloc+0x23/0x90
[ 1976.645527][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1976.645527][   T10]      ip6_pol_route+0x56f/0x840
[ 1976.645527][   T10]      fib6_rule_lookup+0x456/0x630
[ 1976.645527][   T10]      ip6_route_input+0x59c/0xa50
[ 1976.645527][   T10]      ipv6_rcv+0x397/0x810
[ 1976.645527][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1976.645527][   T10]      process_backlog+0x101/0x620
[ 1976.645527][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1976.645527][   T10]      net_rx_action+0x495/0xbe0
[ 1976.645527][   T10]      __do_softirq+0x1b5/0x7f6
[ 1976.645527][   T10] 
[ 1976.647590][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1976.647590][   T10]      netdev_get_by_index+0x5e/0x80
[ 1976.647590][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1976.647590][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1976.647590][   T10]      ip6_route_add+0x1c/0x140
[ 1976.647590][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1976.647590][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1976.647590][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1976.647590][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1976.647590][   T10]      netlink_rcv_skb+0x130/0x360
[ 1976.647590][   T10]      netlink_unicast+0x449/0x710
[ 1976.647590][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1976.647590][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1976.647590][   T10]      ___sys_sendmsg+0xee/0x170
[ 1976.647590][   T10]      __sys_sendmsg+0xcd/0x170
[ 1976.647590][   T10]      do_syscall_64+0xc6/0x1e0
[ 1976.647590][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1976.647590][   T10] 
[ 1976.650778][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1976.650778][   T10]      netdev_get_by_index+0x5e/0x80
[ 1976.650778][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1976.650778][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1976.650778][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1976.650778][   T10]      ipv6_add_addr+0x411/0x2000
[ 1976.650778][   T10]      inet6_addr_add+0x30e/0xa40
[ 1976.650778][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1976.650778][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1976.650778][   T10]      netlink_rcv_skb+0x130/0x360
[ 1976.650778][   T10]      netlink_unicast+0x449/0x710
[ 1976.650778][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1976.650778][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1976.650778][   T10]      ___sys_sendmsg+0xee/0x170
[ 1976.650778][   T10]      __sys_sendmsg+0xcd/0x170
[ 1976.650778][   T10]      do_syscall_64+0xc6/0x1e0
[ 1976.650778][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1976.650778][   T10] 
[ 1976.653963][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1976.653963][   T10]      netdev_get_by_index+0x5e/0x80
[ 1976.653963][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1976.653963][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1976.653963][   T10]      ip6_route_add+0x1c/0x140
[ 1976.653963][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1976.653963][   T10]      addrconf_add_dev+0xe2/0x170
[ 1976.653963][   T10]      inet6_addr_add+0x12f/0xa40
[ 1976.653963][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1976.653963][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1976.653963][   T10]      netlink_rcv_skb+0x130/0x360
[ 1976.653963][   T10]      netlink_unicast+0x449/0x710
[ 1976.653963][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1976.653963][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1976.653963][   T10]      ___sys_sendmsg+0xee/0x170
[ 1976.653963][   T10]      __sys_sendmsg+0xcd/0x170
[ 1976.653963][   T10]      do_syscall_64+0xc6/0x1e0
[ 1976.653963][   T10] 
[ 1976.657089][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1976.657089][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1976.657089][   T10]      ipv6_find_idev+0x102/0x170
[ 1976.657089][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1976.657089][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1976.657089][   T10]      netlink_rcv_skb+0x130/0x360
[ 1976.657089][   T10]      netlink_unicast+0x449/0x710
[ 1976.657089][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1976.657089][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1976.657089][   T10]      ___sys_sendmsg+0xee/0x170
[ 1976.657089][   T10]      __sys_sendmsg+0xcd/0x170
[ 1976.657089][   T10]      do_syscall_64+0xc6/0x1e0
[ 1976.657089][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1976.657089][   T10] 
[ 1976.659544][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1976.659544][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1976.659544][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1976.659544][   T10]      ipv6_find_idev+0x102/0x170
[ 1976.659544][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1976.659544][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1976.659544][   T10]      netlink_rcv_skb+0x130/0x360
[ 1976.659544][   T10]      netlink_unicast+0x449/0x710
[ 1976.659544][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1976.659544][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1976.659544][   T10]      ___sys_sendmsg+0xee/0x170
[ 1976.659544][   T10]      __sys_sendmsg+0xcd/0x170
[ 1976.659544][   T10]      do_syscall_64+0xc6/0x1e0
[ 1976.659544][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1976.659544][   T10] 
[ 1986.897803][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1986.898260][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1986.898260][   T10]      dst_init+0x84/0x4a0
[ 1986.898260][   T10]      dst_alloc+0x97/0x150
[ 1986.898260][   T10]      ip6_dst_alloc+0x23/0x90
[ 1986.898260][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1986.898260][   T10]      ip6_pol_route+0x56f/0x840
[ 1986.898260][   T10]      fib6_rule_lookup+0x456/0x630
[ 1986.898260][   T10]      ip6_route_input+0x59c/0xa50
[ 1986.898260][   T10]      ipv6_rcv+0x397/0x810
[ 1986.898260][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1986.898260][   T10]      process_backlog+0x101/0x620
[ 1986.898260][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1986.898260][   T10]      net_rx_action+0x495/0xbe0
[ 1986.898260][   T10]      __do_softirq+0x1b5/0x7f6
[ 1986.898260][   T10] 
[ 1986.899944][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1986.899944][   T10]      netdev_get_by_index+0x5e/0x80
[ 1986.899944][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1986.899944][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1986.899944][   T10]      ip6_route_add+0x1c/0x140
[ 1986.899944][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1986.899944][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1986.899944][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1986.899944][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1986.899944][   T10]      netlink_rcv_skb+0x130/0x360
[ 1986.899944][   T10]      netlink_unicast+0x449/0x710
[ 1986.899944][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1986.899944][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1986.899944][   T10]      ___sys_sendmsg+0xee/0x170
[ 1986.899944][   T10]      __sys_sendmsg+0xcd/0x170
[ 1986.899944][   T10]      do_syscall_64+0xc6/0x1e0
[ 1986.899944][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1986.899944][   T10] 
[ 1986.901962][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1986.901962][   T10]      netdev_get_by_index+0x5e/0x80
[ 1986.901962][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1986.901962][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1986.901962][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1986.901962][   T10]      ipv6_add_addr+0x411/0x2000
[ 1986.901962][   T10]      inet6_addr_add+0x30e/0xa40
[ 1986.901962][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1986.901962][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1986.901962][   T10]      netlink_rcv_skb+0x130/0x360
[ 1986.901962][   T10]      netlink_unicast+0x449/0x710
[ 1986.901962][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1986.901962][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1986.901962][   T10]      ___sys_sendmsg+0xee/0x170
[ 1986.901962][   T10]      __sys_sendmsg+0xcd/0x170
[ 1986.901962][   T10]      do_syscall_64+0xc6/0x1e0
[ 1986.901962][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1986.901962][   T10] 
[ 1986.903984][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1986.903984][   T10]      netdev_get_by_index+0x5e/0x80
[ 1986.903984][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1986.903984][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1986.903984][   T10]      ip6_route_add+0x1c/0x140
[ 1986.903984][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1986.903984][   T10]      addrconf_add_dev+0xe2/0x170
[ 1986.903984][   T10]      inet6_addr_add+0x12f/0xa40
[ 1986.903984][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1986.903984][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1986.903984][   T10]      netlink_rcv_skb+0x130/0x360
[ 1986.903984][   T10]      netlink_unicast+0x449/0x710
[ 1986.903984][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1986.903984][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1986.903984][   T10]      ___sys_sendmsg+0xee/0x170
[ 1986.903984][   T10]      __sys_sendmsg+0xcd/0x170
[ 1986.903984][   T10]      do_syscall_64+0xc6/0x1e0
[ 1986.903984][   T10] 
[ 1986.906877][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1986.906877][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1986.906877][   T10]      ipv6_find_idev+0x102/0x170
[ 1986.906877][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1986.906877][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1986.906877][   T10]      netlink_rcv_skb+0x130/0x360
[ 1986.906877][   T10]      netlink_unicast+0x449/0x710
[ 1986.906877][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1986.906877][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1986.906877][   T10]      ___sys_sendmsg+0xee/0x170
[ 1986.906877][   T10]      __sys_sendmsg+0xcd/0x170
[ 1986.906877][   T10]      do_syscall_64+0xc6/0x1e0
[ 1986.906877][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1986.906877][   T10] 
[ 1986.908424][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1986.908424][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1986.908424][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1986.908424][   T10]      ipv6_find_idev+0x102/0x170
[ 1986.908424][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1986.908424][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1986.908424][   T10]      netlink_rcv_skb+0x130/0x360
[ 1986.908424][   T10]      netlink_unicast+0x449/0x710
[ 1986.908424][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1986.908424][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1986.908424][   T10]      ___sys_sendmsg+0xee/0x170
[ 1986.908424][   T10]      __sys_sendmsg+0xcd/0x170
[ 1986.908424][   T10]      do_syscall_64+0xc6/0x1e0
[ 1986.908424][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1986.908424][   T10] 
[ 1986.910126][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1986.910370][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1986.910370][   T10]      dst_init+0x84/0x4a0
[ 1986.910370][   T10]      dst_alloc+0x97/0x150
[ 1986.910370][   T10]      ip6_dst_alloc+0x23/0x90
[ 1986.910370][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1986.910370][   T10]      ip6_pol_route+0x56f/0x840
[ 1986.910370][   T10]      fib6_rule_lookup+0x456/0x630
[ 1986.910370][   T10]      ip6_route_input+0x59c/0xa50
[ 1986.910370][   T10]      ipv6_rcv+0x397/0x810
[ 1986.910370][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1986.910370][   T10]      process_backlog+0x101/0x620
[ 1986.910370][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1986.910370][   T10]      net_rx_action+0x495/0xbe0
[ 1986.910370][   T10]      __do_softirq+0x1b5/0x7f6
[ 1986.910370][   T10] 
[ 1986.912027][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1986.912027][   T10]      netdev_get_by_index+0x5e/0x80
[ 1986.912027][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1986.912027][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1986.912027][   T10]      ip6_route_add+0x1c/0x140
[ 1986.912027][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1986.912027][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1986.912027][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1986.912027][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1986.912027][   T10]      netlink_rcv_skb+0x130/0x360
[ 1986.912027][   T10]      netlink_unicast+0x449/0x710
[ 1986.912027][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1986.912027][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1986.912027][   T10]      ___sys_sendmsg+0xee/0x170
[ 1986.912027][   T10]      __sys_sendmsg+0xcd/0x170
[ 1986.912027][   T10]      do_syscall_64+0xc6/0x1e0
[ 1986.912027][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1986.912027][   T10] 
[ 1986.914038][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1986.914038][   T10]      netdev_get_by_index+0x5e/0x80
[ 1986.914038][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1986.914038][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1986.914038][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1986.914038][   T10]      ipv6_add_addr+0x411/0x2000
[ 1986.914038][   T10]      inet6_addr_add+0x30e/0xa40
[ 1986.914038][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1986.914038][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1986.914038][   T10]      netlink_rcv_skb+0x130/0x360
[ 1986.914038][   T10]      netlink_unicast+0x449/0x710
[ 1986.914038][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1986.914038][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1986.914038][   T10]      ___sys_sendmsg+0xee/0x170
[ 1986.914038][   T10]      __sys_sendmsg+0xcd/0x170
[ 1986.914038][   T10]      do_syscall_64+0xc6/0x1e0
[ 1986.914038][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1986.914038][   T10] 
[ 1986.916051][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1986.916051][   T10]      netdev_get_by_index+0x5e/0x80
[ 1986.916051][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1986.916051][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1986.916051][   T10]      ip6_route_add+0x1c/0x140
[ 1986.916051][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1986.916051][   T10]      addrconf_add_dev+0xe2/0x170
[ 1986.916051][   T10]      inet6_addr_add+0x12f/0xa40
[ 1986.916051][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1986.916051][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1986.916051][   T10]      netlink_rcv_skb+0x130/0x360
[ 1986.916051][   T10]      netlink_unicast+0x449/0x710
[ 1986.916051][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1986.916051][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1986.916051][   T10]      ___sys_sendmsg+0xee/0x170
[ 1986.916051][   T10]      __sys_sendmsg+0xcd/0x170
[ 1986.916051][   T10]      do_syscall_64+0xc6/0x1e0
[ 1986.916051][   T10] 
[ 1986.918020][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1986.918020][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1986.918020][   T10]      ipv6_find_idev+0x102/0x170
[ 1986.918020][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1986.918020][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1986.918020][   T10]      netlink_rcv_skb+0x130/0x360
[ 1986.918020][   T10]      netlink_unicast+0x449/0x710
[ 1986.918020][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1986.918020][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1986.918020][   T10]      ___sys_sendmsg+0xee/0x170
[ 1986.918020][   T10]      __sys_sendmsg+0xcd/0x170
[ 1986.918020][   T10]      do_syscall_64+0xc6/0x1e0
[ 1986.918020][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1986.918020][   T10] 
[ 1986.919570][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1986.919570][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1986.919570][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1986.919570][   T10]      ipv6_find_idev+0x102/0x170
[ 1986.919570][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1986.919570][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1986.919570][   T10]      netlink_rcv_skb+0x130/0x360
[ 1986.919570][   T10]      netlink_unicast+0x449/0x710
[ 1986.919570][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1986.919570][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1986.919570][   T10]      ___sys_sendmsg+0xee/0x170
[ 1986.919570][   T10]      __sys_sendmsg+0xcd/0x170
[ 1986.919570][   T10]      do_syscall_64+0xc6/0x1e0
[ 1986.919570][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1986.919570][   T10] 
[ 1997.161787][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 1997.162274][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1997.162274][   T10]      dst_init+0x84/0x4a0
[ 1997.162274][   T10]      dst_alloc+0x97/0x150
[ 1997.162274][   T10]      ip6_dst_alloc+0x23/0x90
[ 1997.162274][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1997.162274][   T10]      ip6_pol_route+0x56f/0x840
[ 1997.162274][   T10]      fib6_rule_lookup+0x456/0x630
[ 1997.162274][   T10]      ip6_route_input+0x59c/0xa50
[ 1997.162274][   T10]      ipv6_rcv+0x397/0x810
[ 1997.162274][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1997.162274][   T10]      process_backlog+0x101/0x620
[ 1997.162274][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1997.162274][   T10]      net_rx_action+0x495/0xbe0
[ 1997.162274][   T10]      __do_softirq+0x1b5/0x7f6
[ 1997.162274][   T10] 
[ 1997.163985][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1997.163985][   T10]      netdev_get_by_index+0x5e/0x80
[ 1997.163985][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1997.163985][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1997.163985][   T10]      ip6_route_add+0x1c/0x140
[ 1997.163985][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1997.163985][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1997.163985][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1997.163985][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1997.163985][   T10]      netlink_rcv_skb+0x130/0x360
[ 1997.163985][   T10]      netlink_unicast+0x449/0x710
[ 1997.163985][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1997.163985][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1997.163985][   T10]      ___sys_sendmsg+0xee/0x170
[ 1997.163985][   T10]      __sys_sendmsg+0xcd/0x170
[ 1997.163985][   T10]      do_syscall_64+0xc6/0x1e0
[ 1997.163985][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1997.163985][   T10] 
[ 1997.166420][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1997.166420][   T10]      netdev_get_by_index+0x5e/0x80
[ 1997.166420][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1997.166420][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1997.166420][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1997.166420][   T10]      ipv6_add_addr+0x411/0x2000
[ 1997.166420][   T10]      inet6_addr_add+0x30e/0xa40
[ 1997.166420][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1997.166420][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1997.166420][   T10]      netlink_rcv_skb+0x130/0x360
[ 1997.166420][   T10]      netlink_unicast+0x449/0x710
[ 1997.166420][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1997.166420][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1997.166420][   T10]      ___sys_sendmsg+0xee/0x170
[ 1997.166420][   T10]      __sys_sendmsg+0xcd/0x170
[ 1997.166420][   T10]      do_syscall_64+0xc6/0x1e0
[ 1997.166420][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1997.166420][   T10] 
[ 1997.168458][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1997.168458][   T10]      netdev_get_by_index+0x5e/0x80
[ 1997.168458][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1997.168458][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1997.168458][   T10]      ip6_route_add+0x1c/0x140
[ 1997.168458][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1997.168458][   T10]      addrconf_add_dev+0xe2/0x170
[ 1997.168458][   T10]      inet6_addr_add+0x12f/0xa40
[ 1997.168458][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1997.168458][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1997.168458][   T10]      netlink_rcv_skb+0x130/0x360
[ 1997.168458][   T10]      netlink_unicast+0x449/0x710
[ 1997.168458][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1997.168458][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1997.168458][   T10]      ___sys_sendmsg+0xee/0x170
[ 1997.168458][   T10]      __sys_sendmsg+0xcd/0x170
[ 1997.168458][   T10]      do_syscall_64+0xc6/0x1e0
[ 1997.168458][   T10] 
[ 1997.170460][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1997.170460][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1997.170460][   T10]      ipv6_find_idev+0x102/0x170
[ 1997.170460][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1997.170460][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1997.170460][   T10]      netlink_rcv_skb+0x130/0x360
[ 1997.170460][   T10]      netlink_unicast+0x449/0x710
[ 1997.170460][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1997.170460][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1997.170460][   T10]      ___sys_sendmsg+0xee/0x170
[ 1997.170460][   T10]      __sys_sendmsg+0xcd/0x170
[ 1997.170460][   T10]      do_syscall_64+0xc6/0x1e0
[ 1997.170460][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1997.170460][   T10] 
[ 1997.172034][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 1997.172034][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1997.172034][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1997.172034][   T10]      ipv6_find_idev+0x102/0x170
[ 1997.172034][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1997.172034][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1997.172034][   T10]      netlink_rcv_skb+0x130/0x360
[ 1997.172034][   T10]      netlink_unicast+0x449/0x710
[ 1997.172034][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1997.172034][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1997.172034][   T10]      ___sys_sendmsg+0xee/0x170
[ 1997.172034][   T10]      __sys_sendmsg+0xcd/0x170
[ 1997.172034][   T10]      do_syscall_64+0xc6/0x1e0
[ 1997.172034][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1997.172034][   T10] 
[ 1997.173789][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 1997.174040][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1997.174040][   T10]      dst_init+0x84/0x4a0
[ 1997.174040][   T10]      dst_alloc+0x97/0x150
[ 1997.174040][   T10]      ip6_dst_alloc+0x23/0x90
[ 1997.174040][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1997.174040][   T10]      ip6_pol_route+0x56f/0x840
[ 1997.174040][   T10]      fib6_rule_lookup+0x456/0x630
[ 1997.174040][   T10]      ip6_route_input+0x59c/0xa50
[ 1997.174040][   T10]      ipv6_rcv+0x397/0x810
[ 1997.174040][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1997.174040][   T10]      process_backlog+0x101/0x620
[ 1997.174040][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 1997.174040][   T10]      net_rx_action+0x495/0xbe0
[ 1997.174040][   T10]      __do_softirq+0x1b5/0x7f6
[ 1997.174040][   T10] 
[ 1997.175704][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1997.175704][   T10]      netdev_get_by_index+0x5e/0x80
[ 1997.175704][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1997.175704][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1997.175704][   T10]      ip6_route_add+0x1c/0x140
[ 1997.175704][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1997.175704][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1997.175704][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1997.175704][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1997.175704][   T10]      netlink_rcv_skb+0x130/0x360
[ 1997.175704][   T10]      netlink_unicast+0x449/0x710
[ 1997.175704][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1997.175704][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1997.175704][   T10]      ___sys_sendmsg+0xee/0x170
[ 1997.175704][   T10]      __sys_sendmsg+0xcd/0x170
[ 1997.175704][   T10]      do_syscall_64+0xc6/0x1e0
[ 1997.175704][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1997.175704][   T10] 
[ 1997.178007][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1997.178007][   T10]      netdev_get_by_index+0x5e/0x80
[ 1997.178007][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1997.178007][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1997.178007][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1997.178007][   T10]      ipv6_add_addr+0x411/0x2000
[ 1997.178007][   T10]      inet6_addr_add+0x30e/0xa40
[ 1997.178007][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1997.178007][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1997.178007][   T10]      netlink_rcv_skb+0x130/0x360
[ 1997.178007][   T10]      netlink_unicast+0x449/0x710
[ 1997.178007][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1997.178007][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1997.178007][   T10]      ___sys_sendmsg+0xee/0x170
[ 1997.178007][   T10]      __sys_sendmsg+0xcd/0x170
[ 1997.178007][   T10]      do_syscall_64+0xc6/0x1e0
[ 1997.178007][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1997.178007][   T10] 
[ 1997.180037][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1997.180037][   T10]      netdev_get_by_index+0x5e/0x80
[ 1997.180037][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1997.180037][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1997.180037][   T10]      ip6_route_add+0x1c/0x140
[ 1997.180037][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1997.180037][   T10]      addrconf_add_dev+0xe2/0x170
[ 1997.180037][   T10]      inet6_addr_add+0x12f/0xa40
[ 1997.180037][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1997.180037][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1997.180037][   T10]      netlink_rcv_skb+0x130/0x360
[ 1997.180037][   T10]      netlink_unicast+0x449/0x710
[ 1997.180037][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1997.180037][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1997.180037][   T10]      ___sys_sendmsg+0xee/0x170
[ 1997.180037][   T10]      __sys_sendmsg+0xcd/0x170
[ 1997.180037][   T10]      do_syscall_64+0xc6/0x1e0
[ 1997.180037][   T10] 
[ 1997.182031][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1997.182031][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1997.182031][   T10]      ipv6_find_idev+0x102/0x170
[ 1997.182031][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1997.182031][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1997.182031][   T10]      netlink_rcv_skb+0x130/0x360
[ 1997.182031][   T10]      netlink_unicast+0x449/0x710
[ 1997.182031][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1997.182031][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1997.182031][   T10]      ___sys_sendmsg+0xee/0x170
[ 1997.182031][   T10]      __sys_sendmsg+0xcd/0x170
[ 1997.182031][   T10]      do_syscall_64+0xc6/0x1e0
[ 1997.182031][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1997.182031][   T10] 
[ 1997.183601][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 1997.183601][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1997.183601][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1997.183601][   T10]      ipv6_find_idev+0x102/0x170
[ 1997.183601][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1997.183601][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1997.183601][   T10]      netlink_rcv_skb+0x130/0x360
[ 1997.183601][   T10]      netlink_unicast+0x449/0x710
[ 1997.183601][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1997.183601][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1997.183601][   T10]      ___sys_sendmsg+0xee/0x170
[ 1997.183601][   T10]      __sys_sendmsg+0xcd/0x170
[ 1997.183601][   T10]      do_syscall_64+0xc6/0x1e0
[ 1997.183601][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1997.183601][   T10] 
[ 2007.193740][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2007.194225][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2007.194225][   T10]      dst_init+0x84/0x4a0
[ 2007.194225][   T10]      dst_alloc+0x97/0x150
[ 2007.194225][   T10]      ip6_dst_alloc+0x23/0x90
[ 2007.194225][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2007.194225][   T10]      ip6_pol_route+0x56f/0x840
[ 2007.194225][   T10]      fib6_rule_lookup+0x456/0x630
[ 2007.194225][   T10]      ip6_route_input+0x59c/0xa50
[ 2007.194225][   T10]      ipv6_rcv+0x397/0x810
[ 2007.194225][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2007.194225][   T10]      process_backlog+0x101/0x620
[ 2007.194225][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2007.194225][   T10]      net_rx_action+0x495/0xbe0
[ 2007.194225][   T10]      __do_softirq+0x1b5/0x7f6
[ 2007.194225][   T10] 
[ 2007.195931][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2007.195931][   T10]      netdev_get_by_index+0x5e/0x80
[ 2007.195931][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2007.195931][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2007.195931][   T10]      ip6_route_add+0x1c/0x140
[ 2007.195931][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2007.195931][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2007.195931][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2007.195931][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2007.195931][   T10]      netlink_rcv_skb+0x130/0x360
[ 2007.195931][   T10]      netlink_unicast+0x449/0x710
[ 2007.195931][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2007.195931][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2007.195931][   T10]      ___sys_sendmsg+0xee/0x170
[ 2007.195931][   T10]      __sys_sendmsg+0xcd/0x170
[ 2007.195931][   T10]      do_syscall_64+0xc6/0x1e0
[ 2007.195931][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2007.195931][   T10] 
[ 2007.197975][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2007.197975][   T10]      netdev_get_by_index+0x5e/0x80
[ 2007.197975][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2007.197975][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2007.197975][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2007.197975][   T10]      ipv6_add_addr+0x411/0x2000
[ 2007.197975][   T10]      inet6_addr_add+0x30e/0xa40
[ 2007.197975][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2007.197975][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2007.197975][   T10]      netlink_rcv_skb+0x130/0x360
[ 2007.197975][   T10]      netlink_unicast+0x449/0x710
[ 2007.197975][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2007.197975][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2007.197975][   T10]      ___sys_sendmsg+0xee/0x170
[ 2007.197975][   T10]      __sys_sendmsg+0xcd/0x170
[ 2007.197975][   T10]      do_syscall_64+0xc6/0x1e0
[ 2007.197975][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2007.197975][   T10] 
[ 2007.200029][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2007.200029][   T10]      netdev_get_by_index+0x5e/0x80
[ 2007.200029][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2007.200029][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2007.200029][   T10]      ip6_route_add+0x1c/0x140
[ 2007.200029][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2007.200029][   T10]      addrconf_add_dev+0xe2/0x170
[ 2007.200029][   T10]      inet6_addr_add+0x12f/0xa40
[ 2007.200029][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2007.200029][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2007.200029][   T10]      netlink_rcv_skb+0x130/0x360
[ 2007.200029][   T10]      netlink_unicast+0x449/0x710
[ 2007.200029][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2007.200029][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2007.200029][   T10]      ___sys_sendmsg+0xee/0x170
[ 2007.200029][   T10]      __sys_sendmsg+0xcd/0x170
[ 2007.200029][   T10]      do_syscall_64+0xc6/0x1e0
[ 2007.200029][   T10] 
[ 2007.202020][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2007.202020][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2007.202020][   T10]      ipv6_find_idev+0x102/0x170
[ 2007.202020][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2007.202020][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2007.202020][   T10]      netlink_rcv_skb+0x130/0x360
[ 2007.202020][   T10]      netlink_unicast+0x449/0x710
[ 2007.202020][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2007.202020][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2007.202020][   T10]      ___sys_sendmsg+0xee/0x170
[ 2007.202020][   T10]      __sys_sendmsg+0xcd/0x170
[ 2007.202020][   T10]      do_syscall_64+0xc6/0x1e0
[ 2007.202020][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2007.202020][   T10] 
[ 2007.203599][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2007.203599][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2007.203599][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2007.203599][   T10]      ipv6_find_idev+0x102/0x170
[ 2007.203599][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2007.203599][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2007.203599][   T10]      netlink_rcv_skb+0x130/0x360
[ 2007.203599][   T10]      netlink_unicast+0x449/0x710
[ 2007.203599][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2007.203599][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2007.203599][   T10]      ___sys_sendmsg+0xee/0x170
[ 2007.203599][   T10]      __sys_sendmsg+0xcd/0x170
[ 2007.203599][   T10]      do_syscall_64+0xc6/0x1e0
[ 2007.203599][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2007.203599][   T10] 
[ 2007.205328][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2007.205577][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2007.205577][   T10]      dst_init+0x84/0x4a0
[ 2007.205577][   T10]      dst_alloc+0x97/0x150
[ 2007.205577][   T10]      ip6_dst_alloc+0x23/0x90
[ 2007.205577][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2007.205577][   T10]      ip6_pol_route+0x56f/0x840
[ 2007.205577][   T10]      fib6_rule_lookup+0x456/0x630
[ 2007.205577][   T10]      ip6_route_input+0x59c/0xa50
[ 2007.205577][   T10]      ipv6_rcv+0x397/0x810
[ 2007.205577][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2007.205577][   T10]      process_backlog+0x101/0x620
[ 2007.205577][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2007.205577][   T10]      net_rx_action+0x495/0xbe0
[ 2007.205577][   T10]      __do_softirq+0x1b5/0x7f6
[ 2007.205577][   T10] 
[ 2007.207237][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2007.207237][   T10]      netdev_get_by_index+0x5e/0x80
[ 2007.207237][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2007.207237][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2007.207237][   T10]      ip6_route_add+0x1c/0x140
[ 2007.207237][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2007.207237][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2007.207237][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2007.207237][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2007.207237][   T10]      netlink_rcv_skb+0x130/0x360
[ 2007.207237][   T10]      netlink_unicast+0x449/0x710
[ 2007.207237][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2007.207237][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2007.207237][   T10]      ___sys_sendmsg+0xee/0x170
[ 2007.207237][   T10]      __sys_sendmsg+0xcd/0x170
[ 2007.207237][   T10]      do_syscall_64+0xc6/0x1e0
[ 2007.207237][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2007.207237][   T10] 
[ 2007.209265][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2007.209265][   T10]      netdev_get_by_index+0x5e/0x80
[ 2007.209265][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2007.209265][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2007.209265][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2007.209265][   T10]      ipv6_add_addr+0x411/0x2000
[ 2007.209265][   T10]      inet6_addr_add+0x30e/0xa40
[ 2007.209265][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2007.209265][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2007.209265][   T10]      netlink_rcv_skb+0x130/0x360
[ 2007.209265][   T10]      netlink_unicast+0x449/0x710
[ 2007.209265][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2007.209265][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2007.209265][   T10]      ___sys_sendmsg+0xee/0x170
[ 2007.209265][   T10]      __sys_sendmsg+0xcd/0x170
[ 2007.209265][   T10]      do_syscall_64+0xc6/0x1e0
[ 2007.209265][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2007.209265][   T10] 
[ 2007.211290][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2007.211290][   T10]      netdev_get_by_index+0x5e/0x80
[ 2007.211290][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2007.211290][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2007.211290][   T10]      ip6_route_add+0x1c/0x140
[ 2007.211290][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2007.211290][   T10]      addrconf_add_dev+0xe2/0x170
[ 2007.211290][   T10]      inet6_addr_add+0x12f/0xa40
[ 2007.211290][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2007.211290][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2007.211290][   T10]      netlink_rcv_skb+0x130/0x360
[ 2007.211290][   T10]      netlink_unicast+0x449/0x710
[ 2007.211290][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2007.211290][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2007.211290][   T10]      ___sys_sendmsg+0xee/0x170
[ 2007.211290][   T10]      __sys_sendmsg+0xcd/0x170
[ 2007.211290][   T10]      do_syscall_64+0xc6/0x1e0
[ 2007.211290][   T10] 
[ 2007.213282][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2007.213282][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2007.213282][   T10]      ipv6_find_idev+0x102/0x170
[ 2007.213282][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2007.213282][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2007.213282][   T10]      netlink_rcv_skb+0x130/0x360
[ 2007.213282][   T10]      netlink_unicast+0x449/0x710
[ 2007.213282][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2007.213282][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2007.213282][   T10]      ___sys_sendmsg+0xee/0x170
[ 2007.213282][   T10]      __sys_sendmsg+0xcd/0x170
[ 2007.213282][   T10]      do_syscall_64+0xc6/0x1e0
[ 2007.213282][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2007.213282][   T10] 
[ 2007.214839][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2007.214839][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2007.214839][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2007.214839][   T10]      ipv6_find_idev+0x102/0x170
[ 2007.214839][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2007.214839][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2007.214839][   T10]      netlink_rcv_skb+0x130/0x360
[ 2007.214839][   T10]      netlink_unicast+0x449/0x710
[ 2007.214839][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2007.214839][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2007.214839][   T10]      ___sys_sendmsg+0xee/0x170
[ 2007.214839][   T10]      __sys_sendmsg+0xcd/0x170
[ 2007.214839][   T10]      do_syscall_64+0xc6/0x1e0
[ 2007.214839][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2007.214839][   T10] 
[ 2017.465793][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2017.466276][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2017.466276][   T10]      dst_init+0x84/0x4a0
[ 2017.466276][   T10]      dst_alloc+0x97/0x150
[ 2017.466276][   T10]      ip6_dst_alloc+0x23/0x90
[ 2017.466276][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2017.466276][   T10]      ip6_pol_route+0x56f/0x840
[ 2017.466276][   T10]      fib6_rule_lookup+0x456/0x630
[ 2017.466276][   T10]      ip6_route_input+0x59c/0xa50
[ 2017.466276][   T10]      ipv6_rcv+0x397/0x810
[ 2017.466276][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2017.466276][   T10]      process_backlog+0x101/0x620
[ 2017.466276][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2017.466276][   T10]      net_rx_action+0x495/0xbe0
[ 2017.466276][   T10]      __do_softirq+0x1b5/0x7f6
[ 2017.466276][   T10] 
[ 2017.467988][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2017.467988][   T10]      netdev_get_by_index+0x5e/0x80
[ 2017.467988][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2017.467988][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2017.467988][   T10]      ip6_route_add+0x1c/0x140
[ 2017.467988][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2017.467988][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2017.467988][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2017.467988][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2017.467988][   T10]      netlink_rcv_skb+0x130/0x360
[ 2017.467988][   T10]      netlink_unicast+0x449/0x710
[ 2017.467988][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2017.467988][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2017.467988][   T10]      ___sys_sendmsg+0xee/0x170
[ 2017.467988][   T10]      __sys_sendmsg+0xcd/0x170
[ 2017.467988][   T10]      do_syscall_64+0xc6/0x1e0
[ 2017.467988][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2017.467988][   T10] 
[ 2017.470042][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2017.470042][   T10]      netdev_get_by_index+0x5e/0x80
[ 2017.470042][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2017.470042][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2017.470042][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2017.470042][   T10]      ipv6_add_addr+0x411/0x2000
[ 2017.470042][   T10]      inet6_addr_add+0x30e/0xa40
[ 2017.470042][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2017.470042][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2017.470042][   T10]      netlink_rcv_skb+0x130/0x360
[ 2017.470042][   T10]      netlink_unicast+0x449/0x710
[ 2017.470042][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2017.470042][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2017.470042][   T10]      ___sys_sendmsg+0xee/0x170
[ 2017.470042][   T10]      __sys_sendmsg+0xcd/0x170
[ 2017.470042][   T10]      do_syscall_64+0xc6/0x1e0
[ 2017.470042][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2017.470042][   T10] 
[ 2017.472081][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2017.472081][   T10]      netdev_get_by_index+0x5e/0x80
[ 2017.472081][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2017.472081][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2017.472081][   T10]      ip6_route_add+0x1c/0x140
[ 2017.472081][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2017.472081][   T10]      addrconf_add_dev+0xe2/0x170
[ 2017.472081][   T10]      inet6_addr_add+0x12f/0xa40
[ 2017.472081][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2017.472081][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2017.472081][   T10]      netlink_rcv_skb+0x130/0x360
[ 2017.472081][   T10]      netlink_unicast+0x449/0x710
[ 2017.472081][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2017.472081][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2017.472081][   T10]      ___sys_sendmsg+0xee/0x170
[ 2017.472081][   T10]      __sys_sendmsg+0xcd/0x170
[ 2017.472081][   T10]      do_syscall_64+0xc6/0x1e0
[ 2017.472081][   T10] 
[ 2017.474116][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2017.474116][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2017.474116][   T10]      ipv6_find_idev+0x102/0x170
[ 2017.474116][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2017.474116][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2017.474116][   T10]      netlink_rcv_skb+0x130/0x360
[ 2017.474116][   T10]      netlink_unicast+0x449/0x710
[ 2017.474116][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2017.474116][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2017.474116][   T10]      ___sys_sendmsg+0xee/0x170
[ 2017.474116][   T10]      __sys_sendmsg+0xcd/0x170
[ 2017.474116][   T10]      do_syscall_64+0xc6/0x1e0
[ 2017.474116][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2017.474116][   T10] 
[ 2017.475688][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2017.475688][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2017.475688][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2017.475688][   T10]      ipv6_find_idev+0x102/0x170
[ 2017.475688][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2017.475688][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2017.475688][   T10]      netlink_rcv_skb+0x130/0x360
[ 2017.475688][   T10]      netlink_unicast+0x449/0x710
[ 2017.475688][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2017.475688][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2017.475688][   T10]      ___sys_sendmsg+0xee/0x170
[ 2017.475688][   T10]      __sys_sendmsg+0xcd/0x170
[ 2017.475688][   T10]      do_syscall_64+0xc6/0x1e0
[ 2017.475688][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2017.475688][   T10] 
[ 2017.477423][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2017.477683][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2017.477683][   T10]      dst_init+0x84/0x4a0
[ 2017.477683][   T10]      dst_alloc+0x97/0x150
[ 2017.477683][   T10]      ip6_dst_alloc+0x23/0x90
[ 2017.477683][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2017.477683][   T10]      ip6_pol_route+0x56f/0x840
[ 2017.477683][   T10]      fib6_rule_lookup+0x456/0x630
[ 2017.477683][   T10]      ip6_route_input+0x59c/0xa50
[ 2017.477683][   T10]      ipv6_rcv+0x397/0x810
[ 2017.477683][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2017.477683][   T10]      process_backlog+0x101/0x620
[ 2017.477683][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2017.477683][   T10]      net_rx_action+0x495/0xbe0
[ 2017.477683][   T10]      __do_softirq+0x1b5/0x7f6
[ 2017.477683][   T10] 
[ 2017.479348][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2017.479348][   T10]      netdev_get_by_index+0x5e/0x80
[ 2017.479348][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2017.479348][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2017.479348][   T10]      ip6_route_add+0x1c/0x140
[ 2017.479348][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2017.479348][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2017.479348][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2017.479348][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2017.479348][   T10]      netlink_rcv_skb+0x130/0x360
[ 2017.479348][   T10]      netlink_unicast+0x449/0x710
[ 2017.479348][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2017.479348][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2017.479348][   T10]      ___sys_sendmsg+0xee/0x170
[ 2017.479348][   T10]      __sys_sendmsg+0xcd/0x170
[ 2017.479348][   T10]      do_syscall_64+0xc6/0x1e0
[ 2017.479348][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2017.479348][   T10] 
[ 2017.481381][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2017.481381][   T10]      netdev_get_by_index+0x5e/0x80
[ 2017.481381][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2017.481381][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2017.481381][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2017.481381][   T10]      ipv6_add_addr+0x411/0x2000
[ 2017.481381][   T10]      inet6_addr_add+0x30e/0xa40
[ 2017.481381][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2017.481381][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2017.481381][   T10]      netlink_rcv_skb+0x130/0x360
[ 2017.481381][   T10]      netlink_unicast+0x449/0x710
[ 2017.481381][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2017.481381][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2017.481381][   T10]      ___sys_sendmsg+0xee/0x170
[ 2017.481381][   T10]      __sys_sendmsg+0xcd/0x170
[ 2017.481381][   T10]      do_syscall_64+0xc6/0x1e0
[ 2017.481381][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2017.481381][   T10] 
[ 2017.483416][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2017.483416][   T10]      netdev_get_by_index+0x5e/0x80
[ 2017.483416][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2017.483416][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2017.483416][   T10]      ip6_route_add+0x1c/0x140
[ 2017.483416][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2017.483416][   T10]      addrconf_add_dev+0xe2/0x170
[ 2017.483416][   T10]      inet6_addr_add+0x12f/0xa40
[ 2017.483416][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2017.483416][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2017.483416][   T10]      netlink_rcv_skb+0x130/0x360
[ 2017.483416][   T10]      netlink_unicast+0x449/0x710
[ 2017.483416][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2017.483416][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2017.483416][   T10]      ___sys_sendmsg+0xee/0x170
[ 2017.483416][   T10]      __sys_sendmsg+0xcd/0x170
[ 2017.483416][   T10]      do_syscall_64+0xc6/0x1e0
[ 2017.483416][   T10] 
[ 2017.485413][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2017.485413][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2017.485413][   T10]      ipv6_find_idev+0x102/0x170
[ 2017.485413][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2017.485413][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2017.485413][   T10]      netlink_rcv_skb+0x130/0x360
[ 2017.485413][   T10]      netlink_unicast+0x449/0x710
[ 2017.485413][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2017.485413][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2017.485413][   T10]      ___sys_sendmsg+0xee/0x170
[ 2017.485413][   T10]      __sys_sendmsg+0xcd/0x170
[ 2017.485413][   T10]      do_syscall_64+0xc6/0x1e0
[ 2017.485413][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2017.485413][   T10] 
[ 2017.486976][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2017.486976][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2017.486976][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2017.486976][   T10]      ipv6_find_idev+0x102/0x170
[ 2017.486976][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2017.486976][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2017.486976][   T10]      netlink_rcv_skb+0x130/0x360
[ 2017.486976][   T10]      netlink_unicast+0x449/0x710
[ 2017.486976][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2017.486976][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2017.486976][   T10]      ___sys_sendmsg+0xee/0x170
[ 2017.486976][   T10]      __sys_sendmsg+0xcd/0x170
[ 2017.486976][   T10]      do_syscall_64+0xc6/0x1e0
[ 2017.486976][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2017.486976][   T10] 
[ 2027.737706][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2027.738193][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2027.738193][   T10]      dst_init+0x84/0x4a0
[ 2027.738193][   T10]      dst_alloc+0x97/0x150
[ 2027.738193][   T10]      ip6_dst_alloc+0x23/0x90
[ 2027.738193][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2027.738193][   T10]      ip6_pol_route+0x56f/0x840
[ 2027.738193][   T10]      fib6_rule_lookup+0x456/0x630
[ 2027.738193][   T10]      ip6_route_input+0x59c/0xa50
[ 2027.738193][   T10]      ipv6_rcv+0x397/0x810
[ 2027.738193][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2027.738193][   T10]      process_backlog+0x101/0x620
[ 2027.738193][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2027.738193][   T10]      net_rx_action+0x495/0xbe0
[ 2027.738193][   T10]      __do_softirq+0x1b5/0x7f6
[ 2027.738193][   T10] 
[ 2027.739919][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2027.739919][   T10]      netdev_get_by_index+0x5e/0x80
[ 2027.739919][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2027.739919][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2027.739919][   T10]      ip6_route_add+0x1c/0x140
[ 2027.739919][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2027.739919][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2027.739919][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2027.739919][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2027.739919][   T10]      netlink_rcv_skb+0x130/0x360
[ 2027.739919][   T10]      netlink_unicast+0x449/0x710
[ 2027.739919][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2027.739919][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2027.739919][   T10]      ___sys_sendmsg+0xee/0x170
[ 2027.739919][   T10]      __sys_sendmsg+0xcd/0x170
[ 2027.739919][   T10]      do_syscall_64+0xc6/0x1e0
[ 2027.739919][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2027.739919][   T10] 
[ 2027.741970][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2027.741970][   T10]      netdev_get_by_index+0x5e/0x80
[ 2027.741970][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2027.741970][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2027.741970][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2027.741970][   T10]      ipv6_add_addr+0x411/0x2000
[ 2027.741970][   T10]      inet6_addr_add+0x30e/0xa40
[ 2027.741970][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2027.741970][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2027.741970][   T10]      netlink_rcv_skb+0x130/0x360
[ 2027.741970][   T10]      netlink_unicast+0x449/0x710
[ 2027.741970][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2027.741970][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2027.741970][   T10]      ___sys_sendmsg+0xee/0x170
[ 2027.741970][   T10]      __sys_sendmsg+0xcd/0x170
[ 2027.741970][   T10]      do_syscall_64+0xc6/0x1e0
[ 2027.741970][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2027.741970][   T10] 
[ 2027.744010][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2027.744010][   T10]      netdev_get_by_index+0x5e/0x80
[ 2027.744010][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2027.744010][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2027.744010][   T10]      ip6_route_add+0x1c/0x140
[ 2027.744010][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2027.744010][   T10]      addrconf_add_dev+0xe2/0x170
[ 2027.744010][   T10]      inet6_addr_add+0x12f/0xa40
[ 2027.744010][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2027.744010][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2027.744010][   T10]      netlink_rcv_skb+0x130/0x360
[ 2027.744010][   T10]      netlink_unicast+0x449/0x710
[ 2027.744010][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2027.744010][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2027.744010][   T10]      ___sys_sendmsg+0xee/0x170
[ 2027.744010][   T10]      __sys_sendmsg+0xcd/0x170
[ 2027.744010][   T10]      do_syscall_64+0xc6/0x1e0
[ 2027.744010][   T10] 
[ 2027.746016][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2027.746016][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2027.746016][   T10]      ipv6_find_idev+0x102/0x170
[ 2027.746016][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2027.746016][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2027.746016][   T10]      netlink_rcv_skb+0x130/0x360
[ 2027.746016][   T10]      netlink_unicast+0x449/0x710
[ 2027.746016][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2027.746016][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2027.746016][   T10]      ___sys_sendmsg+0xee/0x170
[ 2027.746016][   T10]      __sys_sendmsg+0xcd/0x170
[ 2027.746016][   T10]      do_syscall_64+0xc6/0x1e0
[ 2027.746016][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2027.746016][   T10] 
[ 2027.747602][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2027.747602][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2027.747602][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2027.747602][   T10]      ipv6_find_idev+0x102/0x170
[ 2027.747602][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2027.747602][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2027.747602][   T10]      netlink_rcv_skb+0x130/0x360
[ 2027.747602][   T10]      netlink_unicast+0x449/0x710
[ 2027.747602][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2027.747602][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2027.747602][   T10]      ___sys_sendmsg+0xee/0x170
[ 2027.747602][   T10]      __sys_sendmsg+0xcd/0x170
[ 2027.747602][   T10]      do_syscall_64+0xc6/0x1e0
[ 2027.747602][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2027.747602][   T10] 
[ 2027.749339][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2027.749590][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2027.749590][   T10]      dst_init+0x84/0x4a0
[ 2027.749590][   T10]      dst_alloc+0x97/0x150
[ 2027.749590][   T10]      ip6_dst_alloc+0x23/0x90
[ 2027.749590][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2027.749590][   T10]      ip6_pol_route+0x56f/0x840
[ 2027.749590][   T10]      fib6_rule_lookup+0x456/0x630
[ 2027.749590][   T10]      ip6_route_input+0x59c/0xa50
[ 2027.749590][   T10]      ipv6_rcv+0x397/0x810
[ 2027.749590][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2027.749590][   T10]      process_backlog+0x101/0x620
[ 2027.749590][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2027.749590][   T10]      net_rx_action+0x495/0xbe0
[ 2027.749590][   T10]      __do_softirq+0x1b5/0x7f6
[ 2027.749590][   T10] 
[ 2027.751258][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2027.751258][   T10]      netdev_get_by_index+0x5e/0x80
[ 2027.751258][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2027.751258][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2027.751258][   T10]      ip6_route_add+0x1c/0x140
[ 2027.751258][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2027.751258][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2027.751258][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2027.751258][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2027.751258][   T10]      netlink_rcv_skb+0x130/0x360
[ 2027.751258][   T10]      netlink_unicast+0x449/0x710
[ 2027.751258][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2027.751258][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2027.751258][   T10]      ___sys_sendmsg+0xee/0x170
[ 2027.751258][   T10]      __sys_sendmsg+0xcd/0x170
[ 2027.751258][   T10]      do_syscall_64+0xc6/0x1e0
[ 2027.751258][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2027.751258][   T10] 
[ 2027.753298][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2027.753298][   T10]      netdev_get_by_index+0x5e/0x80
[ 2027.753298][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2027.753298][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2027.753298][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2027.753298][   T10]      ipv6_add_addr+0x411/0x2000
[ 2027.753298][   T10]      inet6_addr_add+0x30e/0xa40
[ 2027.753298][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2027.753298][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2027.753298][   T10]      netlink_rcv_skb+0x130/0x360
[ 2027.753298][   T10]      netlink_unicast+0x449/0x710
[ 2027.753298][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2027.753298][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2027.753298][   T10]      ___sys_sendmsg+0xee/0x170
[ 2027.753298][   T10]      __sys_sendmsg+0xcd/0x170
[ 2027.753298][   T10]      do_syscall_64+0xc6/0x1e0
[ 2027.753298][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2027.753298][   T10] 
[ 2027.755331][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2027.755331][   T10]      netdev_get_by_index+0x5e/0x80
[ 2027.755331][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2027.755331][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2027.755331][   T10]      ip6_route_add+0x1c/0x140
[ 2027.755331][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2027.755331][   T10]      addrconf_add_dev+0xe2/0x170
[ 2027.755331][   T10]      inet6_addr_add+0x12f/0xa40
[ 2027.755331][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2027.755331][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2027.755331][   T10]      netlink_rcv_skb+0x130/0x360
[ 2027.755331][   T10]      netlink_unicast+0x449/0x710
[ 2027.755331][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2027.755331][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2027.755331][   T10]      ___sys_sendmsg+0xee/0x170
[ 2027.755331][   T10]      __sys_sendmsg+0xcd/0x170
[ 2027.755331][   T10]      do_syscall_64+0xc6/0x1e0
[ 2027.755331][   T10] 
[ 2027.757323][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2027.757323][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2027.757323][   T10]      ipv6_find_idev+0x102/0x170
[ 2027.757323][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2027.757323][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2027.757323][   T10]      netlink_rcv_skb+0x130/0x360
[ 2027.757323][   T10]      netlink_unicast+0x449/0x710
[ 2027.757323][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2027.757323][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2027.757323][   T10]      ___sys_sendmsg+0xee/0x170
[ 2027.757323][   T10]      __sys_sendmsg+0xcd/0x170
[ 2027.757323][   T10]      do_syscall_64+0xc6/0x1e0
[ 2027.757323][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2027.757323][   T10] 
[ 2027.758889][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2027.758889][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2027.758889][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2027.758889][   T10]      ipv6_find_idev+0x102/0x170
[ 2027.758889][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2027.758889][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2027.758889][   T10]      netlink_rcv_skb+0x130/0x360
[ 2027.758889][   T10]      netlink_unicast+0x449/0x710
[ 2027.758889][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2027.758889][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2027.758889][   T10]      ___sys_sendmsg+0xee/0x170
[ 2027.758889][   T10]      __sys_sendmsg+0xcd/0x170
[ 2027.758889][   T10]      do_syscall_64+0xc6/0x1e0
[ 2027.758889][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2027.758889][   T10] 
[ 2037.761783][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2037.762285][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2037.762285][   T10]      dst_init+0x84/0x4a0
[ 2037.762285][   T10]      dst_alloc+0x97/0x150
[ 2037.762285][   T10]      ip6_dst_alloc+0x23/0x90
[ 2037.762285][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2037.762285][   T10]      ip6_pol_route+0x56f/0x840
[ 2037.762285][   T10]      fib6_rule_lookup+0x456/0x630
[ 2037.762285][   T10]      ip6_route_input+0x59c/0xa50
[ 2037.762285][   T10]      ipv6_rcv+0x397/0x810
[ 2037.762285][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2037.762285][   T10]      process_backlog+0x101/0x620
[ 2037.762285][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2037.762285][   T10]      net_rx_action+0x495/0xbe0
[ 2037.762285][   T10]      __do_softirq+0x1b5/0x7f6
[ 2037.762285][   T10] 
[ 2037.764010][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2037.764010][   T10]      netdev_get_by_index+0x5e/0x80
[ 2037.764010][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2037.764010][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2037.764010][   T10]      ip6_route_add+0x1c/0x140
[ 2037.764010][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2037.764010][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2037.764010][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2037.764010][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2037.764010][   T10]      netlink_rcv_skb+0x130/0x360
[ 2037.764010][   T10]      netlink_unicast+0x449/0x710
[ 2037.764010][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2037.764010][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2037.764010][   T10]      ___sys_sendmsg+0xee/0x170
[ 2037.764010][   T10]      __sys_sendmsg+0xcd/0x170
[ 2037.764010][   T10]      do_syscall_64+0xc6/0x1e0
[ 2037.764010][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2037.764010][   T10] 
[ 2037.766053][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2037.766053][   T10]      netdev_get_by_index+0x5e/0x80
[ 2037.766053][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2037.766053][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2037.766053][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2037.766053][   T10]      ipv6_add_addr+0x411/0x2000
[ 2037.766053][   T10]      inet6_addr_add+0x30e/0xa40
[ 2037.766053][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2037.766053][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2037.766053][   T10]      netlink_rcv_skb+0x130/0x360
[ 2037.766053][   T10]      netlink_unicast+0x449/0x710
[ 2037.766053][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2037.766053][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2037.766053][   T10]      ___sys_sendmsg+0xee/0x170
[ 2037.766053][   T10]      __sys_sendmsg+0xcd/0x170
[ 2037.766053][   T10]      do_syscall_64+0xc6/0x1e0
[ 2037.766053][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2037.766053][   T10] 
[ 2037.768083][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2037.768083][   T10]      netdev_get_by_index+0x5e/0x80
[ 2037.768083][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2037.768083][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2037.768083][   T10]      ip6_route_add+0x1c/0x140
[ 2037.768083][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2037.768083][   T10]      addrconf_add_dev+0xe2/0x170
[ 2037.768083][   T10]      inet6_addr_add+0x12f/0xa40
[ 2037.768083][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2037.768083][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2037.768083][   T10]      netlink_rcv_skb+0x130/0x360
[ 2037.768083][   T10]      netlink_unicast+0x449/0x710
[ 2037.768083][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2037.768083][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2037.768083][   T10]      ___sys_sendmsg+0xee/0x170
[ 2037.768083][   T10]      __sys_sendmsg+0xcd/0x170
[ 2037.768083][   T10]      do_syscall_64+0xc6/0x1e0
[ 2037.768083][   T10] 
[ 2037.770081][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2037.770081][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2037.770081][   T10]      ipv6_find_idev+0x102/0x170
[ 2037.770081][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2037.770081][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2037.770081][   T10]      netlink_rcv_skb+0x130/0x360
[ 2037.770081][   T10]      netlink_unicast+0x449/0x710
[ 2037.770081][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2037.770081][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2037.770081][   T10]      ___sys_sendmsg+0xee/0x170
[ 2037.770081][   T10]      __sys_sendmsg+0xcd/0x170
[ 2037.770081][   T10]      do_syscall_64+0xc6/0x1e0
[ 2037.770081][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2037.770081][   T10] 
[ 2037.771650][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2037.771650][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2037.771650][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2037.771650][   T10]      ipv6_find_idev+0x102/0x170
[ 2037.771650][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2037.771650][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2037.771650][   T10]      netlink_rcv_skb+0x130/0x360
[ 2037.771650][   T10]      netlink_unicast+0x449/0x710
[ 2037.771650][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2037.771650][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2037.771650][   T10]      ___sys_sendmsg+0xee/0x170
[ 2037.771650][   T10]      __sys_sendmsg+0xcd/0x170
[ 2037.771650][   T10]      do_syscall_64+0xc6/0x1e0
[ 2037.771650][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2037.771650][   T10] 
[ 2037.773402][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2037.773657][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2037.773657][   T10]      dst_init+0x84/0x4a0
[ 2037.773657][   T10]      dst_alloc+0x97/0x150
[ 2037.773657][   T10]      ip6_dst_alloc+0x23/0x90
[ 2037.773657][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2037.773657][   T10]      ip6_pol_route+0x56f/0x840
[ 2037.773657][   T10]      fib6_rule_lookup+0x456/0x630
[ 2037.773657][   T10]      ip6_route_input+0x59c/0xa50
[ 2037.773657][   T10]      ipv6_rcv+0x397/0x810
[ 2037.773657][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2037.773657][   T10]      process_backlog+0x101/0x620
[ 2037.773657][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2037.773657][   T10]      net_rx_action+0x495/0xbe0
[ 2037.773657][   T10]      __do_softirq+0x1b5/0x7f6
[ 2037.773657][   T10] 
[ 2037.775326][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2037.775326][   T10]      netdev_get_by_index+0x5e/0x80
[ 2037.775326][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2037.775326][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2037.775326][   T10]      ip6_route_add+0x1c/0x140
[ 2037.775326][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2037.775326][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2037.775326][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2037.775326][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2037.775326][   T10]      netlink_rcv_skb+0x130/0x360
[ 2037.775326][   T10]      netlink_unicast+0x449/0x710
[ 2037.775326][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2037.775326][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2037.775326][   T10]      ___sys_sendmsg+0xee/0x170
[ 2037.775326][   T10]      __sys_sendmsg+0xcd/0x170
[ 2037.775326][   T10]      do_syscall_64+0xc6/0x1e0
[ 2037.775326][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2037.775326][   T10] 
[ 2037.777358][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2037.777358][   T10]      netdev_get_by_index+0x5e/0x80
[ 2037.777358][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2037.777358][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2037.777358][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2037.777358][   T10]      ipv6_add_addr+0x411/0x2000
[ 2037.777358][   T10]      inet6_addr_add+0x30e/0xa40
[ 2037.777358][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2037.777358][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2037.777358][   T10]      netlink_rcv_skb+0x130/0x360
[ 2037.777358][   T10]      netlink_unicast+0x449/0x710
[ 2037.777358][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2037.777358][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2037.777358][   T10]      ___sys_sendmsg+0xee/0x170
[ 2037.777358][   T10]      __sys_sendmsg+0xcd/0x170
[ 2037.777358][   T10]      do_syscall_64+0xc6/0x1e0
[ 2037.777358][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2037.777358][   T10] 
[ 2037.779391][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2037.779391][   T10]      netdev_get_by_index+0x5e/0x80
[ 2037.779391][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2037.779391][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2037.779391][   T10]      ip6_route_add+0x1c/0x140
[ 2037.779391][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2037.779391][   T10]      addrconf_add_dev+0xe2/0x170
[ 2037.779391][   T10]      inet6_addr_add+0x12f/0xa40
[ 2037.779391][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2037.779391][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2037.779391][   T10]      netlink_rcv_skb+0x130/0x360
[ 2037.779391][   T10]      netlink_unicast+0x449/0x710
[ 2037.779391][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2037.779391][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2037.779391][   T10]      ___sys_sendmsg+0xee/0x170
[ 2037.779391][   T10]      __sys_sendmsg+0xcd/0x170
[ 2037.779391][   T10]      do_syscall_64+0xc6/0x1e0
[ 2037.779391][   T10] 
[ 2037.781396][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2037.781396][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2037.781396][   T10]      ipv6_find_idev+0x102/0x170
[ 2037.781396][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2037.781396][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2037.781396][   T10]      netlink_rcv_skb+0x130/0x360
[ 2037.781396][   T10]      netlink_unicast+0x449/0x710
[ 2037.781396][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2037.781396][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2037.781396][   T10]      ___sys_sendmsg+0xee/0x170
[ 2037.781396][   T10]      __sys_sendmsg+0xcd/0x170
[ 2037.781396][   T10]      do_syscall_64+0xc6/0x1e0
[ 2037.781396][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2037.781396][   T10] 
[ 2037.782974][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2037.782974][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2037.782974][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2037.782974][   T10]      ipv6_find_idev+0x102/0x170
[ 2037.782974][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2037.782974][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2037.782974][   T10]      netlink_rcv_skb+0x130/0x360
[ 2037.782974][   T10]      netlink_unicast+0x449/0x710
[ 2037.782974][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2037.782974][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2037.782974][   T10]      ___sys_sendmsg+0xee/0x170
[ 2037.782974][   T10]      __sys_sendmsg+0xcd/0x170
[ 2037.782974][   T10]      do_syscall_64+0xc6/0x1e0
[ 2037.782974][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2037.782974][   T10] 
[ 2048.025783][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2048.026272][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2048.026272][   T10]      dst_init+0x84/0x4a0
[ 2048.026272][   T10]      dst_alloc+0x97/0x150
[ 2048.026272][   T10]      ip6_dst_alloc+0x23/0x90
[ 2048.026272][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2048.026272][   T10]      ip6_pol_route+0x56f/0x840
[ 2048.026272][   T10]      fib6_rule_lookup+0x456/0x630
[ 2048.026272][   T10]      ip6_route_input+0x59c/0xa50
[ 2048.026272][   T10]      ipv6_rcv+0x397/0x810
[ 2048.026272][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2048.026272][   T10]      process_backlog+0x101/0x620
[ 2048.026272][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2048.026272][   T10]      net_rx_action+0x495/0xbe0
[ 2048.026272][   T10]      __do_softirq+0x1b5/0x7f6
[ 2048.026272][   T10] 
[ 2048.027985][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2048.027985][   T10]      netdev_get_by_index+0x5e/0x80
[ 2048.027985][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2048.027985][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2048.027985][   T10]      ip6_route_add+0x1c/0x140
[ 2048.027985][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2048.027985][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2048.027985][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2048.027985][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2048.027985][   T10]      netlink_rcv_skb+0x130/0x360
[ 2048.027985][   T10]      netlink_unicast+0x449/0x710
[ 2048.027985][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2048.027985][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2048.027985][   T10]      ___sys_sendmsg+0xee/0x170
[ 2048.027985][   T10]      __sys_sendmsg+0xcd/0x170
[ 2048.027985][   T10]      do_syscall_64+0xc6/0x1e0
[ 2048.027985][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2048.027985][   T10] 
[ 2048.030021][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2048.030021][   T10]      netdev_get_by_index+0x5e/0x80
[ 2048.030021][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2048.030021][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2048.030021][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2048.030021][   T10]      ipv6_add_addr+0x411/0x2000
[ 2048.030021][   T10]      inet6_addr_add+0x30e/0xa40
[ 2048.030021][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2048.030021][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2048.030021][   T10]      netlink_rcv_skb+0x130/0x360
[ 2048.030021][   T10]      netlink_unicast+0x449/0x710
[ 2048.030021][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2048.030021][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2048.030021][   T10]      ___sys_sendmsg+0xee/0x170
[ 2048.030021][   T10]      __sys_sendmsg+0xcd/0x170
[ 2048.030021][   T10]      do_syscall_64+0xc6/0x1e0
[ 2048.030021][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2048.030021][   T10] 
[ 2048.032054][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2048.032054][   T10]      netdev_get_by_index+0x5e/0x80
[ 2048.032054][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2048.032054][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2048.032054][   T10]      ip6_route_add+0x1c/0x140
[ 2048.032054][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2048.032054][   T10]      addrconf_add_dev+0xe2/0x170
[ 2048.032054][   T10]      inet6_addr_add+0x12f/0xa40
[ 2048.032054][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2048.032054][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2048.032054][   T10]      netlink_rcv_skb+0x130/0x360
[ 2048.032054][   T10]      netlink_unicast+0x449/0x710
[ 2048.032054][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2048.032054][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2048.032054][   T10]      ___sys_sendmsg+0xee/0x170
[ 2048.032054][   T10]      __sys_sendmsg+0xcd/0x170
[ 2048.032054][   T10]      do_syscall_64+0xc6/0x1e0
[ 2048.032054][   T10] 
[ 2048.034059][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2048.034059][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2048.034059][   T10]      ipv6_find_idev+0x102/0x170
[ 2048.034059][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2048.034059][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2048.034059][   T10]      netlink_rcv_skb+0x130/0x360
[ 2048.034059][   T10]      netlink_unicast+0x449/0x710
[ 2048.034059][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2048.034059][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2048.034059][   T10]      ___sys_sendmsg+0xee/0x170
[ 2048.034059][   T10]      __sys_sendmsg+0xcd/0x170
[ 2048.034059][   T10]      do_syscall_64+0xc6/0x1e0
[ 2048.034059][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2048.034059][   T10] 
[ 2048.035627][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2048.035627][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2048.035627][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2048.035627][   T10]      ipv6_find_idev+0x102/0x170
[ 2048.035627][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2048.035627][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2048.035627][   T10]      netlink_rcv_skb+0x130/0x360
[ 2048.035627][   T10]      netlink_unicast+0x449/0x710
[ 2048.035627][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2048.035627][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2048.035627][   T10]      ___sys_sendmsg+0xee/0x170
[ 2048.035627][   T10]      __sys_sendmsg+0xcd/0x170
[ 2048.035627][   T10]      do_syscall_64+0xc6/0x1e0
[ 2048.035627][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2048.035627][   T10] 
[ 2048.037355][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2048.037615][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2048.037615][   T10]      dst_init+0x84/0x4a0
[ 2048.037615][   T10]      dst_alloc+0x97/0x150
[ 2048.037615][   T10]      ip6_dst_alloc+0x23/0x90
[ 2048.037615][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2048.037615][   T10]      ip6_pol_route+0x56f/0x840
[ 2048.037615][   T10]      fib6_rule_lookup+0x456/0x630
[ 2048.037615][   T10]      ip6_route_input+0x59c/0xa50
[ 2048.037615][   T10]      ipv6_rcv+0x397/0x810
[ 2048.037615][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2048.037615][   T10]      process_backlog+0x101/0x620
[ 2048.037615][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2048.037615][   T10]      net_rx_action+0x495/0xbe0
[ 2048.037615][   T10]      __do_softirq+0x1b5/0x7f6
[ 2048.037615][   T10] 
[ 2048.039294][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2048.039294][   T10]      netdev_get_by_index+0x5e/0x80
[ 2048.039294][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2048.039294][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2048.039294][   T10]      ip6_route_add+0x1c/0x140
[ 2048.039294][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2048.039294][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2048.039294][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2048.039294][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2048.039294][   T10]      netlink_rcv_skb+0x130/0x360
[ 2048.039294][   T10]      netlink_unicast+0x449/0x710
[ 2048.039294][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2048.039294][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2048.039294][   T10]      ___sys_sendmsg+0xee/0x170
[ 2048.039294][   T10]      __sys_sendmsg+0xcd/0x170
[ 2048.039294][   T10]      do_syscall_64+0xc6/0x1e0
[ 2048.039294][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2048.039294][   T10] 
[ 2048.041328][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2048.041328][   T10]      netdev_get_by_index+0x5e/0x80
[ 2048.041328][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2048.041328][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2048.041328][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2048.041328][   T10]      ipv6_add_addr+0x411/0x2000
[ 2048.041328][   T10]      inet6_addr_add+0x30e/0xa40
[ 2048.041328][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2048.041328][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2048.041328][   T10]      netlink_rcv_skb+0x130/0x360
[ 2048.041328][   T10]      netlink_unicast+0x449/0x710
[ 2048.041328][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2048.041328][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2048.041328][   T10]      ___sys_sendmsg+0xee/0x170
[ 2048.041328][   T10]      __sys_sendmsg+0xcd/0x170
[ 2048.041328][   T10]      do_syscall_64+0xc6/0x1e0
[ 2048.041328][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2048.041328][   T10] 
[ 2048.043360][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2048.043360][   T10]      netdev_get_by_index+0x5e/0x80
[ 2048.043360][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2048.043360][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2048.043360][   T10]      ip6_route_add+0x1c/0x140
[ 2048.043360][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2048.043360][   T10]      addrconf_add_dev+0xe2/0x170
[ 2048.043360][   T10]      inet6_addr_add+0x12f/0xa40
[ 2048.043360][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2048.043360][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2048.043360][   T10]      netlink_rcv_skb+0x130/0x360
[ 2048.043360][   T10]      netlink_unicast+0x449/0x710
[ 2048.043360][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2048.043360][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2048.043360][   T10]      ___sys_sendmsg+0xee/0x170
[ 2048.043360][   T10]      __sys_sendmsg+0xcd/0x170
[ 2048.043360][   T10]      do_syscall_64+0xc6/0x1e0
[ 2048.043360][   T10] 
[ 2048.045350][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2048.045350][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2048.045350][   T10]      ipv6_find_idev+0x102/0x170
[ 2048.045350][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2048.045350][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2048.045350][   T10]      netlink_rcv_skb+0x130/0x360
[ 2048.045350][   T10]      netlink_unicast+0x449/0x710
[ 2048.045350][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2048.045350][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2048.045350][   T10]      ___sys_sendmsg+0xee/0x170
[ 2048.045350][   T10]      __sys_sendmsg+0xcd/0x170
[ 2048.045350][   T10]      do_syscall_64+0xc6/0x1e0
[ 2048.045350][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2048.045350][   T10] 
[ 2048.046915][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2048.046915][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2048.046915][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2048.046915][   T10]      ipv6_find_idev+0x102/0x170
[ 2048.046915][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2048.046915][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2048.046915][   T10]      netlink_rcv_skb+0x130/0x360
[ 2048.046915][   T10]      netlink_unicast+0x449/0x710
[ 2048.046915][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2048.046915][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2048.046915][   T10]      ___sys_sendmsg+0xee/0x170
[ 2048.046915][   T10]      __sys_sendmsg+0xcd/0x170
[ 2048.046915][   T10]      do_syscall_64+0xc6/0x1e0
[ 2048.046915][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2048.046915][   T10] 
[ 2058.289811][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2058.290287][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2058.290287][   T10]      dst_init+0x84/0x4a0
[ 2058.290287][   T10]      dst_alloc+0x97/0x150
[ 2058.290287][   T10]      ip6_dst_alloc+0x23/0x90
[ 2058.290287][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2058.290287][   T10]      ip6_pol_route+0x56f/0x840
[ 2058.290287][   T10]      fib6_rule_lookup+0x456/0x630
[ 2058.290287][   T10]      ip6_route_input+0x59c/0xa50
[ 2058.290287][   T10]      ipv6_rcv+0x397/0x810
[ 2058.290287][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2058.290287][   T10]      process_backlog+0x101/0x620
[ 2058.290287][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2058.290287][   T10]      net_rx_action+0x495/0xbe0
[ 2058.290287][   T10]      __do_softirq+0x1b5/0x7f6
[ 2058.290287][   T10] 
[ 2058.292004][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2058.292004][   T10]      netdev_get_by_index+0x5e/0x80
[ 2058.292004][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2058.292004][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2058.292004][   T10]      ip6_route_add+0x1c/0x140
[ 2058.292004][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2058.292004][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2058.292004][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2058.292004][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2058.292004][   T10]      netlink_rcv_skb+0x130/0x360
[ 2058.292004][   T10]      netlink_unicast+0x449/0x710
[ 2058.292004][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2058.292004][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2058.292004][   T10]      ___sys_sendmsg+0xee/0x170
[ 2058.292004][   T10]      __sys_sendmsg+0xcd/0x170
[ 2058.292004][   T10]      do_syscall_64+0xc6/0x1e0
[ 2058.292004][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2058.292004][   T10] 
[ 2058.294061][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2058.294061][   T10]      netdev_get_by_index+0x5e/0x80
[ 2058.294061][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2058.294061][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2058.294061][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2058.294061][   T10]      ipv6_add_addr+0x411/0x2000
[ 2058.294061][   T10]      inet6_addr_add+0x30e/0xa40
[ 2058.294061][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2058.294061][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2058.294061][   T10]      netlink_rcv_skb+0x130/0x360
[ 2058.294061][   T10]      netlink_unicast+0x449/0x710
[ 2058.294061][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2058.294061][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2058.294061][   T10]      ___sys_sendmsg+0xee/0x170
[ 2058.294061][   T10]      __sys_sendmsg+0xcd/0x170
[ 2058.294061][   T10]      do_syscall_64+0xc6/0x1e0
[ 2058.294061][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2058.294061][   T10] 
[ 2058.296092][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2058.296092][   T10]      netdev_get_by_index+0x5e/0x80
[ 2058.296092][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2058.296092][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2058.296092][   T10]      ip6_route_add+0x1c/0x140
[ 2058.296092][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2058.296092][   T10]      addrconf_add_dev+0xe2/0x170
[ 2058.296092][   T10]      inet6_addr_add+0x12f/0xa40
[ 2058.296092][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2058.296092][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2058.296092][   T10]      netlink_rcv_skb+0x130/0x360
[ 2058.296092][   T10]      netlink_unicast+0x449/0x710
[ 2058.296092][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2058.296092][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2058.296092][   T10]      ___sys_sendmsg+0xee/0x170
[ 2058.296092][   T10]      __sys_sendmsg+0xcd/0x170
[ 2058.296092][   T10]      do_syscall_64+0xc6/0x1e0
[ 2058.296092][   T10] 
[ 2058.298092][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2058.298092][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2058.298092][   T10]      ipv6_find_idev+0x102/0x170
[ 2058.298092][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2058.298092][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2058.298092][   T10]      netlink_rcv_skb+0x130/0x360
[ 2058.298092][   T10]      netlink_unicast+0x449/0x710
[ 2058.298092][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2058.298092][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2058.298092][   T10]      ___sys_sendmsg+0xee/0x170
[ 2058.298092][   T10]      __sys_sendmsg+0xcd/0x170
[ 2058.298092][   T10]      do_syscall_64+0xc6/0x1e0
[ 2058.298092][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2058.298092][   T10] 
[ 2058.299657][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2058.299657][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2058.299657][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2058.299657][   T10]      ipv6_find_idev+0x102/0x170
[ 2058.299657][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2058.299657][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2058.299657][   T10]      netlink_rcv_skb+0x130/0x360
[ 2058.299657][   T10]      netlink_unicast+0x449/0x710
[ 2058.299657][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2058.299657][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2058.299657][   T10]      ___sys_sendmsg+0xee/0x170
[ 2058.299657][   T10]      __sys_sendmsg+0xcd/0x170
[ 2058.299657][   T10]      do_syscall_64+0xc6/0x1e0
[ 2058.299657][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2058.299657][   T10] 
[ 2058.301392][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2058.301647][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2058.301647][   T10]      dst_init+0x84/0x4a0
[ 2058.301647][   T10]      dst_alloc+0x97/0x150
[ 2058.301647][   T10]      ip6_dst_alloc+0x23/0x90
[ 2058.301647][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2058.301647][   T10]      ip6_pol_route+0x56f/0x840
[ 2058.301647][   T10]      fib6_rule_lookup+0x456/0x630
[ 2058.301647][   T10]      ip6_route_input+0x59c/0xa50
[ 2058.301647][   T10]      ipv6_rcv+0x397/0x810
[ 2058.301647][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2058.301647][   T10]      process_backlog+0x101/0x620
[ 2058.301647][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2058.301647][   T10]      net_rx_action+0x495/0xbe0
[ 2058.301647][   T10]      __do_softirq+0x1b5/0x7f6
[ 2058.301647][   T10] 
[ 2058.303319][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2058.303319][   T10]      netdev_get_by_index+0x5e/0x80
[ 2058.303319][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2058.303319][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2058.303319][   T10]      ip6_route_add+0x1c/0x140
[ 2058.303319][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2058.303319][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2058.303319][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2058.303319][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2058.303319][   T10]      netlink_rcv_skb+0x130/0x360
[ 2058.303319][   T10]      netlink_unicast+0x449/0x710
[ 2058.303319][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2058.303319][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2058.303319][   T10]      ___sys_sendmsg+0xee/0x170
[ 2058.303319][   T10]      __sys_sendmsg+0xcd/0x170
[ 2058.303319][   T10]      do_syscall_64+0xc6/0x1e0
[ 2058.303319][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2058.303319][   T10] 
[ 2058.305362][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2058.305362][   T10]      netdev_get_by_index+0x5e/0x80
[ 2058.305362][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2058.305362][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2058.305362][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2058.305362][   T10]      ipv6_add_addr+0x411/0x2000
[ 2058.305362][   T10]      inet6_addr_add+0x30e/0xa40
[ 2058.305362][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2058.305362][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2058.305362][   T10]      netlink_rcv_skb+0x130/0x360
[ 2058.305362][   T10]      netlink_unicast+0x449/0x710
[ 2058.305362][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2058.305362][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2058.305362][   T10]      ___sys_sendmsg+0xee/0x170
[ 2058.305362][   T10]      __sys_sendmsg+0xcd/0x170
[ 2058.305362][   T10]      do_syscall_64+0xc6/0x1e0
[ 2058.305362][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2058.305362][   T10] 
[ 2058.307390][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2058.307390][   T10]      netdev_get_by_index+0x5e/0x80
[ 2058.307390][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2058.307390][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2058.307390][   T10]      ip6_route_add+0x1c/0x140
[ 2058.307390][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2058.307390][   T10]      addrconf_add_dev+0xe2/0x170
[ 2058.307390][   T10]      inet6_addr_add+0x12f/0xa40
[ 2058.307390][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2058.307390][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2058.307390][   T10]      netlink_rcv_skb+0x130/0x360
[ 2058.307390][   T10]      netlink_unicast+0x449/0x710
[ 2058.307390][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2058.307390][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2058.307390][   T10]      ___sys_sendmsg+0xee/0x170
[ 2058.307390][   T10]      __sys_sendmsg+0xcd/0x170
[ 2058.307390][   T10]      do_syscall_64+0xc6/0x1e0
[ 2058.307390][   T10] 
[ 2058.309378][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2058.309378][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2058.309378][   T10]      ipv6_find_idev+0x102/0x170
[ 2058.309378][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2058.309378][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2058.309378][   T10]      netlink_rcv_skb+0x130/0x360
[ 2058.309378][   T10]      netlink_unicast+0x449/0x710
[ 2058.309378][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2058.309378][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2058.309378][   T10]      ___sys_sendmsg+0xee/0x170
[ 2058.309378][   T10]      __sys_sendmsg+0xcd/0x170
[ 2058.309378][   T10]      do_syscall_64+0xc6/0x1e0
[ 2058.309378][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2058.309378][   T10] 
[ 2058.310941][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2058.310941][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2058.310941][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2058.310941][   T10]      ipv6_find_idev+0x102/0x170
[ 2058.310941][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2058.310941][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2058.310941][   T10]      netlink_rcv_skb+0x130/0x360
[ 2058.310941][   T10]      netlink_unicast+0x449/0x710
[ 2058.310941][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2058.310941][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2058.310941][   T10]      ___sys_sendmsg+0xee/0x170
[ 2058.310941][   T10]      __sys_sendmsg+0xcd/0x170
[ 2058.310941][   T10]      do_syscall_64+0xc6/0x1e0
[ 2058.310941][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2058.310941][   T10] 
[ 2068.553796][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2068.554271][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2068.554271][   T10]      dst_init+0x84/0x4a0
[ 2068.554271][   T10]      dst_alloc+0x97/0x150
[ 2068.554271][   T10]      ip6_dst_alloc+0x23/0x90
[ 2068.554271][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2068.554271][   T10]      ip6_pol_route+0x56f/0x840
[ 2068.554271][   T10]      fib6_rule_lookup+0x456/0x630
[ 2068.554271][   T10]      ip6_route_input+0x59c/0xa50
[ 2068.554271][   T10]      ipv6_rcv+0x397/0x810
[ 2068.554271][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2068.554271][   T10]      process_backlog+0x101/0x620
[ 2068.554271][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2068.554271][   T10]      net_rx_action+0x495/0xbe0
[ 2068.554271][   T10]      __do_softirq+0x1b5/0x7f6
[ 2068.554271][   T10] 
[ 2068.555990][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2068.555990][   T10]      netdev_get_by_index+0x5e/0x80
[ 2068.555990][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2068.555990][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2068.555990][   T10]      ip6_route_add+0x1c/0x140
[ 2068.555990][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2068.555990][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2068.555990][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2068.555990][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2068.555990][   T10]      netlink_rcv_skb+0x130/0x360
[ 2068.555990][   T10]      netlink_unicast+0x449/0x710
[ 2068.555990][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2068.555990][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2068.555990][   T10]      ___sys_sendmsg+0xee/0x170
[ 2068.555990][   T10]      __sys_sendmsg+0xcd/0x170
[ 2068.555990][   T10]      do_syscall_64+0xc6/0x1e0
[ 2068.555990][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2068.555990][   T10] 
[ 2068.558030][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2068.558030][   T10]      netdev_get_by_index+0x5e/0x80
[ 2068.558030][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2068.558030][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2068.558030][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2068.558030][   T10]      ipv6_add_addr+0x411/0x2000
[ 2068.558030][   T10]      inet6_addr_add+0x30e/0xa40
[ 2068.558030][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2068.558030][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2068.558030][   T10]      netlink_rcv_skb+0x130/0x360
[ 2068.558030][   T10]      netlink_unicast+0x449/0x710
[ 2068.558030][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2068.558030][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2068.558030][   T10]      ___sys_sendmsg+0xee/0x170
[ 2068.558030][   T10]      __sys_sendmsg+0xcd/0x170
[ 2068.558030][   T10]      do_syscall_64+0xc6/0x1e0
[ 2068.558030][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2068.558030][   T10] 
[ 2068.560072][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2068.560072][   T10]      netdev_get_by_index+0x5e/0x80
[ 2068.560072][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2068.560072][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2068.560072][   T10]      ip6_route_add+0x1c/0x140
[ 2068.560072][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2068.560072][   T10]      addrconf_add_dev+0xe2/0x170
[ 2068.560072][   T10]      inet6_addr_add+0x12f/0xa40
[ 2068.560072][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2068.560072][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2068.560072][   T10]      netlink_rcv_skb+0x130/0x360
[ 2068.560072][   T10]      netlink_unicast+0x449/0x710
[ 2068.560072][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2068.560072][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2068.560072][   T10]      ___sys_sendmsg+0xee/0x170
[ 2068.560072][   T10]      __sys_sendmsg+0xcd/0x170
[ 2068.560072][   T10]      do_syscall_64+0xc6/0x1e0
[ 2068.560072][   T10] 
[ 2068.562077][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2068.562077][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2068.562077][   T10]      ipv6_find_idev+0x102/0x170
[ 2068.562077][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2068.562077][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2068.562077][   T10]      netlink_rcv_skb+0x130/0x360
[ 2068.562077][   T10]      netlink_unicast+0x449/0x710
[ 2068.562077][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2068.562077][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2068.562077][   T10]      ___sys_sendmsg+0xee/0x170
[ 2068.562077][   T10]      __sys_sendmsg+0xcd/0x170
[ 2068.562077][   T10]      do_syscall_64+0xc6/0x1e0
[ 2068.562077][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2068.562077][   T10] 
[ 2068.563657][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2068.563657][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2068.563657][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2068.563657][   T10]      ipv6_find_idev+0x102/0x170
[ 2068.563657][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2068.563657][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2068.563657][   T10]      netlink_rcv_skb+0x130/0x360
[ 2068.563657][   T10]      netlink_unicast+0x449/0x710
[ 2068.563657][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2068.563657][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2068.563657][   T10]      ___sys_sendmsg+0xee/0x170
[ 2068.563657][   T10]      __sys_sendmsg+0xcd/0x170
[ 2068.563657][   T10]      do_syscall_64+0xc6/0x1e0
[ 2068.563657][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2068.563657][   T10] 
[ 2068.565394][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2068.565651][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2068.565651][   T10]      dst_init+0x84/0x4a0
[ 2068.565651][   T10]      dst_alloc+0x97/0x150
[ 2068.565651][   T10]      ip6_dst_alloc+0x23/0x90
[ 2068.565651][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2068.565651][   T10]      ip6_pol_route+0x56f/0x840
[ 2068.565651][   T10]      fib6_rule_lookup+0x456/0x630
[ 2068.565651][   T10]      ip6_route_input+0x59c/0xa50
[ 2068.565651][   T10]      ipv6_rcv+0x397/0x810
[ 2068.565651][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2068.565651][   T10]      process_backlog+0x101/0x620
[ 2068.565651][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2068.565651][   T10]      net_rx_action+0x495/0xbe0
[ 2068.565651][   T10]      __do_softirq+0x1b5/0x7f6
[ 2068.565651][   T10] 
[ 2068.567323][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2068.567323][   T10]      netdev_get_by_index+0x5e/0x80
[ 2068.567323][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2068.567323][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2068.567323][   T10]      ip6_route_add+0x1c/0x140
[ 2068.567323][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2068.567323][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2068.567323][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2068.567323][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2068.567323][   T10]      netlink_rcv_skb+0x130/0x360
[ 2068.567323][   T10]      netlink_unicast+0x449/0x710
[ 2068.567323][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2068.567323][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2068.567323][   T10]      ___sys_sendmsg+0xee/0x170
[ 2068.567323][   T10]      __sys_sendmsg+0xcd/0x170
[ 2068.567323][   T10]      do_syscall_64+0xc6/0x1e0
[ 2068.567323][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2068.567323][   T10] 
[ 2068.569371][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2068.569371][   T10]      netdev_get_by_index+0x5e/0x80
[ 2068.569371][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2068.569371][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2068.569371][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2068.569371][   T10]      ipv6_add_addr+0x411/0x2000
[ 2068.569371][   T10]      inet6_addr_add+0x30e/0xa40
[ 2068.569371][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2068.569371][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2068.569371][   T10]      netlink_rcv_skb+0x130/0x360
[ 2068.569371][   T10]      netlink_unicast+0x449/0x710
[ 2068.569371][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2068.569371][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2068.569371][   T10]      ___sys_sendmsg+0xee/0x170
[ 2068.569371][   T10]      __sys_sendmsg+0xcd/0x170
[ 2068.569371][   T10]      do_syscall_64+0xc6/0x1e0
[ 2068.569371][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2068.569371][   T10] 
[ 2068.571421][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2068.571421][   T10]      netdev_get_by_index+0x5e/0x80
[ 2068.571421][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2068.571421][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2068.571421][   T10]      ip6_route_add+0x1c/0x140
[ 2068.571421][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2068.571421][   T10]      addrconf_add_dev+0xe2/0x170
[ 2068.571421][   T10]      inet6_addr_add+0x12f/0xa40
[ 2068.571421][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2068.571421][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2068.571421][   T10]      netlink_rcv_skb+0x130/0x360
[ 2068.571421][   T10]      netlink_unicast+0x449/0x710
[ 2068.571421][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2068.571421][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2068.571421][   T10]      ___sys_sendmsg+0xee/0x170
[ 2068.571421][   T10]      __sys_sendmsg+0xcd/0x170
[ 2068.571421][   T10]      do_syscall_64+0xc6/0x1e0
[ 2068.571421][   T10] 
[ 2068.573424][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2068.573424][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2068.573424][   T10]      ipv6_find_idev+0x102/0x170
[ 2068.573424][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2068.573424][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2068.573424][   T10]      netlink_rcv_skb+0x130/0x360
[ 2068.573424][   T10]      netlink_unicast+0x449/0x710
[ 2068.573424][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2068.573424][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2068.573424][   T10]      ___sys_sendmsg+0xee/0x170
[ 2068.573424][   T10]      __sys_sendmsg+0xcd/0x170
[ 2068.573424][   T10]      do_syscall_64+0xc6/0x1e0
[ 2068.573424][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2068.573424][   T10] 
[ 2068.574987][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2068.574987][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2068.574987][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2068.574987][   T10]      ipv6_find_idev+0x102/0x170
[ 2068.574987][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2068.574987][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2068.574987][   T10]      netlink_rcv_skb+0x130/0x360
[ 2068.574987][   T10]      netlink_unicast+0x449/0x710
[ 2068.574987][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2068.574987][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2068.574987][   T10]      ___sys_sendmsg+0xee/0x170
[ 2068.574987][   T10]      __sys_sendmsg+0xcd/0x170
[ 2068.574987][   T10]      do_syscall_64+0xc6/0x1e0
[ 2068.574987][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2068.574987][   T10] 
[ 2078.817791][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2078.818288][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2078.818288][   T10]      dst_init+0x84/0x4a0
[ 2078.818288][   T10]      dst_alloc+0x97/0x150
[ 2078.818288][   T10]      ip6_dst_alloc+0x23/0x90
[ 2078.818288][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2078.818288][   T10]      ip6_pol_route+0x56f/0x840
[ 2078.818288][   T10]      fib6_rule_lookup+0x456/0x630
[ 2078.818288][   T10]      ip6_route_input+0x59c/0xa50
[ 2078.818288][   T10]      ipv6_rcv+0x397/0x810
[ 2078.818288][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2078.818288][   T10]      process_backlog+0x101/0x620
[ 2078.818288][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2078.818288][   T10]      net_rx_action+0x495/0xbe0
[ 2078.818288][   T10]      __do_softirq+0x1b5/0x7f6
[ 2078.818288][   T10] 
[ 2078.820015][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2078.820015][   T10]      netdev_get_by_index+0x5e/0x80
[ 2078.820015][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2078.820015][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2078.820015][   T10]      ip6_route_add+0x1c/0x140
[ 2078.820015][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2078.820015][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2078.820015][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2078.820015][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2078.820015][   T10]      netlink_rcv_skb+0x130/0x360
[ 2078.820015][   T10]      netlink_unicast+0x449/0x710
[ 2078.820015][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2078.820015][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2078.820015][   T10]      ___sys_sendmsg+0xee/0x170
[ 2078.820015][   T10]      __sys_sendmsg+0xcd/0x170
[ 2078.820015][   T10]      do_syscall_64+0xc6/0x1e0
[ 2078.820015][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2078.820015][   T10] 
[ 2078.822075][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2078.822075][   T10]      netdev_get_by_index+0x5e/0x80
[ 2078.822075][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2078.822075][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2078.822075][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2078.822075][   T10]      ipv6_add_addr+0x411/0x2000
[ 2078.822075][   T10]      inet6_addr_add+0x30e/0xa40
[ 2078.822075][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2078.822075][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2078.822075][   T10]      netlink_rcv_skb+0x130/0x360
[ 2078.822075][   T10]      netlink_unicast+0x449/0x710
[ 2078.822075][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2078.822075][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2078.822075][   T10]      ___sys_sendmsg+0xee/0x170
[ 2078.822075][   T10]      __sys_sendmsg+0xcd/0x170
[ 2078.822075][   T10]      do_syscall_64+0xc6/0x1e0
[ 2078.822075][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2078.822075][   T10] 
[ 2078.824151][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2078.824151][   T10]      netdev_get_by_index+0x5e/0x80
[ 2078.824151][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2078.824151][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2078.824151][   T10]      ip6_route_add+0x1c/0x140
[ 2078.824151][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2078.824151][   T10]      addrconf_add_dev+0xe2/0x170
[ 2078.824151][   T10]      inet6_addr_add+0x12f/0xa40
[ 2078.824151][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2078.824151][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2078.824151][   T10]      netlink_rcv_skb+0x130/0x360
[ 2078.824151][   T10]      netlink_unicast+0x449/0x710
[ 2078.824151][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2078.824151][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2078.824151][   T10]      ___sys_sendmsg+0xee/0x170
[ 2078.824151][   T10]      __sys_sendmsg+0xcd/0x170
[ 2078.824151][   T10]      do_syscall_64+0xc6/0x1e0
[ 2078.824151][   T10] 
[ 2078.826169][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2078.826169][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2078.826169][   T10]      ipv6_find_idev+0x102/0x170
[ 2078.826169][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2078.826169][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2078.826169][   T10]      netlink_rcv_skb+0x130/0x360
[ 2078.826169][   T10]      netlink_unicast+0x449/0x710
[ 2078.826169][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2078.826169][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2078.826169][   T10]      ___sys_sendmsg+0xee/0x170
[ 2078.826169][   T10]      __sys_sendmsg+0xcd/0x170
[ 2078.826169][   T10]      do_syscall_64+0xc6/0x1e0
[ 2078.826169][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2078.826169][   T10] 
[ 2078.827752][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2078.827752][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2078.827752][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2078.827752][   T10]      ipv6_find_idev+0x102/0x170
[ 2078.827752][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2078.827752][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2078.827752][   T10]      netlink_rcv_skb+0x130/0x360
[ 2078.827752][   T10]      netlink_unicast+0x449/0x710
[ 2078.827752][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2078.827752][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2078.827752][   T10]      ___sys_sendmsg+0xee/0x170
[ 2078.827752][   T10]      __sys_sendmsg+0xcd/0x170
[ 2078.827752][   T10]      do_syscall_64+0xc6/0x1e0
[ 2078.827752][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2078.827752][   T10] 
[ 2078.829500][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2078.829762][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2078.829762][   T10]      dst_init+0x84/0x4a0
[ 2078.829762][   T10]      dst_alloc+0x97/0x150
[ 2078.829762][   T10]      ip6_dst_alloc+0x23/0x90
[ 2078.829762][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2078.829762][   T10]      ip6_pol_route+0x56f/0x840
[ 2078.829762][   T10]      fib6_rule_lookup+0x456/0x630
[ 2078.829762][   T10]      ip6_route_input+0x59c/0xa50
[ 2078.829762][   T10]      ipv6_rcv+0x397/0x810
[ 2078.829762][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2078.829762][   T10]      process_backlog+0x101/0x620
[ 2078.829762][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2078.829762][   T10]      net_rx_action+0x495/0xbe0
[ 2078.829762][   T10]      __do_softirq+0x1b5/0x7f6
[ 2078.829762][   T10] 
[ 2078.831449][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2078.831449][   T10]      netdev_get_by_index+0x5e/0x80
[ 2078.831449][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2078.831449][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2078.831449][   T10]      ip6_route_add+0x1c/0x140
[ 2078.831449][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2078.831449][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2078.831449][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2078.831449][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2078.831449][   T10]      netlink_rcv_skb+0x130/0x360
[ 2078.831449][   T10]      netlink_unicast+0x449/0x710
[ 2078.831449][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2078.831449][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2078.831449][   T10]      ___sys_sendmsg+0xee/0x170
[ 2078.831449][   T10]      __sys_sendmsg+0xcd/0x170
[ 2078.831449][   T10]      do_syscall_64+0xc6/0x1e0
[ 2078.831449][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2078.831449][   T10] 
[ 2078.833537][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2078.833537][   T10]      netdev_get_by_index+0x5e/0x80
[ 2078.833537][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2078.833537][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2078.833537][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2078.833537][   T10]      ipv6_add_addr+0x411/0x2000
[ 2078.833537][   T10]      inet6_addr_add+0x30e/0xa40
[ 2078.833537][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2078.833537][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2078.833537][   T10]      netlink_rcv_skb+0x130/0x360
[ 2078.833537][   T10]      netlink_unicast+0x449/0x710
[ 2078.833537][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2078.833537][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2078.833537][   T10]      ___sys_sendmsg+0xee/0x170
[ 2078.833537][   T10]      __sys_sendmsg+0xcd/0x170
[ 2078.833537][   T10]      do_syscall_64+0xc6/0x1e0
[ 2078.833537][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2078.833537][   T10] 
[ 2078.835592][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2078.835592][   T10]      netdev_get_by_index+0x5e/0x80
[ 2078.835592][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2078.835592][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2078.835592][   T10]      ip6_route_add+0x1c/0x140
[ 2078.835592][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2078.835592][   T10]      addrconf_add_dev+0xe2/0x170
[ 2078.835592][   T10]      inet6_addr_add+0x12f/0xa40
[ 2078.835592][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2078.835592][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2078.835592][   T10]      netlink_rcv_skb+0x130/0x360
[ 2078.835592][   T10]      netlink_unicast+0x449/0x710
[ 2078.835592][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2078.835592][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2078.835592][   T10]      ___sys_sendmsg+0xee/0x170
[ 2078.835592][   T10]      __sys_sendmsg+0xcd/0x170
[ 2078.835592][   T10]      do_syscall_64+0xc6/0x1e0
[ 2078.835592][   T10] 
[ 2078.837608][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2078.837608][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2078.837608][   T10]      ipv6_find_idev+0x102/0x170
[ 2078.837608][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2078.837608][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2078.837608][   T10]      netlink_rcv_skb+0x130/0x360
[ 2078.837608][   T10]      netlink_unicast+0x449/0x710
[ 2078.837608][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2078.837608][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2078.837608][   T10]      ___sys_sendmsg+0xee/0x170
[ 2078.837608][   T10]      __sys_sendmsg+0xcd/0x170
[ 2078.837608][   T10]      do_syscall_64+0xc6/0x1e0
[ 2078.837608][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2078.837608][   T10] 
[ 2078.839189][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2078.839189][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2078.839189][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2078.839189][   T10]      ipv6_find_idev+0x102/0x170
[ 2078.839189][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2078.839189][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2078.839189][   T10]      netlink_rcv_skb+0x130/0x360
[ 2078.839189][   T10]      netlink_unicast+0x449/0x710
[ 2078.839189][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2078.839189][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2078.839189][   T10]      ___sys_sendmsg+0xee/0x170
[ 2078.839189][   T10]      __sys_sendmsg+0xcd/0x170
[ 2078.839189][   T10]      do_syscall_64+0xc6/0x1e0
[ 2078.839189][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2078.839189][   T10] 
[ 2089.081805][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2089.082268][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2089.082268][   T10]      dst_init+0x84/0x4a0
[ 2089.082268][   T10]      dst_alloc+0x97/0x150
[ 2089.082268][   T10]      ip6_dst_alloc+0x23/0x90
[ 2089.082268][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2089.082268][   T10]      ip6_pol_route+0x56f/0x840
[ 2089.082268][   T10]      fib6_rule_lookup+0x456/0x630
[ 2089.082268][   T10]      ip6_route_input+0x59c/0xa50
[ 2089.082268][   T10]      ipv6_rcv+0x397/0x810
[ 2089.082268][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2089.082268][   T10]      process_backlog+0x101/0x620
[ 2089.082268][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2089.082268][   T10]      net_rx_action+0x495/0xbe0
[ 2089.082268][   T10]      __do_softirq+0x1b5/0x7f6
[ 2089.082268][   T10] 
[ 2089.084023][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2089.084023][   T10]      netdev_get_by_index+0x5e/0x80
[ 2089.084023][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2089.084023][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2089.084023][   T10]      ip6_route_add+0x1c/0x140
[ 2089.084023][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2089.084023][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2089.084023][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2089.084023][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2089.084023][   T10]      netlink_rcv_skb+0x130/0x360
[ 2089.084023][   T10]      netlink_unicast+0x449/0x710
[ 2089.084023][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2089.084023][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2089.084023][   T10]      ___sys_sendmsg+0xee/0x170
[ 2089.084023][   T10]      __sys_sendmsg+0xcd/0x170
[ 2089.084023][   T10]      do_syscall_64+0xc6/0x1e0
[ 2089.084023][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2089.084023][   T10] 
[ 2089.086085][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2089.086085][   T10]      netdev_get_by_index+0x5e/0x80
[ 2089.086085][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2089.086085][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2089.086085][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2089.086085][   T10]      ipv6_add_addr+0x411/0x2000
[ 2089.086085][   T10]      inet6_addr_add+0x30e/0xa40
[ 2089.086085][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2089.086085][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2089.086085][   T10]      netlink_rcv_skb+0x130/0x360
[ 2089.086085][   T10]      netlink_unicast+0x449/0x710
[ 2089.086085][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2089.086085][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2089.086085][   T10]      ___sys_sendmsg+0xee/0x170
[ 2089.086085][   T10]      __sys_sendmsg+0xcd/0x170
[ 2089.086085][   T10]      do_syscall_64+0xc6/0x1e0
[ 2089.086085][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2089.086085][   T10] 
[ 2089.088153][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2089.088153][   T10]      netdev_get_by_index+0x5e/0x80
[ 2089.088153][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2089.088153][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2089.088153][   T10]      ip6_route_add+0x1c/0x140
[ 2089.088153][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2089.088153][   T10]      addrconf_add_dev+0xe2/0x170
[ 2089.088153][   T10]      inet6_addr_add+0x12f/0xa40
[ 2089.088153][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2089.088153][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2089.088153][   T10]      netlink_rcv_skb+0x130/0x360
[ 2089.088153][   T10]      netlink_unicast+0x449/0x710
[ 2089.088153][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2089.088153][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2089.088153][   T10]      ___sys_sendmsg+0xee/0x170
[ 2089.088153][   T10]      __sys_sendmsg+0xcd/0x170
[ 2089.088153][   T10]      do_syscall_64+0xc6/0x1e0
[ 2089.088153][   T10] 
[ 2089.090171][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2089.090171][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2089.090171][   T10]      ipv6_find_idev+0x102/0x170
[ 2089.090171][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2089.090171][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2089.090171][   T10]      netlink_rcv_skb+0x130/0x360
[ 2089.090171][   T10]      netlink_unicast+0x449/0x710
[ 2089.090171][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2089.090171][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2089.090171][   T10]      ___sys_sendmsg+0xee/0x170
[ 2089.090171][   T10]      __sys_sendmsg+0xcd/0x170
[ 2089.090171][   T10]      do_syscall_64+0xc6/0x1e0
[ 2089.090171][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2089.090171][   T10] 
[ 2089.091754][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2089.091754][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2089.091754][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2089.091754][   T10]      ipv6_find_idev+0x102/0x170
[ 2089.091754][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2089.091754][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2089.091754][   T10]      netlink_rcv_skb+0x130/0x360
[ 2089.091754][   T10]      netlink_unicast+0x449/0x710
[ 2089.091754][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2089.091754][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2089.091754][   T10]      ___sys_sendmsg+0xee/0x170
[ 2089.091754][   T10]      __sys_sendmsg+0xcd/0x170
[ 2089.091754][   T10]      do_syscall_64+0xc6/0x1e0
[ 2089.091754][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2089.091754][   T10] 
[ 2089.093499][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2089.093776][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2089.093776][   T10]      dst_init+0x84/0x4a0
[ 2089.093776][   T10]      dst_alloc+0x97/0x150
[ 2089.093776][   T10]      ip6_dst_alloc+0x23/0x90
[ 2089.093776][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2089.093776][   T10]      ip6_pol_route+0x56f/0x840
[ 2089.093776][   T10]      fib6_rule_lookup+0x456/0x630
[ 2089.093776][   T10]      ip6_route_input+0x59c/0xa50
[ 2089.093776][   T10]      ipv6_rcv+0x397/0x810
[ 2089.093776][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2089.093776][   T10]      process_backlog+0x101/0x620
[ 2089.093776][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2089.093776][   T10]      net_rx_action+0x495/0xbe0
[ 2089.093776][   T10]      __do_softirq+0x1b5/0x7f6
[ 2089.093776][   T10] 
[ 2089.095456][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2089.095456][   T10]      netdev_get_by_index+0x5e/0x80
[ 2089.095456][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2089.095456][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2089.095456][   T10]      ip6_route_add+0x1c/0x140
[ 2089.095456][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2089.095456][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2089.095456][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2089.095456][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2089.095456][   T10]      netlink_rcv_skb+0x130/0x360
[ 2089.095456][   T10]      netlink_unicast+0x449/0x710
[ 2089.095456][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2089.095456][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2089.095456][   T10]      ___sys_sendmsg+0xee/0x170
[ 2089.095456][   T10]      __sys_sendmsg+0xcd/0x170
[ 2089.095456][   T10]      do_syscall_64+0xc6/0x1e0
[ 2089.095456][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2089.095456][   T10] 
[ 2089.097519][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2089.097519][   T10]      netdev_get_by_index+0x5e/0x80
[ 2089.097519][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2089.097519][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2089.097519][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2089.097519][   T10]      ipv6_add_addr+0x411/0x2000
[ 2089.097519][   T10]      inet6_addr_add+0x30e/0xa40
[ 2089.097519][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2089.097519][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2089.097519][   T10]      netlink_rcv_skb+0x130/0x360
[ 2089.097519][   T10]      netlink_unicast+0x449/0x710
[ 2089.097519][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2089.097519][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2089.097519][   T10]      ___sys_sendmsg+0xee/0x170
[ 2089.097519][   T10]      __sys_sendmsg+0xcd/0x170
[ 2089.097519][   T10]      do_syscall_64+0xc6/0x1e0
[ 2089.097519][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2089.097519][   T10] 
[ 2089.099569][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2089.099569][   T10]      netdev_get_by_index+0x5e/0x80
[ 2089.099569][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2089.099569][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2089.099569][   T10]      ip6_route_add+0x1c/0x140
[ 2089.099569][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2089.099569][   T10]      addrconf_add_dev+0xe2/0x170
[ 2089.099569][   T10]      inet6_addr_add+0x12f/0xa40
[ 2089.099569][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2089.099569][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2089.099569][   T10]      netlink_rcv_skb+0x130/0x360
[ 2089.099569][   T10]      netlink_unicast+0x449/0x710
[ 2089.099569][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2089.099569][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2089.099569][   T10]      ___sys_sendmsg+0xee/0x170
[ 2089.099569][   T10]      __sys_sendmsg+0xcd/0x170
[ 2089.099569][   T10]      do_syscall_64+0xc6/0x1e0
[ 2089.099569][   T10] 
[ 2089.101581][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2089.101581][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2089.101581][   T10]      ipv6_find_idev+0x102/0x170
[ 2089.101581][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2089.101581][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2089.101581][   T10]      netlink_rcv_skb+0x130/0x360
[ 2089.101581][   T10]      netlink_unicast+0x449/0x710
[ 2089.101581][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2089.101581][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2089.101581][   T10]      ___sys_sendmsg+0xee/0x170
[ 2089.101581][   T10]      __sys_sendmsg+0xcd/0x170
[ 2089.101581][   T10]      do_syscall_64+0xc6/0x1e0
[ 2089.101581][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2089.101581][   T10] 
[ 2089.103159][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2089.103159][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2089.103159][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2089.103159][   T10]      ipv6_find_idev+0x102/0x170
[ 2089.103159][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2089.103159][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2089.103159][   T10]      netlink_rcv_skb+0x130/0x360
[ 2089.103159][   T10]      netlink_unicast+0x449/0x710
[ 2089.103159][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2089.103159][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2089.103159][   T10]      ___sys_sendmsg+0xee/0x170
[ 2089.103159][   T10]      __sys_sendmsg+0xcd/0x170
[ 2089.103159][   T10]      do_syscall_64+0xc6/0x1e0
[ 2089.103159][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2089.103159][   T10] 
[ 2099.345785][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2099.346201][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2099.346201][   T10]      dst_init+0x84/0x4a0
[ 2099.346201][   T10]      dst_alloc+0x97/0x150
[ 2099.346201][   T10]      ip6_dst_alloc+0x23/0x90
[ 2099.346201][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2099.346201][   T10]      ip6_pol_route+0x56f/0x840
[ 2099.346201][   T10]      fib6_rule_lookup+0x456/0x630
[ 2099.346201][   T10]      ip6_route_input+0x59c/0xa50
[ 2099.346201][   T10]      ipv6_rcv+0x397/0x810
[ 2099.346201][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2099.346201][   T10]      process_backlog+0x101/0x620
[ 2099.346201][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2099.346201][   T10]      net_rx_action+0x495/0xbe0
[ 2099.346201][   T10]      __do_softirq+0x1b5/0x7f6
[ 2099.346201][   T10] 
[ 2099.347930][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2099.347930][   T10]      netdev_get_by_index+0x5e/0x80
[ 2099.347930][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2099.347930][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2099.347930][   T10]      ip6_route_add+0x1c/0x140
[ 2099.347930][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2099.347930][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2099.347930][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2099.347930][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2099.347930][   T10]      netlink_rcv_skb+0x130/0x360
[ 2099.347930][   T10]      netlink_unicast+0x449/0x710
[ 2099.347930][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2099.347930][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2099.347930][   T10]      ___sys_sendmsg+0xee/0x170
[ 2099.347930][   T10]      __sys_sendmsg+0xcd/0x170
[ 2099.347930][   T10]      do_syscall_64+0xc6/0x1e0
[ 2099.347930][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2099.347930][   T10] 
[ 2099.349997][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2099.349997][   T10]      netdev_get_by_index+0x5e/0x80
[ 2099.349997][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2099.349997][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2099.349997][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2099.349997][   T10]      ipv6_add_addr+0x411/0x2000
[ 2099.349997][   T10]      inet6_addr_add+0x30e/0xa40
[ 2099.349997][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2099.349997][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2099.349997][   T10]      netlink_rcv_skb+0x130/0x360
[ 2099.349997][   T10]      netlink_unicast+0x449/0x710
[ 2099.349997][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2099.349997][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2099.349997][   T10]      ___sys_sendmsg+0xee/0x170
[ 2099.349997][   T10]      __sys_sendmsg+0xcd/0x170
[ 2099.349997][   T10]      do_syscall_64+0xc6/0x1e0
[ 2099.349997][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2099.349997][   T10] 
[ 2099.352070][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2099.352070][   T10]      netdev_get_by_index+0x5e/0x80
[ 2099.352070][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2099.352070][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2099.352070][   T10]      ip6_route_add+0x1c/0x140
[ 2099.352070][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2099.352070][   T10]      addrconf_add_dev+0xe2/0x170
[ 2099.352070][   T10]      inet6_addr_add+0x12f/0xa40
[ 2099.352070][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2099.352070][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2099.352070][   T10]      netlink_rcv_skb+0x130/0x360
[ 2099.352070][   T10]      netlink_unicast+0x449/0x710
[ 2099.352070][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2099.352070][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2099.352070][   T10]      ___sys_sendmsg+0xee/0x170
[ 2099.352070][   T10]      __sys_sendmsg+0xcd/0x170
[ 2099.352070][   T10]      do_syscall_64+0xc6/0x1e0
[ 2099.352070][   T10] 
[ 2099.354088][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2099.354088][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2099.354088][   T10]      ipv6_find_idev+0x102/0x170
[ 2099.354088][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2099.354088][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2099.354088][   T10]      netlink_rcv_skb+0x130/0x360
[ 2099.354088][   T10]      netlink_unicast+0x449/0x710
[ 2099.354088][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2099.354088][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2099.354088][   T10]      ___sys_sendmsg+0xee/0x170
[ 2099.354088][   T10]      __sys_sendmsg+0xcd/0x170
[ 2099.354088][   T10]      do_syscall_64+0xc6/0x1e0
[ 2099.354088][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2099.354088][   T10] 
[ 2099.355666][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2099.355666][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2099.355666][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2099.355666][   T10]      ipv6_find_idev+0x102/0x170
[ 2099.355666][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2099.355666][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2099.355666][   T10]      netlink_rcv_skb+0x130/0x360
[ 2099.355666][   T10]      netlink_unicast+0x449/0x710
[ 2099.355666][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2099.355666][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2099.355666][   T10]      ___sys_sendmsg+0xee/0x170
[ 2099.355666][   T10]      __sys_sendmsg+0xcd/0x170
[ 2099.355666][   T10]      do_syscall_64+0xc6/0x1e0
[ 2099.355666][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2099.355666][   T10] 
[ 2099.357404][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2099.357655][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2099.357655][   T10]      dst_init+0x84/0x4a0
[ 2099.357655][   T10]      dst_alloc+0x97/0x150
[ 2099.357655][   T10]      ip6_dst_alloc+0x23/0x90
[ 2099.357655][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2099.357655][   T10]      ip6_pol_route+0x56f/0x840
[ 2099.357655][   T10]      fib6_rule_lookup+0x456/0x630
[ 2099.357655][   T10]      ip6_route_input+0x59c/0xa50
[ 2099.357655][   T10]      ipv6_rcv+0x397/0x810
[ 2099.357655][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2099.357655][   T10]      process_backlog+0x101/0x620
[ 2099.357655][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2099.357655][   T10]      net_rx_action+0x495/0xbe0
[ 2099.357655][   T10]      __do_softirq+0x1b5/0x7f6
[ 2099.357655][   T10] 
[ 2099.359338][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2099.359338][   T10]      netdev_get_by_index+0x5e/0x80
[ 2099.359338][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2099.359338][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2099.359338][   T10]      ip6_route_add+0x1c/0x140
[ 2099.359338][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2099.359338][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2099.359338][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2099.359338][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2099.359338][   T10]      netlink_rcv_skb+0x130/0x360
[ 2099.359338][   T10]      netlink_unicast+0x449/0x710
[ 2099.359338][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2099.359338][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2099.359338][   T10]      ___sys_sendmsg+0xee/0x170
[ 2099.359338][   T10]      __sys_sendmsg+0xcd/0x170
[ 2099.359338][   T10]      do_syscall_64+0xc6/0x1e0
[ 2099.359338][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2099.359338][   T10] 
[ 2099.361409][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2099.361409][   T10]      netdev_get_by_index+0x5e/0x80
[ 2099.361409][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2099.361409][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2099.361409][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2099.361409][   T10]      ipv6_add_addr+0x411/0x2000
[ 2099.361409][   T10]      inet6_addr_add+0x30e/0xa40
[ 2099.361409][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2099.361409][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2099.361409][   T10]      netlink_rcv_skb+0x130/0x360
[ 2099.361409][   T10]      netlink_unicast+0x449/0x710
[ 2099.361409][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2099.361409][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2099.361409][   T10]      ___sys_sendmsg+0xee/0x170
[ 2099.361409][   T10]      __sys_sendmsg+0xcd/0x170
[ 2099.361409][   T10]      do_syscall_64+0xc6/0x1e0
[ 2099.361409][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2099.361409][   T10] 
[ 2099.363470][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2099.363470][   T10]      netdev_get_by_index+0x5e/0x80
[ 2099.363470][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2099.363470][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2099.363470][   T10]      ip6_route_add+0x1c/0x140
[ 2099.363470][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2099.363470][   T10]      addrconf_add_dev+0xe2/0x170
[ 2099.363470][   T10]      inet6_addr_add+0x12f/0xa40
[ 2099.363470][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2099.363470][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2099.363470][   T10]      netlink_rcv_skb+0x130/0x360
[ 2099.363470][   T10]      netlink_unicast+0x449/0x710
[ 2099.363470][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2099.363470][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2099.363470][   T10]      ___sys_sendmsg+0xee/0x170
[ 2099.363470][   T10]      __sys_sendmsg+0xcd/0x170
[ 2099.363470][   T10]      do_syscall_64+0xc6/0x1e0
[ 2099.363470][   T10] 
[ 2099.365479][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2099.365479][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2099.365479][   T10]      ipv6_find_idev+0x102/0x170
[ 2099.365479][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2099.365479][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2099.365479][   T10]      netlink_rcv_skb+0x130/0x360
[ 2099.365479][   T10]      netlink_unicast+0x449/0x710
[ 2099.365479][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2099.365479][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2099.365479][   T10]      ___sys_sendmsg+0xee/0x170
[ 2099.365479][   T10]      __sys_sendmsg+0xcd/0x170
[ 2099.365479][   T10]      do_syscall_64+0xc6/0x1e0
[ 2099.365479][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2099.365479][   T10] 
[ 2099.367067][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2099.367067][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2099.367067][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2099.367067][   T10]      ipv6_find_idev+0x102/0x170
[ 2099.367067][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2099.367067][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2099.367067][   T10]      netlink_rcv_skb+0x130/0x360
[ 2099.367067][   T10]      netlink_unicast+0x449/0x710
[ 2099.367067][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2099.367067][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2099.367067][   T10]      ___sys_sendmsg+0xee/0x170
[ 2099.367067][   T10]      __sys_sendmsg+0xcd/0x170
[ 2099.367067][   T10]      do_syscall_64+0xc6/0x1e0
[ 2099.367067][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2099.367067][   T10] 
[ 2109.609790][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2109.610201][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2109.610201][   T10]      dst_init+0x84/0x4a0
[ 2109.610201][   T10]      dst_alloc+0x97/0x150
[ 2109.610201][   T10]      ip6_dst_alloc+0x23/0x90
[ 2109.610201][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2109.610201][   T10]      ip6_pol_route+0x56f/0x840
[ 2109.610201][   T10]      fib6_rule_lookup+0x456/0x630
[ 2109.610201][   T10]      ip6_route_input+0x59c/0xa50
[ 2109.610201][   T10]      ipv6_rcv+0x397/0x810
[ 2109.610201][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2109.610201][   T10]      process_backlog+0x101/0x620
[ 2109.610201][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2109.610201][   T10]      net_rx_action+0x495/0xbe0
[ 2109.610201][   T10]      __do_softirq+0x1b5/0x7f6
[ 2109.610201][   T10] 
[ 2109.611929][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2109.611929][   T10]      netdev_get_by_index+0x5e/0x80
[ 2109.611929][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2109.611929][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2109.611929][   T10]      ip6_route_add+0x1c/0x140
[ 2109.611929][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2109.611929][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2109.611929][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2109.611929][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2109.611929][   T10]      netlink_rcv_skb+0x130/0x360
[ 2109.611929][   T10]      netlink_unicast+0x449/0x710
[ 2109.611929][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2109.611929][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2109.611929][   T10]      ___sys_sendmsg+0xee/0x170
[ 2109.611929][   T10]      __sys_sendmsg+0xcd/0x170
[ 2109.611929][   T10]      do_syscall_64+0xc6/0x1e0
[ 2109.611929][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2109.611929][   T10] 
[ 2109.613997][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2109.613997][   T10]      netdev_get_by_index+0x5e/0x80
[ 2109.613997][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2109.613997][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2109.613997][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2109.613997][   T10]      ipv6_add_addr+0x411/0x2000
[ 2109.613997][   T10]      inet6_addr_add+0x30e/0xa40
[ 2109.613997][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2109.613997][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2109.613997][   T10]      netlink_rcv_skb+0x130/0x360
[ 2109.613997][   T10]      netlink_unicast+0x449/0x710
[ 2109.613997][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2109.613997][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2109.613997][   T10]      ___sys_sendmsg+0xee/0x170
[ 2109.613997][   T10]      __sys_sendmsg+0xcd/0x170
[ 2109.613997][   T10]      do_syscall_64+0xc6/0x1e0
[ 2109.613997][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2109.613997][   T10] 
[ 2109.616055][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2109.616055][   T10]      netdev_get_by_index+0x5e/0x80
[ 2109.616055][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2109.616055][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2109.616055][   T10]      ip6_route_add+0x1c/0x140
[ 2109.616055][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2109.616055][   T10]      addrconf_add_dev+0xe2/0x170
[ 2109.616055][   T10]      inet6_addr_add+0x12f/0xa40
[ 2109.616055][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2109.616055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2109.616055][   T10]      netlink_rcv_skb+0x130/0x360
[ 2109.616055][   T10]      netlink_unicast+0x449/0x710
[ 2109.616055][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2109.616055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2109.616055][   T10]      ___sys_sendmsg+0xee/0x170
[ 2109.616055][   T10]      __sys_sendmsg+0xcd/0x170
[ 2109.616055][   T10]      do_syscall_64+0xc6/0x1e0
[ 2109.616055][   T10] 
[ 2109.618135][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2109.618135][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2109.618135][   T10]      ipv6_find_idev+0x102/0x170
[ 2109.618135][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2109.618135][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2109.618135][   T10]      netlink_rcv_skb+0x130/0x360
[ 2109.618135][   T10]      netlink_unicast+0x449/0x710
[ 2109.618135][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2109.618135][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2109.618135][   T10]      ___sys_sendmsg+0xee/0x170
[ 2109.618135][   T10]      __sys_sendmsg+0xcd/0x170
[ 2109.618135][   T10]      do_syscall_64+0xc6/0x1e0
[ 2109.618135][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2109.618135][   T10] 
[ 2109.619681][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2109.619681][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2109.619681][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2109.619681][   T10]      ipv6_find_idev+0x102/0x170
[ 2109.619681][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2109.619681][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2109.619681][   T10]      netlink_rcv_skb+0x130/0x360
[ 2109.619681][   T10]      netlink_unicast+0x449/0x710
[ 2109.619681][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2109.619681][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2109.619681][   T10]      ___sys_sendmsg+0xee/0x170
[ 2109.619681][   T10]      __sys_sendmsg+0xcd/0x170
[ 2109.619681][   T10]      do_syscall_64+0xc6/0x1e0
[ 2109.619681][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2109.619681][   T10] 
[ 2109.621380][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2109.621618][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2109.621618][   T10]      dst_init+0x84/0x4a0
[ 2109.621618][   T10]      dst_alloc+0x97/0x150
[ 2109.621618][   T10]      ip6_dst_alloc+0x23/0x90
[ 2109.621618][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2109.621618][   T10]      ip6_pol_route+0x56f/0x840
[ 2109.621618][   T10]      fib6_rule_lookup+0x456/0x630
[ 2109.621618][   T10]      ip6_route_input+0x59c/0xa50
[ 2109.621618][   T10]      ipv6_rcv+0x397/0x810
[ 2109.621618][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2109.621618][   T10]      process_backlog+0x101/0x620
[ 2109.621618][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2109.621618][   T10]      net_rx_action+0x495/0xbe0
[ 2109.621618][   T10]      __do_softirq+0x1b5/0x7f6
[ 2109.621618][   T10] 
[ 2109.623270][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2109.623270][   T10]      netdev_get_by_index+0x5e/0x80
[ 2109.623270][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2109.623270][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2109.623270][   T10]      ip6_route_add+0x1c/0x140
[ 2109.623270][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2109.623270][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2109.623270][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2109.623270][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2109.623270][   T10]      netlink_rcv_skb+0x130/0x360
[ 2109.623270][   T10]      netlink_unicast+0x449/0x710
[ 2109.623270][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2109.623270][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2109.623270][   T10]      ___sys_sendmsg+0xee/0x170
[ 2109.623270][   T10]      __sys_sendmsg+0xcd/0x170
[ 2109.623270][   T10]      do_syscall_64+0xc6/0x1e0
[ 2109.623270][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2109.623270][   T10] 
[ 2109.625286][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2109.625286][   T10]      netdev_get_by_index+0x5e/0x80
[ 2109.625286][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2109.625286][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2109.625286][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2109.625286][   T10]      ipv6_add_addr+0x411/0x2000
[ 2109.625286][   T10]      inet6_addr_add+0x30e/0xa40
[ 2109.625286][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2109.625286][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2109.625286][   T10]      netlink_rcv_skb+0x130/0x360
[ 2109.625286][   T10]      netlink_unicast+0x449/0x710
[ 2109.625286][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2109.625286][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2109.625286][   T10]      ___sys_sendmsg+0xee/0x170
[ 2109.625286][   T10]      __sys_sendmsg+0xcd/0x170
[ 2109.625286][   T10]      do_syscall_64+0xc6/0x1e0
[ 2109.625286][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2109.625286][   T10] 
[ 2109.627287][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2109.627287][   T10]      netdev_get_by_index+0x5e/0x80
[ 2109.627287][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2109.627287][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2109.627287][   T10]      ip6_route_add+0x1c/0x140
[ 2109.627287][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2109.627287][   T10]      addrconf_add_dev+0xe2/0x170
[ 2109.627287][   T10]      inet6_addr_add+0x12f/0xa40
[ 2109.627287][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2109.627287][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2109.627287][   T10]      netlink_rcv_skb+0x130/0x360
[ 2109.627287][   T10]      netlink_unicast+0x449/0x710
[ 2109.627287][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2109.627287][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2109.627287][   T10]      ___sys_sendmsg+0xee/0x170
[ 2109.627287][   T10]      __sys_sendmsg+0xcd/0x170
[ 2109.627287][   T10]      do_syscall_64+0xc6/0x1e0
[ 2109.627287][   T10] 
[ 2109.629246][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2109.629246][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2109.629246][   T10]      ipv6_find_idev+0x102/0x170
[ 2109.629246][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2109.629246][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2109.629246][   T10]      netlink_rcv_skb+0x130/0x360
[ 2109.629246][   T10]      netlink_unicast+0x449/0x710
[ 2109.629246][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2109.629246][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2109.629246][   T10]      ___sys_sendmsg+0xee/0x170
[ 2109.629246][   T10]      __sys_sendmsg+0xcd/0x170
[ 2109.629246][   T10]      do_syscall_64+0xc6/0x1e0
[ 2109.629246][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2109.629246][   T10] 
[ 2109.630783][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2109.630783][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2109.630783][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2109.630783][   T10]      ipv6_find_idev+0x102/0x170
[ 2109.630783][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2109.630783][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2109.630783][   T10]      netlink_rcv_skb+0x130/0x360
[ 2109.630783][   T10]      netlink_unicast+0x449/0x710
[ 2109.630783][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2109.630783][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2109.630783][   T10]      ___sys_sendmsg+0xee/0x170
[ 2109.630783][   T10]      __sys_sendmsg+0xcd/0x170
[ 2109.630783][   T10]      do_syscall_64+0xc6/0x1e0
[ 2109.630783][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2109.630783][   T10] 
[ 2119.873778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2119.874225][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2119.874225][   T10]      dst_init+0x84/0x4a0
[ 2119.874225][   T10]      dst_alloc+0x97/0x150
[ 2119.874225][   T10]      ip6_dst_alloc+0x23/0x90
[ 2119.874225][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2119.874225][   T10]      ip6_pol_route+0x56f/0x840
[ 2119.874225][   T10]      fib6_rule_lookup+0x456/0x630
[ 2119.874225][   T10]      ip6_route_input+0x59c/0xa50
[ 2119.874225][   T10]      ipv6_rcv+0x397/0x810
[ 2119.874225][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2119.874225][   T10]      process_backlog+0x101/0x620
[ 2119.874225][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2119.874225][   T10]      net_rx_action+0x495/0xbe0
[ 2119.874225][   T10]      __do_softirq+0x1b5/0x7f6
[ 2119.874225][   T10] 
[ 2119.875914][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2119.875914][   T10]      netdev_get_by_index+0x5e/0x80
[ 2119.875914][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2119.875914][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2119.875914][   T10]      ip6_route_add+0x1c/0x140
[ 2119.875914][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2119.875914][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2119.875914][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2119.875914][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2119.875914][   T10]      netlink_rcv_skb+0x130/0x360
[ 2119.875914][   T10]      netlink_unicast+0x449/0x710
[ 2119.875914][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2119.875914][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2119.875914][   T10]      ___sys_sendmsg+0xee/0x170
[ 2119.875914][   T10]      __sys_sendmsg+0xcd/0x170
[ 2119.875914][   T10]      do_syscall_64+0xc6/0x1e0
[ 2119.875914][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2119.875914][   T10] 
[ 2119.877931][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2119.877931][   T10]      netdev_get_by_index+0x5e/0x80
[ 2119.877931][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2119.877931][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2119.877931][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2119.877931][   T10]      ipv6_add_addr+0x411/0x2000
[ 2119.877931][   T10]      inet6_addr_add+0x30e/0xa40
[ 2119.877931][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2119.877931][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2119.877931][   T10]      netlink_rcv_skb+0x130/0x360
[ 2119.877931][   T10]      netlink_unicast+0x449/0x710
[ 2119.877931][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2119.877931][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2119.877931][   T10]      ___sys_sendmsg+0xee/0x170
[ 2119.877931][   T10]      __sys_sendmsg+0xcd/0x170
[ 2119.877931][   T10]      do_syscall_64+0xc6/0x1e0
[ 2119.877931][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2119.877931][   T10] 
[ 2119.879932][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2119.879932][   T10]      netdev_get_by_index+0x5e/0x80
[ 2119.879932][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2119.879932][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2119.879932][   T10]      ip6_route_add+0x1c/0x140
[ 2119.879932][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2119.879932][   T10]      addrconf_add_dev+0xe2/0x170
[ 2119.879932][   T10]      inet6_addr_add+0x12f/0xa40
[ 2119.879932][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2119.879932][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2119.879932][   T10]      netlink_rcv_skb+0x130/0x360
[ 2119.879932][   T10]      netlink_unicast+0x449/0x710
[ 2119.879932][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2119.879932][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2119.879932][   T10]      ___sys_sendmsg+0xee/0x170
[ 2119.879932][   T10]      __sys_sendmsg+0xcd/0x170
[ 2119.879932][   T10]      do_syscall_64+0xc6/0x1e0
[ 2119.879932][   T10] 
[ 2119.881897][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2119.881897][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2119.881897][   T10]      ipv6_find_idev+0x102/0x170
[ 2119.881897][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2119.881897][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2119.881897][   T10]      netlink_rcv_skb+0x130/0x360
[ 2119.881897][   T10]      netlink_unicast+0x449/0x710
[ 2119.881897][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2119.881897][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2119.881897][   T10]      ___sys_sendmsg+0xee/0x170
[ 2119.881897][   T10]      __sys_sendmsg+0xcd/0x170
[ 2119.881897][   T10]      do_syscall_64+0xc6/0x1e0
[ 2119.881897][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2119.881897][   T10] 
[ 2119.883452][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2119.883452][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2119.883452][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2119.883452][   T10]      ipv6_find_idev+0x102/0x170
[ 2119.883452][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2119.883452][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2119.883452][   T10]      netlink_rcv_skb+0x130/0x360
[ 2119.883452][   T10]      netlink_unicast+0x449/0x710
[ 2119.883452][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2119.883452][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2119.883452][   T10]      ___sys_sendmsg+0xee/0x170
[ 2119.883452][   T10]      __sys_sendmsg+0xcd/0x170
[ 2119.883452][   T10]      do_syscall_64+0xc6/0x1e0
[ 2119.883452][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2119.883452][   T10] 
[ 2119.885157][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2119.885404][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2119.885404][   T10]      dst_init+0x84/0x4a0
[ 2119.885404][   T10]      dst_alloc+0x97/0x150
[ 2119.885404][   T10]      ip6_dst_alloc+0x23/0x90
[ 2119.885404][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2119.885404][   T10]      ip6_pol_route+0x56f/0x840
[ 2119.885404][   T10]      fib6_rule_lookup+0x456/0x630
[ 2119.885404][   T10]      ip6_route_input+0x59c/0xa50
[ 2119.885404][   T10]      ipv6_rcv+0x397/0x810
[ 2119.885404][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2119.885404][   T10]      process_backlog+0x101/0x620
[ 2119.885404][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2119.885404][   T10]      net_rx_action+0x495/0xbe0
[ 2119.885404][   T10]      __do_softirq+0x1b5/0x7f6
[ 2119.885404][   T10] 
[ 2119.887042][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2119.887042][   T10]      netdev_get_by_index+0x5e/0x80
[ 2119.887042][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2119.887042][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2119.887042][   T10]      ip6_route_add+0x1c/0x140
[ 2119.887042][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2119.887042][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2119.887042][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2119.887042][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2119.887042][   T10]      netlink_rcv_skb+0x130/0x360
[ 2119.887042][   T10]      netlink_unicast+0x449/0x710
[ 2119.887042][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2119.887042][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2119.887042][   T10]      ___sys_sendmsg+0xee/0x170
[ 2119.887042][   T10]      __sys_sendmsg+0xcd/0x170
[ 2119.887042][   T10]      do_syscall_64+0xc6/0x1e0
[ 2119.887042][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2119.887042][   T10] 
[ 2119.889044][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2119.889044][   T10]      netdev_get_by_index+0x5e/0x80
[ 2119.889044][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2119.889044][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2119.889044][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2119.889044][   T10]      ipv6_add_addr+0x411/0x2000
[ 2119.889044][   T10]      inet6_addr_add+0x30e/0xa40
[ 2119.889044][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2119.889044][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2119.889044][   T10]      netlink_rcv_skb+0x130/0x360
[ 2119.889044][   T10]      netlink_unicast+0x449/0x710
[ 2119.889044][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2119.889044][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2119.889044][   T10]      ___sys_sendmsg+0xee/0x170
[ 2119.889044][   T10]      __sys_sendmsg+0xcd/0x170
[ 2119.889044][   T10]      do_syscall_64+0xc6/0x1e0
[ 2119.889044][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2119.889044][   T10] 
[ 2119.891047][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2119.891047][   T10]      netdev_get_by_index+0x5e/0x80
[ 2119.891047][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2119.891047][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2119.891047][   T10]      ip6_route_add+0x1c/0x140
[ 2119.891047][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2119.891047][   T10]      addrconf_add_dev+0xe2/0x170
[ 2119.891047][   T10]      inet6_addr_add+0x12f/0xa40
[ 2119.891047][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2119.891047][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2119.891047][   T10]      netlink_rcv_skb+0x130/0x360
[ 2119.891047][   T10]      netlink_unicast+0x449/0x710
[ 2119.891047][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2119.891047][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2119.891047][   T10]      ___sys_sendmsg+0xee/0x170
[ 2119.891047][   T10]      __sys_sendmsg+0xcd/0x170
[ 2119.891047][   T10]      do_syscall_64+0xc6/0x1e0
[ 2119.891047][   T10] 
[ 2119.893011][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2119.893011][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2119.893011][   T10]      ipv6_find_idev+0x102/0x170
[ 2119.893011][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2119.893011][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2119.893011][   T10]      netlink_rcv_skb+0x130/0x360
[ 2119.893011][   T10]      netlink_unicast+0x449/0x710
[ 2119.893011][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2119.893011][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2119.893011][   T10]      ___sys_sendmsg+0xee/0x170
[ 2119.893011][   T10]      __sys_sendmsg+0xcd/0x170
[ 2119.893011][   T10]      do_syscall_64+0xc6/0x1e0
[ 2119.893011][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2119.893011][   T10] 
[ 2119.894547][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2119.894547][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2119.894547][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2119.894547][   T10]      ipv6_find_idev+0x102/0x170
[ 2119.894547][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2119.894547][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2119.894547][   T10]      netlink_rcv_skb+0x130/0x360
[ 2119.894547][   T10]      netlink_unicast+0x449/0x710
[ 2119.894547][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2119.894547][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2119.894547][   T10]      ___sys_sendmsg+0xee/0x170
[ 2119.894547][   T10]      __sys_sendmsg+0xcd/0x170
[ 2119.894547][   T10]      do_syscall_64+0xc6/0x1e0
[ 2119.894547][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2119.894547][   T10] 
[ 2130.137784][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2130.138233][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2130.138233][   T10]      dst_init+0x84/0x4a0
[ 2130.138233][   T10]      dst_alloc+0x97/0x150
[ 2130.138233][   T10]      ip6_dst_alloc+0x23/0x90
[ 2130.138233][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2130.138233][   T10]      ip6_pol_route+0x56f/0x840
[ 2130.138233][   T10]      fib6_rule_lookup+0x456/0x630
[ 2130.138233][   T10]      ip6_route_input+0x59c/0xa50
[ 2130.138233][   T10]      ipv6_rcv+0x397/0x810
[ 2130.138233][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2130.138233][   T10]      process_backlog+0x101/0x620
[ 2130.138233][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2130.138233][   T10]      net_rx_action+0x495/0xbe0
[ 2130.138233][   T10]      __do_softirq+0x1b5/0x7f6
[ 2130.138233][   T10] 
[ 2130.139921][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2130.139921][   T10]      netdev_get_by_index+0x5e/0x80
[ 2130.139921][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2130.139921][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2130.139921][   T10]      ip6_route_add+0x1c/0x140
[ 2130.139921][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2130.139921][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2130.139921][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2130.139921][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2130.139921][   T10]      netlink_rcv_skb+0x130/0x360
[ 2130.139921][   T10]      netlink_unicast+0x449/0x710
[ 2130.139921][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2130.139921][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2130.139921][   T10]      ___sys_sendmsg+0xee/0x170
[ 2130.139921][   T10]      __sys_sendmsg+0xcd/0x170
[ 2130.139921][   T10]      do_syscall_64+0xc6/0x1e0
[ 2130.139921][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2130.139921][   T10] 
[ 2130.141926][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2130.141926][   T10]      netdev_get_by_index+0x5e/0x80
[ 2130.141926][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2130.141926][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2130.141926][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2130.141926][   T10]      ipv6_add_addr+0x411/0x2000
[ 2130.141926][   T10]      inet6_addr_add+0x30e/0xa40
[ 2130.141926][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2130.141926][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2130.141926][   T10]      netlink_rcv_skb+0x130/0x360
[ 2130.141926][   T10]      netlink_unicast+0x449/0x710
[ 2130.141926][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2130.141926][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2130.141926][   T10]      ___sys_sendmsg+0xee/0x170
[ 2130.141926][   T10]      __sys_sendmsg+0xcd/0x170
[ 2130.141926][   T10]      do_syscall_64+0xc6/0x1e0
[ 2130.141926][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2130.141926][   T10] 
[ 2130.143935][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2130.143935][   T10]      netdev_get_by_index+0x5e/0x80
[ 2130.143935][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2130.143935][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2130.143935][   T10]      ip6_route_add+0x1c/0x140
[ 2130.143935][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2130.143935][   T10]      addrconf_add_dev+0xe2/0x170
[ 2130.143935][   T10]      inet6_addr_add+0x12f/0xa40
[ 2130.143935][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2130.143935][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2130.143935][   T10]      netlink_rcv_skb+0x130/0x360
[ 2130.143935][   T10]      netlink_unicast+0x449/0x710
[ 2130.143935][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2130.143935][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2130.143935][   T10]      ___sys_sendmsg+0xee/0x170
[ 2130.143935][   T10]      __sys_sendmsg+0xcd/0x170
[ 2130.143935][   T10]      do_syscall_64+0xc6/0x1e0
[ 2130.143935][   T10] 
[ 2130.145901][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2130.145901][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2130.145901][   T10]      ipv6_find_idev+0x102/0x170
[ 2130.145901][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2130.145901][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2130.145901][   T10]      netlink_rcv_skb+0x130/0x360
[ 2130.145901][   T10]      netlink_unicast+0x449/0x710
[ 2130.145901][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2130.145901][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2130.145901][   T10]      ___sys_sendmsg+0xee/0x170
[ 2130.145901][   T10]      __sys_sendmsg+0xcd/0x170
[ 2130.145901][   T10]      do_syscall_64+0xc6/0x1e0
[ 2130.145901][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2130.145901][   T10] 
[ 2130.147440][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2130.147440][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2130.147440][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2130.147440][   T10]      ipv6_find_idev+0x102/0x170
[ 2130.147440][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2130.147440][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2130.147440][   T10]      netlink_rcv_skb+0x130/0x360
[ 2130.147440][   T10]      netlink_unicast+0x449/0x710
[ 2130.147440][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2130.147440][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2130.147440][   T10]      ___sys_sendmsg+0xee/0x170
[ 2130.147440][   T10]      __sys_sendmsg+0xcd/0x170
[ 2130.147440][   T10]      do_syscall_64+0xc6/0x1e0
[ 2130.147440][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2130.147440][   T10] 
[ 2130.149134][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2130.149388][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2130.149388][   T10]      dst_init+0x84/0x4a0
[ 2130.149388][   T10]      dst_alloc+0x97/0x150
[ 2130.149388][   T10]      ip6_dst_alloc+0x23/0x90
[ 2130.149388][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2130.149388][   T10]      ip6_pol_route+0x56f/0x840
[ 2130.149388][   T10]      fib6_rule_lookup+0x456/0x630
[ 2130.149388][   T10]      ip6_route_input+0x59c/0xa50
[ 2130.149388][   T10]      ipv6_rcv+0x397/0x810
[ 2130.149388][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2130.149388][   T10]      process_backlog+0x101/0x620
[ 2130.149388][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2130.149388][   T10]      net_rx_action+0x495/0xbe0
[ 2130.149388][   T10]      __do_softirq+0x1b5/0x7f6
[ 2130.149388][   T10] 
[ 2130.151031][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2130.151031][   T10]      netdev_get_by_index+0x5e/0x80
[ 2130.151031][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2130.151031][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2130.151031][   T10]      ip6_route_add+0x1c/0x140
[ 2130.151031][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2130.151031][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2130.151031][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2130.151031][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2130.151031][   T10]      netlink_rcv_skb+0x130/0x360
[ 2130.151031][   T10]      netlink_unicast+0x449/0x710
[ 2130.151031][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2130.151031][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2130.151031][   T10]      ___sys_sendmsg+0xee/0x170
[ 2130.151031][   T10]      __sys_sendmsg+0xcd/0x170
[ 2130.151031][   T10]      do_syscall_64+0xc6/0x1e0
[ 2130.151031][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2130.151031][   T10] 
[ 2130.153040][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2130.153040][   T10]      netdev_get_by_index+0x5e/0x80
[ 2130.153040][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2130.153040][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2130.153040][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2130.153040][   T10]      ipv6_add_addr+0x411/0x2000
[ 2130.153040][   T10]      inet6_addr_add+0x30e/0xa40
[ 2130.153040][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2130.153040][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2130.153040][   T10]      netlink_rcv_skb+0x130/0x360
[ 2130.153040][   T10]      netlink_unicast+0x449/0x710
[ 2130.153040][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2130.153040][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2130.153040][   T10]      ___sys_sendmsg+0xee/0x170
[ 2130.153040][   T10]      __sys_sendmsg+0xcd/0x170
[ 2130.153040][   T10]      do_syscall_64+0xc6/0x1e0
[ 2130.153040][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2130.153040][   T10] 
[ 2130.155040][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2130.155040][   T10]      netdev_get_by_index+0x5e/0x80
[ 2130.155040][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2130.155040][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2130.155040][   T10]      ip6_route_add+0x1c/0x140
[ 2130.155040][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2130.155040][   T10]      addrconf_add_dev+0xe2/0x170
[ 2130.155040][   T10]      inet6_addr_add+0x12f/0xa40
[ 2130.155040][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2130.155040][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2130.155040][   T10]      netlink_rcv_skb+0x130/0x360
[ 2130.155040][   T10]      netlink_unicast+0x449/0x710
[ 2130.155040][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2130.155040][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2130.155040][   T10]      ___sys_sendmsg+0xee/0x170
[ 2130.155040][   T10]      __sys_sendmsg+0xcd/0x170
[ 2130.155040][   T10]      do_syscall_64+0xc6/0x1e0
[ 2130.155040][   T10] 
[ 2130.157012][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2130.157012][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2130.157012][   T10]      ipv6_find_idev+0x102/0x170
[ 2130.157012][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2130.157012][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2130.157012][   T10]      netlink_rcv_skb+0x130/0x360
[ 2130.157012][   T10]      netlink_unicast+0x449/0x710
[ 2130.157012][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2130.157012][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2130.157012][   T10]      ___sys_sendmsg+0xee/0x170
[ 2130.157012][   T10]      __sys_sendmsg+0xcd/0x170
[ 2130.157012][   T10]      do_syscall_64+0xc6/0x1e0
[ 2130.157012][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2130.157012][   T10] 
[ 2130.158550][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2130.158550][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2130.158550][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2130.158550][   T10]      ipv6_find_idev+0x102/0x170
[ 2130.158550][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2130.158550][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2130.158550][   T10]      netlink_rcv_skb+0x130/0x360
[ 2130.158550][   T10]      netlink_unicast+0x449/0x710
[ 2130.158550][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2130.158550][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2130.158550][   T10]      ___sys_sendmsg+0xee/0x170
[ 2130.158550][   T10]      __sys_sendmsg+0xcd/0x170
[ 2130.158550][   T10]      do_syscall_64+0xc6/0x1e0
[ 2130.158550][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2130.158550][   T10] 
[ 2140.401784][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2140.402242][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2140.402242][   T10]      dst_init+0x84/0x4a0
[ 2140.402242][   T10]      dst_alloc+0x97/0x150
[ 2140.402242][   T10]      ip6_dst_alloc+0x23/0x90
[ 2140.402242][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2140.402242][   T10]      ip6_pol_route+0x56f/0x840
[ 2140.402242][   T10]      fib6_rule_lookup+0x456/0x630
[ 2140.402242][   T10]      ip6_route_input+0x59c/0xa50
[ 2140.402242][   T10]      ipv6_rcv+0x397/0x810
[ 2140.402242][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2140.402242][   T10]      process_backlog+0x101/0x620
[ 2140.402242][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2140.402242][   T10]      net_rx_action+0x495/0xbe0
[ 2140.402242][   T10]      __do_softirq+0x1b5/0x7f6
[ 2140.402242][   T10] 
[ 2140.403935][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2140.403935][   T10]      netdev_get_by_index+0x5e/0x80
[ 2140.403935][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2140.403935][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2140.403935][   T10]      ip6_route_add+0x1c/0x140
[ 2140.403935][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2140.403935][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2140.403935][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2140.403935][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2140.403935][   T10]      netlink_rcv_skb+0x130/0x360
[ 2140.403935][   T10]      netlink_unicast+0x449/0x710
[ 2140.403935][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2140.403935][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2140.403935][   T10]      ___sys_sendmsg+0xee/0x170
[ 2140.403935][   T10]      __sys_sendmsg+0xcd/0x170
[ 2140.403935][   T10]      do_syscall_64+0xc6/0x1e0
[ 2140.403935][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2140.403935][   T10] 
[ 2140.406035][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2140.406035][   T10]      netdev_get_by_index+0x5e/0x80
[ 2140.406035][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2140.406035][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2140.406035][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2140.406035][   T10]      ipv6_add_addr+0x411/0x2000
[ 2140.406035][   T10]      inet6_addr_add+0x30e/0xa40
[ 2140.406035][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2140.406035][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2140.406035][   T10]      netlink_rcv_skb+0x130/0x360
[ 2140.406035][   T10]      netlink_unicast+0x449/0x710
[ 2140.406035][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2140.406035][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2140.406035][   T10]      ___sys_sendmsg+0xee/0x170
[ 2140.406035][   T10]      __sys_sendmsg+0xcd/0x170
[ 2140.406035][   T10]      do_syscall_64+0xc6/0x1e0
[ 2140.406035][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2140.406035][   T10] 
[ 2140.408100][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2140.408100][   T10]      netdev_get_by_index+0x5e/0x80
[ 2140.408100][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2140.408100][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2140.408100][   T10]      ip6_route_add+0x1c/0x140
[ 2140.408100][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2140.408100][   T10]      addrconf_add_dev+0xe2/0x170
[ 2140.408100][   T10]      inet6_addr_add+0x12f/0xa40
[ 2140.408100][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2140.408100][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2140.408100][   T10]      netlink_rcv_skb+0x130/0x360
[ 2140.408100][   T10]      netlink_unicast+0x449/0x710
[ 2140.408100][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2140.408100][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2140.408100][   T10]      ___sys_sendmsg+0xee/0x170
[ 2140.408100][   T10]      __sys_sendmsg+0xcd/0x170
[ 2140.408100][   T10]      do_syscall_64+0xc6/0x1e0
[ 2140.408100][   T10] 
[ 2140.410114][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2140.410114][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2140.410114][   T10]      ipv6_find_idev+0x102/0x170
[ 2140.410114][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2140.410114][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2140.410114][   T10]      netlink_rcv_skb+0x130/0x360
[ 2140.410114][   T10]      netlink_unicast+0x449/0x710
[ 2140.410114][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2140.410114][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2140.410114][   T10]      ___sys_sendmsg+0xee/0x170
[ 2140.410114][   T10]      __sys_sendmsg+0xcd/0x170
[ 2140.410114][   T10]      do_syscall_64+0xc6/0x1e0
[ 2140.410114][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2140.410114][   T10] 
[ 2140.411698][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2140.411698][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2140.411698][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2140.411698][   T10]      ipv6_find_idev+0x102/0x170
[ 2140.411698][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2140.411698][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2140.411698][   T10]      netlink_rcv_skb+0x130/0x360
[ 2140.411698][   T10]      netlink_unicast+0x449/0x710
[ 2140.411698][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2140.411698][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2140.411698][   T10]      ___sys_sendmsg+0xee/0x170
[ 2140.411698][   T10]      __sys_sendmsg+0xcd/0x170
[ 2140.411698][   T10]      do_syscall_64+0xc6/0x1e0
[ 2140.411698][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2140.411698][   T10] 
[ 2140.413440][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2140.413690][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2140.413690][   T10]      dst_init+0x84/0x4a0
[ 2140.413690][   T10]      dst_alloc+0x97/0x150
[ 2140.413690][   T10]      ip6_dst_alloc+0x23/0x90
[ 2140.413690][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2140.413690][   T10]      ip6_pol_route+0x56f/0x840
[ 2140.413690][   T10]      fib6_rule_lookup+0x456/0x630
[ 2140.413690][   T10]      ip6_route_input+0x59c/0xa50
[ 2140.413690][   T10]      ipv6_rcv+0x397/0x810
[ 2140.413690][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2140.413690][   T10]      process_backlog+0x101/0x620
[ 2140.413690][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2140.413690][   T10]      net_rx_action+0x495/0xbe0
[ 2140.413690][   T10]      __do_softirq+0x1b5/0x7f6
[ 2140.413690][   T10] 
[ 2140.415368][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2140.415368][   T10]      netdev_get_by_index+0x5e/0x80
[ 2140.415368][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2140.415368][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2140.415368][   T10]      ip6_route_add+0x1c/0x140
[ 2140.415368][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2140.415368][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2140.415368][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2140.415368][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2140.415368][   T10]      netlink_rcv_skb+0x130/0x360
[ 2140.415368][   T10]      netlink_unicast+0x449/0x710
[ 2140.415368][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2140.415368][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2140.415368][   T10]      ___sys_sendmsg+0xee/0x170
[ 2140.415368][   T10]      __sys_sendmsg+0xcd/0x170
[ 2140.415368][   T10]      do_syscall_64+0xc6/0x1e0
[ 2140.415368][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2140.415368][   T10] 
[ 2140.417426][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2140.417426][   T10]      netdev_get_by_index+0x5e/0x80
[ 2140.417426][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2140.417426][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2140.417426][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2140.417426][   T10]      ipv6_add_addr+0x411/0x2000
[ 2140.417426][   T10]      inet6_addr_add+0x30e/0xa40
[ 2140.417426][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2140.417426][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2140.417426][   T10]      netlink_rcv_skb+0x130/0x360
[ 2140.417426][   T10]      netlink_unicast+0x449/0x710
[ 2140.417426][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2140.417426][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2140.417426][   T10]      ___sys_sendmsg+0xee/0x170
[ 2140.417426][   T10]      __sys_sendmsg+0xcd/0x170
[ 2140.417426][   T10]      do_syscall_64+0xc6/0x1e0
[ 2140.417426][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2140.417426][   T10] 
[ 2140.419476][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2140.419476][   T10]      netdev_get_by_index+0x5e/0x80
[ 2140.419476][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2140.419476][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2140.419476][   T10]      ip6_route_add+0x1c/0x140
[ 2140.419476][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2140.419476][   T10]      addrconf_add_dev+0xe2/0x170
[ 2140.419476][   T10]      inet6_addr_add+0x12f/0xa40
[ 2140.419476][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2140.419476][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2140.419476][   T10]      netlink_rcv_skb+0x130/0x360
[ 2140.419476][   T10]      netlink_unicast+0x449/0x710
[ 2140.419476][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2140.419476][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2140.419476][   T10]      ___sys_sendmsg+0xee/0x170
[ 2140.419476][   T10]      __sys_sendmsg+0xcd/0x170
[ 2140.419476][   T10]      do_syscall_64+0xc6/0x1e0
[ 2140.419476][   T10] 
[ 2140.421485][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2140.421485][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2140.421485][   T10]      ipv6_find_idev+0x102/0x170
[ 2140.421485][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2140.421485][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2140.421485][   T10]      netlink_rcv_skb+0x130/0x360
[ 2140.421485][   T10]      netlink_unicast+0x449/0x710
[ 2140.421485][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2140.421485][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2140.421485][   T10]      ___sys_sendmsg+0xee/0x170
[ 2140.421485][   T10]      __sys_sendmsg+0xcd/0x170
[ 2140.421485][   T10]      do_syscall_64+0xc6/0x1e0
[ 2140.421485][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2140.421485][   T10] 
[ 2140.423082][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2140.423082][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2140.423082][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2140.423082][   T10]      ipv6_find_idev+0x102/0x170
[ 2140.423082][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2140.423082][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2140.423082][   T10]      netlink_rcv_skb+0x130/0x360
[ 2140.423082][   T10]      netlink_unicast+0x449/0x710
[ 2140.423082][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2140.423082][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2140.423082][   T10]      ___sys_sendmsg+0xee/0x170
[ 2140.423082][   T10]      __sys_sendmsg+0xcd/0x170
[ 2140.423082][   T10]      do_syscall_64+0xc6/0x1e0
[ 2140.423082][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2140.423082][   T10] 
[ 2150.593785][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2150.594262][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2150.594262][   T10]      dst_init+0x84/0x4a0
[ 2150.594262][   T10]      dst_alloc+0x97/0x150
[ 2150.594262][   T10]      ip6_dst_alloc+0x23/0x90
[ 2150.594262][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2150.594262][   T10]      ip6_pol_route+0x56f/0x840
[ 2150.594262][   T10]      fib6_rule_lookup+0x456/0x630
[ 2150.594262][   T10]      ip6_route_input+0x59c/0xa50
[ 2150.594262][   T10]      ipv6_rcv+0x397/0x810
[ 2150.594262][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2150.594262][   T10]      process_backlog+0x101/0x620
[ 2150.594262][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2150.594262][   T10]      net_rx_action+0x495/0xbe0
[ 2150.594262][   T10]      __do_softirq+0x1b5/0x7f6
[ 2150.594262][   T10] 
[ 2150.595979][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2150.595979][   T10]      netdev_get_by_index+0x5e/0x80
[ 2150.595979][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2150.595979][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2150.595979][   T10]      ip6_route_add+0x1c/0x140
[ 2150.595979][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2150.595979][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2150.595979][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2150.595979][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2150.595979][   T10]      netlink_rcv_skb+0x130/0x360
[ 2150.595979][   T10]      netlink_unicast+0x449/0x710
[ 2150.595979][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2150.595979][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2150.595979][   T10]      ___sys_sendmsg+0xee/0x170
[ 2150.595979][   T10]      __sys_sendmsg+0xcd/0x170
[ 2150.595979][   T10]      do_syscall_64+0xc6/0x1e0
[ 2150.595979][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2150.595979][   T10] 
[ 2150.598043][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2150.598043][   T10]      netdev_get_by_index+0x5e/0x80
[ 2150.598043][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2150.598043][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2150.598043][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2150.598043][   T10]      ipv6_add_addr+0x411/0x2000
[ 2150.598043][   T10]      inet6_addr_add+0x30e/0xa40
[ 2150.598043][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2150.598043][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2150.598043][   T10]      netlink_rcv_skb+0x130/0x360
[ 2150.598043][   T10]      netlink_unicast+0x449/0x710
[ 2150.598043][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2150.598043][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2150.598043][   T10]      ___sys_sendmsg+0xee/0x170
[ 2150.598043][   T10]      __sys_sendmsg+0xcd/0x170
[ 2150.598043][   T10]      do_syscall_64+0xc6/0x1e0
[ 2150.598043][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2150.598043][   T10] 
[ 2150.600103][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2150.600103][   T10]      netdev_get_by_index+0x5e/0x80
[ 2150.600103][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2150.600103][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2150.600103][   T10]      ip6_route_add+0x1c/0x140
[ 2150.600103][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2150.600103][   T10]      addrconf_add_dev+0xe2/0x170
[ 2150.600103][   T10]      inet6_addr_add+0x12f/0xa40
[ 2150.600103][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2150.600103][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2150.600103][   T10]      netlink_rcv_skb+0x130/0x360
[ 2150.600103][   T10]      netlink_unicast+0x449/0x710
[ 2150.600103][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2150.600103][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2150.600103][   T10]      ___sys_sendmsg+0xee/0x170
[ 2150.600103][   T10]      __sys_sendmsg+0xcd/0x170
[ 2150.600103][   T10]      do_syscall_64+0xc6/0x1e0
[ 2150.600103][   T10] 
[ 2150.602114][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2150.602114][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2150.602114][   T10]      ipv6_find_idev+0x102/0x170
[ 2150.602114][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2150.602114][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2150.602114][   T10]      netlink_rcv_skb+0x130/0x360
[ 2150.602114][   T10]      netlink_unicast+0x449/0x710
[ 2150.602114][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2150.602114][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2150.602114][   T10]      ___sys_sendmsg+0xee/0x170
[ 2150.602114][   T10]      __sys_sendmsg+0xcd/0x170
[ 2150.602114][   T10]      do_syscall_64+0xc6/0x1e0
[ 2150.602114][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2150.602114][   T10] 
[ 2150.603723][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2150.603723][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2150.603723][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2150.603723][   T10]      ipv6_find_idev+0x102/0x170
[ 2150.603723][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2150.603723][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2150.603723][   T10]      netlink_rcv_skb+0x130/0x360
[ 2150.603723][   T10]      netlink_unicast+0x449/0x710
[ 2150.603723][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2150.603723][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2150.603723][   T10]      ___sys_sendmsg+0xee/0x170
[ 2150.603723][   T10]      __sys_sendmsg+0xcd/0x170
[ 2150.603723][   T10]      do_syscall_64+0xc6/0x1e0
[ 2150.603723][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2150.603723][   T10] 
[ 2150.605459][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2150.605716][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2150.605716][   T10]      dst_init+0x84/0x4a0
[ 2150.605716][   T10]      dst_alloc+0x97/0x150
[ 2150.605716][   T10]      ip6_dst_alloc+0x23/0x90
[ 2150.605716][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2150.605716][   T10]      ip6_pol_route+0x56f/0x840
[ 2150.605716][   T10]      fib6_rule_lookup+0x456/0x630
[ 2150.605716][   T10]      ip6_route_input+0x59c/0xa50
[ 2150.605716][   T10]      ipv6_rcv+0x397/0x810
[ 2150.605716][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2150.605716][   T10]      process_backlog+0x101/0x620
[ 2150.605716][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2150.605716][   T10]      net_rx_action+0x495/0xbe0
[ 2150.605716][   T10]      __do_softirq+0x1b5/0x7f6
[ 2150.605716][   T10] 
[ 2150.607425][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2150.607425][   T10]      netdev_get_by_index+0x5e/0x80
[ 2150.607425][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2150.607425][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2150.607425][   T10]      ip6_route_add+0x1c/0x140
[ 2150.607425][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2150.607425][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2150.607425][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2150.607425][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2150.607425][   T10]      netlink_rcv_skb+0x130/0x360
[ 2150.607425][   T10]      netlink_unicast+0x449/0x710
[ 2150.607425][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2150.607425][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2150.607425][   T10]      ___sys_sendmsg+0xee/0x170
[ 2150.607425][   T10]      __sys_sendmsg+0xcd/0x170
[ 2150.607425][   T10]      do_syscall_64+0xc6/0x1e0
[ 2150.607425][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2150.607425][   T10] 
[ 2150.609483][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2150.609483][   T10]      netdev_get_by_index+0x5e/0x80
[ 2150.609483][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2150.609483][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2150.609483][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2150.609483][   T10]      ipv6_add_addr+0x411/0x2000
[ 2150.609483][   T10]      inet6_addr_add+0x30e/0xa40
[ 2150.609483][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2150.609483][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2150.609483][   T10]      netlink_rcv_skb+0x130/0x360
[ 2150.609483][   T10]      netlink_unicast+0x449/0x710
[ 2150.609483][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2150.609483][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2150.609483][   T10]      ___sys_sendmsg+0xee/0x170
[ 2150.609483][   T10]      __sys_sendmsg+0xcd/0x170
[ 2150.609483][   T10]      do_syscall_64+0xc6/0x1e0
[ 2150.609483][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2150.609483][   T10] 
[ 2150.611534][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2150.611534][   T10]      netdev_get_by_index+0x5e/0x80
[ 2150.611534][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2150.611534][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2150.611534][   T10]      ip6_route_add+0x1c/0x140
[ 2150.611534][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2150.611534][   T10]      addrconf_add_dev+0xe2/0x170
[ 2150.611534][   T10]      inet6_addr_add+0x12f/0xa40
[ 2150.611534][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2150.611534][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2150.611534][   T10]      netlink_rcv_skb+0x130/0x360
[ 2150.611534][   T10]      netlink_unicast+0x449/0x710
[ 2150.611534][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2150.611534][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2150.611534][   T10]      ___sys_sendmsg+0xee/0x170
[ 2150.611534][   T10]      __sys_sendmsg+0xcd/0x170
[ 2150.611534][   T10]      do_syscall_64+0xc6/0x1e0
[ 2150.611534][   T10] 
[ 2150.613551][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2150.613551][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2150.613551][   T10]      ipv6_find_idev+0x102/0x170
[ 2150.613551][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2150.613551][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2150.613551][   T10]      netlink_rcv_skb+0x130/0x360
[ 2150.613551][   T10]      netlink_unicast+0x449/0x710
[ 2150.613551][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2150.613551][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2150.613551][   T10]      ___sys_sendmsg+0xee/0x170
[ 2150.613551][   T10]      __sys_sendmsg+0xcd/0x170
[ 2150.613551][   T10]      do_syscall_64+0xc6/0x1e0
[ 2150.613551][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2150.613551][   T10] 
[ 2150.615132][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2150.615132][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2150.615132][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2150.615132][   T10]      ipv6_find_idev+0x102/0x170
[ 2150.615132][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2150.615132][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2150.615132][   T10]      netlink_rcv_skb+0x130/0x360
[ 2150.615132][   T10]      netlink_unicast+0x449/0x710
[ 2150.615132][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2150.615132][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2150.615132][   T10]      ___sys_sendmsg+0xee/0x170
[ 2150.615132][   T10]      __sys_sendmsg+0xcd/0x170
[ 2150.615132][   T10]      do_syscall_64+0xc6/0x1e0
[ 2150.615132][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2150.615132][   T10] 
[ 2160.865793][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2160.866249][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2160.866249][   T10]      dst_init+0x84/0x4a0
[ 2160.866249][   T10]      dst_alloc+0x97/0x150
[ 2160.866249][   T10]      ip6_dst_alloc+0x23/0x90
[ 2160.866249][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2160.866249][   T10]      ip6_pol_route+0x56f/0x840
[ 2160.866249][   T10]      fib6_rule_lookup+0x456/0x630
[ 2160.866249][   T10]      ip6_route_input+0x59c/0xa50
[ 2160.866249][   T10]      ipv6_rcv+0x397/0x810
[ 2160.866249][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2160.866249][   T10]      process_backlog+0x101/0x620
[ 2160.866249][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2160.866249][   T10]      net_rx_action+0x495/0xbe0
[ 2160.866249][   T10]      __do_softirq+0x1b5/0x7f6
[ 2160.866249][   T10] 
[ 2160.867976][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2160.867976][   T10]      netdev_get_by_index+0x5e/0x80
[ 2160.867976][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2160.867976][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2160.867976][   T10]      ip6_route_add+0x1c/0x140
[ 2160.867976][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2160.867976][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2160.867976][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2160.867976][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2160.867976][   T10]      netlink_rcv_skb+0x130/0x360
[ 2160.867976][   T10]      netlink_unicast+0x449/0x710
[ 2160.867976][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2160.867976][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2160.867976][   T10]      ___sys_sendmsg+0xee/0x170
[ 2160.867976][   T10]      __sys_sendmsg+0xcd/0x170
[ 2160.867976][   T10]      do_syscall_64+0xc6/0x1e0
[ 2160.867976][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2160.867976][   T10] 
[ 2160.870037][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2160.870037][   T10]      netdev_get_by_index+0x5e/0x80
[ 2160.870037][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2160.870037][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2160.870037][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2160.870037][   T10]      ipv6_add_addr+0x411/0x2000
[ 2160.870037][   T10]      inet6_addr_add+0x30e/0xa40
[ 2160.870037][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2160.870037][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2160.870037][   T10]      netlink_rcv_skb+0x130/0x360
[ 2160.870037][   T10]      netlink_unicast+0x449/0x710
[ 2160.870037][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2160.870037][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2160.870037][   T10]      ___sys_sendmsg+0xee/0x170
[ 2160.870037][   T10]      __sys_sendmsg+0xcd/0x170
[ 2160.870037][   T10]      do_syscall_64+0xc6/0x1e0
[ 2160.870037][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2160.870037][   T10] 
[ 2160.872106][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2160.872106][   T10]      netdev_get_by_index+0x5e/0x80
[ 2160.872106][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2160.872106][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2160.872106][   T10]      ip6_route_add+0x1c/0x140
[ 2160.872106][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2160.872106][   T10]      addrconf_add_dev+0xe2/0x170
[ 2160.872106][   T10]      inet6_addr_add+0x12f/0xa40
[ 2160.872106][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2160.872106][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2160.872106][   T10]      netlink_rcv_skb+0x130/0x360
[ 2160.872106][   T10]      netlink_unicast+0x449/0x710
[ 2160.872106][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2160.872106][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2160.872106][   T10]      ___sys_sendmsg+0xee/0x170
[ 2160.872106][   T10]      __sys_sendmsg+0xcd/0x170
[ 2160.872106][   T10]      do_syscall_64+0xc6/0x1e0
[ 2160.872106][   T10] 
[ 2160.874119][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2160.874119][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2160.874119][   T10]      ipv6_find_idev+0x102/0x170
[ 2160.874119][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2160.874119][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2160.874119][   T10]      netlink_rcv_skb+0x130/0x360
[ 2160.874119][   T10]      netlink_unicast+0x449/0x710
[ 2160.874119][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2160.874119][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2160.874119][   T10]      ___sys_sendmsg+0xee/0x170
[ 2160.874119][   T10]      __sys_sendmsg+0xcd/0x170
[ 2160.874119][   T10]      do_syscall_64+0xc6/0x1e0
[ 2160.874119][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2160.874119][   T10] 
[ 2160.875702][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2160.875702][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2160.875702][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2160.875702][   T10]      ipv6_find_idev+0x102/0x170
[ 2160.875702][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2160.875702][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2160.875702][   T10]      netlink_rcv_skb+0x130/0x360
[ 2160.875702][   T10]      netlink_unicast+0x449/0x710
[ 2160.875702][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2160.875702][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2160.875702][   T10]      ___sys_sendmsg+0xee/0x170
[ 2160.875702][   T10]      __sys_sendmsg+0xcd/0x170
[ 2160.875702][   T10]      do_syscall_64+0xc6/0x1e0
[ 2160.875702][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2160.875702][   T10] 
[ 2160.877435][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2160.877698][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2160.877698][   T10]      dst_init+0x84/0x4a0
[ 2160.877698][   T10]      dst_alloc+0x97/0x150
[ 2160.877698][   T10]      ip6_dst_alloc+0x23/0x90
[ 2160.877698][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2160.877698][   T10]      ip6_pol_route+0x56f/0x840
[ 2160.877698][   T10]      fib6_rule_lookup+0x456/0x630
[ 2160.877698][   T10]      ip6_route_input+0x59c/0xa50
[ 2160.877698][   T10]      ipv6_rcv+0x397/0x810
[ 2160.877698][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2160.877698][   T10]      process_backlog+0x101/0x620
[ 2160.877698][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2160.877698][   T10]      net_rx_action+0x495/0xbe0
[ 2160.877698][   T10]      __do_softirq+0x1b5/0x7f6
[ 2160.877698][   T10] 
[ 2160.879925][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2160.879925][   T10]      netdev_get_by_index+0x5e/0x80
[ 2160.879925][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2160.879925][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2160.879925][   T10]      ip6_route_add+0x1c/0x140
[ 2160.879925][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2160.879925][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2160.879925][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2160.879925][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2160.879925][   T10]      netlink_rcv_skb+0x130/0x360
[ 2160.879925][   T10]      netlink_unicast+0x449/0x710
[ 2160.879925][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2160.879925][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2160.879925][   T10]      ___sys_sendmsg+0xee/0x170
[ 2160.879925][   T10]      __sys_sendmsg+0xcd/0x170
[ 2160.879925][   T10]      do_syscall_64+0xc6/0x1e0
[ 2160.879925][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2160.879925][   T10] 
[ 2160.881975][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2160.881975][   T10]      netdev_get_by_index+0x5e/0x80
[ 2160.881975][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2160.881975][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2160.881975][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2160.881975][   T10]      ipv6_add_addr+0x411/0x2000
[ 2160.881975][   T10]      inet6_addr_add+0x30e/0xa40
[ 2160.881975][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2160.881975][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2160.881975][   T10]      netlink_rcv_skb+0x130/0x360
[ 2160.881975][   T10]      netlink_unicast+0x449/0x710
[ 2160.881975][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2160.881975][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2160.881975][   T10]      ___sys_sendmsg+0xee/0x170
[ 2160.881975][   T10]      __sys_sendmsg+0xcd/0x170
[ 2160.881975][   T10]      do_syscall_64+0xc6/0x1e0
[ 2160.881975][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2160.881975][   T10] 
[ 2160.884027][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2160.884027][   T10]      netdev_get_by_index+0x5e/0x80
[ 2160.884027][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2160.884027][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2160.884027][   T10]      ip6_route_add+0x1c/0x140
[ 2160.884027][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2160.884027][   T10]      addrconf_add_dev+0xe2/0x170
[ 2160.884027][   T10]      inet6_addr_add+0x12f/0xa40
[ 2160.884027][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2160.884027][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2160.884027][   T10]      netlink_rcv_skb+0x130/0x360
[ 2160.884027][   T10]      netlink_unicast+0x449/0x710
[ 2160.884027][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2160.884027][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2160.884027][   T10]      ___sys_sendmsg+0xee/0x170
[ 2160.884027][   T10]      __sys_sendmsg+0xcd/0x170
[ 2160.884027][   T10]      do_syscall_64+0xc6/0x1e0
[ 2160.884027][   T10] 
[ 2160.886039][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2160.886039][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2160.886039][   T10]      ipv6_find_idev+0x102/0x170
[ 2160.886039][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2160.886039][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2160.886039][   T10]      netlink_rcv_skb+0x130/0x360
[ 2160.886039][   T10]      netlink_unicast+0x449/0x710
[ 2160.886039][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2160.886039][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2160.886039][   T10]      ___sys_sendmsg+0xee/0x170
[ 2160.886039][   T10]      __sys_sendmsg+0xcd/0x170
[ 2160.886039][   T10]      do_syscall_64+0xc6/0x1e0
[ 2160.886039][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2160.886039][   T10] 
[ 2160.887616][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2160.887616][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2160.887616][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2160.887616][   T10]      ipv6_find_idev+0x102/0x170
[ 2160.887616][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2160.887616][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2160.887616][   T10]      netlink_rcv_skb+0x130/0x360
[ 2160.887616][   T10]      netlink_unicast+0x449/0x710
[ 2160.887616][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2160.887616][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2160.887616][   T10]      ___sys_sendmsg+0xee/0x170
[ 2160.887616][   T10]      __sys_sendmsg+0xcd/0x170
[ 2160.887616][   T10]      do_syscall_64+0xc6/0x1e0
[ 2160.887616][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2160.887616][   T10] 
[ 2171.129803][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2171.130272][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2171.130272][   T10]      dst_init+0x84/0x4a0
[ 2171.130272][   T10]      dst_alloc+0x97/0x150
[ 2171.130272][   T10]      ip6_dst_alloc+0x23/0x90
[ 2171.130272][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2171.130272][   T10]      ip6_pol_route+0x56f/0x840
[ 2171.130272][   T10]      fib6_rule_lookup+0x456/0x630
[ 2171.130272][   T10]      ip6_route_input+0x59c/0xa50
[ 2171.130272][   T10]      ipv6_rcv+0x397/0x810
[ 2171.130272][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2171.130272][   T10]      process_backlog+0x101/0x620
[ 2171.130272][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2171.130272][   T10]      net_rx_action+0x495/0xbe0
[ 2171.130272][   T10]      __do_softirq+0x1b5/0x7f6
[ 2171.130272][   T10] 
[ 2171.132381][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2171.132381][   T10]      netdev_get_by_index+0x5e/0x80
[ 2171.132381][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2171.132381][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2171.132381][   T10]      ip6_route_add+0x1c/0x140
[ 2171.132381][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2171.132381][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2171.132381][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2171.132381][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2171.132381][   T10]      netlink_rcv_skb+0x130/0x360
[ 2171.132381][   T10]      netlink_unicast+0x449/0x710
[ 2171.132381][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2171.132381][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2171.132381][   T10]      ___sys_sendmsg+0xee/0x170
[ 2171.132381][   T10]      __sys_sendmsg+0xcd/0x170
[ 2171.132381][   T10]      do_syscall_64+0xc6/0x1e0
[ 2171.132381][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2171.132381][   T10] 
[ 2171.134442][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2171.134442][   T10]      netdev_get_by_index+0x5e/0x80
[ 2171.134442][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2171.134442][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2171.134442][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2171.134442][   T10]      ipv6_add_addr+0x411/0x2000
[ 2171.134442][   T10]      inet6_addr_add+0x30e/0xa40
[ 2171.134442][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2171.134442][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2171.134442][   T10]      netlink_rcv_skb+0x130/0x360
[ 2171.134442][   T10]      netlink_unicast+0x449/0x710
[ 2171.134442][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2171.134442][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2171.134442][   T10]      ___sys_sendmsg+0xee/0x170
[ 2171.134442][   T10]      __sys_sendmsg+0xcd/0x170
[ 2171.134442][   T10]      do_syscall_64+0xc6/0x1e0
[ 2171.134442][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2171.134442][   T10] 
[ 2171.136484][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2171.136484][   T10]      netdev_get_by_index+0x5e/0x80
[ 2171.136484][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2171.136484][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2171.136484][   T10]      ip6_route_add+0x1c/0x140
[ 2171.136484][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2171.136484][   T10]      addrconf_add_dev+0xe2/0x170
[ 2171.136484][   T10]      inet6_addr_add+0x12f/0xa40
[ 2171.136484][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2171.136484][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2171.136484][   T10]      netlink_rcv_skb+0x130/0x360
[ 2171.136484][   T10]      netlink_unicast+0x449/0x710
[ 2171.136484][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2171.136484][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2171.136484][   T10]      ___sys_sendmsg+0xee/0x170
[ 2171.136484][   T10]      __sys_sendmsg+0xcd/0x170
[ 2171.136484][   T10]      do_syscall_64+0xc6/0x1e0
[ 2171.136484][   T10] 
[ 2171.138583][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2171.138583][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2171.138583][   T10]      ipv6_find_idev+0x102/0x170
[ 2171.138583][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2171.138583][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2171.138583][   T10]      netlink_rcv_skb+0x130/0x360
[ 2171.138583][   T10]      netlink_unicast+0x449/0x710
[ 2171.138583][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2171.138583][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2171.138583][   T10]      ___sys_sendmsg+0xee/0x170
[ 2171.138583][   T10]      __sys_sendmsg+0xcd/0x170
[ 2171.138583][   T10]      do_syscall_64+0xc6/0x1e0
[ 2171.138583][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2171.138583][   T10] 
[ 2171.140125][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2171.140125][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2171.140125][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2171.140125][   T10]      ipv6_find_idev+0x102/0x170
[ 2171.140125][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2171.140125][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2171.140125][   T10]      netlink_rcv_skb+0x130/0x360
[ 2171.140125][   T10]      netlink_unicast+0x449/0x710
[ 2171.140125][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2171.140125][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2171.140125][   T10]      ___sys_sendmsg+0xee/0x170
[ 2171.140125][   T10]      __sys_sendmsg+0xcd/0x170
[ 2171.140125][   T10]      do_syscall_64+0xc6/0x1e0
[ 2171.140125][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2171.140125][   T10] 
[ 2171.141852][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2171.142104][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2171.142104][   T10]      dst_init+0x84/0x4a0
[ 2171.142104][   T10]      dst_alloc+0x97/0x150
[ 2171.142104][   T10]      ip6_dst_alloc+0x23/0x90
[ 2171.142104][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2171.142104][   T10]      ip6_pol_route+0x56f/0x840
[ 2171.142104][   T10]      fib6_rule_lookup+0x456/0x630
[ 2171.142104][   T10]      ip6_route_input+0x59c/0xa50
[ 2171.142104][   T10]      ipv6_rcv+0x397/0x810
[ 2171.142104][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2171.142104][   T10]      process_backlog+0x101/0x620
[ 2171.142104][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2171.142104][   T10]      net_rx_action+0x495/0xbe0
[ 2171.142104][   T10]      __do_softirq+0x1b5/0x7f6
[ 2171.142104][   T10] 
[ 2171.143791][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2171.143791][   T10]      netdev_get_by_index+0x5e/0x80
[ 2171.143791][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2171.143791][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2171.143791][   T10]      ip6_route_add+0x1c/0x140
[ 2171.143791][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2171.143791][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2171.143791][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2171.143791][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2171.143791][   T10]      netlink_rcv_skb+0x130/0x360
[ 2171.143791][   T10]      netlink_unicast+0x449/0x710
[ 2171.143791][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2171.143791][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2171.143791][   T10]      ___sys_sendmsg+0xee/0x170
[ 2171.143791][   T10]      __sys_sendmsg+0xcd/0x170
[ 2171.143791][   T10]      do_syscall_64+0xc6/0x1e0
[ 2171.143791][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2171.143791][   T10] 
[ 2171.145842][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2171.145842][   T10]      netdev_get_by_index+0x5e/0x80
[ 2171.145842][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2171.145842][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2171.145842][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2171.145842][   T10]      ipv6_add_addr+0x411/0x2000
[ 2171.145842][   T10]      inet6_addr_add+0x30e/0xa40
[ 2171.145842][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2171.145842][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2171.145842][   T10]      netlink_rcv_skb+0x130/0x360
[ 2171.145842][   T10]      netlink_unicast+0x449/0x710
[ 2171.145842][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2171.145842][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2171.145842][   T10]      ___sys_sendmsg+0xee/0x170
[ 2171.145842][   T10]      __sys_sendmsg+0xcd/0x170
[ 2171.145842][   T10]      do_syscall_64+0xc6/0x1e0
[ 2171.145842][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2171.145842][   T10] 
[ 2171.147894][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2171.147894][   T10]      netdev_get_by_index+0x5e/0x80
[ 2171.147894][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2171.147894][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2171.147894][   T10]      ip6_route_add+0x1c/0x140
[ 2171.147894][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2171.147894][   T10]      addrconf_add_dev+0xe2/0x170
[ 2171.147894][   T10]      inet6_addr_add+0x12f/0xa40
[ 2171.147894][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2171.147894][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2171.147894][   T10]      netlink_rcv_skb+0x130/0x360
[ 2171.147894][   T10]      netlink_unicast+0x449/0x710
[ 2171.147894][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2171.147894][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2171.147894][   T10]      ___sys_sendmsg+0xee/0x170
[ 2171.147894][   T10]      __sys_sendmsg+0xcd/0x170
[ 2171.147894][   T10]      do_syscall_64+0xc6/0x1e0
[ 2171.147894][   T10] 
[ 2171.149902][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2171.149902][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2171.149902][   T10]      ipv6_find_idev+0x102/0x170
[ 2171.149902][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2171.149902][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2171.149902][   T10]      netlink_rcv_skb+0x130/0x360
[ 2171.149902][   T10]      netlink_unicast+0x449/0x710
[ 2171.149902][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2171.149902][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2171.149902][   T10]      ___sys_sendmsg+0xee/0x170
[ 2171.149902][   T10]      __sys_sendmsg+0xcd/0x170
[ 2171.149902][   T10]      do_syscall_64+0xc6/0x1e0
[ 2171.149902][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2171.149902][   T10] 
[ 2171.151478][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2171.151478][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2171.151478][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2171.151478][   T10]      ipv6_find_idev+0x102/0x170
[ 2171.151478][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2171.151478][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2171.151478][   T10]      netlink_rcv_skb+0x130/0x360
[ 2171.151478][   T10]      netlink_unicast+0x449/0x710
[ 2171.151478][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2171.151478][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2171.151478][   T10]      ___sys_sendmsg+0xee/0x170
[ 2171.151478][   T10]      __sys_sendmsg+0xcd/0x170
[ 2171.151478][   T10]      do_syscall_64+0xc6/0x1e0
[ 2171.151478][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2171.151478][   T10] 
[ 2181.393787][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2181.394194][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2181.394194][   T10]      dst_init+0x84/0x4a0
[ 2181.394194][   T10]      dst_alloc+0x97/0x150
[ 2181.394194][   T10]      ip6_dst_alloc+0x23/0x90
[ 2181.394194][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2181.394194][   T10]      ip6_pol_route+0x56f/0x840
[ 2181.394194][   T10]      fib6_rule_lookup+0x456/0x630
[ 2181.394194][   T10]      ip6_route_input+0x59c/0xa50
[ 2181.394194][   T10]      ipv6_rcv+0x397/0x810
[ 2181.394194][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2181.394194][   T10]      process_backlog+0x101/0x620
[ 2181.394194][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2181.394194][   T10]      net_rx_action+0x495/0xbe0
[ 2181.394194][   T10]      __do_softirq+0x1b5/0x7f6
[ 2181.394194][   T10] 
[ 2181.395969][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2181.395969][   T10]      netdev_get_by_index+0x5e/0x80
[ 2181.395969][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2181.395969][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2181.395969][   T10]      ip6_route_add+0x1c/0x140
[ 2181.395969][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2181.395969][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2181.395969][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2181.395969][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2181.395969][   T10]      netlink_rcv_skb+0x130/0x360
[ 2181.395969][   T10]      netlink_unicast+0x449/0x710
[ 2181.395969][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2181.395969][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2181.395969][   T10]      ___sys_sendmsg+0xee/0x170
[ 2181.395969][   T10]      __sys_sendmsg+0xcd/0x170
[ 2181.395969][   T10]      do_syscall_64+0xc6/0x1e0
[ 2181.395969][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2181.395969][   T10] 
[ 2181.397996][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2181.397996][   T10]      netdev_get_by_index+0x5e/0x80
[ 2181.397996][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2181.397996][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2181.397996][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2181.397996][   T10]      ipv6_add_addr+0x411/0x2000
[ 2181.397996][   T10]      inet6_addr_add+0x30e/0xa40
[ 2181.397996][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2181.397996][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2181.397996][   T10]      netlink_rcv_skb+0x130/0x360
[ 2181.397996][   T10]      netlink_unicast+0x449/0x710
[ 2181.397996][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2181.397996][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2181.397996][   T10]      ___sys_sendmsg+0xee/0x170
[ 2181.397996][   T10]      __sys_sendmsg+0xcd/0x170
[ 2181.397996][   T10]      do_syscall_64+0xc6/0x1e0
[ 2181.397996][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2181.397996][   T10] 
[ 2181.400401][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2181.400401][   T10]      netdev_get_by_index+0x5e/0x80
[ 2181.400401][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2181.400401][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2181.400401][   T10]      ip6_route_add+0x1c/0x140
[ 2181.400401][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2181.400401][   T10]      addrconf_add_dev+0xe2/0x170
[ 2181.400401][   T10]      inet6_addr_add+0x12f/0xa40
[ 2181.400401][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2181.400401][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2181.400401][   T10]      netlink_rcv_skb+0x130/0x360
[ 2181.400401][   T10]      netlink_unicast+0x449/0x710
[ 2181.400401][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2181.400401][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2181.400401][   T10]      ___sys_sendmsg+0xee/0x170
[ 2181.400401][   T10]      __sys_sendmsg+0xcd/0x170
[ 2181.400401][   T10]      do_syscall_64+0xc6/0x1e0
[ 2181.400401][   T10] 
[ 2181.402383][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2181.402383][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2181.402383][   T10]      ipv6_find_idev+0x102/0x170
[ 2181.402383][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2181.402383][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2181.402383][   T10]      netlink_rcv_skb+0x130/0x360
[ 2181.402383][   T10]      netlink_unicast+0x449/0x710
[ 2181.402383][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2181.402383][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2181.402383][   T10]      ___sys_sendmsg+0xee/0x170
[ 2181.402383][   T10]      __sys_sendmsg+0xcd/0x170
[ 2181.402383][   T10]      do_syscall_64+0xc6/0x1e0
[ 2181.402383][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2181.402383][   T10] 
[ 2181.403926][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2181.403926][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2181.403926][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2181.403926][   T10]      ipv6_find_idev+0x102/0x170
[ 2181.403926][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2181.403926][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2181.403926][   T10]      netlink_rcv_skb+0x130/0x360
[ 2181.403926][   T10]      netlink_unicast+0x449/0x710
[ 2181.403926][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2181.403926][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2181.403926][   T10]      ___sys_sendmsg+0xee/0x170
[ 2181.403926][   T10]      __sys_sendmsg+0xcd/0x170
[ 2181.403926][   T10]      do_syscall_64+0xc6/0x1e0
[ 2181.403926][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2181.403926][   T10] 
[ 2181.405617][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2181.405876][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2181.405876][   T10]      dst_init+0x84/0x4a0
[ 2181.405876][   T10]      dst_alloc+0x97/0x150
[ 2181.405876][   T10]      ip6_dst_alloc+0x23/0x90
[ 2181.405876][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2181.405876][   T10]      ip6_pol_route+0x56f/0x840
[ 2181.405876][   T10]      fib6_rule_lookup+0x456/0x630
[ 2181.405876][   T10]      ip6_route_input+0x59c/0xa50
[ 2181.405876][   T10]      ipv6_rcv+0x397/0x810
[ 2181.405876][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2181.405876][   T10]      process_backlog+0x101/0x620
[ 2181.405876][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2181.405876][   T10]      net_rx_action+0x495/0xbe0
[ 2181.405876][   T10]      __do_softirq+0x1b5/0x7f6
[ 2181.405876][   T10] 
[ 2181.407510][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2181.407510][   T10]      netdev_get_by_index+0x5e/0x80
[ 2181.407510][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2181.407510][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2181.407510][   T10]      ip6_route_add+0x1c/0x140
[ 2181.407510][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2181.407510][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2181.407510][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2181.407510][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2181.407510][   T10]      netlink_rcv_skb+0x130/0x360
[ 2181.407510][   T10]      netlink_unicast+0x449/0x710
[ 2181.407510][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2181.407510][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2181.407510][   T10]      ___sys_sendmsg+0xee/0x170
[ 2181.407510][   T10]      __sys_sendmsg+0xcd/0x170
[ 2181.407510][   T10]      do_syscall_64+0xc6/0x1e0
[ 2181.407510][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2181.407510][   T10] 
[ 2181.409501][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2181.409501][   T10]      netdev_get_by_index+0x5e/0x80
[ 2181.409501][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2181.409501][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2181.409501][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2181.409501][   T10]      ipv6_add_addr+0x411/0x2000
[ 2181.409501][   T10]      inet6_addr_add+0x30e/0xa40
[ 2181.409501][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2181.409501][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2181.409501][   T10]      netlink_rcv_skb+0x130/0x360
[ 2181.409501][   T10]      netlink_unicast+0x449/0x710
[ 2181.409501][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2181.409501][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2181.409501][   T10]      ___sys_sendmsg+0xee/0x170
[ 2181.409501][   T10]      __sys_sendmsg+0xcd/0x170
[ 2181.409501][   T10]      do_syscall_64+0xc6/0x1e0
[ 2181.409501][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2181.409501][   T10] 
[ 2181.411492][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2181.411492][   T10]      netdev_get_by_index+0x5e/0x80
[ 2181.411492][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2181.411492][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2181.411492][   T10]      ip6_route_add+0x1c/0x140
[ 2181.411492][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2181.411492][   T10]      addrconf_add_dev+0xe2/0x170
[ 2181.411492][   T10]      inet6_addr_add+0x12f/0xa40
[ 2181.411492][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2181.411492][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2181.411492][   T10]      netlink_rcv_skb+0x130/0x360
[ 2181.411492][   T10]      netlink_unicast+0x449/0x710
[ 2181.411492][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2181.411492][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2181.411492][   T10]      ___sys_sendmsg+0xee/0x170
[ 2181.411492][   T10]      __sys_sendmsg+0xcd/0x170
[ 2181.411492][   T10]      do_syscall_64+0xc6/0x1e0
[ 2181.411492][   T10] 
[ 2181.413452][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2181.413452][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2181.413452][   T10]      ipv6_find_idev+0x102/0x170
[ 2181.413452][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2181.413452][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2181.413452][   T10]      netlink_rcv_skb+0x130/0x360
[ 2181.413452][   T10]      netlink_unicast+0x449/0x710
[ 2181.413452][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2181.413452][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2181.413452][   T10]      ___sys_sendmsg+0xee/0x170
[ 2181.413452][   T10]      __sys_sendmsg+0xcd/0x170
[ 2181.413452][   T10]      do_syscall_64+0xc6/0x1e0
[ 2181.413452][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2181.413452][   T10] 
[ 2181.414990][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2181.414990][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2181.414990][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2181.414990][   T10]      ipv6_find_idev+0x102/0x170
[ 2181.414990][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2181.414990][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2181.414990][   T10]      netlink_rcv_skb+0x130/0x360
[ 2181.414990][   T10]      netlink_unicast+0x449/0x710
[ 2181.414990][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2181.414990][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2181.414990][   T10]      ___sys_sendmsg+0xee/0x170
[ 2181.414990][   T10]      __sys_sendmsg+0xcd/0x170
[ 2181.414990][   T10]      do_syscall_64+0xc6/0x1e0
[ 2181.414990][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2181.414990][   T10] 
[ 2191.657778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2191.658225][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2191.658225][   T10]      dst_init+0x84/0x4a0
[ 2191.658225][   T10]      dst_alloc+0x97/0x150
[ 2191.658225][   T10]      ip6_dst_alloc+0x23/0x90
[ 2191.658225][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2191.658225][   T10]      ip6_pol_route+0x56f/0x840
[ 2191.658225][   T10]      fib6_rule_lookup+0x456/0x630
[ 2191.658225][   T10]      ip6_route_input+0x59c/0xa50
[ 2191.658225][   T10]      ipv6_rcv+0x397/0x810
[ 2191.658225][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2191.658225][   T10]      process_backlog+0x101/0x620
[ 2191.658225][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2191.658225][   T10]      net_rx_action+0x495/0xbe0
[ 2191.658225][   T10]      __do_softirq+0x1b5/0x7f6
[ 2191.658225][   T10] 
[ 2191.659912][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2191.659912][   T10]      netdev_get_by_index+0x5e/0x80
[ 2191.659912][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2191.659912][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2191.659912][   T10]      ip6_route_add+0x1c/0x140
[ 2191.659912][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2191.659912][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2191.659912][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2191.659912][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2191.659912][   T10]      netlink_rcv_skb+0x130/0x360
[ 2191.659912][   T10]      netlink_unicast+0x449/0x710
[ 2191.659912][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2191.659912][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2191.659912][   T10]      ___sys_sendmsg+0xee/0x170
[ 2191.659912][   T10]      __sys_sendmsg+0xcd/0x170
[ 2191.659912][   T10]      do_syscall_64+0xc6/0x1e0
[ 2191.659912][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2191.659912][   T10] 
[ 2191.661917][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2191.661917][   T10]      netdev_get_by_index+0x5e/0x80
[ 2191.661917][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2191.661917][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2191.661917][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2191.661917][   T10]      ipv6_add_addr+0x411/0x2000
[ 2191.661917][   T10]      inet6_addr_add+0x30e/0xa40
[ 2191.661917][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2191.661917][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2191.661917][   T10]      netlink_rcv_skb+0x130/0x360
[ 2191.661917][   T10]      netlink_unicast+0x449/0x710
[ 2191.661917][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2191.661917][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2191.661917][   T10]      ___sys_sendmsg+0xee/0x170
[ 2191.661917][   T10]      __sys_sendmsg+0xcd/0x170
[ 2191.661917][   T10]      do_syscall_64+0xc6/0x1e0
[ 2191.661917][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2191.661917][   T10] 
[ 2191.663948][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2191.663948][   T10]      netdev_get_by_index+0x5e/0x80
[ 2191.663948][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2191.663948][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2191.663948][   T10]      ip6_route_add+0x1c/0x140
[ 2191.663948][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2191.663948][   T10]      addrconf_add_dev+0xe2/0x170
[ 2191.663948][   T10]      inet6_addr_add+0x12f/0xa40
[ 2191.663948][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2191.663948][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2191.663948][   T10]      netlink_rcv_skb+0x130/0x360
[ 2191.663948][   T10]      netlink_unicast+0x449/0x710
[ 2191.663948][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2191.663948][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2191.663948][   T10]      ___sys_sendmsg+0xee/0x170
[ 2191.663948][   T10]      __sys_sendmsg+0xcd/0x170
[ 2191.663948][   T10]      do_syscall_64+0xc6/0x1e0
[ 2191.663948][   T10] 
[ 2191.665913][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2191.665913][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2191.665913][   T10]      ipv6_find_idev+0x102/0x170
[ 2191.665913][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2191.665913][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2191.665913][   T10]      netlink_rcv_skb+0x130/0x360
[ 2191.665913][   T10]      netlink_unicast+0x449/0x710
[ 2191.665913][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2191.665913][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2191.665913][   T10]      ___sys_sendmsg+0xee/0x170
[ 2191.665913][   T10]      __sys_sendmsg+0xcd/0x170
[ 2191.665913][   T10]      do_syscall_64+0xc6/0x1e0
[ 2191.665913][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2191.665913][   T10] 
[ 2191.667448][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2191.667448][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2191.667448][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2191.667448][   T10]      ipv6_find_idev+0x102/0x170
[ 2191.667448][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2191.667448][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2191.667448][   T10]      netlink_rcv_skb+0x130/0x360
[ 2191.667448][   T10]      netlink_unicast+0x449/0x710
[ 2191.667448][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2191.667448][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2191.667448][   T10]      ___sys_sendmsg+0xee/0x170
[ 2191.667448][   T10]      __sys_sendmsg+0xcd/0x170
[ 2191.667448][   T10]      do_syscall_64+0xc6/0x1e0
[ 2191.667448][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2191.667448][   T10] 
[ 2191.669141][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2191.669382][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2191.669382][   T10]      dst_init+0x84/0x4a0
[ 2191.669382][   T10]      dst_alloc+0x97/0x150
[ 2191.669382][   T10]      ip6_dst_alloc+0x23/0x90
[ 2191.669382][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2191.669382][   T10]      ip6_pol_route+0x56f/0x840
[ 2191.669382][   T10]      fib6_rule_lookup+0x456/0x630
[ 2191.669382][   T10]      ip6_route_input+0x59c/0xa50
[ 2191.669382][   T10]      ipv6_rcv+0x397/0x810
[ 2191.669382][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2191.669382][   T10]      process_backlog+0x101/0x620
[ 2191.669382][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2191.669382][   T10]      net_rx_action+0x495/0xbe0
[ 2191.669382][   T10]      __do_softirq+0x1b5/0x7f6
[ 2191.669382][   T10] 
[ 2191.671017][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2191.671017][   T10]      netdev_get_by_index+0x5e/0x80
[ 2191.671017][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2191.671017][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2191.671017][   T10]      ip6_route_add+0x1c/0x140
[ 2191.671017][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2191.671017][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2191.671017][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2191.671017][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2191.671017][   T10]      netlink_rcv_skb+0x130/0x360
[ 2191.671017][   T10]      netlink_unicast+0x449/0x710
[ 2191.671017][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2191.671017][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2191.671017][   T10]      ___sys_sendmsg+0xee/0x170
[ 2191.671017][   T10]      __sys_sendmsg+0xcd/0x170
[ 2191.671017][   T10]      do_syscall_64+0xc6/0x1e0
[ 2191.671017][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2191.671017][   T10] 
[ 2191.673029][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2191.673029][   T10]      netdev_get_by_index+0x5e/0x80
[ 2191.673029][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2191.673029][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2191.673029][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2191.673029][   T10]      ipv6_add_addr+0x411/0x2000
[ 2191.673029][   T10]      inet6_addr_add+0x30e/0xa40
[ 2191.673029][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2191.673029][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2191.673029][   T10]      netlink_rcv_skb+0x130/0x360
[ 2191.673029][   T10]      netlink_unicast+0x449/0x710
[ 2191.673029][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2191.673029][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2191.673029][   T10]      ___sys_sendmsg+0xee/0x170
[ 2191.673029][   T10]      __sys_sendmsg+0xcd/0x170
[ 2191.673029][   T10]      do_syscall_64+0xc6/0x1e0
[ 2191.673029][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2191.673029][   T10] 
[ 2191.675017][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2191.675017][   T10]      netdev_get_by_index+0x5e/0x80
[ 2191.675017][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2191.675017][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2191.675017][   T10]      ip6_route_add+0x1c/0x140
[ 2191.675017][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2191.675017][   T10]      addrconf_add_dev+0xe2/0x170
[ 2191.675017][   T10]      inet6_addr_add+0x12f/0xa40
[ 2191.675017][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2191.675017][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2191.675017][   T10]      netlink_rcv_skb+0x130/0x360
[ 2191.675017][   T10]      netlink_unicast+0x449/0x710
[ 2191.675017][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2191.675017][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2191.675017][   T10]      ___sys_sendmsg+0xee/0x170
[ 2191.675017][   T10]      __sys_sendmsg+0xcd/0x170
[ 2191.675017][   T10]      do_syscall_64+0xc6/0x1e0
[ 2191.675017][   T10] 
[ 2191.676975][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2191.676975][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2191.676975][   T10]      ipv6_find_idev+0x102/0x170
[ 2191.676975][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2191.676975][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2191.676975][   T10]      netlink_rcv_skb+0x130/0x360
[ 2191.676975][   T10]      netlink_unicast+0x449/0x710
[ 2191.676975][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2191.676975][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2191.676975][   T10]      ___sys_sendmsg+0xee/0x170
[ 2191.676975][   T10]      __sys_sendmsg+0xcd/0x170
[ 2191.676975][   T10]      do_syscall_64+0xc6/0x1e0
[ 2191.676975][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2191.676975][   T10] 
[ 2191.678507][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2191.678507][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2191.678507][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2191.678507][   T10]      ipv6_find_idev+0x102/0x170
[ 2191.678507][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2191.678507][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2191.678507][   T10]      netlink_rcv_skb+0x130/0x360
[ 2191.678507][   T10]      netlink_unicast+0x449/0x710
[ 2191.678507][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2191.678507][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2191.678507][   T10]      ___sys_sendmsg+0xee/0x170
[ 2191.678507][   T10]      __sys_sendmsg+0xcd/0x170
[ 2191.678507][   T10]      do_syscall_64+0xc6/0x1e0
[ 2191.678507][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2191.678507][   T10] 
[ 2201.761780][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2201.762249][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2201.762249][   T10]      dst_init+0x84/0x4a0
[ 2201.762249][   T10]      dst_alloc+0x97/0x150
[ 2201.762249][   T10]      ip6_dst_alloc+0x23/0x90
[ 2201.762249][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2201.762249][   T10]      ip6_pol_route+0x56f/0x840
[ 2201.762249][   T10]      fib6_rule_lookup+0x456/0x630
[ 2201.762249][   T10]      ip6_route_input+0x59c/0xa50
[ 2201.762249][   T10]      ipv6_rcv+0x397/0x810
[ 2201.762249][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2201.762249][   T10]      process_backlog+0x101/0x620
[ 2201.762249][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2201.762249][   T10]      net_rx_action+0x495/0xbe0
[ 2201.762249][   T10]      __do_softirq+0x1b5/0x7f6
[ 2201.762249][   T10] 
[ 2201.763923][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2201.763923][   T10]      netdev_get_by_index+0x5e/0x80
[ 2201.763923][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2201.763923][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2201.763923][   T10]      ip6_route_add+0x1c/0x140
[ 2201.763923][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2201.763923][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2201.763923][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2201.763923][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2201.763923][   T10]      netlink_rcv_skb+0x130/0x360
[ 2201.763923][   T10]      netlink_unicast+0x449/0x710
[ 2201.763923][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2201.763923][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2201.763923][   T10]      ___sys_sendmsg+0xee/0x170
[ 2201.763923][   T10]      __sys_sendmsg+0xcd/0x170
[ 2201.763923][   T10]      do_syscall_64+0xc6/0x1e0
[ 2201.763923][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2201.763923][   T10] 
[ 2201.765924][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2201.765924][   T10]      netdev_get_by_index+0x5e/0x80
[ 2201.765924][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2201.765924][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2201.765924][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2201.765924][   T10]      ipv6_add_addr+0x411/0x2000
[ 2201.765924][   T10]      inet6_addr_add+0x30e/0xa40
[ 2201.765924][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2201.765924][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2201.765924][   T10]      netlink_rcv_skb+0x130/0x360
[ 2201.765924][   T10]      netlink_unicast+0x449/0x710
[ 2201.765924][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2201.765924][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2201.765924][   T10]      ___sys_sendmsg+0xee/0x170
[ 2201.765924][   T10]      __sys_sendmsg+0xcd/0x170
[ 2201.765924][   T10]      do_syscall_64+0xc6/0x1e0
[ 2201.765924][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2201.765924][   T10] 
[ 2201.767921][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2201.767921][   T10]      netdev_get_by_index+0x5e/0x80
[ 2201.767921][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2201.767921][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2201.767921][   T10]      ip6_route_add+0x1c/0x140
[ 2201.767921][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2201.767921][   T10]      addrconf_add_dev+0xe2/0x170
[ 2201.767921][   T10]      inet6_addr_add+0x12f/0xa40
[ 2201.767921][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2201.767921][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2201.767921][   T10]      netlink_rcv_skb+0x130/0x360
[ 2201.767921][   T10]      netlink_unicast+0x449/0x710
[ 2201.767921][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2201.767921][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2201.767921][   T10]      ___sys_sendmsg+0xee/0x170
[ 2201.767921][   T10]      __sys_sendmsg+0xcd/0x170
[ 2201.767921][   T10]      do_syscall_64+0xc6/0x1e0
[ 2201.767921][   T10] 
[ 2201.769889][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2201.769889][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2201.769889][   T10]      ipv6_find_idev+0x102/0x170
[ 2201.769889][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2201.769889][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2201.769889][   T10]      netlink_rcv_skb+0x130/0x360
[ 2201.769889][   T10]      netlink_unicast+0x449/0x710
[ 2201.769889][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2201.769889][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2201.769889][   T10]      ___sys_sendmsg+0xee/0x170
[ 2201.769889][   T10]      __sys_sendmsg+0xcd/0x170
[ 2201.769889][   T10]      do_syscall_64+0xc6/0x1e0
[ 2201.769889][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2201.769889][   T10] 
[ 2201.771428][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2201.771428][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2201.771428][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2201.771428][   T10]      ipv6_find_idev+0x102/0x170
[ 2201.771428][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2201.771428][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2201.771428][   T10]      netlink_rcv_skb+0x130/0x360
[ 2201.771428][   T10]      netlink_unicast+0x449/0x710
[ 2201.771428][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2201.771428][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2201.771428][   T10]      ___sys_sendmsg+0xee/0x170
[ 2201.771428][   T10]      __sys_sendmsg+0xcd/0x170
[ 2201.771428][   T10]      do_syscall_64+0xc6/0x1e0
[ 2201.771428][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2201.771428][   T10] 
[ 2201.773124][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2201.773368][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2201.773368][   T10]      dst_init+0x84/0x4a0
[ 2201.773368][   T10]      dst_alloc+0x97/0x150
[ 2201.773368][   T10]      ip6_dst_alloc+0x23/0x90
[ 2201.773368][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2201.773368][   T10]      ip6_pol_route+0x56f/0x840
[ 2201.773368][   T10]      fib6_rule_lookup+0x456/0x630
[ 2201.773368][   T10]      ip6_route_input+0x59c/0xa50
[ 2201.773368][   T10]      ipv6_rcv+0x397/0x810
[ 2201.773368][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2201.773368][   T10]      process_backlog+0x101/0x620
[ 2201.773368][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2201.773368][   T10]      net_rx_action+0x495/0xbe0
[ 2201.773368][   T10]      __do_softirq+0x1b5/0x7f6
[ 2201.773368][   T10] 
[ 2201.775010][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2201.775010][   T10]      netdev_get_by_index+0x5e/0x80
[ 2201.775010][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2201.775010][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2201.775010][   T10]      ip6_route_add+0x1c/0x140
[ 2201.775010][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2201.775010][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2201.775010][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2201.775010][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2201.775010][   T10]      netlink_rcv_skb+0x130/0x360
[ 2201.775010][   T10]      netlink_unicast+0x449/0x710
[ 2201.775010][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2201.775010][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2201.775010][   T10]      ___sys_sendmsg+0xee/0x170
[ 2201.775010][   T10]      __sys_sendmsg+0xcd/0x170
[ 2201.775010][   T10]      do_syscall_64+0xc6/0x1e0
[ 2201.775010][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2201.775010][   T10] 
[ 2201.777005][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2201.777005][   T10]      netdev_get_by_index+0x5e/0x80
[ 2201.777005][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2201.777005][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2201.777005][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2201.777005][   T10]      ipv6_add_addr+0x411/0x2000
[ 2201.777005][   T10]      inet6_addr_add+0x30e/0xa40
[ 2201.777005][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2201.777005][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2201.777005][   T10]      netlink_rcv_skb+0x130/0x360
[ 2201.777005][   T10]      netlink_unicast+0x449/0x710
[ 2201.777005][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2201.777005][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2201.777005][   T10]      ___sys_sendmsg+0xee/0x170
[ 2201.777005][   T10]      __sys_sendmsg+0xcd/0x170
[ 2201.777005][   T10]      do_syscall_64+0xc6/0x1e0
[ 2201.777005][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2201.777005][   T10] 
[ 2201.779002][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2201.779002][   T10]      netdev_get_by_index+0x5e/0x80
[ 2201.779002][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2201.779002][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2201.779002][   T10]      ip6_route_add+0x1c/0x140
[ 2201.779002][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2201.779002][   T10]      addrconf_add_dev+0xe2/0x170
[ 2201.779002][   T10]      inet6_addr_add+0x12f/0xa40
[ 2201.779002][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2201.779002][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2201.779002][   T10]      netlink_rcv_skb+0x130/0x360
[ 2201.779002][   T10]      netlink_unicast+0x449/0x710
[ 2201.779002][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2201.779002][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2201.779002][   T10]      ___sys_sendmsg+0xee/0x170
[ 2201.779002][   T10]      __sys_sendmsg+0xcd/0x170
[ 2201.779002][   T10]      do_syscall_64+0xc6/0x1e0
[ 2201.779002][   T10] 
[ 2201.780954][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2201.780954][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2201.780954][   T10]      ipv6_find_idev+0x102/0x170
[ 2201.780954][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2201.780954][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2201.780954][   T10]      netlink_rcv_skb+0x130/0x360
[ 2201.780954][   T10]      netlink_unicast+0x449/0x710
[ 2201.780954][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2201.780954][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2201.780954][   T10]      ___sys_sendmsg+0xee/0x170
[ 2201.780954][   T10]      __sys_sendmsg+0xcd/0x170
[ 2201.780954][   T10]      do_syscall_64+0xc6/0x1e0
[ 2201.780954][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2201.780954][   T10] 
[ 2201.782493][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2201.782493][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2201.782493][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2201.782493][   T10]      ipv6_find_idev+0x102/0x170
[ 2201.782493][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2201.782493][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2201.782493][   T10]      netlink_rcv_skb+0x130/0x360
[ 2201.782493][   T10]      netlink_unicast+0x449/0x710
[ 2201.782493][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2201.782493][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2201.782493][   T10]      ___sys_sendmsg+0xee/0x170
[ 2201.782493][   T10]      __sys_sendmsg+0xcd/0x170
[ 2201.782493][   T10]      do_syscall_64+0xc6/0x1e0
[ 2201.782493][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2201.782493][   T10] 
[ 2212.033787][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2212.034243][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2212.034243][   T10]      dst_init+0x84/0x4a0
[ 2212.034243][   T10]      dst_alloc+0x97/0x150
[ 2212.034243][   T10]      ip6_dst_alloc+0x23/0x90
[ 2212.034243][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2212.034243][   T10]      ip6_pol_route+0x56f/0x840
[ 2212.034243][   T10]      fib6_rule_lookup+0x456/0x630
[ 2212.034243][   T10]      ip6_route_input+0x59c/0xa50
[ 2212.034243][   T10]      ipv6_rcv+0x397/0x810
[ 2212.034243][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2212.034243][   T10]      process_backlog+0x101/0x620
[ 2212.034243][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2212.034243][   T10]      net_rx_action+0x495/0xbe0
[ 2212.034243][   T10]      __do_softirq+0x1b5/0x7f6
[ 2212.034243][   T10] 
[ 2212.035944][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2212.035944][   T10]      netdev_get_by_index+0x5e/0x80
[ 2212.035944][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2212.035944][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2212.035944][   T10]      ip6_route_add+0x1c/0x140
[ 2212.035944][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2212.035944][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2212.035944][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2212.035944][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2212.035944][   T10]      netlink_rcv_skb+0x130/0x360
[ 2212.035944][   T10]      netlink_unicast+0x449/0x710
[ 2212.035944][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2212.035944][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2212.035944][   T10]      ___sys_sendmsg+0xee/0x170
[ 2212.035944][   T10]      __sys_sendmsg+0xcd/0x170
[ 2212.035944][   T10]      do_syscall_64+0xc6/0x1e0
[ 2212.035944][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2212.035944][   T10] 
[ 2212.037957][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2212.037957][   T10]      netdev_get_by_index+0x5e/0x80
[ 2212.037957][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2212.037957][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2212.037957][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2212.037957][   T10]      ipv6_add_addr+0x411/0x2000
[ 2212.037957][   T10]      inet6_addr_add+0x30e/0xa40
[ 2212.037957][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2212.037957][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2212.037957][   T10]      netlink_rcv_skb+0x130/0x360
[ 2212.037957][   T10]      netlink_unicast+0x449/0x710
[ 2212.037957][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2212.037957][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2212.037957][   T10]      ___sys_sendmsg+0xee/0x170
[ 2212.037957][   T10]      __sys_sendmsg+0xcd/0x170
[ 2212.037957][   T10]      do_syscall_64+0xc6/0x1e0
[ 2212.037957][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2212.037957][   T10] 
[ 2212.039963][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2212.039963][   T10]      netdev_get_by_index+0x5e/0x80
[ 2212.039963][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2212.039963][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2212.039963][   T10]      ip6_route_add+0x1c/0x140
[ 2212.039963][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2212.039963][   T10]      addrconf_add_dev+0xe2/0x170
[ 2212.039963][   T10]      inet6_addr_add+0x12f/0xa40
[ 2212.039963][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2212.039963][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2212.039963][   T10]      netlink_rcv_skb+0x130/0x360
[ 2212.039963][   T10]      netlink_unicast+0x449/0x710
[ 2212.039963][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2212.039963][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2212.039963][   T10]      ___sys_sendmsg+0xee/0x170
[ 2212.039963][   T10]      __sys_sendmsg+0xcd/0x170
[ 2212.039963][   T10]      do_syscall_64+0xc6/0x1e0
[ 2212.039963][   T10] 
[ 2212.041933][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2212.041933][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2212.041933][   T10]      ipv6_find_idev+0x102/0x170
[ 2212.041933][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2212.041933][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2212.041933][   T10]      netlink_rcv_skb+0x130/0x360
[ 2212.041933][   T10]      netlink_unicast+0x449/0x710
[ 2212.041933][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2212.041933][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2212.041933][   T10]      ___sys_sendmsg+0xee/0x170
[ 2212.041933][   T10]      __sys_sendmsg+0xcd/0x170
[ 2212.041933][   T10]      do_syscall_64+0xc6/0x1e0
[ 2212.041933][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2212.041933][   T10] 
[ 2212.043490][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2212.043490][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2212.043490][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2212.043490][   T10]      ipv6_find_idev+0x102/0x170
[ 2212.043490][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2212.043490][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2212.043490][   T10]      netlink_rcv_skb+0x130/0x360
[ 2212.043490][   T10]      netlink_unicast+0x449/0x710
[ 2212.043490][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2212.043490][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2212.043490][   T10]      ___sys_sendmsg+0xee/0x170
[ 2212.043490][   T10]      __sys_sendmsg+0xcd/0x170
[ 2212.043490][   T10]      do_syscall_64+0xc6/0x1e0
[ 2212.043490][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2212.043490][   T10] 
[ 2212.045182][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2212.045429][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2212.045429][   T10]      dst_init+0x84/0x4a0
[ 2212.045429][   T10]      dst_alloc+0x97/0x150
[ 2212.045429][   T10]      ip6_dst_alloc+0x23/0x90
[ 2212.045429][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2212.045429][   T10]      ip6_pol_route+0x56f/0x840
[ 2212.045429][   T10]      fib6_rule_lookup+0x456/0x630
[ 2212.045429][   T10]      ip6_route_input+0x59c/0xa50
[ 2212.045429][   T10]      ipv6_rcv+0x397/0x810
[ 2212.045429][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2212.045429][   T10]      process_backlog+0x101/0x620
[ 2212.045429][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2212.045429][   T10]      net_rx_action+0x495/0xbe0
[ 2212.045429][   T10]      __do_softirq+0x1b5/0x7f6
[ 2212.045429][   T10] 
[ 2212.047063][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2212.047063][   T10]      netdev_get_by_index+0x5e/0x80
[ 2212.047063][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2212.047063][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2212.047063][   T10]      ip6_route_add+0x1c/0x140
[ 2212.047063][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2212.047063][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2212.047063][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2212.047063][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2212.047063][   T10]      netlink_rcv_skb+0x130/0x360
[ 2212.047063][   T10]      netlink_unicast+0x449/0x710
[ 2212.047063][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2212.047063][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2212.047063][   T10]      ___sys_sendmsg+0xee/0x170
[ 2212.047063][   T10]      __sys_sendmsg+0xcd/0x170
[ 2212.047063][   T10]      do_syscall_64+0xc6/0x1e0
[ 2212.047063][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2212.047063][   T10] 
[ 2212.049061][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2212.049061][   T10]      netdev_get_by_index+0x5e/0x80
[ 2212.049061][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2212.049061][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2212.049061][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2212.049061][   T10]      ipv6_add_addr+0x411/0x2000
[ 2212.049061][   T10]      inet6_addr_add+0x30e/0xa40
[ 2212.049061][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2212.049061][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2212.049061][   T10]      netlink_rcv_skb+0x130/0x360
[ 2212.049061][   T10]      netlink_unicast+0x449/0x710
[ 2212.049061][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2212.049061][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2212.049061][   T10]      ___sys_sendmsg+0xee/0x170
[ 2212.049061][   T10]      __sys_sendmsg+0xcd/0x170
[ 2212.049061][   T10]      do_syscall_64+0xc6/0x1e0
[ 2212.049061][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2212.049061][   T10] 
[ 2212.051054][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2212.051054][   T10]      netdev_get_by_index+0x5e/0x80
[ 2212.051054][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2212.051054][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2212.051054][   T10]      ip6_route_add+0x1c/0x140
[ 2212.051054][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2212.051054][   T10]      addrconf_add_dev+0xe2/0x170
[ 2212.051054][   T10]      inet6_addr_add+0x12f/0xa40
[ 2212.051054][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2212.051054][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2212.051054][   T10]      netlink_rcv_skb+0x130/0x360
[ 2212.051054][   T10]      netlink_unicast+0x449/0x710
[ 2212.051054][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2212.051054][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2212.051054][   T10]      ___sys_sendmsg+0xee/0x170
[ 2212.051054][   T10]      __sys_sendmsg+0xcd/0x170
[ 2212.051054][   T10]      do_syscall_64+0xc6/0x1e0
[ 2212.051054][   T10] 
[ 2212.053018][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2212.053018][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2212.053018][   T10]      ipv6_find_idev+0x102/0x170
[ 2212.053018][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2212.053018][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2212.053018][   T10]      netlink_rcv_skb+0x130/0x360
[ 2212.053018][   T10]      netlink_unicast+0x449/0x710
[ 2212.053018][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2212.053018][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2212.053018][   T10]      ___sys_sendmsg+0xee/0x170
[ 2212.053018][   T10]      __sys_sendmsg+0xcd/0x170
[ 2212.053018][   T10]      do_syscall_64+0xc6/0x1e0
[ 2212.053018][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2212.053018][   T10] 
[ 2212.054552][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2212.054552][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2212.054552][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2212.054552][   T10]      ipv6_find_idev+0x102/0x170
[ 2212.054552][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2212.054552][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2212.054552][   T10]      netlink_rcv_skb+0x130/0x360
[ 2212.054552][   T10]      netlink_unicast+0x449/0x710
[ 2212.054552][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2212.054552][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2212.054552][   T10]      ___sys_sendmsg+0xee/0x170
[ 2212.054552][   T10]      __sys_sendmsg+0xcd/0x170
[ 2212.054552][   T10]      do_syscall_64+0xc6/0x1e0
[ 2212.054552][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2212.054552][   T10] 
[ 2222.305722][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2222.306187][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2222.306187][   T10]      dst_init+0x84/0x4a0
[ 2222.306187][   T10]      dst_alloc+0x97/0x150
[ 2222.306187][   T10]      ip6_dst_alloc+0x23/0x90
[ 2222.306187][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2222.306187][   T10]      ip6_pol_route+0x56f/0x840
[ 2222.306187][   T10]      fib6_rule_lookup+0x456/0x630
[ 2222.306187][   T10]      ip6_route_input+0x59c/0xa50
[ 2222.306187][   T10]      ipv6_rcv+0x397/0x810
[ 2222.306187][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2222.306187][   T10]      process_backlog+0x101/0x620
[ 2222.306187][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2222.306187][   T10]      net_rx_action+0x495/0xbe0
[ 2222.306187][   T10]      __do_softirq+0x1b5/0x7f6
[ 2222.306187][   T10] 
[ 2222.307863][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2222.307863][   T10]      netdev_get_by_index+0x5e/0x80
[ 2222.307863][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2222.307863][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2222.307863][   T10]      ip6_route_add+0x1c/0x140
[ 2222.307863][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2222.307863][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2222.307863][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2222.307863][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2222.307863][   T10]      netlink_rcv_skb+0x130/0x360
[ 2222.307863][   T10]      netlink_unicast+0x449/0x710
[ 2222.307863][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2222.307863][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2222.307863][   T10]      ___sys_sendmsg+0xee/0x170
[ 2222.307863][   T10]      __sys_sendmsg+0xcd/0x170
[ 2222.307863][   T10]      do_syscall_64+0xc6/0x1e0
[ 2222.307863][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2222.307863][   T10] 
[ 2222.309865][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2222.309865][   T10]      netdev_get_by_index+0x5e/0x80
[ 2222.309865][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2222.309865][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2222.309865][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2222.309865][   T10]      ipv6_add_addr+0x411/0x2000
[ 2222.309865][   T10]      inet6_addr_add+0x30e/0xa40
[ 2222.309865][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2222.309865][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2222.309865][   T10]      netlink_rcv_skb+0x130/0x360
[ 2222.309865][   T10]      netlink_unicast+0x449/0x710
[ 2222.309865][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2222.309865][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2222.309865][   T10]      ___sys_sendmsg+0xee/0x170
[ 2222.309865][   T10]      __sys_sendmsg+0xcd/0x170
[ 2222.309865][   T10]      do_syscall_64+0xc6/0x1e0
[ 2222.309865][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2222.309865][   T10] 
[ 2222.311879][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2222.311879][   T10]      netdev_get_by_index+0x5e/0x80
[ 2222.311879][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2222.311879][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2222.311879][   T10]      ip6_route_add+0x1c/0x140
[ 2222.311879][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2222.311879][   T10]      addrconf_add_dev+0xe2/0x170
[ 2222.311879][   T10]      inet6_addr_add+0x12f/0xa40
[ 2222.311879][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2222.311879][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2222.311879][   T10]      netlink_rcv_skb+0x130/0x360
[ 2222.311879][   T10]      netlink_unicast+0x449/0x710
[ 2222.311879][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2222.311879][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2222.311879][   T10]      ___sys_sendmsg+0xee/0x170
[ 2222.311879][   T10]      __sys_sendmsg+0xcd/0x170
[ 2222.311879][   T10]      do_syscall_64+0xc6/0x1e0
[ 2222.311879][   T10] 
[ 2222.313844][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2222.313844][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2222.313844][   T10]      ipv6_find_idev+0x102/0x170
[ 2222.313844][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2222.313844][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2222.313844][   T10]      netlink_rcv_skb+0x130/0x360
[ 2222.313844][   T10]      netlink_unicast+0x449/0x710
[ 2222.313844][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2222.313844][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2222.313844][   T10]      ___sys_sendmsg+0xee/0x170
[ 2222.313844][   T10]      __sys_sendmsg+0xcd/0x170
[ 2222.313844][   T10]      do_syscall_64+0xc6/0x1e0
[ 2222.313844][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2222.313844][   T10] 
[ 2222.315391][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2222.315391][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2222.315391][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2222.315391][   T10]      ipv6_find_idev+0x102/0x170
[ 2222.315391][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2222.315391][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2222.315391][   T10]      netlink_rcv_skb+0x130/0x360
[ 2222.315391][   T10]      netlink_unicast+0x449/0x710
[ 2222.315391][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2222.315391][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2222.315391][   T10]      ___sys_sendmsg+0xee/0x170
[ 2222.315391][   T10]      __sys_sendmsg+0xcd/0x170
[ 2222.315391][   T10]      do_syscall_64+0xc6/0x1e0
[ 2222.315391][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2222.315391][   T10] 
[ 2222.317099][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2222.317342][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2222.317342][   T10]      dst_init+0x84/0x4a0
[ 2222.317342][   T10]      dst_alloc+0x97/0x150
[ 2222.317342][   T10]      ip6_dst_alloc+0x23/0x90
[ 2222.317342][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2222.317342][   T10]      ip6_pol_route+0x56f/0x840
[ 2222.317342][   T10]      fib6_rule_lookup+0x456/0x630
[ 2222.317342][   T10]      ip6_route_input+0x59c/0xa50
[ 2222.317342][   T10]      ipv6_rcv+0x397/0x810
[ 2222.317342][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2222.317342][   T10]      process_backlog+0x101/0x620
[ 2222.317342][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2222.317342][   T10]      net_rx_action+0x495/0xbe0
[ 2222.317342][   T10]      __do_softirq+0x1b5/0x7f6
[ 2222.317342][   T10] 
[ 2222.319021][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2222.319021][   T10]      netdev_get_by_index+0x5e/0x80
[ 2222.319021][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2222.319021][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2222.319021][   T10]      ip6_route_add+0x1c/0x140
[ 2222.319021][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2222.319021][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2222.319021][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2222.319021][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2222.319021][   T10]      netlink_rcv_skb+0x130/0x360
[ 2222.319021][   T10]      netlink_unicast+0x449/0x710
[ 2222.319021][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2222.319021][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2222.319021][   T10]      ___sys_sendmsg+0xee/0x170
[ 2222.319021][   T10]      __sys_sendmsg+0xcd/0x170
[ 2222.319021][   T10]      do_syscall_64+0xc6/0x1e0
[ 2222.319021][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2222.319021][   T10] 
[ 2222.321032][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2222.321032][   T10]      netdev_get_by_index+0x5e/0x80
[ 2222.321032][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2222.321032][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2222.321032][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2222.321032][   T10]      ipv6_add_addr+0x411/0x2000
[ 2222.321032][   T10]      inet6_addr_add+0x30e/0xa40
[ 2222.321032][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2222.321032][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2222.321032][   T10]      netlink_rcv_skb+0x130/0x360
[ 2222.321032][   T10]      netlink_unicast+0x449/0x710
[ 2222.321032][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2222.321032][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2222.321032][   T10]      ___sys_sendmsg+0xee/0x170
[ 2222.321032][   T10]      __sys_sendmsg+0xcd/0x170
[ 2222.321032][   T10]      do_syscall_64+0xc6/0x1e0
[ 2222.321032][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2222.321032][   T10] 
[ 2222.323039][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2222.323039][   T10]      netdev_get_by_index+0x5e/0x80
[ 2222.323039][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2222.323039][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2222.323039][   T10]      ip6_route_add+0x1c/0x140
[ 2222.323039][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2222.323039][   T10]      addrconf_add_dev+0xe2/0x170
[ 2222.323039][   T10]      inet6_addr_add+0x12f/0xa40
[ 2222.323039][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2222.323039][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2222.323039][   T10]      netlink_rcv_skb+0x130/0x360
[ 2222.323039][   T10]      netlink_unicast+0x449/0x710
[ 2222.323039][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2222.323039][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2222.323039][   T10]      ___sys_sendmsg+0xee/0x170
[ 2222.323039][   T10]      __sys_sendmsg+0xcd/0x170
[ 2222.323039][   T10]      do_syscall_64+0xc6/0x1e0
[ 2222.323039][   T10] 
[ 2222.325006][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2222.325006][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2222.325006][   T10]      ipv6_find_idev+0x102/0x170
[ 2222.325006][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2222.325006][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2222.325006][   T10]      netlink_rcv_skb+0x130/0x360
[ 2222.325006][   T10]      netlink_unicast+0x449/0x710
[ 2222.325006][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2222.325006][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2222.325006][   T10]      ___sys_sendmsg+0xee/0x170
[ 2222.325006][   T10]      __sys_sendmsg+0xcd/0x170
[ 2222.325006][   T10]      do_syscall_64+0xc6/0x1e0
[ 2222.325006][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2222.325006][   T10] 
[ 2222.326544][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2222.326544][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2222.326544][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2222.326544][   T10]      ipv6_find_idev+0x102/0x170
[ 2222.326544][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2222.326544][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2222.326544][   T10]      netlink_rcv_skb+0x130/0x360
[ 2222.326544][   T10]      netlink_unicast+0x449/0x710
[ 2222.326544][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2222.326544][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2222.326544][   T10]      ___sys_sendmsg+0xee/0x170
[ 2222.326544][   T10]      __sys_sendmsg+0xcd/0x170
[ 2222.326544][   T10]      do_syscall_64+0xc6/0x1e0
[ 2222.326544][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2222.326544][   T10] 
[ 2232.457876][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2232.458327][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2232.458327][   T10]      dst_init+0x84/0x4a0
[ 2232.458327][   T10]      dst_alloc+0x97/0x150
[ 2232.458327][   T10]      ip6_dst_alloc+0x23/0x90
[ 2232.458327][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2232.458327][   T10]      ip6_pol_route+0x56f/0x840
[ 2232.458327][   T10]      fib6_rule_lookup+0x456/0x630
[ 2232.458327][   T10]      ip6_route_input+0x59c/0xa50
[ 2232.458327][   T10]      ipv6_rcv+0x397/0x810
[ 2232.458327][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2232.458327][   T10]      process_backlog+0x101/0x620
[ 2232.458327][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2232.458327][   T10]      net_rx_action+0x495/0xbe0
[ 2232.458327][   T10]      __do_softirq+0x1b5/0x7f6
[ 2232.458327][   T10] 
[ 2232.460013][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2232.460013][   T10]      netdev_get_by_index+0x5e/0x80
[ 2232.460013][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2232.460013][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2232.460013][   T10]      ip6_route_add+0x1c/0x140
[ 2232.460013][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2232.460013][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2232.460013][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2232.460013][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2232.460013][   T10]      netlink_rcv_skb+0x130/0x360
[ 2232.460013][   T10]      netlink_unicast+0x449/0x710
[ 2232.460013][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2232.460013][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2232.460013][   T10]      ___sys_sendmsg+0xee/0x170
[ 2232.460013][   T10]      __sys_sendmsg+0xcd/0x170
[ 2232.460013][   T10]      do_syscall_64+0xc6/0x1e0
[ 2232.460013][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2232.460013][   T10] 
[ 2232.462039][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2232.462039][   T10]      netdev_get_by_index+0x5e/0x80
[ 2232.462039][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2232.462039][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2232.462039][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2232.462039][   T10]      ipv6_add_addr+0x411/0x2000
[ 2232.462039][   T10]      inet6_addr_add+0x30e/0xa40
[ 2232.462039][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2232.462039][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2232.462039][   T10]      netlink_rcv_skb+0x130/0x360
[ 2232.462039][   T10]      netlink_unicast+0x449/0x710
[ 2232.462039][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2232.462039][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2232.462039][   T10]      ___sys_sendmsg+0xee/0x170
[ 2232.462039][   T10]      __sys_sendmsg+0xcd/0x170
[ 2232.462039][   T10]      do_syscall_64+0xc6/0x1e0
[ 2232.462039][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2232.462039][   T10] 
[ 2232.464039][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2232.464039][   T10]      netdev_get_by_index+0x5e/0x80
[ 2232.464039][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2232.464039][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2232.464039][   T10]      ip6_route_add+0x1c/0x140
[ 2232.464039][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2232.464039][   T10]      addrconf_add_dev+0xe2/0x170
[ 2232.464039][   T10]      inet6_addr_add+0x12f/0xa40
[ 2232.464039][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2232.464039][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2232.464039][   T10]      netlink_rcv_skb+0x130/0x360
[ 2232.464039][   T10]      netlink_unicast+0x449/0x710
[ 2232.464039][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2232.464039][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2232.464039][   T10]      ___sys_sendmsg+0xee/0x170
[ 2232.464039][   T10]      __sys_sendmsg+0xcd/0x170
[ 2232.464039][   T10]      do_syscall_64+0xc6/0x1e0
[ 2232.464039][   T10] 
[ 2232.466001][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2232.466001][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2232.466001][   T10]      ipv6_find_idev+0x102/0x170
[ 2232.466001][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2232.466001][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2232.466001][   T10]      netlink_rcv_skb+0x130/0x360
[ 2232.466001][   T10]      netlink_unicast+0x449/0x710
[ 2232.466001][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2232.466001][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2232.466001][   T10]      ___sys_sendmsg+0xee/0x170
[ 2232.466001][   T10]      __sys_sendmsg+0xcd/0x170
[ 2232.466001][   T10]      do_syscall_64+0xc6/0x1e0
[ 2232.466001][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2232.466001][   T10] 
[ 2232.467545][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2232.467545][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2232.467545][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2232.467545][   T10]      ipv6_find_idev+0x102/0x170
[ 2232.467545][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2232.467545][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2232.467545][   T10]      netlink_rcv_skb+0x130/0x360
[ 2232.467545][   T10]      netlink_unicast+0x449/0x710
[ 2232.467545][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2232.467545][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2232.467545][   T10]      ___sys_sendmsg+0xee/0x170
[ 2232.467545][   T10]      __sys_sendmsg+0xcd/0x170
[ 2232.467545][   T10]      do_syscall_64+0xc6/0x1e0
[ 2232.467545][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2232.467545][   T10] 
[ 2232.469239][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2232.469489][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2232.469489][   T10]      dst_init+0x84/0x4a0
[ 2232.469489][   T10]      dst_alloc+0x97/0x150
[ 2232.469489][   T10]      ip6_dst_alloc+0x23/0x90
[ 2232.469489][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2232.469489][   T10]      ip6_pol_route+0x56f/0x840
[ 2232.469489][   T10]      fib6_rule_lookup+0x456/0x630
[ 2232.469489][   T10]      ip6_route_input+0x59c/0xa50
[ 2232.469489][   T10]      ipv6_rcv+0x397/0x810
[ 2232.469489][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2232.469489][   T10]      process_backlog+0x101/0x620
[ 2232.469489][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2232.469489][   T10]      net_rx_action+0x495/0xbe0
[ 2232.469489][   T10]      __do_softirq+0x1b5/0x7f6
[ 2232.469489][   T10] 
[ 2232.471141][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2232.471141][   T10]      netdev_get_by_index+0x5e/0x80
[ 2232.471141][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2232.471141][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2232.471141][   T10]      ip6_route_add+0x1c/0x140
[ 2232.471141][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2232.471141][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2232.471141][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2232.471141][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2232.471141][   T10]      netlink_rcv_skb+0x130/0x360
[ 2232.471141][   T10]      netlink_unicast+0x449/0x710
[ 2232.471141][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2232.471141][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2232.471141][   T10]      ___sys_sendmsg+0xee/0x170
[ 2232.471141][   T10]      __sys_sendmsg+0xcd/0x170
[ 2232.471141][   T10]      do_syscall_64+0xc6/0x1e0
[ 2232.471141][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2232.471141][   T10] 
[ 2232.473135][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2232.473135][   T10]      netdev_get_by_index+0x5e/0x80
[ 2232.473135][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2232.473135][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2232.473135][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2232.473135][   T10]      ipv6_add_addr+0x411/0x2000
[ 2232.473135][   T10]      inet6_addr_add+0x30e/0xa40
[ 2232.473135][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2232.473135][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2232.473135][   T10]      netlink_rcv_skb+0x130/0x360
[ 2232.473135][   T10]      netlink_unicast+0x449/0x710
[ 2232.473135][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2232.473135][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2232.473135][   T10]      ___sys_sendmsg+0xee/0x170
[ 2232.473135][   T10]      __sys_sendmsg+0xcd/0x170
[ 2232.473135][   T10]      do_syscall_64+0xc6/0x1e0
[ 2232.473135][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2232.473135][   T10] 
[ 2232.475135][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2232.475135][   T10]      netdev_get_by_index+0x5e/0x80
[ 2232.475135][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2232.475135][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2232.475135][   T10]      ip6_route_add+0x1c/0x140
[ 2232.475135][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2232.475135][   T10]      addrconf_add_dev+0xe2/0x170
[ 2232.475135][   T10]      inet6_addr_add+0x12f/0xa40
[ 2232.475135][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2232.475135][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2232.475135][   T10]      netlink_rcv_skb+0x130/0x360
[ 2232.475135][   T10]      netlink_unicast+0x449/0x710
[ 2232.475135][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2232.475135][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2232.475135][   T10]      ___sys_sendmsg+0xee/0x170
[ 2232.475135][   T10]      __sys_sendmsg+0xcd/0x170
[ 2232.475135][   T10]      do_syscall_64+0xc6/0x1e0
[ 2232.475135][   T10] 
[ 2232.477108][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2232.477108][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2232.477108][   T10]      ipv6_find_idev+0x102/0x170
[ 2232.477108][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2232.477108][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2232.477108][   T10]      netlink_rcv_skb+0x130/0x360
[ 2232.477108][   T10]      netlink_unicast+0x449/0x710
[ 2232.477108][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2232.477108][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2232.477108][   T10]      ___sys_sendmsg+0xee/0x170
[ 2232.477108][   T10]      __sys_sendmsg+0xcd/0x170
[ 2232.477108][   T10]      do_syscall_64+0xc6/0x1e0
[ 2232.477108][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2232.477108][   T10] 
[ 2232.478648][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2232.478648][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2232.478648][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2232.478648][   T10]      ipv6_find_idev+0x102/0x170
[ 2232.478648][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2232.478648][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2232.478648][   T10]      netlink_rcv_skb+0x130/0x360
[ 2232.478648][   T10]      netlink_unicast+0x449/0x710
[ 2232.478648][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2232.478648][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2232.478648][   T10]      ___sys_sendmsg+0xee/0x170
[ 2232.478648][   T10]      __sys_sendmsg+0xcd/0x170
[ 2232.478648][   T10]      do_syscall_64+0xc6/0x1e0
[ 2232.478648][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2232.478648][   T10] 
[ 2242.553822][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2242.554311][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2242.554311][   T10]      dst_init+0x84/0x4a0
[ 2242.554311][   T10]      dst_alloc+0x97/0x150
[ 2242.554311][   T10]      ip6_dst_alloc+0x23/0x90
[ 2242.554311][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2242.554311][   T10]      ip6_pol_route+0x56f/0x840
[ 2242.554311][   T10]      fib6_rule_lookup+0x456/0x630
[ 2242.554311][   T10]      ip6_route_input+0x59c/0xa50
[ 2242.554311][   T10]      ipv6_rcv+0x397/0x810
[ 2242.554311][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2242.554311][   T10]      process_backlog+0x101/0x620
[ 2242.554311][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2242.554311][   T10]      net_rx_action+0x495/0xbe0
[ 2242.554311][   T10]      __do_softirq+0x1b5/0x7f6
[ 2242.554311][   T10] 
[ 2242.555987][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2242.555987][   T10]      netdev_get_by_index+0x5e/0x80
[ 2242.555987][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2242.555987][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2242.555987][   T10]      ip6_route_add+0x1c/0x140
[ 2242.555987][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2242.555987][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2242.555987][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2242.555987][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2242.555987][   T10]      netlink_rcv_skb+0x130/0x360
[ 2242.555987][   T10]      netlink_unicast+0x449/0x710
[ 2242.555987][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2242.555987][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2242.555987][   T10]      ___sys_sendmsg+0xee/0x170
[ 2242.555987][   T10]      __sys_sendmsg+0xcd/0x170
[ 2242.555987][   T10]      do_syscall_64+0xc6/0x1e0
[ 2242.555987][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2242.555987][   T10] 
[ 2242.558027][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2242.558027][   T10]      netdev_get_by_index+0x5e/0x80
[ 2242.558027][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2242.558027][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2242.558027][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2242.558027][   T10]      ipv6_add_addr+0x411/0x2000
[ 2242.558027][   T10]      inet6_addr_add+0x30e/0xa40
[ 2242.558027][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2242.558027][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2242.558027][   T10]      netlink_rcv_skb+0x130/0x360
[ 2242.558027][   T10]      netlink_unicast+0x449/0x710
[ 2242.558027][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2242.558027][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2242.558027][   T10]      ___sys_sendmsg+0xee/0x170
[ 2242.558027][   T10]      __sys_sendmsg+0xcd/0x170
[ 2242.558027][   T10]      do_syscall_64+0xc6/0x1e0
[ 2242.558027][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2242.558027][   T10] 
[ 2242.560032][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2242.560032][   T10]      netdev_get_by_index+0x5e/0x80
[ 2242.560032][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2242.560032][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2242.560032][   T10]      ip6_route_add+0x1c/0x140
[ 2242.560032][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2242.560032][   T10]      addrconf_add_dev+0xe2/0x170
[ 2242.560032][   T10]      inet6_addr_add+0x12f/0xa40
[ 2242.560032][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2242.560032][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2242.560032][   T10]      netlink_rcv_skb+0x130/0x360
[ 2242.560032][   T10]      netlink_unicast+0x449/0x710
[ 2242.560032][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2242.560032][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2242.560032][   T10]      ___sys_sendmsg+0xee/0x170
[ 2242.560032][   T10]      __sys_sendmsg+0xcd/0x170
[ 2242.560032][   T10]      do_syscall_64+0xc6/0x1e0
[ 2242.560032][   T10] 
[ 2242.562002][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2242.562002][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2242.562002][   T10]      ipv6_find_idev+0x102/0x170
[ 2242.562002][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2242.562002][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2242.562002][   T10]      netlink_rcv_skb+0x130/0x360
[ 2242.562002][   T10]      netlink_unicast+0x449/0x710
[ 2242.562002][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2242.562002][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2242.562002][   T10]      ___sys_sendmsg+0xee/0x170
[ 2242.562002][   T10]      __sys_sendmsg+0xcd/0x170
[ 2242.562002][   T10]      do_syscall_64+0xc6/0x1e0
[ 2242.562002][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2242.562002][   T10] 
[ 2242.563543][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2242.563543][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2242.563543][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2242.563543][   T10]      ipv6_find_idev+0x102/0x170
[ 2242.563543][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2242.563543][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2242.563543][   T10]      netlink_rcv_skb+0x130/0x360
[ 2242.563543][   T10]      netlink_unicast+0x449/0x710
[ 2242.563543][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2242.563543][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2242.563543][   T10]      ___sys_sendmsg+0xee/0x170
[ 2242.563543][   T10]      __sys_sendmsg+0xcd/0x170
[ 2242.563543][   T10]      do_syscall_64+0xc6/0x1e0
[ 2242.563543][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2242.563543][   T10] 
[ 2242.565234][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2242.565478][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2242.565478][   T10]      dst_init+0x84/0x4a0
[ 2242.565478][   T10]      dst_alloc+0x97/0x150
[ 2242.565478][   T10]      ip6_dst_alloc+0x23/0x90
[ 2242.565478][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2242.565478][   T10]      ip6_pol_route+0x56f/0x840
[ 2242.565478][   T10]      fib6_rule_lookup+0x456/0x630
[ 2242.565478][   T10]      ip6_route_input+0x59c/0xa50
[ 2242.565478][   T10]      ipv6_rcv+0x397/0x810
[ 2242.565478][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2242.565478][   T10]      process_backlog+0x101/0x620
[ 2242.565478][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2242.565478][   T10]      net_rx_action+0x495/0xbe0
[ 2242.565478][   T10]      __do_softirq+0x1b5/0x7f6
[ 2242.565478][   T10] 
[ 2242.567124][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2242.567124][   T10]      netdev_get_by_index+0x5e/0x80
[ 2242.567124][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2242.567124][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2242.567124][   T10]      ip6_route_add+0x1c/0x140
[ 2242.567124][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2242.567124][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2242.567124][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2242.567124][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2242.567124][   T10]      netlink_rcv_skb+0x130/0x360
[ 2242.567124][   T10]      netlink_unicast+0x449/0x710
[ 2242.567124][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2242.567124][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2242.567124][   T10]      ___sys_sendmsg+0xee/0x170
[ 2242.567124][   T10]      __sys_sendmsg+0xcd/0x170
[ 2242.567124][   T10]      do_syscall_64+0xc6/0x1e0
[ 2242.567124][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2242.567124][   T10] 
[ 2242.569136][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2242.569136][   T10]      netdev_get_by_index+0x5e/0x80
[ 2242.569136][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2242.569136][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2242.569136][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2242.569136][   T10]      ipv6_add_addr+0x411/0x2000
[ 2242.569136][   T10]      inet6_addr_add+0x30e/0xa40
[ 2242.569136][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2242.569136][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2242.569136][   T10]      netlink_rcv_skb+0x130/0x360
[ 2242.569136][   T10]      netlink_unicast+0x449/0x710
[ 2242.569136][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2242.569136][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2242.569136][   T10]      ___sys_sendmsg+0xee/0x170
[ 2242.569136][   T10]      __sys_sendmsg+0xcd/0x170
[ 2242.569136][   T10]      do_syscall_64+0xc6/0x1e0
[ 2242.569136][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2242.569136][   T10] 
[ 2242.571138][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2242.571138][   T10]      netdev_get_by_index+0x5e/0x80
[ 2242.571138][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2242.571138][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2242.571138][   T10]      ip6_route_add+0x1c/0x140
[ 2242.571138][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2242.571138][   T10]      addrconf_add_dev+0xe2/0x170
[ 2242.571138][   T10]      inet6_addr_add+0x12f/0xa40
[ 2242.571138][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2242.571138][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2242.571138][   T10]      netlink_rcv_skb+0x130/0x360
[ 2242.571138][   T10]      netlink_unicast+0x449/0x710
[ 2242.571138][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2242.571138][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2242.571138][   T10]      ___sys_sendmsg+0xee/0x170
[ 2242.571138][   T10]      __sys_sendmsg+0xcd/0x170
[ 2242.571138][   T10]      do_syscall_64+0xc6/0x1e0
[ 2242.571138][   T10] 
[ 2242.573102][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2242.573102][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2242.573102][   T10]      ipv6_find_idev+0x102/0x170
[ 2242.573102][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2242.573102][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2242.573102][   T10]      netlink_rcv_skb+0x130/0x360
[ 2242.573102][   T10]      netlink_unicast+0x449/0x710
[ 2242.573102][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2242.573102][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2242.573102][   T10]      ___sys_sendmsg+0xee/0x170
[ 2242.573102][   T10]      __sys_sendmsg+0xcd/0x170
[ 2242.573102][   T10]      do_syscall_64+0xc6/0x1e0
[ 2242.573102][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2242.573102][   T10] 
[ 2242.574637][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2242.574637][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2242.574637][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2242.574637][   T10]      ipv6_find_idev+0x102/0x170
[ 2242.574637][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2242.574637][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2242.574637][   T10]      netlink_rcv_skb+0x130/0x360
[ 2242.574637][   T10]      netlink_unicast+0x449/0x710
[ 2242.574637][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2242.574637][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2242.574637][   T10]      ___sys_sendmsg+0xee/0x170
[ 2242.574637][   T10]      __sys_sendmsg+0xcd/0x170
[ 2242.574637][   T10]      do_syscall_64+0xc6/0x1e0
[ 2242.574637][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2242.574637][   T10] 
[ 2252.817790][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2252.818282][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2252.818282][   T10]      dst_init+0x84/0x4a0
[ 2252.818282][   T10]      dst_alloc+0x97/0x150
[ 2252.818282][   T10]      ip6_dst_alloc+0x23/0x90
[ 2252.818282][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2252.818282][   T10]      ip6_pol_route+0x56f/0x840
[ 2252.818282][   T10]      fib6_rule_lookup+0x456/0x630
[ 2252.818282][   T10]      ip6_route_input+0x59c/0xa50
[ 2252.818282][   T10]      ipv6_rcv+0x397/0x810
[ 2252.818282][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2252.818282][   T10]      process_backlog+0x101/0x620
[ 2252.818282][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2252.818282][   T10]      net_rx_action+0x495/0xbe0
[ 2252.818282][   T10]      __do_softirq+0x1b5/0x7f6
[ 2252.818282][   T10] 
[ 2252.819983][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2252.819983][   T10]      netdev_get_by_index+0x5e/0x80
[ 2252.819983][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2252.819983][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2252.819983][   T10]      ip6_route_add+0x1c/0x140
[ 2252.819983][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2252.819983][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2252.819983][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2252.819983][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2252.819983][   T10]      netlink_rcv_skb+0x130/0x360
[ 2252.819983][   T10]      netlink_unicast+0x449/0x710
[ 2252.819983][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2252.819983][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2252.819983][   T10]      ___sys_sendmsg+0xee/0x170
[ 2252.819983][   T10]      __sys_sendmsg+0xcd/0x170
[ 2252.819983][   T10]      do_syscall_64+0xc6/0x1e0
[ 2252.819983][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2252.819983][   T10] 
[ 2252.822035][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2252.822035][   T10]      netdev_get_by_index+0x5e/0x80
[ 2252.822035][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2252.822035][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2252.822035][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2252.822035][   T10]      ipv6_add_addr+0x411/0x2000
[ 2252.822035][   T10]      inet6_addr_add+0x30e/0xa40
[ 2252.822035][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2252.822035][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2252.822035][   T10]      netlink_rcv_skb+0x130/0x360
[ 2252.822035][   T10]      netlink_unicast+0x449/0x710
[ 2252.822035][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2252.822035][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2252.822035][   T10]      ___sys_sendmsg+0xee/0x170
[ 2252.822035][   T10]      __sys_sendmsg+0xcd/0x170
[ 2252.822035][   T10]      do_syscall_64+0xc6/0x1e0
[ 2252.822035][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2252.822035][   T10] 
[ 2252.824052][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2252.824052][   T10]      netdev_get_by_index+0x5e/0x80
[ 2252.824052][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2252.824052][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2252.824052][   T10]      ip6_route_add+0x1c/0x140
[ 2252.824052][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2252.824052][   T10]      addrconf_add_dev+0xe2/0x170
[ 2252.824052][   T10]      inet6_addr_add+0x12f/0xa40
[ 2252.824052][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2252.824052][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2252.824052][   T10]      netlink_rcv_skb+0x130/0x360
[ 2252.824052][   T10]      netlink_unicast+0x449/0x710
[ 2252.824052][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2252.824052][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2252.824052][   T10]      ___sys_sendmsg+0xee/0x170
[ 2252.824052][   T10]      __sys_sendmsg+0xcd/0x170
[ 2252.824052][   T10]      do_syscall_64+0xc6/0x1e0
[ 2252.824052][   T10] 
[ 2252.826037][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2252.826037][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2252.826037][   T10]      ipv6_find_idev+0x102/0x170
[ 2252.826037][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2252.826037][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2252.826037][   T10]      netlink_rcv_skb+0x130/0x360
[ 2252.826037][   T10]      netlink_unicast+0x449/0x710
[ 2252.826037][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2252.826037][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2252.826037][   T10]      ___sys_sendmsg+0xee/0x170
[ 2252.826037][   T10]      __sys_sendmsg+0xcd/0x170
[ 2252.826037][   T10]      do_syscall_64+0xc6/0x1e0
[ 2252.826037][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2252.826037][   T10] 
[ 2252.827602][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2252.827602][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2252.827602][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2252.827602][   T10]      ipv6_find_idev+0x102/0x170
[ 2252.827602][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2252.827602][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2252.827602][   T10]      netlink_rcv_skb+0x130/0x360
[ 2252.827602][   T10]      netlink_unicast+0x449/0x710
[ 2252.827602][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2252.827602][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2252.827602][   T10]      ___sys_sendmsg+0xee/0x170
[ 2252.827602][   T10]      __sys_sendmsg+0xcd/0x170
[ 2252.827602][   T10]      do_syscall_64+0xc6/0x1e0
[ 2252.827602][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2252.827602][   T10] 
[ 2252.829319][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2252.829570][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2252.829570][   T10]      dst_init+0x84/0x4a0
[ 2252.829570][   T10]      dst_alloc+0x97/0x150
[ 2252.829570][   T10]      ip6_dst_alloc+0x23/0x90
[ 2252.829570][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2252.829570][   T10]      ip6_pol_route+0x56f/0x840
[ 2252.829570][   T10]      fib6_rule_lookup+0x456/0x630
[ 2252.829570][   T10]      ip6_route_input+0x59c/0xa50
[ 2252.829570][   T10]      ipv6_rcv+0x397/0x810
[ 2252.829570][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2252.829570][   T10]      process_backlog+0x101/0x620
[ 2252.829570][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2252.829570][   T10]      net_rx_action+0x495/0xbe0
[ 2252.829570][   T10]      __do_softirq+0x1b5/0x7f6
[ 2252.829570][   T10] 
[ 2252.831230][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2252.831230][   T10]      netdev_get_by_index+0x5e/0x80
[ 2252.831230][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2252.831230][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2252.831230][   T10]      ip6_route_add+0x1c/0x140
[ 2252.831230][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2252.831230][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2252.831230][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2252.831230][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2252.831230][   T10]      netlink_rcv_skb+0x130/0x360
[ 2252.831230][   T10]      netlink_unicast+0x449/0x710
[ 2252.831230][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2252.831230][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2252.831230][   T10]      ___sys_sendmsg+0xee/0x170
[ 2252.831230][   T10]      __sys_sendmsg+0xcd/0x170
[ 2252.831230][   T10]      do_syscall_64+0xc6/0x1e0
[ 2252.831230][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2252.831230][   T10] 
[ 2252.833251][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2252.833251][   T10]      netdev_get_by_index+0x5e/0x80
[ 2252.833251][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2252.833251][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2252.833251][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2252.833251][   T10]      ipv6_add_addr+0x411/0x2000
[ 2252.833251][   T10]      inet6_addr_add+0x30e/0xa40
[ 2252.833251][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2252.833251][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2252.833251][   T10]      netlink_rcv_skb+0x130/0x360
[ 2252.833251][   T10]      netlink_unicast+0x449/0x710
[ 2252.833251][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2252.833251][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2252.833251][   T10]      ___sys_sendmsg+0xee/0x170
[ 2252.833251][   T10]      __sys_sendmsg+0xcd/0x170
[ 2252.833251][   T10]      do_syscall_64+0xc6/0x1e0
[ 2252.833251][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2252.833251][   T10] 
[ 2252.835267][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2252.835267][   T10]      netdev_get_by_index+0x5e/0x80
[ 2252.835267][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2252.835267][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2252.835267][   T10]      ip6_route_add+0x1c/0x140
[ 2252.835267][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2252.835267][   T10]      addrconf_add_dev+0xe2/0x170
[ 2252.835267][   T10]      inet6_addr_add+0x12f/0xa40
[ 2252.835267][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2252.835267][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2252.835267][   T10]      netlink_rcv_skb+0x130/0x360
[ 2252.835267][   T10]      netlink_unicast+0x449/0x710
[ 2252.835267][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2252.835267][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2252.835267][   T10]      ___sys_sendmsg+0xee/0x170
[ 2252.835267][   T10]      __sys_sendmsg+0xcd/0x170
[ 2252.835267][   T10]      do_syscall_64+0xc6/0x1e0
[ 2252.835267][   T10] 
[ 2252.837264][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2252.837264][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2252.837264][   T10]      ipv6_find_idev+0x102/0x170
[ 2252.837264][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2252.837264][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2252.837264][   T10]      netlink_rcv_skb+0x130/0x360
[ 2252.837264][   T10]      netlink_unicast+0x449/0x710
[ 2252.837264][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2252.837264][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2252.837264][   T10]      ___sys_sendmsg+0xee/0x170
[ 2252.837264][   T10]      __sys_sendmsg+0xcd/0x170
[ 2252.837264][   T10]      do_syscall_64+0xc6/0x1e0
[ 2252.837264][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2252.837264][   T10] 
[ 2252.838823][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2252.838823][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2252.838823][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2252.838823][   T10]      ipv6_find_idev+0x102/0x170
[ 2252.838823][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2252.838823][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2252.838823][   T10]      netlink_rcv_skb+0x130/0x360
[ 2252.838823][   T10]      netlink_unicast+0x449/0x710
[ 2252.838823][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2252.838823][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2252.838823][   T10]      ___sys_sendmsg+0xee/0x170
[ 2252.838823][   T10]      __sys_sendmsg+0xcd/0x170
[ 2252.838823][   T10]      do_syscall_64+0xc6/0x1e0
[ 2252.838823][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2252.838823][   T10] 
[ 2263.081719][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2263.082205][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2263.082205][   T10]      dst_init+0x84/0x4a0
[ 2263.082205][   T10]      dst_alloc+0x97/0x150
[ 2263.082205][   T10]      ip6_dst_alloc+0x23/0x90
[ 2263.082205][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2263.082205][   T10]      ip6_pol_route+0x56f/0x840
[ 2263.082205][   T10]      fib6_rule_lookup+0x456/0x630
[ 2263.082205][   T10]      ip6_route_input+0x59c/0xa50
[ 2263.082205][   T10]      ipv6_rcv+0x397/0x810
[ 2263.082205][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2263.082205][   T10]      process_backlog+0x101/0x620
[ 2263.082205][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2263.082205][   T10]      net_rx_action+0x495/0xbe0
[ 2263.082205][   T10]      __do_softirq+0x1b5/0x7f6
[ 2263.082205][   T10] 
[ 2263.083904][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2263.083904][   T10]      netdev_get_by_index+0x5e/0x80
[ 2263.083904][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2263.083904][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2263.083904][   T10]      ip6_route_add+0x1c/0x140
[ 2263.083904][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2263.083904][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2263.083904][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2263.083904][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2263.083904][   T10]      netlink_rcv_skb+0x130/0x360
[ 2263.083904][   T10]      netlink_unicast+0x449/0x710
[ 2263.083904][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2263.083904][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2263.083904][   T10]      ___sys_sendmsg+0xee/0x170
[ 2263.083904][   T10]      __sys_sendmsg+0xcd/0x170
[ 2263.083904][   T10]      do_syscall_64+0xc6/0x1e0
[ 2263.083904][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2263.083904][   T10] 
[ 2263.085923][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2263.085923][   T10]      netdev_get_by_index+0x5e/0x80
[ 2263.085923][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2263.085923][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2263.085923][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2263.085923][   T10]      ipv6_add_addr+0x411/0x2000
[ 2263.085923][   T10]      inet6_addr_add+0x30e/0xa40
[ 2263.085923][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2263.085923][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2263.085923][   T10]      netlink_rcv_skb+0x130/0x360
[ 2263.085923][   T10]      netlink_unicast+0x449/0x710
[ 2263.085923][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2263.085923][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2263.085923][   T10]      ___sys_sendmsg+0xee/0x170
[ 2263.085923][   T10]      __sys_sendmsg+0xcd/0x170
[ 2263.085923][   T10]      do_syscall_64+0xc6/0x1e0
[ 2263.085923][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2263.085923][   T10] 
[ 2263.087943][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2263.087943][   T10]      netdev_get_by_index+0x5e/0x80
[ 2263.087943][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2263.087943][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2263.087943][   T10]      ip6_route_add+0x1c/0x140
[ 2263.087943][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2263.087943][   T10]      addrconf_add_dev+0xe2/0x170
[ 2263.087943][   T10]      inet6_addr_add+0x12f/0xa40
[ 2263.087943][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2263.087943][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2263.087943][   T10]      netlink_rcv_skb+0x130/0x360
[ 2263.087943][   T10]      netlink_unicast+0x449/0x710
[ 2263.087943][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2263.087943][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2263.087943][   T10]      ___sys_sendmsg+0xee/0x170
[ 2263.087943][   T10]      __sys_sendmsg+0xcd/0x170
[ 2263.087943][   T10]      do_syscall_64+0xc6/0x1e0
[ 2263.087943][   T10] 
[ 2263.089925][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2263.089925][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2263.089925][   T10]      ipv6_find_idev+0x102/0x170
[ 2263.089925][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2263.089925][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2263.089925][   T10]      netlink_rcv_skb+0x130/0x360
[ 2263.089925][   T10]      netlink_unicast+0x449/0x710
[ 2263.089925][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2263.089925][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2263.089925][   T10]      ___sys_sendmsg+0xee/0x170
[ 2263.089925][   T10]      __sys_sendmsg+0xcd/0x170
[ 2263.089925][   T10]      do_syscall_64+0xc6/0x1e0
[ 2263.089925][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2263.089925][   T10] 
[ 2263.091486][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2263.091486][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2263.091486][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2263.091486][   T10]      ipv6_find_idev+0x102/0x170
[ 2263.091486][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2263.091486][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2263.091486][   T10]      netlink_rcv_skb+0x130/0x360
[ 2263.091486][   T10]      netlink_unicast+0x449/0x710
[ 2263.091486][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2263.091486][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2263.091486][   T10]      ___sys_sendmsg+0xee/0x170
[ 2263.091486][   T10]      __sys_sendmsg+0xcd/0x170
[ 2263.091486][   T10]      do_syscall_64+0xc6/0x1e0
[ 2263.091486][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2263.091486][   T10] 
[ 2263.093212][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2263.093459][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2263.093459][   T10]      dst_init+0x84/0x4a0
[ 2263.093459][   T10]      dst_alloc+0x97/0x150
[ 2263.093459][   T10]      ip6_dst_alloc+0x23/0x90
[ 2263.093459][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2263.093459][   T10]      ip6_pol_route+0x56f/0x840
[ 2263.093459][   T10]      fib6_rule_lookup+0x456/0x630
[ 2263.093459][   T10]      ip6_route_input+0x59c/0xa50
[ 2263.093459][   T10]      ipv6_rcv+0x397/0x810
[ 2263.093459][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2263.093459][   T10]      process_backlog+0x101/0x620
[ 2263.093459][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2263.093459][   T10]      net_rx_action+0x495/0xbe0
[ 2263.093459][   T10]      __do_softirq+0x1b5/0x7f6
[ 2263.093459][   T10] 
[ 2263.095118][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2263.095118][   T10]      netdev_get_by_index+0x5e/0x80
[ 2263.095118][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2263.095118][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2263.095118][   T10]      ip6_route_add+0x1c/0x140
[ 2263.095118][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2263.095118][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2263.095118][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2263.095118][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2263.095118][   T10]      netlink_rcv_skb+0x130/0x360
[ 2263.095118][   T10]      netlink_unicast+0x449/0x710
[ 2263.095118][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2263.095118][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2263.095118][   T10]      ___sys_sendmsg+0xee/0x170
[ 2263.095118][   T10]      __sys_sendmsg+0xcd/0x170
[ 2263.095118][   T10]      do_syscall_64+0xc6/0x1e0
[ 2263.095118][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2263.095118][   T10] 
[ 2263.097694][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2263.097694][   T10]      netdev_get_by_index+0x5e/0x80
[ 2263.097694][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2263.097694][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2263.097694][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2263.097694][   T10]      ipv6_add_addr+0x411/0x2000
[ 2263.097694][   T10]      inet6_addr_add+0x30e/0xa40
[ 2263.097694][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2263.097694][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2263.097694][   T10]      netlink_rcv_skb+0x130/0x360
[ 2263.097694][   T10]      netlink_unicast+0x449/0x710
[ 2263.097694][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2263.097694][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2263.097694][   T10]      ___sys_sendmsg+0xee/0x170
[ 2263.097694][   T10]      __sys_sendmsg+0xcd/0x170
[ 2263.097694][   T10]      do_syscall_64+0xc6/0x1e0
[ 2263.097694][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2263.097694][   T10] 
[ 2263.099856][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2263.099856][   T10]      netdev_get_by_index+0x5e/0x80
[ 2263.099856][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2263.099856][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2263.099856][   T10]      ip6_route_add+0x1c/0x140
[ 2263.099856][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2263.099856][   T10]      addrconf_add_dev+0xe2/0x170
[ 2263.099856][   T10]      inet6_addr_add+0x12f/0xa40
[ 2263.099856][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2263.099856][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2263.099856][   T10]      netlink_rcv_skb+0x130/0x360
[ 2263.099856][   T10]      netlink_unicast+0x449/0x710
[ 2263.099856][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2263.099856][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2263.099856][   T10]      ___sys_sendmsg+0xee/0x170
[ 2263.099856][   T10]      __sys_sendmsg+0xcd/0x170
[ 2263.099856][   T10]      do_syscall_64+0xc6/0x1e0
[ 2263.099856][   T10] 
[ 2263.101949][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2263.101949][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2263.101949][   T10]      ipv6_find_idev+0x102/0x170
[ 2263.101949][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2263.101949][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2263.101949][   T10]      netlink_rcv_skb+0x130/0x360
[ 2263.101949][   T10]      netlink_unicast+0x449/0x710
[ 2263.101949][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2263.101949][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2263.101949][   T10]      ___sys_sendmsg+0xee/0x170
[ 2263.101949][   T10]      __sys_sendmsg+0xcd/0x170
[ 2263.101949][   T10]      do_syscall_64+0xc6/0x1e0
[ 2263.101949][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2263.101949][   T10] 
[ 2263.103998][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2263.103998][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2263.103998][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2263.103998][   T10]      ipv6_find_idev+0x102/0x170
[ 2263.103998][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2263.103998][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2263.103998][   T10]      netlink_rcv_skb+0x130/0x360
[ 2263.103998][   T10]      netlink_unicast+0x449/0x710
[ 2263.103998][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2263.103998][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2263.103998][   T10]      ___sys_sendmsg+0xee/0x170
[ 2263.103998][   T10]      __sys_sendmsg+0xcd/0x170
[ 2263.103998][   T10]      do_syscall_64+0xc6/0x1e0
[ 2263.103998][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2263.103998][   T10] 
[ 2273.345796][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2273.346275][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2273.346275][   T10]      dst_init+0x84/0x4a0
[ 2273.346275][   T10]      dst_alloc+0x97/0x150
[ 2273.346275][   T10]      ip6_dst_alloc+0x23/0x90
[ 2273.346275][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2273.346275][   T10]      ip6_pol_route+0x56f/0x840
[ 2273.346275][   T10]      fib6_rule_lookup+0x456/0x630
[ 2273.346275][   T10]      ip6_route_input+0x59c/0xa50
[ 2273.346275][   T10]      ipv6_rcv+0x397/0x810
[ 2273.346275][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2273.346275][   T10]      process_backlog+0x101/0x620
[ 2273.346275][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2273.346275][   T10]      net_rx_action+0x495/0xbe0
[ 2273.346275][   T10]      __do_softirq+0x1b5/0x7f6
[ 2273.346275][   T10] 
[ 2273.348009][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2273.348009][   T10]      netdev_get_by_index+0x5e/0x80
[ 2273.348009][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2273.348009][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2273.348009][   T10]      ip6_route_add+0x1c/0x140
[ 2273.348009][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2273.348009][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2273.348009][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2273.348009][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2273.348009][   T10]      netlink_rcv_skb+0x130/0x360
[ 2273.348009][   T10]      netlink_unicast+0x449/0x710
[ 2273.348009][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2273.348009][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2273.348009][   T10]      ___sys_sendmsg+0xee/0x170
[ 2273.348009][   T10]      __sys_sendmsg+0xcd/0x170
[ 2273.348009][   T10]      do_syscall_64+0xc6/0x1e0
[ 2273.348009][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2273.348009][   T10] 
[ 2273.350083][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2273.350083][   T10]      netdev_get_by_index+0x5e/0x80
[ 2273.350083][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2273.350083][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2273.350083][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2273.350083][   T10]      ipv6_add_addr+0x411/0x2000
[ 2273.350083][   T10]      inet6_addr_add+0x30e/0xa40
[ 2273.350083][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2273.350083][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2273.350083][   T10]      netlink_rcv_skb+0x130/0x360
[ 2273.350083][   T10]      netlink_unicast+0x449/0x710
[ 2273.350083][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2273.350083][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2273.350083][   T10]      ___sys_sendmsg+0xee/0x170
[ 2273.350083][   T10]      __sys_sendmsg+0xcd/0x170
[ 2273.350083][   T10]      do_syscall_64+0xc6/0x1e0
[ 2273.350083][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2273.350083][   T10] 
[ 2273.352157][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2273.352157][   T10]      netdev_get_by_index+0x5e/0x80
[ 2273.352157][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2273.352157][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2273.352157][   T10]      ip6_route_add+0x1c/0x140
[ 2273.352157][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2273.352157][   T10]      addrconf_add_dev+0xe2/0x170
[ 2273.352157][   T10]      inet6_addr_add+0x12f/0xa40
[ 2273.352157][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2273.352157][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2273.352157][   T10]      netlink_rcv_skb+0x130/0x360
[ 2273.352157][   T10]      netlink_unicast+0x449/0x710
[ 2273.352157][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2273.352157][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2273.352157][   T10]      ___sys_sendmsg+0xee/0x170
[ 2273.352157][   T10]      __sys_sendmsg+0xcd/0x170
[ 2273.352157][   T10]      do_syscall_64+0xc6/0x1e0
[ 2273.352157][   T10] 
[ 2273.354192][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2273.354192][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2273.354192][   T10]      ipv6_find_idev+0x102/0x170
[ 2273.354192][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2273.354192][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2273.354192][   T10]      netlink_rcv_skb+0x130/0x360
[ 2273.354192][   T10]      netlink_unicast+0x449/0x710
[ 2273.354192][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2273.354192][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2273.354192][   T10]      ___sys_sendmsg+0xee/0x170
[ 2273.354192][   T10]      __sys_sendmsg+0xcd/0x170
[ 2273.354192][   T10]      do_syscall_64+0xc6/0x1e0
[ 2273.354192][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2273.354192][   T10] 
[ 2273.355785][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2273.355785][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2273.355785][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2273.355785][   T10]      ipv6_find_idev+0x102/0x170
[ 2273.355785][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2273.355785][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2273.355785][   T10]      netlink_rcv_skb+0x130/0x360
[ 2273.355785][   T10]      netlink_unicast+0x449/0x710
[ 2273.355785][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2273.355785][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2273.355785][   T10]      ___sys_sendmsg+0xee/0x170
[ 2273.355785][   T10]      __sys_sendmsg+0xcd/0x170
[ 2273.355785][   T10]      do_syscall_64+0xc6/0x1e0
[ 2273.355785][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2273.355785][   T10] 
[ 2273.357538][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2273.357815][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2273.357815][   T10]      dst_init+0x84/0x4a0
[ 2273.357815][   T10]      dst_alloc+0x97/0x150
[ 2273.357815][   T10]      ip6_dst_alloc+0x23/0x90
[ 2273.357815][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2273.357815][   T10]      ip6_pol_route+0x56f/0x840
[ 2273.357815][   T10]      fib6_rule_lookup+0x456/0x630
[ 2273.357815][   T10]      ip6_route_input+0x59c/0xa50
[ 2273.357815][   T10]      ipv6_rcv+0x397/0x810
[ 2273.357815][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2273.357815][   T10]      process_backlog+0x101/0x620
[ 2273.357815][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2273.357815][   T10]      net_rx_action+0x495/0xbe0
[ 2273.357815][   T10]      __do_softirq+0x1b5/0x7f6
[ 2273.357815][   T10] 
[ 2273.359509][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2273.359509][   T10]      netdev_get_by_index+0x5e/0x80
[ 2273.359509][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2273.359509][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2273.359509][   T10]      ip6_route_add+0x1c/0x140
[ 2273.359509][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2273.359509][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2273.359509][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2273.359509][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2273.359509][   T10]      netlink_rcv_skb+0x130/0x360
[ 2273.359509][   T10]      netlink_unicast+0x449/0x710
[ 2273.359509][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2273.359509][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2273.359509][   T10]      ___sys_sendmsg+0xee/0x170
[ 2273.359509][   T10]      __sys_sendmsg+0xcd/0x170
[ 2273.359509][   T10]      do_syscall_64+0xc6/0x1e0
[ 2273.359509][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2273.359509][   T10] 
[ 2273.361570][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2273.361570][   T10]      netdev_get_by_index+0x5e/0x80
[ 2273.361570][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2273.361570][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2273.361570][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2273.361570][   T10]      ipv6_add_addr+0x411/0x2000
[ 2273.361570][   T10]      inet6_addr_add+0x30e/0xa40
[ 2273.361570][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2273.361570][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2273.361570][   T10]      netlink_rcv_skb+0x130/0x360
[ 2273.361570][   T10]      netlink_unicast+0x449/0x710
[ 2273.361570][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2273.361570][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2273.361570][   T10]      ___sys_sendmsg+0xee/0x170
[ 2273.361570][   T10]      __sys_sendmsg+0xcd/0x170
[ 2273.361570][   T10]      do_syscall_64+0xc6/0x1e0
[ 2273.361570][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2273.361570][   T10] 
[ 2273.363639][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2273.363639][   T10]      netdev_get_by_index+0x5e/0x80
[ 2273.363639][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2273.363639][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2273.363639][   T10]      ip6_route_add+0x1c/0x140
[ 2273.363639][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2273.363639][   T10]      addrconf_add_dev+0xe2/0x170
[ 2273.363639][   T10]      inet6_addr_add+0x12f/0xa40
[ 2273.363639][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2273.363639][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2273.363639][   T10]      netlink_rcv_skb+0x130/0x360
[ 2273.363639][   T10]      netlink_unicast+0x449/0x710
[ 2273.363639][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2273.363639][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2273.363639][   T10]      ___sys_sendmsg+0xee/0x170
[ 2273.363639][   T10]      __sys_sendmsg+0xcd/0x170
[ 2273.363639][   T10]      do_syscall_64+0xc6/0x1e0
[ 2273.363639][   T10] 
[ 2273.365654][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2273.365654][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2273.365654][   T10]      ipv6_find_idev+0x102/0x170
[ 2273.365654][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2273.365654][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2273.365654][   T10]      netlink_rcv_skb+0x130/0x360
[ 2273.365654][   T10]      netlink_unicast+0x449/0x710
[ 2273.365654][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2273.365654][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2273.365654][   T10]      ___sys_sendmsg+0xee/0x170
[ 2273.365654][   T10]      __sys_sendmsg+0xcd/0x170
[ 2273.365654][   T10]      do_syscall_64+0xc6/0x1e0
[ 2273.365654][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2273.365654][   T10] 
[ 2273.367237][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2273.367237][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2273.367237][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2273.367237][   T10]      ipv6_find_idev+0x102/0x170
[ 2273.367237][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2273.367237][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2273.367237][   T10]      netlink_rcv_skb+0x130/0x360
[ 2273.367237][   T10]      netlink_unicast+0x449/0x710
[ 2273.367237][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2273.367237][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2273.367237][   T10]      ___sys_sendmsg+0xee/0x170
[ 2273.367237][   T10]      __sys_sendmsg+0xcd/0x170
[ 2273.367237][   T10]      do_syscall_64+0xc6/0x1e0
[ 2273.367237][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2273.367237][   T10] 
[ 2283.609782][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2283.610249][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2283.610249][   T10]      dst_init+0x84/0x4a0
[ 2283.610249][   T10]      dst_alloc+0x97/0x150
[ 2283.610249][   T10]      ip6_dst_alloc+0x23/0x90
[ 2283.610249][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2283.610249][   T10]      ip6_pol_route+0x56f/0x840
[ 2283.610249][   T10]      fib6_rule_lookup+0x456/0x630
[ 2283.610249][   T10]      ip6_route_input+0x59c/0xa50
[ 2283.610249][   T10]      ipv6_rcv+0x397/0x810
[ 2283.610249][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2283.610249][   T10]      process_backlog+0x101/0x620
[ 2283.610249][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2283.610249][   T10]      net_rx_action+0x495/0xbe0
[ 2283.610249][   T10]      __do_softirq+0x1b5/0x7f6
[ 2283.610249][   T10] 
[ 2283.611986][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2283.611986][   T10]      netdev_get_by_index+0x5e/0x80
[ 2283.611986][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2283.611986][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2283.611986][   T10]      ip6_route_add+0x1c/0x140
[ 2283.611986][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2283.611986][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2283.611986][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2283.611986][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2283.611986][   T10]      netlink_rcv_skb+0x130/0x360
[ 2283.611986][   T10]      netlink_unicast+0x449/0x710
[ 2283.611986][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2283.611986][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2283.611986][   T10]      ___sys_sendmsg+0xee/0x170
[ 2283.611986][   T10]      __sys_sendmsg+0xcd/0x170
[ 2283.611986][   T10]      do_syscall_64+0xc6/0x1e0
[ 2283.611986][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2283.611986][   T10] 
[ 2283.614048][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2283.614048][   T10]      netdev_get_by_index+0x5e/0x80
[ 2283.614048][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2283.614048][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2283.614048][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2283.614048][   T10]      ipv6_add_addr+0x411/0x2000
[ 2283.614048][   T10]      inet6_addr_add+0x30e/0xa40
[ 2283.614048][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2283.614048][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2283.614048][   T10]      netlink_rcv_skb+0x130/0x360
[ 2283.614048][   T10]      netlink_unicast+0x449/0x710
[ 2283.614048][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2283.614048][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2283.614048][   T10]      ___sys_sendmsg+0xee/0x170
[ 2283.614048][   T10]      __sys_sendmsg+0xcd/0x170
[ 2283.614048][   T10]      do_syscall_64+0xc6/0x1e0
[ 2283.614048][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2283.614048][   T10] 
[ 2283.616102][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2283.616102][   T10]      netdev_get_by_index+0x5e/0x80
[ 2283.616102][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2283.616102][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2283.616102][   T10]      ip6_route_add+0x1c/0x140
[ 2283.616102][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2283.616102][   T10]      addrconf_add_dev+0xe2/0x170
[ 2283.616102][   T10]      inet6_addr_add+0x12f/0xa40
[ 2283.616102][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2283.616102][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2283.616102][   T10]      netlink_rcv_skb+0x130/0x360
[ 2283.616102][   T10]      netlink_unicast+0x449/0x710
[ 2283.616102][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2283.616102][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2283.616102][   T10]      ___sys_sendmsg+0xee/0x170
[ 2283.616102][   T10]      __sys_sendmsg+0xcd/0x170
[ 2283.616102][   T10]      do_syscall_64+0xc6/0x1e0
[ 2283.616102][   T10] 
[ 2283.618148][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2283.618148][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2283.618148][   T10]      ipv6_find_idev+0x102/0x170
[ 2283.618148][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2283.618148][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2283.618148][   T10]      netlink_rcv_skb+0x130/0x360
[ 2283.618148][   T10]      netlink_unicast+0x449/0x710
[ 2283.618148][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2283.618148][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2283.618148][   T10]      ___sys_sendmsg+0xee/0x170
[ 2283.618148][   T10]      __sys_sendmsg+0xcd/0x170
[ 2283.618148][   T10]      do_syscall_64+0xc6/0x1e0
[ 2283.618148][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2283.618148][   T10] 
[ 2283.619735][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2283.619735][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2283.619735][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2283.619735][   T10]      ipv6_find_idev+0x102/0x170
[ 2283.619735][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2283.619735][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2283.619735][   T10]      netlink_rcv_skb+0x130/0x360
[ 2283.619735][   T10]      netlink_unicast+0x449/0x710
[ 2283.619735][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2283.619735][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2283.619735][   T10]      ___sys_sendmsg+0xee/0x170
[ 2283.619735][   T10]      __sys_sendmsg+0xcd/0x170
[ 2283.619735][   T10]      do_syscall_64+0xc6/0x1e0
[ 2283.619735][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2283.619735][   T10] 
[ 2283.621470][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2283.621742][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2283.621742][   T10]      dst_init+0x84/0x4a0
[ 2283.621742][   T10]      dst_alloc+0x97/0x150
[ 2283.621742][   T10]      ip6_dst_alloc+0x23/0x90
[ 2283.621742][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2283.621742][   T10]      ip6_pol_route+0x56f/0x840
[ 2283.621742][   T10]      fib6_rule_lookup+0x456/0x630
[ 2283.621742][   T10]      ip6_route_input+0x59c/0xa50
[ 2283.621742][   T10]      ipv6_rcv+0x397/0x810
[ 2283.621742][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2283.621742][   T10]      process_backlog+0x101/0x620
[ 2283.621742][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2283.621742][   T10]      net_rx_action+0x495/0xbe0
[ 2283.621742][   T10]      __do_softirq+0x1b5/0x7f6
[ 2283.621742][   T10] 
[ 2283.623420][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2283.623420][   T10]      netdev_get_by_index+0x5e/0x80
[ 2283.623420][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2283.623420][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2283.623420][   T10]      ip6_route_add+0x1c/0x140
[ 2283.623420][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2283.623420][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2283.623420][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2283.623420][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2283.623420][   T10]      netlink_rcv_skb+0x130/0x360
[ 2283.623420][   T10]      netlink_unicast+0x449/0x710
[ 2283.623420][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2283.623420][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2283.623420][   T10]      ___sys_sendmsg+0xee/0x170
[ 2283.623420][   T10]      __sys_sendmsg+0xcd/0x170
[ 2283.623420][   T10]      do_syscall_64+0xc6/0x1e0
[ 2283.623420][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2283.623420][   T10] 
[ 2283.625468][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2283.625468][   T10]      netdev_get_by_index+0x5e/0x80
[ 2283.625468][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2283.625468][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2283.625468][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2283.625468][   T10]      ipv6_add_addr+0x411/0x2000
[ 2283.625468][   T10]      inet6_addr_add+0x30e/0xa40
[ 2283.625468][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2283.625468][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2283.625468][   T10]      netlink_rcv_skb+0x130/0x360
[ 2283.625468][   T10]      netlink_unicast+0x449/0x710
[ 2283.625468][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2283.625468][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2283.625468][   T10]      ___sys_sendmsg+0xee/0x170
[ 2283.625468][   T10]      __sys_sendmsg+0xcd/0x170
[ 2283.625468][   T10]      do_syscall_64+0xc6/0x1e0
[ 2283.625468][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2283.625468][   T10] 
[ 2283.627527][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2283.627527][   T10]      netdev_get_by_index+0x5e/0x80
[ 2283.627527][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2283.627527][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2283.627527][   T10]      ip6_route_add+0x1c/0x140
[ 2283.627527][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2283.627527][   T10]      addrconf_add_dev+0xe2/0x170
[ 2283.627527][   T10]      inet6_addr_add+0x12f/0xa40
[ 2283.627527][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2283.627527][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2283.627527][   T10]      netlink_rcv_skb+0x130/0x360
[ 2283.627527][   T10]      netlink_unicast+0x449/0x710
[ 2283.627527][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2283.627527][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2283.627527][   T10]      ___sys_sendmsg+0xee/0x170
[ 2283.627527][   T10]      __sys_sendmsg+0xcd/0x170
[ 2283.627527][   T10]      do_syscall_64+0xc6/0x1e0
[ 2283.627527][   T10] 
[ 2283.629536][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2283.629536][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2283.629536][   T10]      ipv6_find_idev+0x102/0x170
[ 2283.629536][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2283.629536][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2283.629536][   T10]      netlink_rcv_skb+0x130/0x360
[ 2283.629536][   T10]      netlink_unicast+0x449/0x710
[ 2283.629536][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2283.629536][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2283.629536][   T10]      ___sys_sendmsg+0xee/0x170
[ 2283.629536][   T10]      __sys_sendmsg+0xcd/0x170
[ 2283.629536][   T10]      do_syscall_64+0xc6/0x1e0
[ 2283.629536][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2283.629536][   T10] 
[ 2283.631118][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2283.631118][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2283.631118][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2283.631118][   T10]      ipv6_find_idev+0x102/0x170
[ 2283.631118][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2283.631118][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2283.631118][   T10]      netlink_rcv_skb+0x130/0x360
[ 2283.631118][   T10]      netlink_unicast+0x449/0x710
[ 2283.631118][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2283.631118][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2283.631118][   T10]      ___sys_sendmsg+0xee/0x170
[ 2283.631118][   T10]      __sys_sendmsg+0xcd/0x170
[ 2283.631118][   T10]      do_syscall_64+0xc6/0x1e0
[ 2283.631118][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2283.631118][   T10] 
[ 2293.873778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2293.874254][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2293.874254][   T10]      dst_init+0x84/0x4a0
[ 2293.874254][   T10]      dst_alloc+0x97/0x150
[ 2293.874254][   T10]      ip6_dst_alloc+0x23/0x90
[ 2293.874254][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2293.874254][   T10]      ip6_pol_route+0x56f/0x840
[ 2293.874254][   T10]      fib6_rule_lookup+0x456/0x630
[ 2293.874254][   T10]      ip6_route_input+0x59c/0xa50
[ 2293.874254][   T10]      ipv6_rcv+0x397/0x810
[ 2293.874254][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2293.874254][   T10]      process_backlog+0x101/0x620
[ 2293.874254][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2293.874254][   T10]      net_rx_action+0x495/0xbe0
[ 2293.874254][   T10]      __do_softirq+0x1b5/0x7f6
[ 2293.874254][   T10] 
[ 2293.875975][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2293.875975][   T10]      netdev_get_by_index+0x5e/0x80
[ 2293.875975][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2293.875975][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2293.875975][   T10]      ip6_route_add+0x1c/0x140
[ 2293.875975][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2293.875975][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2293.875975][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2293.875975][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2293.875975][   T10]      netlink_rcv_skb+0x130/0x360
[ 2293.875975][   T10]      netlink_unicast+0x449/0x710
[ 2293.875975][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2293.875975][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2293.875975][   T10]      ___sys_sendmsg+0xee/0x170
[ 2293.875975][   T10]      __sys_sendmsg+0xcd/0x170
[ 2293.875975][   T10]      do_syscall_64+0xc6/0x1e0
[ 2293.875975][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2293.875975][   T10] 
[ 2293.878037][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2293.878037][   T10]      netdev_get_by_index+0x5e/0x80
[ 2293.878037][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2293.878037][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2293.878037][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2293.878037][   T10]      ipv6_add_addr+0x411/0x2000
[ 2293.878037][   T10]      inet6_addr_add+0x30e/0xa40
[ 2293.878037][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2293.878037][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2293.878037][   T10]      netlink_rcv_skb+0x130/0x360
[ 2293.878037][   T10]      netlink_unicast+0x449/0x710
[ 2293.878037][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2293.878037][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2293.878037][   T10]      ___sys_sendmsg+0xee/0x170
[ 2293.878037][   T10]      __sys_sendmsg+0xcd/0x170
[ 2293.878037][   T10]      do_syscall_64+0xc6/0x1e0
[ 2293.878037][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2293.878037][   T10] 
[ 2293.880099][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2293.880099][   T10]      netdev_get_by_index+0x5e/0x80
[ 2293.880099][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2293.880099][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2293.880099][   T10]      ip6_route_add+0x1c/0x140
[ 2293.880099][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2293.880099][   T10]      addrconf_add_dev+0xe2/0x170
[ 2293.880099][   T10]      inet6_addr_add+0x12f/0xa40
[ 2293.880099][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2293.880099][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2293.880099][   T10]      netlink_rcv_skb+0x130/0x360
[ 2293.880099][   T10]      netlink_unicast+0x449/0x710
[ 2293.880099][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2293.880099][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2293.880099][   T10]      ___sys_sendmsg+0xee/0x170
[ 2293.880099][   T10]      __sys_sendmsg+0xcd/0x170
[ 2293.880099][   T10]      do_syscall_64+0xc6/0x1e0
[ 2293.880099][   T10] 
[ 2293.882129][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2293.882129][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2293.882129][   T10]      ipv6_find_idev+0x102/0x170
[ 2293.882129][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2293.882129][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2293.882129][   T10]      netlink_rcv_skb+0x130/0x360
[ 2293.882129][   T10]      netlink_unicast+0x449/0x710
[ 2293.882129][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2293.882129][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2293.882129][   T10]      ___sys_sendmsg+0xee/0x170
[ 2293.882129][   T10]      __sys_sendmsg+0xcd/0x170
[ 2293.882129][   T10]      do_syscall_64+0xc6/0x1e0
[ 2293.882129][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2293.882129][   T10] 
[ 2293.883717][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2293.883717][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2293.883717][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2293.883717][   T10]      ipv6_find_idev+0x102/0x170
[ 2293.883717][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2293.883717][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2293.883717][   T10]      netlink_rcv_skb+0x130/0x360
[ 2293.883717][   T10]      netlink_unicast+0x449/0x710
[ 2293.883717][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2293.883717][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2293.883717][   T10]      ___sys_sendmsg+0xee/0x170
[ 2293.883717][   T10]      __sys_sendmsg+0xcd/0x170
[ 2293.883717][   T10]      do_syscall_64+0xc6/0x1e0
[ 2293.883717][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2293.883717][   T10] 
[ 2293.885462][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2293.885718][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2293.885718][   T10]      dst_init+0x84/0x4a0
[ 2293.885718][   T10]      dst_alloc+0x97/0x150
[ 2293.885718][   T10]      ip6_dst_alloc+0x23/0x90
[ 2293.885718][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2293.885718][   T10]      ip6_pol_route+0x56f/0x840
[ 2293.885718][   T10]      fib6_rule_lookup+0x456/0x630
[ 2293.885718][   T10]      ip6_route_input+0x59c/0xa50
[ 2293.885718][   T10]      ipv6_rcv+0x397/0x810
[ 2293.885718][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2293.885718][   T10]      process_backlog+0x101/0x620
[ 2293.885718][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2293.885718][   T10]      net_rx_action+0x495/0xbe0
[ 2293.885718][   T10]      __do_softirq+0x1b5/0x7f6
[ 2293.885718][   T10] 
[ 2293.887400][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2293.887400][   T10]      netdev_get_by_index+0x5e/0x80
[ 2293.887400][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2293.887400][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2293.887400][   T10]      ip6_route_add+0x1c/0x140
[ 2293.887400][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2293.887400][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2293.887400][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2293.887400][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2293.887400][   T10]      netlink_rcv_skb+0x130/0x360
[ 2293.887400][   T10]      netlink_unicast+0x449/0x710
[ 2293.887400][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2293.887400][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2293.887400][   T10]      ___sys_sendmsg+0xee/0x170
[ 2293.887400][   T10]      __sys_sendmsg+0xcd/0x170
[ 2293.887400][   T10]      do_syscall_64+0xc6/0x1e0
[ 2293.887400][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2293.887400][   T10] 
[ 2293.889451][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2293.889451][   T10]      netdev_get_by_index+0x5e/0x80
[ 2293.889451][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2293.889451][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2293.889451][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2293.889451][   T10]      ipv6_add_addr+0x411/0x2000
[ 2293.889451][   T10]      inet6_addr_add+0x30e/0xa40
[ 2293.889451][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2293.889451][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2293.889451][   T10]      netlink_rcv_skb+0x130/0x360
[ 2293.889451][   T10]      netlink_unicast+0x449/0x710
[ 2293.889451][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2293.889451][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2293.889451][   T10]      ___sys_sendmsg+0xee/0x170
[ 2293.889451][   T10]      __sys_sendmsg+0xcd/0x170
[ 2293.889451][   T10]      do_syscall_64+0xc6/0x1e0
[ 2293.889451][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2293.889451][   T10] 
[ 2293.891506][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2293.891506][   T10]      netdev_get_by_index+0x5e/0x80
[ 2293.891506][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2293.891506][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2293.891506][   T10]      ip6_route_add+0x1c/0x140
[ 2293.891506][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2293.891506][   T10]      addrconf_add_dev+0xe2/0x170
[ 2293.891506][   T10]      inet6_addr_add+0x12f/0xa40
[ 2293.891506][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2293.891506][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2293.891506][   T10]      netlink_rcv_skb+0x130/0x360
[ 2293.891506][   T10]      netlink_unicast+0x449/0x710
[ 2293.891506][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2293.891506][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2293.891506][   T10]      ___sys_sendmsg+0xee/0x170
[ 2293.891506][   T10]      __sys_sendmsg+0xcd/0x170
[ 2293.891506][   T10]      do_syscall_64+0xc6/0x1e0
[ 2293.891506][   T10] 
[ 2293.893560][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2293.893560][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2293.893560][   T10]      ipv6_find_idev+0x102/0x170
[ 2293.893560][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2293.893560][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2293.893560][   T10]      netlink_rcv_skb+0x130/0x360
[ 2293.893560][   T10]      netlink_unicast+0x449/0x710
[ 2293.893560][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2293.893560][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2293.893560][   T10]      ___sys_sendmsg+0xee/0x170
[ 2293.893560][   T10]      __sys_sendmsg+0xcd/0x170
[ 2293.893560][   T10]      do_syscall_64+0xc6/0x1e0
[ 2293.893560][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2293.893560][   T10] 
[ 2293.895143][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2293.895143][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2293.895143][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2293.895143][   T10]      ipv6_find_idev+0x102/0x170
[ 2293.895143][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2293.895143][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2293.895143][   T10]      netlink_rcv_skb+0x130/0x360
[ 2293.895143][   T10]      netlink_unicast+0x449/0x710
[ 2293.895143][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2293.895143][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2293.895143][   T10]      ___sys_sendmsg+0xee/0x170
[ 2293.895143][   T10]      __sys_sendmsg+0xcd/0x170
[ 2293.895143][   T10]      do_syscall_64+0xc6/0x1e0
[ 2293.895143][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2293.895143][   T10] 
[ 2304.137787][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2304.138264][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2304.138264][   T10]      dst_init+0x84/0x4a0
[ 2304.138264][   T10]      dst_alloc+0x97/0x150
[ 2304.138264][   T10]      ip6_dst_alloc+0x23/0x90
[ 2304.138264][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2304.138264][   T10]      ip6_pol_route+0x56f/0x840
[ 2304.138264][   T10]      fib6_rule_lookup+0x456/0x630
[ 2304.138264][   T10]      ip6_route_input+0x59c/0xa50
[ 2304.138264][   T10]      ipv6_rcv+0x397/0x810
[ 2304.138264][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2304.138264][   T10]      process_backlog+0x101/0x620
[ 2304.138264][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2304.138264][   T10]      net_rx_action+0x495/0xbe0
[ 2304.138264][   T10]      __do_softirq+0x1b5/0x7f6
[ 2304.138264][   T10] 
[ 2304.139993][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2304.139993][   T10]      netdev_get_by_index+0x5e/0x80
[ 2304.139993][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2304.139993][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2304.139993][   T10]      ip6_route_add+0x1c/0x140
[ 2304.139993][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2304.139993][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2304.139993][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2304.139993][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2304.139993][   T10]      netlink_rcv_skb+0x130/0x360
[ 2304.139993][   T10]      netlink_unicast+0x449/0x710
[ 2304.139993][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2304.139993][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2304.139993][   T10]      ___sys_sendmsg+0xee/0x170
[ 2304.139993][   T10]      __sys_sendmsg+0xcd/0x170
[ 2304.139993][   T10]      do_syscall_64+0xc6/0x1e0
[ 2304.139993][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2304.139993][   T10] 
[ 2304.142080][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2304.142080][   T10]      netdev_get_by_index+0x5e/0x80
[ 2304.142080][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2304.142080][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2304.142080][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2304.142080][   T10]      ipv6_add_addr+0x411/0x2000
[ 2304.142080][   T10]      inet6_addr_add+0x30e/0xa40
[ 2304.142080][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2304.142080][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2304.142080][   T10]      netlink_rcv_skb+0x130/0x360
[ 2304.142080][   T10]      netlink_unicast+0x449/0x710
[ 2304.142080][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2304.142080][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2304.142080][   T10]      ___sys_sendmsg+0xee/0x170
[ 2304.142080][   T10]      __sys_sendmsg+0xcd/0x170
[ 2304.142080][   T10]      do_syscall_64+0xc6/0x1e0
[ 2304.142080][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2304.142080][   T10] 
[ 2304.144140][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2304.144140][   T10]      netdev_get_by_index+0x5e/0x80
[ 2304.144140][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2304.144140][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2304.144140][   T10]      ip6_route_add+0x1c/0x140
[ 2304.144140][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2304.144140][   T10]      addrconf_add_dev+0xe2/0x170
[ 2304.144140][   T10]      inet6_addr_add+0x12f/0xa40
[ 2304.144140][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2304.144140][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2304.144140][   T10]      netlink_rcv_skb+0x130/0x360
[ 2304.144140][   T10]      netlink_unicast+0x449/0x710
[ 2304.144140][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2304.144140][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2304.144140][   T10]      ___sys_sendmsg+0xee/0x170
[ 2304.144140][   T10]      __sys_sendmsg+0xcd/0x170
[ 2304.144140][   T10]      do_syscall_64+0xc6/0x1e0
[ 2304.144140][   T10] 
[ 2304.146155][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2304.146155][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2304.146155][   T10]      ipv6_find_idev+0x102/0x170
[ 2304.146155][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2304.146155][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2304.146155][   T10]      netlink_rcv_skb+0x130/0x360
[ 2304.146155][   T10]      netlink_unicast+0x449/0x710
[ 2304.146155][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2304.146155][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2304.146155][   T10]      ___sys_sendmsg+0xee/0x170
[ 2304.146155][   T10]      __sys_sendmsg+0xcd/0x170
[ 2304.146155][   T10]      do_syscall_64+0xc6/0x1e0
[ 2304.146155][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2304.146155][   T10] 
[ 2304.147737][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2304.147737][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2304.147737][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2304.147737][   T10]      ipv6_find_idev+0x102/0x170
[ 2304.147737][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2304.147737][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2304.147737][   T10]      netlink_rcv_skb+0x130/0x360
[ 2304.147737][   T10]      netlink_unicast+0x449/0x710
[ 2304.147737][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2304.147737][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2304.147737][   T10]      ___sys_sendmsg+0xee/0x170
[ 2304.147737][   T10]      __sys_sendmsg+0xcd/0x170
[ 2304.147737][   T10]      do_syscall_64+0xc6/0x1e0
[ 2304.147737][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2304.147737][   T10] 
[ 2304.149471][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2304.149733][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2304.149733][   T10]      dst_init+0x84/0x4a0
[ 2304.149733][   T10]      dst_alloc+0x97/0x150
[ 2304.149733][   T10]      ip6_dst_alloc+0x23/0x90
[ 2304.149733][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2304.149733][   T10]      ip6_pol_route+0x56f/0x840
[ 2304.149733][   T10]      fib6_rule_lookup+0x456/0x630
[ 2304.149733][   T10]      ip6_route_input+0x59c/0xa50
[ 2304.149733][   T10]      ipv6_rcv+0x397/0x810
[ 2304.149733][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2304.149733][   T10]      process_backlog+0x101/0x620
[ 2304.149733][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2304.149733][   T10]      net_rx_action+0x495/0xbe0
[ 2304.149733][   T10]      __do_softirq+0x1b5/0x7f6
[ 2304.149733][   T10] 
[ 2304.151417][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2304.151417][   T10]      netdev_get_by_index+0x5e/0x80
[ 2304.151417][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2304.151417][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2304.151417][   T10]      ip6_route_add+0x1c/0x140
[ 2304.151417][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2304.151417][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2304.151417][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2304.151417][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2304.151417][   T10]      netlink_rcv_skb+0x130/0x360
[ 2304.151417][   T10]      netlink_unicast+0x449/0x710
[ 2304.151417][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2304.151417][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2304.151417][   T10]      ___sys_sendmsg+0xee/0x170
[ 2304.151417][   T10]      __sys_sendmsg+0xcd/0x170
[ 2304.151417][   T10]      do_syscall_64+0xc6/0x1e0
[ 2304.151417][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2304.151417][   T10] 
[ 2304.153466][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2304.153466][   T10]      netdev_get_by_index+0x5e/0x80
[ 2304.153466][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2304.153466][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2304.153466][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2304.153466][   T10]      ipv6_add_addr+0x411/0x2000
[ 2304.153466][   T10]      inet6_addr_add+0x30e/0xa40
[ 2304.153466][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2304.153466][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2304.153466][   T10]      netlink_rcv_skb+0x130/0x360
[ 2304.153466][   T10]      netlink_unicast+0x449/0x710
[ 2304.153466][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2304.153466][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2304.153466][   T10]      ___sys_sendmsg+0xee/0x170
[ 2304.153466][   T10]      __sys_sendmsg+0xcd/0x170
[ 2304.153466][   T10]      do_syscall_64+0xc6/0x1e0
[ 2304.153466][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2304.153466][   T10] 
[ 2304.155520][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2304.155520][   T10]      netdev_get_by_index+0x5e/0x80
[ 2304.155520][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2304.155520][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2304.155520][   T10]      ip6_route_add+0x1c/0x140
[ 2304.155520][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2304.155520][   T10]      addrconf_add_dev+0xe2/0x170
[ 2304.155520][   T10]      inet6_addr_add+0x12f/0xa40
[ 2304.155520][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2304.155520][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2304.155520][   T10]      netlink_rcv_skb+0x130/0x360
[ 2304.155520][   T10]      netlink_unicast+0x449/0x710
[ 2304.155520][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2304.155520][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2304.155520][   T10]      ___sys_sendmsg+0xee/0x170
[ 2304.155520][   T10]      __sys_sendmsg+0xcd/0x170
[ 2304.155520][   T10]      do_syscall_64+0xc6/0x1e0
[ 2304.155520][   T10] 
[ 2304.158076][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2304.158076][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2304.158076][   T10]      ipv6_find_idev+0x102/0x170
[ 2304.158076][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2304.158076][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2304.158076][   T10]      netlink_rcv_skb+0x130/0x360
[ 2304.158076][   T10]      netlink_unicast+0x449/0x710
[ 2304.158076][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2304.158076][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2304.158076][   T10]      ___sys_sendmsg+0xee/0x170
[ 2304.158076][   T10]      __sys_sendmsg+0xcd/0x170
[ 2304.158076][   T10]      do_syscall_64+0xc6/0x1e0
[ 2304.158076][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2304.158076][   T10] 
[ 2304.160057][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2304.160057][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2304.160057][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2304.160057][   T10]      ipv6_find_idev+0x102/0x170
[ 2304.160057][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2304.160057][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2304.160057][   T10]      netlink_rcv_skb+0x130/0x360
[ 2304.160057][   T10]      netlink_unicast+0x449/0x710
[ 2304.160057][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2304.160057][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2304.160057][   T10]      ___sys_sendmsg+0xee/0x170
[ 2304.160057][   T10]      __sys_sendmsg+0xcd/0x170
[ 2304.160057][   T10]      do_syscall_64+0xc6/0x1e0
[ 2304.160057][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2304.160057][   T10] 
[ 2314.401723][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2314.402192][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2314.402192][   T10]      dst_init+0x84/0x4a0
[ 2314.402192][   T10]      dst_alloc+0x97/0x150
[ 2314.402192][   T10]      ip6_dst_alloc+0x23/0x90
[ 2314.402192][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2314.402192][   T10]      ip6_pol_route+0x56f/0x840
[ 2314.402192][   T10]      fib6_rule_lookup+0x456/0x630
[ 2314.402192][   T10]      ip6_route_input+0x59c/0xa50
[ 2314.402192][   T10]      ipv6_rcv+0x397/0x810
[ 2314.402192][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2314.402192][   T10]      process_backlog+0x101/0x620
[ 2314.402192][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2314.402192][   T10]      net_rx_action+0x495/0xbe0
[ 2314.402192][   T10]      __do_softirq+0x1b5/0x7f6
[ 2314.402192][   T10] 
[ 2314.403907][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2314.403907][   T10]      netdev_get_by_index+0x5e/0x80
[ 2314.403907][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2314.403907][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2314.403907][   T10]      ip6_route_add+0x1c/0x140
[ 2314.403907][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2314.403907][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2314.403907][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2314.403907][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2314.403907][   T10]      netlink_rcv_skb+0x130/0x360
[ 2314.403907][   T10]      netlink_unicast+0x449/0x710
[ 2314.403907][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2314.403907][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2314.403907][   T10]      ___sys_sendmsg+0xee/0x170
[ 2314.403907][   T10]      __sys_sendmsg+0xcd/0x170
[ 2314.403907][   T10]      do_syscall_64+0xc6/0x1e0
[ 2314.403907][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2314.403907][   T10] 
[ 2314.405968][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2314.405968][   T10]      netdev_get_by_index+0x5e/0x80
[ 2314.405968][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2314.405968][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2314.405968][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2314.405968][   T10]      ipv6_add_addr+0x411/0x2000
[ 2314.405968][   T10]      inet6_addr_add+0x30e/0xa40
[ 2314.405968][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2314.405968][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2314.405968][   T10]      netlink_rcv_skb+0x130/0x360
[ 2314.405968][   T10]      netlink_unicast+0x449/0x710
[ 2314.405968][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2314.405968][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2314.405968][   T10]      ___sys_sendmsg+0xee/0x170
[ 2314.405968][   T10]      __sys_sendmsg+0xcd/0x170
[ 2314.405968][   T10]      do_syscall_64+0xc6/0x1e0
[ 2314.405968][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2314.405968][   T10] 
[ 2314.408019][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2314.408019][   T10]      netdev_get_by_index+0x5e/0x80
[ 2314.408019][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2314.408019][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2314.408019][   T10]      ip6_route_add+0x1c/0x140
[ 2314.408019][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2314.408019][   T10]      addrconf_add_dev+0xe2/0x170
[ 2314.408019][   T10]      inet6_addr_add+0x12f/0xa40
[ 2314.408019][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2314.408019][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2314.408019][   T10]      netlink_rcv_skb+0x130/0x360
[ 2314.408019][   T10]      netlink_unicast+0x449/0x710
[ 2314.408019][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2314.408019][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2314.408019][   T10]      ___sys_sendmsg+0xee/0x170
[ 2314.408019][   T10]      __sys_sendmsg+0xcd/0x170
[ 2314.408019][   T10]      do_syscall_64+0xc6/0x1e0
[ 2314.408019][   T10] 
[ 2314.410037][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2314.410037][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2314.410037][   T10]      ipv6_find_idev+0x102/0x170
[ 2314.410037][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2314.410037][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2314.410037][   T10]      netlink_rcv_skb+0x130/0x360
[ 2314.410037][   T10]      netlink_unicast+0x449/0x710
[ 2314.410037][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2314.410037][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2314.410037][   T10]      ___sys_sendmsg+0xee/0x170
[ 2314.410037][   T10]      __sys_sendmsg+0xcd/0x170
[ 2314.410037][   T10]      do_syscall_64+0xc6/0x1e0
[ 2314.410037][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2314.410037][   T10] 
[ 2314.411631][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2314.411631][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2314.411631][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2314.411631][   T10]      ipv6_find_idev+0x102/0x170
[ 2314.411631][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2314.411631][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2314.411631][   T10]      netlink_rcv_skb+0x130/0x360
[ 2314.411631][   T10]      netlink_unicast+0x449/0x710
[ 2314.411631][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2314.411631][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2314.411631][   T10]      ___sys_sendmsg+0xee/0x170
[ 2314.411631][   T10]      __sys_sendmsg+0xcd/0x170
[ 2314.411631][   T10]      do_syscall_64+0xc6/0x1e0
[ 2314.411631][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2314.411631][   T10] 
[ 2314.413371][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2314.413627][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2314.413627][   T10]      dst_init+0x84/0x4a0
[ 2314.413627][   T10]      dst_alloc+0x97/0x150
[ 2314.413627][   T10]      ip6_dst_alloc+0x23/0x90
[ 2314.413627][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2314.413627][   T10]      ip6_pol_route+0x56f/0x840
[ 2314.413627][   T10]      fib6_rule_lookup+0x456/0x630
[ 2314.413627][   T10]      ip6_route_input+0x59c/0xa50
[ 2314.413627][   T10]      ipv6_rcv+0x397/0x810
[ 2314.413627][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2314.413627][   T10]      process_backlog+0x101/0x620
[ 2314.413627][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2314.413627][   T10]      net_rx_action+0x495/0xbe0
[ 2314.413627][   T10]      __do_softirq+0x1b5/0x7f6
[ 2314.413627][   T10] 
[ 2314.415312][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2314.415312][   T10]      netdev_get_by_index+0x5e/0x80
[ 2314.415312][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2314.415312][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2314.415312][   T10]      ip6_route_add+0x1c/0x140
[ 2314.415312][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2314.415312][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2314.415312][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2314.415312][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2314.415312][   T10]      netlink_rcv_skb+0x130/0x360
[ 2314.415312][   T10]      netlink_unicast+0x449/0x710
[ 2314.415312][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2314.415312][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2314.415312][   T10]      ___sys_sendmsg+0xee/0x170
[ 2314.415312][   T10]      __sys_sendmsg+0xcd/0x170
[ 2314.415312][   T10]      do_syscall_64+0xc6/0x1e0
[ 2314.415312][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2314.415312][   T10] 
[ 2314.417356][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2314.417356][   T10]      netdev_get_by_index+0x5e/0x80
[ 2314.417356][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2314.417356][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2314.417356][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2314.417356][   T10]      ipv6_add_addr+0x411/0x2000
[ 2314.417356][   T10]      inet6_addr_add+0x30e/0xa40
[ 2314.417356][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2314.417356][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2314.417356][   T10]      netlink_rcv_skb+0x130/0x360
[ 2314.417356][   T10]      netlink_unicast+0x449/0x710
[ 2314.417356][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2314.417356][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2314.417356][   T10]      ___sys_sendmsg+0xee/0x170
[ 2314.417356][   T10]      __sys_sendmsg+0xcd/0x170
[ 2314.417356][   T10]      do_syscall_64+0xc6/0x1e0
[ 2314.417356][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2314.417356][   T10] 
[ 2314.419407][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2314.419407][   T10]      netdev_get_by_index+0x5e/0x80
[ 2314.419407][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2314.419407][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2314.419407][   T10]      ip6_route_add+0x1c/0x140
[ 2314.419407][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2314.419407][   T10]      addrconf_add_dev+0xe2/0x170
[ 2314.419407][   T10]      inet6_addr_add+0x12f/0xa40
[ 2314.419407][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2314.419407][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2314.419407][   T10]      netlink_rcv_skb+0x130/0x360
[ 2314.419407][   T10]      netlink_unicast+0x449/0x710
[ 2314.419407][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2314.419407][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2314.419407][   T10]      ___sys_sendmsg+0xee/0x170
[ 2314.419407][   T10]      __sys_sendmsg+0xcd/0x170
[ 2314.419407][   T10]      do_syscall_64+0xc6/0x1e0
[ 2314.419407][   T10] 
[ 2314.421422][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2314.421422][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2314.421422][   T10]      ipv6_find_idev+0x102/0x170
[ 2314.421422][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2314.421422][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2314.421422][   T10]      netlink_rcv_skb+0x130/0x360
[ 2314.421422][   T10]      netlink_unicast+0x449/0x710
[ 2314.421422][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2314.421422][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2314.421422][   T10]      ___sys_sendmsg+0xee/0x170
[ 2314.421422][   T10]      __sys_sendmsg+0xcd/0x170
[ 2314.421422][   T10]      do_syscall_64+0xc6/0x1e0
[ 2314.421422][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2314.421422][   T10] 
[ 2314.422997][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2314.422997][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2314.422997][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2314.422997][   T10]      ipv6_find_idev+0x102/0x170
[ 2314.422997][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2314.422997][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2314.422997][   T10]      netlink_rcv_skb+0x130/0x360
[ 2314.422997][   T10]      netlink_unicast+0x449/0x710
[ 2314.422997][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2314.422997][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2314.422997][   T10]      ___sys_sendmsg+0xee/0x170
[ 2314.422997][   T10]      __sys_sendmsg+0xcd/0x170
[ 2314.422997][   T10]      do_syscall_64+0xc6/0x1e0
[ 2314.422997][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2314.422997][   T10] 
[ 2324.665778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2324.666247][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2324.666247][   T10]      dst_init+0x84/0x4a0
[ 2324.666247][   T10]      dst_alloc+0x97/0x150
[ 2324.666247][   T10]      ip6_dst_alloc+0x23/0x90
[ 2324.666247][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2324.666247][   T10]      ip6_pol_route+0x56f/0x840
[ 2324.666247][   T10]      fib6_rule_lookup+0x456/0x630
[ 2324.666247][   T10]      ip6_route_input+0x59c/0xa50
[ 2324.666247][   T10]      ipv6_rcv+0x397/0x810
[ 2324.666247][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2324.666247][   T10]      process_backlog+0x101/0x620
[ 2324.666247][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2324.666247][   T10]      net_rx_action+0x495/0xbe0
[ 2324.666247][   T10]      __do_softirq+0x1b5/0x7f6
[ 2324.666247][   T10] 
[ 2324.667972][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2324.667972][   T10]      netdev_get_by_index+0x5e/0x80
[ 2324.667972][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2324.667972][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2324.667972][   T10]      ip6_route_add+0x1c/0x140
[ 2324.667972][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2324.667972][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2324.667972][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2324.667972][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2324.667972][   T10]      netlink_rcv_skb+0x130/0x360
[ 2324.667972][   T10]      netlink_unicast+0x449/0x710
[ 2324.667972][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2324.667972][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2324.667972][   T10]      ___sys_sendmsg+0xee/0x170
[ 2324.667972][   T10]      __sys_sendmsg+0xcd/0x170
[ 2324.667972][   T10]      do_syscall_64+0xc6/0x1e0
[ 2324.667972][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2324.667972][   T10] 
[ 2324.670030][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2324.670030][   T10]      netdev_get_by_index+0x5e/0x80
[ 2324.670030][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2324.670030][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2324.670030][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2324.670030][   T10]      ipv6_add_addr+0x411/0x2000
[ 2324.670030][   T10]      inet6_addr_add+0x30e/0xa40
[ 2324.670030][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2324.670030][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2324.670030][   T10]      netlink_rcv_skb+0x130/0x360
[ 2324.670030][   T10]      netlink_unicast+0x449/0x710
[ 2324.670030][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2324.670030][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2324.670030][   T10]      ___sys_sendmsg+0xee/0x170
[ 2324.670030][   T10]      __sys_sendmsg+0xcd/0x170
[ 2324.670030][   T10]      do_syscall_64+0xc6/0x1e0
[ 2324.670030][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2324.670030][   T10] 
[ 2324.672159][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2324.672159][   T10]      netdev_get_by_index+0x5e/0x80
[ 2324.672159][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2324.672159][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2324.672159][   T10]      ip6_route_add+0x1c/0x140
[ 2324.672159][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2324.672159][   T10]      addrconf_add_dev+0xe2/0x170
[ 2324.672159][   T10]      inet6_addr_add+0x12f/0xa40
[ 2324.672159][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2324.672159][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2324.672159][   T10]      netlink_rcv_skb+0x130/0x360
[ 2324.672159][   T10]      netlink_unicast+0x449/0x710
[ 2324.672159][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2324.672159][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2324.672159][   T10]      ___sys_sendmsg+0xee/0x170
[ 2324.672159][   T10]      __sys_sendmsg+0xcd/0x170
[ 2324.672159][   T10]      do_syscall_64+0xc6/0x1e0
[ 2324.672159][   T10] 
[ 2324.674173][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2324.674173][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2324.674173][   T10]      ipv6_find_idev+0x102/0x170
[ 2324.674173][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2324.674173][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2324.674173][   T10]      netlink_rcv_skb+0x130/0x360
[ 2324.674173][   T10]      netlink_unicast+0x449/0x710
[ 2324.674173][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2324.674173][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2324.674173][   T10]      ___sys_sendmsg+0xee/0x170
[ 2324.674173][   T10]      __sys_sendmsg+0xcd/0x170
[ 2324.674173][   T10]      do_syscall_64+0xc6/0x1e0
[ 2324.674173][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2324.674173][   T10] 
[ 2324.675772][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2324.675772][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2324.675772][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2324.675772][   T10]      ipv6_find_idev+0x102/0x170
[ 2324.675772][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2324.675772][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2324.675772][   T10]      netlink_rcv_skb+0x130/0x360
[ 2324.675772][   T10]      netlink_unicast+0x449/0x710
[ 2324.675772][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2324.675772][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2324.675772][   T10]      ___sys_sendmsg+0xee/0x170
[ 2324.675772][   T10]      __sys_sendmsg+0xcd/0x170
[ 2324.675772][   T10]      do_syscall_64+0xc6/0x1e0
[ 2324.675772][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2324.675772][   T10] 
[ 2324.677500][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2324.677759][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2324.677759][   T10]      dst_init+0x84/0x4a0
[ 2324.677759][   T10]      dst_alloc+0x97/0x150
[ 2324.677759][   T10]      ip6_dst_alloc+0x23/0x90
[ 2324.677759][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2324.677759][   T10]      ip6_pol_route+0x56f/0x840
[ 2324.677759][   T10]      fib6_rule_lookup+0x456/0x630
[ 2324.677759][   T10]      ip6_route_input+0x59c/0xa50
[ 2324.677759][   T10]      ipv6_rcv+0x397/0x810
[ 2324.677759][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2324.677759][   T10]      process_backlog+0x101/0x620
[ 2324.677759][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2324.677759][   T10]      net_rx_action+0x495/0xbe0
[ 2324.677759][   T10]      __do_softirq+0x1b5/0x7f6
[ 2324.677759][   T10] 
[ 2324.679444][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2324.679444][   T10]      netdev_get_by_index+0x5e/0x80
[ 2324.679444][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2324.679444][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2324.679444][   T10]      ip6_route_add+0x1c/0x140
[ 2324.679444][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2324.679444][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2324.679444][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2324.679444][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2324.679444][   T10]      netlink_rcv_skb+0x130/0x360
[ 2324.679444][   T10]      netlink_unicast+0x449/0x710
[ 2324.679444][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2324.679444][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2324.679444][   T10]      ___sys_sendmsg+0xee/0x170
[ 2324.679444][   T10]      __sys_sendmsg+0xcd/0x170
[ 2324.679444][   T10]      do_syscall_64+0xc6/0x1e0
[ 2324.679444][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2324.679444][   T10] 
[ 2324.681497][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2324.681497][   T10]      netdev_get_by_index+0x5e/0x80
[ 2324.681497][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2324.681497][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2324.681497][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2324.681497][   T10]      ipv6_add_addr+0x411/0x2000
[ 2324.681497][   T10]      inet6_addr_add+0x30e/0xa40
[ 2324.681497][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2324.681497][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2324.681497][   T10]      netlink_rcv_skb+0x130/0x360
[ 2324.681497][   T10]      netlink_unicast+0x449/0x710
[ 2324.681497][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2324.681497][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2324.681497][   T10]      ___sys_sendmsg+0xee/0x170
[ 2324.681497][   T10]      __sys_sendmsg+0xcd/0x170
[ 2324.681497][   T10]      do_syscall_64+0xc6/0x1e0
[ 2324.681497][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2324.681497][   T10] 
[ 2324.683553][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2324.683553][   T10]      netdev_get_by_index+0x5e/0x80
[ 2324.683553][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2324.683553][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2324.683553][   T10]      ip6_route_add+0x1c/0x140
[ 2324.683553][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2324.683553][   T10]      addrconf_add_dev+0xe2/0x170
[ 2324.683553][   T10]      inet6_addr_add+0x12f/0xa40
[ 2324.683553][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2324.683553][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2324.683553][   T10]      netlink_rcv_skb+0x130/0x360
[ 2324.683553][   T10]      netlink_unicast+0x449/0x710
[ 2324.683553][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2324.683553][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2324.683553][   T10]      ___sys_sendmsg+0xee/0x170
[ 2324.683553][   T10]      __sys_sendmsg+0xcd/0x170
[ 2324.683553][   T10]      do_syscall_64+0xc6/0x1e0
[ 2324.683553][   T10] 
[ 2324.685562][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2324.685562][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2324.685562][   T10]      ipv6_find_idev+0x102/0x170
[ 2324.685562][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2324.685562][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2324.685562][   T10]      netlink_rcv_skb+0x130/0x360
[ 2324.685562][   T10]      netlink_unicast+0x449/0x710
[ 2324.685562][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2324.685562][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2324.685562][   T10]      ___sys_sendmsg+0xee/0x170
[ 2324.685562][   T10]      __sys_sendmsg+0xcd/0x170
[ 2324.685562][   T10]      do_syscall_64+0xc6/0x1e0
[ 2324.685562][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2324.685562][   T10] 
[ 2324.687139][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2324.687139][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2324.687139][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2324.687139][   T10]      ipv6_find_idev+0x102/0x170
[ 2324.687139][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2324.687139][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2324.687139][   T10]      netlink_rcv_skb+0x130/0x360
[ 2324.687139][   T10]      netlink_unicast+0x449/0x710
[ 2324.687139][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2324.687139][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2324.687139][   T10]      ___sys_sendmsg+0xee/0x170
[ 2324.687139][   T10]      __sys_sendmsg+0xcd/0x170
[ 2324.687139][   T10]      do_syscall_64+0xc6/0x1e0
[ 2324.687139][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2324.687139][   T10] 
[ 2334.929778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2334.930256][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2334.930256][   T10]      dst_init+0x84/0x4a0
[ 2334.930256][   T10]      dst_alloc+0x97/0x150
[ 2334.930256][   T10]      ip6_dst_alloc+0x23/0x90
[ 2334.930256][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2334.930256][   T10]      ip6_pol_route+0x56f/0x840
[ 2334.930256][   T10]      fib6_rule_lookup+0x456/0x630
[ 2334.930256][   T10]      ip6_route_input+0x59c/0xa50
[ 2334.930256][   T10]      ipv6_rcv+0x397/0x810
[ 2334.930256][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2334.930256][   T10]      process_backlog+0x101/0x620
[ 2334.930256][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2334.930256][   T10]      net_rx_action+0x495/0xbe0
[ 2334.930256][   T10]      __do_softirq+0x1b5/0x7f6
[ 2334.930256][   T10] 
[ 2334.932005][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2334.932005][   T10]      netdev_get_by_index+0x5e/0x80
[ 2334.932005][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2334.932005][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2334.932005][   T10]      ip6_route_add+0x1c/0x140
[ 2334.932005][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2334.932005][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2334.932005][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2334.932005][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2334.932005][   T10]      netlink_rcv_skb+0x130/0x360
[ 2334.932005][   T10]      netlink_unicast+0x449/0x710
[ 2334.932005][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2334.932005][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2334.932005][   T10]      ___sys_sendmsg+0xee/0x170
[ 2334.932005][   T10]      __sys_sendmsg+0xcd/0x170
[ 2334.932005][   T10]      do_syscall_64+0xc6/0x1e0
[ 2334.932005][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2334.932005][   T10] 
[ 2334.934066][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2334.934066][   T10]      netdev_get_by_index+0x5e/0x80
[ 2334.934066][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2334.934066][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2334.934066][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2334.934066][   T10]      ipv6_add_addr+0x411/0x2000
[ 2334.934066][   T10]      inet6_addr_add+0x30e/0xa40
[ 2334.934066][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2334.934066][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2334.934066][   T10]      netlink_rcv_skb+0x130/0x360
[ 2334.934066][   T10]      netlink_unicast+0x449/0x710
[ 2334.934066][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2334.934066][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2334.934066][   T10]      ___sys_sendmsg+0xee/0x170
[ 2334.934066][   T10]      __sys_sendmsg+0xcd/0x170
[ 2334.934066][   T10]      do_syscall_64+0xc6/0x1e0
[ 2334.934066][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2334.934066][   T10] 
[ 2334.936119][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2334.936119][   T10]      netdev_get_by_index+0x5e/0x80
[ 2334.936119][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2334.936119][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2334.936119][   T10]      ip6_route_add+0x1c/0x140
[ 2334.936119][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2334.936119][   T10]      addrconf_add_dev+0xe2/0x170
[ 2334.936119][   T10]      inet6_addr_add+0x12f/0xa40
[ 2334.936119][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2334.936119][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2334.936119][   T10]      netlink_rcv_skb+0x130/0x360
[ 2334.936119][   T10]      netlink_unicast+0x449/0x710
[ 2334.936119][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2334.936119][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2334.936119][   T10]      ___sys_sendmsg+0xee/0x170
[ 2334.936119][   T10]      __sys_sendmsg+0xcd/0x170
[ 2334.936119][   T10]      do_syscall_64+0xc6/0x1e0
[ 2334.936119][   T10] 
[ 2334.938139][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2334.938139][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2334.938139][   T10]      ipv6_find_idev+0x102/0x170
[ 2334.938139][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2334.938139][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2334.938139][   T10]      netlink_rcv_skb+0x130/0x360
[ 2334.938139][   T10]      netlink_unicast+0x449/0x710
[ 2334.938139][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2334.938139][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2334.938139][   T10]      ___sys_sendmsg+0xee/0x170
[ 2334.938139][   T10]      __sys_sendmsg+0xcd/0x170
[ 2334.938139][   T10]      do_syscall_64+0xc6/0x1e0
[ 2334.938139][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2334.938139][   T10] 
[ 2334.939720][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2334.939720][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2334.939720][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2334.939720][   T10]      ipv6_find_idev+0x102/0x170
[ 2334.939720][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2334.939720][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2334.939720][   T10]      netlink_rcv_skb+0x130/0x360
[ 2334.939720][   T10]      netlink_unicast+0x449/0x710
[ 2334.939720][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2334.939720][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2334.939720][   T10]      ___sys_sendmsg+0xee/0x170
[ 2334.939720][   T10]      __sys_sendmsg+0xcd/0x170
[ 2334.939720][   T10]      do_syscall_64+0xc6/0x1e0
[ 2334.939720][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2334.939720][   T10] 
[ 2334.941462][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2334.941715][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2334.941715][   T10]      dst_init+0x84/0x4a0
[ 2334.941715][   T10]      dst_alloc+0x97/0x150
[ 2334.941715][   T10]      ip6_dst_alloc+0x23/0x90
[ 2334.941715][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2334.941715][   T10]      ip6_pol_route+0x56f/0x840
[ 2334.941715][   T10]      fib6_rule_lookup+0x456/0x630
[ 2334.941715][   T10]      ip6_route_input+0x59c/0xa50
[ 2334.941715][   T10]      ipv6_rcv+0x397/0x810
[ 2334.941715][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2334.941715][   T10]      process_backlog+0x101/0x620
[ 2334.941715][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2334.941715][   T10]      net_rx_action+0x495/0xbe0
[ 2334.941715][   T10]      __do_softirq+0x1b5/0x7f6
[ 2334.941715][   T10] 
[ 2334.943396][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2334.943396][   T10]      netdev_get_by_index+0x5e/0x80
[ 2334.943396][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2334.943396][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2334.943396][   T10]      ip6_route_add+0x1c/0x140
[ 2334.943396][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2334.943396][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2334.943396][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2334.943396][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2334.943396][   T10]      netlink_rcv_skb+0x130/0x360
[ 2334.943396][   T10]      netlink_unicast+0x449/0x710
[ 2334.943396][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2334.943396][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2334.943396][   T10]      ___sys_sendmsg+0xee/0x170
[ 2334.943396][   T10]      __sys_sendmsg+0xcd/0x170
[ 2334.943396][   T10]      do_syscall_64+0xc6/0x1e0
[ 2334.943396][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2334.943396][   T10] 
[ 2334.945450][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2334.945450][   T10]      netdev_get_by_index+0x5e/0x80
[ 2334.945450][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2334.945450][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2334.945450][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2334.945450][   T10]      ipv6_add_addr+0x411/0x2000
[ 2334.945450][   T10]      inet6_addr_add+0x30e/0xa40
[ 2334.945450][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2334.945450][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2334.945450][   T10]      netlink_rcv_skb+0x130/0x360
[ 2334.945450][   T10]      netlink_unicast+0x449/0x710
[ 2334.945450][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2334.945450][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2334.945450][   T10]      ___sys_sendmsg+0xee/0x170
[ 2334.945450][   T10]      __sys_sendmsg+0xcd/0x170
[ 2334.945450][   T10]      do_syscall_64+0xc6/0x1e0
[ 2334.945450][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2334.945450][   T10] 
[ 2334.947501][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2334.947501][   T10]      netdev_get_by_index+0x5e/0x80
[ 2334.947501][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2334.947501][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2334.947501][   T10]      ip6_route_add+0x1c/0x140
[ 2334.947501][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2334.947501][   T10]      addrconf_add_dev+0xe2/0x170
[ 2334.947501][   T10]      inet6_addr_add+0x12f/0xa40
[ 2334.947501][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2334.947501][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2334.947501][   T10]      netlink_rcv_skb+0x130/0x360
[ 2334.947501][   T10]      netlink_unicast+0x449/0x710
[ 2334.947501][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2334.947501][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2334.947501][   T10]      ___sys_sendmsg+0xee/0x170
[ 2334.947501][   T10]      __sys_sendmsg+0xcd/0x170
[ 2334.947501][   T10]      do_syscall_64+0xc6/0x1e0
[ 2334.947501][   T10] 
[ 2334.949513][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2334.949513][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2334.949513][   T10]      ipv6_find_idev+0x102/0x170
[ 2334.949513][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2334.949513][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2334.949513][   T10]      netlink_rcv_skb+0x130/0x360
[ 2334.949513][   T10]      netlink_unicast+0x449/0x710
[ 2334.949513][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2334.949513][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2334.949513][   T10]      ___sys_sendmsg+0xee/0x170
[ 2334.949513][   T10]      __sys_sendmsg+0xcd/0x170
[ 2334.949513][   T10]      do_syscall_64+0xc6/0x1e0
[ 2334.949513][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2334.949513][   T10] 
[ 2334.951096][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2334.951096][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2334.951096][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2334.951096][   T10]      ipv6_find_idev+0x102/0x170
[ 2334.951096][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2334.951096][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2334.951096][   T10]      netlink_rcv_skb+0x130/0x360
[ 2334.951096][   T10]      netlink_unicast+0x449/0x710
[ 2334.951096][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2334.951096][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2334.951096][   T10]      ___sys_sendmsg+0xee/0x170
[ 2334.951096][   T10]      __sys_sendmsg+0xcd/0x170
[ 2334.951096][   T10]      do_syscall_64+0xc6/0x1e0
[ 2334.951096][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2334.951096][   T10] 
[ 2345.193778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2345.194241][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2345.194241][   T10]      dst_init+0x84/0x4a0
[ 2345.194241][   T10]      dst_alloc+0x97/0x150
[ 2345.194241][   T10]      ip6_dst_alloc+0x23/0x90
[ 2345.194241][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2345.194241][   T10]      ip6_pol_route+0x56f/0x840
[ 2345.194241][   T10]      fib6_rule_lookup+0x456/0x630
[ 2345.194241][   T10]      ip6_route_input+0x59c/0xa50
[ 2345.194241][   T10]      ipv6_rcv+0x397/0x810
[ 2345.194241][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2345.194241][   T10]      process_backlog+0x101/0x620
[ 2345.194241][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2345.194241][   T10]      net_rx_action+0x495/0xbe0
[ 2345.194241][   T10]      __do_softirq+0x1b5/0x7f6
[ 2345.194241][   T10] 
[ 2345.195973][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2345.195973][   T10]      netdev_get_by_index+0x5e/0x80
[ 2345.195973][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2345.195973][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2345.195973][   T10]      ip6_route_add+0x1c/0x140
[ 2345.195973][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2345.195973][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2345.195973][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2345.195973][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2345.195973][   T10]      netlink_rcv_skb+0x130/0x360
[ 2345.195973][   T10]      netlink_unicast+0x449/0x710
[ 2345.195973][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2345.195973][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2345.195973][   T10]      ___sys_sendmsg+0xee/0x170
[ 2345.195973][   T10]      __sys_sendmsg+0xcd/0x170
[ 2345.195973][   T10]      do_syscall_64+0xc6/0x1e0
[ 2345.195973][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2345.195973][   T10] 
[ 2345.198051][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2345.198051][   T10]      netdev_get_by_index+0x5e/0x80
[ 2345.198051][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2345.198051][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2345.198051][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2345.198051][   T10]      ipv6_add_addr+0x411/0x2000
[ 2345.198051][   T10]      inet6_addr_add+0x30e/0xa40
[ 2345.198051][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2345.198051][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2345.198051][   T10]      netlink_rcv_skb+0x130/0x360
[ 2345.198051][   T10]      netlink_unicast+0x449/0x710
[ 2345.198051][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2345.198051][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2345.198051][   T10]      ___sys_sendmsg+0xee/0x170
[ 2345.198051][   T10]      __sys_sendmsg+0xcd/0x170
[ 2345.198051][   T10]      do_syscall_64+0xc6/0x1e0
[ 2345.198051][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2345.198051][   T10] 
[ 2345.200135][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2345.200135][   T10]      netdev_get_by_index+0x5e/0x80
[ 2345.200135][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2345.200135][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2345.200135][   T10]      ip6_route_add+0x1c/0x140
[ 2345.200135][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2345.200135][   T10]      addrconf_add_dev+0xe2/0x170
[ 2345.200135][   T10]      inet6_addr_add+0x12f/0xa40
[ 2345.200135][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2345.200135][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2345.200135][   T10]      netlink_rcv_skb+0x130/0x360
[ 2345.200135][   T10]      netlink_unicast+0x449/0x710
[ 2345.200135][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2345.200135][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2345.200135][   T10]      ___sys_sendmsg+0xee/0x170
[ 2345.200135][   T10]      __sys_sendmsg+0xcd/0x170
[ 2345.200135][   T10]      do_syscall_64+0xc6/0x1e0
[ 2345.200135][   T10] 
[ 2345.202164][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2345.202164][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2345.202164][   T10]      ipv6_find_idev+0x102/0x170
[ 2345.202164][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2345.202164][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2345.202164][   T10]      netlink_rcv_skb+0x130/0x360
[ 2345.202164][   T10]      netlink_unicast+0x449/0x710
[ 2345.202164][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2345.202164][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2345.202164][   T10]      ___sys_sendmsg+0xee/0x170
[ 2345.202164][   T10]      __sys_sendmsg+0xcd/0x170
[ 2345.202164][   T10]      do_syscall_64+0xc6/0x1e0
[ 2345.202164][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2345.202164][   T10] 
[ 2345.203744][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2345.203744][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2345.203744][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2345.203744][   T10]      ipv6_find_idev+0x102/0x170
[ 2345.203744][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2345.203744][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2345.203744][   T10]      netlink_rcv_skb+0x130/0x360
[ 2345.203744][   T10]      netlink_unicast+0x449/0x710
[ 2345.203744][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2345.203744][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2345.203744][   T10]      ___sys_sendmsg+0xee/0x170
[ 2345.203744][   T10]      __sys_sendmsg+0xcd/0x170
[ 2345.203744][   T10]      do_syscall_64+0xc6/0x1e0
[ 2345.203744][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2345.203744][   T10] 
[ 2345.205477][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2345.205748][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2345.205748][   T10]      dst_init+0x84/0x4a0
[ 2345.205748][   T10]      dst_alloc+0x97/0x150
[ 2345.205748][   T10]      ip6_dst_alloc+0x23/0x90
[ 2345.205748][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2345.205748][   T10]      ip6_pol_route+0x56f/0x840
[ 2345.205748][   T10]      fib6_rule_lookup+0x456/0x630
[ 2345.205748][   T10]      ip6_route_input+0x59c/0xa50
[ 2345.205748][   T10]      ipv6_rcv+0x397/0x810
[ 2345.205748][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2345.205748][   T10]      process_backlog+0x101/0x620
[ 2345.205748][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2345.205748][   T10]      net_rx_action+0x495/0xbe0
[ 2345.205748][   T10]      __do_softirq+0x1b5/0x7f6
[ 2345.205748][   T10] 
[ 2345.207430][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2345.207430][   T10]      netdev_get_by_index+0x5e/0x80
[ 2345.207430][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2345.207430][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2345.207430][   T10]      ip6_route_add+0x1c/0x140
[ 2345.207430][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2345.207430][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2345.207430][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2345.207430][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2345.207430][   T10]      netlink_rcv_skb+0x130/0x360
[ 2345.207430][   T10]      netlink_unicast+0x449/0x710
[ 2345.207430][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2345.207430][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2345.207430][   T10]      ___sys_sendmsg+0xee/0x170
[ 2345.207430][   T10]      __sys_sendmsg+0xcd/0x170
[ 2345.207430][   T10]      do_syscall_64+0xc6/0x1e0
[ 2345.207430][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2345.207430][   T10] 
[ 2345.209558][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2345.209558][   T10]      netdev_get_by_index+0x5e/0x80
[ 2345.209558][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2345.209558][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2345.209558][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2345.209558][   T10]      ipv6_add_addr+0x411/0x2000
[ 2345.209558][   T10]      inet6_addr_add+0x30e/0xa40
[ 2345.209558][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2345.209558][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2345.209558][   T10]      netlink_rcv_skb+0x130/0x360
[ 2345.209558][   T10]      netlink_unicast+0x449/0x710
[ 2345.209558][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2345.209558][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2345.209558][   T10]      ___sys_sendmsg+0xee/0x170
[ 2345.209558][   T10]      __sys_sendmsg+0xcd/0x170
[ 2345.209558][   T10]      do_syscall_64+0xc6/0x1e0
[ 2345.209558][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2345.209558][   T10] 
[ 2345.211573][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2345.211573][   T10]      netdev_get_by_index+0x5e/0x80
[ 2345.211573][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2345.211573][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2345.211573][   T10]      ip6_route_add+0x1c/0x140
[ 2345.211573][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2345.211573][   T10]      addrconf_add_dev+0xe2/0x170
[ 2345.211573][   T10]      inet6_addr_add+0x12f/0xa40
[ 2345.211573][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2345.211573][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2345.211573][   T10]      netlink_rcv_skb+0x130/0x360
[ 2345.211573][   T10]      netlink_unicast+0x449/0x710
[ 2345.211573][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2345.211573][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2345.211573][   T10]      ___sys_sendmsg+0xee/0x170
[ 2345.211573][   T10]      __sys_sendmsg+0xcd/0x170
[ 2345.211573][   T10]      do_syscall_64+0xc6/0x1e0
[ 2345.211573][   T10] 
[ 2345.213528][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2345.213528][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2345.213528][   T10]      ipv6_find_idev+0x102/0x170
[ 2345.213528][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2345.213528][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2345.213528][   T10]      netlink_rcv_skb+0x130/0x360
[ 2345.213528][   T10]      netlink_unicast+0x449/0x710
[ 2345.213528][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2345.213528][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2345.213528][   T10]      ___sys_sendmsg+0xee/0x170
[ 2345.213528][   T10]      __sys_sendmsg+0xcd/0x170
[ 2345.213528][   T10]      do_syscall_64+0xc6/0x1e0
[ 2345.213528][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2345.213528][   T10] 
[ 2345.215060][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2345.215060][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2345.215060][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2345.215060][   T10]      ipv6_find_idev+0x102/0x170
[ 2345.215060][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2345.215060][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2345.215060][   T10]      netlink_rcv_skb+0x130/0x360
[ 2345.215060][   T10]      netlink_unicast+0x449/0x710
[ 2345.215060][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2345.215060][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2345.215060][   T10]      ___sys_sendmsg+0xee/0x170
[ 2345.215060][   T10]      __sys_sendmsg+0xcd/0x170
[ 2345.215060][   T10]      do_syscall_64+0xc6/0x1e0
[ 2345.215060][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2345.215060][   T10] 
[ 2355.457714][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2355.458175][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2355.458175][   T10]      dst_init+0x84/0x4a0
[ 2355.458175][   T10]      dst_alloc+0x97/0x150
[ 2355.458175][   T10]      ip6_dst_alloc+0x23/0x90
[ 2355.458175][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2355.458175][   T10]      ip6_pol_route+0x56f/0x840
[ 2355.458175][   T10]      fib6_rule_lookup+0x456/0x630
[ 2355.458175][   T10]      ip6_route_input+0x59c/0xa50
[ 2355.458175][   T10]      ipv6_rcv+0x397/0x810
[ 2355.458175][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2355.458175][   T10]      process_backlog+0x101/0x620
[ 2355.458175][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2355.458175][   T10]      net_rx_action+0x495/0xbe0
[ 2355.458175][   T10]      __do_softirq+0x1b5/0x7f6
[ 2355.458175][   T10] 
[ 2355.459850][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2355.459850][   T10]      netdev_get_by_index+0x5e/0x80
[ 2355.459850][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2355.459850][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2355.459850][   T10]      ip6_route_add+0x1c/0x140
[ 2355.459850][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2355.459850][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2355.459850][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2355.459850][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2355.459850][   T10]      netlink_rcv_skb+0x130/0x360
[ 2355.459850][   T10]      netlink_unicast+0x449/0x710
[ 2355.459850][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2355.459850][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2355.459850][   T10]      ___sys_sendmsg+0xee/0x170
[ 2355.459850][   T10]      __sys_sendmsg+0xcd/0x170
[ 2355.459850][   T10]      do_syscall_64+0xc6/0x1e0
[ 2355.459850][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2355.459850][   T10] 
[ 2355.461864][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2355.461864][   T10]      netdev_get_by_index+0x5e/0x80
[ 2355.461864][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2355.461864][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2355.461864][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2355.461864][   T10]      ipv6_add_addr+0x411/0x2000
[ 2355.461864][   T10]      inet6_addr_add+0x30e/0xa40
[ 2355.461864][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2355.461864][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2355.461864][   T10]      netlink_rcv_skb+0x130/0x360
[ 2355.461864][   T10]      netlink_unicast+0x449/0x710
[ 2355.461864][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2355.461864][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2355.461864][   T10]      ___sys_sendmsg+0xee/0x170
[ 2355.461864][   T10]      __sys_sendmsg+0xcd/0x170
[ 2355.461864][   T10]      do_syscall_64+0xc6/0x1e0
[ 2355.461864][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2355.461864][   T10] 
[ 2355.463874][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2355.463874][   T10]      netdev_get_by_index+0x5e/0x80
[ 2355.463874][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2355.463874][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2355.463874][   T10]      ip6_route_add+0x1c/0x140
[ 2355.463874][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2355.463874][   T10]      addrconf_add_dev+0xe2/0x170
[ 2355.463874][   T10]      inet6_addr_add+0x12f/0xa40
[ 2355.463874][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2355.463874][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2355.463874][   T10]      netlink_rcv_skb+0x130/0x360
[ 2355.463874][   T10]      netlink_unicast+0x449/0x710
[ 2355.463874][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2355.463874][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2355.463874][   T10]      ___sys_sendmsg+0xee/0x170
[ 2355.463874][   T10]      __sys_sendmsg+0xcd/0x170
[ 2355.463874][   T10]      do_syscall_64+0xc6/0x1e0
[ 2355.463874][   T10] 
[ 2355.465842][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2355.465842][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2355.465842][   T10]      ipv6_find_idev+0x102/0x170
[ 2355.465842][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2355.465842][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2355.465842][   T10]      netlink_rcv_skb+0x130/0x360
[ 2355.465842][   T10]      netlink_unicast+0x449/0x710
[ 2355.465842][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2355.465842][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2355.465842][   T10]      ___sys_sendmsg+0xee/0x170
[ 2355.465842][   T10]      __sys_sendmsg+0xcd/0x170
[ 2355.465842][   T10]      do_syscall_64+0xc6/0x1e0
[ 2355.465842][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2355.465842][   T10] 
[ 2355.467381][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2355.467381][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2355.467381][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2355.467381][   T10]      ipv6_find_idev+0x102/0x170
[ 2355.467381][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2355.467381][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2355.467381][   T10]      netlink_rcv_skb+0x130/0x360
[ 2355.467381][   T10]      netlink_unicast+0x449/0x710
[ 2355.467381][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2355.467381][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2355.467381][   T10]      ___sys_sendmsg+0xee/0x170
[ 2355.467381][   T10]      __sys_sendmsg+0xcd/0x170
[ 2355.467381][   T10]      do_syscall_64+0xc6/0x1e0
[ 2355.467381][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2355.467381][   T10] 
[ 2355.469203][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2355.469457][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2355.469457][   T10]      dst_init+0x84/0x4a0
[ 2355.469457][   T10]      dst_alloc+0x97/0x150
[ 2355.469457][   T10]      ip6_dst_alloc+0x23/0x90
[ 2355.469457][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2355.469457][   T10]      ip6_pol_route+0x56f/0x840
[ 2355.469457][   T10]      fib6_rule_lookup+0x456/0x630
[ 2355.469457][   T10]      ip6_route_input+0x59c/0xa50
[ 2355.469457][   T10]      ipv6_rcv+0x397/0x810
[ 2355.469457][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2355.469457][   T10]      process_backlog+0x101/0x620
[ 2355.469457][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2355.469457][   T10]      net_rx_action+0x495/0xbe0
[ 2355.469457][   T10]      __do_softirq+0x1b5/0x7f6
[ 2355.469457][   T10] 
[ 2355.471140][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2355.471140][   T10]      netdev_get_by_index+0x5e/0x80
[ 2355.471140][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2355.471140][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2355.471140][   T10]      ip6_route_add+0x1c/0x140
[ 2355.471140][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2355.471140][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2355.471140][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2355.471140][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2355.471140][   T10]      netlink_rcv_skb+0x130/0x360
[ 2355.471140][   T10]      netlink_unicast+0x449/0x710
[ 2355.471140][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2355.471140][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2355.471140][   T10]      ___sys_sendmsg+0xee/0x170
[ 2355.471140][   T10]      __sys_sendmsg+0xcd/0x170
[ 2355.471140][   T10]      do_syscall_64+0xc6/0x1e0
[ 2355.471140][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2355.471140][   T10] 
[ 2355.473215][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2355.473215][   T10]      netdev_get_by_index+0x5e/0x80
[ 2355.473215][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2355.473215][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2355.473215][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2355.473215][   T10]      ipv6_add_addr+0x411/0x2000
[ 2355.473215][   T10]      inet6_addr_add+0x30e/0xa40
[ 2355.473215][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2355.473215][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2355.473215][   T10]      netlink_rcv_skb+0x130/0x360
[ 2355.473215][   T10]      netlink_unicast+0x449/0x710
[ 2355.473215][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2355.473215][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2355.473215][   T10]      ___sys_sendmsg+0xee/0x170
[ 2355.473215][   T10]      __sys_sendmsg+0xcd/0x170
[ 2355.473215][   T10]      do_syscall_64+0xc6/0x1e0
[ 2355.473215][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2355.473215][   T10] 
[ 2355.475262][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2355.475262][   T10]      netdev_get_by_index+0x5e/0x80
[ 2355.475262][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2355.475262][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2355.475262][   T10]      ip6_route_add+0x1c/0x140
[ 2355.475262][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2355.475262][   T10]      addrconf_add_dev+0xe2/0x170
[ 2355.475262][   T10]      inet6_addr_add+0x12f/0xa40
[ 2355.475262][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2355.475262][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2355.475262][   T10]      netlink_rcv_skb+0x130/0x360
[ 2355.475262][   T10]      netlink_unicast+0x449/0x710
[ 2355.475262][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2355.475262][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2355.475262][   T10]      ___sys_sendmsg+0xee/0x170
[ 2355.475262][   T10]      __sys_sendmsg+0xcd/0x170
[ 2355.475262][   T10]      do_syscall_64+0xc6/0x1e0
[ 2355.475262][   T10] 
[ 2355.477276][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2355.477276][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2355.477276][   T10]      ipv6_find_idev+0x102/0x170
[ 2355.477276][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2355.477276][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2355.477276][   T10]      netlink_rcv_skb+0x130/0x360
[ 2355.477276][   T10]      netlink_unicast+0x449/0x710
[ 2355.477276][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2355.477276][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2355.477276][   T10]      ___sys_sendmsg+0xee/0x170
[ 2355.477276][   T10]      __sys_sendmsg+0xcd/0x170
[ 2355.477276][   T10]      do_syscall_64+0xc6/0x1e0
[ 2355.477276][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2355.477276][   T10] 
[ 2355.478853][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2355.478853][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2355.478853][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2355.478853][   T10]      ipv6_find_idev+0x102/0x170
[ 2355.478853][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2355.478853][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2355.478853][   T10]      netlink_rcv_skb+0x130/0x360
[ 2355.478853][   T10]      netlink_unicast+0x449/0x710
[ 2355.478853][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2355.478853][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2355.478853][   T10]      ___sys_sendmsg+0xee/0x170
[ 2355.478853][   T10]      __sys_sendmsg+0xcd/0x170
[ 2355.478853][   T10]      do_syscall_64+0xc6/0x1e0
[ 2355.478853][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2355.478853][   T10] 
[ 2365.721779][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2365.722193][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2365.722193][   T10]      dst_init+0x84/0x4a0
[ 2365.722193][   T10]      dst_alloc+0x97/0x150
[ 2365.722193][   T10]      ip6_dst_alloc+0x23/0x90
[ 2365.722193][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2365.722193][   T10]      ip6_pol_route+0x56f/0x840
[ 2365.722193][   T10]      fib6_rule_lookup+0x456/0x630
[ 2365.722193][   T10]      ip6_route_input+0x59c/0xa50
[ 2365.722193][   T10]      ipv6_rcv+0x397/0x810
[ 2365.722193][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2365.722193][   T10]      process_backlog+0x101/0x620
[ 2365.722193][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2365.722193][   T10]      net_rx_action+0x495/0xbe0
[ 2365.722193][   T10]      __do_softirq+0x1b5/0x7f6
[ 2365.722193][   T10] 
[ 2365.723922][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2365.723922][   T10]      netdev_get_by_index+0x5e/0x80
[ 2365.723922][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2365.723922][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2365.723922][   T10]      ip6_route_add+0x1c/0x140
[ 2365.723922][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2365.723922][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2365.723922][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2365.723922][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2365.723922][   T10]      netlink_rcv_skb+0x130/0x360
[ 2365.723922][   T10]      netlink_unicast+0x449/0x710
[ 2365.723922][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2365.723922][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2365.723922][   T10]      ___sys_sendmsg+0xee/0x170
[ 2365.723922][   T10]      __sys_sendmsg+0xcd/0x170
[ 2365.723922][   T10]      do_syscall_64+0xc6/0x1e0
[ 2365.723922][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2365.723922][   T10] 
[ 2365.725974][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2365.725974][   T10]      netdev_get_by_index+0x5e/0x80
[ 2365.725974][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2365.725974][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2365.725974][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2365.725974][   T10]      ipv6_add_addr+0x411/0x2000
[ 2365.725974][   T10]      inet6_addr_add+0x30e/0xa40
[ 2365.725974][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2365.725974][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2365.725974][   T10]      netlink_rcv_skb+0x130/0x360
[ 2365.725974][   T10]      netlink_unicast+0x449/0x710
[ 2365.725974][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2365.725974][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2365.725974][   T10]      ___sys_sendmsg+0xee/0x170
[ 2365.725974][   T10]      __sys_sendmsg+0xcd/0x170
[ 2365.725974][   T10]      do_syscall_64+0xc6/0x1e0
[ 2365.725974][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2365.725974][   T10] 
[ 2365.728027][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2365.728027][   T10]      netdev_get_by_index+0x5e/0x80
[ 2365.728027][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2365.728027][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2365.728027][   T10]      ip6_route_add+0x1c/0x140
[ 2365.728027][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2365.728027][   T10]      addrconf_add_dev+0xe2/0x170
[ 2365.728027][   T10]      inet6_addr_add+0x12f/0xa40
[ 2365.728027][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2365.728027][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2365.728027][   T10]      netlink_rcv_skb+0x130/0x360
[ 2365.728027][   T10]      netlink_unicast+0x449/0x710
[ 2365.728027][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2365.728027][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2365.728027][   T10]      ___sys_sendmsg+0xee/0x170
[ 2365.728027][   T10]      __sys_sendmsg+0xcd/0x170
[ 2365.728027][   T10]      do_syscall_64+0xc6/0x1e0
[ 2365.728027][   T10] 
[ 2365.730060][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2365.730060][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2365.730060][   T10]      ipv6_find_idev+0x102/0x170
[ 2365.730060][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2365.730060][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2365.730060][   T10]      netlink_rcv_skb+0x130/0x360
[ 2365.730060][   T10]      netlink_unicast+0x449/0x710
[ 2365.730060][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2365.730060][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2365.730060][   T10]      ___sys_sendmsg+0xee/0x170
[ 2365.730060][   T10]      __sys_sendmsg+0xcd/0x170
[ 2365.730060][   T10]      do_syscall_64+0xc6/0x1e0
[ 2365.730060][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2365.730060][   T10] 
[ 2365.731649][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2365.731649][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2365.731649][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2365.731649][   T10]      ipv6_find_idev+0x102/0x170
[ 2365.731649][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2365.731649][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2365.731649][   T10]      netlink_rcv_skb+0x130/0x360
[ 2365.731649][   T10]      netlink_unicast+0x449/0x710
[ 2365.731649][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2365.731649][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2365.731649][   T10]      ___sys_sendmsg+0xee/0x170
[ 2365.731649][   T10]      __sys_sendmsg+0xcd/0x170
[ 2365.731649][   T10]      do_syscall_64+0xc6/0x1e0
[ 2365.731649][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2365.731649][   T10] 
[ 2365.733382][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2365.733630][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2365.733630][   T10]      dst_init+0x84/0x4a0
[ 2365.733630][   T10]      dst_alloc+0x97/0x150
[ 2365.733630][   T10]      ip6_dst_alloc+0x23/0x90
[ 2365.733630][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2365.733630][   T10]      ip6_pol_route+0x56f/0x840
[ 2365.733630][   T10]      fib6_rule_lookup+0x456/0x630
[ 2365.733630][   T10]      ip6_route_input+0x59c/0xa50
[ 2365.733630][   T10]      ipv6_rcv+0x397/0x810
[ 2365.733630][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2365.733630][   T10]      process_backlog+0x101/0x620
[ 2365.733630][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2365.733630][   T10]      net_rx_action+0x495/0xbe0
[ 2365.733630][   T10]      __do_softirq+0x1b5/0x7f6
[ 2365.733630][   T10] 
[ 2365.735306][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2365.735306][   T10]      netdev_get_by_index+0x5e/0x80
[ 2365.735306][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2365.735306][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2365.735306][   T10]      ip6_route_add+0x1c/0x140
[ 2365.735306][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2365.735306][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2365.735306][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2365.735306][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2365.735306][   T10]      netlink_rcv_skb+0x130/0x360
[ 2365.735306][   T10]      netlink_unicast+0x449/0x710
[ 2365.735306][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2365.735306][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2365.735306][   T10]      ___sys_sendmsg+0xee/0x170
[ 2365.735306][   T10]      __sys_sendmsg+0xcd/0x170
[ 2365.735306][   T10]      do_syscall_64+0xc6/0x1e0
[ 2365.735306][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2365.735306][   T10] 
[ 2365.737354][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2365.737354][   T10]      netdev_get_by_index+0x5e/0x80
[ 2365.737354][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2365.737354][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2365.737354][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2365.737354][   T10]      ipv6_add_addr+0x411/0x2000
[ 2365.737354][   T10]      inet6_addr_add+0x30e/0xa40
[ 2365.737354][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2365.737354][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2365.737354][   T10]      netlink_rcv_skb+0x130/0x360
[ 2365.737354][   T10]      netlink_unicast+0x449/0x710
[ 2365.737354][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2365.737354][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2365.737354][   T10]      ___sys_sendmsg+0xee/0x170
[ 2365.737354][   T10]      __sys_sendmsg+0xcd/0x170
[ 2365.737354][   T10]      do_syscall_64+0xc6/0x1e0
[ 2365.737354][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2365.737354][   T10] 
[ 2365.739398][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2365.739398][   T10]      netdev_get_by_index+0x5e/0x80
[ 2365.739398][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2365.739398][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2365.739398][   T10]      ip6_route_add+0x1c/0x140
[ 2365.739398][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2365.739398][   T10]      addrconf_add_dev+0xe2/0x170
[ 2365.739398][   T10]      inet6_addr_add+0x12f/0xa40
[ 2365.739398][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2365.739398][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2365.739398][   T10]      netlink_rcv_skb+0x130/0x360
[ 2365.739398][   T10]      netlink_unicast+0x449/0x710
[ 2365.739398][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2365.739398][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2365.739398][   T10]      ___sys_sendmsg+0xee/0x170
[ 2365.739398][   T10]      __sys_sendmsg+0xcd/0x170
[ 2365.739398][   T10]      do_syscall_64+0xc6/0x1e0
[ 2365.739398][   T10] 
[ 2365.741410][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2365.741410][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2365.741410][   T10]      ipv6_find_idev+0x102/0x170
[ 2365.741410][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2365.741410][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2365.741410][   T10]      netlink_rcv_skb+0x130/0x360
[ 2365.741410][   T10]      netlink_unicast+0x449/0x710
[ 2365.741410][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2365.741410][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2365.741410][   T10]      ___sys_sendmsg+0xee/0x170
[ 2365.741410][   T10]      __sys_sendmsg+0xcd/0x170
[ 2365.741410][   T10]      do_syscall_64+0xc6/0x1e0
[ 2365.741410][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2365.741410][   T10] 
[ 2365.742985][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2365.742985][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2365.742985][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2365.742985][   T10]      ipv6_find_idev+0x102/0x170
[ 2365.742985][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2365.742985][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2365.742985][   T10]      netlink_rcv_skb+0x130/0x360
[ 2365.742985][   T10]      netlink_unicast+0x449/0x710
[ 2365.742985][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2365.742985][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2365.742985][   T10]      ___sys_sendmsg+0xee/0x170
[ 2365.742985][   T10]      __sys_sendmsg+0xcd/0x170
[ 2365.742985][   T10]      do_syscall_64+0xc6/0x1e0
[ 2365.742985][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2365.742985][   T10] 
[ 2375.937795][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2375.938265][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2375.938265][   T10]      dst_init+0x84/0x4a0
[ 2375.938265][   T10]      dst_alloc+0x97/0x150
[ 2375.938265][   T10]      ip6_dst_alloc+0x23/0x90
[ 2375.938265][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2375.938265][   T10]      ip6_pol_route+0x56f/0x840
[ 2375.938265][   T10]      fib6_rule_lookup+0x456/0x630
[ 2375.938265][   T10]      ip6_route_input+0x59c/0xa50
[ 2375.938265][   T10]      ipv6_rcv+0x397/0x810
[ 2375.938265][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2375.938265][   T10]      process_backlog+0x101/0x620
[ 2375.938265][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2375.938265][   T10]      net_rx_action+0x495/0xbe0
[ 2375.938265][   T10]      __do_softirq+0x1b5/0x7f6
[ 2375.938265][   T10] 
[ 2375.940002][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2375.940002][   T10]      netdev_get_by_index+0x5e/0x80
[ 2375.940002][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2375.940002][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2375.940002][   T10]      ip6_route_add+0x1c/0x140
[ 2375.940002][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2375.940002][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2375.940002][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2375.940002][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2375.940002][   T10]      netlink_rcv_skb+0x130/0x360
[ 2375.940002][   T10]      netlink_unicast+0x449/0x710
[ 2375.940002][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2375.940002][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2375.940002][   T10]      ___sys_sendmsg+0xee/0x170
[ 2375.940002][   T10]      __sys_sendmsg+0xcd/0x170
[ 2375.940002][   T10]      do_syscall_64+0xc6/0x1e0
[ 2375.940002][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2375.940002][   T10] 
[ 2375.942077][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2375.942077][   T10]      netdev_get_by_index+0x5e/0x80
[ 2375.942077][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2375.942077][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2375.942077][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2375.942077][   T10]      ipv6_add_addr+0x411/0x2000
[ 2375.942077][   T10]      inet6_addr_add+0x30e/0xa40
[ 2375.942077][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2375.942077][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2375.942077][   T10]      netlink_rcv_skb+0x130/0x360
[ 2375.942077][   T10]      netlink_unicast+0x449/0x710
[ 2375.942077][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2375.942077][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2375.942077][   T10]      ___sys_sendmsg+0xee/0x170
[ 2375.942077][   T10]      __sys_sendmsg+0xcd/0x170
[ 2375.942077][   T10]      do_syscall_64+0xc6/0x1e0
[ 2375.942077][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2375.942077][   T10] 
[ 2375.944142][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2375.944142][   T10]      netdev_get_by_index+0x5e/0x80
[ 2375.944142][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2375.944142][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2375.944142][   T10]      ip6_route_add+0x1c/0x140
[ 2375.944142][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2375.944142][   T10]      addrconf_add_dev+0xe2/0x170
[ 2375.944142][   T10]      inet6_addr_add+0x12f/0xa40
[ 2375.944142][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2375.944142][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2375.944142][   T10]      netlink_rcv_skb+0x130/0x360
[ 2375.944142][   T10]      netlink_unicast+0x449/0x710
[ 2375.944142][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2375.944142][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2375.944142][   T10]      ___sys_sendmsg+0xee/0x170
[ 2375.944142][   T10]      __sys_sendmsg+0xcd/0x170
[ 2375.944142][   T10]      do_syscall_64+0xc6/0x1e0
[ 2375.944142][   T10] 
[ 2375.946155][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2375.946155][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2375.946155][   T10]      ipv6_find_idev+0x102/0x170
[ 2375.946155][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2375.946155][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2375.946155][   T10]      netlink_rcv_skb+0x130/0x360
[ 2375.946155][   T10]      netlink_unicast+0x449/0x710
[ 2375.946155][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2375.946155][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2375.946155][   T10]      ___sys_sendmsg+0xee/0x170
[ 2375.946155][   T10]      __sys_sendmsg+0xcd/0x170
[ 2375.946155][   T10]      do_syscall_64+0xc6/0x1e0
[ 2375.946155][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2375.946155][   T10] 
[ 2375.947753][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2375.947753][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2375.947753][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2375.947753][   T10]      ipv6_find_idev+0x102/0x170
[ 2375.947753][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2375.947753][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2375.947753][   T10]      netlink_rcv_skb+0x130/0x360
[ 2375.947753][   T10]      netlink_unicast+0x449/0x710
[ 2375.947753][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2375.947753][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2375.947753][   T10]      ___sys_sendmsg+0xee/0x170
[ 2375.947753][   T10]      __sys_sendmsg+0xcd/0x170
[ 2375.947753][   T10]      do_syscall_64+0xc6/0x1e0
[ 2375.947753][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2375.947753][   T10] 
[ 2375.949487][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2375.949749][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2375.949749][   T10]      dst_init+0x84/0x4a0
[ 2375.949749][   T10]      dst_alloc+0x97/0x150
[ 2375.949749][   T10]      ip6_dst_alloc+0x23/0x90
[ 2375.949749][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2375.949749][   T10]      ip6_pol_route+0x56f/0x840
[ 2375.949749][   T10]      fib6_rule_lookup+0x456/0x630
[ 2375.949749][   T10]      ip6_route_input+0x59c/0xa50
[ 2375.949749][   T10]      ipv6_rcv+0x397/0x810
[ 2375.949749][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2375.949749][   T10]      process_backlog+0x101/0x620
[ 2375.949749][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2375.949749][   T10]      net_rx_action+0x495/0xbe0
[ 2375.949749][   T10]      __do_softirq+0x1b5/0x7f6
[ 2375.949749][   T10] 
[ 2375.951446][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2375.951446][   T10]      netdev_get_by_index+0x5e/0x80
[ 2375.951446][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2375.951446][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2375.951446][   T10]      ip6_route_add+0x1c/0x140
[ 2375.951446][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2375.951446][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2375.951446][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2375.951446][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2375.951446][   T10]      netlink_rcv_skb+0x130/0x360
[ 2375.951446][   T10]      netlink_unicast+0x449/0x710
[ 2375.951446][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2375.951446][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2375.951446][   T10]      ___sys_sendmsg+0xee/0x170
[ 2375.951446][   T10]      __sys_sendmsg+0xcd/0x170
[ 2375.951446][   T10]      do_syscall_64+0xc6/0x1e0
[ 2375.951446][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2375.951446][   T10] 
[ 2375.953501][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2375.953501][   T10]      netdev_get_by_index+0x5e/0x80
[ 2375.953501][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2375.953501][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2375.953501][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2375.953501][   T10]      ipv6_add_addr+0x411/0x2000
[ 2375.953501][   T10]      inet6_addr_add+0x30e/0xa40
[ 2375.953501][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2375.953501][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2375.953501][   T10]      netlink_rcv_skb+0x130/0x360
[ 2375.953501][   T10]      netlink_unicast+0x449/0x710
[ 2375.953501][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2375.953501][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2375.953501][   T10]      ___sys_sendmsg+0xee/0x170
[ 2375.953501][   T10]      __sys_sendmsg+0xcd/0x170
[ 2375.953501][   T10]      do_syscall_64+0xc6/0x1e0
[ 2375.953501][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2375.953501][   T10] 
[ 2375.955548][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2375.955548][   T10]      netdev_get_by_index+0x5e/0x80
[ 2375.955548][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2375.955548][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2375.955548][   T10]      ip6_route_add+0x1c/0x140
[ 2375.955548][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2375.955548][   T10]      addrconf_add_dev+0xe2/0x170
[ 2375.955548][   T10]      inet6_addr_add+0x12f/0xa40
[ 2375.955548][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2375.955548][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2375.955548][   T10]      netlink_rcv_skb+0x130/0x360
[ 2375.955548][   T10]      netlink_unicast+0x449/0x710
[ 2375.955548][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2375.955548][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2375.955548][   T10]      ___sys_sendmsg+0xee/0x170
[ 2375.955548][   T10]      __sys_sendmsg+0xcd/0x170
[ 2375.955548][   T10]      do_syscall_64+0xc6/0x1e0
[ 2375.955548][   T10] 
[ 2375.957559][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2375.957559][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2375.957559][   T10]      ipv6_find_idev+0x102/0x170
[ 2375.957559][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2375.957559][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2375.957559][   T10]      netlink_rcv_skb+0x130/0x360
[ 2375.957559][   T10]      netlink_unicast+0x449/0x710
[ 2375.957559][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2375.957559][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2375.957559][   T10]      ___sys_sendmsg+0xee/0x170
[ 2375.957559][   T10]      __sys_sendmsg+0xcd/0x170
[ 2375.957559][   T10]      do_syscall_64+0xc6/0x1e0
[ 2375.957559][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2375.957559][   T10] 
[ 2375.959132][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2375.959132][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2375.959132][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2375.959132][   T10]      ipv6_find_idev+0x102/0x170
[ 2375.959132][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2375.959132][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2375.959132][   T10]      netlink_rcv_skb+0x130/0x360
[ 2375.959132][   T10]      netlink_unicast+0x449/0x710
[ 2375.959132][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2375.959132][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2375.959132][   T10]      ___sys_sendmsg+0xee/0x170
[ 2375.959132][   T10]      __sys_sendmsg+0xcd/0x170
[ 2375.959132][   T10]      do_syscall_64+0xc6/0x1e0
[ 2375.959132][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2375.959132][   T10] 
[ 2386.017795][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2386.018268][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2386.018268][   T10]      dst_init+0x84/0x4a0
[ 2386.018268][   T10]      dst_alloc+0x97/0x150
[ 2386.018268][   T10]      ip6_dst_alloc+0x23/0x90
[ 2386.018268][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2386.018268][   T10]      ip6_pol_route+0x56f/0x840
[ 2386.018268][   T10]      fib6_rule_lookup+0x456/0x630
[ 2386.018268][   T10]      ip6_route_input+0x59c/0xa50
[ 2386.018268][   T10]      ipv6_rcv+0x397/0x810
[ 2386.018268][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2386.018268][   T10]      process_backlog+0x101/0x620
[ 2386.018268][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2386.018268][   T10]      net_rx_action+0x495/0xbe0
[ 2386.018268][   T10]      __do_softirq+0x1b5/0x7f6
[ 2386.018268][   T10] 
[ 2386.019995][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2386.019995][   T10]      netdev_get_by_index+0x5e/0x80
[ 2386.019995][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2386.019995][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2386.019995][   T10]      ip6_route_add+0x1c/0x140
[ 2386.019995][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2386.019995][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2386.019995][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2386.019995][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2386.019995][   T10]      netlink_rcv_skb+0x130/0x360
[ 2386.019995][   T10]      netlink_unicast+0x449/0x710
[ 2386.019995][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2386.019995][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2386.019995][   T10]      ___sys_sendmsg+0xee/0x170
[ 2386.019995][   T10]      __sys_sendmsg+0xcd/0x170
[ 2386.019995][   T10]      do_syscall_64+0xc6/0x1e0
[ 2386.019995][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2386.019995][   T10] 
[ 2386.022077][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2386.022077][   T10]      netdev_get_by_index+0x5e/0x80
[ 2386.022077][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2386.022077][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2386.022077][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2386.022077][   T10]      ipv6_add_addr+0x411/0x2000
[ 2386.022077][   T10]      inet6_addr_add+0x30e/0xa40
[ 2386.022077][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2386.022077][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2386.022077][   T10]      netlink_rcv_skb+0x130/0x360
[ 2386.022077][   T10]      netlink_unicast+0x449/0x710
[ 2386.022077][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2386.022077][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2386.022077][   T10]      ___sys_sendmsg+0xee/0x170
[ 2386.022077][   T10]      __sys_sendmsg+0xcd/0x170
[ 2386.022077][   T10]      do_syscall_64+0xc6/0x1e0
[ 2386.022077][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2386.022077][   T10] 
[ 2386.024730][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2386.024730][   T10]      netdev_get_by_index+0x5e/0x80
[ 2386.024730][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2386.024730][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2386.024730][   T10]      ip6_route_add+0x1c/0x140
[ 2386.024730][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2386.024730][   T10]      addrconf_add_dev+0xe2/0x170
[ 2386.024730][   T10]      inet6_addr_add+0x12f/0xa40
[ 2386.024730][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2386.024730][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2386.024730][   T10]      netlink_rcv_skb+0x130/0x360
[ 2386.024730][   T10]      netlink_unicast+0x449/0x710
[ 2386.024730][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2386.024730][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2386.024730][   T10]      ___sys_sendmsg+0xee/0x170
[ 2386.024730][   T10]      __sys_sendmsg+0xcd/0x170
[ 2386.024730][   T10]      do_syscall_64+0xc6/0x1e0
[ 2386.024730][   T10] 
[ 2386.026757][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2386.026757][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2386.026757][   T10]      ipv6_find_idev+0x102/0x170
[ 2386.026757][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2386.026757][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2386.026757][   T10]      netlink_rcv_skb+0x130/0x360
[ 2386.026757][   T10]      netlink_unicast+0x449/0x710
[ 2386.026757][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2386.026757][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2386.026757][   T10]      ___sys_sendmsg+0xee/0x170
[ 2386.026757][   T10]      __sys_sendmsg+0xcd/0x170
[ 2386.026757][   T10]      do_syscall_64+0xc6/0x1e0
[ 2386.026757][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2386.026757][   T10] 
[ 2386.028336][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2386.028336][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2386.028336][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2386.028336][   T10]      ipv6_find_idev+0x102/0x170
[ 2386.028336][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2386.028336][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2386.028336][   T10]      netlink_rcv_skb+0x130/0x360
[ 2386.028336][   T10]      netlink_unicast+0x449/0x710
[ 2386.028336][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2386.028336][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2386.028336][   T10]      ___sys_sendmsg+0xee/0x170
[ 2386.028336][   T10]      __sys_sendmsg+0xcd/0x170
[ 2386.028336][   T10]      do_syscall_64+0xc6/0x1e0
[ 2386.028336][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2386.028336][   T10] 
[ 2386.030461][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2386.030717][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2386.030717][   T10]      dst_init+0x84/0x4a0
[ 2386.030717][   T10]      dst_alloc+0x97/0x150
[ 2386.030717][   T10]      ip6_dst_alloc+0x23/0x90
[ 2386.030717][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2386.030717][   T10]      ip6_pol_route+0x56f/0x840
[ 2386.030717][   T10]      fib6_rule_lookup+0x456/0x630
[ 2386.030717][   T10]      ip6_route_input+0x59c/0xa50
[ 2386.030717][   T10]      ipv6_rcv+0x397/0x810
[ 2386.030717][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2386.030717][   T10]      process_backlog+0x101/0x620
[ 2386.030717][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2386.030717][   T10]      net_rx_action+0x495/0xbe0
[ 2386.030717][   T10]      __do_softirq+0x1b5/0x7f6
[ 2386.030717][   T10] 
[ 2386.032403][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2386.032403][   T10]      netdev_get_by_index+0x5e/0x80
[ 2386.032403][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2386.032403][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2386.032403][   T10]      ip6_route_add+0x1c/0x140
[ 2386.032403][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2386.032403][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2386.032403][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2386.032403][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2386.032403][   T10]      netlink_rcv_skb+0x130/0x360
[ 2386.032403][   T10]      netlink_unicast+0x449/0x710
[ 2386.032403][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2386.032403][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2386.032403][   T10]      ___sys_sendmsg+0xee/0x170
[ 2386.032403][   T10]      __sys_sendmsg+0xcd/0x170
[ 2386.032403][   T10]      do_syscall_64+0xc6/0x1e0
[ 2386.032403][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2386.032403][   T10] 
[ 2386.034450][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2386.034450][   T10]      netdev_get_by_index+0x5e/0x80
[ 2386.034450][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2386.034450][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2386.034450][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2386.034450][   T10]      ipv6_add_addr+0x411/0x2000
[ 2386.034450][   T10]      inet6_addr_add+0x30e/0xa40
[ 2386.034450][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2386.034450][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2386.034450][   T10]      netlink_rcv_skb+0x130/0x360
[ 2386.034450][   T10]      netlink_unicast+0x449/0x710
[ 2386.034450][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2386.034450][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2386.034450][   T10]      ___sys_sendmsg+0xee/0x170
[ 2386.034450][   T10]      __sys_sendmsg+0xcd/0x170
[ 2386.034450][   T10]      do_syscall_64+0xc6/0x1e0
[ 2386.034450][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2386.034450][   T10] 
[ 2386.036498][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2386.036498][   T10]      netdev_get_by_index+0x5e/0x80
[ 2386.036498][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2386.036498][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2386.036498][   T10]      ip6_route_add+0x1c/0x140
[ 2386.036498][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2386.036498][   T10]      addrconf_add_dev+0xe2/0x170
[ 2386.036498][   T10]      inet6_addr_add+0x12f/0xa40
[ 2386.036498][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2386.036498][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2386.036498][   T10]      netlink_rcv_skb+0x130/0x360
[ 2386.036498][   T10]      netlink_unicast+0x449/0x710
[ 2386.036498][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2386.036498][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2386.036498][   T10]      ___sys_sendmsg+0xee/0x170
[ 2386.036498][   T10]      __sys_sendmsg+0xcd/0x170
[ 2386.036498][   T10]      do_syscall_64+0xc6/0x1e0
[ 2386.036498][   T10] 
[ 2386.038502][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2386.038502][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2386.038502][   T10]      ipv6_find_idev+0x102/0x170
[ 2386.038502][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2386.038502][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2386.038502][   T10]      netlink_rcv_skb+0x130/0x360
[ 2386.038502][   T10]      netlink_unicast+0x449/0x710
[ 2386.038502][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2386.038502][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2386.038502][   T10]      ___sys_sendmsg+0xee/0x170
[ 2386.038502][   T10]      __sys_sendmsg+0xcd/0x170
[ 2386.038502][   T10]      do_syscall_64+0xc6/0x1e0
[ 2386.038502][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2386.038502][   T10] 
[ 2386.040082][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2386.040082][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2386.040082][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2386.040082][   T10]      ipv6_find_idev+0x102/0x170
[ 2386.040082][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2386.040082][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2386.040082][   T10]      netlink_rcv_skb+0x130/0x360
[ 2386.040082][   T10]      netlink_unicast+0x449/0x710
[ 2386.040082][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2386.040082][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2386.040082][   T10]      ___sys_sendmsg+0xee/0x170
[ 2386.040082][   T10]      __sys_sendmsg+0xcd/0x170
[ 2386.040082][   T10]      do_syscall_64+0xc6/0x1e0
[ 2386.040082][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2386.040082][   T10] 
[ 2396.297827][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2396.298317][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2396.298317][   T10]      dst_init+0x84/0x4a0
[ 2396.298317][   T10]      dst_alloc+0x97/0x150
[ 2396.298317][   T10]      ip6_dst_alloc+0x23/0x90
[ 2396.298317][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2396.298317][   T10]      ip6_pol_route+0x56f/0x840
[ 2396.298317][   T10]      fib6_rule_lookup+0x456/0x630
[ 2396.298317][   T10]      ip6_route_input+0x59c/0xa50
[ 2396.298317][   T10]      ipv6_rcv+0x397/0x810
[ 2396.298317][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2396.298317][   T10]      process_backlog+0x101/0x620
[ 2396.298317][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2396.298317][   T10]      net_rx_action+0x495/0xbe0
[ 2396.298317][   T10]      __do_softirq+0x1b5/0x7f6
[ 2396.298317][   T10] 
[ 2396.300057][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2396.300057][   T10]      netdev_get_by_index+0x5e/0x80
[ 2396.300057][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2396.300057][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2396.300057][   T10]      ip6_route_add+0x1c/0x140
[ 2396.300057][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2396.300057][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2396.300057][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2396.300057][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2396.300057][   T10]      netlink_rcv_skb+0x130/0x360
[ 2396.300057][   T10]      netlink_unicast+0x449/0x710
[ 2396.300057][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2396.300057][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2396.300057][   T10]      ___sys_sendmsg+0xee/0x170
[ 2396.300057][   T10]      __sys_sendmsg+0xcd/0x170
[ 2396.300057][   T10]      do_syscall_64+0xc6/0x1e0
[ 2396.300057][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2396.300057][   T10] 
[ 2396.302157][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2396.302157][   T10]      netdev_get_by_index+0x5e/0x80
[ 2396.302157][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2396.302157][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2396.302157][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2396.302157][   T10]      ipv6_add_addr+0x411/0x2000
[ 2396.302157][   T10]      inet6_addr_add+0x30e/0xa40
[ 2396.302157][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2396.302157][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2396.302157][   T10]      netlink_rcv_skb+0x130/0x360
[ 2396.302157][   T10]      netlink_unicast+0x449/0x710
[ 2396.302157][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2396.302157][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2396.302157][   T10]      ___sys_sendmsg+0xee/0x170
[ 2396.302157][   T10]      __sys_sendmsg+0xcd/0x170
[ 2396.302157][   T10]      do_syscall_64+0xc6/0x1e0
[ 2396.302157][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2396.302157][   T10] 
[ 2396.304229][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2396.304229][   T10]      netdev_get_by_index+0x5e/0x80
[ 2396.304229][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2396.304229][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2396.304229][   T10]      ip6_route_add+0x1c/0x140
[ 2396.304229][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2396.304229][   T10]      addrconf_add_dev+0xe2/0x170
[ 2396.304229][   T10]      inet6_addr_add+0x12f/0xa40
[ 2396.304229][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2396.304229][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2396.304229][   T10]      netlink_rcv_skb+0x130/0x360
[ 2396.304229][   T10]      netlink_unicast+0x449/0x710
[ 2396.304229][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2396.304229][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2396.304229][   T10]      ___sys_sendmsg+0xee/0x170
[ 2396.304229][   T10]      __sys_sendmsg+0xcd/0x170
[ 2396.304229][   T10]      do_syscall_64+0xc6/0x1e0
[ 2396.304229][   T10] 
[ 2396.306270][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2396.306270][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2396.306270][   T10]      ipv6_find_idev+0x102/0x170
[ 2396.306270][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2396.306270][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2396.306270][   T10]      netlink_rcv_skb+0x130/0x360
[ 2396.306270][   T10]      netlink_unicast+0x449/0x710
[ 2396.306270][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2396.306270][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2396.306270][   T10]      ___sys_sendmsg+0xee/0x170
[ 2396.306270][   T10]      __sys_sendmsg+0xcd/0x170
[ 2396.306270][   T10]      do_syscall_64+0xc6/0x1e0
[ 2396.306270][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2396.306270][   T10] 
[ 2396.307869][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2396.307869][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2396.307869][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2396.307869][   T10]      ipv6_find_idev+0x102/0x170
[ 2396.307869][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2396.307869][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2396.307869][   T10]      netlink_rcv_skb+0x130/0x360
[ 2396.307869][   T10]      netlink_unicast+0x449/0x710
[ 2396.307869][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2396.307869][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2396.307869][   T10]      ___sys_sendmsg+0xee/0x170
[ 2396.307869][   T10]      __sys_sendmsg+0xcd/0x170
[ 2396.307869][   T10]      do_syscall_64+0xc6/0x1e0
[ 2396.307869][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2396.307869][   T10] 
[ 2396.309627][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2396.309898][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2396.309898][   T10]      dst_init+0x84/0x4a0
[ 2396.309898][   T10]      dst_alloc+0x97/0x150
[ 2396.309898][   T10]      ip6_dst_alloc+0x23/0x90
[ 2396.309898][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2396.309898][   T10]      ip6_pol_route+0x56f/0x840
[ 2396.309898][   T10]      fib6_rule_lookup+0x456/0x630
[ 2396.309898][   T10]      ip6_route_input+0x59c/0xa50
[ 2396.309898][   T10]      ipv6_rcv+0x397/0x810
[ 2396.309898][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2396.309898][   T10]      process_backlog+0x101/0x620
[ 2396.309898][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2396.309898][   T10]      net_rx_action+0x495/0xbe0
[ 2396.309898][   T10]      __do_softirq+0x1b5/0x7f6
[ 2396.309898][   T10] 
[ 2396.311605][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2396.311605][   T10]      netdev_get_by_index+0x5e/0x80
[ 2396.311605][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2396.311605][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2396.311605][   T10]      ip6_route_add+0x1c/0x140
[ 2396.311605][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2396.311605][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2396.311605][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2396.311605][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2396.311605][   T10]      netlink_rcv_skb+0x130/0x360
[ 2396.311605][   T10]      netlink_unicast+0x449/0x710
[ 2396.311605][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2396.311605][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2396.311605][   T10]      ___sys_sendmsg+0xee/0x170
[ 2396.311605][   T10]      __sys_sendmsg+0xcd/0x170
[ 2396.311605][   T10]      do_syscall_64+0xc6/0x1e0
[ 2396.311605][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2396.311605][   T10] 
[ 2396.313677][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2396.313677][   T10]      netdev_get_by_index+0x5e/0x80
[ 2396.313677][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2396.313677][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2396.313677][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2396.313677][   T10]      ipv6_add_addr+0x411/0x2000
[ 2396.313677][   T10]      inet6_addr_add+0x30e/0xa40
[ 2396.313677][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2396.313677][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2396.313677][   T10]      netlink_rcv_skb+0x130/0x360
[ 2396.313677][   T10]      netlink_unicast+0x449/0x710
[ 2396.313677][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2396.313677][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2396.313677][   T10]      ___sys_sendmsg+0xee/0x170
[ 2396.313677][   T10]      __sys_sendmsg+0xcd/0x170
[ 2396.313677][   T10]      do_syscall_64+0xc6/0x1e0
[ 2396.313677][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2396.313677][   T10] 
[ 2396.315750][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2396.315750][   T10]      netdev_get_by_index+0x5e/0x80
[ 2396.315750][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2396.315750][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2396.315750][   T10]      ip6_route_add+0x1c/0x140
[ 2396.315750][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2396.315750][   T10]      addrconf_add_dev+0xe2/0x170
[ 2396.315750][   T10]      inet6_addr_add+0x12f/0xa40
[ 2396.315750][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2396.315750][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2396.315750][   T10]      netlink_rcv_skb+0x130/0x360
[ 2396.315750][   T10]      netlink_unicast+0x449/0x710
[ 2396.315750][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2396.315750][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2396.315750][   T10]      ___sys_sendmsg+0xee/0x170
[ 2396.315750][   T10]      __sys_sendmsg+0xcd/0x170
[ 2396.315750][   T10]      do_syscall_64+0xc6/0x1e0
[ 2396.315750][   T10] 
[ 2396.317781][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2396.317781][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2396.317781][   T10]      ipv6_find_idev+0x102/0x170
[ 2396.317781][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2396.317781][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2396.317781][   T10]      netlink_rcv_skb+0x130/0x360
[ 2396.317781][   T10]      netlink_unicast+0x449/0x710
[ 2396.317781][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2396.317781][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2396.317781][   T10]      ___sys_sendmsg+0xee/0x170
[ 2396.317781][   T10]      __sys_sendmsg+0xcd/0x170
[ 2396.317781][   T10]      do_syscall_64+0xc6/0x1e0
[ 2396.317781][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2396.317781][   T10] 
[ 2396.319374][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2396.319374][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2396.319374][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2396.319374][   T10]      ipv6_find_idev+0x102/0x170
[ 2396.319374][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2396.319374][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2396.319374][   T10]      netlink_rcv_skb+0x130/0x360
[ 2396.319374][   T10]      netlink_unicast+0x449/0x710
[ 2396.319374][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2396.319374][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2396.319374][   T10]      ___sys_sendmsg+0xee/0x170
[ 2396.319374][   T10]      __sys_sendmsg+0xcd/0x170
[ 2396.319374][   T10]      do_syscall_64+0xc6/0x1e0
[ 2396.319374][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2396.319374][   T10] 
[ 2406.441779][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2406.442272][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2406.442272][   T10]      dst_init+0x84/0x4a0
[ 2406.442272][   T10]      dst_alloc+0x97/0x150
[ 2406.442272][   T10]      ip6_dst_alloc+0x23/0x90
[ 2406.442272][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2406.442272][   T10]      ip6_pol_route+0x56f/0x840
[ 2406.442272][   T10]      fib6_rule_lookup+0x456/0x630
[ 2406.442272][   T10]      ip6_route_input+0x59c/0xa50
[ 2406.442272][   T10]      ipv6_rcv+0x397/0x810
[ 2406.442272][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2406.442272][   T10]      process_backlog+0x101/0x620
[ 2406.442272][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2406.442272][   T10]      net_rx_action+0x495/0xbe0
[ 2406.442272][   T10]      __do_softirq+0x1b5/0x7f6
[ 2406.442272][   T10] 
[ 2406.444026][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2406.444026][   T10]      netdev_get_by_index+0x5e/0x80
[ 2406.444026][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2406.444026][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2406.444026][   T10]      ip6_route_add+0x1c/0x140
[ 2406.444026][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2406.444026][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2406.444026][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2406.444026][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2406.444026][   T10]      netlink_rcv_skb+0x130/0x360
[ 2406.444026][   T10]      netlink_unicast+0x449/0x710
[ 2406.444026][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2406.444026][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2406.444026][   T10]      ___sys_sendmsg+0xee/0x170
[ 2406.444026][   T10]      __sys_sendmsg+0xcd/0x170
[ 2406.444026][   T10]      do_syscall_64+0xc6/0x1e0
[ 2406.444026][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2406.444026][   T10] 
[ 2406.446107][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2406.446107][   T10]      netdev_get_by_index+0x5e/0x80
[ 2406.446107][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2406.446107][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2406.446107][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2406.446107][   T10]      ipv6_add_addr+0x411/0x2000
[ 2406.446107][   T10]      inet6_addr_add+0x30e/0xa40
[ 2406.446107][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2406.446107][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2406.446107][   T10]      netlink_rcv_skb+0x130/0x360
[ 2406.446107][   T10]      netlink_unicast+0x449/0x710
[ 2406.446107][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2406.446107][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2406.446107][   T10]      ___sys_sendmsg+0xee/0x170
[ 2406.446107][   T10]      __sys_sendmsg+0xcd/0x170
[ 2406.446107][   T10]      do_syscall_64+0xc6/0x1e0
[ 2406.446107][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2406.446107][   T10] 
[ 2406.448179][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2406.448179][   T10]      netdev_get_by_index+0x5e/0x80
[ 2406.448179][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2406.448179][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2406.448179][   T10]      ip6_route_add+0x1c/0x140
[ 2406.448179][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2406.448179][   T10]      addrconf_add_dev+0xe2/0x170
[ 2406.448179][   T10]      inet6_addr_add+0x12f/0xa40
[ 2406.448179][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2406.448179][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2406.448179][   T10]      netlink_rcv_skb+0x130/0x360
[ 2406.448179][   T10]      netlink_unicast+0x449/0x710
[ 2406.448179][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2406.448179][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2406.448179][   T10]      ___sys_sendmsg+0xee/0x170
[ 2406.448179][   T10]      __sys_sendmsg+0xcd/0x170
[ 2406.448179][   T10]      do_syscall_64+0xc6/0x1e0
[ 2406.448179][   T10] 
[ 2406.450215][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2406.450215][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2406.450215][   T10]      ipv6_find_idev+0x102/0x170
[ 2406.450215][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2406.450215][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2406.450215][   T10]      netlink_rcv_skb+0x130/0x360
[ 2406.450215][   T10]      netlink_unicast+0x449/0x710
[ 2406.450215][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2406.450215][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2406.450215][   T10]      ___sys_sendmsg+0xee/0x170
[ 2406.450215][   T10]      __sys_sendmsg+0xcd/0x170
[ 2406.450215][   T10]      do_syscall_64+0xc6/0x1e0
[ 2406.450215][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2406.450215][   T10] 
[ 2406.451814][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2406.451814][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2406.451814][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2406.451814][   T10]      ipv6_find_idev+0x102/0x170
[ 2406.451814][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2406.451814][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2406.451814][   T10]      netlink_rcv_skb+0x130/0x360
[ 2406.451814][   T10]      netlink_unicast+0x449/0x710
[ 2406.451814][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2406.451814][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2406.451814][   T10]      ___sys_sendmsg+0xee/0x170
[ 2406.451814][   T10]      __sys_sendmsg+0xcd/0x170
[ 2406.451814][   T10]      do_syscall_64+0xc6/0x1e0
[ 2406.451814][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2406.451814][   T10] 
[ 2406.453573][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2406.453842][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2406.453842][   T10]      dst_init+0x84/0x4a0
[ 2406.453842][   T10]      dst_alloc+0x97/0x150
[ 2406.453842][   T10]      ip6_dst_alloc+0x23/0x90
[ 2406.453842][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2406.453842][   T10]      ip6_pol_route+0x56f/0x840
[ 2406.453842][   T10]      fib6_rule_lookup+0x456/0x630
[ 2406.453842][   T10]      ip6_route_input+0x59c/0xa50
[ 2406.453842][   T10]      ipv6_rcv+0x397/0x810
[ 2406.453842][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2406.453842][   T10]      process_backlog+0x101/0x620
[ 2406.453842][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2406.453842][   T10]      net_rx_action+0x495/0xbe0
[ 2406.453842][   T10]      __do_softirq+0x1b5/0x7f6
[ 2406.453842][   T10] 
[ 2406.455539][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2406.455539][   T10]      netdev_get_by_index+0x5e/0x80
[ 2406.455539][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2406.455539][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2406.455539][   T10]      ip6_route_add+0x1c/0x140
[ 2406.455539][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2406.455539][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2406.455539][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2406.455539][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2406.455539][   T10]      netlink_rcv_skb+0x130/0x360
[ 2406.455539][   T10]      netlink_unicast+0x449/0x710
[ 2406.455539][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2406.455539][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2406.455539][   T10]      ___sys_sendmsg+0xee/0x170
[ 2406.455539][   T10]      __sys_sendmsg+0xcd/0x170
[ 2406.455539][   T10]      do_syscall_64+0xc6/0x1e0
[ 2406.455539][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2406.455539][   T10] 
[ 2406.457609][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2406.457609][   T10]      netdev_get_by_index+0x5e/0x80
[ 2406.457609][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2406.457609][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2406.457609][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2406.457609][   T10]      ipv6_add_addr+0x411/0x2000
[ 2406.457609][   T10]      inet6_addr_add+0x30e/0xa40
[ 2406.457609][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2406.457609][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2406.457609][   T10]      netlink_rcv_skb+0x130/0x360
[ 2406.457609][   T10]      netlink_unicast+0x449/0x710
[ 2406.457609][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2406.457609][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2406.457609][   T10]      ___sys_sendmsg+0xee/0x170
[ 2406.457609][   T10]      __sys_sendmsg+0xcd/0x170
[ 2406.457609][   T10]      do_syscall_64+0xc6/0x1e0
[ 2406.457609][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2406.457609][   T10] 
[ 2406.459671][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2406.459671][   T10]      netdev_get_by_index+0x5e/0x80
[ 2406.459671][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2406.459671][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2406.459671][   T10]      ip6_route_add+0x1c/0x140
[ 2406.459671][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2406.459671][   T10]      addrconf_add_dev+0xe2/0x170
[ 2406.459671][   T10]      inet6_addr_add+0x12f/0xa40
[ 2406.459671][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2406.459671][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2406.459671][   T10]      netlink_rcv_skb+0x130/0x360
[ 2406.459671][   T10]      netlink_unicast+0x449/0x710
[ 2406.459671][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2406.459671][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2406.459671][   T10]      ___sys_sendmsg+0xee/0x170
[ 2406.459671][   T10]      __sys_sendmsg+0xcd/0x170
[ 2406.459671][   T10]      do_syscall_64+0xc6/0x1e0
[ 2406.459671][   T10] 
[ 2406.461712][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2406.461712][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2406.461712][   T10]      ipv6_find_idev+0x102/0x170
[ 2406.461712][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2406.461712][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2406.461712][   T10]      netlink_rcv_skb+0x130/0x360
[ 2406.461712][   T10]      netlink_unicast+0x449/0x710
[ 2406.461712][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2406.461712][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2406.461712][   T10]      ___sys_sendmsg+0xee/0x170
[ 2406.461712][   T10]      __sys_sendmsg+0xcd/0x170
[ 2406.461712][   T10]      do_syscall_64+0xc6/0x1e0
[ 2406.461712][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2406.461712][   T10] 
[ 2406.463300][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2406.463300][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2406.463300][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2406.463300][   T10]      ipv6_find_idev+0x102/0x170
[ 2406.463300][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2406.463300][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2406.463300][   T10]      netlink_rcv_skb+0x130/0x360
[ 2406.463300][   T10]      netlink_unicast+0x449/0x710
[ 2406.463300][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2406.463300][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2406.463300][   T10]      ___sys_sendmsg+0xee/0x170
[ 2406.463300][   T10]      __sys_sendmsg+0xcd/0x170
[ 2406.463300][   T10]      do_syscall_64+0xc6/0x1e0
[ 2406.463300][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2406.463300][   T10] 
[ 2416.705791][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2416.706197][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2416.706197][   T10]      dst_init+0x84/0x4a0
[ 2416.706197][   T10]      dst_alloc+0x97/0x150
[ 2416.706197][   T10]      ip6_dst_alloc+0x23/0x90
[ 2416.706197][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2416.706197][   T10]      ip6_pol_route+0x56f/0x840
[ 2416.706197][   T10]      fib6_rule_lookup+0x456/0x630
[ 2416.706197][   T10]      ip6_route_input+0x59c/0xa50
[ 2416.706197][   T10]      ipv6_rcv+0x397/0x810
[ 2416.706197][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2416.706197][   T10]      process_backlog+0x101/0x620
[ 2416.706197][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2416.706197][   T10]      net_rx_action+0x495/0xbe0
[ 2416.706197][   T10]      __do_softirq+0x1b5/0x7f6
[ 2416.706197][   T10] 
[ 2416.707930][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2416.707930][   T10]      netdev_get_by_index+0x5e/0x80
[ 2416.707930][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2416.707930][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2416.707930][   T10]      ip6_route_add+0x1c/0x140
[ 2416.707930][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2416.707930][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2416.707930][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2416.707930][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2416.707930][   T10]      netlink_rcv_skb+0x130/0x360
[ 2416.707930][   T10]      netlink_unicast+0x449/0x710
[ 2416.707930][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2416.707930][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2416.707930][   T10]      ___sys_sendmsg+0xee/0x170
[ 2416.707930][   T10]      __sys_sendmsg+0xcd/0x170
[ 2416.707930][   T10]      do_syscall_64+0xc6/0x1e0
[ 2416.707930][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2416.707930][   T10] 
[ 2416.709988][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2416.709988][   T10]      netdev_get_by_index+0x5e/0x80
[ 2416.709988][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2416.709988][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2416.709988][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2416.709988][   T10]      ipv6_add_addr+0x411/0x2000
[ 2416.709988][   T10]      inet6_addr_add+0x30e/0xa40
[ 2416.709988][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2416.709988][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2416.709988][   T10]      netlink_rcv_skb+0x130/0x360
[ 2416.709988][   T10]      netlink_unicast+0x449/0x710
[ 2416.709988][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2416.709988][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2416.709988][   T10]      ___sys_sendmsg+0xee/0x170
[ 2416.709988][   T10]      __sys_sendmsg+0xcd/0x170
[ 2416.709988][   T10]      do_syscall_64+0xc6/0x1e0
[ 2416.709988][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2416.709988][   T10] 
[ 2416.712066][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2416.712066][   T10]      netdev_get_by_index+0x5e/0x80
[ 2416.712066][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2416.712066][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2416.712066][   T10]      ip6_route_add+0x1c/0x140
[ 2416.712066][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2416.712066][   T10]      addrconf_add_dev+0xe2/0x170
[ 2416.712066][   T10]      inet6_addr_add+0x12f/0xa40
[ 2416.712066][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2416.712066][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2416.712066][   T10]      netlink_rcv_skb+0x130/0x360
[ 2416.712066][   T10]      netlink_unicast+0x449/0x710
[ 2416.712066][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2416.712066][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2416.712066][   T10]      ___sys_sendmsg+0xee/0x170
[ 2416.712066][   T10]      __sys_sendmsg+0xcd/0x170
[ 2416.712066][   T10]      do_syscall_64+0xc6/0x1e0
[ 2416.712066][   T10] 
[ 2416.714144][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2416.714144][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2416.714144][   T10]      ipv6_find_idev+0x102/0x170
[ 2416.714144][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2416.714144][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2416.714144][   T10]      netlink_rcv_skb+0x130/0x360
[ 2416.714144][   T10]      netlink_unicast+0x449/0x710
[ 2416.714144][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2416.714144][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2416.714144][   T10]      ___sys_sendmsg+0xee/0x170
[ 2416.714144][   T10]      __sys_sendmsg+0xcd/0x170
[ 2416.714144][   T10]      do_syscall_64+0xc6/0x1e0
[ 2416.714144][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2416.714144][   T10] 
[ 2416.715685][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2416.715685][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2416.715685][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2416.715685][   T10]      ipv6_find_idev+0x102/0x170
[ 2416.715685][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2416.715685][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2416.715685][   T10]      netlink_rcv_skb+0x130/0x360
[ 2416.715685][   T10]      netlink_unicast+0x449/0x710
[ 2416.715685][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2416.715685][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2416.715685][   T10]      ___sys_sendmsg+0xee/0x170
[ 2416.715685][   T10]      __sys_sendmsg+0xcd/0x170
[ 2416.715685][   T10]      do_syscall_64+0xc6/0x1e0
[ 2416.715685][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2416.715685][   T10] 
[ 2416.717375][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2416.717634][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2416.717634][   T10]      dst_init+0x84/0x4a0
[ 2416.717634][   T10]      dst_alloc+0x97/0x150
[ 2416.717634][   T10]      ip6_dst_alloc+0x23/0x90
[ 2416.717634][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2416.717634][   T10]      ip6_pol_route+0x56f/0x840
[ 2416.717634][   T10]      fib6_rule_lookup+0x456/0x630
[ 2416.717634][   T10]      ip6_route_input+0x59c/0xa50
[ 2416.717634][   T10]      ipv6_rcv+0x397/0x810
[ 2416.717634][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2416.717634][   T10]      process_backlog+0x101/0x620
[ 2416.717634][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2416.717634][   T10]      net_rx_action+0x495/0xbe0
[ 2416.717634][   T10]      __do_softirq+0x1b5/0x7f6
[ 2416.717634][   T10] 
[ 2416.719264][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2416.719264][   T10]      netdev_get_by_index+0x5e/0x80
[ 2416.719264][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2416.719264][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2416.719264][   T10]      ip6_route_add+0x1c/0x140
[ 2416.719264][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2416.719264][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2416.719264][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2416.719264][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2416.719264][   T10]      netlink_rcv_skb+0x130/0x360
[ 2416.719264][   T10]      netlink_unicast+0x449/0x710
[ 2416.719264][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2416.719264][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2416.719264][   T10]      ___sys_sendmsg+0xee/0x170
[ 2416.719264][   T10]      __sys_sendmsg+0xcd/0x170
[ 2416.719264][   T10]      do_syscall_64+0xc6/0x1e0
[ 2416.719264][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2416.719264][   T10] 
[ 2416.721269][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2416.721269][   T10]      netdev_get_by_index+0x5e/0x80
[ 2416.721269][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2416.721269][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2416.721269][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2416.721269][   T10]      ipv6_add_addr+0x411/0x2000
[ 2416.721269][   T10]      inet6_addr_add+0x30e/0xa40
[ 2416.721269][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2416.721269][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2416.721269][   T10]      netlink_rcv_skb+0x130/0x360
[ 2416.721269][   T10]      netlink_unicast+0x449/0x710
[ 2416.721269][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2416.721269][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2416.721269][   T10]      ___sys_sendmsg+0xee/0x170
[ 2416.721269][   T10]      __sys_sendmsg+0xcd/0x170
[ 2416.721269][   T10]      do_syscall_64+0xc6/0x1e0
[ 2416.721269][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2416.721269][   T10] 
[ 2416.723261][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2416.723261][   T10]      netdev_get_by_index+0x5e/0x80
[ 2416.723261][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2416.723261][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2416.723261][   T10]      ip6_route_add+0x1c/0x140
[ 2416.723261][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2416.723261][   T10]      addrconf_add_dev+0xe2/0x170
[ 2416.723261][   T10]      inet6_addr_add+0x12f/0xa40
[ 2416.723261][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2416.723261][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2416.723261][   T10]      netlink_rcv_skb+0x130/0x360
[ 2416.723261][   T10]      netlink_unicast+0x449/0x710
[ 2416.723261][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2416.723261][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2416.723261][   T10]      ___sys_sendmsg+0xee/0x170
[ 2416.723261][   T10]      __sys_sendmsg+0xcd/0x170
[ 2416.723261][   T10]      do_syscall_64+0xc6/0x1e0
[ 2416.723261][   T10] 
[ 2416.725215][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2416.725215][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2416.725215][   T10]      ipv6_find_idev+0x102/0x170
[ 2416.725215][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2416.725215][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2416.725215][   T10]      netlink_rcv_skb+0x130/0x360
[ 2416.725215][   T10]      netlink_unicast+0x449/0x710
[ 2416.725215][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2416.725215][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2416.725215][   T10]      ___sys_sendmsg+0xee/0x170
[ 2416.725215][   T10]      __sys_sendmsg+0xcd/0x170
[ 2416.725215][   T10]      do_syscall_64+0xc6/0x1e0
[ 2416.725215][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2416.725215][   T10] 
[ 2416.726748][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2416.726748][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2416.726748][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2416.726748][   T10]      ipv6_find_idev+0x102/0x170
[ 2416.726748][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2416.726748][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2416.726748][   T10]      netlink_rcv_skb+0x130/0x360
[ 2416.726748][   T10]      netlink_unicast+0x449/0x710
[ 2416.726748][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2416.726748][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2416.726748][   T10]      ___sys_sendmsg+0xee/0x170
[ 2416.726748][   T10]      __sys_sendmsg+0xcd/0x170
[ 2416.726748][   T10]      do_syscall_64+0xc6/0x1e0
[ 2416.726748][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2416.726748][   T10] 
[ 2426.969808][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2426.970269][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2426.970269][   T10]      dst_init+0x84/0x4a0
[ 2426.970269][   T10]      dst_alloc+0x97/0x150
[ 2426.970269][   T10]      ip6_dst_alloc+0x23/0x90
[ 2426.970269][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2426.970269][   T10]      ip6_pol_route+0x56f/0x840
[ 2426.970269][   T10]      fib6_rule_lookup+0x456/0x630
[ 2426.970269][   T10]      ip6_route_input+0x59c/0xa50
[ 2426.970269][   T10]      ipv6_rcv+0x397/0x810
[ 2426.970269][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2426.970269][   T10]      process_backlog+0x101/0x620
[ 2426.970269][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2426.970269][   T10]      net_rx_action+0x495/0xbe0
[ 2426.970269][   T10]      __do_softirq+0x1b5/0x7f6
[ 2426.970269][   T10] 
[ 2426.971970][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2426.971970][   T10]      netdev_get_by_index+0x5e/0x80
[ 2426.971970][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2426.971970][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2426.971970][   T10]      ip6_route_add+0x1c/0x140
[ 2426.971970][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2426.971970][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2426.971970][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2426.971970][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2426.971970][   T10]      netlink_rcv_skb+0x130/0x360
[ 2426.971970][   T10]      netlink_unicast+0x449/0x710
[ 2426.971970][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2426.971970][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2426.971970][   T10]      ___sys_sendmsg+0xee/0x170
[ 2426.971970][   T10]      __sys_sendmsg+0xcd/0x170
[ 2426.971970][   T10]      do_syscall_64+0xc6/0x1e0
[ 2426.971970][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2426.971970][   T10] 
[ 2426.973978][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2426.973978][   T10]      netdev_get_by_index+0x5e/0x80
[ 2426.973978][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2426.973978][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2426.973978][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2426.973978][   T10]      ipv6_add_addr+0x411/0x2000
[ 2426.973978][   T10]      inet6_addr_add+0x30e/0xa40
[ 2426.973978][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2426.973978][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2426.973978][   T10]      netlink_rcv_skb+0x130/0x360
[ 2426.973978][   T10]      netlink_unicast+0x449/0x710
[ 2426.973978][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2426.973978][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2426.973978][   T10]      ___sys_sendmsg+0xee/0x170
[ 2426.973978][   T10]      __sys_sendmsg+0xcd/0x170
[ 2426.973978][   T10]      do_syscall_64+0xc6/0x1e0
[ 2426.973978][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2426.973978][   T10] 
[ 2426.975997][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2426.975997][   T10]      netdev_get_by_index+0x5e/0x80
[ 2426.975997][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2426.975997][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2426.975997][   T10]      ip6_route_add+0x1c/0x140
[ 2426.975997][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2426.975997][   T10]      addrconf_add_dev+0xe2/0x170
[ 2426.975997][   T10]      inet6_addr_add+0x12f/0xa40
[ 2426.975997][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2426.975997][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2426.975997][   T10]      netlink_rcv_skb+0x130/0x360
[ 2426.975997][   T10]      netlink_unicast+0x449/0x710
[ 2426.975997][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2426.975997][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2426.975997][   T10]      ___sys_sendmsg+0xee/0x170
[ 2426.975997][   T10]      __sys_sendmsg+0xcd/0x170
[ 2426.975997][   T10]      do_syscall_64+0xc6/0x1e0
[ 2426.975997][   T10] 
[ 2426.977989][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2426.977989][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2426.977989][   T10]      ipv6_find_idev+0x102/0x170
[ 2426.977989][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2426.977989][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2426.977989][   T10]      netlink_rcv_skb+0x130/0x360
[ 2426.977989][   T10]      netlink_unicast+0x449/0x710
[ 2426.977989][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2426.977989][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2426.977989][   T10]      ___sys_sendmsg+0xee/0x170
[ 2426.977989][   T10]      __sys_sendmsg+0xcd/0x170
[ 2426.977989][   T10]      do_syscall_64+0xc6/0x1e0
[ 2426.977989][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2426.977989][   T10] 
[ 2426.979535][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2426.979535][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2426.979535][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2426.979535][   T10]      ipv6_find_idev+0x102/0x170
[ 2426.979535][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2426.979535][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2426.979535][   T10]      netlink_rcv_skb+0x130/0x360
[ 2426.979535][   T10]      netlink_unicast+0x449/0x710
[ 2426.979535][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2426.979535][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2426.979535][   T10]      ___sys_sendmsg+0xee/0x170
[ 2426.979535][   T10]      __sys_sendmsg+0xcd/0x170
[ 2426.979535][   T10]      do_syscall_64+0xc6/0x1e0
[ 2426.979535][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2426.979535][   T10] 
[ 2426.981243][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2426.981491][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2426.981491][   T10]      dst_init+0x84/0x4a0
[ 2426.981491][   T10]      dst_alloc+0x97/0x150
[ 2426.981491][   T10]      ip6_dst_alloc+0x23/0x90
[ 2426.981491][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2426.981491][   T10]      ip6_pol_route+0x56f/0x840
[ 2426.981491][   T10]      fib6_rule_lookup+0x456/0x630
[ 2426.981491][   T10]      ip6_route_input+0x59c/0xa50
[ 2426.981491][   T10]      ipv6_rcv+0x397/0x810
[ 2426.981491][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2426.981491][   T10]      process_backlog+0x101/0x620
[ 2426.981491][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2426.981491][   T10]      net_rx_action+0x495/0xbe0
[ 2426.981491][   T10]      __do_softirq+0x1b5/0x7f6
[ 2426.981491][   T10] 
[ 2426.983132][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2426.983132][   T10]      netdev_get_by_index+0x5e/0x80
[ 2426.983132][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2426.983132][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2426.983132][   T10]      ip6_route_add+0x1c/0x140
[ 2426.983132][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2426.983132][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2426.983132][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2426.983132][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2426.983132][   T10]      netlink_rcv_skb+0x130/0x360
[ 2426.983132][   T10]      netlink_unicast+0x449/0x710
[ 2426.983132][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2426.983132][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2426.983132][   T10]      ___sys_sendmsg+0xee/0x170
[ 2426.983132][   T10]      __sys_sendmsg+0xcd/0x170
[ 2426.983132][   T10]      do_syscall_64+0xc6/0x1e0
[ 2426.983132][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2426.983132][   T10] 
[ 2426.985153][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2426.985153][   T10]      netdev_get_by_index+0x5e/0x80
[ 2426.985153][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2426.985153][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2426.985153][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2426.985153][   T10]      ipv6_add_addr+0x411/0x2000
[ 2426.985153][   T10]      inet6_addr_add+0x30e/0xa40
[ 2426.985153][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2426.985153][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2426.985153][   T10]      netlink_rcv_skb+0x130/0x360
[ 2426.985153][   T10]      netlink_unicast+0x449/0x710
[ 2426.985153][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2426.985153][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2426.985153][   T10]      ___sys_sendmsg+0xee/0x170
[ 2426.985153][   T10]      __sys_sendmsg+0xcd/0x170
[ 2426.985153][   T10]      do_syscall_64+0xc6/0x1e0
[ 2426.985153][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2426.985153][   T10] 
[ 2426.987152][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2426.987152][   T10]      netdev_get_by_index+0x5e/0x80
[ 2426.987152][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2426.987152][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2426.987152][   T10]      ip6_route_add+0x1c/0x140
[ 2426.987152][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2426.987152][   T10]      addrconf_add_dev+0xe2/0x170
[ 2426.987152][   T10]      inet6_addr_add+0x12f/0xa40
[ 2426.987152][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2426.987152][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2426.987152][   T10]      netlink_rcv_skb+0x130/0x360
[ 2426.987152][   T10]      netlink_unicast+0x449/0x710
[ 2426.987152][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2426.987152][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2426.987152][   T10]      ___sys_sendmsg+0xee/0x170
[ 2426.987152][   T10]      __sys_sendmsg+0xcd/0x170
[ 2426.987152][   T10]      do_syscall_64+0xc6/0x1e0
[ 2426.987152][   T10] 
[ 2426.989113][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2426.989113][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2426.989113][   T10]      ipv6_find_idev+0x102/0x170
[ 2426.989113][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2426.989113][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2426.989113][   T10]      netlink_rcv_skb+0x130/0x360
[ 2426.989113][   T10]      netlink_unicast+0x449/0x710
[ 2426.989113][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2426.989113][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2426.989113][   T10]      ___sys_sendmsg+0xee/0x170
[ 2426.989113][   T10]      __sys_sendmsg+0xcd/0x170
[ 2426.989113][   T10]      do_syscall_64+0xc6/0x1e0
[ 2426.989113][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2426.989113][   T10] 
[ 2426.990661][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2426.990661][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2426.990661][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2426.990661][   T10]      ipv6_find_idev+0x102/0x170
[ 2426.990661][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2426.990661][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2426.990661][   T10]      netlink_rcv_skb+0x130/0x360
[ 2426.990661][   T10]      netlink_unicast+0x449/0x710
[ 2426.990661][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2426.990661][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2426.990661][   T10]      ___sys_sendmsg+0xee/0x170
[ 2426.990661][   T10]      __sys_sendmsg+0xcd/0x170
[ 2426.990661][   T10]      do_syscall_64+0xc6/0x1e0
[ 2426.990661][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2426.990661][   T10] 
[ 2437.233784][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2437.234244][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2437.234244][   T10]      dst_init+0x84/0x4a0
[ 2437.234244][   T10]      dst_alloc+0x97/0x150
[ 2437.234244][   T10]      ip6_dst_alloc+0x23/0x90
[ 2437.234244][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2437.234244][   T10]      ip6_pol_route+0x56f/0x840
[ 2437.234244][   T10]      fib6_rule_lookup+0x456/0x630
[ 2437.234244][   T10]      ip6_route_input+0x59c/0xa50
[ 2437.234244][   T10]      ipv6_rcv+0x397/0x810
[ 2437.234244][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2437.234244][   T10]      process_backlog+0x101/0x620
[ 2437.234244][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2437.234244][   T10]      net_rx_action+0x495/0xbe0
[ 2437.234244][   T10]      __do_softirq+0x1b5/0x7f6
[ 2437.234244][   T10] 
[ 2437.235941][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2437.235941][   T10]      netdev_get_by_index+0x5e/0x80
[ 2437.235941][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2437.235941][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2437.235941][   T10]      ip6_route_add+0x1c/0x140
[ 2437.235941][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2437.235941][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2437.235941][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2437.235941][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2437.235941][   T10]      netlink_rcv_skb+0x130/0x360
[ 2437.235941][   T10]      netlink_unicast+0x449/0x710
[ 2437.235941][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2437.235941][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2437.235941][   T10]      ___sys_sendmsg+0xee/0x170
[ 2437.235941][   T10]      __sys_sendmsg+0xcd/0x170
[ 2437.235941][   T10]      do_syscall_64+0xc6/0x1e0
[ 2437.235941][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2437.235941][   T10] 
[ 2437.237950][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2437.237950][   T10]      netdev_get_by_index+0x5e/0x80
[ 2437.237950][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2437.237950][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2437.237950][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2437.237950][   T10]      ipv6_add_addr+0x411/0x2000
[ 2437.237950][   T10]      inet6_addr_add+0x30e/0xa40
[ 2437.237950][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2437.237950][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2437.237950][   T10]      netlink_rcv_skb+0x130/0x360
[ 2437.237950][   T10]      netlink_unicast+0x449/0x710
[ 2437.237950][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2437.237950][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2437.237950][   T10]      ___sys_sendmsg+0xee/0x170
[ 2437.237950][   T10]      __sys_sendmsg+0xcd/0x170
[ 2437.237950][   T10]      do_syscall_64+0xc6/0x1e0
[ 2437.237950][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2437.237950][   T10] 
[ 2437.239960][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2437.239960][   T10]      netdev_get_by_index+0x5e/0x80
[ 2437.239960][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2437.239960][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2437.239960][   T10]      ip6_route_add+0x1c/0x140
[ 2437.239960][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2437.239960][   T10]      addrconf_add_dev+0xe2/0x170
[ 2437.239960][   T10]      inet6_addr_add+0x12f/0xa40
[ 2437.239960][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2437.239960][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2437.239960][   T10]      netlink_rcv_skb+0x130/0x360
[ 2437.239960][   T10]      netlink_unicast+0x449/0x710
[ 2437.239960][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2437.239960][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2437.239960][   T10]      ___sys_sendmsg+0xee/0x170
[ 2437.239960][   T10]      __sys_sendmsg+0xcd/0x170
[ 2437.239960][   T10]      do_syscall_64+0xc6/0x1e0
[ 2437.239960][   T10] 
[ 2437.241960][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2437.241960][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2437.241960][   T10]      ipv6_find_idev+0x102/0x170
[ 2437.241960][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2437.241960][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2437.241960][   T10]      netlink_rcv_skb+0x130/0x360
[ 2437.241960][   T10]      netlink_unicast+0x449/0x710
[ 2437.241960][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2437.241960][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2437.241960][   T10]      ___sys_sendmsg+0xee/0x170
[ 2437.241960][   T10]      __sys_sendmsg+0xcd/0x170
[ 2437.241960][   T10]      do_syscall_64+0xc6/0x1e0
[ 2437.241960][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2437.241960][   T10] 
[ 2437.243506][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2437.243506][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2437.243506][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2437.243506][   T10]      ipv6_find_idev+0x102/0x170
[ 2437.243506][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2437.243506][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2437.243506][   T10]      netlink_rcv_skb+0x130/0x360
[ 2437.243506][   T10]      netlink_unicast+0x449/0x710
[ 2437.243506][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2437.243506][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2437.243506][   T10]      ___sys_sendmsg+0xee/0x170
[ 2437.243506][   T10]      __sys_sendmsg+0xcd/0x170
[ 2437.243506][   T10]      do_syscall_64+0xc6/0x1e0
[ 2437.243506][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2437.243506][   T10] 
[ 2437.245207][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2437.245451][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2437.245451][   T10]      dst_init+0x84/0x4a0
[ 2437.245451][   T10]      dst_alloc+0x97/0x150
[ 2437.245451][   T10]      ip6_dst_alloc+0x23/0x90
[ 2437.245451][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2437.245451][   T10]      ip6_pol_route+0x56f/0x840
[ 2437.245451][   T10]      fib6_rule_lookup+0x456/0x630
[ 2437.245451][   T10]      ip6_route_input+0x59c/0xa50
[ 2437.245451][   T10]      ipv6_rcv+0x397/0x810
[ 2437.245451][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2437.245451][   T10]      process_backlog+0x101/0x620
[ 2437.245451][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2437.245451][   T10]      net_rx_action+0x495/0xbe0
[ 2437.245451][   T10]      __do_softirq+0x1b5/0x7f6
[ 2437.245451][   T10] 
[ 2437.247092][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2437.247092][   T10]      netdev_get_by_index+0x5e/0x80
[ 2437.247092][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2437.247092][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2437.247092][   T10]      ip6_route_add+0x1c/0x140
[ 2437.247092][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2437.247092][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2437.247092][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2437.247092][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2437.247092][   T10]      netlink_rcv_skb+0x130/0x360
[ 2437.247092][   T10]      netlink_unicast+0x449/0x710
[ 2437.247092][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2437.247092][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2437.247092][   T10]      ___sys_sendmsg+0xee/0x170
[ 2437.247092][   T10]      __sys_sendmsg+0xcd/0x170
[ 2437.247092][   T10]      do_syscall_64+0xc6/0x1e0
[ 2437.247092][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2437.247092][   T10] 
[ 2437.249087][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2437.249087][   T10]      netdev_get_by_index+0x5e/0x80
[ 2437.249087][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2437.249087][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2437.249087][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2437.249087][   T10]      ipv6_add_addr+0x411/0x2000
[ 2437.249087][   T10]      inet6_addr_add+0x30e/0xa40
[ 2437.249087][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2437.249087][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2437.249087][   T10]      netlink_rcv_skb+0x130/0x360
[ 2437.249087][   T10]      netlink_unicast+0x449/0x710
[ 2437.249087][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2437.249087][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2437.249087][   T10]      ___sys_sendmsg+0xee/0x170
[ 2437.249087][   T10]      __sys_sendmsg+0xcd/0x170
[ 2437.249087][   T10]      do_syscall_64+0xc6/0x1e0
[ 2437.249087][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2437.249087][   T10] 
[ 2437.251093][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2437.251093][   T10]      netdev_get_by_index+0x5e/0x80
[ 2437.251093][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2437.251093][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2437.251093][   T10]      ip6_route_add+0x1c/0x140
[ 2437.251093][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2437.251093][   T10]      addrconf_add_dev+0xe2/0x170
[ 2437.251093][   T10]      inet6_addr_add+0x12f/0xa40
[ 2437.251093][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2437.251093][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2437.251093][   T10]      netlink_rcv_skb+0x130/0x360
[ 2437.251093][   T10]      netlink_unicast+0x449/0x710
[ 2437.251093][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2437.251093][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2437.251093][   T10]      ___sys_sendmsg+0xee/0x170
[ 2437.251093][   T10]      __sys_sendmsg+0xcd/0x170
[ 2437.251093][   T10]      do_syscall_64+0xc6/0x1e0
[ 2437.251093][   T10] 
[ 2437.253058][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2437.253058][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2437.253058][   T10]      ipv6_find_idev+0x102/0x170
[ 2437.253058][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2437.253058][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2437.253058][   T10]      netlink_rcv_skb+0x130/0x360
[ 2437.253058][   T10]      netlink_unicast+0x449/0x710
[ 2437.253058][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2437.253058][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2437.253058][   T10]      ___sys_sendmsg+0xee/0x170
[ 2437.253058][   T10]      __sys_sendmsg+0xcd/0x170
[ 2437.253058][   T10]      do_syscall_64+0xc6/0x1e0
[ 2437.253058][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2437.253058][   T10] 
[ 2437.254592][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2437.254592][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2437.254592][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2437.254592][   T10]      ipv6_find_idev+0x102/0x170
[ 2437.254592][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2437.254592][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2437.254592][   T10]      netlink_rcv_skb+0x130/0x360
[ 2437.254592][   T10]      netlink_unicast+0x449/0x710
[ 2437.254592][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2437.254592][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2437.254592][   T10]      ___sys_sendmsg+0xee/0x170
[ 2437.254592][   T10]      __sys_sendmsg+0xcd/0x170
[ 2437.254592][   T10]      do_syscall_64+0xc6/0x1e0
[ 2437.254592][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2437.254592][   T10] 
[ 2447.497776][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2447.498233][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2447.498233][   T10]      dst_init+0x84/0x4a0
[ 2447.498233][   T10]      dst_alloc+0x97/0x150
[ 2447.498233][   T10]      ip6_dst_alloc+0x23/0x90
[ 2447.498233][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2447.498233][   T10]      ip6_pol_route+0x56f/0x840
[ 2447.498233][   T10]      fib6_rule_lookup+0x456/0x630
[ 2447.498233][   T10]      ip6_route_input+0x59c/0xa50
[ 2447.498233][   T10]      ipv6_rcv+0x397/0x810
[ 2447.498233][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2447.498233][   T10]      process_backlog+0x101/0x620
[ 2447.498233][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2447.498233][   T10]      net_rx_action+0x495/0xbe0
[ 2447.498233][   T10]      __do_softirq+0x1b5/0x7f6
[ 2447.498233][   T10] 
[ 2447.499927][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2447.499927][   T10]      netdev_get_by_index+0x5e/0x80
[ 2447.499927][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2447.499927][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2447.499927][   T10]      ip6_route_add+0x1c/0x140
[ 2447.499927][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2447.499927][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2447.499927][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2447.499927][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2447.499927][   T10]      netlink_rcv_skb+0x130/0x360
[ 2447.499927][   T10]      netlink_unicast+0x449/0x710
[ 2447.499927][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2447.499927][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2447.499927][   T10]      ___sys_sendmsg+0xee/0x170
[ 2447.499927][   T10]      __sys_sendmsg+0xcd/0x170
[ 2447.499927][   T10]      do_syscall_64+0xc6/0x1e0
[ 2447.499927][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2447.499927][   T10] 
[ 2447.501948][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2447.501948][   T10]      netdev_get_by_index+0x5e/0x80
[ 2447.501948][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2447.501948][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2447.501948][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2447.501948][   T10]      ipv6_add_addr+0x411/0x2000
[ 2447.501948][   T10]      inet6_addr_add+0x30e/0xa40
[ 2447.501948][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2447.501948][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2447.501948][   T10]      netlink_rcv_skb+0x130/0x360
[ 2447.501948][   T10]      netlink_unicast+0x449/0x710
[ 2447.501948][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2447.501948][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2447.501948][   T10]      ___sys_sendmsg+0xee/0x170
[ 2447.501948][   T10]      __sys_sendmsg+0xcd/0x170
[ 2447.501948][   T10]      do_syscall_64+0xc6/0x1e0
[ 2447.501948][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2447.501948][   T10] 
[ 2447.504057][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2447.504057][   T10]      netdev_get_by_index+0x5e/0x80
[ 2447.504057][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2447.504057][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2447.504057][   T10]      ip6_route_add+0x1c/0x140
[ 2447.504057][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2447.504057][   T10]      addrconf_add_dev+0xe2/0x170
[ 2447.504057][   T10]      inet6_addr_add+0x12f/0xa40
[ 2447.504057][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2447.504057][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2447.504057][   T10]      netlink_rcv_skb+0x130/0x360
[ 2447.504057][   T10]      netlink_unicast+0x449/0x710
[ 2447.504057][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2447.504057][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2447.504057][   T10]      ___sys_sendmsg+0xee/0x170
[ 2447.504057][   T10]      __sys_sendmsg+0xcd/0x170
[ 2447.504057][   T10]      do_syscall_64+0xc6/0x1e0
[ 2447.504057][   T10] 
[ 2447.506074][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2447.506074][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2447.506074][   T10]      ipv6_find_idev+0x102/0x170
[ 2447.506074][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2447.506074][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2447.506074][   T10]      netlink_rcv_skb+0x130/0x360
[ 2447.506074][   T10]      netlink_unicast+0x449/0x710
[ 2447.506074][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2447.506074][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2447.506074][   T10]      ___sys_sendmsg+0xee/0x170
[ 2447.506074][   T10]      __sys_sendmsg+0xcd/0x170
[ 2447.506074][   T10]      do_syscall_64+0xc6/0x1e0
[ 2447.506074][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2447.506074][   T10] 
[ 2447.507658][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2447.507658][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2447.507658][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2447.507658][   T10]      ipv6_find_idev+0x102/0x170
[ 2447.507658][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2447.507658][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2447.507658][   T10]      netlink_rcv_skb+0x130/0x360
[ 2447.507658][   T10]      netlink_unicast+0x449/0x710
[ 2447.507658][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2447.507658][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2447.507658][   T10]      ___sys_sendmsg+0xee/0x170
[ 2447.507658][   T10]      __sys_sendmsg+0xcd/0x170
[ 2447.507658][   T10]      do_syscall_64+0xc6/0x1e0
[ 2447.507658][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2447.507658][   T10] 
[ 2447.509407][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2447.509660][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2447.509660][   T10]      dst_init+0x84/0x4a0
[ 2447.509660][   T10]      dst_alloc+0x97/0x150
[ 2447.509660][   T10]      ip6_dst_alloc+0x23/0x90
[ 2447.509660][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2447.509660][   T10]      ip6_pol_route+0x56f/0x840
[ 2447.509660][   T10]      fib6_rule_lookup+0x456/0x630
[ 2447.509660][   T10]      ip6_route_input+0x59c/0xa50
[ 2447.509660][   T10]      ipv6_rcv+0x397/0x810
[ 2447.509660][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2447.509660][   T10]      process_backlog+0x101/0x620
[ 2447.509660][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2447.509660][   T10]      net_rx_action+0x495/0xbe0
[ 2447.509660][   T10]      __do_softirq+0x1b5/0x7f6
[ 2447.509660][   T10] 
[ 2447.511357][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2447.511357][   T10]      netdev_get_by_index+0x5e/0x80
[ 2447.511357][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2447.511357][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2447.511357][   T10]      ip6_route_add+0x1c/0x140
[ 2447.511357][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2447.511357][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2447.511357][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2447.511357][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2447.511357][   T10]      netlink_rcv_skb+0x130/0x360
[ 2447.511357][   T10]      netlink_unicast+0x449/0x710
[ 2447.511357][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2447.511357][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2447.511357][   T10]      ___sys_sendmsg+0xee/0x170
[ 2447.511357][   T10]      __sys_sendmsg+0xcd/0x170
[ 2447.511357][   T10]      do_syscall_64+0xc6/0x1e0
[ 2447.511357][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2447.511357][   T10] 
[ 2447.513412][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2447.513412][   T10]      netdev_get_by_index+0x5e/0x80
[ 2447.513412][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2447.513412][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2447.513412][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2447.513412][   T10]      ipv6_add_addr+0x411/0x2000
[ 2447.513412][   T10]      inet6_addr_add+0x30e/0xa40
[ 2447.513412][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2447.513412][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2447.513412][   T10]      netlink_rcv_skb+0x130/0x360
[ 2447.513412][   T10]      netlink_unicast+0x449/0x710
[ 2447.513412][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2447.513412][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2447.513412][   T10]      ___sys_sendmsg+0xee/0x170
[ 2447.513412][   T10]      __sys_sendmsg+0xcd/0x170
[ 2447.513412][   T10]      do_syscall_64+0xc6/0x1e0
[ 2447.513412][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2447.513412][   T10] 
[ 2447.515455][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2447.515455][   T10]      netdev_get_by_index+0x5e/0x80
[ 2447.515455][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2447.515455][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2447.515455][   T10]      ip6_route_add+0x1c/0x140
[ 2447.515455][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2447.515455][   T10]      addrconf_add_dev+0xe2/0x170
[ 2447.515455][   T10]      inet6_addr_add+0x12f/0xa40
[ 2447.515455][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2447.515455][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2447.515455][   T10]      netlink_rcv_skb+0x130/0x360
[ 2447.515455][   T10]      netlink_unicast+0x449/0x710
[ 2447.515455][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2447.515455][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2447.515455][   T10]      ___sys_sendmsg+0xee/0x170
[ 2447.515455][   T10]      __sys_sendmsg+0xcd/0x170
[ 2447.515455][   T10]      do_syscall_64+0xc6/0x1e0
[ 2447.515455][   T10] 
[ 2447.517469][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2447.517469][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2447.517469][   T10]      ipv6_find_idev+0x102/0x170
[ 2447.517469][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2447.517469][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2447.517469][   T10]      netlink_rcv_skb+0x130/0x360
[ 2447.517469][   T10]      netlink_unicast+0x449/0x710
[ 2447.517469][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2447.517469][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2447.517469][   T10]      ___sys_sendmsg+0xee/0x170
[ 2447.517469][   T10]      __sys_sendmsg+0xcd/0x170
[ 2447.517469][   T10]      do_syscall_64+0xc6/0x1e0
[ 2447.517469][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2447.517469][   T10] 
[ 2447.519041][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2447.519041][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2447.519041][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2447.519041][   T10]      ipv6_find_idev+0x102/0x170
[ 2447.519041][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2447.519041][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2447.519041][   T10]      netlink_rcv_skb+0x130/0x360
[ 2447.519041][   T10]      netlink_unicast+0x449/0x710
[ 2447.519041][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2447.519041][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2447.519041][   T10]      ___sys_sendmsg+0xee/0x170
[ 2447.519041][   T10]      __sys_sendmsg+0xcd/0x170
[ 2447.519041][   T10]      do_syscall_64+0xc6/0x1e0
[ 2447.519041][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2447.519041][   T10] 
[ 2457.761780][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2457.762258][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2457.762258][   T10]      dst_init+0x84/0x4a0
[ 2457.762258][   T10]      dst_alloc+0x97/0x150
[ 2457.762258][   T10]      ip6_dst_alloc+0x23/0x90
[ 2457.762258][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2457.762258][   T10]      ip6_pol_route+0x56f/0x840
[ 2457.762258][   T10]      fib6_rule_lookup+0x456/0x630
[ 2457.762258][   T10]      ip6_route_input+0x59c/0xa50
[ 2457.762258][   T10]      ipv6_rcv+0x397/0x810
[ 2457.762258][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2457.762258][   T10]      process_backlog+0x101/0x620
[ 2457.762258][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2457.762258][   T10]      net_rx_action+0x495/0xbe0
[ 2457.762258][   T10]      __do_softirq+0x1b5/0x7f6
[ 2457.762258][   T10] 
[ 2457.763982][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2457.763982][   T10]      netdev_get_by_index+0x5e/0x80
[ 2457.763982][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2457.763982][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2457.763982][   T10]      ip6_route_add+0x1c/0x140
[ 2457.763982][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2457.763982][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2457.763982][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2457.763982][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2457.763982][   T10]      netlink_rcv_skb+0x130/0x360
[ 2457.763982][   T10]      netlink_unicast+0x449/0x710
[ 2457.763982][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2457.763982][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2457.763982][   T10]      ___sys_sendmsg+0xee/0x170
[ 2457.763982][   T10]      __sys_sendmsg+0xcd/0x170
[ 2457.763982][   T10]      do_syscall_64+0xc6/0x1e0
[ 2457.763982][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2457.763982][   T10] 
[ 2457.766047][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2457.766047][   T10]      netdev_get_by_index+0x5e/0x80
[ 2457.766047][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2457.766047][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2457.766047][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2457.766047][   T10]      ipv6_add_addr+0x411/0x2000
[ 2457.766047][   T10]      inet6_addr_add+0x30e/0xa40
[ 2457.766047][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2457.766047][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2457.766047][   T10]      netlink_rcv_skb+0x130/0x360
[ 2457.766047][   T10]      netlink_unicast+0x449/0x710
[ 2457.766047][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2457.766047][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2457.766047][   T10]      ___sys_sendmsg+0xee/0x170
[ 2457.766047][   T10]      __sys_sendmsg+0xcd/0x170
[ 2457.766047][   T10]      do_syscall_64+0xc6/0x1e0
[ 2457.766047][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2457.766047][   T10] 
[ 2457.768105][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2457.768105][   T10]      netdev_get_by_index+0x5e/0x80
[ 2457.768105][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2457.768105][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2457.768105][   T10]      ip6_route_add+0x1c/0x140
[ 2457.768105][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2457.768105][   T10]      addrconf_add_dev+0xe2/0x170
[ 2457.768105][   T10]      inet6_addr_add+0x12f/0xa40
[ 2457.768105][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2457.768105][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2457.768105][   T10]      netlink_rcv_skb+0x130/0x360
[ 2457.768105][   T10]      netlink_unicast+0x449/0x710
[ 2457.768105][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2457.768105][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2457.768105][   T10]      ___sys_sendmsg+0xee/0x170
[ 2457.768105][   T10]      __sys_sendmsg+0xcd/0x170
[ 2457.768105][   T10]      do_syscall_64+0xc6/0x1e0
[ 2457.768105][   T10] 
[ 2457.770125][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2457.770125][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2457.770125][   T10]      ipv6_find_idev+0x102/0x170
[ 2457.770125][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2457.770125][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2457.770125][   T10]      netlink_rcv_skb+0x130/0x360
[ 2457.770125][   T10]      netlink_unicast+0x449/0x710
[ 2457.770125][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2457.770125][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2457.770125][   T10]      ___sys_sendmsg+0xee/0x170
[ 2457.770125][   T10]      __sys_sendmsg+0xcd/0x170
[ 2457.770125][   T10]      do_syscall_64+0xc6/0x1e0
[ 2457.770125][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2457.770125][   T10] 
[ 2457.771722][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2457.771722][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2457.771722][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2457.771722][   T10]      ipv6_find_idev+0x102/0x170
[ 2457.771722][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2457.771722][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2457.771722][   T10]      netlink_rcv_skb+0x130/0x360
[ 2457.771722][   T10]      netlink_unicast+0x449/0x710
[ 2457.771722][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2457.771722][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2457.771722][   T10]      ___sys_sendmsg+0xee/0x170
[ 2457.771722][   T10]      __sys_sendmsg+0xcd/0x170
[ 2457.771722][   T10]      do_syscall_64+0xc6/0x1e0
[ 2457.771722][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2457.771722][   T10] 
[ 2457.773465][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2457.773737][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2457.773737][   T10]      dst_init+0x84/0x4a0
[ 2457.773737][   T10]      dst_alloc+0x97/0x150
[ 2457.773737][   T10]      ip6_dst_alloc+0x23/0x90
[ 2457.773737][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2457.773737][   T10]      ip6_pol_route+0x56f/0x840
[ 2457.773737][   T10]      fib6_rule_lookup+0x456/0x630
[ 2457.773737][   T10]      ip6_route_input+0x59c/0xa50
[ 2457.773737][   T10]      ipv6_rcv+0x397/0x810
[ 2457.773737][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2457.773737][   T10]      process_backlog+0x101/0x620
[ 2457.773737][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2457.773737][   T10]      net_rx_action+0x495/0xbe0
[ 2457.773737][   T10]      __do_softirq+0x1b5/0x7f6
[ 2457.773737][   T10] 
[ 2457.775416][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2457.775416][   T10]      netdev_get_by_index+0x5e/0x80
[ 2457.775416][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2457.775416][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2457.775416][   T10]      ip6_route_add+0x1c/0x140
[ 2457.775416][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2457.775416][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2457.775416][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2457.775416][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2457.775416][   T10]      netlink_rcv_skb+0x130/0x360
[ 2457.775416][   T10]      netlink_unicast+0x449/0x710
[ 2457.775416][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2457.775416][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2457.775416][   T10]      ___sys_sendmsg+0xee/0x170
[ 2457.775416][   T10]      __sys_sendmsg+0xcd/0x170
[ 2457.775416][   T10]      do_syscall_64+0xc6/0x1e0
[ 2457.775416][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2457.775416][   T10] 
[ 2457.777459][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2457.777459][   T10]      netdev_get_by_index+0x5e/0x80
[ 2457.777459][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2457.777459][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2457.777459][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2457.777459][   T10]      ipv6_add_addr+0x411/0x2000
[ 2457.777459][   T10]      inet6_addr_add+0x30e/0xa40
[ 2457.777459][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2457.777459][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2457.777459][   T10]      netlink_rcv_skb+0x130/0x360
[ 2457.777459][   T10]      netlink_unicast+0x449/0x710
[ 2457.777459][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2457.777459][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2457.777459][   T10]      ___sys_sendmsg+0xee/0x170
[ 2457.777459][   T10]      __sys_sendmsg+0xcd/0x170
[ 2457.777459][   T10]      do_syscall_64+0xc6/0x1e0
[ 2457.777459][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2457.777459][   T10] 
[ 2457.779502][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2457.779502][   T10]      netdev_get_by_index+0x5e/0x80
[ 2457.779502][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2457.779502][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2457.779502][   T10]      ip6_route_add+0x1c/0x140
[ 2457.779502][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2457.779502][   T10]      addrconf_add_dev+0xe2/0x170
[ 2457.779502][   T10]      inet6_addr_add+0x12f/0xa40
[ 2457.779502][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2457.779502][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2457.779502][   T10]      netlink_rcv_skb+0x130/0x360
[ 2457.779502][   T10]      netlink_unicast+0x449/0x710
[ 2457.779502][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2457.779502][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2457.779502][   T10]      ___sys_sendmsg+0xee/0x170
[ 2457.779502][   T10]      __sys_sendmsg+0xcd/0x170
[ 2457.779502][   T10]      do_syscall_64+0xc6/0x1e0
[ 2457.779502][   T10] 
[ 2457.781521][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2457.781521][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2457.781521][   T10]      ipv6_find_idev+0x102/0x170
[ 2457.781521][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2457.781521][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2457.781521][   T10]      netlink_rcv_skb+0x130/0x360
[ 2457.781521][   T10]      netlink_unicast+0x449/0x710
[ 2457.781521][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2457.781521][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2457.781521][   T10]      ___sys_sendmsg+0xee/0x170
[ 2457.781521][   T10]      __sys_sendmsg+0xcd/0x170
[ 2457.781521][   T10]      do_syscall_64+0xc6/0x1e0
[ 2457.781521][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2457.781521][   T10] 
[ 2457.783094][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2457.783094][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2457.783094][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2457.783094][   T10]      ipv6_find_idev+0x102/0x170
[ 2457.783094][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2457.783094][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2457.783094][   T10]      netlink_rcv_skb+0x130/0x360
[ 2457.783094][   T10]      netlink_unicast+0x449/0x710
[ 2457.783094][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2457.783094][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2457.783094][   T10]      ___sys_sendmsg+0xee/0x170
[ 2457.783094][   T10]      __sys_sendmsg+0xcd/0x170
[ 2457.783094][   T10]      do_syscall_64+0xc6/0x1e0
[ 2457.783094][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2457.783094][   T10] 
[ 2468.025786][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2468.026261][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2468.026261][   T10]      dst_init+0x84/0x4a0
[ 2468.026261][   T10]      dst_alloc+0x97/0x150
[ 2468.026261][   T10]      ip6_dst_alloc+0x23/0x90
[ 2468.026261][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2468.026261][   T10]      ip6_pol_route+0x56f/0x840
[ 2468.026261][   T10]      fib6_rule_lookup+0x456/0x630
[ 2468.026261][   T10]      ip6_route_input+0x59c/0xa50
[ 2468.026261][   T10]      ipv6_rcv+0x397/0x810
[ 2468.026261][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2468.026261][   T10]      process_backlog+0x101/0x620
[ 2468.026261][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2468.026261][   T10]      net_rx_action+0x495/0xbe0
[ 2468.026261][   T10]      __do_softirq+0x1b5/0x7f6
[ 2468.026261][   T10] 
[ 2468.027998][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2468.027998][   T10]      netdev_get_by_index+0x5e/0x80
[ 2468.027998][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2468.027998][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2468.027998][   T10]      ip6_route_add+0x1c/0x140
[ 2468.027998][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2468.027998][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2468.027998][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2468.027998][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2468.027998][   T10]      netlink_rcv_skb+0x130/0x360
[ 2468.027998][   T10]      netlink_unicast+0x449/0x710
[ 2468.027998][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2468.027998][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2468.027998][   T10]      ___sys_sendmsg+0xee/0x170
[ 2468.027998][   T10]      __sys_sendmsg+0xcd/0x170
[ 2468.027998][   T10]      do_syscall_64+0xc6/0x1e0
[ 2468.027998][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2468.027998][   T10] 
[ 2468.030062][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2468.030062][   T10]      netdev_get_by_index+0x5e/0x80
[ 2468.030062][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2468.030062][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2468.030062][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2468.030062][   T10]      ipv6_add_addr+0x411/0x2000
[ 2468.030062][   T10]      inet6_addr_add+0x30e/0xa40
[ 2468.030062][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2468.030062][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2468.030062][   T10]      netlink_rcv_skb+0x130/0x360
[ 2468.030062][   T10]      netlink_unicast+0x449/0x710
[ 2468.030062][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2468.030062][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2468.030062][   T10]      ___sys_sendmsg+0xee/0x170
[ 2468.030062][   T10]      __sys_sendmsg+0xcd/0x170
[ 2468.030062][   T10]      do_syscall_64+0xc6/0x1e0
[ 2468.030062][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2468.030062][   T10] 
[ 2468.032138][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2468.032138][   T10]      netdev_get_by_index+0x5e/0x80
[ 2468.032138][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2468.032138][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2468.032138][   T10]      ip6_route_add+0x1c/0x140
[ 2468.032138][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2468.032138][   T10]      addrconf_add_dev+0xe2/0x170
[ 2468.032138][   T10]      inet6_addr_add+0x12f/0xa40
[ 2468.032138][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2468.032138][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2468.032138][   T10]      netlink_rcv_skb+0x130/0x360
[ 2468.032138][   T10]      netlink_unicast+0x449/0x710
[ 2468.032138][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2468.032138][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2468.032138][   T10]      ___sys_sendmsg+0xee/0x170
[ 2468.032138][   T10]      __sys_sendmsg+0xcd/0x170
[ 2468.032138][   T10]      do_syscall_64+0xc6/0x1e0
[ 2468.032138][   T10] 
[ 2468.034163][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2468.034163][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2468.034163][   T10]      ipv6_find_idev+0x102/0x170
[ 2468.034163][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2468.034163][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2468.034163][   T10]      netlink_rcv_skb+0x130/0x360
[ 2468.034163][   T10]      netlink_unicast+0x449/0x710
[ 2468.034163][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2468.034163][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2468.034163][   T10]      ___sys_sendmsg+0xee/0x170
[ 2468.034163][   T10]      __sys_sendmsg+0xcd/0x170
[ 2468.034163][   T10]      do_syscall_64+0xc6/0x1e0
[ 2468.034163][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2468.034163][   T10] 
[ 2468.035751][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2468.035751][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2468.035751][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2468.035751][   T10]      ipv6_find_idev+0x102/0x170
[ 2468.035751][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2468.035751][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2468.035751][   T10]      netlink_rcv_skb+0x130/0x360
[ 2468.035751][   T10]      netlink_unicast+0x449/0x710
[ 2468.035751][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2468.035751][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2468.035751][   T10]      ___sys_sendmsg+0xee/0x170
[ 2468.035751][   T10]      __sys_sendmsg+0xcd/0x170
[ 2468.035751][   T10]      do_syscall_64+0xc6/0x1e0
[ 2468.035751][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2468.035751][   T10] 
[ 2468.037489][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2468.037765][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2468.037765][   T10]      dst_init+0x84/0x4a0
[ 2468.037765][   T10]      dst_alloc+0x97/0x150
[ 2468.037765][   T10]      ip6_dst_alloc+0x23/0x90
[ 2468.037765][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2468.037765][   T10]      ip6_pol_route+0x56f/0x840
[ 2468.037765][   T10]      fib6_rule_lookup+0x456/0x630
[ 2468.037765][   T10]      ip6_route_input+0x59c/0xa50
[ 2468.037765][   T10]      ipv6_rcv+0x397/0x810
[ 2468.037765][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2468.037765][   T10]      process_backlog+0x101/0x620
[ 2468.037765][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2468.037765][   T10]      net_rx_action+0x495/0xbe0
[ 2468.037765][   T10]      __do_softirq+0x1b5/0x7f6
[ 2468.037765][   T10] 
[ 2468.039452][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2468.039452][   T10]      netdev_get_by_index+0x5e/0x80
[ 2468.039452][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2468.039452][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2468.039452][   T10]      ip6_route_add+0x1c/0x140
[ 2468.039452][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2468.039452][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2468.039452][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2468.039452][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2468.039452][   T10]      netlink_rcv_skb+0x130/0x360
[ 2468.039452][   T10]      netlink_unicast+0x449/0x710
[ 2468.039452][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2468.039452][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2468.039452][   T10]      ___sys_sendmsg+0xee/0x170
[ 2468.039452][   T10]      __sys_sendmsg+0xcd/0x170
[ 2468.039452][   T10]      do_syscall_64+0xc6/0x1e0
[ 2468.039452][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2468.039452][   T10] 
[ 2468.041525][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2468.041525][   T10]      netdev_get_by_index+0x5e/0x80
[ 2468.041525][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2468.041525][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2468.041525][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2468.041525][   T10]      ipv6_add_addr+0x411/0x2000
[ 2468.041525][   T10]      inet6_addr_add+0x30e/0xa40
[ 2468.041525][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2468.041525][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2468.041525][   T10]      netlink_rcv_skb+0x130/0x360
[ 2468.041525][   T10]      netlink_unicast+0x449/0x710
[ 2468.041525][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2468.041525][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2468.041525][   T10]      ___sys_sendmsg+0xee/0x170
[ 2468.041525][   T10]      __sys_sendmsg+0xcd/0x170
[ 2468.041525][   T10]      do_syscall_64+0xc6/0x1e0
[ 2468.041525][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2468.041525][   T10] 
[ 2468.043583][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2468.043583][   T10]      netdev_get_by_index+0x5e/0x80
[ 2468.043583][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2468.043583][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2468.043583][   T10]      ip6_route_add+0x1c/0x140
[ 2468.043583][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2468.043583][   T10]      addrconf_add_dev+0xe2/0x170
[ 2468.043583][   T10]      inet6_addr_add+0x12f/0xa40
[ 2468.043583][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2468.043583][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2468.043583][   T10]      netlink_rcv_skb+0x130/0x360
[ 2468.043583][   T10]      netlink_unicast+0x449/0x710
[ 2468.043583][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2468.043583][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2468.043583][   T10]      ___sys_sendmsg+0xee/0x170
[ 2468.043583][   T10]      __sys_sendmsg+0xcd/0x170
[ 2468.043583][   T10]      do_syscall_64+0xc6/0x1e0
[ 2468.043583][   T10] 
[ 2468.045597][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2468.045597][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2468.045597][   T10]      ipv6_find_idev+0x102/0x170
[ 2468.045597][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2468.045597][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2468.045597][   T10]      netlink_rcv_skb+0x130/0x360
[ 2468.045597][   T10]      netlink_unicast+0x449/0x710
[ 2468.045597][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2468.045597][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2468.045597][   T10]      ___sys_sendmsg+0xee/0x170
[ 2468.045597][   T10]      __sys_sendmsg+0xcd/0x170
[ 2468.045597][   T10]      do_syscall_64+0xc6/0x1e0
[ 2468.045597][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2468.045597][   T10] 
[ 2468.047181][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2468.047181][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2468.047181][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2468.047181][   T10]      ipv6_find_idev+0x102/0x170
[ 2468.047181][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2468.047181][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2468.047181][   T10]      netlink_rcv_skb+0x130/0x360
[ 2468.047181][   T10]      netlink_unicast+0x449/0x710
[ 2468.047181][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2468.047181][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2468.047181][   T10]      ___sys_sendmsg+0xee/0x170
[ 2468.047181][   T10]      __sys_sendmsg+0xcd/0x170
[ 2468.047181][   T10]      do_syscall_64+0xc6/0x1e0
[ 2468.047181][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2468.047181][   T10] 
[ 2478.289778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2478.290264][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2478.290264][   T10]      dst_init+0x84/0x4a0
[ 2478.290264][   T10]      dst_alloc+0x97/0x150
[ 2478.290264][   T10]      ip6_dst_alloc+0x23/0x90
[ 2478.290264][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2478.290264][   T10]      ip6_pol_route+0x56f/0x840
[ 2478.290264][   T10]      fib6_rule_lookup+0x456/0x630
[ 2478.290264][   T10]      ip6_route_input+0x59c/0xa50
[ 2478.290264][   T10]      ipv6_rcv+0x397/0x810
[ 2478.290264][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2478.290264][   T10]      process_backlog+0x101/0x620
[ 2478.290264][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2478.290264][   T10]      net_rx_action+0x495/0xbe0
[ 2478.290264][   T10]      __do_softirq+0x1b5/0x7f6
[ 2478.290264][   T10] 
[ 2478.291995][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2478.291995][   T10]      netdev_get_by_index+0x5e/0x80
[ 2478.291995][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2478.291995][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2478.291995][   T10]      ip6_route_add+0x1c/0x140
[ 2478.291995][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2478.291995][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2478.291995][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2478.291995][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2478.291995][   T10]      netlink_rcv_skb+0x130/0x360
[ 2478.291995][   T10]      netlink_unicast+0x449/0x710
[ 2478.291995][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2478.291995][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2478.291995][   T10]      ___sys_sendmsg+0xee/0x170
[ 2478.291995][   T10]      __sys_sendmsg+0xcd/0x170
[ 2478.291995][   T10]      do_syscall_64+0xc6/0x1e0
[ 2478.291995][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2478.291995][   T10] 
[ 2478.294050][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2478.294050][   T10]      netdev_get_by_index+0x5e/0x80
[ 2478.294050][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2478.294050][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2478.294050][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2478.294050][   T10]      ipv6_add_addr+0x411/0x2000
[ 2478.294050][   T10]      inet6_addr_add+0x30e/0xa40
[ 2478.294050][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2478.294050][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2478.294050][   T10]      netlink_rcv_skb+0x130/0x360
[ 2478.294050][   T10]      netlink_unicast+0x449/0x710
[ 2478.294050][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2478.294050][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2478.294050][   T10]      ___sys_sendmsg+0xee/0x170
[ 2478.294050][   T10]      __sys_sendmsg+0xcd/0x170
[ 2478.294050][   T10]      do_syscall_64+0xc6/0x1e0
[ 2478.294050][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2478.294050][   T10] 
[ 2478.296106][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2478.296106][   T10]      netdev_get_by_index+0x5e/0x80
[ 2478.296106][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2478.296106][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2478.296106][   T10]      ip6_route_add+0x1c/0x140
[ 2478.296106][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2478.296106][   T10]      addrconf_add_dev+0xe2/0x170
[ 2478.296106][   T10]      inet6_addr_add+0x12f/0xa40
[ 2478.296106][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2478.296106][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2478.296106][   T10]      netlink_rcv_skb+0x130/0x360
[ 2478.296106][   T10]      netlink_unicast+0x449/0x710
[ 2478.296106][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2478.296106][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2478.296106][   T10]      ___sys_sendmsg+0xee/0x170
[ 2478.296106][   T10]      __sys_sendmsg+0xcd/0x170
[ 2478.296106][   T10]      do_syscall_64+0xc6/0x1e0
[ 2478.296106][   T10] 
[ 2478.298123][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2478.298123][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2478.298123][   T10]      ipv6_find_idev+0x102/0x170
[ 2478.298123][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2478.298123][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2478.298123][   T10]      netlink_rcv_skb+0x130/0x360
[ 2478.298123][   T10]      netlink_unicast+0x449/0x710
[ 2478.298123][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2478.298123][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2478.298123][   T10]      ___sys_sendmsg+0xee/0x170
[ 2478.298123][   T10]      __sys_sendmsg+0xcd/0x170
[ 2478.298123][   T10]      do_syscall_64+0xc6/0x1e0
[ 2478.298123][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2478.298123][   T10] 
[ 2478.299702][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2478.299702][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2478.299702][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2478.299702][   T10]      ipv6_find_idev+0x102/0x170
[ 2478.299702][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2478.299702][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2478.299702][   T10]      netlink_rcv_skb+0x130/0x360
[ 2478.299702][   T10]      netlink_unicast+0x449/0x710
[ 2478.299702][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2478.299702][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2478.299702][   T10]      ___sys_sendmsg+0xee/0x170
[ 2478.299702][   T10]      __sys_sendmsg+0xcd/0x170
[ 2478.299702][   T10]      do_syscall_64+0xc6/0x1e0
[ 2478.299702][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2478.299702][   T10] 
[ 2478.301462][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2478.301718][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2478.301718][   T10]      dst_init+0x84/0x4a0
[ 2478.301718][   T10]      dst_alloc+0x97/0x150
[ 2478.301718][   T10]      ip6_dst_alloc+0x23/0x90
[ 2478.301718][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2478.301718][   T10]      ip6_pol_route+0x56f/0x840
[ 2478.301718][   T10]      fib6_rule_lookup+0x456/0x630
[ 2478.301718][   T10]      ip6_route_input+0x59c/0xa50
[ 2478.301718][   T10]      ipv6_rcv+0x397/0x810
[ 2478.301718][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2478.301718][   T10]      process_backlog+0x101/0x620
[ 2478.301718][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2478.301718][   T10]      net_rx_action+0x495/0xbe0
[ 2478.301718][   T10]      __do_softirq+0x1b5/0x7f6
[ 2478.301718][   T10] 
[ 2478.303397][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2478.303397][   T10]      netdev_get_by_index+0x5e/0x80
[ 2478.303397][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2478.303397][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2478.303397][   T10]      ip6_route_add+0x1c/0x140
[ 2478.303397][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2478.303397][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2478.303397][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2478.303397][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2478.303397][   T10]      netlink_rcv_skb+0x130/0x360
[ 2478.303397][   T10]      netlink_unicast+0x449/0x710
[ 2478.303397][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2478.303397][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2478.303397][   T10]      ___sys_sendmsg+0xee/0x170
[ 2478.303397][   T10]      __sys_sendmsg+0xcd/0x170
[ 2478.303397][   T10]      do_syscall_64+0xc6/0x1e0
[ 2478.303397][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2478.303397][   T10] 
[ 2478.305459][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2478.305459][   T10]      netdev_get_by_index+0x5e/0x80
[ 2478.305459][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2478.305459][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2478.305459][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2478.305459][   T10]      ipv6_add_addr+0x411/0x2000
[ 2478.305459][   T10]      inet6_addr_add+0x30e/0xa40
[ 2478.305459][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2478.305459][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2478.305459][   T10]      netlink_rcv_skb+0x130/0x360
[ 2478.305459][   T10]      netlink_unicast+0x449/0x710
[ 2478.305459][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2478.305459][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2478.305459][   T10]      ___sys_sendmsg+0xee/0x170
[ 2478.305459][   T10]      __sys_sendmsg+0xcd/0x170
[ 2478.305459][   T10]      do_syscall_64+0xc6/0x1e0
[ 2478.305459][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2478.305459][   T10] 
[ 2478.307509][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2478.307509][   T10]      netdev_get_by_index+0x5e/0x80
[ 2478.307509][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2478.307509][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2478.307509][   T10]      ip6_route_add+0x1c/0x140
[ 2478.307509][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2478.307509][   T10]      addrconf_add_dev+0xe2/0x170
[ 2478.307509][   T10]      inet6_addr_add+0x12f/0xa40
[ 2478.307509][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2478.307509][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2478.307509][   T10]      netlink_rcv_skb+0x130/0x360
[ 2478.307509][   T10]      netlink_unicast+0x449/0x710
[ 2478.307509][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2478.307509][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2478.307509][   T10]      ___sys_sendmsg+0xee/0x170
[ 2478.307509][   T10]      __sys_sendmsg+0xcd/0x170
[ 2478.307509][   T10]      do_syscall_64+0xc6/0x1e0
[ 2478.307509][   T10] 
[ 2478.309524][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2478.309524][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2478.309524][   T10]      ipv6_find_idev+0x102/0x170
[ 2478.309524][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2478.309524][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2478.309524][   T10]      netlink_rcv_skb+0x130/0x360
[ 2478.309524][   T10]      netlink_unicast+0x449/0x710
[ 2478.309524][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2478.309524][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2478.309524][   T10]      ___sys_sendmsg+0xee/0x170
[ 2478.309524][   T10]      __sys_sendmsg+0xcd/0x170
[ 2478.309524][   T10]      do_syscall_64+0xc6/0x1e0
[ 2478.309524][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2478.309524][   T10] 
[ 2478.311109][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2478.311109][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2478.311109][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2478.311109][   T10]      ipv6_find_idev+0x102/0x170
[ 2478.311109][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2478.311109][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2478.311109][   T10]      netlink_rcv_skb+0x130/0x360
[ 2478.311109][   T10]      netlink_unicast+0x449/0x710
[ 2478.311109][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2478.311109][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2478.311109][   T10]      ___sys_sendmsg+0xee/0x170
[ 2478.311109][   T10]      __sys_sendmsg+0xcd/0x170
[ 2478.311109][   T10]      do_syscall_64+0xc6/0x1e0
[ 2478.311109][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2478.311109][   T10] 
[ 2488.553776][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2488.554232][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2488.554232][   T10]      dst_init+0x84/0x4a0
[ 2488.554232][   T10]      dst_alloc+0x97/0x150
[ 2488.554232][   T10]      ip6_dst_alloc+0x23/0x90
[ 2488.554232][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2488.554232][   T10]      ip6_pol_route+0x56f/0x840
[ 2488.554232][   T10]      fib6_rule_lookup+0x456/0x630
[ 2488.554232][   T10]      ip6_route_input+0x59c/0xa50
[ 2488.554232][   T10]      ipv6_rcv+0x397/0x810
[ 2488.554232][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2488.554232][   T10]      process_backlog+0x101/0x620
[ 2488.554232][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2488.554232][   T10]      net_rx_action+0x495/0xbe0
[ 2488.554232][   T10]      __do_softirq+0x1b5/0x7f6
[ 2488.554232][   T10] 
[ 2488.555963][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2488.555963][   T10]      netdev_get_by_index+0x5e/0x80
[ 2488.555963][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2488.555963][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2488.555963][   T10]      ip6_route_add+0x1c/0x140
[ 2488.555963][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2488.555963][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2488.555963][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2488.555963][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2488.555963][   T10]      netlink_rcv_skb+0x130/0x360
[ 2488.555963][   T10]      netlink_unicast+0x449/0x710
[ 2488.555963][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2488.555963][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2488.555963][   T10]      ___sys_sendmsg+0xee/0x170
[ 2488.555963][   T10]      __sys_sendmsg+0xcd/0x170
[ 2488.555963][   T10]      do_syscall_64+0xc6/0x1e0
[ 2488.555963][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2488.555963][   T10] 
[ 2488.558031][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2488.558031][   T10]      netdev_get_by_index+0x5e/0x80
[ 2488.558031][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2488.558031][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2488.558031][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2488.558031][   T10]      ipv6_add_addr+0x411/0x2000
[ 2488.558031][   T10]      inet6_addr_add+0x30e/0xa40
[ 2488.558031][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2488.558031][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2488.558031][   T10]      netlink_rcv_skb+0x130/0x360
[ 2488.558031][   T10]      netlink_unicast+0x449/0x710
[ 2488.558031][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2488.558031][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2488.558031][   T10]      ___sys_sendmsg+0xee/0x170
[ 2488.558031][   T10]      __sys_sendmsg+0xcd/0x170
[ 2488.558031][   T10]      do_syscall_64+0xc6/0x1e0
[ 2488.558031][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2488.558031][   T10] 
[ 2488.560092][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2488.560092][   T10]      netdev_get_by_index+0x5e/0x80
[ 2488.560092][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2488.560092][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2488.560092][   T10]      ip6_route_add+0x1c/0x140
[ 2488.560092][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2488.560092][   T10]      addrconf_add_dev+0xe2/0x170
[ 2488.560092][   T10]      inet6_addr_add+0x12f/0xa40
[ 2488.560092][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2488.560092][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2488.560092][   T10]      netlink_rcv_skb+0x130/0x360
[ 2488.560092][   T10]      netlink_unicast+0x449/0x710
[ 2488.560092][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2488.560092][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2488.560092][   T10]      ___sys_sendmsg+0xee/0x170
[ 2488.560092][   T10]      __sys_sendmsg+0xcd/0x170
[ 2488.560092][   T10]      do_syscall_64+0xc6/0x1e0
[ 2488.560092][   T10] 
[ 2488.562170][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2488.562170][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2488.562170][   T10]      ipv6_find_idev+0x102/0x170
[ 2488.562170][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2488.562170][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2488.562170][   T10]      netlink_rcv_skb+0x130/0x360
[ 2488.562170][   T10]      netlink_unicast+0x449/0x710
[ 2488.562170][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2488.562170][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2488.562170][   T10]      ___sys_sendmsg+0xee/0x170
[ 2488.562170][   T10]      __sys_sendmsg+0xcd/0x170
[ 2488.562170][   T10]      do_syscall_64+0xc6/0x1e0
[ 2488.562170][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2488.562170][   T10] 
[ 2488.563756][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2488.563756][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2488.563756][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2488.563756][   T10]      ipv6_find_idev+0x102/0x170
[ 2488.563756][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2488.563756][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2488.563756][   T10]      netlink_rcv_skb+0x130/0x360
[ 2488.563756][   T10]      netlink_unicast+0x449/0x710
[ 2488.563756][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2488.563756][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2488.563756][   T10]      ___sys_sendmsg+0xee/0x170
[ 2488.563756][   T10]      __sys_sendmsg+0xcd/0x170
[ 2488.563756][   T10]      do_syscall_64+0xc6/0x1e0
[ 2488.563756][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2488.563756][   T10] 
[ 2488.565491][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2488.565763][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2488.565763][   T10]      dst_init+0x84/0x4a0
[ 2488.565763][   T10]      dst_alloc+0x97/0x150
[ 2488.565763][   T10]      ip6_dst_alloc+0x23/0x90
[ 2488.565763][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2488.565763][   T10]      ip6_pol_route+0x56f/0x840
[ 2488.565763][   T10]      fib6_rule_lookup+0x456/0x630
[ 2488.565763][   T10]      ip6_route_input+0x59c/0xa50
[ 2488.565763][   T10]      ipv6_rcv+0x397/0x810
[ 2488.565763][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2488.565763][   T10]      process_backlog+0x101/0x620
[ 2488.565763][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2488.565763][   T10]      net_rx_action+0x495/0xbe0
[ 2488.565763][   T10]      __do_softirq+0x1b5/0x7f6
[ 2488.565763][   T10] 
[ 2488.567466][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2488.567466][   T10]      netdev_get_by_index+0x5e/0x80
[ 2488.567466][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2488.567466][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2488.567466][   T10]      ip6_route_add+0x1c/0x140
[ 2488.567466][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2488.567466][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2488.567466][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2488.567466][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2488.567466][   T10]      netlink_rcv_skb+0x130/0x360
[ 2488.567466][   T10]      netlink_unicast+0x449/0x710
[ 2488.567466][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2488.567466][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2488.567466][   T10]      ___sys_sendmsg+0xee/0x170
[ 2488.567466][   T10]      __sys_sendmsg+0xcd/0x170
[ 2488.567466][   T10]      do_syscall_64+0xc6/0x1e0
[ 2488.567466][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2488.567466][   T10] 
[ 2488.569520][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2488.569520][   T10]      netdev_get_by_index+0x5e/0x80
[ 2488.569520][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2488.569520][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2488.569520][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2488.569520][   T10]      ipv6_add_addr+0x411/0x2000
[ 2488.569520][   T10]      inet6_addr_add+0x30e/0xa40
[ 2488.569520][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2488.569520][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2488.569520][   T10]      netlink_rcv_skb+0x130/0x360
[ 2488.569520][   T10]      netlink_unicast+0x449/0x710
[ 2488.569520][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2488.569520][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2488.569520][   T10]      ___sys_sendmsg+0xee/0x170
[ 2488.569520][   T10]      __sys_sendmsg+0xcd/0x170
[ 2488.569520][   T10]      do_syscall_64+0xc6/0x1e0
[ 2488.569520][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2488.569520][   T10] 
[ 2488.571576][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2488.571576][   T10]      netdev_get_by_index+0x5e/0x80
[ 2488.571576][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2488.571576][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2488.571576][   T10]      ip6_route_add+0x1c/0x140
[ 2488.571576][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2488.571576][   T10]      addrconf_add_dev+0xe2/0x170
[ 2488.571576][   T10]      inet6_addr_add+0x12f/0xa40
[ 2488.571576][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2488.571576][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2488.571576][   T10]      netlink_rcv_skb+0x130/0x360
[ 2488.571576][   T10]      netlink_unicast+0x449/0x710
[ 2488.571576][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2488.571576][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2488.571576][   T10]      ___sys_sendmsg+0xee/0x170
[ 2488.571576][   T10]      __sys_sendmsg+0xcd/0x170
[ 2488.571576][   T10]      do_syscall_64+0xc6/0x1e0
[ 2488.571576][   T10] 
[ 2488.573590][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2488.573590][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2488.573590][   T10]      ipv6_find_idev+0x102/0x170
[ 2488.573590][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2488.573590][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2488.573590][   T10]      netlink_rcv_skb+0x130/0x360
[ 2488.573590][   T10]      netlink_unicast+0x449/0x710
[ 2488.573590][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2488.573590][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2488.573590][   T10]      ___sys_sendmsg+0xee/0x170
[ 2488.573590][   T10]      __sys_sendmsg+0xcd/0x170
[ 2488.573590][   T10]      do_syscall_64+0xc6/0x1e0
[ 2488.573590][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2488.573590][   T10] 
[ 2488.575167][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2488.575167][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2488.575167][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2488.575167][   T10]      ipv6_find_idev+0x102/0x170
[ 2488.575167][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2488.575167][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2488.575167][   T10]      netlink_rcv_skb+0x130/0x360
[ 2488.575167][   T10]      netlink_unicast+0x449/0x710
[ 2488.575167][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2488.575167][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2488.575167][   T10]      ___sys_sendmsg+0xee/0x170
[ 2488.575167][   T10]      __sys_sendmsg+0xcd/0x170
[ 2488.575167][   T10]      do_syscall_64+0xc6/0x1e0
[ 2488.575167][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2488.575167][   T10] 
[ 2498.817773][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2498.818236][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2498.818236][   T10]      dst_init+0x84/0x4a0
[ 2498.818236][   T10]      dst_alloc+0x97/0x150
[ 2498.818236][   T10]      ip6_dst_alloc+0x23/0x90
[ 2498.818236][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2498.818236][   T10]      ip6_pol_route+0x56f/0x840
[ 2498.818236][   T10]      fib6_rule_lookup+0x456/0x630
[ 2498.818236][   T10]      ip6_route_input+0x59c/0xa50
[ 2498.818236][   T10]      ipv6_rcv+0x397/0x810
[ 2498.818236][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2498.818236][   T10]      process_backlog+0x101/0x620
[ 2498.818236][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2498.818236][   T10]      net_rx_action+0x495/0xbe0
[ 2498.818236][   T10]      __do_softirq+0x1b5/0x7f6
[ 2498.818236][   T10] 
[ 2498.819970][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2498.819970][   T10]      netdev_get_by_index+0x5e/0x80
[ 2498.819970][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2498.819970][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2498.819970][   T10]      ip6_route_add+0x1c/0x140
[ 2498.819970][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2498.819970][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2498.819970][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2498.819970][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2498.819970][   T10]      netlink_rcv_skb+0x130/0x360
[ 2498.819970][   T10]      netlink_unicast+0x449/0x710
[ 2498.819970][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2498.819970][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2498.819970][   T10]      ___sys_sendmsg+0xee/0x170
[ 2498.819970][   T10]      __sys_sendmsg+0xcd/0x170
[ 2498.819970][   T10]      do_syscall_64+0xc6/0x1e0
[ 2498.819970][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2498.819970][   T10] 
[ 2498.822051][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2498.822051][   T10]      netdev_get_by_index+0x5e/0x80
[ 2498.822051][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2498.822051][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2498.822051][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2498.822051][   T10]      ipv6_add_addr+0x411/0x2000
[ 2498.822051][   T10]      inet6_addr_add+0x30e/0xa40
[ 2498.822051][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2498.822051][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2498.822051][   T10]      netlink_rcv_skb+0x130/0x360
[ 2498.822051][   T10]      netlink_unicast+0x449/0x710
[ 2498.822051][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2498.822051][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2498.822051][   T10]      ___sys_sendmsg+0xee/0x170
[ 2498.822051][   T10]      __sys_sendmsg+0xcd/0x170
[ 2498.822051][   T10]      do_syscall_64+0xc6/0x1e0
[ 2498.822051][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2498.822051][   T10] 
[ 2498.824112][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2498.824112][   T10]      netdev_get_by_index+0x5e/0x80
[ 2498.824112][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2498.824112][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2498.824112][   T10]      ip6_route_add+0x1c/0x140
[ 2498.824112][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2498.824112][   T10]      addrconf_add_dev+0xe2/0x170
[ 2498.824112][   T10]      inet6_addr_add+0x12f/0xa40
[ 2498.824112][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2498.824112][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2498.824112][   T10]      netlink_rcv_skb+0x130/0x360
[ 2498.824112][   T10]      netlink_unicast+0x449/0x710
[ 2498.824112][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2498.824112][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2498.824112][   T10]      ___sys_sendmsg+0xee/0x170
[ 2498.824112][   T10]      __sys_sendmsg+0xcd/0x170
[ 2498.824112][   T10]      do_syscall_64+0xc6/0x1e0
[ 2498.824112][   T10] 
[ 2498.826127][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2498.826127][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2498.826127][   T10]      ipv6_find_idev+0x102/0x170
[ 2498.826127][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2498.826127][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2498.826127][   T10]      netlink_rcv_skb+0x130/0x360
[ 2498.826127][   T10]      netlink_unicast+0x449/0x710
[ 2498.826127][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2498.826127][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2498.826127][   T10]      ___sys_sendmsg+0xee/0x170
[ 2498.826127][   T10]      __sys_sendmsg+0xcd/0x170
[ 2498.826127][   T10]      do_syscall_64+0xc6/0x1e0
[ 2498.826127][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2498.826127][   T10] 
[ 2498.827708][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2498.827708][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2498.827708][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2498.827708][   T10]      ipv6_find_idev+0x102/0x170
[ 2498.827708][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2498.827708][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2498.827708][   T10]      netlink_rcv_skb+0x130/0x360
[ 2498.827708][   T10]      netlink_unicast+0x449/0x710
[ 2498.827708][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2498.827708][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2498.827708][   T10]      ___sys_sendmsg+0xee/0x170
[ 2498.827708][   T10]      __sys_sendmsg+0xcd/0x170
[ 2498.827708][   T10]      do_syscall_64+0xc6/0x1e0
[ 2498.827708][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2498.827708][   T10] 
[ 2498.829452][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2498.829706][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2498.829706][   T10]      dst_init+0x84/0x4a0
[ 2498.829706][   T10]      dst_alloc+0x97/0x150
[ 2498.829706][   T10]      ip6_dst_alloc+0x23/0x90
[ 2498.829706][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2498.829706][   T10]      ip6_pol_route+0x56f/0x840
[ 2498.829706][   T10]      fib6_rule_lookup+0x456/0x630
[ 2498.829706][   T10]      ip6_route_input+0x59c/0xa50
[ 2498.829706][   T10]      ipv6_rcv+0x397/0x810
[ 2498.829706][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2498.829706][   T10]      process_backlog+0x101/0x620
[ 2498.829706][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2498.829706][   T10]      net_rx_action+0x495/0xbe0
[ 2498.829706][   T10]      __do_softirq+0x1b5/0x7f6
[ 2498.829706][   T10] 
[ 2498.831405][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2498.831405][   T10]      netdev_get_by_index+0x5e/0x80
[ 2498.831405][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2498.831405][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2498.831405][   T10]      ip6_route_add+0x1c/0x140
[ 2498.831405][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2498.831405][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2498.831405][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2498.831405][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2498.831405][   T10]      netlink_rcv_skb+0x130/0x360
[ 2498.831405][   T10]      netlink_unicast+0x449/0x710
[ 2498.831405][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2498.831405][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2498.831405][   T10]      ___sys_sendmsg+0xee/0x170
[ 2498.831405][   T10]      __sys_sendmsg+0xcd/0x170
[ 2498.831405][   T10]      do_syscall_64+0xc6/0x1e0
[ 2498.831405][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2498.831405][   T10] 
[ 2498.833477][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2498.833477][   T10]      netdev_get_by_index+0x5e/0x80
[ 2498.833477][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2498.833477][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2498.833477][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2498.833477][   T10]      ipv6_add_addr+0x411/0x2000
[ 2498.833477][   T10]      inet6_addr_add+0x30e/0xa40
[ 2498.833477][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2498.833477][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2498.833477][   T10]      netlink_rcv_skb+0x130/0x360
[ 2498.833477][   T10]      netlink_unicast+0x449/0x710
[ 2498.833477][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2498.833477][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2498.833477][   T10]      ___sys_sendmsg+0xee/0x170
[ 2498.833477][   T10]      __sys_sendmsg+0xcd/0x170
[ 2498.833477][   T10]      do_syscall_64+0xc6/0x1e0
[ 2498.833477][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2498.833477][   T10] 
[ 2498.835535][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2498.835535][   T10]      netdev_get_by_index+0x5e/0x80
[ 2498.835535][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2498.835535][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2498.835535][   T10]      ip6_route_add+0x1c/0x140
[ 2498.835535][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2498.835535][   T10]      addrconf_add_dev+0xe2/0x170
[ 2498.835535][   T10]      inet6_addr_add+0x12f/0xa40
[ 2498.835535][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2498.835535][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2498.835535][   T10]      netlink_rcv_skb+0x130/0x360
[ 2498.835535][   T10]      netlink_unicast+0x449/0x710
[ 2498.835535][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2498.835535][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2498.835535][   T10]      ___sys_sendmsg+0xee/0x170
[ 2498.835535][   T10]      __sys_sendmsg+0xcd/0x170
[ 2498.835535][   T10]      do_syscall_64+0xc6/0x1e0
[ 2498.835535][   T10] 
[ 2498.837550][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2498.837550][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2498.837550][   T10]      ipv6_find_idev+0x102/0x170
[ 2498.837550][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2498.837550][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2498.837550][   T10]      netlink_rcv_skb+0x130/0x360
[ 2498.837550][   T10]      netlink_unicast+0x449/0x710
[ 2498.837550][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2498.837550][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2498.837550][   T10]      ___sys_sendmsg+0xee/0x170
[ 2498.837550][   T10]      __sys_sendmsg+0xcd/0x170
[ 2498.837550][   T10]      do_syscall_64+0xc6/0x1e0
[ 2498.837550][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2498.837550][   T10] 
[ 2498.839133][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2498.839133][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2498.839133][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2498.839133][   T10]      ipv6_find_idev+0x102/0x170
[ 2498.839133][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2498.839133][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2498.839133][   T10]      netlink_rcv_skb+0x130/0x360
[ 2498.839133][   T10]      netlink_unicast+0x449/0x710
[ 2498.839133][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2498.839133][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2498.839133][   T10]      ___sys_sendmsg+0xee/0x170
[ 2498.839133][   T10]      __sys_sendmsg+0xcd/0x170
[ 2498.839133][   T10]      do_syscall_64+0xc6/0x1e0
[ 2498.839133][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2498.839133][   T10] 
[ 2509.081774][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2509.082237][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2509.082237][   T10]      dst_init+0x84/0x4a0
[ 2509.082237][   T10]      dst_alloc+0x97/0x150
[ 2509.082237][   T10]      ip6_dst_alloc+0x23/0x90
[ 2509.082237][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2509.082237][   T10]      ip6_pol_route+0x56f/0x840
[ 2509.082237][   T10]      fib6_rule_lookup+0x456/0x630
[ 2509.082237][   T10]      ip6_route_input+0x59c/0xa50
[ 2509.082237][   T10]      ipv6_rcv+0x397/0x810
[ 2509.082237][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2509.082237][   T10]      process_backlog+0x101/0x620
[ 2509.082237][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2509.082237][   T10]      net_rx_action+0x495/0xbe0
[ 2509.082237][   T10]      __do_softirq+0x1b5/0x7f6
[ 2509.082237][   T10] 
[ 2509.083954][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2509.083954][   T10]      netdev_get_by_index+0x5e/0x80
[ 2509.083954][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2509.083954][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2509.083954][   T10]      ip6_route_add+0x1c/0x140
[ 2509.083954][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2509.083954][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2509.083954][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2509.083954][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2509.083954][   T10]      netlink_rcv_skb+0x130/0x360
[ 2509.083954][   T10]      netlink_unicast+0x449/0x710
[ 2509.083954][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2509.083954][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2509.083954][   T10]      ___sys_sendmsg+0xee/0x170
[ 2509.083954][   T10]      __sys_sendmsg+0xcd/0x170
[ 2509.083954][   T10]      do_syscall_64+0xc6/0x1e0
[ 2509.083954][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2509.083954][   T10] 
[ 2509.086022][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2509.086022][   T10]      netdev_get_by_index+0x5e/0x80
[ 2509.086022][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2509.086022][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2509.086022][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2509.086022][   T10]      ipv6_add_addr+0x411/0x2000
[ 2509.086022][   T10]      inet6_addr_add+0x30e/0xa40
[ 2509.086022][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2509.086022][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2509.086022][   T10]      netlink_rcv_skb+0x130/0x360
[ 2509.086022][   T10]      netlink_unicast+0x449/0x710
[ 2509.086022][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2509.086022][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2509.086022][   T10]      ___sys_sendmsg+0xee/0x170
[ 2509.086022][   T10]      __sys_sendmsg+0xcd/0x170
[ 2509.086022][   T10]      do_syscall_64+0xc6/0x1e0
[ 2509.086022][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2509.086022][   T10] 
[ 2509.088081][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2509.088081][   T10]      netdev_get_by_index+0x5e/0x80
[ 2509.088081][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2509.088081][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2509.088081][   T10]      ip6_route_add+0x1c/0x140
[ 2509.088081][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2509.088081][   T10]      addrconf_add_dev+0xe2/0x170
[ 2509.088081][   T10]      inet6_addr_add+0x12f/0xa40
[ 2509.088081][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2509.088081][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2509.088081][   T10]      netlink_rcv_skb+0x130/0x360
[ 2509.088081][   T10]      netlink_unicast+0x449/0x710
[ 2509.088081][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2509.088081][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2509.088081][   T10]      ___sys_sendmsg+0xee/0x170
[ 2509.088081][   T10]      __sys_sendmsg+0xcd/0x170
[ 2509.088081][   T10]      do_syscall_64+0xc6/0x1e0
[ 2509.088081][   T10] 
[ 2509.090101][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2509.090101][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2509.090101][   T10]      ipv6_find_idev+0x102/0x170
[ 2509.090101][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2509.090101][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2509.090101][   T10]      netlink_rcv_skb+0x130/0x360
[ 2509.090101][   T10]      netlink_unicast+0x449/0x710
[ 2509.090101][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2509.090101][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2509.090101][   T10]      ___sys_sendmsg+0xee/0x170
[ 2509.090101][   T10]      __sys_sendmsg+0xcd/0x170
[ 2509.090101][   T10]      do_syscall_64+0xc6/0x1e0
[ 2509.090101][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2509.090101][   T10] 
[ 2509.091694][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2509.091694][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2509.091694][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2509.091694][   T10]      ipv6_find_idev+0x102/0x170
[ 2509.091694][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2509.091694][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2509.091694][   T10]      netlink_rcv_skb+0x130/0x360
[ 2509.091694][   T10]      netlink_unicast+0x449/0x710
[ 2509.091694][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2509.091694][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2509.091694][   T10]      ___sys_sendmsg+0xee/0x170
[ 2509.091694][   T10]      __sys_sendmsg+0xcd/0x170
[ 2509.091694][   T10]      do_syscall_64+0xc6/0x1e0
[ 2509.091694][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2509.091694][   T10] 
[ 2509.093428][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2509.093675][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2509.093675][   T10]      dst_init+0x84/0x4a0
[ 2509.093675][   T10]      dst_alloc+0x97/0x150
[ 2509.093675][   T10]      ip6_dst_alloc+0x23/0x90
[ 2509.093675][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2509.093675][   T10]      ip6_pol_route+0x56f/0x840
[ 2509.093675][   T10]      fib6_rule_lookup+0x456/0x630
[ 2509.093675][   T10]      ip6_route_input+0x59c/0xa50
[ 2509.093675][   T10]      ipv6_rcv+0x397/0x810
[ 2509.093675][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2509.093675][   T10]      process_backlog+0x101/0x620
[ 2509.093675][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2509.093675][   T10]      net_rx_action+0x495/0xbe0
[ 2509.093675][   T10]      __do_softirq+0x1b5/0x7f6
[ 2509.093675][   T10] 
[ 2509.095354][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2509.095354][   T10]      netdev_get_by_index+0x5e/0x80
[ 2509.095354][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2509.095354][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2509.095354][   T10]      ip6_route_add+0x1c/0x140
[ 2509.095354][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2509.095354][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2509.095354][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2509.095354][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2509.095354][   T10]      netlink_rcv_skb+0x130/0x360
[ 2509.095354][   T10]      netlink_unicast+0x449/0x710
[ 2509.095354][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2509.095354][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2509.095354][   T10]      ___sys_sendmsg+0xee/0x170
[ 2509.095354][   T10]      __sys_sendmsg+0xcd/0x170
[ 2509.095354][   T10]      do_syscall_64+0xc6/0x1e0
[ 2509.095354][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2509.095354][   T10] 
[ 2509.097407][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2509.097407][   T10]      netdev_get_by_index+0x5e/0x80
[ 2509.097407][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2509.097407][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2509.097407][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2509.097407][   T10]      ipv6_add_addr+0x411/0x2000
[ 2509.097407][   T10]      inet6_addr_add+0x30e/0xa40
[ 2509.097407][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2509.097407][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2509.097407][   T10]      netlink_rcv_skb+0x130/0x360
[ 2509.097407][   T10]      netlink_unicast+0x449/0x710
[ 2509.097407][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2509.097407][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2509.097407][   T10]      ___sys_sendmsg+0xee/0x170
[ 2509.097407][   T10]      __sys_sendmsg+0xcd/0x170
[ 2509.097407][   T10]      do_syscall_64+0xc6/0x1e0
[ 2509.097407][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2509.097407][   T10] 
[ 2509.099475][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2509.099475][   T10]      netdev_get_by_index+0x5e/0x80
[ 2509.099475][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2509.099475][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2509.099475][   T10]      ip6_route_add+0x1c/0x140
[ 2509.099475][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2509.099475][   T10]      addrconf_add_dev+0xe2/0x170
[ 2509.099475][   T10]      inet6_addr_add+0x12f/0xa40
[ 2509.099475][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2509.099475][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2509.099475][   T10]      netlink_rcv_skb+0x130/0x360
[ 2509.099475][   T10]      netlink_unicast+0x449/0x710
[ 2509.099475][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2509.099475][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2509.099475][   T10]      ___sys_sendmsg+0xee/0x170
[ 2509.099475][   T10]      __sys_sendmsg+0xcd/0x170
[ 2509.099475][   T10]      do_syscall_64+0xc6/0x1e0
[ 2509.099475][   T10] 
[ 2509.101498][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2509.101498][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2509.101498][   T10]      ipv6_find_idev+0x102/0x170
[ 2509.101498][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2509.101498][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2509.101498][   T10]      netlink_rcv_skb+0x130/0x360
[ 2509.101498][   T10]      netlink_unicast+0x449/0x710
[ 2509.101498][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2509.101498][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2509.101498][   T10]      ___sys_sendmsg+0xee/0x170
[ 2509.101498][   T10]      __sys_sendmsg+0xcd/0x170
[ 2509.101498][   T10]      do_syscall_64+0xc6/0x1e0
[ 2509.101498][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2509.101498][   T10] 
[ 2509.103075][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2509.103075][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2509.103075][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2509.103075][   T10]      ipv6_find_idev+0x102/0x170
[ 2509.103075][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2509.103075][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2509.103075][   T10]      netlink_rcv_skb+0x130/0x360
[ 2509.103075][   T10]      netlink_unicast+0x449/0x710
[ 2509.103075][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2509.103075][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2509.103075][   T10]      ___sys_sendmsg+0xee/0x170
[ 2509.103075][   T10]      __sys_sendmsg+0xcd/0x170
[ 2509.103075][   T10]      do_syscall_64+0xc6/0x1e0
[ 2509.103075][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2509.103075][   T10] 
[ 2519.345780][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2519.346244][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2519.346244][   T10]      dst_init+0x84/0x4a0
[ 2519.346244][   T10]      dst_alloc+0x97/0x150
[ 2519.346244][   T10]      ip6_dst_alloc+0x23/0x90
[ 2519.346244][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2519.346244][   T10]      ip6_pol_route+0x56f/0x840
[ 2519.346244][   T10]      fib6_rule_lookup+0x456/0x630
[ 2519.346244][   T10]      ip6_route_input+0x59c/0xa50
[ 2519.346244][   T10]      ipv6_rcv+0x397/0x810
[ 2519.346244][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2519.346244][   T10]      process_backlog+0x101/0x620
[ 2519.346244][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2519.346244][   T10]      net_rx_action+0x495/0xbe0
[ 2519.346244][   T10]      __do_softirq+0x1b5/0x7f6
[ 2519.346244][   T10] 
[ 2519.347964][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2519.347964][   T10]      netdev_get_by_index+0x5e/0x80
[ 2519.347964][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2519.347964][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2519.347964][   T10]      ip6_route_add+0x1c/0x140
[ 2519.347964][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2519.347964][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2519.347964][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2519.347964][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2519.347964][   T10]      netlink_rcv_skb+0x130/0x360
[ 2519.347964][   T10]      netlink_unicast+0x449/0x710
[ 2519.347964][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2519.347964][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2519.347964][   T10]      ___sys_sendmsg+0xee/0x170
[ 2519.347964][   T10]      __sys_sendmsg+0xcd/0x170
[ 2519.347964][   T10]      do_syscall_64+0xc6/0x1e0
[ 2519.347964][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2519.347964][   T10] 
[ 2519.350020][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2519.350020][   T10]      netdev_get_by_index+0x5e/0x80
[ 2519.350020][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2519.350020][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2519.350020][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2519.350020][   T10]      ipv6_add_addr+0x411/0x2000
[ 2519.350020][   T10]      inet6_addr_add+0x30e/0xa40
[ 2519.350020][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2519.350020][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2519.350020][   T10]      netlink_rcv_skb+0x130/0x360
[ 2519.350020][   T10]      netlink_unicast+0x449/0x710
[ 2519.350020][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2519.350020][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2519.350020][   T10]      ___sys_sendmsg+0xee/0x170
[ 2519.350020][   T10]      __sys_sendmsg+0xcd/0x170
[ 2519.350020][   T10]      do_syscall_64+0xc6/0x1e0
[ 2519.350020][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2519.350020][   T10] 
[ 2519.352092][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2519.352092][   T10]      netdev_get_by_index+0x5e/0x80
[ 2519.352092][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2519.352092][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2519.352092][   T10]      ip6_route_add+0x1c/0x140
[ 2519.352092][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2519.352092][   T10]      addrconf_add_dev+0xe2/0x170
[ 2519.352092][   T10]      inet6_addr_add+0x12f/0xa40
[ 2519.352092][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2519.352092][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2519.352092][   T10]      netlink_rcv_skb+0x130/0x360
[ 2519.352092][   T10]      netlink_unicast+0x449/0x710
[ 2519.352092][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2519.352092][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2519.352092][   T10]      ___sys_sendmsg+0xee/0x170
[ 2519.352092][   T10]      __sys_sendmsg+0xcd/0x170
[ 2519.352092][   T10]      do_syscall_64+0xc6/0x1e0
[ 2519.352092][   T10] 
[ 2519.354098][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2519.354098][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2519.354098][   T10]      ipv6_find_idev+0x102/0x170
[ 2519.354098][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2519.354098][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2519.354098][   T10]      netlink_rcv_skb+0x130/0x360
[ 2519.354098][   T10]      netlink_unicast+0x449/0x710
[ 2519.354098][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2519.354098][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2519.354098][   T10]      ___sys_sendmsg+0xee/0x170
[ 2519.354098][   T10]      __sys_sendmsg+0xcd/0x170
[ 2519.354098][   T10]      do_syscall_64+0xc6/0x1e0
[ 2519.354098][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2519.354098][   T10] 
[ 2519.355676][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2519.355676][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2519.355676][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2519.355676][   T10]      ipv6_find_idev+0x102/0x170
[ 2519.355676][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2519.355676][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2519.355676][   T10]      netlink_rcv_skb+0x130/0x360
[ 2519.355676][   T10]      netlink_unicast+0x449/0x710
[ 2519.355676][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2519.355676][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2519.355676][   T10]      ___sys_sendmsg+0xee/0x170
[ 2519.355676][   T10]      __sys_sendmsg+0xcd/0x170
[ 2519.355676][   T10]      do_syscall_64+0xc6/0x1e0
[ 2519.355676][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2519.355676][   T10] 
[ 2519.357412][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2519.357661][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2519.357661][   T10]      dst_init+0x84/0x4a0
[ 2519.357661][   T10]      dst_alloc+0x97/0x150
[ 2519.357661][   T10]      ip6_dst_alloc+0x23/0x90
[ 2519.357661][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2519.357661][   T10]      ip6_pol_route+0x56f/0x840
[ 2519.357661][   T10]      fib6_rule_lookup+0x456/0x630
[ 2519.357661][   T10]      ip6_route_input+0x59c/0xa50
[ 2519.357661][   T10]      ipv6_rcv+0x397/0x810
[ 2519.357661][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2519.357661][   T10]      process_backlog+0x101/0x620
[ 2519.357661][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2519.357661][   T10]      net_rx_action+0x495/0xbe0
[ 2519.357661][   T10]      __do_softirq+0x1b5/0x7f6
[ 2519.357661][   T10] 
[ 2519.359343][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2519.359343][   T10]      netdev_get_by_index+0x5e/0x80
[ 2519.359343][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2519.359343][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2519.359343][   T10]      ip6_route_add+0x1c/0x140
[ 2519.359343][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2519.359343][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2519.359343][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2519.359343][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2519.359343][   T10]      netlink_rcv_skb+0x130/0x360
[ 2519.359343][   T10]      netlink_unicast+0x449/0x710
[ 2519.359343][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2519.359343][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2519.359343][   T10]      ___sys_sendmsg+0xee/0x170
[ 2519.359343][   T10]      __sys_sendmsg+0xcd/0x170
[ 2519.359343][   T10]      do_syscall_64+0xc6/0x1e0
[ 2519.359343][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2519.359343][   T10] 
[ 2519.361400][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2519.361400][   T10]      netdev_get_by_index+0x5e/0x80
[ 2519.361400][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2519.361400][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2519.361400][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2519.361400][   T10]      ipv6_add_addr+0x411/0x2000
[ 2519.361400][   T10]      inet6_addr_add+0x30e/0xa40
[ 2519.361400][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2519.361400][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2519.361400][   T10]      netlink_rcv_skb+0x130/0x360
[ 2519.361400][   T10]      netlink_unicast+0x449/0x710
[ 2519.361400][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2519.361400][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2519.361400][   T10]      ___sys_sendmsg+0xee/0x170
[ 2519.361400][   T10]      __sys_sendmsg+0xcd/0x170
[ 2519.361400][   T10]      do_syscall_64+0xc6/0x1e0
[ 2519.361400][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2519.361400][   T10] 
[ 2519.363439][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2519.363439][   T10]      netdev_get_by_index+0x5e/0x80
[ 2519.363439][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2519.363439][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2519.363439][   T10]      ip6_route_add+0x1c/0x140
[ 2519.363439][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2519.363439][   T10]      addrconf_add_dev+0xe2/0x170
[ 2519.363439][   T10]      inet6_addr_add+0x12f/0xa40
[ 2519.363439][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2519.363439][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2519.363439][   T10]      netlink_rcv_skb+0x130/0x360
[ 2519.363439][   T10]      netlink_unicast+0x449/0x710
[ 2519.363439][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2519.363439][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2519.363439][   T10]      ___sys_sendmsg+0xee/0x170
[ 2519.363439][   T10]      __sys_sendmsg+0xcd/0x170
[ 2519.363439][   T10]      do_syscall_64+0xc6/0x1e0
[ 2519.363439][   T10] 
[ 2519.365457][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2519.365457][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2519.365457][   T10]      ipv6_find_idev+0x102/0x170
[ 2519.365457][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2519.365457][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2519.365457][   T10]      netlink_rcv_skb+0x130/0x360
[ 2519.365457][   T10]      netlink_unicast+0x449/0x710
[ 2519.365457][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2519.365457][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2519.365457][   T10]      ___sys_sendmsg+0xee/0x170
[ 2519.365457][   T10]      __sys_sendmsg+0xcd/0x170
[ 2519.365457][   T10]      do_syscall_64+0xc6/0x1e0
[ 2519.365457][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2519.365457][   T10] 
[ 2519.367030][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2519.367030][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2519.367030][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2519.367030][   T10]      ipv6_find_idev+0x102/0x170
[ 2519.367030][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2519.367030][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2519.367030][   T10]      netlink_rcv_skb+0x130/0x360
[ 2519.367030][   T10]      netlink_unicast+0x449/0x710
[ 2519.367030][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2519.367030][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2519.367030][   T10]      ___sys_sendmsg+0xee/0x170
[ 2519.367030][   T10]      __sys_sendmsg+0xcd/0x170
[ 2519.367030][   T10]      do_syscall_64+0xc6/0x1e0
[ 2519.367030][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2519.367030][   T10] 
[ 2529.609781][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2529.610241][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2529.610241][   T10]      dst_init+0x84/0x4a0
[ 2529.610241][   T10]      dst_alloc+0x97/0x150
[ 2529.610241][   T10]      ip6_dst_alloc+0x23/0x90
[ 2529.610241][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2529.610241][   T10]      ip6_pol_route+0x56f/0x840
[ 2529.610241][   T10]      fib6_rule_lookup+0x456/0x630
[ 2529.610241][   T10]      ip6_route_input+0x59c/0xa50
[ 2529.610241][   T10]      ipv6_rcv+0x397/0x810
[ 2529.610241][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2529.610241][   T10]      process_backlog+0x101/0x620
[ 2529.610241][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2529.610241][   T10]      net_rx_action+0x495/0xbe0
[ 2529.610241][   T10]      __do_softirq+0x1b5/0x7f6
[ 2529.610241][   T10] 
[ 2529.611969][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2529.611969][   T10]      netdev_get_by_index+0x5e/0x80
[ 2529.611969][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2529.611969][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2529.611969][   T10]      ip6_route_add+0x1c/0x140
[ 2529.611969][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2529.611969][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2529.611969][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2529.611969][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2529.611969][   T10]      netlink_rcv_skb+0x130/0x360
[ 2529.611969][   T10]      netlink_unicast+0x449/0x710
[ 2529.611969][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2529.611969][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2529.611969][   T10]      ___sys_sendmsg+0xee/0x170
[ 2529.611969][   T10]      __sys_sendmsg+0xcd/0x170
[ 2529.611969][   T10]      do_syscall_64+0xc6/0x1e0
[ 2529.611969][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2529.611969][   T10] 
[ 2529.614030][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2529.614030][   T10]      netdev_get_by_index+0x5e/0x80
[ 2529.614030][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2529.614030][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2529.614030][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2529.614030][   T10]      ipv6_add_addr+0x411/0x2000
[ 2529.614030][   T10]      inet6_addr_add+0x30e/0xa40
[ 2529.614030][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2529.614030][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2529.614030][   T10]      netlink_rcv_skb+0x130/0x360
[ 2529.614030][   T10]      netlink_unicast+0x449/0x710
[ 2529.614030][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2529.614030][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2529.614030][   T10]      ___sys_sendmsg+0xee/0x170
[ 2529.614030][   T10]      __sys_sendmsg+0xcd/0x170
[ 2529.614030][   T10]      do_syscall_64+0xc6/0x1e0
[ 2529.614030][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2529.614030][   T10] 
[ 2529.616083][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2529.616083][   T10]      netdev_get_by_index+0x5e/0x80
[ 2529.616083][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2529.616083][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2529.616083][   T10]      ip6_route_add+0x1c/0x140
[ 2529.616083][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2529.616083][   T10]      addrconf_add_dev+0xe2/0x170
[ 2529.616083][   T10]      inet6_addr_add+0x12f/0xa40
[ 2529.616083][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2529.616083][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2529.616083][   T10]      netlink_rcv_skb+0x130/0x360
[ 2529.616083][   T10]      netlink_unicast+0x449/0x710
[ 2529.616083][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2529.616083][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2529.616083][   T10]      ___sys_sendmsg+0xee/0x170
[ 2529.616083][   T10]      __sys_sendmsg+0xcd/0x170
[ 2529.616083][   T10]      do_syscall_64+0xc6/0x1e0
[ 2529.616083][   T10] 
[ 2529.618091][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2529.618091][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2529.618091][   T10]      ipv6_find_idev+0x102/0x170
[ 2529.618091][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2529.618091][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2529.618091][   T10]      netlink_rcv_skb+0x130/0x360
[ 2529.618091][   T10]      netlink_unicast+0x449/0x710
[ 2529.618091][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2529.618091][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2529.618091][   T10]      ___sys_sendmsg+0xee/0x170
[ 2529.618091][   T10]      __sys_sendmsg+0xcd/0x170
[ 2529.618091][   T10]      do_syscall_64+0xc6/0x1e0
[ 2529.618091][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2529.618091][   T10] 
[ 2529.619666][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2529.619666][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2529.619666][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2529.619666][   T10]      ipv6_find_idev+0x102/0x170
[ 2529.619666][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2529.619666][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2529.619666][   T10]      netlink_rcv_skb+0x130/0x360
[ 2529.619666][   T10]      netlink_unicast+0x449/0x710
[ 2529.619666][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2529.619666][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2529.619666][   T10]      ___sys_sendmsg+0xee/0x170
[ 2529.619666][   T10]      __sys_sendmsg+0xcd/0x170
[ 2529.619666][   T10]      do_syscall_64+0xc6/0x1e0
[ 2529.619666][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2529.619666][   T10] 
[ 2529.621407][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2529.621669][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2529.621669][   T10]      dst_init+0x84/0x4a0
[ 2529.621669][   T10]      dst_alloc+0x97/0x150
[ 2529.621669][   T10]      ip6_dst_alloc+0x23/0x90
[ 2529.621669][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2529.621669][   T10]      ip6_pol_route+0x56f/0x840
[ 2529.621669][   T10]      fib6_rule_lookup+0x456/0x630
[ 2529.621669][   T10]      ip6_route_input+0x59c/0xa50
[ 2529.621669][   T10]      ipv6_rcv+0x397/0x810
[ 2529.621669][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2529.621669][   T10]      process_backlog+0x101/0x620
[ 2529.621669][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2529.621669][   T10]      net_rx_action+0x495/0xbe0
[ 2529.621669][   T10]      __do_softirq+0x1b5/0x7f6
[ 2529.621669][   T10] 
[ 2529.623343][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2529.623343][   T10]      netdev_get_by_index+0x5e/0x80
[ 2529.623343][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2529.623343][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2529.623343][   T10]      ip6_route_add+0x1c/0x140
[ 2529.623343][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2529.623343][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2529.623343][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2529.623343][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2529.623343][   T10]      netlink_rcv_skb+0x130/0x360
[ 2529.623343][   T10]      netlink_unicast+0x449/0x710
[ 2529.623343][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2529.623343][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2529.623343][   T10]      ___sys_sendmsg+0xee/0x170
[ 2529.623343][   T10]      __sys_sendmsg+0xcd/0x170
[ 2529.623343][   T10]      do_syscall_64+0xc6/0x1e0
[ 2529.623343][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2529.623343][   T10] 
[ 2529.625393][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2529.625393][   T10]      netdev_get_by_index+0x5e/0x80
[ 2529.625393][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2529.625393][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2529.625393][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2529.625393][   T10]      ipv6_add_addr+0x411/0x2000
[ 2529.625393][   T10]      inet6_addr_add+0x30e/0xa40
[ 2529.625393][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2529.625393][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2529.625393][   T10]      netlink_rcv_skb+0x130/0x360
[ 2529.625393][   T10]      netlink_unicast+0x449/0x710
[ 2529.625393][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2529.625393][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2529.625393][   T10]      ___sys_sendmsg+0xee/0x170
[ 2529.625393][   T10]      __sys_sendmsg+0xcd/0x170
[ 2529.625393][   T10]      do_syscall_64+0xc6/0x1e0
[ 2529.625393][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2529.625393][   T10] 
[ 2529.627441][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2529.627441][   T10]      netdev_get_by_index+0x5e/0x80
[ 2529.627441][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2529.627441][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2529.627441][   T10]      ip6_route_add+0x1c/0x140
[ 2529.627441][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2529.627441][   T10]      addrconf_add_dev+0xe2/0x170
[ 2529.627441][   T10]      inet6_addr_add+0x12f/0xa40
[ 2529.627441][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2529.627441][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2529.627441][   T10]      netlink_rcv_skb+0x130/0x360
[ 2529.627441][   T10]      netlink_unicast+0x449/0x710
[ 2529.627441][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2529.627441][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2529.627441][   T10]      ___sys_sendmsg+0xee/0x170
[ 2529.627441][   T10]      __sys_sendmsg+0xcd/0x170
[ 2529.627441][   T10]      do_syscall_64+0xc6/0x1e0
[ 2529.627441][   T10] 
[ 2529.629450][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2529.629450][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2529.629450][   T10]      ipv6_find_idev+0x102/0x170
[ 2529.629450][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2529.629450][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2529.629450][   T10]      netlink_rcv_skb+0x130/0x360
[ 2529.629450][   T10]      netlink_unicast+0x449/0x710
[ 2529.629450][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2529.629450][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2529.629450][   T10]      ___sys_sendmsg+0xee/0x170
[ 2529.629450][   T10]      __sys_sendmsg+0xcd/0x170
[ 2529.629450][   T10]      do_syscall_64+0xc6/0x1e0
[ 2529.629450][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2529.629450][   T10] 
[ 2529.631047][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2529.631047][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2529.631047][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2529.631047][   T10]      ipv6_find_idev+0x102/0x170
[ 2529.631047][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2529.631047][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2529.631047][   T10]      netlink_rcv_skb+0x130/0x360
[ 2529.631047][   T10]      netlink_unicast+0x449/0x710
[ 2529.631047][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2529.631047][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2529.631047][   T10]      ___sys_sendmsg+0xee/0x170
[ 2529.631047][   T10]      __sys_sendmsg+0xcd/0x170
[ 2529.631047][   T10]      do_syscall_64+0xc6/0x1e0
[ 2529.631047][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2529.631047][   T10] 
[ 2539.873785][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2539.874252][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2539.874252][   T10]      dst_init+0x84/0x4a0
[ 2539.874252][   T10]      dst_alloc+0x97/0x150
[ 2539.874252][   T10]      ip6_dst_alloc+0x23/0x90
[ 2539.874252][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2539.874252][   T10]      ip6_pol_route+0x56f/0x840
[ 2539.874252][   T10]      fib6_rule_lookup+0x456/0x630
[ 2539.874252][   T10]      ip6_route_input+0x59c/0xa50
[ 2539.874252][   T10]      ipv6_rcv+0x397/0x810
[ 2539.874252][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2539.874252][   T10]      process_backlog+0x101/0x620
[ 2539.874252][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2539.874252][   T10]      net_rx_action+0x495/0xbe0
[ 2539.874252][   T10]      __do_softirq+0x1b5/0x7f6
[ 2539.874252][   T10] 
[ 2539.875971][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2539.875971][   T10]      netdev_get_by_index+0x5e/0x80
[ 2539.875971][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2539.875971][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2539.875971][   T10]      ip6_route_add+0x1c/0x140
[ 2539.875971][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2539.875971][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2539.875971][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2539.875971][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2539.875971][   T10]      netlink_rcv_skb+0x130/0x360
[ 2539.875971][   T10]      netlink_unicast+0x449/0x710
[ 2539.875971][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2539.875971][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2539.875971][   T10]      ___sys_sendmsg+0xee/0x170
[ 2539.875971][   T10]      __sys_sendmsg+0xcd/0x170
[ 2539.875971][   T10]      do_syscall_64+0xc6/0x1e0
[ 2539.875971][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2539.875971][   T10] 
[ 2539.878034][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2539.878034][   T10]      netdev_get_by_index+0x5e/0x80
[ 2539.878034][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2539.878034][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2539.878034][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2539.878034][   T10]      ipv6_add_addr+0x411/0x2000
[ 2539.878034][   T10]      inet6_addr_add+0x30e/0xa40
[ 2539.878034][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2539.878034][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2539.878034][   T10]      netlink_rcv_skb+0x130/0x360
[ 2539.878034][   T10]      netlink_unicast+0x449/0x710
[ 2539.878034][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2539.878034][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2539.878034][   T10]      ___sys_sendmsg+0xee/0x170
[ 2539.878034][   T10]      __sys_sendmsg+0xcd/0x170
[ 2539.878034][   T10]      do_syscall_64+0xc6/0x1e0
[ 2539.878034][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2539.878034][   T10] 
[ 2539.880095][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2539.880095][   T10]      netdev_get_by_index+0x5e/0x80
[ 2539.880095][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2539.880095][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2539.880095][   T10]      ip6_route_add+0x1c/0x140
[ 2539.880095][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2539.880095][   T10]      addrconf_add_dev+0xe2/0x170
[ 2539.880095][   T10]      inet6_addr_add+0x12f/0xa40
[ 2539.880095][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2539.880095][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2539.880095][   T10]      netlink_rcv_skb+0x130/0x360
[ 2539.880095][   T10]      netlink_unicast+0x449/0x710
[ 2539.880095][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2539.880095][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2539.880095][   T10]      ___sys_sendmsg+0xee/0x170
[ 2539.880095][   T10]      __sys_sendmsg+0xcd/0x170
[ 2539.880095][   T10]      do_syscall_64+0xc6/0x1e0
[ 2539.880095][   T10] 
[ 2539.882117][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2539.882117][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2539.882117][   T10]      ipv6_find_idev+0x102/0x170
[ 2539.882117][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2539.882117][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2539.882117][   T10]      netlink_rcv_skb+0x130/0x360
[ 2539.882117][   T10]      netlink_unicast+0x449/0x710
[ 2539.882117][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2539.882117][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2539.882117][   T10]      ___sys_sendmsg+0xee/0x170
[ 2539.882117][   T10]      __sys_sendmsg+0xcd/0x170
[ 2539.882117][   T10]      do_syscall_64+0xc6/0x1e0
[ 2539.882117][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2539.882117][   T10] 
[ 2539.883703][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2539.883703][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2539.883703][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2539.883703][   T10]      ipv6_find_idev+0x102/0x170
[ 2539.883703][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2539.883703][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2539.883703][   T10]      netlink_rcv_skb+0x130/0x360
[ 2539.883703][   T10]      netlink_unicast+0x449/0x710
[ 2539.883703][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2539.883703][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2539.883703][   T10]      ___sys_sendmsg+0xee/0x170
[ 2539.883703][   T10]      __sys_sendmsg+0xcd/0x170
[ 2539.883703][   T10]      do_syscall_64+0xc6/0x1e0
[ 2539.883703][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2539.883703][   T10] 
[ 2539.885446][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2539.885697][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2539.885697][   T10]      dst_init+0x84/0x4a0
[ 2539.885697][   T10]      dst_alloc+0x97/0x150
[ 2539.885697][   T10]      ip6_dst_alloc+0x23/0x90
[ 2539.885697][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2539.885697][   T10]      ip6_pol_route+0x56f/0x840
[ 2539.885697][   T10]      fib6_rule_lookup+0x456/0x630
[ 2539.885697][   T10]      ip6_route_input+0x59c/0xa50
[ 2539.885697][   T10]      ipv6_rcv+0x397/0x810
[ 2539.885697][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2539.885697][   T10]      process_backlog+0x101/0x620
[ 2539.885697][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2539.885697][   T10]      net_rx_action+0x495/0xbe0
[ 2539.885697][   T10]      __do_softirq+0x1b5/0x7f6
[ 2539.885697][   T10] 
[ 2539.887379][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2539.887379][   T10]      netdev_get_by_index+0x5e/0x80
[ 2539.887379][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2539.887379][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2539.887379][   T10]      ip6_route_add+0x1c/0x140
[ 2539.887379][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2539.887379][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2539.887379][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2539.887379][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2539.887379][   T10]      netlink_rcv_skb+0x130/0x360
[ 2539.887379][   T10]      netlink_unicast+0x449/0x710
[ 2539.887379][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2539.887379][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2539.887379][   T10]      ___sys_sendmsg+0xee/0x170
[ 2539.887379][   T10]      __sys_sendmsg+0xcd/0x170
[ 2539.887379][   T10]      do_syscall_64+0xc6/0x1e0
[ 2539.887379][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2539.887379][   T10] 
[ 2539.889431][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2539.889431][   T10]      netdev_get_by_index+0x5e/0x80
[ 2539.889431][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2539.889431][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2539.889431][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2539.889431][   T10]      ipv6_add_addr+0x411/0x2000
[ 2539.889431][   T10]      inet6_addr_add+0x30e/0xa40
[ 2539.889431][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2539.889431][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2539.889431][   T10]      netlink_rcv_skb+0x130/0x360
[ 2539.889431][   T10]      netlink_unicast+0x449/0x710
[ 2539.889431][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2539.889431][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2539.889431][   T10]      ___sys_sendmsg+0xee/0x170
[ 2539.889431][   T10]      __sys_sendmsg+0xcd/0x170
[ 2539.889431][   T10]      do_syscall_64+0xc6/0x1e0
[ 2539.889431][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2539.889431][   T10] 
[ 2539.891491][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2539.891491][   T10]      netdev_get_by_index+0x5e/0x80
[ 2539.891491][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2539.891491][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2539.891491][   T10]      ip6_route_add+0x1c/0x140
[ 2539.891491][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2539.891491][   T10]      addrconf_add_dev+0xe2/0x170
[ 2539.891491][   T10]      inet6_addr_add+0x12f/0xa40
[ 2539.891491][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2539.891491][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2539.891491][   T10]      netlink_rcv_skb+0x130/0x360
[ 2539.891491][   T10]      netlink_unicast+0x449/0x710
[ 2539.891491][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2539.891491][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2539.891491][   T10]      ___sys_sendmsg+0xee/0x170
[ 2539.891491][   T10]      __sys_sendmsg+0xcd/0x170
[ 2539.891491][   T10]      do_syscall_64+0xc6/0x1e0
[ 2539.891491][   T10] 
[ 2539.893494][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2539.893494][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2539.893494][   T10]      ipv6_find_idev+0x102/0x170
[ 2539.893494][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2539.893494][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2539.893494][   T10]      netlink_rcv_skb+0x130/0x360
[ 2539.893494][   T10]      netlink_unicast+0x449/0x710
[ 2539.893494][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2539.893494][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2539.893494][   T10]      ___sys_sendmsg+0xee/0x170
[ 2539.893494][   T10]      __sys_sendmsg+0xcd/0x170
[ 2539.893494][   T10]      do_syscall_64+0xc6/0x1e0
[ 2539.893494][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2539.893494][   T10] 
[ 2539.895071][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2539.895071][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2539.895071][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2539.895071][   T10]      ipv6_find_idev+0x102/0x170
[ 2539.895071][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2539.895071][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2539.895071][   T10]      netlink_rcv_skb+0x130/0x360
[ 2539.895071][   T10]      netlink_unicast+0x449/0x710
[ 2539.895071][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2539.895071][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2539.895071][   T10]      ___sys_sendmsg+0xee/0x170
[ 2539.895071][   T10]      __sys_sendmsg+0xcd/0x170
[ 2539.895071][   T10]      do_syscall_64+0xc6/0x1e0
[ 2539.895071][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2539.895071][   T10] 
[ 2550.137778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2550.138249][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2550.138249][   T10]      dst_init+0x84/0x4a0
[ 2550.138249][   T10]      dst_alloc+0x97/0x150
[ 2550.138249][   T10]      ip6_dst_alloc+0x23/0x90
[ 2550.138249][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2550.138249][   T10]      ip6_pol_route+0x56f/0x840
[ 2550.138249][   T10]      fib6_rule_lookup+0x456/0x630
[ 2550.138249][   T10]      ip6_route_input+0x59c/0xa50
[ 2550.138249][   T10]      ipv6_rcv+0x397/0x810
[ 2550.138249][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2550.138249][   T10]      process_backlog+0x101/0x620
[ 2550.138249][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2550.138249][   T10]      net_rx_action+0x495/0xbe0
[ 2550.138249][   T10]      __do_softirq+0x1b5/0x7f6
[ 2550.138249][   T10] 
[ 2550.139966][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2550.139966][   T10]      netdev_get_by_index+0x5e/0x80
[ 2550.139966][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2550.139966][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2550.139966][   T10]      ip6_route_add+0x1c/0x140
[ 2550.139966][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2550.139966][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2550.139966][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2550.139966][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2550.139966][   T10]      netlink_rcv_skb+0x130/0x360
[ 2550.139966][   T10]      netlink_unicast+0x449/0x710
[ 2550.139966][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2550.139966][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2550.139966][   T10]      ___sys_sendmsg+0xee/0x170
[ 2550.139966][   T10]      __sys_sendmsg+0xcd/0x170
[ 2550.139966][   T10]      do_syscall_64+0xc6/0x1e0
[ 2550.139966][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2550.139966][   T10] 
[ 2550.142035][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2550.142035][   T10]      netdev_get_by_index+0x5e/0x80
[ 2550.142035][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2550.142035][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2550.142035][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2550.142035][   T10]      ipv6_add_addr+0x411/0x2000
[ 2550.142035][   T10]      inet6_addr_add+0x30e/0xa40
[ 2550.142035][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2550.142035][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2550.142035][   T10]      netlink_rcv_skb+0x130/0x360
[ 2550.142035][   T10]      netlink_unicast+0x449/0x710
[ 2550.142035][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2550.142035][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2550.142035][   T10]      ___sys_sendmsg+0xee/0x170
[ 2550.142035][   T10]      __sys_sendmsg+0xcd/0x170
[ 2550.142035][   T10]      do_syscall_64+0xc6/0x1e0
[ 2550.142035][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2550.142035][   T10] 
[ 2550.144088][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2550.144088][   T10]      netdev_get_by_index+0x5e/0x80
[ 2550.144088][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2550.144088][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2550.144088][   T10]      ip6_route_add+0x1c/0x140
[ 2550.144088][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2550.144088][   T10]      addrconf_add_dev+0xe2/0x170
[ 2550.144088][   T10]      inet6_addr_add+0x12f/0xa40
[ 2550.144088][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2550.144088][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2550.144088][   T10]      netlink_rcv_skb+0x130/0x360
[ 2550.144088][   T10]      netlink_unicast+0x449/0x710
[ 2550.144088][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2550.144088][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2550.144088][   T10]      ___sys_sendmsg+0xee/0x170
[ 2550.144088][   T10]      __sys_sendmsg+0xcd/0x170
[ 2550.144088][   T10]      do_syscall_64+0xc6/0x1e0
[ 2550.144088][   T10] 
[ 2550.146111][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2550.146111][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2550.146111][   T10]      ipv6_find_idev+0x102/0x170
[ 2550.146111][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2550.146111][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2550.146111][   T10]      netlink_rcv_skb+0x130/0x360
[ 2550.146111][   T10]      netlink_unicast+0x449/0x710
[ 2550.146111][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2550.146111][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2550.146111][   T10]      ___sys_sendmsg+0xee/0x170
[ 2550.146111][   T10]      __sys_sendmsg+0xcd/0x170
[ 2550.146111][   T10]      do_syscall_64+0xc6/0x1e0
[ 2550.146111][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2550.146111][   T10] 
[ 2550.147689][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2550.147689][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2550.147689][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2550.147689][   T10]      ipv6_find_idev+0x102/0x170
[ 2550.147689][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2550.147689][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2550.147689][   T10]      netlink_rcv_skb+0x130/0x360
[ 2550.147689][   T10]      netlink_unicast+0x449/0x710
[ 2550.147689][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2550.147689][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2550.147689][   T10]      ___sys_sendmsg+0xee/0x170
[ 2550.147689][   T10]      __sys_sendmsg+0xcd/0x170
[ 2550.147689][   T10]      do_syscall_64+0xc6/0x1e0
[ 2550.147689][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2550.147689][   T10] 
[ 2550.149422][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2550.149672][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2550.149672][   T10]      dst_init+0x84/0x4a0
[ 2550.149672][   T10]      dst_alloc+0x97/0x150
[ 2550.149672][   T10]      ip6_dst_alloc+0x23/0x90
[ 2550.149672][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2550.149672][   T10]      ip6_pol_route+0x56f/0x840
[ 2550.149672][   T10]      fib6_rule_lookup+0x456/0x630
[ 2550.149672][   T10]      ip6_route_input+0x59c/0xa50
[ 2550.149672][   T10]      ipv6_rcv+0x397/0x810
[ 2550.149672][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2550.149672][   T10]      process_backlog+0x101/0x620
[ 2550.149672][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2550.149672][   T10]      net_rx_action+0x495/0xbe0
[ 2550.149672][   T10]      __do_softirq+0x1b5/0x7f6
[ 2550.149672][   T10] 
[ 2550.151356][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2550.151356][   T10]      netdev_get_by_index+0x5e/0x80
[ 2550.151356][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2550.151356][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2550.151356][   T10]      ip6_route_add+0x1c/0x140
[ 2550.151356][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2550.151356][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2550.151356][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2550.151356][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2550.151356][   T10]      netlink_rcv_skb+0x130/0x360
[ 2550.151356][   T10]      netlink_unicast+0x449/0x710
[ 2550.151356][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2550.151356][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2550.151356][   T10]      ___sys_sendmsg+0xee/0x170
[ 2550.151356][   T10]      __sys_sendmsg+0xcd/0x170
[ 2550.151356][   T10]      do_syscall_64+0xc6/0x1e0
[ 2550.151356][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2550.151356][   T10] 
[ 2550.153413][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2550.153413][   T10]      netdev_get_by_index+0x5e/0x80
[ 2550.153413][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2550.153413][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2550.153413][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2550.153413][   T10]      ipv6_add_addr+0x411/0x2000
[ 2550.153413][   T10]      inet6_addr_add+0x30e/0xa40
[ 2550.153413][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2550.153413][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2550.153413][   T10]      netlink_rcv_skb+0x130/0x360
[ 2550.153413][   T10]      netlink_unicast+0x449/0x710
[ 2550.153413][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2550.153413][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2550.153413][   T10]      ___sys_sendmsg+0xee/0x170
[ 2550.153413][   T10]      __sys_sendmsg+0xcd/0x170
[ 2550.153413][   T10]      do_syscall_64+0xc6/0x1e0
[ 2550.153413][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2550.153413][   T10] 
[ 2550.156003][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2550.156003][   T10]      netdev_get_by_index+0x5e/0x80
[ 2550.156003][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2550.156003][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2550.156003][   T10]      ip6_route_add+0x1c/0x140
[ 2550.156003][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2550.156003][   T10]      addrconf_add_dev+0xe2/0x170
[ 2550.156003][   T10]      inet6_addr_add+0x12f/0xa40
[ 2550.156003][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2550.156003][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2550.156003][   T10]      netlink_rcv_skb+0x130/0x360
[ 2550.156003][   T10]      netlink_unicast+0x449/0x710
[ 2550.156003][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2550.156003][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2550.156003][   T10]      ___sys_sendmsg+0xee/0x170
[ 2550.156003][   T10]      __sys_sendmsg+0xcd/0x170
[ 2550.156003][   T10]      do_syscall_64+0xc6/0x1e0
[ 2550.156003][   T10] 
[ 2550.158013][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2550.158013][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2550.158013][   T10]      ipv6_find_idev+0x102/0x170
[ 2550.158013][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2550.158013][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2550.158013][   T10]      netlink_rcv_skb+0x130/0x360
[ 2550.158013][   T10]      netlink_unicast+0x449/0x710
[ 2550.158013][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2550.158013][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2550.158013][   T10]      ___sys_sendmsg+0xee/0x170
[ 2550.158013][   T10]      __sys_sendmsg+0xcd/0x170
[ 2550.158013][   T10]      do_syscall_64+0xc6/0x1e0
[ 2550.158013][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2550.158013][   T10] 
[ 2550.159595][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2550.159595][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2550.159595][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2550.159595][   T10]      ipv6_find_idev+0x102/0x170
[ 2550.159595][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2550.159595][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2550.159595][   T10]      netlink_rcv_skb+0x130/0x360
[ 2550.159595][   T10]      netlink_unicast+0x449/0x710
[ 2550.159595][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2550.159595][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2550.159595][   T10]      ___sys_sendmsg+0xee/0x170
[ 2550.159595][   T10]      __sys_sendmsg+0xcd/0x170
[ 2550.159595][   T10]      do_syscall_64+0xc6/0x1e0
[ 2550.159595][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2550.159595][   T10] 
[ 2560.401785][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2560.402255][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2560.402255][   T10]      dst_init+0x84/0x4a0
[ 2560.402255][   T10]      dst_alloc+0x97/0x150
[ 2560.402255][   T10]      ip6_dst_alloc+0x23/0x90
[ 2560.402255][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2560.402255][   T10]      ip6_pol_route+0x56f/0x840
[ 2560.402255][   T10]      fib6_rule_lookup+0x456/0x630
[ 2560.402255][   T10]      ip6_route_input+0x59c/0xa50
[ 2560.402255][   T10]      ipv6_rcv+0x397/0x810
[ 2560.402255][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2560.402255][   T10]      process_backlog+0x101/0x620
[ 2560.402255][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2560.402255][   T10]      net_rx_action+0x495/0xbe0
[ 2560.402255][   T10]      __do_softirq+0x1b5/0x7f6
[ 2560.402255][   T10] 
[ 2560.404369][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2560.404369][   T10]      netdev_get_by_index+0x5e/0x80
[ 2560.404369][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2560.404369][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2560.404369][   T10]      ip6_route_add+0x1c/0x140
[ 2560.404369][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2560.404369][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2560.404369][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2560.404369][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2560.404369][   T10]      netlink_rcv_skb+0x130/0x360
[ 2560.404369][   T10]      netlink_unicast+0x449/0x710
[ 2560.404369][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2560.404369][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2560.404369][   T10]      ___sys_sendmsg+0xee/0x170
[ 2560.404369][   T10]      __sys_sendmsg+0xcd/0x170
[ 2560.404369][   T10]      do_syscall_64+0xc6/0x1e0
[ 2560.404369][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2560.404369][   T10] 
[ 2560.406417][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2560.406417][   T10]      netdev_get_by_index+0x5e/0x80
[ 2560.406417][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2560.406417][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2560.406417][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2560.406417][   T10]      ipv6_add_addr+0x411/0x2000
[ 2560.406417][   T10]      inet6_addr_add+0x30e/0xa40
[ 2560.406417][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2560.406417][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2560.406417][   T10]      netlink_rcv_skb+0x130/0x360
[ 2560.406417][   T10]      netlink_unicast+0x449/0x710
[ 2560.406417][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2560.406417][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2560.406417][   T10]      ___sys_sendmsg+0xee/0x170
[ 2560.406417][   T10]      __sys_sendmsg+0xcd/0x170
[ 2560.406417][   T10]      do_syscall_64+0xc6/0x1e0
[ 2560.406417][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2560.406417][   T10] 
[ 2560.408465][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2560.408465][   T10]      netdev_get_by_index+0x5e/0x80
[ 2560.408465][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2560.408465][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2560.408465][   T10]      ip6_route_add+0x1c/0x140
[ 2560.408465][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2560.408465][   T10]      addrconf_add_dev+0xe2/0x170
[ 2560.408465][   T10]      inet6_addr_add+0x12f/0xa40
[ 2560.408465][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2560.408465][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2560.408465][   T10]      netlink_rcv_skb+0x130/0x360
[ 2560.408465][   T10]      netlink_unicast+0x449/0x710
[ 2560.408465][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2560.408465][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2560.408465][   T10]      ___sys_sendmsg+0xee/0x170
[ 2560.408465][   T10]      __sys_sendmsg+0xcd/0x170
[ 2560.408465][   T10]      do_syscall_64+0xc6/0x1e0
[ 2560.408465][   T10] 
[ 2560.410491][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2560.410491][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2560.410491][   T10]      ipv6_find_idev+0x102/0x170
[ 2560.410491][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2560.410491][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2560.410491][   T10]      netlink_rcv_skb+0x130/0x360
[ 2560.410491][   T10]      netlink_unicast+0x449/0x710
[ 2560.410491][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2560.410491][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2560.410491][   T10]      ___sys_sendmsg+0xee/0x170
[ 2560.410491][   T10]      __sys_sendmsg+0xcd/0x170
[ 2560.410491][   T10]      do_syscall_64+0xc6/0x1e0
[ 2560.410491][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2560.410491][   T10] 
[ 2560.412074][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2560.412074][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2560.412074][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2560.412074][   T10]      ipv6_find_idev+0x102/0x170
[ 2560.412074][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2560.412074][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2560.412074][   T10]      netlink_rcv_skb+0x130/0x360
[ 2560.412074][   T10]      netlink_unicast+0x449/0x710
[ 2560.412074][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2560.412074][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2560.412074][   T10]      ___sys_sendmsg+0xee/0x170
[ 2560.412074][   T10]      __sys_sendmsg+0xcd/0x170
[ 2560.412074][   T10]      do_syscall_64+0xc6/0x1e0
[ 2560.412074][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2560.412074][   T10] 
[ 2560.413812][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2560.414072][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2560.414072][   T10]      dst_init+0x84/0x4a0
[ 2560.414072][   T10]      dst_alloc+0x97/0x150
[ 2560.414072][   T10]      ip6_dst_alloc+0x23/0x90
[ 2560.414072][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2560.414072][   T10]      ip6_pol_route+0x56f/0x840
[ 2560.414072][   T10]      fib6_rule_lookup+0x456/0x630
[ 2560.414072][   T10]      ip6_route_input+0x59c/0xa50
[ 2560.414072][   T10]      ipv6_rcv+0x397/0x810
[ 2560.414072][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2560.414072][   T10]      process_backlog+0x101/0x620
[ 2560.414072][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2560.414072][   T10]      net_rx_action+0x495/0xbe0
[ 2560.414072][   T10]      __do_softirq+0x1b5/0x7f6
[ 2560.414072][   T10] 
[ 2560.415751][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2560.415751][   T10]      netdev_get_by_index+0x5e/0x80
[ 2560.415751][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2560.415751][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2560.415751][   T10]      ip6_route_add+0x1c/0x140
[ 2560.415751][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2560.415751][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2560.415751][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2560.415751][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2560.415751][   T10]      netlink_rcv_skb+0x130/0x360
[ 2560.415751][   T10]      netlink_unicast+0x449/0x710
[ 2560.415751][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2560.415751][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2560.415751][   T10]      ___sys_sendmsg+0xee/0x170
[ 2560.415751][   T10]      __sys_sendmsg+0xcd/0x170
[ 2560.415751][   T10]      do_syscall_64+0xc6/0x1e0
[ 2560.415751][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2560.415751][   T10] 
[ 2560.417812][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2560.417812][   T10]      netdev_get_by_index+0x5e/0x80
[ 2560.417812][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2560.417812][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2560.417812][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2560.417812][   T10]      ipv6_add_addr+0x411/0x2000
[ 2560.417812][   T10]      inet6_addr_add+0x30e/0xa40
[ 2560.417812][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2560.417812][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2560.417812][   T10]      netlink_rcv_skb+0x130/0x360
[ 2560.417812][   T10]      netlink_unicast+0x449/0x710
[ 2560.417812][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2560.417812][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2560.417812][   T10]      ___sys_sendmsg+0xee/0x170
[ 2560.417812][   T10]      __sys_sendmsg+0xcd/0x170
[ 2560.417812][   T10]      do_syscall_64+0xc6/0x1e0
[ 2560.417812][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2560.417812][   T10] 
[ 2560.419862][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2560.419862][   T10]      netdev_get_by_index+0x5e/0x80
[ 2560.419862][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2560.419862][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2560.419862][   T10]      ip6_route_add+0x1c/0x140
[ 2560.419862][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2560.419862][   T10]      addrconf_add_dev+0xe2/0x170
[ 2560.419862][   T10]      inet6_addr_add+0x12f/0xa40
[ 2560.419862][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2560.419862][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2560.419862][   T10]      netlink_rcv_skb+0x130/0x360
[ 2560.419862][   T10]      netlink_unicast+0x449/0x710
[ 2560.419862][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2560.419862][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2560.419862][   T10]      ___sys_sendmsg+0xee/0x170
[ 2560.419862][   T10]      __sys_sendmsg+0xcd/0x170
[ 2560.419862][   T10]      do_syscall_64+0xc6/0x1e0
[ 2560.419862][   T10] 
[ 2560.421878][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2560.421878][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2560.421878][   T10]      ipv6_find_idev+0x102/0x170
[ 2560.421878][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2560.421878][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2560.421878][   T10]      netlink_rcv_skb+0x130/0x360
[ 2560.421878][   T10]      netlink_unicast+0x449/0x710
[ 2560.421878][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2560.421878][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2560.421878][   T10]      ___sys_sendmsg+0xee/0x170
[ 2560.421878][   T10]      __sys_sendmsg+0xcd/0x170
[ 2560.421878][   T10]      do_syscall_64+0xc6/0x1e0
[ 2560.421878][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2560.421878][   T10] 
[ 2560.423454][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2560.423454][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2560.423454][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2560.423454][   T10]      ipv6_find_idev+0x102/0x170
[ 2560.423454][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2560.423454][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2560.423454][   T10]      netlink_rcv_skb+0x130/0x360
[ 2560.423454][   T10]      netlink_unicast+0x449/0x710
[ 2560.423454][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2560.423454][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2560.423454][   T10]      ___sys_sendmsg+0xee/0x170
[ 2560.423454][   T10]      __sys_sendmsg+0xcd/0x170
[ 2560.423454][   T10]      do_syscall_64+0xc6/0x1e0
[ 2560.423454][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2560.423454][   T10] 
[ 2570.665796][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2570.666307][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2570.666307][   T10]      dst_init+0x84/0x4a0
[ 2570.666307][   T10]      dst_alloc+0x97/0x150
[ 2570.666307][   T10]      ip6_dst_alloc+0x23/0x90
[ 2570.666307][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2570.666307][   T10]      ip6_pol_route+0x56f/0x840
[ 2570.666307][   T10]      fib6_rule_lookup+0x456/0x630
[ 2570.666307][   T10]      ip6_route_input+0x59c/0xa50
[ 2570.666307][   T10]      ipv6_rcv+0x397/0x810
[ 2570.666307][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2570.666307][   T10]      process_backlog+0x101/0x620
[ 2570.666307][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2570.666307][   T10]      net_rx_action+0x495/0xbe0
[ 2570.666307][   T10]      __do_softirq+0x1b5/0x7f6
[ 2570.666307][   T10] 
[ 2570.668055][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2570.668055][   T10]      netdev_get_by_index+0x5e/0x80
[ 2570.668055][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2570.668055][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2570.668055][   T10]      ip6_route_add+0x1c/0x140
[ 2570.668055][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2570.668055][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2570.668055][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2570.668055][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2570.668055][   T10]      netlink_rcv_skb+0x130/0x360
[ 2570.668055][   T10]      netlink_unicast+0x449/0x710
[ 2570.668055][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2570.668055][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2570.668055][   T10]      ___sys_sendmsg+0xee/0x170
[ 2570.668055][   T10]      __sys_sendmsg+0xcd/0x170
[ 2570.668055][   T10]      do_syscall_64+0xc6/0x1e0
[ 2570.668055][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2570.668055][   T10] 
[ 2570.670138][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2570.670138][   T10]      netdev_get_by_index+0x5e/0x80
[ 2570.670138][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2570.670138][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2570.670138][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2570.670138][   T10]      ipv6_add_addr+0x411/0x2000
[ 2570.670138][   T10]      inet6_addr_add+0x30e/0xa40
[ 2570.670138][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2570.670138][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2570.670138][   T10]      netlink_rcv_skb+0x130/0x360
[ 2570.670138][   T10]      netlink_unicast+0x449/0x710
[ 2570.670138][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2570.670138][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2570.670138][   T10]      ___sys_sendmsg+0xee/0x170
[ 2570.670138][   T10]      __sys_sendmsg+0xcd/0x170
[ 2570.670138][   T10]      do_syscall_64+0xc6/0x1e0
[ 2570.670138][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2570.670138][   T10] 
[ 2570.672219][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2570.672219][   T10]      netdev_get_by_index+0x5e/0x80
[ 2570.672219][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2570.672219][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2570.672219][   T10]      ip6_route_add+0x1c/0x140
[ 2570.672219][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2570.672219][   T10]      addrconf_add_dev+0xe2/0x170
[ 2570.672219][   T10]      inet6_addr_add+0x12f/0xa40
[ 2570.672219][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2570.672219][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2570.672219][   T10]      netlink_rcv_skb+0x130/0x360
[ 2570.672219][   T10]      netlink_unicast+0x449/0x710
[ 2570.672219][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2570.672219][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2570.672219][   T10]      ___sys_sendmsg+0xee/0x170
[ 2570.672219][   T10]      __sys_sendmsg+0xcd/0x170
[ 2570.672219][   T10]      do_syscall_64+0xc6/0x1e0
[ 2570.672219][   T10] 
[ 2570.674448][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2570.674448][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2570.674448][   T10]      ipv6_find_idev+0x102/0x170
[ 2570.674448][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2570.674448][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2570.674448][   T10]      netlink_rcv_skb+0x130/0x360
[ 2570.674448][   T10]      netlink_unicast+0x449/0x710
[ 2570.674448][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2570.674448][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2570.674448][   T10]      ___sys_sendmsg+0xee/0x170
[ 2570.674448][   T10]      __sys_sendmsg+0xcd/0x170
[ 2570.674448][   T10]      do_syscall_64+0xc6/0x1e0
[ 2570.674448][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2570.674448][   T10] 
[ 2570.676052][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2570.676052][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2570.676052][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2570.676052][   T10]      ipv6_find_idev+0x102/0x170
[ 2570.676052][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2570.676052][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2570.676052][   T10]      netlink_rcv_skb+0x130/0x360
[ 2570.676052][   T10]      netlink_unicast+0x449/0x710
[ 2570.676052][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2570.676052][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2570.676052][   T10]      ___sys_sendmsg+0xee/0x170
[ 2570.676052][   T10]      __sys_sendmsg+0xcd/0x170
[ 2570.676052][   T10]      do_syscall_64+0xc6/0x1e0
[ 2570.676052][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2570.676052][   T10] 
[ 2570.678181][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2570.678442][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2570.678442][   T10]      dst_init+0x84/0x4a0
[ 2570.678442][   T10]      dst_alloc+0x97/0x150
[ 2570.678442][   T10]      ip6_dst_alloc+0x23/0x90
[ 2570.678442][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2570.678442][   T10]      ip6_pol_route+0x56f/0x840
[ 2570.678442][   T10]      fib6_rule_lookup+0x456/0x630
[ 2570.678442][   T10]      ip6_route_input+0x59c/0xa50
[ 2570.678442][   T10]      ipv6_rcv+0x397/0x810
[ 2570.678442][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2570.678442][   T10]      process_backlog+0x101/0x620
[ 2570.678442][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2570.678442][   T10]      net_rx_action+0x495/0xbe0
[ 2570.678442][   T10]      __do_softirq+0x1b5/0x7f6
[ 2570.678442][   T10] 
[ 2570.680140][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2570.680140][   T10]      netdev_get_by_index+0x5e/0x80
[ 2570.680140][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2570.680140][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2570.680140][   T10]      ip6_route_add+0x1c/0x140
[ 2570.680140][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2570.680140][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2570.680140][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2570.680140][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2570.680140][   T10]      netlink_rcv_skb+0x130/0x360
[ 2570.680140][   T10]      netlink_unicast+0x449/0x710
[ 2570.680140][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2570.680140][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2570.680140][   T10]      ___sys_sendmsg+0xee/0x170
[ 2570.680140][   T10]      __sys_sendmsg+0xcd/0x170
[ 2570.680140][   T10]      do_syscall_64+0xc6/0x1e0
[ 2570.680140][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2570.680140][   T10] 
[ 2570.682247][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2570.682247][   T10]      netdev_get_by_index+0x5e/0x80
[ 2570.682247][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2570.682247][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2570.682247][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2570.682247][   T10]      ipv6_add_addr+0x411/0x2000
[ 2570.682247][   T10]      inet6_addr_add+0x30e/0xa40
[ 2570.682247][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2570.682247][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2570.682247][   T10]      netlink_rcv_skb+0x130/0x360
[ 2570.682247][   T10]      netlink_unicast+0x449/0x710
[ 2570.682247][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2570.682247][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2570.682247][   T10]      ___sys_sendmsg+0xee/0x170
[ 2570.682247][   T10]      __sys_sendmsg+0xcd/0x170
[ 2570.682247][   T10]      do_syscall_64+0xc6/0x1e0
[ 2570.682247][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2570.682247][   T10] 
[ 2570.684317][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2570.684317][   T10]      netdev_get_by_index+0x5e/0x80
[ 2570.684317][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2570.684317][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2570.684317][   T10]      ip6_route_add+0x1c/0x140
[ 2570.684317][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2570.684317][   T10]      addrconf_add_dev+0xe2/0x170
[ 2570.684317][   T10]      inet6_addr_add+0x12f/0xa40
[ 2570.684317][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2570.684317][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2570.684317][   T10]      netlink_rcv_skb+0x130/0x360
[ 2570.684317][   T10]      netlink_unicast+0x449/0x710
[ 2570.684317][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2570.684317][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2570.684317][   T10]      ___sys_sendmsg+0xee/0x170
[ 2570.684317][   T10]      __sys_sendmsg+0xcd/0x170
[ 2570.684317][   T10]      do_syscall_64+0xc6/0x1e0
[ 2570.684317][   T10] 
[ 2570.686338][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2570.686338][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2570.686338][   T10]      ipv6_find_idev+0x102/0x170
[ 2570.686338][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2570.686338][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2570.686338][   T10]      netlink_rcv_skb+0x130/0x360
[ 2570.686338][   T10]      netlink_unicast+0x449/0x710
[ 2570.686338][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2570.686338][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2570.686338][   T10]      ___sys_sendmsg+0xee/0x170
[ 2570.686338][   T10]      __sys_sendmsg+0xcd/0x170
[ 2570.686338][   T10]      do_syscall_64+0xc6/0x1e0
[ 2570.686338][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2570.686338][   T10] 
[ 2570.687928][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2570.687928][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2570.687928][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2570.687928][   T10]      ipv6_find_idev+0x102/0x170
[ 2570.687928][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2570.687928][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2570.687928][   T10]      netlink_rcv_skb+0x130/0x360
[ 2570.687928][   T10]      netlink_unicast+0x449/0x710
[ 2570.687928][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2570.687928][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2570.687928][   T10]      ___sys_sendmsg+0xee/0x170
[ 2570.687928][   T10]      __sys_sendmsg+0xcd/0x170
[ 2570.687928][   T10]      do_syscall_64+0xc6/0x1e0
[ 2570.687928][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2570.687928][   T10] 
[ 2580.929775][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2580.930188][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2580.930188][   T10]      dst_init+0x84/0x4a0
[ 2580.930188][   T10]      dst_alloc+0x97/0x150
[ 2580.930188][   T10]      ip6_dst_alloc+0x23/0x90
[ 2580.930188][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2580.930188][   T10]      ip6_pol_route+0x56f/0x840
[ 2580.930188][   T10]      fib6_rule_lookup+0x456/0x630
[ 2580.930188][   T10]      ip6_route_input+0x59c/0xa50
[ 2580.930188][   T10]      ipv6_rcv+0x397/0x810
[ 2580.930188][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2580.930188][   T10]      process_backlog+0x101/0x620
[ 2580.930188][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2580.930188][   T10]      net_rx_action+0x495/0xbe0
[ 2580.930188][   T10]      __do_softirq+0x1b5/0x7f6
[ 2580.930188][   T10] 
[ 2580.931946][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2580.931946][   T10]      netdev_get_by_index+0x5e/0x80
[ 2580.931946][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2580.931946][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2580.931946][   T10]      ip6_route_add+0x1c/0x140
[ 2580.931946][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2580.931946][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2580.931946][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2580.931946][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2580.931946][   T10]      netlink_rcv_skb+0x130/0x360
[ 2580.931946][   T10]      netlink_unicast+0x449/0x710
[ 2580.931946][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2580.931946][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2580.931946][   T10]      ___sys_sendmsg+0xee/0x170
[ 2580.931946][   T10]      __sys_sendmsg+0xcd/0x170
[ 2580.931946][   T10]      do_syscall_64+0xc6/0x1e0
[ 2580.931946][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2580.931946][   T10] 
[ 2580.934033][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2580.934033][   T10]      netdev_get_by_index+0x5e/0x80
[ 2580.934033][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2580.934033][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2580.934033][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2580.934033][   T10]      ipv6_add_addr+0x411/0x2000
[ 2580.934033][   T10]      inet6_addr_add+0x30e/0xa40
[ 2580.934033][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2580.934033][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2580.934033][   T10]      netlink_rcv_skb+0x130/0x360
[ 2580.934033][   T10]      netlink_unicast+0x449/0x710
[ 2580.934033][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2580.934033][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2580.934033][   T10]      ___sys_sendmsg+0xee/0x170
[ 2580.934033][   T10]      __sys_sendmsg+0xcd/0x170
[ 2580.934033][   T10]      do_syscall_64+0xc6/0x1e0
[ 2580.934033][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2580.934033][   T10] 
[ 2580.936105][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2580.936105][   T10]      netdev_get_by_index+0x5e/0x80
[ 2580.936105][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2580.936105][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2580.936105][   T10]      ip6_route_add+0x1c/0x140
[ 2580.936105][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2580.936105][   T10]      addrconf_add_dev+0xe2/0x170
[ 2580.936105][   T10]      inet6_addr_add+0x12f/0xa40
[ 2580.936105][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2580.936105][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2580.936105][   T10]      netlink_rcv_skb+0x130/0x360
[ 2580.936105][   T10]      netlink_unicast+0x449/0x710
[ 2580.936105][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2580.936105][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2580.936105][   T10]      ___sys_sendmsg+0xee/0x170
[ 2580.936105][   T10]      __sys_sendmsg+0xcd/0x170
[ 2580.936105][   T10]      do_syscall_64+0xc6/0x1e0
[ 2580.936105][   T10] 
[ 2580.938142][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2580.938142][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2580.938142][   T10]      ipv6_find_idev+0x102/0x170
[ 2580.938142][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2580.938142][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2580.938142][   T10]      netlink_rcv_skb+0x130/0x360
[ 2580.938142][   T10]      netlink_unicast+0x449/0x710
[ 2580.938142][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2580.938142][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2580.938142][   T10]      ___sys_sendmsg+0xee/0x170
[ 2580.938142][   T10]      __sys_sendmsg+0xcd/0x170
[ 2580.938142][   T10]      do_syscall_64+0xc6/0x1e0
[ 2580.938142][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2580.938142][   T10] 
[ 2580.939727][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2580.939727][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2580.939727][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2580.939727][   T10]      ipv6_find_idev+0x102/0x170
[ 2580.939727][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2580.939727][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2580.939727][   T10]      netlink_rcv_skb+0x130/0x360
[ 2580.939727][   T10]      netlink_unicast+0x449/0x710
[ 2580.939727][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2580.939727][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2580.939727][   T10]      ___sys_sendmsg+0xee/0x170
[ 2580.939727][   T10]      __sys_sendmsg+0xcd/0x170
[ 2580.939727][   T10]      do_syscall_64+0xc6/0x1e0
[ 2580.939727][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2580.939727][   T10] 
[ 2580.941487][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2580.941755][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2580.941755][   T10]      dst_init+0x84/0x4a0
[ 2580.941755][   T10]      dst_alloc+0x97/0x150
[ 2580.941755][   T10]      ip6_dst_alloc+0x23/0x90
[ 2580.941755][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2580.941755][   T10]      ip6_pol_route+0x56f/0x840
[ 2580.941755][   T10]      fib6_rule_lookup+0x456/0x630
[ 2580.941755][   T10]      ip6_route_input+0x59c/0xa50
[ 2580.941755][   T10]      ipv6_rcv+0x397/0x810
[ 2580.941755][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2580.941755][   T10]      process_backlog+0x101/0x620
[ 2580.941755][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2580.941755][   T10]      net_rx_action+0x495/0xbe0
[ 2580.941755][   T10]      __do_softirq+0x1b5/0x7f6
[ 2580.941755][   T10] 
[ 2580.943445][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2580.943445][   T10]      netdev_get_by_index+0x5e/0x80
[ 2580.943445][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2580.943445][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2580.943445][   T10]      ip6_route_add+0x1c/0x140
[ 2580.943445][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2580.943445][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2580.943445][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2580.943445][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2580.943445][   T10]      netlink_rcv_skb+0x130/0x360
[ 2580.943445][   T10]      netlink_unicast+0x449/0x710
[ 2580.943445][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2580.943445][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2580.943445][   T10]      ___sys_sendmsg+0xee/0x170
[ 2580.943445][   T10]      __sys_sendmsg+0xcd/0x170
[ 2580.943445][   T10]      do_syscall_64+0xc6/0x1e0
[ 2580.943445][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2580.943445][   T10] 
[ 2580.945508][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2580.945508][   T10]      netdev_get_by_index+0x5e/0x80
[ 2580.945508][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2580.945508][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2580.945508][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2580.945508][   T10]      ipv6_add_addr+0x411/0x2000
[ 2580.945508][   T10]      inet6_addr_add+0x30e/0xa40
[ 2580.945508][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2580.945508][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2580.945508][   T10]      netlink_rcv_skb+0x130/0x360
[ 2580.945508][   T10]      netlink_unicast+0x449/0x710
[ 2580.945508][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2580.945508][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2580.945508][   T10]      ___sys_sendmsg+0xee/0x170
[ 2580.945508][   T10]      __sys_sendmsg+0xcd/0x170
[ 2580.945508][   T10]      do_syscall_64+0xc6/0x1e0
[ 2580.945508][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2580.945508][   T10] 
[ 2580.947564][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2580.947564][   T10]      netdev_get_by_index+0x5e/0x80
[ 2580.947564][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2580.947564][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2580.947564][   T10]      ip6_route_add+0x1c/0x140
[ 2580.947564][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2580.947564][   T10]      addrconf_add_dev+0xe2/0x170
[ 2580.947564][   T10]      inet6_addr_add+0x12f/0xa40
[ 2580.947564][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2580.947564][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2580.947564][   T10]      netlink_rcv_skb+0x130/0x360
[ 2580.947564][   T10]      netlink_unicast+0x449/0x710
[ 2580.947564][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2580.947564][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2580.947564][   T10]      ___sys_sendmsg+0xee/0x170
[ 2580.947564][   T10]      __sys_sendmsg+0xcd/0x170
[ 2580.947564][   T10]      do_syscall_64+0xc6/0x1e0
[ 2580.947564][   T10] 
[ 2580.949585][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2580.949585][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2580.949585][   T10]      ipv6_find_idev+0x102/0x170
[ 2580.949585][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2580.949585][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2580.949585][   T10]      netlink_rcv_skb+0x130/0x360
[ 2580.949585][   T10]      netlink_unicast+0x449/0x710
[ 2580.949585][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2580.949585][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2580.949585][   T10]      ___sys_sendmsg+0xee/0x170
[ 2580.949585][   T10]      __sys_sendmsg+0xcd/0x170
[ 2580.949585][   T10]      do_syscall_64+0xc6/0x1e0
[ 2580.949585][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2580.949585][   T10] 
[ 2580.951170][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2580.951170][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2580.951170][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2580.951170][   T10]      ipv6_find_idev+0x102/0x170
[ 2580.951170][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2580.951170][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2580.951170][   T10]      netlink_rcv_skb+0x130/0x360
[ 2580.951170][   T10]      netlink_unicast+0x449/0x710
[ 2580.951170][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2580.951170][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2580.951170][   T10]      ___sys_sendmsg+0xee/0x170
[ 2580.951170][   T10]      __sys_sendmsg+0xcd/0x170
[ 2580.951170][   T10]      do_syscall_64+0xc6/0x1e0
[ 2580.951170][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2580.951170][   T10] 
[ 2591.193778][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2591.194203][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2591.194203][   T10]      dst_init+0x84/0x4a0
[ 2591.194203][   T10]      dst_alloc+0x97/0x150
[ 2591.194203][   T10]      ip6_dst_alloc+0x23/0x90
[ 2591.194203][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2591.194203][   T10]      ip6_pol_route+0x56f/0x840
[ 2591.194203][   T10]      fib6_rule_lookup+0x456/0x630
[ 2591.194203][   T10]      ip6_route_input+0x59c/0xa50
[ 2591.194203][   T10]      ipv6_rcv+0x397/0x810
[ 2591.194203][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2591.194203][   T10]      process_backlog+0x101/0x620
[ 2591.194203][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2591.194203][   T10]      net_rx_action+0x495/0xbe0
[ 2591.194203][   T10]      __do_softirq+0x1b5/0x7f6
[ 2591.194203][   T10] 
[ 2591.195938][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2591.195938][   T10]      netdev_get_by_index+0x5e/0x80
[ 2591.195938][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2591.195938][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2591.195938][   T10]      ip6_route_add+0x1c/0x140
[ 2591.195938][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2591.195938][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2591.195938][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2591.195938][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2591.195938][   T10]      netlink_rcv_skb+0x130/0x360
[ 2591.195938][   T10]      netlink_unicast+0x449/0x710
[ 2591.195938][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2591.195938][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2591.195938][   T10]      ___sys_sendmsg+0xee/0x170
[ 2591.195938][   T10]      __sys_sendmsg+0xcd/0x170
[ 2591.195938][   T10]      do_syscall_64+0xc6/0x1e0
[ 2591.195938][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2591.195938][   T10] 
[ 2591.198013][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2591.198013][   T10]      netdev_get_by_index+0x5e/0x80
[ 2591.198013][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2591.198013][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2591.198013][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2591.198013][   T10]      ipv6_add_addr+0x411/0x2000
[ 2591.198013][   T10]      inet6_addr_add+0x30e/0xa40
[ 2591.198013][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2591.198013][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2591.198013][   T10]      netlink_rcv_skb+0x130/0x360
[ 2591.198013][   T10]      netlink_unicast+0x449/0x710
[ 2591.198013][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2591.198013][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2591.198013][   T10]      ___sys_sendmsg+0xee/0x170
[ 2591.198013][   T10]      __sys_sendmsg+0xcd/0x170
[ 2591.198013][   T10]      do_syscall_64+0xc6/0x1e0
[ 2591.198013][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2591.198013][   T10] 
[ 2591.200083][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2591.200083][   T10]      netdev_get_by_index+0x5e/0x80
[ 2591.200083][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2591.200083][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2591.200083][   T10]      ip6_route_add+0x1c/0x140
[ 2591.200083][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2591.200083][   T10]      addrconf_add_dev+0xe2/0x170
[ 2591.200083][   T10]      inet6_addr_add+0x12f/0xa40
[ 2591.200083][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2591.200083][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2591.200083][   T10]      netlink_rcv_skb+0x130/0x360
[ 2591.200083][   T10]      netlink_unicast+0x449/0x710
[ 2591.200083][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2591.200083][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2591.200083][   T10]      ___sys_sendmsg+0xee/0x170
[ 2591.200083][   T10]      __sys_sendmsg+0xcd/0x170
[ 2591.200083][   T10]      do_syscall_64+0xc6/0x1e0
[ 2591.200083][   T10] 
[ 2591.202147][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2591.202147][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2591.202147][   T10]      ipv6_find_idev+0x102/0x170
[ 2591.202147][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2591.202147][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2591.202147][   T10]      netlink_rcv_skb+0x130/0x360
[ 2591.202147][   T10]      netlink_unicast+0x449/0x710
[ 2591.202147][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2591.202147][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2591.202147][   T10]      ___sys_sendmsg+0xee/0x170
[ 2591.202147][   T10]      __sys_sendmsg+0xcd/0x170
[ 2591.202147][   T10]      do_syscall_64+0xc6/0x1e0
[ 2591.202147][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2591.202147][   T10] 
[ 2591.203744][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2591.203744][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2591.203744][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2591.203744][   T10]      ipv6_find_idev+0x102/0x170
[ 2591.203744][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2591.203744][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2591.203744][   T10]      netlink_rcv_skb+0x130/0x360
[ 2591.203744][   T10]      netlink_unicast+0x449/0x710
[ 2591.203744][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2591.203744][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2591.203744][   T10]      ___sys_sendmsg+0xee/0x170
[ 2591.203744][   T10]      __sys_sendmsg+0xcd/0x170
[ 2591.203744][   T10]      do_syscall_64+0xc6/0x1e0
[ 2591.203744][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2591.203744][   T10] 
[ 2591.205508][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2591.205779][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2591.205779][   T10]      dst_init+0x84/0x4a0
[ 2591.205779][   T10]      dst_alloc+0x97/0x150
[ 2591.205779][   T10]      ip6_dst_alloc+0x23/0x90
[ 2591.205779][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2591.205779][   T10]      ip6_pol_route+0x56f/0x840
[ 2591.205779][   T10]      fib6_rule_lookup+0x456/0x630
[ 2591.205779][   T10]      ip6_route_input+0x59c/0xa50
[ 2591.205779][   T10]      ipv6_rcv+0x397/0x810
[ 2591.205779][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2591.205779][   T10]      process_backlog+0x101/0x620
[ 2591.205779][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2591.205779][   T10]      net_rx_action+0x495/0xbe0
[ 2591.205779][   T10]      __do_softirq+0x1b5/0x7f6
[ 2591.205779][   T10] 
[ 2591.208017][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2591.208017][   T10]      netdev_get_by_index+0x5e/0x80
[ 2591.208017][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2591.208017][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2591.208017][   T10]      ip6_route_add+0x1c/0x140
[ 2591.208017][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2591.208017][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2591.208017][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2591.208017][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2591.208017][   T10]      netlink_rcv_skb+0x130/0x360
[ 2591.208017][   T10]      netlink_unicast+0x449/0x710
[ 2591.208017][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2591.208017][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2591.208017][   T10]      ___sys_sendmsg+0xee/0x170
[ 2591.208017][   T10]      __sys_sendmsg+0xcd/0x170
[ 2591.208017][   T10]      do_syscall_64+0xc6/0x1e0
[ 2591.208017][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2591.208017][   T10] 
[ 2591.210079][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2591.210079][   T10]      netdev_get_by_index+0x5e/0x80
[ 2591.210079][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2591.210079][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2591.210079][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2591.210079][   T10]      ipv6_add_addr+0x411/0x2000
[ 2591.210079][   T10]      inet6_addr_add+0x30e/0xa40
[ 2591.210079][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2591.210079][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2591.210079][   T10]      netlink_rcv_skb+0x130/0x360
[ 2591.210079][   T10]      netlink_unicast+0x449/0x710
[ 2591.210079][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2591.210079][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2591.210079][   T10]      ___sys_sendmsg+0xee/0x170
[ 2591.210079][   T10]      __sys_sendmsg+0xcd/0x170
[ 2591.210079][   T10]      do_syscall_64+0xc6/0x1e0
[ 2591.210079][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2591.210079][   T10] 
[ 2591.212151][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2591.212151][   T10]      netdev_get_by_index+0x5e/0x80
[ 2591.212151][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2591.212151][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2591.212151][   T10]      ip6_route_add+0x1c/0x140
[ 2591.212151][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2591.212151][   T10]      addrconf_add_dev+0xe2/0x170
[ 2591.212151][   T10]      inet6_addr_add+0x12f/0xa40
[ 2591.212151][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2591.212151][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2591.212151][   T10]      netlink_rcv_skb+0x130/0x360
[ 2591.212151][   T10]      netlink_unicast+0x449/0x710
[ 2591.212151][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2591.212151][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2591.212151][   T10]      ___sys_sendmsg+0xee/0x170
[ 2591.212151][   T10]      __sys_sendmsg+0xcd/0x170
[ 2591.212151][   T10]      do_syscall_64+0xc6/0x1e0
[ 2591.212151][   T10] 
[ 2591.214195][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2591.214195][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2591.214195][   T10]      ipv6_find_idev+0x102/0x170
[ 2591.214195][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2591.214195][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2591.214195][   T10]      netlink_rcv_skb+0x130/0x360
[ 2591.214195][   T10]      netlink_unicast+0x449/0x710
[ 2591.214195][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2591.214195][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2591.214195][   T10]      ___sys_sendmsg+0xee/0x170
[ 2591.214195][   T10]      __sys_sendmsg+0xcd/0x170
[ 2591.214195][   T10]      do_syscall_64+0xc6/0x1e0
[ 2591.214195][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2591.214195][   T10] 
[ 2591.215789][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2591.215789][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2591.215789][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2591.215789][   T10]      ipv6_find_idev+0x102/0x170
[ 2591.215789][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2591.215789][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2591.215789][   T10]      netlink_rcv_skb+0x130/0x360
[ 2591.215789][   T10]      netlink_unicast+0x449/0x710
[ 2591.215789][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2591.215789][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2591.215789][   T10]      ___sys_sendmsg+0xee/0x170
[ 2591.215789][   T10]      __sys_sendmsg+0xcd/0x170
[ 2591.215789][   T10]      do_syscall_64+0xc6/0x1e0
[ 2591.215789][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2591.215789][   T10] 
[ 2601.457779][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2601.458202][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2601.458202][   T10]      dst_init+0x84/0x4a0
[ 2601.458202][   T10]      dst_alloc+0x97/0x150
[ 2601.458202][   T10]      ip6_dst_alloc+0x23/0x90
[ 2601.458202][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2601.458202][   T10]      ip6_pol_route+0x56f/0x840
[ 2601.458202][   T10]      fib6_rule_lookup+0x456/0x630
[ 2601.458202][   T10]      ip6_route_input+0x59c/0xa50
[ 2601.458202][   T10]      ipv6_rcv+0x397/0x810
[ 2601.458202][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2601.458202][   T10]      process_backlog+0x101/0x620
[ 2601.458202][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2601.458202][   T10]      net_rx_action+0x495/0xbe0
[ 2601.458202][   T10]      __do_softirq+0x1b5/0x7f6
[ 2601.458202][   T10] 
[ 2601.459938][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2601.459938][   T10]      netdev_get_by_index+0x5e/0x80
[ 2601.459938][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2601.459938][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2601.459938][   T10]      ip6_route_add+0x1c/0x140
[ 2601.459938][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2601.459938][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2601.459938][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2601.459938][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2601.459938][   T10]      netlink_rcv_skb+0x130/0x360
[ 2601.459938][   T10]      netlink_unicast+0x449/0x710
[ 2601.459938][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2601.459938][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2601.459938][   T10]      ___sys_sendmsg+0xee/0x170
[ 2601.459938][   T10]      __sys_sendmsg+0xcd/0x170
[ 2601.459938][   T10]      do_syscall_64+0xc6/0x1e0
[ 2601.459938][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2601.459938][   T10] 
[ 2601.462042][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2601.462042][   T10]      netdev_get_by_index+0x5e/0x80
[ 2601.462042][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2601.462042][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2601.462042][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2601.462042][   T10]      ipv6_add_addr+0x411/0x2000
[ 2601.462042][   T10]      inet6_addr_add+0x30e/0xa40
[ 2601.462042][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2601.462042][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2601.462042][   T10]      netlink_rcv_skb+0x130/0x360
[ 2601.462042][   T10]      netlink_unicast+0x449/0x710
[ 2601.462042][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2601.462042][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2601.462042][   T10]      ___sys_sendmsg+0xee/0x170
[ 2601.462042][   T10]      __sys_sendmsg+0xcd/0x170
[ 2601.462042][   T10]      do_syscall_64+0xc6/0x1e0
[ 2601.462042][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2601.462042][   T10] 
[ 2601.464108][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2601.464108][   T10]      netdev_get_by_index+0x5e/0x80
[ 2601.464108][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2601.464108][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2601.464108][   T10]      ip6_route_add+0x1c/0x140
[ 2601.464108][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2601.464108][   T10]      addrconf_add_dev+0xe2/0x170
[ 2601.464108][   T10]      inet6_addr_add+0x12f/0xa40
[ 2601.464108][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2601.464108][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2601.464108][   T10]      netlink_rcv_skb+0x130/0x360
[ 2601.464108][   T10]      netlink_unicast+0x449/0x710
[ 2601.464108][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2601.464108][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2601.464108][   T10]      ___sys_sendmsg+0xee/0x170
[ 2601.464108][   T10]      __sys_sendmsg+0xcd/0x170
[ 2601.464108][   T10]      do_syscall_64+0xc6/0x1e0
[ 2601.464108][   T10] 
[ 2601.466141][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2601.466141][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2601.466141][   T10]      ipv6_find_idev+0x102/0x170
[ 2601.466141][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2601.466141][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2601.466141][   T10]      netlink_rcv_skb+0x130/0x360
[ 2601.466141][   T10]      netlink_unicast+0x449/0x710
[ 2601.466141][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2601.466141][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2601.466141][   T10]      ___sys_sendmsg+0xee/0x170
[ 2601.466141][   T10]      __sys_sendmsg+0xcd/0x170
[ 2601.466141][   T10]      do_syscall_64+0xc6/0x1e0
[ 2601.466141][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2601.466141][   T10] 
[ 2601.468125][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2601.468125][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2601.468125][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2601.468125][   T10]      ipv6_find_idev+0x102/0x170
[ 2601.468125][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2601.468125][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2601.468125][   T10]      netlink_rcv_skb+0x130/0x360
[ 2601.468125][   T10]      netlink_unicast+0x449/0x710
[ 2601.468125][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2601.468125][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2601.468125][   T10]      ___sys_sendmsg+0xee/0x170
[ 2601.468125][   T10]      __sys_sendmsg+0xcd/0x170
[ 2601.468125][   T10]      do_syscall_64+0xc6/0x1e0
[ 2601.468125][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2601.468125][   T10] 
[ 2601.469890][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2601.470155][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2601.470155][   T10]      dst_init+0x84/0x4a0
[ 2601.470155][   T10]      dst_alloc+0x97/0x150
[ 2601.470155][   T10]      ip6_dst_alloc+0x23/0x90
[ 2601.470155][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2601.470155][   T10]      ip6_pol_route+0x56f/0x840
[ 2601.470155][   T10]      fib6_rule_lookup+0x456/0x630
[ 2601.470155][   T10]      ip6_route_input+0x59c/0xa50
[ 2601.470155][   T10]      ipv6_rcv+0x397/0x810
[ 2601.470155][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2601.470155][   T10]      process_backlog+0x101/0x620
[ 2601.470155][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2601.470155][   T10]      net_rx_action+0x495/0xbe0
[ 2601.470155][   T10]      __do_softirq+0x1b5/0x7f6
[ 2601.470155][   T10] 
[ 2601.471849][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2601.471849][   T10]      netdev_get_by_index+0x5e/0x80
[ 2601.471849][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2601.471849][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2601.471849][   T10]      ip6_route_add+0x1c/0x140
[ 2601.471849][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2601.471849][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2601.471849][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2601.471849][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2601.471849][   T10]      netlink_rcv_skb+0x130/0x360
[ 2601.471849][   T10]      netlink_unicast+0x449/0x710
[ 2601.471849][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2601.471849][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2601.471849][   T10]      ___sys_sendmsg+0xee/0x170
[ 2601.471849][   T10]      __sys_sendmsg+0xcd/0x170
[ 2601.471849][   T10]      do_syscall_64+0xc6/0x1e0
[ 2601.471849][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2601.471849][   T10] 
[ 2601.473919][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2601.473919][   T10]      netdev_get_by_index+0x5e/0x80
[ 2601.473919][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2601.473919][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2601.473919][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2601.473919][   T10]      ipv6_add_addr+0x411/0x2000
[ 2601.473919][   T10]      inet6_addr_add+0x30e/0xa40
[ 2601.473919][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2601.473919][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2601.473919][   T10]      netlink_rcv_skb+0x130/0x360
[ 2601.473919][   T10]      netlink_unicast+0x449/0x710
[ 2601.473919][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2601.473919][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2601.473919][   T10]      ___sys_sendmsg+0xee/0x170
[ 2601.473919][   T10]      __sys_sendmsg+0xcd/0x170
[ 2601.473919][   T10]      do_syscall_64+0xc6/0x1e0
[ 2601.473919][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2601.473919][   T10] 
[ 2601.475981][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2601.475981][   T10]      netdev_get_by_index+0x5e/0x80
[ 2601.475981][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2601.475981][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2601.475981][   T10]      ip6_route_add+0x1c/0x140
[ 2601.475981][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2601.475981][   T10]      addrconf_add_dev+0xe2/0x170
[ 2601.475981][   T10]      inet6_addr_add+0x12f/0xa40
[ 2601.475981][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2601.475981][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2601.475981][   T10]      netlink_rcv_skb+0x130/0x360
[ 2601.475981][   T10]      netlink_unicast+0x449/0x710
[ 2601.475981][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2601.475981][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2601.475981][   T10]      ___sys_sendmsg+0xee/0x170
[ 2601.475981][   T10]      __sys_sendmsg+0xcd/0x170
[ 2601.475981][   T10]      do_syscall_64+0xc6/0x1e0
[ 2601.475981][   T10] 
[ 2601.478025][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2601.478025][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2601.478025][   T10]      ipv6_find_idev+0x102/0x170
[ 2601.478025][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2601.478025][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2601.478025][   T10]      netlink_rcv_skb+0x130/0x360
[ 2601.478025][   T10]      netlink_unicast+0x449/0x710
[ 2601.478025][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2601.478025][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2601.478025][   T10]      ___sys_sendmsg+0xee/0x170
[ 2601.478025][   T10]      __sys_sendmsg+0xcd/0x170
[ 2601.478025][   T10]      do_syscall_64+0xc6/0x1e0
[ 2601.478025][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2601.478025][   T10] 
[ 2601.479621][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2601.479621][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2601.479621][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2601.479621][   T10]      ipv6_find_idev+0x102/0x170
[ 2601.479621][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2601.479621][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2601.479621][   T10]      netlink_rcv_skb+0x130/0x360
[ 2601.479621][   T10]      netlink_unicast+0x449/0x710
[ 2601.479621][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2601.479621][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2601.479621][   T10]      ___sys_sendmsg+0xee/0x170
[ 2601.479621][   T10]      __sys_sendmsg+0xcd/0x170
[ 2601.479621][   T10]      do_syscall_64+0xc6/0x1e0
[ 2601.479621][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2601.479621][   T10] 
[ 2611.721782][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2611.722264][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2611.722264][   T10]      dst_init+0x84/0x4a0
[ 2611.722264][   T10]      dst_alloc+0x97/0x150
[ 2611.722264][   T10]      ip6_dst_alloc+0x23/0x90
[ 2611.722264][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2611.722264][   T10]      ip6_pol_route+0x56f/0x840
[ 2611.722264][   T10]      fib6_rule_lookup+0x456/0x630
[ 2611.722264][   T10]      ip6_route_input+0x59c/0xa50
[ 2611.722264][   T10]      ipv6_rcv+0x397/0x810
[ 2611.722264][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2611.722264][   T10]      process_backlog+0x101/0x620
[ 2611.722264][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2611.722264][   T10]      net_rx_action+0x495/0xbe0
[ 2611.722264][   T10]      __do_softirq+0x1b5/0x7f6
[ 2611.722264][   T10] 
[ 2611.723986][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2611.723986][   T10]      netdev_get_by_index+0x5e/0x80
[ 2611.723986][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2611.723986][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2611.723986][   T10]      ip6_route_add+0x1c/0x140
[ 2611.723986][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2611.723986][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2611.723986][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2611.723986][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2611.723986][   T10]      netlink_rcv_skb+0x130/0x360
[ 2611.723986][   T10]      netlink_unicast+0x449/0x710
[ 2611.723986][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2611.723986][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2611.723986][   T10]      ___sys_sendmsg+0xee/0x170
[ 2611.723986][   T10]      __sys_sendmsg+0xcd/0x170
[ 2611.723986][   T10]      do_syscall_64+0xc6/0x1e0
[ 2611.723986][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2611.723986][   T10] 
[ 2611.726046][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2611.726046][   T10]      netdev_get_by_index+0x5e/0x80
[ 2611.726046][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2611.726046][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2611.726046][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2611.726046][   T10]      ipv6_add_addr+0x411/0x2000
[ 2611.726046][   T10]      inet6_addr_add+0x30e/0xa40
[ 2611.726046][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2611.726046][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2611.726046][   T10]      netlink_rcv_skb+0x130/0x360
[ 2611.726046][   T10]      netlink_unicast+0x449/0x710
[ 2611.726046][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2611.726046][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2611.726046][   T10]      ___sys_sendmsg+0xee/0x170
[ 2611.726046][   T10]      __sys_sendmsg+0xcd/0x170
[ 2611.726046][   T10]      do_syscall_64+0xc6/0x1e0
[ 2611.726046][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2611.726046][   T10] 
[ 2611.728100][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2611.728100][   T10]      netdev_get_by_index+0x5e/0x80
[ 2611.728100][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2611.728100][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2611.728100][   T10]      ip6_route_add+0x1c/0x140
[ 2611.728100][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2611.728100][   T10]      addrconf_add_dev+0xe2/0x170
[ 2611.728100][   T10]      inet6_addr_add+0x12f/0xa40
[ 2611.728100][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2611.728100][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2611.728100][   T10]      netlink_rcv_skb+0x130/0x360
[ 2611.728100][   T10]      netlink_unicast+0x449/0x710
[ 2611.728100][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2611.728100][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2611.728100][   T10]      ___sys_sendmsg+0xee/0x170
[ 2611.728100][   T10]      __sys_sendmsg+0xcd/0x170
[ 2611.728100][   T10]      do_syscall_64+0xc6/0x1e0
[ 2611.728100][   T10] 
[ 2611.730144][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2611.730144][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2611.730144][   T10]      ipv6_find_idev+0x102/0x170
[ 2611.730144][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2611.730144][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2611.730144][   T10]      netlink_rcv_skb+0x130/0x360
[ 2611.730144][   T10]      netlink_unicast+0x449/0x710
[ 2611.730144][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2611.730144][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2611.730144][   T10]      ___sys_sendmsg+0xee/0x170
[ 2611.730144][   T10]      __sys_sendmsg+0xcd/0x170
[ 2611.730144][   T10]      do_syscall_64+0xc6/0x1e0
[ 2611.730144][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2611.730144][   T10] 
[ 2611.731741][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2611.731741][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2611.731741][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2611.731741][   T10]      ipv6_find_idev+0x102/0x170
[ 2611.731741][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2611.731741][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2611.731741][   T10]      netlink_rcv_skb+0x130/0x360
[ 2611.731741][   T10]      netlink_unicast+0x449/0x710
[ 2611.731741][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2611.731741][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2611.731741][   T10]      ___sys_sendmsg+0xee/0x170
[ 2611.731741][   T10]      __sys_sendmsg+0xcd/0x170
[ 2611.731741][   T10]      do_syscall_64+0xc6/0x1e0
[ 2611.731741][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2611.731741][   T10] 
[ 2611.733479][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2611.733742][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2611.733742][   T10]      dst_init+0x84/0x4a0
[ 2611.733742][   T10]      dst_alloc+0x97/0x150
[ 2611.733742][   T10]      ip6_dst_alloc+0x23/0x90
[ 2611.733742][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2611.733742][   T10]      ip6_pol_route+0x56f/0x840
[ 2611.733742][   T10]      fib6_rule_lookup+0x456/0x630
[ 2611.733742][   T10]      ip6_route_input+0x59c/0xa50
[ 2611.733742][   T10]      ipv6_rcv+0x397/0x810
[ 2611.733742][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2611.733742][   T10]      process_backlog+0x101/0x620
[ 2611.733742][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2611.733742][   T10]      net_rx_action+0x495/0xbe0
[ 2611.733742][   T10]      __do_softirq+0x1b5/0x7f6
[ 2611.733742][   T10] 
[ 2611.735428][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2611.735428][   T10]      netdev_get_by_index+0x5e/0x80
[ 2611.735428][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2611.735428][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2611.735428][   T10]      ip6_route_add+0x1c/0x140
[ 2611.735428][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2611.735428][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2611.735428][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2611.735428][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2611.735428][   T10]      netlink_rcv_skb+0x130/0x360
[ 2611.735428][   T10]      netlink_unicast+0x449/0x710
[ 2611.735428][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2611.735428][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2611.735428][   T10]      ___sys_sendmsg+0xee/0x170
[ 2611.735428][   T10]      __sys_sendmsg+0xcd/0x170
[ 2611.735428][   T10]      do_syscall_64+0xc6/0x1e0
[ 2611.735428][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2611.735428][   T10] 
[ 2611.737618][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2611.737618][   T10]      netdev_get_by_index+0x5e/0x80
[ 2611.737618][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2611.737618][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2611.737618][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2611.737618][   T10]      ipv6_add_addr+0x411/0x2000
[ 2611.737618][   T10]      inet6_addr_add+0x30e/0xa40
[ 2611.737618][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2611.737618][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2611.737618][   T10]      netlink_rcv_skb+0x130/0x360
[ 2611.737618][   T10]      netlink_unicast+0x449/0x710
[ 2611.737618][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2611.737618][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2611.737618][   T10]      ___sys_sendmsg+0xee/0x170
[ 2611.737618][   T10]      __sys_sendmsg+0xcd/0x170
[ 2611.737618][   T10]      do_syscall_64+0xc6/0x1e0
[ 2611.737618][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2611.737618][   T10] 
[ 2611.739671][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2611.739671][   T10]      netdev_get_by_index+0x5e/0x80
[ 2611.739671][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2611.739671][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2611.739671][   T10]      ip6_route_add+0x1c/0x140
[ 2611.739671][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2611.739671][   T10]      addrconf_add_dev+0xe2/0x170
[ 2611.739671][   T10]      inet6_addr_add+0x12f/0xa40
[ 2611.739671][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2611.739671][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2611.739671][   T10]      netlink_rcv_skb+0x130/0x360
[ 2611.739671][   T10]      netlink_unicast+0x449/0x710
[ 2611.739671][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2611.739671][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2611.739671][   T10]      ___sys_sendmsg+0xee/0x170
[ 2611.739671][   T10]      __sys_sendmsg+0xcd/0x170
[ 2611.739671][   T10]      do_syscall_64+0xc6/0x1e0
[ 2611.739671][   T10] 
[ 2611.741686][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2611.741686][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2611.741686][   T10]      ipv6_find_idev+0x102/0x170
[ 2611.741686][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2611.741686][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2611.741686][   T10]      netlink_rcv_skb+0x130/0x360
[ 2611.741686][   T10]      netlink_unicast+0x449/0x710
[ 2611.741686][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2611.741686][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2611.741686][   T10]      ___sys_sendmsg+0xee/0x170
[ 2611.741686][   T10]      __sys_sendmsg+0xcd/0x170
[ 2611.741686][   T10]      do_syscall_64+0xc6/0x1e0
[ 2611.741686][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2611.741686][   T10] 
[ 2611.743266][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2611.743266][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2611.743266][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2611.743266][   T10]      ipv6_find_idev+0x102/0x170
[ 2611.743266][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2611.743266][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2611.743266][   T10]      netlink_rcv_skb+0x130/0x360
[ 2611.743266][   T10]      netlink_unicast+0x449/0x710
[ 2611.743266][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2611.743266][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2611.743266][   T10]      ___sys_sendmsg+0xee/0x170
[ 2611.743266][   T10]      __sys_sendmsg+0xcd/0x170
[ 2611.743266][   T10]      do_syscall_64+0xc6/0x1e0
[ 2611.743266][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2611.743266][   T10] 
[ 2621.985793][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2621.986264][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2621.986264][   T10]      dst_init+0x84/0x4a0
[ 2621.986264][   T10]      dst_alloc+0x97/0x150
[ 2621.986264][   T10]      ip6_dst_alloc+0x23/0x90
[ 2621.986264][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2621.986264][   T10]      ip6_pol_route+0x56f/0x840
[ 2621.986264][   T10]      fib6_rule_lookup+0x456/0x630
[ 2621.986264][   T10]      ip6_route_input+0x59c/0xa50
[ 2621.986264][   T10]      ipv6_rcv+0x397/0x810
[ 2621.986264][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2621.986264][   T10]      process_backlog+0x101/0x620
[ 2621.986264][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2621.986264][   T10]      net_rx_action+0x495/0xbe0
[ 2621.986264][   T10]      __do_softirq+0x1b5/0x7f6
[ 2621.986264][   T10] 
[ 2621.987991][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2621.987991][   T10]      netdev_get_by_index+0x5e/0x80
[ 2621.987991][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2621.987991][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2621.987991][   T10]      ip6_route_add+0x1c/0x140
[ 2621.987991][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2621.987991][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2621.987991][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2621.987991][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2621.987991][   T10]      netlink_rcv_skb+0x130/0x360
[ 2621.987991][   T10]      netlink_unicast+0x449/0x710
[ 2621.987991][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2621.987991][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2621.987991][   T10]      ___sys_sendmsg+0xee/0x170
[ 2621.987991][   T10]      __sys_sendmsg+0xcd/0x170
[ 2621.987991][   T10]      do_syscall_64+0xc6/0x1e0
[ 2621.987991][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2621.987991][   T10] 
[ 2621.990047][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2621.990047][   T10]      netdev_get_by_index+0x5e/0x80
[ 2621.990047][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2621.990047][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2621.990047][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2621.990047][   T10]      ipv6_add_addr+0x411/0x2000
[ 2621.990047][   T10]      inet6_addr_add+0x30e/0xa40
[ 2621.990047][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2621.990047][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2621.990047][   T10]      netlink_rcv_skb+0x130/0x360
[ 2621.990047][   T10]      netlink_unicast+0x449/0x710
[ 2621.990047][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2621.990047][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2621.990047][   T10]      ___sys_sendmsg+0xee/0x170
[ 2621.990047][   T10]      __sys_sendmsg+0xcd/0x170
[ 2621.990047][   T10]      do_syscall_64+0xc6/0x1e0
[ 2621.990047][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2621.990047][   T10] 
[ 2621.992115][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2621.992115][   T10]      netdev_get_by_index+0x5e/0x80
[ 2621.992115][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2621.992115][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2621.992115][   T10]      ip6_route_add+0x1c/0x140
[ 2621.992115][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2621.992115][   T10]      addrconf_add_dev+0xe2/0x170
[ 2621.992115][   T10]      inet6_addr_add+0x12f/0xa40
[ 2621.992115][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2621.992115][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2621.992115][   T10]      netlink_rcv_skb+0x130/0x360
[ 2621.992115][   T10]      netlink_unicast+0x449/0x710
[ 2621.992115][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2621.992115][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2621.992115][   T10]      ___sys_sendmsg+0xee/0x170
[ 2621.992115][   T10]      __sys_sendmsg+0xcd/0x170
[ 2621.992115][   T10]      do_syscall_64+0xc6/0x1e0
[ 2621.992115][   T10] 
[ 2621.994132][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2621.994132][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2621.994132][   T10]      ipv6_find_idev+0x102/0x170
[ 2621.994132][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2621.994132][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2621.994132][   T10]      netlink_rcv_skb+0x130/0x360
[ 2621.994132][   T10]      netlink_unicast+0x449/0x710
[ 2621.994132][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2621.994132][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2621.994132][   T10]      ___sys_sendmsg+0xee/0x170
[ 2621.994132][   T10]      __sys_sendmsg+0xcd/0x170
[ 2621.994132][   T10]      do_syscall_64+0xc6/0x1e0
[ 2621.994132][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2621.994132][   T10] 
[ 2621.995709][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2621.995709][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2621.995709][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2621.995709][   T10]      ipv6_find_idev+0x102/0x170
[ 2621.995709][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2621.995709][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2621.995709][   T10]      netlink_rcv_skb+0x130/0x360
[ 2621.995709][   T10]      netlink_unicast+0x449/0x710
[ 2621.995709][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2621.995709][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2621.995709][   T10]      ___sys_sendmsg+0xee/0x170
[ 2621.995709][   T10]      __sys_sendmsg+0xcd/0x170
[ 2621.995709][   T10]      do_syscall_64+0xc6/0x1e0
[ 2621.995709][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2621.995709][   T10] 
[ 2621.997456][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2621.997709][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2621.997709][   T10]      dst_init+0x84/0x4a0
[ 2621.997709][   T10]      dst_alloc+0x97/0x150
[ 2621.997709][   T10]      ip6_dst_alloc+0x23/0x90
[ 2621.997709][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2621.997709][   T10]      ip6_pol_route+0x56f/0x840
[ 2621.997709][   T10]      fib6_rule_lookup+0x456/0x630
[ 2621.997709][   T10]      ip6_route_input+0x59c/0xa50
[ 2621.997709][   T10]      ipv6_rcv+0x397/0x810
[ 2621.997709][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2621.997709][   T10]      process_backlog+0x101/0x620
[ 2621.997709][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2621.997709][   T10]      net_rx_action+0x495/0xbe0
[ 2621.997709][   T10]      __do_softirq+0x1b5/0x7f6
[ 2621.997709][   T10] 
[ 2621.999391][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2621.999391][   T10]      netdev_get_by_index+0x5e/0x80
[ 2621.999391][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2621.999391][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2621.999391][   T10]      ip6_route_add+0x1c/0x140
[ 2621.999391][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2621.999391][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2621.999391][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2621.999391][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2621.999391][   T10]      netlink_rcv_skb+0x130/0x360
[ 2621.999391][   T10]      netlink_unicast+0x449/0x710
[ 2621.999391][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2621.999391][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2621.999391][   T10]      ___sys_sendmsg+0xee/0x170
[ 2621.999391][   T10]      __sys_sendmsg+0xcd/0x170
[ 2621.999391][   T10]      do_syscall_64+0xc6/0x1e0
[ 2621.999391][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2621.999391][   T10] 
[ 2622.001451][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2622.001451][   T10]      netdev_get_by_index+0x5e/0x80
[ 2622.001451][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2622.001451][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2622.001451][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2622.001451][   T10]      ipv6_add_addr+0x411/0x2000
[ 2622.001451][   T10]      inet6_addr_add+0x30e/0xa40
[ 2622.001451][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2622.001451][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2622.001451][   T10]      netlink_rcv_skb+0x130/0x360
[ 2622.001451][   T10]      netlink_unicast+0x449/0x710
[ 2622.001451][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2622.001451][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2622.001451][   T10]      ___sys_sendmsg+0xee/0x170
[ 2622.001451][   T10]      __sys_sendmsg+0xcd/0x170
[ 2622.001451][   T10]      do_syscall_64+0xc6/0x1e0
[ 2622.001451][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2622.001451][   T10] 
[ 2622.003501][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2622.003501][   T10]      netdev_get_by_index+0x5e/0x80
[ 2622.003501][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2622.003501][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2622.003501][   T10]      ip6_route_add+0x1c/0x140
[ 2622.003501][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2622.003501][   T10]      addrconf_add_dev+0xe2/0x170
[ 2622.003501][   T10]      inet6_addr_add+0x12f/0xa40
[ 2622.003501][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2622.003501][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2622.003501][   T10]      netlink_rcv_skb+0x130/0x360
[ 2622.003501][   T10]      netlink_unicast+0x449/0x710
[ 2622.003501][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2622.003501][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2622.003501][   T10]      ___sys_sendmsg+0xee/0x170
[ 2622.003501][   T10]      __sys_sendmsg+0xcd/0x170
[ 2622.003501][   T10]      do_syscall_64+0xc6/0x1e0
[ 2622.003501][   T10] 
[ 2622.005512][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2622.005512][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2622.005512][   T10]      ipv6_find_idev+0x102/0x170
[ 2622.005512][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2622.005512][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2622.005512][   T10]      netlink_rcv_skb+0x130/0x360
[ 2622.005512][   T10]      netlink_unicast+0x449/0x710
[ 2622.005512][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2622.005512][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2622.005512][   T10]      ___sys_sendmsg+0xee/0x170
[ 2622.005512][   T10]      __sys_sendmsg+0xcd/0x170
[ 2622.005512][   T10]      do_syscall_64+0xc6/0x1e0
[ 2622.005512][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2622.005512][   T10] 
[ 2622.007093][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2622.007093][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2622.007093][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2622.007093][   T10]      ipv6_find_idev+0x102/0x170
[ 2622.007093][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2622.007093][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2622.007093][   T10]      netlink_rcv_skb+0x130/0x360
[ 2622.007093][   T10]      netlink_unicast+0x449/0x710
[ 2622.007093][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2622.007093][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2622.007093][   T10]      ___sys_sendmsg+0xee/0x170
[ 2622.007093][   T10]      __sys_sendmsg+0xcd/0x170
[ 2622.007093][   T10]      do_syscall_64+0xc6/0x1e0
[ 2622.007093][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2622.007093][   T10] 
[ 2632.153799][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2632.154266][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2632.154266][   T10]      dst_init+0x84/0x4a0
[ 2632.154266][   T10]      dst_alloc+0x97/0x150
[ 2632.154266][   T10]      ip6_dst_alloc+0x23/0x90
[ 2632.154266][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2632.154266][   T10]      ip6_pol_route+0x56f/0x840
[ 2632.154266][   T10]      fib6_rule_lookup+0x456/0x630
[ 2632.154266][   T10]      ip6_route_input+0x59c/0xa50
[ 2632.154266][   T10]      ipv6_rcv+0x397/0x810
[ 2632.154266][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2632.154266][   T10]      process_backlog+0x101/0x620
[ 2632.154266][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2632.154266][   T10]      net_rx_action+0x495/0xbe0
[ 2632.154266][   T10]      __do_softirq+0x1b5/0x7f6
[ 2632.154266][   T10] 
[ 2632.155991][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2632.155991][   T10]      netdev_get_by_index+0x5e/0x80
[ 2632.155991][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2632.155991][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2632.155991][   T10]      ip6_route_add+0x1c/0x140
[ 2632.155991][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2632.155991][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2632.155991][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2632.155991][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2632.155991][   T10]      netlink_rcv_skb+0x130/0x360
[ 2632.155991][   T10]      netlink_unicast+0x449/0x710
[ 2632.155991][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2632.155991][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2632.155991][   T10]      ___sys_sendmsg+0xee/0x170
[ 2632.155991][   T10]      __sys_sendmsg+0xcd/0x170
[ 2632.155991][   T10]      do_syscall_64+0xc6/0x1e0
[ 2632.155991][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2632.155991][   T10] 
[ 2632.158050][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2632.158050][   T10]      netdev_get_by_index+0x5e/0x80
[ 2632.158050][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2632.158050][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2632.158050][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2632.158050][   T10]      ipv6_add_addr+0x411/0x2000
[ 2632.158050][   T10]      inet6_addr_add+0x30e/0xa40
[ 2632.158050][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2632.158050][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2632.158050][   T10]      netlink_rcv_skb+0x130/0x360
[ 2632.158050][   T10]      netlink_unicast+0x449/0x710
[ 2632.158050][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2632.158050][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2632.158050][   T10]      ___sys_sendmsg+0xee/0x170
[ 2632.158050][   T10]      __sys_sendmsg+0xcd/0x170
[ 2632.158050][   T10]      do_syscall_64+0xc6/0x1e0
[ 2632.158050][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2632.158050][   T10] 
[ 2632.160116][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2632.160116][   T10]      netdev_get_by_index+0x5e/0x80
[ 2632.160116][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2632.160116][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2632.160116][   T10]      ip6_route_add+0x1c/0x140
[ 2632.160116][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2632.160116][   T10]      addrconf_add_dev+0xe2/0x170
[ 2632.160116][   T10]      inet6_addr_add+0x12f/0xa40
[ 2632.160116][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2632.160116][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2632.160116][   T10]      netlink_rcv_skb+0x130/0x360
[ 2632.160116][   T10]      netlink_unicast+0x449/0x710
[ 2632.160116][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2632.160116][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2632.160116][   T10]      ___sys_sendmsg+0xee/0x170
[ 2632.160116][   T10]      __sys_sendmsg+0xcd/0x170
[ 2632.160116][   T10]      do_syscall_64+0xc6/0x1e0
[ 2632.160116][   T10] 
[ 2632.162141][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2632.162141][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2632.162141][   T10]      ipv6_find_idev+0x102/0x170
[ 2632.162141][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2632.162141][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2632.162141][   T10]      netlink_rcv_skb+0x130/0x360
[ 2632.162141][   T10]      netlink_unicast+0x449/0x710
[ 2632.162141][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2632.162141][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2632.162141][   T10]      ___sys_sendmsg+0xee/0x170
[ 2632.162141][   T10]      __sys_sendmsg+0xcd/0x170
[ 2632.162141][   T10]      do_syscall_64+0xc6/0x1e0
[ 2632.162141][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2632.162141][   T10] 
[ 2632.163719][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2632.163719][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2632.163719][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2632.163719][   T10]      ipv6_find_idev+0x102/0x170
[ 2632.163719][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2632.163719][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2632.163719][   T10]      netlink_rcv_skb+0x130/0x360
[ 2632.163719][   T10]      netlink_unicast+0x449/0x710
[ 2632.163719][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2632.163719][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2632.163719][   T10]      ___sys_sendmsg+0xee/0x170
[ 2632.163719][   T10]      __sys_sendmsg+0xcd/0x170
[ 2632.163719][   T10]      do_syscall_64+0xc6/0x1e0
[ 2632.163719][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2632.163719][   T10] 
[ 2632.165456][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2632.165717][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2632.165717][   T10]      dst_init+0x84/0x4a0
[ 2632.165717][   T10]      dst_alloc+0x97/0x150
[ 2632.165717][   T10]      ip6_dst_alloc+0x23/0x90
[ 2632.165717][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2632.165717][   T10]      ip6_pol_route+0x56f/0x840
[ 2632.165717][   T10]      fib6_rule_lookup+0x456/0x630
[ 2632.165717][   T10]      ip6_route_input+0x59c/0xa50
[ 2632.165717][   T10]      ipv6_rcv+0x397/0x810
[ 2632.165717][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2632.165717][   T10]      process_backlog+0x101/0x620
[ 2632.165717][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2632.165717][   T10]      net_rx_action+0x495/0xbe0
[ 2632.165717][   T10]      __do_softirq+0x1b5/0x7f6
[ 2632.165717][   T10] 
[ 2632.167409][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2632.167409][   T10]      netdev_get_by_index+0x5e/0x80
[ 2632.167409][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2632.167409][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2632.167409][   T10]      ip6_route_add+0x1c/0x140
[ 2632.167409][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2632.167409][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2632.167409][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2632.167409][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2632.167409][   T10]      netlink_rcv_skb+0x130/0x360
[ 2632.167409][   T10]      netlink_unicast+0x449/0x710
[ 2632.167409][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2632.167409][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2632.167409][   T10]      ___sys_sendmsg+0xee/0x170
[ 2632.167409][   T10]      __sys_sendmsg+0xcd/0x170
[ 2632.167409][   T10]      do_syscall_64+0xc6/0x1e0
[ 2632.167409][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2632.167409][   T10] 
[ 2632.169468][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2632.169468][   T10]      netdev_get_by_index+0x5e/0x80
[ 2632.169468][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2632.169468][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2632.169468][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2632.169468][   T10]      ipv6_add_addr+0x411/0x2000
[ 2632.169468][   T10]      inet6_addr_add+0x30e/0xa40
[ 2632.169468][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2632.169468][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2632.169468][   T10]      netlink_rcv_skb+0x130/0x360
[ 2632.169468][   T10]      netlink_unicast+0x449/0x710
[ 2632.169468][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2632.169468][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2632.169468][   T10]      ___sys_sendmsg+0xee/0x170
[ 2632.169468][   T10]      __sys_sendmsg+0xcd/0x170
[ 2632.169468][   T10]      do_syscall_64+0xc6/0x1e0
[ 2632.169468][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2632.169468][   T10] 
[ 2632.171522][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2632.171522][   T10]      netdev_get_by_index+0x5e/0x80
[ 2632.171522][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2632.171522][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2632.171522][   T10]      ip6_route_add+0x1c/0x140
[ 2632.171522][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2632.171522][   T10]      addrconf_add_dev+0xe2/0x170
[ 2632.171522][   T10]      inet6_addr_add+0x12f/0xa40
[ 2632.171522][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2632.171522][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2632.171522][   T10]      netlink_rcv_skb+0x130/0x360
[ 2632.171522][   T10]      netlink_unicast+0x449/0x710
[ 2632.171522][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2632.171522][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2632.171522][   T10]      ___sys_sendmsg+0xee/0x170
[ 2632.171522][   T10]      __sys_sendmsg+0xcd/0x170
[ 2632.171522][   T10]      do_syscall_64+0xc6/0x1e0
[ 2632.171522][   T10] 
[ 2632.173542][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2632.173542][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2632.173542][   T10]      ipv6_find_idev+0x102/0x170
[ 2632.173542][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2632.173542][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2632.173542][   T10]      netlink_rcv_skb+0x130/0x360
[ 2632.173542][   T10]      netlink_unicast+0x449/0x710
[ 2632.173542][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2632.173542][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2632.173542][   T10]      ___sys_sendmsg+0xee/0x170
[ 2632.173542][   T10]      __sys_sendmsg+0xcd/0x170
[ 2632.173542][   T10]      do_syscall_64+0xc6/0x1e0
[ 2632.173542][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2632.173542][   T10] 
[ 2632.175122][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2632.175122][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2632.175122][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2632.175122][   T10]      ipv6_find_idev+0x102/0x170
[ 2632.175122][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2632.175122][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2632.175122][   T10]      netlink_rcv_skb+0x130/0x360
[ 2632.175122][   T10]      netlink_unicast+0x449/0x710
[ 2632.175122][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2632.175122][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2632.175122][   T10]      ___sys_sendmsg+0xee/0x170
[ 2632.175122][   T10]      __sys_sendmsg+0xcd/0x170
[ 2632.175122][   T10]      do_syscall_64+0xc6/0x1e0
[ 2632.175122][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2632.175122][   T10] 
[ 2642.177718][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2642.178209][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2642.178209][   T10]      dst_init+0x84/0x4a0
[ 2642.178209][   T10]      dst_alloc+0x97/0x150
[ 2642.178209][   T10]      ip6_dst_alloc+0x23/0x90
[ 2642.178209][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2642.178209][   T10]      ip6_pol_route+0x56f/0x840
[ 2642.178209][   T10]      fib6_rule_lookup+0x456/0x630
[ 2642.178209][   T10]      ip6_route_input+0x59c/0xa50
[ 2642.178209][   T10]      ipv6_rcv+0x397/0x810
[ 2642.178209][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2642.178209][   T10]      process_backlog+0x101/0x620
[ 2642.178209][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2642.178209][   T10]      net_rx_action+0x495/0xbe0
[ 2642.178209][   T10]      __do_softirq+0x1b5/0x7f6
[ 2642.178209][   T10] 
[ 2642.179970][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2642.179970][   T10]      netdev_get_by_index+0x5e/0x80
[ 2642.179970][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2642.179970][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2642.179970][   T10]      ip6_route_add+0x1c/0x140
[ 2642.179970][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2642.179970][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2642.179970][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2642.179970][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2642.179970][   T10]      netlink_rcv_skb+0x130/0x360
[ 2642.179970][   T10]      netlink_unicast+0x449/0x710
[ 2642.179970][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2642.179970][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2642.179970][   T10]      ___sys_sendmsg+0xee/0x170
[ 2642.179970][   T10]      __sys_sendmsg+0xcd/0x170
[ 2642.179970][   T10]      do_syscall_64+0xc6/0x1e0
[ 2642.179970][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2642.179970][   T10] 
[ 2642.182039][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2642.182039][   T10]      netdev_get_by_index+0x5e/0x80
[ 2642.182039][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2642.182039][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2642.182039][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2642.182039][   T10]      ipv6_add_addr+0x411/0x2000
[ 2642.182039][   T10]      inet6_addr_add+0x30e/0xa40
[ 2642.182039][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2642.182039][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2642.182039][   T10]      netlink_rcv_skb+0x130/0x360
[ 2642.182039][   T10]      netlink_unicast+0x449/0x710
[ 2642.182039][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2642.182039][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2642.182039][   T10]      ___sys_sendmsg+0xee/0x170
[ 2642.182039][   T10]      __sys_sendmsg+0xcd/0x170
[ 2642.182039][   T10]      do_syscall_64+0xc6/0x1e0
[ 2642.182039][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2642.182039][   T10] 
[ 2642.184104][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2642.184104][   T10]      netdev_get_by_index+0x5e/0x80
[ 2642.184104][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2642.184104][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2642.184104][   T10]      ip6_route_add+0x1c/0x140
[ 2642.184104][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2642.184104][   T10]      addrconf_add_dev+0xe2/0x170
[ 2642.184104][   T10]      inet6_addr_add+0x12f/0xa40
[ 2642.184104][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2642.184104][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2642.184104][   T10]      netlink_rcv_skb+0x130/0x360
[ 2642.184104][   T10]      netlink_unicast+0x449/0x710
[ 2642.184104][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2642.184104][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2642.184104][   T10]      ___sys_sendmsg+0xee/0x170
[ 2642.184104][   T10]      __sys_sendmsg+0xcd/0x170
[ 2642.184104][   T10]      do_syscall_64+0xc6/0x1e0
[ 2642.184104][   T10] 
[ 2642.186123][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2642.186123][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2642.186123][   T10]      ipv6_find_idev+0x102/0x170
[ 2642.186123][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2642.186123][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2642.186123][   T10]      netlink_rcv_skb+0x130/0x360
[ 2642.186123][   T10]      netlink_unicast+0x449/0x710
[ 2642.186123][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2642.186123][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2642.186123][   T10]      ___sys_sendmsg+0xee/0x170
[ 2642.186123][   T10]      __sys_sendmsg+0xcd/0x170
[ 2642.186123][   T10]      do_syscall_64+0xc6/0x1e0
[ 2642.186123][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2642.186123][   T10] 
[ 2642.187715][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2642.187715][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2642.187715][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2642.187715][   T10]      ipv6_find_idev+0x102/0x170
[ 2642.187715][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2642.187715][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2642.187715][   T10]      netlink_rcv_skb+0x130/0x360
[ 2642.187715][   T10]      netlink_unicast+0x449/0x710
[ 2642.187715][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2642.187715][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2642.187715][   T10]      ___sys_sendmsg+0xee/0x170
[ 2642.187715][   T10]      __sys_sendmsg+0xcd/0x170
[ 2642.187715][   T10]      do_syscall_64+0xc6/0x1e0
[ 2642.187715][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2642.187715][   T10] 
[ 2642.189488][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2642.189761][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2642.189761][   T10]      dst_init+0x84/0x4a0
[ 2642.189761][   T10]      dst_alloc+0x97/0x150
[ 2642.189761][   T10]      ip6_dst_alloc+0x23/0x90
[ 2642.189761][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2642.189761][   T10]      ip6_pol_route+0x56f/0x840
[ 2642.189761][   T10]      fib6_rule_lookup+0x456/0x630
[ 2642.189761][   T10]      ip6_route_input+0x59c/0xa50
[ 2642.189761][   T10]      ipv6_rcv+0x397/0x810
[ 2642.189761][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2642.189761][   T10]      process_backlog+0x101/0x620
[ 2642.189761][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2642.189761][   T10]      net_rx_action+0x495/0xbe0
[ 2642.189761][   T10]      __do_softirq+0x1b5/0x7f6
[ 2642.189761][   T10] 
[ 2642.191465][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2642.191465][   T10]      netdev_get_by_index+0x5e/0x80
[ 2642.191465][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2642.191465][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2642.191465][   T10]      ip6_route_add+0x1c/0x140
[ 2642.191465][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2642.191465][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2642.191465][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2642.191465][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2642.191465][   T10]      netlink_rcv_skb+0x130/0x360
[ 2642.191465][   T10]      netlink_unicast+0x449/0x710
[ 2642.191465][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2642.191465][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2642.191465][   T10]      ___sys_sendmsg+0xee/0x170
[ 2642.191465][   T10]      __sys_sendmsg+0xcd/0x170
[ 2642.191465][   T10]      do_syscall_64+0xc6/0x1e0
[ 2642.191465][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2642.191465][   T10] 
[ 2642.193515][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2642.193515][   T10]      netdev_get_by_index+0x5e/0x80
[ 2642.193515][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2642.193515][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2642.193515][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2642.193515][   T10]      ipv6_add_addr+0x411/0x2000
[ 2642.193515][   T10]      inet6_addr_add+0x30e/0xa40
[ 2642.193515][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2642.193515][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2642.193515][   T10]      netlink_rcv_skb+0x130/0x360
[ 2642.193515][   T10]      netlink_unicast+0x449/0x710
[ 2642.193515][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2642.193515][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2642.193515][   T10]      ___sys_sendmsg+0xee/0x170
[ 2642.193515][   T10]      __sys_sendmsg+0xcd/0x170
[ 2642.193515][   T10]      do_syscall_64+0xc6/0x1e0
[ 2642.193515][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2642.193515][   T10] 
[ 2642.195578][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2642.195578][   T10]      netdev_get_by_index+0x5e/0x80
[ 2642.195578][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2642.195578][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2642.195578][   T10]      ip6_route_add+0x1c/0x140
[ 2642.195578][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2642.195578][   T10]      addrconf_add_dev+0xe2/0x170
[ 2642.195578][   T10]      inet6_addr_add+0x12f/0xa40
[ 2642.195578][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2642.195578][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2642.195578][   T10]      netlink_rcv_skb+0x130/0x360
[ 2642.195578][   T10]      netlink_unicast+0x449/0x710
[ 2642.195578][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2642.195578][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2642.195578][   T10]      ___sys_sendmsg+0xee/0x170
[ 2642.195578][   T10]      __sys_sendmsg+0xcd/0x170
[ 2642.195578][   T10]      do_syscall_64+0xc6/0x1e0
[ 2642.195578][   T10] 
[ 2642.197597][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2642.197597][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2642.197597][   T10]      ipv6_find_idev+0x102/0x170
[ 2642.197597][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2642.197597][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2642.197597][   T10]      netlink_rcv_skb+0x130/0x360
[ 2642.197597][   T10]      netlink_unicast+0x449/0x710
[ 2642.197597][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2642.197597][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2642.197597][   T10]      ___sys_sendmsg+0xee/0x170
[ 2642.197597][   T10]      __sys_sendmsg+0xcd/0x170
[ 2642.197597][   T10]      do_syscall_64+0xc6/0x1e0
[ 2642.197597][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2642.197597][   T10] 
[ 2642.199189][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2642.199189][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2642.199189][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2642.199189][   T10]      ipv6_find_idev+0x102/0x170
[ 2642.199189][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2642.199189][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2642.199189][   T10]      netlink_rcv_skb+0x130/0x360
[ 2642.199189][   T10]      netlink_unicast+0x449/0x710
[ 2642.199189][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2642.199189][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2642.199189][   T10]      ___sys_sendmsg+0xee/0x170
[ 2642.199189][   T10]      __sys_sendmsg+0xcd/0x170
[ 2642.199189][   T10]      do_syscall_64+0xc6/0x1e0
[ 2642.199189][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2642.199189][   T10] 
[ 2652.441846][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2652.442266][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2652.442266][   T10]      dst_init+0x84/0x4a0
[ 2652.442266][   T10]      dst_alloc+0x97/0x150
[ 2652.442266][   T10]      ip6_dst_alloc+0x23/0x90
[ 2652.442266][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2652.442266][   T10]      ip6_pol_route+0x56f/0x840
[ 2652.442266][   T10]      fib6_rule_lookup+0x456/0x630
[ 2652.442266][   T10]      ip6_route_input+0x59c/0xa50
[ 2652.442266][   T10]      ipv6_rcv+0x397/0x810
[ 2652.442266][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2652.442266][   T10]      process_backlog+0x101/0x620
[ 2652.442266][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2652.442266][   T10]      net_rx_action+0x495/0xbe0
[ 2652.442266][   T10]      __do_softirq+0x1b5/0x7f6
[ 2652.442266][   T10] 
[ 2652.444012][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2652.444012][   T10]      netdev_get_by_index+0x5e/0x80
[ 2652.444012][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2652.444012][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2652.444012][   T10]      ip6_route_add+0x1c/0x140
[ 2652.444012][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2652.444012][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2652.444012][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2652.444012][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2652.444012][   T10]      netlink_rcv_skb+0x130/0x360
[ 2652.444012][   T10]      netlink_unicast+0x449/0x710
[ 2652.444012][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2652.444012][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2652.444012][   T10]      ___sys_sendmsg+0xee/0x170
[ 2652.444012][   T10]      __sys_sendmsg+0xcd/0x170
[ 2652.444012][   T10]      do_syscall_64+0xc6/0x1e0
[ 2652.444012][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2652.444012][   T10] 
[ 2652.446087][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2652.446087][   T10]      netdev_get_by_index+0x5e/0x80
[ 2652.446087][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2652.446087][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2652.446087][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2652.446087][   T10]      ipv6_add_addr+0x411/0x2000
[ 2652.446087][   T10]      inet6_addr_add+0x30e/0xa40
[ 2652.446087][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2652.446087][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2652.446087][   T10]      netlink_rcv_skb+0x130/0x360
[ 2652.446087][   T10]      netlink_unicast+0x449/0x710
[ 2652.446087][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2652.446087][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2652.446087][   T10]      ___sys_sendmsg+0xee/0x170
[ 2652.446087][   T10]      __sys_sendmsg+0xcd/0x170
[ 2652.446087][   T10]      do_syscall_64+0xc6/0x1e0
[ 2652.446087][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2652.446087][   T10] 
[ 2652.448161][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2652.448161][   T10]      netdev_get_by_index+0x5e/0x80
[ 2652.448161][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2652.448161][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2652.448161][   T10]      ip6_route_add+0x1c/0x140
[ 2652.448161][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2652.448161][   T10]      addrconf_add_dev+0xe2/0x170
[ 2652.448161][   T10]      inet6_addr_add+0x12f/0xa40
[ 2652.448161][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2652.448161][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2652.448161][   T10]      netlink_rcv_skb+0x130/0x360
[ 2652.448161][   T10]      netlink_unicast+0x449/0x710
[ 2652.448161][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2652.448161][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2652.448161][   T10]      ___sys_sendmsg+0xee/0x170
[ 2652.448161][   T10]      __sys_sendmsg+0xcd/0x170
[ 2652.448161][   T10]      do_syscall_64+0xc6/0x1e0
[ 2652.448161][   T10] 
[ 2652.450203][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2652.450203][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2652.450203][   T10]      ipv6_find_idev+0x102/0x170
[ 2652.450203][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2652.450203][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2652.450203][   T10]      netlink_rcv_skb+0x130/0x360
[ 2652.450203][   T10]      netlink_unicast+0x449/0x710
[ 2652.450203][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2652.450203][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2652.450203][   T10]      ___sys_sendmsg+0xee/0x170
[ 2652.450203][   T10]      __sys_sendmsg+0xcd/0x170
[ 2652.450203][   T10]      do_syscall_64+0xc6/0x1e0
[ 2652.450203][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2652.450203][   T10] 
[ 2652.451792][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2652.451792][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2652.451792][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2652.451792][   T10]      ipv6_find_idev+0x102/0x170
[ 2652.451792][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2652.451792][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2652.451792][   T10]      netlink_rcv_skb+0x130/0x360
[ 2652.451792][   T10]      netlink_unicast+0x449/0x710
[ 2652.451792][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2652.451792][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2652.451792][   T10]      ___sys_sendmsg+0xee/0x170
[ 2652.451792][   T10]      __sys_sendmsg+0xcd/0x170
[ 2652.451792][   T10]      do_syscall_64+0xc6/0x1e0
[ 2652.451792][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2652.451792][   T10] 
[ 2652.453559][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2652.453830][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2652.453830][   T10]      dst_init+0x84/0x4a0
[ 2652.453830][   T10]      dst_alloc+0x97/0x150
[ 2652.453830][   T10]      ip6_dst_alloc+0x23/0x90
[ 2652.453830][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2652.453830][   T10]      ip6_pol_route+0x56f/0x840
[ 2652.453830][   T10]      fib6_rule_lookup+0x456/0x630
[ 2652.453830][   T10]      ip6_route_input+0x59c/0xa50
[ 2652.453830][   T10]      ipv6_rcv+0x397/0x810
[ 2652.453830][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2652.453830][   T10]      process_backlog+0x101/0x620
[ 2652.453830][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2652.453830][   T10]      net_rx_action+0x495/0xbe0
[ 2652.453830][   T10]      __do_softirq+0x1b5/0x7f6
[ 2652.453830][   T10] 
[ 2652.455536][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2652.455536][   T10]      netdev_get_by_index+0x5e/0x80
[ 2652.455536][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2652.455536][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2652.455536][   T10]      ip6_route_add+0x1c/0x140
[ 2652.455536][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2652.455536][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2652.455536][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2652.455536][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2652.455536][   T10]      netlink_rcv_skb+0x130/0x360
[ 2652.455536][   T10]      netlink_unicast+0x449/0x710
[ 2652.455536][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2652.455536][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2652.455536][   T10]      ___sys_sendmsg+0xee/0x170
[ 2652.455536][   T10]      __sys_sendmsg+0xcd/0x170
[ 2652.455536][   T10]      do_syscall_64+0xc6/0x1e0
[ 2652.455536][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2652.455536][   T10] 
[ 2652.457602][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2652.457602][   T10]      netdev_get_by_index+0x5e/0x80
[ 2652.457602][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2652.457602][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2652.457602][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2652.457602][   T10]      ipv6_add_addr+0x411/0x2000
[ 2652.457602][   T10]      inet6_addr_add+0x30e/0xa40
[ 2652.457602][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2652.457602][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2652.457602][   T10]      netlink_rcv_skb+0x130/0x360
[ 2652.457602][   T10]      netlink_unicast+0x449/0x710
[ 2652.457602][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2652.457602][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2652.457602][   T10]      ___sys_sendmsg+0xee/0x170
[ 2652.457602][   T10]      __sys_sendmsg+0xcd/0x170
[ 2652.457602][   T10]      do_syscall_64+0xc6/0x1e0
[ 2652.457602][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2652.457602][   T10] 
[ 2652.459658][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2652.459658][   T10]      netdev_get_by_index+0x5e/0x80
[ 2652.459658][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2652.459658][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2652.459658][   T10]      ip6_route_add+0x1c/0x140
[ 2652.459658][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2652.459658][   T10]      addrconf_add_dev+0xe2/0x170
[ 2652.459658][   T10]      inet6_addr_add+0x12f/0xa40
[ 2652.459658][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2652.459658][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2652.459658][   T10]      netlink_rcv_skb+0x130/0x360
[ 2652.459658][   T10]      netlink_unicast+0x449/0x710
[ 2652.459658][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2652.459658][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2652.459658][   T10]      ___sys_sendmsg+0xee/0x170
[ 2652.459658][   T10]      __sys_sendmsg+0xcd/0x170
[ 2652.459658][   T10]      do_syscall_64+0xc6/0x1e0
[ 2652.459658][   T10] 
[ 2652.461685][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2652.461685][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2652.461685][   T10]      ipv6_find_idev+0x102/0x170
[ 2652.461685][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2652.461685][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2652.461685][   T10]      netlink_rcv_skb+0x130/0x360
[ 2652.461685][   T10]      netlink_unicast+0x449/0x710
[ 2652.461685][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2652.461685][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2652.461685][   T10]      ___sys_sendmsg+0xee/0x170
[ 2652.461685][   T10]      __sys_sendmsg+0xcd/0x170
[ 2652.461685][   T10]      do_syscall_64+0xc6/0x1e0
[ 2652.461685][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2652.461685][   T10] 
[ 2652.463265][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2652.463265][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2652.463265][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2652.463265][   T10]      ipv6_find_idev+0x102/0x170
[ 2652.463265][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2652.463265][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2652.463265][   T10]      netlink_rcv_skb+0x130/0x360
[ 2652.463265][   T10]      netlink_unicast+0x449/0x710
[ 2652.463265][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2652.463265][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2652.463265][   T10]      ___sys_sendmsg+0xee/0x170
[ 2652.463265][   T10]      __sys_sendmsg+0xcd/0x170
[ 2652.463265][   T10]      do_syscall_64+0xc6/0x1e0
[ 2652.463265][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2652.463265][   T10] 
[ 2662.705787][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2662.706206][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2662.706206][   T10]      dst_init+0x84/0x4a0
[ 2662.706206][   T10]      dst_alloc+0x97/0x150
[ 2662.706206][   T10]      ip6_dst_alloc+0x23/0x90
[ 2662.706206][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2662.706206][   T10]      ip6_pol_route+0x56f/0x840
[ 2662.706206][   T10]      fib6_rule_lookup+0x456/0x630
[ 2662.706206][   T10]      ip6_route_input+0x59c/0xa50
[ 2662.706206][   T10]      ipv6_rcv+0x397/0x810
[ 2662.706206][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2662.706206][   T10]      process_backlog+0x101/0x620
[ 2662.706206][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2662.706206][   T10]      net_rx_action+0x495/0xbe0
[ 2662.706206][   T10]      __do_softirq+0x1b5/0x7f6
[ 2662.706206][   T10] 
[ 2662.707934][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2662.707934][   T10]      netdev_get_by_index+0x5e/0x80
[ 2662.707934][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2662.707934][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2662.707934][   T10]      ip6_route_add+0x1c/0x140
[ 2662.707934][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2662.707934][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2662.707934][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2662.707934][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2662.707934][   T10]      netlink_rcv_skb+0x130/0x360
[ 2662.707934][   T10]      netlink_unicast+0x449/0x710
[ 2662.707934][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2662.707934][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2662.707934][   T10]      ___sys_sendmsg+0xee/0x170
[ 2662.707934][   T10]      __sys_sendmsg+0xcd/0x170
[ 2662.707934][   T10]      do_syscall_64+0xc6/0x1e0
[ 2662.707934][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2662.707934][   T10] 
[ 2662.710018][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2662.710018][   T10]      netdev_get_by_index+0x5e/0x80
[ 2662.710018][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2662.710018][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2662.710018][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2662.710018][   T10]      ipv6_add_addr+0x411/0x2000
[ 2662.710018][   T10]      inet6_addr_add+0x30e/0xa40
[ 2662.710018][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2662.710018][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2662.710018][   T10]      netlink_rcv_skb+0x130/0x360
[ 2662.710018][   T10]      netlink_unicast+0x449/0x710
[ 2662.710018][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2662.710018][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2662.710018][   T10]      ___sys_sendmsg+0xee/0x170
[ 2662.710018][   T10]      __sys_sendmsg+0xcd/0x170
[ 2662.710018][   T10]      do_syscall_64+0xc6/0x1e0
[ 2662.710018][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2662.710018][   T10] 
[ 2662.712083][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2662.712083][   T10]      netdev_get_by_index+0x5e/0x80
[ 2662.712083][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2662.712083][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2662.712083][   T10]      ip6_route_add+0x1c/0x140
[ 2662.712083][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2662.712083][   T10]      addrconf_add_dev+0xe2/0x170
[ 2662.712083][   T10]      inet6_addr_add+0x12f/0xa40
[ 2662.712083][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2662.712083][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2662.712083][   T10]      netlink_rcv_skb+0x130/0x360
[ 2662.712083][   T10]      netlink_unicast+0x449/0x710
[ 2662.712083][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2662.712083][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2662.712083][   T10]      ___sys_sendmsg+0xee/0x170
[ 2662.712083][   T10]      __sys_sendmsg+0xcd/0x170
[ 2662.712083][   T10]      do_syscall_64+0xc6/0x1e0
[ 2662.712083][   T10] 
[ 2662.714102][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2662.714102][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2662.714102][   T10]      ipv6_find_idev+0x102/0x170
[ 2662.714102][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2662.714102][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2662.714102][   T10]      netlink_rcv_skb+0x130/0x360
[ 2662.714102][   T10]      netlink_unicast+0x449/0x710
[ 2662.714102][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2662.714102][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2662.714102][   T10]      ___sys_sendmsg+0xee/0x170
[ 2662.714102][   T10]      __sys_sendmsg+0xcd/0x170
[ 2662.714102][   T10]      do_syscall_64+0xc6/0x1e0
[ 2662.714102][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2662.714102][   T10] 
[ 2662.715694][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2662.715694][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2662.715694][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2662.715694][   T10]      ipv6_find_idev+0x102/0x170
[ 2662.715694][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2662.715694][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2662.715694][   T10]      netlink_rcv_skb+0x130/0x360
[ 2662.715694][   T10]      netlink_unicast+0x449/0x710
[ 2662.715694][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2662.715694][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2662.715694][   T10]      ___sys_sendmsg+0xee/0x170
[ 2662.715694][   T10]      __sys_sendmsg+0xcd/0x170
[ 2662.715694][   T10]      do_syscall_64+0xc6/0x1e0
[ 2662.715694][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2662.715694][   T10] 
[ 2662.717448][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2662.717702][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2662.717702][   T10]      dst_init+0x84/0x4a0
[ 2662.717702][   T10]      dst_alloc+0x97/0x150
[ 2662.717702][   T10]      ip6_dst_alloc+0x23/0x90
[ 2662.717702][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2662.717702][   T10]      ip6_pol_route+0x56f/0x840
[ 2662.717702][   T10]      fib6_rule_lookup+0x456/0x630
[ 2662.717702][   T10]      ip6_route_input+0x59c/0xa50
[ 2662.717702][   T10]      ipv6_rcv+0x397/0x810
[ 2662.717702][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2662.717702][   T10]      process_backlog+0x101/0x620
[ 2662.717702][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2662.717702][   T10]      net_rx_action+0x495/0xbe0
[ 2662.717702][   T10]      __do_softirq+0x1b5/0x7f6
[ 2662.717702][   T10] 
[ 2662.719389][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2662.719389][   T10]      netdev_get_by_index+0x5e/0x80
[ 2662.719389][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2662.719389][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2662.719389][   T10]      ip6_route_add+0x1c/0x140
[ 2662.719389][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2662.719389][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2662.719389][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2662.719389][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2662.719389][   T10]      netlink_rcv_skb+0x130/0x360
[ 2662.719389][   T10]      netlink_unicast+0x449/0x710
[ 2662.719389][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2662.719389][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2662.719389][   T10]      ___sys_sendmsg+0xee/0x170
[ 2662.719389][   T10]      __sys_sendmsg+0xcd/0x170
[ 2662.719389][   T10]      do_syscall_64+0xc6/0x1e0
[ 2662.719389][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2662.719389][   T10] 
[ 2662.721490][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2662.721490][   T10]      netdev_get_by_index+0x5e/0x80
[ 2662.721490][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2662.721490][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2662.721490][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2662.721490][   T10]      ipv6_add_addr+0x411/0x2000
[ 2662.721490][   T10]      inet6_addr_add+0x30e/0xa40
[ 2662.721490][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2662.721490][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2662.721490][   T10]      netlink_rcv_skb+0x130/0x360
[ 2662.721490][   T10]      netlink_unicast+0x449/0x710
[ 2662.721490][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2662.721490][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2662.721490][   T10]      ___sys_sendmsg+0xee/0x170
[ 2662.721490][   T10]      __sys_sendmsg+0xcd/0x170
[ 2662.721490][   T10]      do_syscall_64+0xc6/0x1e0
[ 2662.721490][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2662.721490][   T10] 
[ 2662.723553][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2662.723553][   T10]      netdev_get_by_index+0x5e/0x80
[ 2662.723553][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2662.723553][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2662.723553][   T10]      ip6_route_add+0x1c/0x140
[ 2662.723553][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2662.723553][   T10]      addrconf_add_dev+0xe2/0x170
[ 2662.723553][   T10]      inet6_addr_add+0x12f/0xa40
[ 2662.723553][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2662.723553][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2662.723553][   T10]      netlink_rcv_skb+0x130/0x360
[ 2662.723553][   T10]      netlink_unicast+0x449/0x710
[ 2662.723553][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2662.723553][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2662.723553][   T10]      ___sys_sendmsg+0xee/0x170
[ 2662.723553][   T10]      __sys_sendmsg+0xcd/0x170
[ 2662.723553][   T10]      do_syscall_64+0xc6/0x1e0
[ 2662.723553][   T10] 
[ 2662.725580][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2662.725580][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2662.725580][   T10]      ipv6_find_idev+0x102/0x170
[ 2662.725580][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2662.725580][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2662.725580][   T10]      netlink_rcv_skb+0x130/0x360
[ 2662.725580][   T10]      netlink_unicast+0x449/0x710
[ 2662.725580][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2662.725580][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2662.725580][   T10]      ___sys_sendmsg+0xee/0x170
[ 2662.725580][   T10]      __sys_sendmsg+0xcd/0x170
[ 2662.725580][   T10]      do_syscall_64+0xc6/0x1e0
[ 2662.725580][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2662.725580][   T10] 
[ 2662.727170][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2662.727170][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2662.727170][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2662.727170][   T10]      ipv6_find_idev+0x102/0x170
[ 2662.727170][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2662.727170][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2662.727170][   T10]      netlink_rcv_skb+0x130/0x360
[ 2662.727170][   T10]      netlink_unicast+0x449/0x710
[ 2662.727170][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2662.727170][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2662.727170][   T10]      ___sys_sendmsg+0xee/0x170
[ 2662.727170][   T10]      __sys_sendmsg+0xcd/0x170
[ 2662.727170][   T10]      do_syscall_64+0xc6/0x1e0
[ 2662.727170][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2662.727170][   T10] 
[ 2672.969779][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2672.970275][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2672.970275][   T10]      dst_init+0x84/0x4a0
[ 2672.970275][   T10]      dst_alloc+0x97/0x150
[ 2672.970275][   T10]      ip6_dst_alloc+0x23/0x90
[ 2672.970275][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2672.970275][   T10]      ip6_pol_route+0x56f/0x840
[ 2672.970275][   T10]      fib6_rule_lookup+0x456/0x630
[ 2672.970275][   T10]      ip6_route_input+0x59c/0xa50
[ 2672.970275][   T10]      ipv6_rcv+0x397/0x810
[ 2672.970275][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2672.970275][   T10]      process_backlog+0x101/0x620
[ 2672.970275][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2672.970275][   T10]      net_rx_action+0x495/0xbe0
[ 2672.970275][   T10]      __do_softirq+0x1b5/0x7f6
[ 2672.970275][   T10] 
[ 2672.972009][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2672.972009][   T10]      netdev_get_by_index+0x5e/0x80
[ 2672.972009][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2672.972009][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2672.972009][   T10]      ip6_route_add+0x1c/0x140
[ 2672.972009][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2672.972009][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2672.972009][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2672.972009][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2672.972009][   T10]      netlink_rcv_skb+0x130/0x360
[ 2672.972009][   T10]      netlink_unicast+0x449/0x710
[ 2672.972009][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2672.972009][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2672.972009][   T10]      ___sys_sendmsg+0xee/0x170
[ 2672.972009][   T10]      __sys_sendmsg+0xcd/0x170
[ 2672.972009][   T10]      do_syscall_64+0xc6/0x1e0
[ 2672.972009][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2672.972009][   T10] 
[ 2672.974087][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2672.974087][   T10]      netdev_get_by_index+0x5e/0x80
[ 2672.974087][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2672.974087][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2672.974087][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2672.974087][   T10]      ipv6_add_addr+0x411/0x2000
[ 2672.974087][   T10]      inet6_addr_add+0x30e/0xa40
[ 2672.974087][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2672.974087][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2672.974087][   T10]      netlink_rcv_skb+0x130/0x360
[ 2672.974087][   T10]      netlink_unicast+0x449/0x710
[ 2672.974087][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2672.974087][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2672.974087][   T10]      ___sys_sendmsg+0xee/0x170
[ 2672.974087][   T10]      __sys_sendmsg+0xcd/0x170
[ 2672.974087][   T10]      do_syscall_64+0xc6/0x1e0
[ 2672.974087][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2672.974087][   T10] 
[ 2672.976162][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2672.976162][   T10]      netdev_get_by_index+0x5e/0x80
[ 2672.976162][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2672.976162][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2672.976162][   T10]      ip6_route_add+0x1c/0x140
[ 2672.976162][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2672.976162][   T10]      addrconf_add_dev+0xe2/0x170
[ 2672.976162][   T10]      inet6_addr_add+0x12f/0xa40
[ 2672.976162][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2672.976162][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2672.976162][   T10]      netlink_rcv_skb+0x130/0x360
[ 2672.976162][   T10]      netlink_unicast+0x449/0x710
[ 2672.976162][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2672.976162][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2672.976162][   T10]      ___sys_sendmsg+0xee/0x170
[ 2672.976162][   T10]      __sys_sendmsg+0xcd/0x170
[ 2672.976162][   T10]      do_syscall_64+0xc6/0x1e0
[ 2672.976162][   T10] 
[ 2672.978194][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2672.978194][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2672.978194][   T10]      ipv6_find_idev+0x102/0x170
[ 2672.978194][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2672.978194][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2672.978194][   T10]      netlink_rcv_skb+0x130/0x360
[ 2672.978194][   T10]      netlink_unicast+0x449/0x710
[ 2672.978194][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2672.978194][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2672.978194][   T10]      ___sys_sendmsg+0xee/0x170
[ 2672.978194][   T10]      __sys_sendmsg+0xcd/0x170
[ 2672.978194][   T10]      do_syscall_64+0xc6/0x1e0
[ 2672.978194][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2672.978194][   T10] 
[ 2672.979786][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2672.979786][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2672.979786][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2672.979786][   T10]      ipv6_find_idev+0x102/0x170
[ 2672.979786][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2672.979786][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2672.979786][   T10]      netlink_rcv_skb+0x130/0x360
[ 2672.979786][   T10]      netlink_unicast+0x449/0x710
[ 2672.979786][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2672.979786][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2672.979786][   T10]      ___sys_sendmsg+0xee/0x170
[ 2672.979786][   T10]      __sys_sendmsg+0xcd/0x170
[ 2672.979786][   T10]      do_syscall_64+0xc6/0x1e0
[ 2672.979786][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2672.979786][   T10] 
[ 2672.981564][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2672.981831][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2672.981831][   T10]      dst_init+0x84/0x4a0
[ 2672.981831][   T10]      dst_alloc+0x97/0x150
[ 2672.981831][   T10]      ip6_dst_alloc+0x23/0x90
[ 2672.981831][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2672.981831][   T10]      ip6_pol_route+0x56f/0x840
[ 2672.981831][   T10]      fib6_rule_lookup+0x456/0x630
[ 2672.981831][   T10]      ip6_route_input+0x59c/0xa50
[ 2672.981831][   T10]      ipv6_rcv+0x397/0x810
[ 2672.981831][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2672.981831][   T10]      process_backlog+0x101/0x620
[ 2672.981831][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2672.981831][   T10]      net_rx_action+0x495/0xbe0
[ 2672.981831][   T10]      __do_softirq+0x1b5/0x7f6
[ 2672.981831][   T10] 
[ 2672.983525][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2672.983525][   T10]      netdev_get_by_index+0x5e/0x80
[ 2672.983525][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2672.983525][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2672.983525][   T10]      ip6_route_add+0x1c/0x140
[ 2672.983525][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2672.983525][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2672.983525][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2672.983525][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2672.983525][   T10]      netlink_rcv_skb+0x130/0x360
[ 2672.983525][   T10]      netlink_unicast+0x449/0x710
[ 2672.983525][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2672.983525][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2672.983525][   T10]      ___sys_sendmsg+0xee/0x170
[ 2672.983525][   T10]      __sys_sendmsg+0xcd/0x170
[ 2672.983525][   T10]      do_syscall_64+0xc6/0x1e0
[ 2672.983525][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2672.983525][   T10] 
[ 2672.985618][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2672.985618][   T10]      netdev_get_by_index+0x5e/0x80
[ 2672.985618][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2672.985618][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2672.985618][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2672.985618][   T10]      ipv6_add_addr+0x411/0x2000
[ 2672.985618][   T10]      inet6_addr_add+0x30e/0xa40
[ 2672.985618][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2672.985618][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2672.985618][   T10]      netlink_rcv_skb+0x130/0x360
[ 2672.985618][   T10]      netlink_unicast+0x449/0x710
[ 2672.985618][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2672.985618][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2672.985618][   T10]      ___sys_sendmsg+0xee/0x170
[ 2672.985618][   T10]      __sys_sendmsg+0xcd/0x170
[ 2672.985618][   T10]      do_syscall_64+0xc6/0x1e0
[ 2672.985618][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2672.985618][   T10] 
[ 2672.987695][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2672.987695][   T10]      netdev_get_by_index+0x5e/0x80
[ 2672.987695][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2672.987695][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2672.987695][   T10]      ip6_route_add+0x1c/0x140
[ 2672.987695][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2672.987695][   T10]      addrconf_add_dev+0xe2/0x170
[ 2672.987695][   T10]      inet6_addr_add+0x12f/0xa40
[ 2672.987695][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2672.987695][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2672.987695][   T10]      netlink_rcv_skb+0x130/0x360
[ 2672.987695][   T10]      netlink_unicast+0x449/0x710
[ 2672.987695][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2672.987695][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2672.987695][   T10]      ___sys_sendmsg+0xee/0x170
[ 2672.987695][   T10]      __sys_sendmsg+0xcd/0x170
[ 2672.987695][   T10]      do_syscall_64+0xc6/0x1e0
[ 2672.987695][   T10] 
[ 2672.989729][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2672.989729][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2672.989729][   T10]      ipv6_find_idev+0x102/0x170
[ 2672.989729][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2672.989729][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2672.989729][   T10]      netlink_rcv_skb+0x130/0x360
[ 2672.989729][   T10]      netlink_unicast+0x449/0x710
[ 2672.989729][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2672.989729][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2672.989729][   T10]      ___sys_sendmsg+0xee/0x170
[ 2672.989729][   T10]      __sys_sendmsg+0xcd/0x170
[ 2672.989729][   T10]      do_syscall_64+0xc6/0x1e0
[ 2672.989729][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2672.989729][   T10] 
[ 2672.991321][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2672.991321][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2672.991321][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2672.991321][   T10]      ipv6_find_idev+0x102/0x170
[ 2672.991321][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2672.991321][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2672.991321][   T10]      netlink_rcv_skb+0x130/0x360
[ 2672.991321][   T10]      netlink_unicast+0x449/0x710
[ 2672.991321][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2672.991321][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2672.991321][   T10]      ___sys_sendmsg+0xee/0x170
[ 2672.991321][   T10]      __sys_sendmsg+0xcd/0x170
[ 2672.991321][   T10]      do_syscall_64+0xc6/0x1e0
[ 2672.991321][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2672.991321][   T10] 
[ 2683.233803][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2683.234296][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2683.234296][   T10]      dst_init+0x84/0x4a0
[ 2683.234296][   T10]      dst_alloc+0x97/0x150
[ 2683.234296][   T10]      ip6_dst_alloc+0x23/0x90
[ 2683.234296][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2683.234296][   T10]      ip6_pol_route+0x56f/0x840
[ 2683.234296][   T10]      fib6_rule_lookup+0x456/0x630
[ 2683.234296][   T10]      ip6_route_input+0x59c/0xa50
[ 2683.234296][   T10]      ipv6_rcv+0x397/0x810
[ 2683.234296][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2683.234296][   T10]      process_backlog+0x101/0x620
[ 2683.234296][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2683.234296][   T10]      net_rx_action+0x495/0xbe0
[ 2683.234296][   T10]      __do_softirq+0x1b5/0x7f6
[ 2683.234296][   T10] 
[ 2683.236033][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2683.236033][   T10]      netdev_get_by_index+0x5e/0x80
[ 2683.236033][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2683.236033][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2683.236033][   T10]      ip6_route_add+0x1c/0x140
[ 2683.236033][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2683.236033][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2683.236033][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2683.236033][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2683.236033][   T10]      netlink_rcv_skb+0x130/0x360
[ 2683.236033][   T10]      netlink_unicast+0x449/0x710
[ 2683.236033][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2683.236033][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2683.236033][   T10]      ___sys_sendmsg+0xee/0x170
[ 2683.236033][   T10]      __sys_sendmsg+0xcd/0x170
[ 2683.236033][   T10]      do_syscall_64+0xc6/0x1e0
[ 2683.236033][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2683.236033][   T10] 
[ 2683.238108][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2683.238108][   T10]      netdev_get_by_index+0x5e/0x80
[ 2683.238108][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2683.238108][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2683.238108][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2683.238108][   T10]      ipv6_add_addr+0x411/0x2000
[ 2683.238108][   T10]      inet6_addr_add+0x30e/0xa40
[ 2683.238108][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2683.238108][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2683.238108][   T10]      netlink_rcv_skb+0x130/0x360
[ 2683.238108][   T10]      netlink_unicast+0x449/0x710
[ 2683.238108][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2683.238108][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2683.238108][   T10]      ___sys_sendmsg+0xee/0x170
[ 2683.238108][   T10]      __sys_sendmsg+0xcd/0x170
[ 2683.238108][   T10]      do_syscall_64+0xc6/0x1e0
[ 2683.238108][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2683.238108][   T10] 
[ 2683.240191][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2683.240191][   T10]      netdev_get_by_index+0x5e/0x80
[ 2683.240191][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2683.240191][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2683.240191][   T10]      ip6_route_add+0x1c/0x140
[ 2683.240191][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2683.240191][   T10]      addrconf_add_dev+0xe2/0x170
[ 2683.240191][   T10]      inet6_addr_add+0x12f/0xa40
[ 2683.240191][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2683.240191][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2683.240191][   T10]      netlink_rcv_skb+0x130/0x360
[ 2683.240191][   T10]      netlink_unicast+0x449/0x710
[ 2683.240191][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2683.240191][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2683.240191][   T10]      ___sys_sendmsg+0xee/0x170
[ 2683.240191][   T10]      __sys_sendmsg+0xcd/0x170
[ 2683.240191][   T10]      do_syscall_64+0xc6/0x1e0
[ 2683.240191][   T10] 
[ 2683.242224][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2683.242224][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2683.242224][   T10]      ipv6_find_idev+0x102/0x170
[ 2683.242224][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2683.242224][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2683.242224][   T10]      netlink_rcv_skb+0x130/0x360
[ 2683.242224][   T10]      netlink_unicast+0x449/0x710
[ 2683.242224][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2683.242224][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2683.242224][   T10]      ___sys_sendmsg+0xee/0x170
[ 2683.242224][   T10]      __sys_sendmsg+0xcd/0x170
[ 2683.242224][   T10]      do_syscall_64+0xc6/0x1e0
[ 2683.242224][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2683.242224][   T10] 
[ 2683.243820][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2683.243820][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2683.243820][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2683.243820][   T10]      ipv6_find_idev+0x102/0x170
[ 2683.243820][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2683.243820][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2683.243820][   T10]      netlink_rcv_skb+0x130/0x360
[ 2683.243820][   T10]      netlink_unicast+0x449/0x710
[ 2683.243820][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2683.243820][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2683.243820][   T10]      ___sys_sendmsg+0xee/0x170
[ 2683.243820][   T10]      __sys_sendmsg+0xcd/0x170
[ 2683.243820][   T10]      do_syscall_64+0xc6/0x1e0
[ 2683.243820][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2683.243820][   T10] 
[ 2683.245585][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2683.245858][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2683.245858][   T10]      dst_init+0x84/0x4a0
[ 2683.245858][   T10]      dst_alloc+0x97/0x150
[ 2683.245858][   T10]      ip6_dst_alloc+0x23/0x90
[ 2683.245858][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2683.245858][   T10]      ip6_pol_route+0x56f/0x840
[ 2683.245858][   T10]      fib6_rule_lookup+0x456/0x630
[ 2683.245858][   T10]      ip6_route_input+0x59c/0xa50
[ 2683.245858][   T10]      ipv6_rcv+0x397/0x810
[ 2683.245858][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2683.245858][   T10]      process_backlog+0x101/0x620
[ 2683.245858][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2683.245858][   T10]      net_rx_action+0x495/0xbe0
[ 2683.245858][   T10]      __do_softirq+0x1b5/0x7f6
[ 2683.245858][   T10] 
[ 2683.247562][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2683.247562][   T10]      netdev_get_by_index+0x5e/0x80
[ 2683.247562][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2683.247562][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2683.247562][   T10]      ip6_route_add+0x1c/0x140
[ 2683.247562][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2683.247562][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2683.247562][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2683.247562][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2683.247562][   T10]      netlink_rcv_skb+0x130/0x360
[ 2683.247562][   T10]      netlink_unicast+0x449/0x710
[ 2683.247562][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2683.247562][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2683.247562][   T10]      ___sys_sendmsg+0xee/0x170
[ 2683.247562][   T10]      __sys_sendmsg+0xcd/0x170
[ 2683.247562][   T10]      do_syscall_64+0xc6/0x1e0
[ 2683.247562][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2683.247562][   T10] 
[ 2683.249626][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2683.249626][   T10]      netdev_get_by_index+0x5e/0x80
[ 2683.249626][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2683.249626][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2683.249626][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2683.249626][   T10]      ipv6_add_addr+0x411/0x2000
[ 2683.249626][   T10]      inet6_addr_add+0x30e/0xa40
[ 2683.249626][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2683.249626][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2683.249626][   T10]      netlink_rcv_skb+0x130/0x360
[ 2683.249626][   T10]      netlink_unicast+0x449/0x710
[ 2683.249626][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2683.249626][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2683.249626][   T10]      ___sys_sendmsg+0xee/0x170
[ 2683.249626][   T10]      __sys_sendmsg+0xcd/0x170
[ 2683.249626][   T10]      do_syscall_64+0xc6/0x1e0
[ 2683.249626][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2683.249626][   T10] 
[ 2683.251707][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2683.251707][   T10]      netdev_get_by_index+0x5e/0x80
[ 2683.251707][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2683.251707][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2683.251707][   T10]      ip6_route_add+0x1c/0x140
[ 2683.251707][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2683.251707][   T10]      addrconf_add_dev+0xe2/0x170
[ 2683.251707][   T10]      inet6_addr_add+0x12f/0xa40
[ 2683.251707][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2683.251707][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2683.251707][   T10]      netlink_rcv_skb+0x130/0x360
[ 2683.251707][   T10]      netlink_unicast+0x449/0x710
[ 2683.251707][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2683.251707][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2683.251707][   T10]      ___sys_sendmsg+0xee/0x170
[ 2683.251707][   T10]      __sys_sendmsg+0xcd/0x170
[ 2683.251707][   T10]      do_syscall_64+0xc6/0x1e0
[ 2683.251707][   T10] 
[ 2683.253738][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2683.253738][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2683.253738][   T10]      ipv6_find_idev+0x102/0x170
[ 2683.253738][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2683.253738][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2683.253738][   T10]      netlink_rcv_skb+0x130/0x360
[ 2683.253738][   T10]      netlink_unicast+0x449/0x710
[ 2683.253738][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2683.253738][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2683.253738][   T10]      ___sys_sendmsg+0xee/0x170
[ 2683.253738][   T10]      __sys_sendmsg+0xcd/0x170
[ 2683.253738][   T10]      do_syscall_64+0xc6/0x1e0
[ 2683.253738][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2683.253738][   T10] 
[ 2683.255329][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2683.255329][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2683.255329][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2683.255329][   T10]      ipv6_find_idev+0x102/0x170
[ 2683.255329][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2683.255329][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2683.255329][   T10]      netlink_rcv_skb+0x130/0x360
[ 2683.255329][   T10]      netlink_unicast+0x449/0x710
[ 2683.255329][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2683.255329][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2683.255329][   T10]      ___sys_sendmsg+0xee/0x170
[ 2683.255329][   T10]      __sys_sendmsg+0xcd/0x170
[ 2683.255329][   T10]      do_syscall_64+0xc6/0x1e0
[ 2683.255329][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2683.255329][   T10] 
[ 2693.497788][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2693.498284][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2693.498284][   T10]      dst_init+0x84/0x4a0
[ 2693.498284][   T10]      dst_alloc+0x97/0x150
[ 2693.498284][   T10]      ip6_dst_alloc+0x23/0x90
[ 2693.498284][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2693.498284][   T10]      ip6_pol_route+0x56f/0x840
[ 2693.498284][   T10]      fib6_rule_lookup+0x456/0x630
[ 2693.498284][   T10]      ip6_route_input+0x59c/0xa50
[ 2693.498284][   T10]      ipv6_rcv+0x397/0x810
[ 2693.498284][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2693.498284][   T10]      process_backlog+0x101/0x620
[ 2693.498284][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2693.498284][   T10]      net_rx_action+0x495/0xbe0
[ 2693.498284][   T10]      __do_softirq+0x1b5/0x7f6
[ 2693.498284][   T10] 
[ 2693.500028][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2693.500028][   T10]      netdev_get_by_index+0x5e/0x80
[ 2693.500028][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2693.500028][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2693.500028][   T10]      ip6_route_add+0x1c/0x140
[ 2693.500028][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2693.500028][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2693.500028][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2693.500028][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2693.500028][   T10]      netlink_rcv_skb+0x130/0x360
[ 2693.500028][   T10]      netlink_unicast+0x449/0x710
[ 2693.500028][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2693.500028][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2693.500028][   T10]      ___sys_sendmsg+0xee/0x170
[ 2693.500028][   T10]      __sys_sendmsg+0xcd/0x170
[ 2693.500028][   T10]      do_syscall_64+0xc6/0x1e0
[ 2693.500028][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2693.500028][   T10] 
[ 2693.502096][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2693.502096][   T10]      netdev_get_by_index+0x5e/0x80
[ 2693.502096][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2693.502096][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2693.502096][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2693.502096][   T10]      ipv6_add_addr+0x411/0x2000
[ 2693.502096][   T10]      inet6_addr_add+0x30e/0xa40
[ 2693.502096][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2693.502096][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2693.502096][   T10]      netlink_rcv_skb+0x130/0x360
[ 2693.502096][   T10]      netlink_unicast+0x449/0x710
[ 2693.502096][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2693.502096][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2693.502096][   T10]      ___sys_sendmsg+0xee/0x170
[ 2693.502096][   T10]      __sys_sendmsg+0xcd/0x170
[ 2693.502096][   T10]      do_syscall_64+0xc6/0x1e0
[ 2693.502096][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2693.502096][   T10] 
[ 2693.504167][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2693.504167][   T10]      netdev_get_by_index+0x5e/0x80
[ 2693.504167][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2693.504167][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2693.504167][   T10]      ip6_route_add+0x1c/0x140
[ 2693.504167][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2693.504167][   T10]      addrconf_add_dev+0xe2/0x170
[ 2693.504167][   T10]      inet6_addr_add+0x12f/0xa40
[ 2693.504167][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2693.504167][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2693.504167][   T10]      netlink_rcv_skb+0x130/0x360
[ 2693.504167][   T10]      netlink_unicast+0x449/0x710
[ 2693.504167][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2693.504167][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2693.504167][   T10]      ___sys_sendmsg+0xee/0x170
[ 2693.504167][   T10]      __sys_sendmsg+0xcd/0x170
[ 2693.504167][   T10]      do_syscall_64+0xc6/0x1e0
[ 2693.504167][   T10] 
[ 2693.506196][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2693.506196][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2693.506196][   T10]      ipv6_find_idev+0x102/0x170
[ 2693.506196][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2693.506196][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2693.506196][   T10]      netlink_rcv_skb+0x130/0x360
[ 2693.506196][   T10]      netlink_unicast+0x449/0x710
[ 2693.506196][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2693.506196][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2693.506196][   T10]      ___sys_sendmsg+0xee/0x170
[ 2693.506196][   T10]      __sys_sendmsg+0xcd/0x170
[ 2693.506196][   T10]      do_syscall_64+0xc6/0x1e0
[ 2693.506196][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2693.506196][   T10] 
[ 2693.507785][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2693.507785][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2693.507785][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2693.507785][   T10]      ipv6_find_idev+0x102/0x170
[ 2693.507785][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2693.507785][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2693.507785][   T10]      netlink_rcv_skb+0x130/0x360
[ 2693.507785][   T10]      netlink_unicast+0x449/0x710
[ 2693.507785][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2693.507785][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2693.507785][   T10]      ___sys_sendmsg+0xee/0x170
[ 2693.507785][   T10]      __sys_sendmsg+0xcd/0x170
[ 2693.507785][   T10]      do_syscall_64+0xc6/0x1e0
[ 2693.507785][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2693.507785][   T10] 
[ 2693.509547][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2693.509814][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2693.509814][   T10]      dst_init+0x84/0x4a0
[ 2693.509814][   T10]      dst_alloc+0x97/0x150
[ 2693.509814][   T10]      ip6_dst_alloc+0x23/0x90
[ 2693.509814][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2693.509814][   T10]      ip6_pol_route+0x56f/0x840
[ 2693.509814][   T10]      fib6_rule_lookup+0x456/0x630
[ 2693.509814][   T10]      ip6_route_input+0x59c/0xa50
[ 2693.509814][   T10]      ipv6_rcv+0x397/0x810
[ 2693.509814][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2693.509814][   T10]      process_backlog+0x101/0x620
[ 2693.509814][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2693.509814][   T10]      net_rx_action+0x495/0xbe0
[ 2693.509814][   T10]      __do_softirq+0x1b5/0x7f6
[ 2693.509814][   T10] 
[ 2693.511506][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2693.511506][   T10]      netdev_get_by_index+0x5e/0x80
[ 2693.511506][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2693.511506][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2693.511506][   T10]      ip6_route_add+0x1c/0x140
[ 2693.511506][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2693.511506][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2693.511506][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2693.511506][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2693.511506][   T10]      netlink_rcv_skb+0x130/0x360
[ 2693.511506][   T10]      netlink_unicast+0x449/0x710
[ 2693.511506][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2693.511506][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2693.511506][   T10]      ___sys_sendmsg+0xee/0x170
[ 2693.511506][   T10]      __sys_sendmsg+0xcd/0x170
[ 2693.511506][   T10]      do_syscall_64+0xc6/0x1e0
[ 2693.511506][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2693.511506][   T10] 
[ 2693.513572][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2693.513572][   T10]      netdev_get_by_index+0x5e/0x80
[ 2693.513572][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2693.513572][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2693.513572][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2693.513572][   T10]      ipv6_add_addr+0x411/0x2000
[ 2693.513572][   T10]      inet6_addr_add+0x30e/0xa40
[ 2693.513572][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2693.513572][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2693.513572][   T10]      netlink_rcv_skb+0x130/0x360
[ 2693.513572][   T10]      netlink_unicast+0x449/0x710
[ 2693.513572][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2693.513572][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2693.513572][   T10]      ___sys_sendmsg+0xee/0x170
[ 2693.513572][   T10]      __sys_sendmsg+0xcd/0x170
[ 2693.513572][   T10]      do_syscall_64+0xc6/0x1e0
[ 2693.513572][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2693.513572][   T10] 
[ 2693.515636][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2693.515636][   T10]      netdev_get_by_index+0x5e/0x80
[ 2693.515636][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2693.515636][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2693.515636][   T10]      ip6_route_add+0x1c/0x140
[ 2693.515636][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2693.515636][   T10]      addrconf_add_dev+0xe2/0x170
[ 2693.515636][   T10]      inet6_addr_add+0x12f/0xa40
[ 2693.515636][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2693.515636][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2693.515636][   T10]      netlink_rcv_skb+0x130/0x360
[ 2693.515636][   T10]      netlink_unicast+0x449/0x710
[ 2693.515636][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2693.515636][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2693.515636][   T10]      ___sys_sendmsg+0xee/0x170
[ 2693.515636][   T10]      __sys_sendmsg+0xcd/0x170
[ 2693.515636][   T10]      do_syscall_64+0xc6/0x1e0
[ 2693.515636][   T10] 
[ 2693.517672][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2693.517672][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2693.517672][   T10]      ipv6_find_idev+0x102/0x170
[ 2693.517672][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2693.517672][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2693.517672][   T10]      netlink_rcv_skb+0x130/0x360
[ 2693.517672][   T10]      netlink_unicast+0x449/0x710
[ 2693.517672][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2693.517672][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2693.517672][   T10]      ___sys_sendmsg+0xee/0x170
[ 2693.517672][   T10]      __sys_sendmsg+0xcd/0x170
[ 2693.517672][   T10]      do_syscall_64+0xc6/0x1e0
[ 2693.517672][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2693.517672][   T10] 
[ 2693.519267][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2693.519267][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2693.519267][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2693.519267][   T10]      ipv6_find_idev+0x102/0x170
[ 2693.519267][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2693.519267][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2693.519267][   T10]      netlink_rcv_skb+0x130/0x360
[ 2693.519267][   T10]      netlink_unicast+0x449/0x710
[ 2693.519267][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2693.519267][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2693.519267][   T10]      ___sys_sendmsg+0xee/0x170
[ 2693.519267][   T10]      __sys_sendmsg+0xcd/0x170
[ 2693.519267][   T10]      do_syscall_64+0xc6/0x1e0
[ 2693.519267][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2693.519267][   T10] 
[ 2703.761780][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2703.762264][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2703.762264][   T10]      dst_init+0x84/0x4a0
[ 2703.762264][   T10]      dst_alloc+0x97/0x150
[ 2703.762264][   T10]      ip6_dst_alloc+0x23/0x90
[ 2703.762264][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2703.762264][   T10]      ip6_pol_route+0x56f/0x840
[ 2703.762264][   T10]      fib6_rule_lookup+0x456/0x630
[ 2703.762264][   T10]      ip6_route_input+0x59c/0xa50
[ 2703.762264][   T10]      ipv6_rcv+0x397/0x810
[ 2703.762264][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2703.762264][   T10]      process_backlog+0x101/0x620
[ 2703.762264][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2703.762264][   T10]      net_rx_action+0x495/0xbe0
[ 2703.762264][   T10]      __do_softirq+0x1b5/0x7f6
[ 2703.762264][   T10] 
[ 2703.764004][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2703.764004][   T10]      netdev_get_by_index+0x5e/0x80
[ 2703.764004][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2703.764004][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2703.764004][   T10]      ip6_route_add+0x1c/0x140
[ 2703.764004][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2703.764004][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2703.764004][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2703.764004][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2703.764004][   T10]      netlink_rcv_skb+0x130/0x360
[ 2703.764004][   T10]      netlink_unicast+0x449/0x710
[ 2703.764004][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2703.764004][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2703.764004][   T10]      ___sys_sendmsg+0xee/0x170
[ 2703.764004][   T10]      __sys_sendmsg+0xcd/0x170
[ 2703.764004][   T10]      do_syscall_64+0xc6/0x1e0
[ 2703.764004][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2703.764004][   T10] 
[ 2703.766086][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2703.766086][   T10]      netdev_get_by_index+0x5e/0x80
[ 2703.766086][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2703.766086][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2703.766086][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2703.766086][   T10]      ipv6_add_addr+0x411/0x2000
[ 2703.766086][   T10]      inet6_addr_add+0x30e/0xa40
[ 2703.766086][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2703.766086][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2703.766086][   T10]      netlink_rcv_skb+0x130/0x360
[ 2703.766086][   T10]      netlink_unicast+0x449/0x710
[ 2703.766086][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2703.766086][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2703.766086][   T10]      ___sys_sendmsg+0xee/0x170
[ 2703.766086][   T10]      __sys_sendmsg+0xcd/0x170
[ 2703.766086][   T10]      do_syscall_64+0xc6/0x1e0
[ 2703.766086][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2703.766086][   T10] 
[ 2703.768702][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2703.768702][   T10]      netdev_get_by_index+0x5e/0x80
[ 2703.768702][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2703.768702][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2703.768702][   T10]      ip6_route_add+0x1c/0x140
[ 2703.768702][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2703.768702][   T10]      addrconf_add_dev+0xe2/0x170
[ 2703.768702][   T10]      inet6_addr_add+0x12f/0xa40
[ 2703.768702][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2703.768702][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2703.768702][   T10]      netlink_rcv_skb+0x130/0x360
[ 2703.768702][   T10]      netlink_unicast+0x449/0x710
[ 2703.768702][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2703.768702][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2703.768702][   T10]      ___sys_sendmsg+0xee/0x170
[ 2703.768702][   T10]      __sys_sendmsg+0xcd/0x170
[ 2703.768702][   T10]      do_syscall_64+0xc6/0x1e0
[ 2703.768702][   T10] 
[ 2703.770745][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2703.770745][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2703.770745][   T10]      ipv6_find_idev+0x102/0x170
[ 2703.770745][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2703.770745][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2703.770745][   T10]      netlink_rcv_skb+0x130/0x360
[ 2703.770745][   T10]      netlink_unicast+0x449/0x710
[ 2703.770745][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2703.770745][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2703.770745][   T10]      ___sys_sendmsg+0xee/0x170
[ 2703.770745][   T10]      __sys_sendmsg+0xcd/0x170
[ 2703.770745][   T10]      do_syscall_64+0xc6/0x1e0
[ 2703.770745][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2703.770745][   T10] 
[ 2703.772332][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2703.772332][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2703.772332][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2703.772332][   T10]      ipv6_find_idev+0x102/0x170
[ 2703.772332][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2703.772332][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2703.772332][   T10]      netlink_rcv_skb+0x130/0x360
[ 2703.772332][   T10]      netlink_unicast+0x449/0x710
[ 2703.772332][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2703.772332][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2703.772332][   T10]      ___sys_sendmsg+0xee/0x170
[ 2703.772332][   T10]      __sys_sendmsg+0xcd/0x170
[ 2703.772332][   T10]      do_syscall_64+0xc6/0x1e0
[ 2703.772332][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2703.772332][   T10] 
[ 2703.774095][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2703.774356][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2703.774356][   T10]      dst_init+0x84/0x4a0
[ 2703.774356][   T10]      dst_alloc+0x97/0x150
[ 2703.774356][   T10]      ip6_dst_alloc+0x23/0x90
[ 2703.774356][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2703.774356][   T10]      ip6_pol_route+0x56f/0x840
[ 2703.774356][   T10]      fib6_rule_lookup+0x456/0x630
[ 2703.774356][   T10]      ip6_route_input+0x59c/0xa50
[ 2703.774356][   T10]      ipv6_rcv+0x397/0x810
[ 2703.774356][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2703.774356][   T10]      process_backlog+0x101/0x620
[ 2703.774356][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2703.774356][   T10]      net_rx_action+0x495/0xbe0
[ 2703.774356][   T10]      __do_softirq+0x1b5/0x7f6
[ 2703.774356][   T10] 
[ 2703.776043][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2703.776043][   T10]      netdev_get_by_index+0x5e/0x80
[ 2703.776043][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2703.776043][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2703.776043][   T10]      ip6_route_add+0x1c/0x140
[ 2703.776043][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2703.776043][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2703.776043][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2703.776043][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2703.776043][   T10]      netlink_rcv_skb+0x130/0x360
[ 2703.776043][   T10]      netlink_unicast+0x449/0x710
[ 2703.776043][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2703.776043][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2703.776043][   T10]      ___sys_sendmsg+0xee/0x170
[ 2703.776043][   T10]      __sys_sendmsg+0xcd/0x170
[ 2703.776043][   T10]      do_syscall_64+0xc6/0x1e0
[ 2703.776043][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2703.776043][   T10] 
[ 2703.778105][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2703.778105][   T10]      netdev_get_by_index+0x5e/0x80
[ 2703.778105][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2703.778105][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2703.778105][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2703.778105][   T10]      ipv6_add_addr+0x411/0x2000
[ 2703.778105][   T10]      inet6_addr_add+0x30e/0xa40
[ 2703.778105][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2703.778105][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2703.778105][   T10]      netlink_rcv_skb+0x130/0x360
[ 2703.778105][   T10]      netlink_unicast+0x449/0x710
[ 2703.778105][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2703.778105][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2703.778105][   T10]      ___sys_sendmsg+0xee/0x170
[ 2703.778105][   T10]      __sys_sendmsg+0xcd/0x170
[ 2703.778105][   T10]      do_syscall_64+0xc6/0x1e0
[ 2703.778105][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2703.778105][   T10] 
[ 2703.780170][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2703.780170][   T10]      netdev_get_by_index+0x5e/0x80
[ 2703.780170][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2703.780170][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2703.780170][   T10]      ip6_route_add+0x1c/0x140
[ 2703.780170][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2703.780170][   T10]      addrconf_add_dev+0xe2/0x170
[ 2703.780170][   T10]      inet6_addr_add+0x12f/0xa40
[ 2703.780170][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2703.780170][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2703.780170][   T10]      netlink_rcv_skb+0x130/0x360
[ 2703.780170][   T10]      netlink_unicast+0x449/0x710
[ 2703.780170][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2703.780170][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2703.780170][   T10]      ___sys_sendmsg+0xee/0x170
[ 2703.780170][   T10]      __sys_sendmsg+0xcd/0x170
[ 2703.780170][   T10]      do_syscall_64+0xc6/0x1e0
[ 2703.780170][   T10] 
[ 2703.782193][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2703.782193][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2703.782193][   T10]      ipv6_find_idev+0x102/0x170
[ 2703.782193][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2703.782193][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2703.782193][   T10]      netlink_rcv_skb+0x130/0x360
[ 2703.782193][   T10]      netlink_unicast+0x449/0x710
[ 2703.782193][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2703.782193][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2703.782193][   T10]      ___sys_sendmsg+0xee/0x170
[ 2703.782193][   T10]      __sys_sendmsg+0xcd/0x170
[ 2703.782193][   T10]      do_syscall_64+0xc6/0x1e0
[ 2703.782193][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2703.782193][   T10] 
[ 2703.784180][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2703.784180][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2703.784180][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2703.784180][   T10]      ipv6_find_idev+0x102/0x170
[ 2703.784180][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2703.784180][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2703.784180][   T10]      netlink_rcv_skb+0x130/0x360
[ 2703.784180][   T10]      netlink_unicast+0x449/0x710
[ 2703.784180][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2703.784180][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2703.784180][   T10]      ___sys_sendmsg+0xee/0x170
[ 2703.784180][   T10]      __sys_sendmsg+0xcd/0x170
[ 2703.784180][   T10]      do_syscall_64+0xc6/0x1e0
[ 2703.784180][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2703.784180][   T10] 
[ 2713.817853][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2713.818289][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2713.818289][   T10]      dst_init+0x84/0x4a0
[ 2713.818289][   T10]      dst_alloc+0x97/0x150
[ 2713.818289][   T10]      ip6_dst_alloc+0x23/0x90
[ 2713.818289][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2713.818289][   T10]      ip6_pol_route+0x56f/0x840
[ 2713.818289][   T10]      fib6_rule_lookup+0x456/0x630
[ 2713.818289][   T10]      ip6_route_input+0x59c/0xa50
[ 2713.818289][   T10]      ipv6_rcv+0x397/0x810
[ 2713.818289][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2713.818289][   T10]      process_backlog+0x101/0x620
[ 2713.818289][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2713.818289][   T10]      net_rx_action+0x495/0xbe0
[ 2713.818289][   T10]      __do_softirq+0x1b5/0x7f6
[ 2713.818289][   T10] 
[ 2713.820088][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2713.820088][   T10]      netdev_get_by_index+0x5e/0x80
[ 2713.820088][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2713.820088][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2713.820088][   T10]      ip6_route_add+0x1c/0x140
[ 2713.820088][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2713.820088][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2713.820088][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2713.820088][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2713.820088][   T10]      netlink_rcv_skb+0x130/0x360
[ 2713.820088][   T10]      netlink_unicast+0x449/0x710
[ 2713.820088][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2713.820088][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2713.820088][   T10]      ___sys_sendmsg+0xee/0x170
[ 2713.820088][   T10]      __sys_sendmsg+0xcd/0x170
[ 2713.820088][   T10]      do_syscall_64+0xc6/0x1e0
[ 2713.820088][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2713.820088][   T10] 
[ 2713.822120][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2713.822120][   T10]      netdev_get_by_index+0x5e/0x80
[ 2713.822120][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2713.822120][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2713.822120][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2713.822120][   T10]      ipv6_add_addr+0x411/0x2000
[ 2713.822120][   T10]      inet6_addr_add+0x30e/0xa40
[ 2713.822120][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2713.822120][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2713.822120][   T10]      netlink_rcv_skb+0x130/0x360
[ 2713.822120][   T10]      netlink_unicast+0x449/0x710
[ 2713.822120][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2713.822120][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2713.822120][   T10]      ___sys_sendmsg+0xee/0x170
[ 2713.822120][   T10]      __sys_sendmsg+0xcd/0x170
[ 2713.822120][   T10]      do_syscall_64+0xc6/0x1e0
[ 2713.822120][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2713.822120][   T10] 
[ 2713.824152][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2713.824152][   T10]      netdev_get_by_index+0x5e/0x80
[ 2713.824152][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2713.824152][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2713.824152][   T10]      ip6_route_add+0x1c/0x140
[ 2713.824152][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2713.824152][   T10]      addrconf_add_dev+0xe2/0x170
[ 2713.824152][   T10]      inet6_addr_add+0x12f/0xa40
[ 2713.824152][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2713.824152][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2713.824152][   T10]      netlink_rcv_skb+0x130/0x360
[ 2713.824152][   T10]      netlink_unicast+0x449/0x710
[ 2713.824152][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2713.824152][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2713.824152][   T10]      ___sys_sendmsg+0xee/0x170
[ 2713.824152][   T10]      __sys_sendmsg+0xcd/0x170
[ 2713.824152][   T10]      do_syscall_64+0xc6/0x1e0
[ 2713.824152][   T10] 
[ 2713.826135][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2713.826135][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2713.826135][   T10]      ipv6_find_idev+0x102/0x170
[ 2713.826135][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2713.826135][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2713.826135][   T10]      netlink_rcv_skb+0x130/0x360
[ 2713.826135][   T10]      netlink_unicast+0x449/0x710
[ 2713.826135][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2713.826135][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2713.826135][   T10]      ___sys_sendmsg+0xee/0x170
[ 2713.826135][   T10]      __sys_sendmsg+0xcd/0x170
[ 2713.826135][   T10]      do_syscall_64+0xc6/0x1e0
[ 2713.826135][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2713.826135][   T10] 
[ 2713.827696][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2713.827696][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2713.827696][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2713.827696][   T10]      ipv6_find_idev+0x102/0x170
[ 2713.827696][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2713.827696][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2713.827696][   T10]      netlink_rcv_skb+0x130/0x360
[ 2713.827696][   T10]      netlink_unicast+0x449/0x710
[ 2713.827696][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2713.827696][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2713.827696][   T10]      ___sys_sendmsg+0xee/0x170
[ 2713.827696][   T10]      __sys_sendmsg+0xcd/0x170
[ 2713.827696][   T10]      do_syscall_64+0xc6/0x1e0
[ 2713.827696][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2713.827696][   T10] 
[ 2713.829803][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2713.830071][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2713.830071][   T10]      dst_init+0x84/0x4a0
[ 2713.830071][   T10]      dst_alloc+0x97/0x150
[ 2713.830071][   T10]      ip6_dst_alloc+0x23/0x90
[ 2713.830071][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2713.830071][   T10]      ip6_pol_route+0x56f/0x840
[ 2713.830071][   T10]      fib6_rule_lookup+0x456/0x630
[ 2713.830071][   T10]      ip6_route_input+0x59c/0xa50
[ 2713.830071][   T10]      ipv6_rcv+0x397/0x810
[ 2713.830071][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2713.830071][   T10]      process_backlog+0x101/0x620
[ 2713.830071][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2713.830071][   T10]      net_rx_action+0x495/0xbe0
[ 2713.830071][   T10]      __do_softirq+0x1b5/0x7f6
[ 2713.830071][   T10] 
[ 2713.831732][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2713.831732][   T10]      netdev_get_by_index+0x5e/0x80
[ 2713.831732][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2713.831732][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2713.831732][   T10]      ip6_route_add+0x1c/0x140
[ 2713.831732][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2713.831732][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2713.831732][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2713.831732][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2713.831732][   T10]      netlink_rcv_skb+0x130/0x360
[ 2713.831732][   T10]      netlink_unicast+0x449/0x710
[ 2713.831732][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2713.831732][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2713.831732][   T10]      ___sys_sendmsg+0xee/0x170
[ 2713.831732][   T10]      __sys_sendmsg+0xcd/0x170
[ 2713.831732][   T10]      do_syscall_64+0xc6/0x1e0
[ 2713.831732][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2713.831732][   T10] 
[ 2713.833767][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2713.833767][   T10]      netdev_get_by_index+0x5e/0x80
[ 2713.833767][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2713.833767][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2713.833767][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2713.833767][   T10]      ipv6_add_addr+0x411/0x2000
[ 2713.833767][   T10]      inet6_addr_add+0x30e/0xa40
[ 2713.833767][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2713.833767][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2713.833767][   T10]      netlink_rcv_skb+0x130/0x360
[ 2713.833767][   T10]      netlink_unicast+0x449/0x710
[ 2713.833767][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2713.833767][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2713.833767][   T10]      ___sys_sendmsg+0xee/0x170
[ 2713.833767][   T10]      __sys_sendmsg+0xcd/0x170
[ 2713.833767][   T10]      do_syscall_64+0xc6/0x1e0
[ 2713.833767][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2713.833767][   T10] 
[ 2713.835789][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2713.835789][   T10]      netdev_get_by_index+0x5e/0x80
[ 2713.835789][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2713.835789][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2713.835789][   T10]      ip6_route_add+0x1c/0x140
[ 2713.835789][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2713.835789][   T10]      addrconf_add_dev+0xe2/0x170
[ 2713.835789][   T10]      inet6_addr_add+0x12f/0xa40
[ 2713.835789][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2713.835789][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2713.835789][   T10]      netlink_rcv_skb+0x130/0x360
[ 2713.835789][   T10]      netlink_unicast+0x449/0x710
[ 2713.835789][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2713.835789][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2713.835789][   T10]      ___sys_sendmsg+0xee/0x170
[ 2713.835789][   T10]      __sys_sendmsg+0xcd/0x170
[ 2713.835789][   T10]      do_syscall_64+0xc6/0x1e0
[ 2713.835789][   T10] 
[ 2713.837769][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2713.837769][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2713.837769][   T10]      ipv6_find_idev+0x102/0x170
[ 2713.837769][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2713.837769][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2713.837769][   T10]      netlink_rcv_skb+0x130/0x360
[ 2713.837769][   T10]      netlink_unicast+0x449/0x710
[ 2713.837769][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2713.837769][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2713.837769][   T10]      ___sys_sendmsg+0xee/0x170
[ 2713.837769][   T10]      __sys_sendmsg+0xcd/0x170
[ 2713.837769][   T10]      do_syscall_64+0xc6/0x1e0
[ 2713.837769][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2713.837769][   T10] 
[ 2713.839327][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2713.839327][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2713.839327][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2713.839327][   T10]      ipv6_find_idev+0x102/0x170
[ 2713.839327][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2713.839327][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2713.839327][   T10]      netlink_rcv_skb+0x130/0x360
[ 2713.839327][   T10]      netlink_unicast+0x449/0x710
[ 2713.839327][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2713.839327][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2713.839327][   T10]      ___sys_sendmsg+0xee/0x170
[ 2713.839327][   T10]      __sys_sendmsg+0xcd/0x170
[ 2713.839327][   T10]      do_syscall_64+0xc6/0x1e0
[ 2713.839327][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2713.839327][   T10] 
[ 2723.841860][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2723.842353][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2723.842353][   T10]      dst_init+0x84/0x4a0
[ 2723.842353][   T10]      dst_alloc+0x97/0x150
[ 2723.842353][   T10]      ip6_dst_alloc+0x23/0x90
[ 2723.842353][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2723.842353][   T10]      ip6_pol_route+0x56f/0x840
[ 2723.842353][   T10]      fib6_rule_lookup+0x456/0x630
[ 2723.842353][   T10]      ip6_route_input+0x59c/0xa50
[ 2723.842353][   T10]      ipv6_rcv+0x397/0x810
[ 2723.842353][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2723.842353][   T10]      process_backlog+0x101/0x620
[ 2723.842353][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2723.842353][   T10]      net_rx_action+0x495/0xbe0
[ 2723.842353][   T10]      __do_softirq+0x1b5/0x7f6
[ 2723.842353][   T10] 
[ 2723.844480][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2723.844480][   T10]      netdev_get_by_index+0x5e/0x80
[ 2723.844480][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2723.844480][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2723.844480][   T10]      ip6_route_add+0x1c/0x140
[ 2723.844480][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2723.844480][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2723.844480][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2723.844480][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2723.844480][   T10]      netlink_rcv_skb+0x130/0x360
[ 2723.844480][   T10]      netlink_unicast+0x449/0x710
[ 2723.844480][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2723.844480][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2723.844480][   T10]      ___sys_sendmsg+0xee/0x170
[ 2723.844480][   T10]      __sys_sendmsg+0xcd/0x170
[ 2723.844480][   T10]      do_syscall_64+0xc6/0x1e0
[ 2723.844480][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2723.844480][   T10] 
[ 2723.846504][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2723.846504][   T10]      netdev_get_by_index+0x5e/0x80
[ 2723.846504][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2723.846504][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2723.846504][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2723.846504][   T10]      ipv6_add_addr+0x411/0x2000
[ 2723.846504][   T10]      inet6_addr_add+0x30e/0xa40
[ 2723.846504][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2723.846504][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2723.846504][   T10]      netlink_rcv_skb+0x130/0x360
[ 2723.846504][   T10]      netlink_unicast+0x449/0x710
[ 2723.846504][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2723.846504][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2723.846504][   T10]      ___sys_sendmsg+0xee/0x170
[ 2723.846504][   T10]      __sys_sendmsg+0xcd/0x170
[ 2723.846504][   T10]      do_syscall_64+0xc6/0x1e0
[ 2723.846504][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2723.846504][   T10] 
[ 2723.848530][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2723.848530][   T10]      netdev_get_by_index+0x5e/0x80
[ 2723.848530][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2723.848530][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2723.848530][   T10]      ip6_route_add+0x1c/0x140
[ 2723.848530][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2723.848530][   T10]      addrconf_add_dev+0xe2/0x170
[ 2723.848530][   T10]      inet6_addr_add+0x12f/0xa40
[ 2723.848530][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2723.848530][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2723.848530][   T10]      netlink_rcv_skb+0x130/0x360
[ 2723.848530][   T10]      netlink_unicast+0x449/0x710
[ 2723.848530][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2723.848530][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2723.848530][   T10]      ___sys_sendmsg+0xee/0x170
[ 2723.848530][   T10]      __sys_sendmsg+0xcd/0x170
[ 2723.848530][   T10]      do_syscall_64+0xc6/0x1e0
[ 2723.848530][   T10] 
[ 2723.850524][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2723.850524][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2723.850524][   T10]      ipv6_find_idev+0x102/0x170
[ 2723.850524][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2723.850524][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2723.850524][   T10]      netlink_rcv_skb+0x130/0x360
[ 2723.850524][   T10]      netlink_unicast+0x449/0x710
[ 2723.850524][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2723.850524][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2723.850524][   T10]      ___sys_sendmsg+0xee/0x170
[ 2723.850524][   T10]      __sys_sendmsg+0xcd/0x170
[ 2723.850524][   T10]      do_syscall_64+0xc6/0x1e0
[ 2723.850524][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2723.850524][   T10] 
[ 2723.852079][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2723.852079][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2723.852079][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2723.852079][   T10]      ipv6_find_idev+0x102/0x170
[ 2723.852079][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2723.852079][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2723.852079][   T10]      netlink_rcv_skb+0x130/0x360
[ 2723.852079][   T10]      netlink_unicast+0x449/0x710
[ 2723.852079][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2723.852079][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2723.852079][   T10]      ___sys_sendmsg+0xee/0x170
[ 2723.852079][   T10]      __sys_sendmsg+0xcd/0x170
[ 2723.852079][   T10]      do_syscall_64+0xc6/0x1e0
[ 2723.852079][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2723.852079][   T10] 
[ 2723.853809][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2723.854057][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2723.854057][   T10]      dst_init+0x84/0x4a0
[ 2723.854057][   T10]      dst_alloc+0x97/0x150
[ 2723.854057][   T10]      ip6_dst_alloc+0x23/0x90
[ 2723.854057][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2723.854057][   T10]      ip6_pol_route+0x56f/0x840
[ 2723.854057][   T10]      fib6_rule_lookup+0x456/0x630
[ 2723.854057][   T10]      ip6_route_input+0x59c/0xa50
[ 2723.854057][   T10]      ipv6_rcv+0x397/0x810
[ 2723.854057][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2723.854057][   T10]      process_backlog+0x101/0x620
[ 2723.854057][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2723.854057][   T10]      net_rx_action+0x495/0xbe0
[ 2723.854057][   T10]      __do_softirq+0x1b5/0x7f6
[ 2723.854057][   T10] 
[ 2723.855713][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2723.855713][   T10]      netdev_get_by_index+0x5e/0x80
[ 2723.855713][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2723.855713][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2723.855713][   T10]      ip6_route_add+0x1c/0x140
[ 2723.855713][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2723.855713][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2723.855713][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2723.855713][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2723.855713][   T10]      netlink_rcv_skb+0x130/0x360
[ 2723.855713][   T10]      netlink_unicast+0x449/0x710
[ 2723.855713][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2723.855713][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2723.855713][   T10]      ___sys_sendmsg+0xee/0x170
[ 2723.855713][   T10]      __sys_sendmsg+0xcd/0x170
[ 2723.855713][   T10]      do_syscall_64+0xc6/0x1e0
[ 2723.855713][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2723.855713][   T10] 
[ 2723.857729][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2723.857729][   T10]      netdev_get_by_index+0x5e/0x80
[ 2723.857729][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2723.857729][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2723.857729][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2723.857729][   T10]      ipv6_add_addr+0x411/0x2000
[ 2723.857729][   T10]      inet6_addr_add+0x30e/0xa40
[ 2723.857729][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2723.857729][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2723.857729][   T10]      netlink_rcv_skb+0x130/0x360
[ 2723.857729][   T10]      netlink_unicast+0x449/0x710
[ 2723.857729][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2723.857729][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2723.857729][   T10]      ___sys_sendmsg+0xee/0x170
[ 2723.857729][   T10]      __sys_sendmsg+0xcd/0x170
[ 2723.857729][   T10]      do_syscall_64+0xc6/0x1e0
[ 2723.857729][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2723.857729][   T10] 
[ 2723.859748][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2723.859748][   T10]      netdev_get_by_index+0x5e/0x80
[ 2723.859748][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2723.859748][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2723.859748][   T10]      ip6_route_add+0x1c/0x140
[ 2723.859748][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2723.859748][   T10]      addrconf_add_dev+0xe2/0x170
[ 2723.859748][   T10]      inet6_addr_add+0x12f/0xa40
[ 2723.859748][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2723.859748][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2723.859748][   T10]      netlink_rcv_skb+0x130/0x360
[ 2723.859748][   T10]      netlink_unicast+0x449/0x710
[ 2723.859748][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2723.859748][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2723.859748][   T10]      ___sys_sendmsg+0xee/0x170
[ 2723.859748][   T10]      __sys_sendmsg+0xcd/0x170
[ 2723.859748][   T10]      do_syscall_64+0xc6/0x1e0
[ 2723.859748][   T10] 
[ 2723.861725][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2723.861725][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2723.861725][   T10]      ipv6_find_idev+0x102/0x170
[ 2723.861725][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2723.861725][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2723.861725][   T10]      netlink_rcv_skb+0x130/0x360
[ 2723.861725][   T10]      netlink_unicast+0x449/0x710
[ 2723.861725][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2723.861725][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2723.861725][   T10]      ___sys_sendmsg+0xee/0x170
[ 2723.861725][   T10]      __sys_sendmsg+0xcd/0x170
[ 2723.861725][   T10]      do_syscall_64+0xc6/0x1e0
[ 2723.861725][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2723.861725][   T10] 
[ 2723.863274][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2723.863274][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2723.863274][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2723.863274][   T10]      ipv6_find_idev+0x102/0x170
[ 2723.863274][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2723.863274][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2723.863274][   T10]      netlink_rcv_skb+0x130/0x360
[ 2723.863274][   T10]      netlink_unicast+0x449/0x710
[ 2723.863274][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2723.863274][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2723.863274][   T10]      ___sys_sendmsg+0xee/0x170
[ 2723.863274][   T10]      __sys_sendmsg+0xcd/0x170
[ 2723.863274][   T10]      do_syscall_64+0xc6/0x1e0
[ 2723.863274][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2723.863274][   T10] 
[ 2734.105849][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2734.106291][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2734.106291][   T10]      dst_init+0x84/0x4a0
[ 2734.106291][   T10]      dst_alloc+0x97/0x150
[ 2734.106291][   T10]      ip6_dst_alloc+0x23/0x90
[ 2734.106291][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2734.106291][   T10]      ip6_pol_route+0x56f/0x840
[ 2734.106291][   T10]      fib6_rule_lookup+0x456/0x630
[ 2734.106291][   T10]      ip6_route_input+0x59c/0xa50
[ 2734.106291][   T10]      ipv6_rcv+0x397/0x810
[ 2734.106291][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2734.106291][   T10]      process_backlog+0x101/0x620
[ 2734.106291][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2734.106291][   T10]      net_rx_action+0x495/0xbe0
[ 2734.106291][   T10]      __do_softirq+0x1b5/0x7f6
[ 2734.106291][   T10] 
[ 2734.108046][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2734.108046][   T10]      netdev_get_by_index+0x5e/0x80
[ 2734.108046][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2734.108046][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2734.108046][   T10]      ip6_route_add+0x1c/0x140
[ 2734.108046][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2734.108046][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2734.108046][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2734.108046][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2734.108046][   T10]      netlink_rcv_skb+0x130/0x360
[ 2734.108046][   T10]      netlink_unicast+0x449/0x710
[ 2734.108046][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2734.108046][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2734.108046][   T10]      ___sys_sendmsg+0xee/0x170
[ 2734.108046][   T10]      __sys_sendmsg+0xcd/0x170
[ 2734.108046][   T10]      do_syscall_64+0xc6/0x1e0
[ 2734.108046][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2734.108046][   T10] 
[ 2734.110132][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2734.110132][   T10]      netdev_get_by_index+0x5e/0x80
[ 2734.110132][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2734.110132][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2734.110132][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2734.110132][   T10]      ipv6_add_addr+0x411/0x2000
[ 2734.110132][   T10]      inet6_addr_add+0x30e/0xa40
[ 2734.110132][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2734.110132][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2734.110132][   T10]      netlink_rcv_skb+0x130/0x360
[ 2734.110132][   T10]      netlink_unicast+0x449/0x710
[ 2734.110132][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2734.110132][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2734.110132][   T10]      ___sys_sendmsg+0xee/0x170
[ 2734.110132][   T10]      __sys_sendmsg+0xcd/0x170
[ 2734.110132][   T10]      do_syscall_64+0xc6/0x1e0
[ 2734.110132][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2734.110132][   T10] 
[ 2734.112207][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2734.112207][   T10]      netdev_get_by_index+0x5e/0x80
[ 2734.112207][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2734.112207][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2734.112207][   T10]      ip6_route_add+0x1c/0x140
[ 2734.112207][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2734.112207][   T10]      addrconf_add_dev+0xe2/0x170
[ 2734.112207][   T10]      inet6_addr_add+0x12f/0xa40
[ 2734.112207][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2734.112207][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2734.112207][   T10]      netlink_rcv_skb+0x130/0x360
[ 2734.112207][   T10]      netlink_unicast+0x449/0x710
[ 2734.112207][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2734.112207][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2734.112207][   T10]      ___sys_sendmsg+0xee/0x170
[ 2734.112207][   T10]      __sys_sendmsg+0xcd/0x170
[ 2734.112207][   T10]      do_syscall_64+0xc6/0x1e0
[ 2734.112207][   T10] 
[ 2734.114237][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2734.114237][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2734.114237][   T10]      ipv6_find_idev+0x102/0x170
[ 2734.114237][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2734.114237][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2734.114237][   T10]      netlink_rcv_skb+0x130/0x360
[ 2734.114237][   T10]      netlink_unicast+0x449/0x710
[ 2734.114237][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2734.114237][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2734.114237][   T10]      ___sys_sendmsg+0xee/0x170
[ 2734.114237][   T10]      __sys_sendmsg+0xcd/0x170
[ 2734.114237][   T10]      do_syscall_64+0xc6/0x1e0
[ 2734.114237][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2734.114237][   T10] 
[ 2734.115830][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2734.115830][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2734.115830][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2734.115830][   T10]      ipv6_find_idev+0x102/0x170
[ 2734.115830][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2734.115830][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2734.115830][   T10]      netlink_rcv_skb+0x130/0x360
[ 2734.115830][   T10]      netlink_unicast+0x449/0x710
[ 2734.115830][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2734.115830][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2734.115830][   T10]      ___sys_sendmsg+0xee/0x170
[ 2734.115830][   T10]      __sys_sendmsg+0xcd/0x170
[ 2734.115830][   T10]      do_syscall_64+0xc6/0x1e0
[ 2734.115830][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2734.115830][   T10] 
[ 2734.117597][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2734.117862][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2734.117862][   T10]      dst_init+0x84/0x4a0
[ 2734.117862][   T10]      dst_alloc+0x97/0x150
[ 2734.117862][   T10]      ip6_dst_alloc+0x23/0x90
[ 2734.117862][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2734.117862][   T10]      ip6_pol_route+0x56f/0x840
[ 2734.117862][   T10]      fib6_rule_lookup+0x456/0x630
[ 2734.117862][   T10]      ip6_route_input+0x59c/0xa50
[ 2734.117862][   T10]      ipv6_rcv+0x397/0x810
[ 2734.117862][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2734.117862][   T10]      process_backlog+0x101/0x620
[ 2734.117862][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2734.117862][   T10]      net_rx_action+0x495/0xbe0
[ 2734.117862][   T10]      __do_softirq+0x1b5/0x7f6
[ 2734.117862][   T10] 
[ 2734.119569][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2734.119569][   T10]      netdev_get_by_index+0x5e/0x80
[ 2734.119569][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2734.119569][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2734.119569][   T10]      ip6_route_add+0x1c/0x140
[ 2734.119569][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2734.119569][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2734.119569][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2734.119569][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2734.119569][   T10]      netlink_rcv_skb+0x130/0x360
[ 2734.119569][   T10]      netlink_unicast+0x449/0x710
[ 2734.119569][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2734.119569][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2734.119569][   T10]      ___sys_sendmsg+0xee/0x170
[ 2734.119569][   T10]      __sys_sendmsg+0xcd/0x170
[ 2734.119569][   T10]      do_syscall_64+0xc6/0x1e0
[ 2734.119569][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2734.119569][   T10] 
[ 2734.121638][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2734.121638][   T10]      netdev_get_by_index+0x5e/0x80
[ 2734.121638][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2734.121638][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2734.121638][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2734.121638][   T10]      ipv6_add_addr+0x411/0x2000
[ 2734.121638][   T10]      inet6_addr_add+0x30e/0xa40
[ 2734.121638][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2734.121638][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2734.121638][   T10]      netlink_rcv_skb+0x130/0x360
[ 2734.121638][   T10]      netlink_unicast+0x449/0x710
[ 2734.121638][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2734.121638][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2734.121638][   T10]      ___sys_sendmsg+0xee/0x170
[ 2734.121638][   T10]      __sys_sendmsg+0xcd/0x170
[ 2734.121638][   T10]      do_syscall_64+0xc6/0x1e0
[ 2734.121638][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2734.121638][   T10] 
[ 2734.123704][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2734.123704][   T10]      netdev_get_by_index+0x5e/0x80
[ 2734.123704][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2734.123704][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2734.123704][   T10]      ip6_route_add+0x1c/0x140
[ 2734.123704][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2734.123704][   T10]      addrconf_add_dev+0xe2/0x170
[ 2734.123704][   T10]      inet6_addr_add+0x12f/0xa40
[ 2734.123704][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2734.123704][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2734.123704][   T10]      netlink_rcv_skb+0x130/0x360
[ 2734.123704][   T10]      netlink_unicast+0x449/0x710
[ 2734.123704][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2734.123704][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2734.123704][   T10]      ___sys_sendmsg+0xee/0x170
[ 2734.123704][   T10]      __sys_sendmsg+0xcd/0x170
[ 2734.123704][   T10]      do_syscall_64+0xc6/0x1e0
[ 2734.123704][   T10] 
[ 2734.125733][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2734.125733][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2734.125733][   T10]      ipv6_find_idev+0x102/0x170
[ 2734.125733][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2734.125733][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2734.125733][   T10]      netlink_rcv_skb+0x130/0x360
[ 2734.125733][   T10]      netlink_unicast+0x449/0x710
[ 2734.125733][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2734.125733][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2734.125733][   T10]      ___sys_sendmsg+0xee/0x170
[ 2734.125733][   T10]      __sys_sendmsg+0xcd/0x170
[ 2734.125733][   T10]      do_syscall_64+0xc6/0x1e0
[ 2734.125733][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2734.125733][   T10] 
[ 2734.127321][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2734.127321][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2734.127321][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2734.127321][   T10]      ipv6_find_idev+0x102/0x170
[ 2734.127321][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2734.127321][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2734.127321][   T10]      netlink_rcv_skb+0x130/0x360
[ 2734.127321][   T10]      netlink_unicast+0x449/0x710
[ 2734.127321][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2734.127321][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2734.127321][   T10]      ___sys_sendmsg+0xee/0x170
[ 2734.127321][   T10]      __sys_sendmsg+0xcd/0x170
[ 2734.127321][   T10]      do_syscall_64+0xc6/0x1e0
[ 2734.127321][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2734.127321][   T10] 
[ 2744.369894][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2744.370397][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2744.370397][   T10]      dst_init+0x84/0x4a0
[ 2744.370397][   T10]      dst_alloc+0x97/0x150
[ 2744.370397][   T10]      ip6_dst_alloc+0x23/0x90
[ 2744.370397][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2744.370397][   T10]      ip6_pol_route+0x56f/0x840
[ 2744.370397][   T10]      fib6_rule_lookup+0x456/0x630
[ 2744.370397][   T10]      ip6_route_input+0x59c/0xa50
[ 2744.370397][   T10]      ipv6_rcv+0x397/0x810
[ 2744.370397][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2744.370397][   T10]      process_backlog+0x101/0x620
[ 2744.370397][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2744.370397][   T10]      net_rx_action+0x495/0xbe0
[ 2744.370397][   T10]      __do_softirq+0x1b5/0x7f6
[ 2744.370397][   T10] 
[ 2744.372129][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2744.372129][   T10]      netdev_get_by_index+0x5e/0x80
[ 2744.372129][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2744.372129][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2744.372129][   T10]      ip6_route_add+0x1c/0x140
[ 2744.372129][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2744.372129][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2744.372129][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2744.372129][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2744.372129][   T10]      netlink_rcv_skb+0x130/0x360
[ 2744.372129][   T10]      netlink_unicast+0x449/0x710
[ 2744.372129][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2744.372129][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2744.372129][   T10]      ___sys_sendmsg+0xee/0x170
[ 2744.372129][   T10]      __sys_sendmsg+0xcd/0x170
[ 2744.372129][   T10]      do_syscall_64+0xc6/0x1e0
[ 2744.372129][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2744.372129][   T10] 
[ 2744.374220][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2744.374220][   T10]      netdev_get_by_index+0x5e/0x80
[ 2744.374220][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2744.374220][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2744.374220][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2744.374220][   T10]      ipv6_add_addr+0x411/0x2000
[ 2744.374220][   T10]      inet6_addr_add+0x30e/0xa40
[ 2744.374220][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2744.374220][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2744.374220][   T10]      netlink_rcv_skb+0x130/0x360
[ 2744.374220][   T10]      netlink_unicast+0x449/0x710
[ 2744.374220][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2744.374220][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2744.374220][   T10]      ___sys_sendmsg+0xee/0x170
[ 2744.374220][   T10]      __sys_sendmsg+0xcd/0x170
[ 2744.374220][   T10]      do_syscall_64+0xc6/0x1e0
[ 2744.374220][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2744.374220][   T10] 
[ 2744.376289][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2744.376289][   T10]      netdev_get_by_index+0x5e/0x80
[ 2744.376289][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2744.376289][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2744.376289][   T10]      ip6_route_add+0x1c/0x140
[ 2744.376289][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2744.376289][   T10]      addrconf_add_dev+0xe2/0x170
[ 2744.376289][   T10]      inet6_addr_add+0x12f/0xa40
[ 2744.376289][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2744.376289][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2744.376289][   T10]      netlink_rcv_skb+0x130/0x360
[ 2744.376289][   T10]      netlink_unicast+0x449/0x710
[ 2744.376289][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2744.376289][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2744.376289][   T10]      ___sys_sendmsg+0xee/0x170
[ 2744.376289][   T10]      __sys_sendmsg+0xcd/0x170
[ 2744.376289][   T10]      do_syscall_64+0xc6/0x1e0
[ 2744.376289][   T10] 
[ 2744.378319][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2744.378319][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2744.378319][   T10]      ipv6_find_idev+0x102/0x170
[ 2744.378319][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2744.378319][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2744.378319][   T10]      netlink_rcv_skb+0x130/0x360
[ 2744.378319][   T10]      netlink_unicast+0x449/0x710
[ 2744.378319][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2744.378319][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2744.378319][   T10]      ___sys_sendmsg+0xee/0x170
[ 2744.378319][   T10]      __sys_sendmsg+0xcd/0x170
[ 2744.378319][   T10]      do_syscall_64+0xc6/0x1e0
[ 2744.378319][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2744.378319][   T10] 
[ 2744.379929][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2744.379929][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2744.379929][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2744.379929][   T10]      ipv6_find_idev+0x102/0x170
[ 2744.379929][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2744.379929][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2744.379929][   T10]      netlink_rcv_skb+0x130/0x360
[ 2744.379929][   T10]      netlink_unicast+0x449/0x710
[ 2744.379929][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2744.379929][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2744.379929][   T10]      ___sys_sendmsg+0xee/0x170
[ 2744.379929][   T10]      __sys_sendmsg+0xcd/0x170
[ 2744.379929][   T10]      do_syscall_64+0xc6/0x1e0
[ 2744.379929][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2744.379929][   T10] 
[ 2744.381698][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2744.381953][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2744.381953][   T10]      dst_init+0x84/0x4a0
[ 2744.381953][   T10]      dst_alloc+0x97/0x150
[ 2744.381953][   T10]      ip6_dst_alloc+0x23/0x90
[ 2744.381953][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2744.381953][   T10]      ip6_pol_route+0x56f/0x840
[ 2744.381953][   T10]      fib6_rule_lookup+0x456/0x630
[ 2744.381953][   T10]      ip6_route_input+0x59c/0xa50
[ 2744.381953][   T10]      ipv6_rcv+0x397/0x810
[ 2744.381953][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2744.381953][   T10]      process_backlog+0x101/0x620
[ 2744.381953][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2744.381953][   T10]      net_rx_action+0x495/0xbe0
[ 2744.381953][   T10]      __do_softirq+0x1b5/0x7f6
[ 2744.381953][   T10] 
[ 2744.383652][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2744.383652][   T10]      netdev_get_by_index+0x5e/0x80
[ 2744.383652][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2744.383652][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2744.383652][   T10]      ip6_route_add+0x1c/0x140
[ 2744.383652][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2744.383652][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2744.383652][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2744.383652][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2744.383652][   T10]      netlink_rcv_skb+0x130/0x360
[ 2744.383652][   T10]      netlink_unicast+0x449/0x710
[ 2744.383652][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2744.383652][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2744.383652][   T10]      ___sys_sendmsg+0xee/0x170
[ 2744.383652][   T10]      __sys_sendmsg+0xcd/0x170
[ 2744.383652][   T10]      do_syscall_64+0xc6/0x1e0
[ 2744.383652][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2744.383652][   T10] 
[ 2744.385710][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2744.385710][   T10]      netdev_get_by_index+0x5e/0x80
[ 2744.385710][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2744.385710][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2744.385710][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2744.385710][   T10]      ipv6_add_addr+0x411/0x2000
[ 2744.385710][   T10]      inet6_addr_add+0x30e/0xa40
[ 2744.385710][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2744.385710][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2744.385710][   T10]      netlink_rcv_skb+0x130/0x360
[ 2744.385710][   T10]      netlink_unicast+0x449/0x710
[ 2744.385710][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2744.385710][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2744.385710][   T10]      ___sys_sendmsg+0xee/0x170
[ 2744.385710][   T10]      __sys_sendmsg+0xcd/0x170
[ 2744.385710][   T10]      do_syscall_64+0xc6/0x1e0
[ 2744.385710][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2744.385710][   T10] 
[ 2744.387766][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2744.387766][   T10]      netdev_get_by_index+0x5e/0x80
[ 2744.387766][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2744.387766][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2744.387766][   T10]      ip6_route_add+0x1c/0x140
[ 2744.387766][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2744.387766][   T10]      addrconf_add_dev+0xe2/0x170
[ 2744.387766][   T10]      inet6_addr_add+0x12f/0xa40
[ 2744.387766][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2744.387766][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2744.387766][   T10]      netlink_rcv_skb+0x130/0x360
[ 2744.387766][   T10]      netlink_unicast+0x449/0x710
[ 2744.387766][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2744.387766][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2744.387766][   T10]      ___sys_sendmsg+0xee/0x170
[ 2744.387766][   T10]      __sys_sendmsg+0xcd/0x170
[ 2744.387766][   T10]      do_syscall_64+0xc6/0x1e0
[ 2744.387766][   T10] 
[ 2744.389800][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2744.389800][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2744.389800][   T10]      ipv6_find_idev+0x102/0x170
[ 2744.389800][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2744.389800][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2744.389800][   T10]      netlink_rcv_skb+0x130/0x360
[ 2744.389800][   T10]      netlink_unicast+0x449/0x710
[ 2744.389800][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2744.389800][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2744.389800][   T10]      ___sys_sendmsg+0xee/0x170
[ 2744.389800][   T10]      __sys_sendmsg+0xcd/0x170
[ 2744.389800][   T10]      do_syscall_64+0xc6/0x1e0
[ 2744.389800][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2744.389800][   T10] 
[ 2744.391384][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2744.391384][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2744.391384][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2744.391384][   T10]      ipv6_find_idev+0x102/0x170
[ 2744.391384][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2744.391384][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2744.391384][   T10]      netlink_rcv_skb+0x130/0x360
[ 2744.391384][   T10]      netlink_unicast+0x449/0x710
[ 2744.391384][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2744.391384][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2744.391384][   T10]      ___sys_sendmsg+0xee/0x170
[ 2744.391384][   T10]      __sys_sendmsg+0xcd/0x170
[ 2744.391384][   T10]      do_syscall_64+0xc6/0x1e0
[ 2744.391384][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2744.391384][   T10] 
[ 2754.633869][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2754.634366][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2754.634366][   T10]      dst_init+0x84/0x4a0
[ 2754.634366][   T10]      dst_alloc+0x97/0x150
[ 2754.634366][   T10]      ip6_dst_alloc+0x23/0x90
[ 2754.634366][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2754.634366][   T10]      ip6_pol_route+0x56f/0x840
[ 2754.634366][   T10]      fib6_rule_lookup+0x456/0x630
[ 2754.634366][   T10]      ip6_route_input+0x59c/0xa50
[ 2754.634366][   T10]      ipv6_rcv+0x397/0x810
[ 2754.634366][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2754.634366][   T10]      process_backlog+0x101/0x620
[ 2754.634366][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2754.634366][   T10]      net_rx_action+0x495/0xbe0
[ 2754.634366][   T10]      __do_softirq+0x1b5/0x7f6
[ 2754.634366][   T10] 
[ 2754.636094][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2754.636094][   T10]      netdev_get_by_index+0x5e/0x80
[ 2754.636094][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2754.636094][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2754.636094][   T10]      ip6_route_add+0x1c/0x140
[ 2754.636094][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2754.636094][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2754.636094][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2754.636094][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2754.636094][   T10]      netlink_rcv_skb+0x130/0x360
[ 2754.636094][   T10]      netlink_unicast+0x449/0x710
[ 2754.636094][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2754.636094][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2754.636094][   T10]      ___sys_sendmsg+0xee/0x170
[ 2754.636094][   T10]      __sys_sendmsg+0xcd/0x170
[ 2754.636094][   T10]      do_syscall_64+0xc6/0x1e0
[ 2754.636094][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2754.636094][   T10] 
[ 2754.638174][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2754.638174][   T10]      netdev_get_by_index+0x5e/0x80
[ 2754.638174][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2754.638174][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2754.638174][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2754.638174][   T10]      ipv6_add_addr+0x411/0x2000
[ 2754.638174][   T10]      inet6_addr_add+0x30e/0xa40
[ 2754.638174][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2754.638174][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2754.638174][   T10]      netlink_rcv_skb+0x130/0x360
[ 2754.638174][   T10]      netlink_unicast+0x449/0x710
[ 2754.638174][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2754.638174][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2754.638174][   T10]      ___sys_sendmsg+0xee/0x170
[ 2754.638174][   T10]      __sys_sendmsg+0xcd/0x170
[ 2754.638174][   T10]      do_syscall_64+0xc6/0x1e0
[ 2754.638174][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2754.638174][   T10] 
[ 2754.640241][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2754.640241][   T10]      netdev_get_by_index+0x5e/0x80
[ 2754.640241][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2754.640241][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2754.640241][   T10]      ip6_route_add+0x1c/0x140
[ 2754.640241][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2754.640241][   T10]      addrconf_add_dev+0xe2/0x170
[ 2754.640241][   T10]      inet6_addr_add+0x12f/0xa40
[ 2754.640241][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2754.640241][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2754.640241][   T10]      netlink_rcv_skb+0x130/0x360
[ 2754.640241][   T10]      netlink_unicast+0x449/0x710
[ 2754.640241][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2754.640241][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2754.640241][   T10]      ___sys_sendmsg+0xee/0x170
[ 2754.640241][   T10]      __sys_sendmsg+0xcd/0x170
[ 2754.640241][   T10]      do_syscall_64+0xc6/0x1e0
[ 2754.640241][   T10] 
[ 2754.642254][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2754.642254][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2754.642254][   T10]      ipv6_find_idev+0x102/0x170
[ 2754.642254][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2754.642254][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2754.642254][   T10]      netlink_rcv_skb+0x130/0x360
[ 2754.642254][   T10]      netlink_unicast+0x449/0x710
[ 2754.642254][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2754.642254][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2754.642254][   T10]      ___sys_sendmsg+0xee/0x170
[ 2754.642254][   T10]      __sys_sendmsg+0xcd/0x170
[ 2754.642254][   T10]      do_syscall_64+0xc6/0x1e0
[ 2754.642254][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2754.642254][   T10] 
[ 2754.643831][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2754.643831][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2754.643831][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2754.643831][   T10]      ipv6_find_idev+0x102/0x170
[ 2754.643831][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2754.643831][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2754.643831][   T10]      netlink_rcv_skb+0x130/0x360
[ 2754.643831][   T10]      netlink_unicast+0x449/0x710
[ 2754.643831][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2754.643831][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2754.643831][   T10]      ___sys_sendmsg+0xee/0x170
[ 2754.643831][   T10]      __sys_sendmsg+0xcd/0x170
[ 2754.643831][   T10]      do_syscall_64+0xc6/0x1e0
[ 2754.643831][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2754.643831][   T10] 
[ 2754.645568][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2754.645827][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2754.645827][   T10]      dst_init+0x84/0x4a0
[ 2754.645827][   T10]      dst_alloc+0x97/0x150
[ 2754.645827][   T10]      ip6_dst_alloc+0x23/0x90
[ 2754.645827][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2754.645827][   T10]      ip6_pol_route+0x56f/0x840
[ 2754.645827][   T10]      fib6_rule_lookup+0x456/0x630
[ 2754.645827][   T10]      ip6_route_input+0x59c/0xa50
[ 2754.645827][   T10]      ipv6_rcv+0x397/0x810
[ 2754.645827][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2754.645827][   T10]      process_backlog+0x101/0x620
[ 2754.645827][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2754.645827][   T10]      net_rx_action+0x495/0xbe0
[ 2754.645827][   T10]      __do_softirq+0x1b5/0x7f6
[ 2754.645827][   T10] 
[ 2754.647508][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2754.647508][   T10]      netdev_get_by_index+0x5e/0x80
[ 2754.647508][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2754.647508][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2754.647508][   T10]      ip6_route_add+0x1c/0x140
[ 2754.647508][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2754.647508][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2754.647508][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2754.647508][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2754.647508][   T10]      netlink_rcv_skb+0x130/0x360
[ 2754.647508][   T10]      netlink_unicast+0x449/0x710
[ 2754.647508][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2754.647508][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2754.647508][   T10]      ___sys_sendmsg+0xee/0x170
[ 2754.647508][   T10]      __sys_sendmsg+0xcd/0x170
[ 2754.647508][   T10]      do_syscall_64+0xc6/0x1e0
[ 2754.647508][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2754.647508][   T10] 
[ 2754.649562][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2754.649562][   T10]      netdev_get_by_index+0x5e/0x80
[ 2754.649562][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2754.649562][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2754.649562][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2754.649562][   T10]      ipv6_add_addr+0x411/0x2000
[ 2754.649562][   T10]      inet6_addr_add+0x30e/0xa40
[ 2754.649562][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2754.649562][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2754.649562][   T10]      netlink_rcv_skb+0x130/0x360
[ 2754.649562][   T10]      netlink_unicast+0x449/0x710
[ 2754.649562][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2754.649562][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2754.649562][   T10]      ___sys_sendmsg+0xee/0x170
[ 2754.649562][   T10]      __sys_sendmsg+0xcd/0x170
[ 2754.649562][   T10]      do_syscall_64+0xc6/0x1e0
[ 2754.649562][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2754.649562][   T10] 
[ 2754.651615][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2754.651615][   T10]      netdev_get_by_index+0x5e/0x80
[ 2754.651615][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2754.651615][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2754.651615][   T10]      ip6_route_add+0x1c/0x140
[ 2754.651615][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2754.651615][   T10]      addrconf_add_dev+0xe2/0x170
[ 2754.651615][   T10]      inet6_addr_add+0x12f/0xa40
[ 2754.651615][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2754.651615][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2754.651615][   T10]      netlink_rcv_skb+0x130/0x360
[ 2754.651615][   T10]      netlink_unicast+0x449/0x710
[ 2754.651615][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2754.651615][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2754.651615][   T10]      ___sys_sendmsg+0xee/0x170
[ 2754.651615][   T10]      __sys_sendmsg+0xcd/0x170
[ 2754.651615][   T10]      do_syscall_64+0xc6/0x1e0
[ 2754.651615][   T10] 
[ 2754.653618][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2754.653618][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2754.653618][   T10]      ipv6_find_idev+0x102/0x170
[ 2754.653618][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2754.653618][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2754.653618][   T10]      netlink_rcv_skb+0x130/0x360
[ 2754.653618][   T10]      netlink_unicast+0x449/0x710
[ 2754.653618][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2754.653618][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2754.653618][   T10]      ___sys_sendmsg+0xee/0x170
[ 2754.653618][   T10]      __sys_sendmsg+0xcd/0x170
[ 2754.653618][   T10]      do_syscall_64+0xc6/0x1e0
[ 2754.653618][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2754.653618][   T10] 
[ 2754.655193][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2754.655193][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2754.655193][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2754.655193][   T10]      ipv6_find_idev+0x102/0x170
[ 2754.655193][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2754.655193][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2754.655193][   T10]      netlink_rcv_skb+0x130/0x360
[ 2754.655193][   T10]      netlink_unicast+0x449/0x710
[ 2754.655193][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2754.655193][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2754.655193][   T10]      ___sys_sendmsg+0xee/0x170
[ 2754.655193][   T10]      __sys_sendmsg+0xcd/0x170
[ 2754.655193][   T10]      do_syscall_64+0xc6/0x1e0
[ 2754.655193][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2754.655193][   T10] 
[ 2764.897830][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2764.898309][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2764.898309][   T10]      dst_init+0x84/0x4a0
[ 2764.898309][   T10]      dst_alloc+0x97/0x150
[ 2764.898309][   T10]      ip6_dst_alloc+0x23/0x90
[ 2764.898309][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2764.898309][   T10]      ip6_pol_route+0x56f/0x840
[ 2764.898309][   T10]      fib6_rule_lookup+0x456/0x630
[ 2764.898309][   T10]      ip6_route_input+0x59c/0xa50
[ 2764.898309][   T10]      ipv6_rcv+0x397/0x810
[ 2764.898309][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2764.898309][   T10]      process_backlog+0x101/0x620
[ 2764.898309][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2764.898309][   T10]      net_rx_action+0x495/0xbe0
[ 2764.898309][   T10]      __do_softirq+0x1b5/0x7f6
[ 2764.898309][   T10] 
[ 2764.900045][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2764.900045][   T10]      netdev_get_by_index+0x5e/0x80
[ 2764.900045][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2764.900045][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2764.900045][   T10]      ip6_route_add+0x1c/0x140
[ 2764.900045][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2764.900045][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2764.900045][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2764.900045][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2764.900045][   T10]      netlink_rcv_skb+0x130/0x360
[ 2764.900045][   T10]      netlink_unicast+0x449/0x710
[ 2764.900045][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2764.900045][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2764.900045][   T10]      ___sys_sendmsg+0xee/0x170
[ 2764.900045][   T10]      __sys_sendmsg+0xcd/0x170
[ 2764.900045][   T10]      do_syscall_64+0xc6/0x1e0
[ 2764.900045][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2764.900045][   T10] 
[ 2764.902103][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2764.902103][   T10]      netdev_get_by_index+0x5e/0x80
[ 2764.902103][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2764.902103][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2764.902103][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2764.902103][   T10]      ipv6_add_addr+0x411/0x2000
[ 2764.902103][   T10]      inet6_addr_add+0x30e/0xa40
[ 2764.902103][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2764.902103][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2764.902103][   T10]      netlink_rcv_skb+0x130/0x360
[ 2764.902103][   T10]      netlink_unicast+0x449/0x710
[ 2764.902103][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2764.902103][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2764.902103][   T10]      ___sys_sendmsg+0xee/0x170
[ 2764.902103][   T10]      __sys_sendmsg+0xcd/0x170
[ 2764.902103][   T10]      do_syscall_64+0xc6/0x1e0
[ 2764.902103][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2764.902103][   T10] 
[ 2764.904170][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2764.904170][   T10]      netdev_get_by_index+0x5e/0x80
[ 2764.904170][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2764.904170][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2764.904170][   T10]      ip6_route_add+0x1c/0x140
[ 2764.904170][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2764.904170][   T10]      addrconf_add_dev+0xe2/0x170
[ 2764.904170][   T10]      inet6_addr_add+0x12f/0xa40
[ 2764.904170][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2764.904170][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2764.904170][   T10]      netlink_rcv_skb+0x130/0x360
[ 2764.904170][   T10]      netlink_unicast+0x449/0x710
[ 2764.904170][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2764.904170][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2764.904170][   T10]      ___sys_sendmsg+0xee/0x170
[ 2764.904170][   T10]      __sys_sendmsg+0xcd/0x170
[ 2764.904170][   T10]      do_syscall_64+0xc6/0x1e0
[ 2764.904170][   T10] 
[ 2764.906185][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2764.906185][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2764.906185][   T10]      ipv6_find_idev+0x102/0x170
[ 2764.906185][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2764.906185][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2764.906185][   T10]      netlink_rcv_skb+0x130/0x360
[ 2764.906185][   T10]      netlink_unicast+0x449/0x710
[ 2764.906185][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2764.906185][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2764.906185][   T10]      ___sys_sendmsg+0xee/0x170
[ 2764.906185][   T10]      __sys_sendmsg+0xcd/0x170
[ 2764.906185][   T10]      do_syscall_64+0xc6/0x1e0
[ 2764.906185][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2764.906185][   T10] 
[ 2764.907766][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2764.907766][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2764.907766][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2764.907766][   T10]      ipv6_find_idev+0x102/0x170
[ 2764.907766][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2764.907766][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2764.907766][   T10]      netlink_rcv_skb+0x130/0x360
[ 2764.907766][   T10]      netlink_unicast+0x449/0x710
[ 2764.907766][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2764.907766][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2764.907766][   T10]      ___sys_sendmsg+0xee/0x170
[ 2764.907766][   T10]      __sys_sendmsg+0xcd/0x170
[ 2764.907766][   T10]      do_syscall_64+0xc6/0x1e0
[ 2764.907766][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2764.907766][   T10] 
[ 2764.909507][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2764.909766][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2764.909766][   T10]      dst_init+0x84/0x4a0
[ 2764.909766][   T10]      dst_alloc+0x97/0x150
[ 2764.909766][   T10]      ip6_dst_alloc+0x23/0x90
[ 2764.909766][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2764.909766][   T10]      ip6_pol_route+0x56f/0x840
[ 2764.909766][   T10]      fib6_rule_lookup+0x456/0x630
[ 2764.909766][   T10]      ip6_route_input+0x59c/0xa50
[ 2764.909766][   T10]      ipv6_rcv+0x397/0x810
[ 2764.909766][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2764.909766][   T10]      process_backlog+0x101/0x620
[ 2764.909766][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2764.909766][   T10]      net_rx_action+0x495/0xbe0
[ 2764.909766][   T10]      __do_softirq+0x1b5/0x7f6
[ 2764.909766][   T10] 
[ 2764.911449][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2764.911449][   T10]      netdev_get_by_index+0x5e/0x80
[ 2764.911449][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2764.911449][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2764.911449][   T10]      ip6_route_add+0x1c/0x140
[ 2764.911449][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2764.911449][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2764.911449][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2764.911449][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2764.911449][   T10]      netlink_rcv_skb+0x130/0x360
[ 2764.911449][   T10]      netlink_unicast+0x449/0x710
[ 2764.911449][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2764.911449][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2764.911449][   T10]      ___sys_sendmsg+0xee/0x170
[ 2764.911449][   T10]      __sys_sendmsg+0xcd/0x170
[ 2764.911449][   T10]      do_syscall_64+0xc6/0x1e0
[ 2764.911449][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2764.911449][   T10] 
[ 2764.913505][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2764.913505][   T10]      netdev_get_by_index+0x5e/0x80
[ 2764.913505][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2764.913505][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2764.913505][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2764.913505][   T10]      ipv6_add_addr+0x411/0x2000
[ 2764.913505][   T10]      inet6_addr_add+0x30e/0xa40
[ 2764.913505][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2764.913505][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2764.913505][   T10]      netlink_rcv_skb+0x130/0x360
[ 2764.913505][   T10]      netlink_unicast+0x449/0x710
[ 2764.913505][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2764.913505][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2764.913505][   T10]      ___sys_sendmsg+0xee/0x170
[ 2764.913505][   T10]      __sys_sendmsg+0xcd/0x170
[ 2764.913505][   T10]      do_syscall_64+0xc6/0x1e0
[ 2764.913505][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2764.913505][   T10] 
[ 2764.915545][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2764.915545][   T10]      netdev_get_by_index+0x5e/0x80
[ 2764.915545][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2764.915545][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2764.915545][   T10]      ip6_route_add+0x1c/0x140
[ 2764.915545][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2764.915545][   T10]      addrconf_add_dev+0xe2/0x170
[ 2764.915545][   T10]      inet6_addr_add+0x12f/0xa40
[ 2764.915545][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2764.915545][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2764.915545][   T10]      netlink_rcv_skb+0x130/0x360
[ 2764.915545][   T10]      netlink_unicast+0x449/0x710
[ 2764.915545][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2764.915545][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2764.915545][   T10]      ___sys_sendmsg+0xee/0x170
[ 2764.915545][   T10]      __sys_sendmsg+0xcd/0x170
[ 2764.915545][   T10]      do_syscall_64+0xc6/0x1e0
[ 2764.915545][   T10] 
[ 2764.917551][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2764.917551][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2764.917551][   T10]      ipv6_find_idev+0x102/0x170
[ 2764.917551][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2764.917551][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2764.917551][   T10]      netlink_rcv_skb+0x130/0x360
[ 2764.917551][   T10]      netlink_unicast+0x449/0x710
[ 2764.917551][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2764.917551][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2764.917551][   T10]      ___sys_sendmsg+0xee/0x170
[ 2764.917551][   T10]      __sys_sendmsg+0xcd/0x170
[ 2764.917551][   T10]      do_syscall_64+0xc6/0x1e0
[ 2764.917551][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2764.917551][   T10] 
[ 2764.919125][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2764.919125][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2764.919125][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2764.919125][   T10]      ipv6_find_idev+0x102/0x170
[ 2764.919125][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2764.919125][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2764.919125][   T10]      netlink_rcv_skb+0x130/0x360
[ 2764.919125][   T10]      netlink_unicast+0x449/0x710
[ 2764.919125][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2764.919125][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2764.919125][   T10]      ___sys_sendmsg+0xee/0x170
[ 2764.919125][   T10]      __sys_sendmsg+0xcd/0x170
[ 2764.919125][   T10]      do_syscall_64+0xc6/0x1e0
[ 2764.919125][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2764.919125][   T10] 
[ 2775.161836][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2775.162329][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2775.162329][   T10]      dst_init+0x84/0x4a0
[ 2775.162329][   T10]      dst_alloc+0x97/0x150
[ 2775.162329][   T10]      ip6_dst_alloc+0x23/0x90
[ 2775.162329][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2775.162329][   T10]      ip6_pol_route+0x56f/0x840
[ 2775.162329][   T10]      fib6_rule_lookup+0x456/0x630
[ 2775.162329][   T10]      ip6_route_input+0x59c/0xa50
[ 2775.162329][   T10]      ipv6_rcv+0x397/0x810
[ 2775.162329][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2775.162329][   T10]      process_backlog+0x101/0x620
[ 2775.162329][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2775.162329][   T10]      net_rx_action+0x495/0xbe0
[ 2775.162329][   T10]      __do_softirq+0x1b5/0x7f6
[ 2775.162329][   T10] 
[ 2775.164058][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2775.164058][   T10]      netdev_get_by_index+0x5e/0x80
[ 2775.164058][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2775.164058][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2775.164058][   T10]      ip6_route_add+0x1c/0x140
[ 2775.164058][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2775.164058][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2775.164058][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2775.164058][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2775.164058][   T10]      netlink_rcv_skb+0x130/0x360
[ 2775.164058][   T10]      netlink_unicast+0x449/0x710
[ 2775.164058][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2775.164058][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2775.164058][   T10]      ___sys_sendmsg+0xee/0x170
[ 2775.164058][   T10]      __sys_sendmsg+0xcd/0x170
[ 2775.164058][   T10]      do_syscall_64+0xc6/0x1e0
[ 2775.164058][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2775.164058][   T10] 
[ 2775.166111][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2775.166111][   T10]      netdev_get_by_index+0x5e/0x80
[ 2775.166111][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2775.166111][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2775.166111][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2775.166111][   T10]      ipv6_add_addr+0x411/0x2000
[ 2775.166111][   T10]      inet6_addr_add+0x30e/0xa40
[ 2775.166111][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2775.166111][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2775.166111][   T10]      netlink_rcv_skb+0x130/0x360
[ 2775.166111][   T10]      netlink_unicast+0x449/0x710
[ 2775.166111][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2775.166111][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2775.166111][   T10]      ___sys_sendmsg+0xee/0x170
[ 2775.166111][   T10]      __sys_sendmsg+0xcd/0x170
[ 2775.166111][   T10]      do_syscall_64+0xc6/0x1e0
[ 2775.166111][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2775.166111][   T10] 
[ 2775.168170][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2775.168170][   T10]      netdev_get_by_index+0x5e/0x80
[ 2775.168170][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2775.168170][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2775.168170][   T10]      ip6_route_add+0x1c/0x140
[ 2775.168170][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2775.168170][   T10]      addrconf_add_dev+0xe2/0x170
[ 2775.168170][   T10]      inet6_addr_add+0x12f/0xa40
[ 2775.168170][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2775.168170][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2775.168170][   T10]      netlink_rcv_skb+0x130/0x360
[ 2775.168170][   T10]      netlink_unicast+0x449/0x710
[ 2775.168170][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2775.168170][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2775.168170][   T10]      ___sys_sendmsg+0xee/0x170
[ 2775.168170][   T10]      __sys_sendmsg+0xcd/0x170
[ 2775.168170][   T10]      do_syscall_64+0xc6/0x1e0
[ 2775.168170][   T10] 
[ 2775.170197][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2775.170197][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2775.170197][   T10]      ipv6_find_idev+0x102/0x170
[ 2775.170197][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2775.170197][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2775.170197][   T10]      netlink_rcv_skb+0x130/0x360
[ 2775.170197][   T10]      netlink_unicast+0x449/0x710
[ 2775.170197][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2775.170197][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2775.170197][   T10]      ___sys_sendmsg+0xee/0x170
[ 2775.170197][   T10]      __sys_sendmsg+0xcd/0x170
[ 2775.170197][   T10]      do_syscall_64+0xc6/0x1e0
[ 2775.170197][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2775.170197][   T10] 
[ 2775.171775][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2775.171775][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2775.171775][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2775.171775][   T10]      ipv6_find_idev+0x102/0x170
[ 2775.171775][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2775.171775][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2775.171775][   T10]      netlink_rcv_skb+0x130/0x360
[ 2775.171775][   T10]      netlink_unicast+0x449/0x710
[ 2775.171775][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2775.171775][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2775.171775][   T10]      ___sys_sendmsg+0xee/0x170
[ 2775.171775][   T10]      __sys_sendmsg+0xcd/0x170
[ 2775.171775][   T10]      do_syscall_64+0xc6/0x1e0
[ 2775.171775][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2775.171775][   T10] 
[ 2775.173519][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2775.173787][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2775.173787][   T10]      dst_init+0x84/0x4a0
[ 2775.173787][   T10]      dst_alloc+0x97/0x150
[ 2775.173787][   T10]      ip6_dst_alloc+0x23/0x90
[ 2775.173787][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2775.173787][   T10]      ip6_pol_route+0x56f/0x840
[ 2775.173787][   T10]      fib6_rule_lookup+0x456/0x630
[ 2775.173787][   T10]      ip6_route_input+0x59c/0xa50
[ 2775.173787][   T10]      ipv6_rcv+0x397/0x810
[ 2775.173787][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2775.173787][   T10]      process_backlog+0x101/0x620
[ 2775.173787][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2775.173787][   T10]      net_rx_action+0x495/0xbe0
[ 2775.173787][   T10]      __do_softirq+0x1b5/0x7f6
[ 2775.173787][   T10] 
[ 2775.175470][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2775.175470][   T10]      netdev_get_by_index+0x5e/0x80
[ 2775.175470][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2775.175470][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2775.175470][   T10]      ip6_route_add+0x1c/0x140
[ 2775.175470][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2775.175470][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2775.175470][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2775.175470][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2775.175470][   T10]      netlink_rcv_skb+0x130/0x360
[ 2775.175470][   T10]      netlink_unicast+0x449/0x710
[ 2775.175470][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2775.175470][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2775.175470][   T10]      ___sys_sendmsg+0xee/0x170
[ 2775.175470][   T10]      __sys_sendmsg+0xcd/0x170
[ 2775.175470][   T10]      do_syscall_64+0xc6/0x1e0
[ 2775.175470][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2775.175470][   T10] 
[ 2775.177547][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2775.177547][   T10]      netdev_get_by_index+0x5e/0x80
[ 2775.177547][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2775.177547][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2775.177547][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2775.177547][   T10]      ipv6_add_addr+0x411/0x2000
[ 2775.177547][   T10]      inet6_addr_add+0x30e/0xa40
[ 2775.177547][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2775.177547][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2775.177547][   T10]      netlink_rcv_skb+0x130/0x360
[ 2775.177547][   T10]      netlink_unicast+0x449/0x710
[ 2775.177547][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2775.177547][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2775.177547][   T10]      ___sys_sendmsg+0xee/0x170
[ 2775.177547][   T10]      __sys_sendmsg+0xcd/0x170
[ 2775.177547][   T10]      do_syscall_64+0xc6/0x1e0
[ 2775.177547][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2775.177547][   T10] 
[ 2775.179604][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2775.179604][   T10]      netdev_get_by_index+0x5e/0x80
[ 2775.179604][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2775.179604][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2775.179604][   T10]      ip6_route_add+0x1c/0x140
[ 2775.179604][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2775.179604][   T10]      addrconf_add_dev+0xe2/0x170
[ 2775.179604][   T10]      inet6_addr_add+0x12f/0xa40
[ 2775.179604][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2775.179604][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2775.179604][   T10]      netlink_rcv_skb+0x130/0x360
[ 2775.179604][   T10]      netlink_unicast+0x449/0x710
[ 2775.179604][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2775.179604][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2775.179604][   T10]      ___sys_sendmsg+0xee/0x170
[ 2775.179604][   T10]      __sys_sendmsg+0xcd/0x170
[ 2775.179604][   T10]      do_syscall_64+0xc6/0x1e0
[ 2775.179604][   T10] 
[ 2775.181620][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2775.181620][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2775.181620][   T10]      ipv6_find_idev+0x102/0x170
[ 2775.181620][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2775.181620][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2775.181620][   T10]      netlink_rcv_skb+0x130/0x360
[ 2775.181620][   T10]      netlink_unicast+0x449/0x710
[ 2775.181620][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2775.181620][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2775.181620][   T10]      ___sys_sendmsg+0xee/0x170
[ 2775.181620][   T10]      __sys_sendmsg+0xcd/0x170
[ 2775.181620][   T10]      do_syscall_64+0xc6/0x1e0
[ 2775.181620][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2775.181620][   T10] 
[ 2775.183211][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2775.183211][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2775.183211][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2775.183211][   T10]      ipv6_find_idev+0x102/0x170
[ 2775.183211][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2775.183211][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2775.183211][   T10]      netlink_rcv_skb+0x130/0x360
[ 2775.183211][   T10]      netlink_unicast+0x449/0x710
[ 2775.183211][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2775.183211][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2775.183211][   T10]      ___sys_sendmsg+0xee/0x170
[ 2775.183211][   T10]      __sys_sendmsg+0xcd/0x170
[ 2775.183211][   T10]      do_syscall_64+0xc6/0x1e0
[ 2775.183211][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2775.183211][   T10] 
[ 2785.241867][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2785.242367][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2785.242367][   T10]      dst_init+0x84/0x4a0
[ 2785.242367][   T10]      dst_alloc+0x97/0x150
[ 2785.242367][   T10]      ip6_dst_alloc+0x23/0x90
[ 2785.242367][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2785.242367][   T10]      ip6_pol_route+0x56f/0x840
[ 2785.242367][   T10]      fib6_rule_lookup+0x456/0x630
[ 2785.242367][   T10]      ip6_route_input+0x59c/0xa50
[ 2785.242367][   T10]      ipv6_rcv+0x397/0x810
[ 2785.242367][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2785.242367][   T10]      process_backlog+0x101/0x620
[ 2785.242367][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2785.242367][   T10]      net_rx_action+0x495/0xbe0
[ 2785.242367][   T10]      __do_softirq+0x1b5/0x7f6
[ 2785.242367][   T10] 
[ 2785.244105][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2785.244105][   T10]      netdev_get_by_index+0x5e/0x80
[ 2785.244105][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2785.244105][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2785.244105][   T10]      ip6_route_add+0x1c/0x140
[ 2785.244105][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2785.244105][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2785.244105][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2785.244105][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2785.244105][   T10]      netlink_rcv_skb+0x130/0x360
[ 2785.244105][   T10]      netlink_unicast+0x449/0x710
[ 2785.244105][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2785.244105][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2785.244105][   T10]      ___sys_sendmsg+0xee/0x170
[ 2785.244105][   T10]      __sys_sendmsg+0xcd/0x170
[ 2785.244105][   T10]      do_syscall_64+0xc6/0x1e0
[ 2785.244105][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2785.244105][   T10] 
[ 2785.246180][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2785.246180][   T10]      netdev_get_by_index+0x5e/0x80
[ 2785.246180][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2785.246180][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2785.246180][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2785.246180][   T10]      ipv6_add_addr+0x411/0x2000
[ 2785.246180][   T10]      inet6_addr_add+0x30e/0xa40
[ 2785.246180][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2785.246180][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2785.246180][   T10]      netlink_rcv_skb+0x130/0x360
[ 2785.246180][   T10]      netlink_unicast+0x449/0x710
[ 2785.246180][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2785.246180][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2785.246180][   T10]      ___sys_sendmsg+0xee/0x170
[ 2785.246180][   T10]      __sys_sendmsg+0xcd/0x170
[ 2785.246180][   T10]      do_syscall_64+0xc6/0x1e0
[ 2785.246180][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2785.246180][   T10] 
[ 2785.248262][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2785.248262][   T10]      netdev_get_by_index+0x5e/0x80
[ 2785.248262][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2785.248262][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2785.248262][   T10]      ip6_route_add+0x1c/0x140
[ 2785.248262][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2785.248262][   T10]      addrconf_add_dev+0xe2/0x170
[ 2785.248262][   T10]      inet6_addr_add+0x12f/0xa40
[ 2785.248262][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2785.248262][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2785.248262][   T10]      netlink_rcv_skb+0x130/0x360
[ 2785.248262][   T10]      netlink_unicast+0x449/0x710
[ 2785.248262][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2785.248262][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2785.248262][   T10]      ___sys_sendmsg+0xee/0x170
[ 2785.248262][   T10]      __sys_sendmsg+0xcd/0x170
[ 2785.248262][   T10]      do_syscall_64+0xc6/0x1e0
[ 2785.248262][   T10] 
[ 2785.250302][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2785.250302][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2785.250302][   T10]      ipv6_find_idev+0x102/0x170
[ 2785.250302][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2785.250302][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2785.250302][   T10]      netlink_rcv_skb+0x130/0x360
[ 2785.250302][   T10]      netlink_unicast+0x449/0x710
[ 2785.250302][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2785.250302][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2785.250302][   T10]      ___sys_sendmsg+0xee/0x170
[ 2785.250302][   T10]      __sys_sendmsg+0xcd/0x170
[ 2785.250302][   T10]      do_syscall_64+0xc6/0x1e0
[ 2785.250302][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2785.250302][   T10] 
[ 2785.251897][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2785.251897][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2785.251897][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2785.251897][   T10]      ipv6_find_idev+0x102/0x170
[ 2785.251897][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2785.251897][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2785.251897][   T10]      netlink_rcv_skb+0x130/0x360
[ 2785.251897][   T10]      netlink_unicast+0x449/0x710
[ 2785.251897][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2785.251897][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2785.251897][   T10]      ___sys_sendmsg+0xee/0x170
[ 2785.251897][   T10]      __sys_sendmsg+0xcd/0x170
[ 2785.251897][   T10]      do_syscall_64+0xc6/0x1e0
[ 2785.251897][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2785.251897][   T10] 
[ 2785.253655][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2785.253925][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2785.253925][   T10]      dst_init+0x84/0x4a0
[ 2785.253925][   T10]      dst_alloc+0x97/0x150
[ 2785.253925][   T10]      ip6_dst_alloc+0x23/0x90
[ 2785.253925][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2785.253925][   T10]      ip6_pol_route+0x56f/0x840
[ 2785.253925][   T10]      fib6_rule_lookup+0x456/0x630
[ 2785.253925][   T10]      ip6_route_input+0x59c/0xa50
[ 2785.253925][   T10]      ipv6_rcv+0x397/0x810
[ 2785.253925][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2785.253925][   T10]      process_backlog+0x101/0x620
[ 2785.253925][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2785.253925][   T10]      net_rx_action+0x495/0xbe0
[ 2785.253925][   T10]      __do_softirq+0x1b5/0x7f6
[ 2785.253925][   T10] 
[ 2785.255613][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2785.255613][   T10]      netdev_get_by_index+0x5e/0x80
[ 2785.255613][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2785.255613][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2785.255613][   T10]      ip6_route_add+0x1c/0x140
[ 2785.255613][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2785.255613][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2785.255613][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2785.255613][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2785.255613][   T10]      netlink_rcv_skb+0x130/0x360
[ 2785.255613][   T10]      netlink_unicast+0x449/0x710
[ 2785.255613][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2785.255613][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2785.255613][   T10]      ___sys_sendmsg+0xee/0x170
[ 2785.255613][   T10]      __sys_sendmsg+0xcd/0x170
[ 2785.255613][   T10]      do_syscall_64+0xc6/0x1e0
[ 2785.255613][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2785.255613][   T10] 
[ 2785.257668][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2785.257668][   T10]      netdev_get_by_index+0x5e/0x80
[ 2785.257668][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2785.257668][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2785.257668][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2785.257668][   T10]      ipv6_add_addr+0x411/0x2000
[ 2785.257668][   T10]      inet6_addr_add+0x30e/0xa40
[ 2785.257668][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2785.257668][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2785.257668][   T10]      netlink_rcv_skb+0x130/0x360
[ 2785.257668][   T10]      netlink_unicast+0x449/0x710
[ 2785.257668][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2785.257668][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2785.257668][   T10]      ___sys_sendmsg+0xee/0x170
[ 2785.257668][   T10]      __sys_sendmsg+0xcd/0x170
[ 2785.257668][   T10]      do_syscall_64+0xc6/0x1e0
[ 2785.257668][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2785.257668][   T10] 
[ 2785.259740][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2785.259740][   T10]      netdev_get_by_index+0x5e/0x80
[ 2785.259740][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2785.259740][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2785.259740][   T10]      ip6_route_add+0x1c/0x140
[ 2785.259740][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2785.259740][   T10]      addrconf_add_dev+0xe2/0x170
[ 2785.259740][   T10]      inet6_addr_add+0x12f/0xa40
[ 2785.259740][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2785.259740][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2785.259740][   T10]      netlink_rcv_skb+0x130/0x360
[ 2785.259740][   T10]      netlink_unicast+0x449/0x710
[ 2785.259740][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2785.259740][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2785.259740][   T10]      ___sys_sendmsg+0xee/0x170
[ 2785.259740][   T10]      __sys_sendmsg+0xcd/0x170
[ 2785.259740][   T10]      do_syscall_64+0xc6/0x1e0
[ 2785.259740][   T10] 
[ 2785.261754][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2785.261754][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2785.261754][   T10]      ipv6_find_idev+0x102/0x170
[ 2785.261754][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2785.261754][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2785.261754][   T10]      netlink_rcv_skb+0x130/0x360
[ 2785.261754][   T10]      netlink_unicast+0x449/0x710
[ 2785.261754][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2785.261754][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2785.261754][   T10]      ___sys_sendmsg+0xee/0x170
[ 2785.261754][   T10]      __sys_sendmsg+0xcd/0x170
[ 2785.261754][   T10]      do_syscall_64+0xc6/0x1e0
[ 2785.261754][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2785.261754][   T10] 
[ 2785.263334][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2785.263334][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2785.263334][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2785.263334][   T10]      ipv6_find_idev+0x102/0x170
[ 2785.263334][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2785.263334][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2785.263334][   T10]      netlink_rcv_skb+0x130/0x360
[ 2785.263334][   T10]      netlink_unicast+0x449/0x710
[ 2785.263334][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2785.263334][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2785.263334][   T10]      ___sys_sendmsg+0xee/0x170
[ 2785.263334][   T10]      __sys_sendmsg+0xcd/0x170
[ 2785.263334][   T10]      do_syscall_64+0xc6/0x1e0
[ 2785.263334][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2785.263334][   T10] 
[ 2795.265871][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2795.266309][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2795.266309][   T10]      dst_init+0x84/0x4a0
[ 2795.266309][   T10]      dst_alloc+0x97/0x150
[ 2795.266309][   T10]      ip6_dst_alloc+0x23/0x90
[ 2795.266309][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2795.266309][   T10]      ip6_pol_route+0x56f/0x840
[ 2795.266309][   T10]      fib6_rule_lookup+0x456/0x630
[ 2795.266309][   T10]      ip6_route_input+0x59c/0xa50
[ 2795.266309][   T10]      ipv6_rcv+0x397/0x810
[ 2795.266309][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2795.266309][   T10]      process_backlog+0x101/0x620
[ 2795.266309][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2795.266309][   T10]      net_rx_action+0x495/0xbe0
[ 2795.266309][   T10]      __do_softirq+0x1b5/0x7f6
[ 2795.266309][   T10] 
[ 2795.268053][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2795.268053][   T10]      netdev_get_by_index+0x5e/0x80
[ 2795.268053][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2795.268053][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2795.268053][   T10]      ip6_route_add+0x1c/0x140
[ 2795.268053][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2795.268053][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2795.268053][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2795.268053][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2795.268053][   T10]      netlink_rcv_skb+0x130/0x360
[ 2795.268053][   T10]      netlink_unicast+0x449/0x710
[ 2795.268053][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2795.268053][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2795.268053][   T10]      ___sys_sendmsg+0xee/0x170
[ 2795.268053][   T10]      __sys_sendmsg+0xcd/0x170
[ 2795.268053][   T10]      do_syscall_64+0xc6/0x1e0
[ 2795.268053][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2795.268053][   T10] 
[ 2795.270148][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2795.270148][   T10]      netdev_get_by_index+0x5e/0x80
[ 2795.270148][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2795.270148][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2795.270148][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2795.270148][   T10]      ipv6_add_addr+0x411/0x2000
[ 2795.270148][   T10]      inet6_addr_add+0x30e/0xa40
[ 2795.270148][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2795.270148][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2795.270148][   T10]      netlink_rcv_skb+0x130/0x360
[ 2795.270148][   T10]      netlink_unicast+0x449/0x710
[ 2795.270148][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2795.270148][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2795.270148][   T10]      ___sys_sendmsg+0xee/0x170
[ 2795.270148][   T10]      __sys_sendmsg+0xcd/0x170
[ 2795.270148][   T10]      do_syscall_64+0xc6/0x1e0
[ 2795.270148][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2795.270148][   T10] 
[ 2795.272219][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2795.272219][   T10]      netdev_get_by_index+0x5e/0x80
[ 2795.272219][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2795.272219][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2795.272219][   T10]      ip6_route_add+0x1c/0x140
[ 2795.272219][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2795.272219][   T10]      addrconf_add_dev+0xe2/0x170
[ 2795.272219][   T10]      inet6_addr_add+0x12f/0xa40
[ 2795.272219][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2795.272219][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2795.272219][   T10]      netlink_rcv_skb+0x130/0x360
[ 2795.272219][   T10]      netlink_unicast+0x449/0x710
[ 2795.272219][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2795.272219][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2795.272219][   T10]      ___sys_sendmsg+0xee/0x170
[ 2795.272219][   T10]      __sys_sendmsg+0xcd/0x170
[ 2795.272219][   T10]      do_syscall_64+0xc6/0x1e0
[ 2795.272219][   T10] 
[ 2795.274256][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2795.274256][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2795.274256][   T10]      ipv6_find_idev+0x102/0x170
[ 2795.274256][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2795.274256][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2795.274256][   T10]      netlink_rcv_skb+0x130/0x360
[ 2795.274256][   T10]      netlink_unicast+0x449/0x710
[ 2795.274256][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2795.274256][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2795.274256][   T10]      ___sys_sendmsg+0xee/0x170
[ 2795.274256][   T10]      __sys_sendmsg+0xcd/0x170
[ 2795.274256][   T10]      do_syscall_64+0xc6/0x1e0
[ 2795.274256][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2795.274256][   T10] 
[ 2795.275848][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2795.275848][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2795.275848][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2795.275848][   T10]      ipv6_find_idev+0x102/0x170
[ 2795.275848][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2795.275848][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2795.275848][   T10]      netlink_rcv_skb+0x130/0x360
[ 2795.275848][   T10]      netlink_unicast+0x449/0x710
[ 2795.275848][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2795.275848][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2795.275848][   T10]      ___sys_sendmsg+0xee/0x170
[ 2795.275848][   T10]      __sys_sendmsg+0xcd/0x170
[ 2795.275848][   T10]      do_syscall_64+0xc6/0x1e0
[ 2795.275848][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2795.275848][   T10] 
[ 2795.277623][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2795.277885][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2795.277885][   T10]      dst_init+0x84/0x4a0
[ 2795.277885][   T10]      dst_alloc+0x97/0x150
[ 2795.277885][   T10]      ip6_dst_alloc+0x23/0x90
[ 2795.277885][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2795.277885][   T10]      ip6_pol_route+0x56f/0x840
[ 2795.277885][   T10]      fib6_rule_lookup+0x456/0x630
[ 2795.277885][   T10]      ip6_route_input+0x59c/0xa50
[ 2795.277885][   T10]      ipv6_rcv+0x397/0x810
[ 2795.277885][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2795.277885][   T10]      process_backlog+0x101/0x620
[ 2795.277885][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2795.277885][   T10]      net_rx_action+0x495/0xbe0
[ 2795.277885][   T10]      __do_softirq+0x1b5/0x7f6
[ 2795.277885][   T10] 
[ 2795.279583][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2795.279583][   T10]      netdev_get_by_index+0x5e/0x80
[ 2795.279583][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2795.279583][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2795.279583][   T10]      ip6_route_add+0x1c/0x140
[ 2795.279583][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2795.279583][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2795.279583][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2795.279583][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2795.279583][   T10]      netlink_rcv_skb+0x130/0x360
[ 2795.279583][   T10]      netlink_unicast+0x449/0x710
[ 2795.279583][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2795.279583][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2795.279583][   T10]      ___sys_sendmsg+0xee/0x170
[ 2795.279583][   T10]      __sys_sendmsg+0xcd/0x170
[ 2795.279583][   T10]      do_syscall_64+0xc6/0x1e0
[ 2795.279583][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2795.279583][   T10] 
[ 2795.281660][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2795.281660][   T10]      netdev_get_by_index+0x5e/0x80
[ 2795.281660][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2795.281660][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2795.281660][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2795.281660][   T10]      ipv6_add_addr+0x411/0x2000
[ 2795.281660][   T10]      inet6_addr_add+0x30e/0xa40
[ 2795.281660][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2795.281660][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2795.281660][   T10]      netlink_rcv_skb+0x130/0x360
[ 2795.281660][   T10]      netlink_unicast+0x449/0x710
[ 2795.281660][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2795.281660][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2795.281660][   T10]      ___sys_sendmsg+0xee/0x170
[ 2795.281660][   T10]      __sys_sendmsg+0xcd/0x170
[ 2795.281660][   T10]      do_syscall_64+0xc6/0x1e0
[ 2795.281660][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2795.281660][   T10] 
[ 2795.283731][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2795.283731][   T10]      netdev_get_by_index+0x5e/0x80
[ 2795.283731][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2795.283731][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2795.283731][   T10]      ip6_route_add+0x1c/0x140
[ 2795.283731][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2795.283731][   T10]      addrconf_add_dev+0xe2/0x170
[ 2795.283731][   T10]      inet6_addr_add+0x12f/0xa40
[ 2795.283731][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2795.283731][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2795.283731][   T10]      netlink_rcv_skb+0x130/0x360
[ 2795.283731][   T10]      netlink_unicast+0x449/0x710
[ 2795.283731][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2795.283731][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2795.283731][   T10]      ___sys_sendmsg+0xee/0x170
[ 2795.283731][   T10]      __sys_sendmsg+0xcd/0x170
[ 2795.283731][   T10]      do_syscall_64+0xc6/0x1e0
[ 2795.283731][   T10] 
[ 2795.285753][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2795.285753][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2795.285753][   T10]      ipv6_find_idev+0x102/0x170
[ 2795.285753][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2795.285753][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2795.285753][   T10]      netlink_rcv_skb+0x130/0x360
[ 2795.285753][   T10]      netlink_unicast+0x449/0x710
[ 2795.285753][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2795.285753][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2795.285753][   T10]      ___sys_sendmsg+0xee/0x170
[ 2795.285753][   T10]      __sys_sendmsg+0xcd/0x170
[ 2795.285753][   T10]      do_syscall_64+0xc6/0x1e0
[ 2795.285753][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2795.285753][   T10] 
[ 2795.287338][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2795.287338][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2795.287338][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2795.287338][   T10]      ipv6_find_idev+0x102/0x170
[ 2795.287338][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2795.287338][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2795.287338][   T10]      netlink_rcv_skb+0x130/0x360
[ 2795.287338][   T10]      netlink_unicast+0x449/0x710
[ 2795.287338][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2795.287338][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2795.287338][   T10]      ___sys_sendmsg+0xee/0x170
[ 2795.287338][   T10]      __sys_sendmsg+0xcd/0x170
[ 2795.287338][   T10]      do_syscall_64+0xc6/0x1e0
[ 2795.287338][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2795.287338][   T10] 
[ 2805.529843][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2805.530351][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2805.530351][   T10]      dst_init+0x84/0x4a0
[ 2805.530351][   T10]      dst_alloc+0x97/0x150
[ 2805.530351][   T10]      ip6_dst_alloc+0x23/0x90
[ 2805.530351][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2805.530351][   T10]      ip6_pol_route+0x56f/0x840
[ 2805.530351][   T10]      fib6_rule_lookup+0x456/0x630
[ 2805.530351][   T10]      ip6_route_input+0x59c/0xa50
[ 2805.530351][   T10]      ipv6_rcv+0x397/0x810
[ 2805.530351][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2805.530351][   T10]      process_backlog+0x101/0x620
[ 2805.530351][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2805.530351][   T10]      net_rx_action+0x495/0xbe0
[ 2805.530351][   T10]      __do_softirq+0x1b5/0x7f6
[ 2805.530351][   T10] 
[ 2805.532089][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2805.532089][   T10]      netdev_get_by_index+0x5e/0x80
[ 2805.532089][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2805.532089][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2805.532089][   T10]      ip6_route_add+0x1c/0x140
[ 2805.532089][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2805.532089][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2805.532089][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2805.532089][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2805.532089][   T10]      netlink_rcv_skb+0x130/0x360
[ 2805.532089][   T10]      netlink_unicast+0x449/0x710
[ 2805.532089][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2805.532089][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2805.532089][   T10]      ___sys_sendmsg+0xee/0x170
[ 2805.532089][   T10]      __sys_sendmsg+0xcd/0x170
[ 2805.532089][   T10]      do_syscall_64+0xc6/0x1e0
[ 2805.532089][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2805.532089][   T10] 
[ 2805.534168][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2805.534168][   T10]      netdev_get_by_index+0x5e/0x80
[ 2805.534168][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2805.534168][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2805.534168][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2805.534168][   T10]      ipv6_add_addr+0x411/0x2000
[ 2805.534168][   T10]      inet6_addr_add+0x30e/0xa40
[ 2805.534168][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2805.534168][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2805.534168][   T10]      netlink_rcv_skb+0x130/0x360
[ 2805.534168][   T10]      netlink_unicast+0x449/0x710
[ 2805.534168][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2805.534168][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2805.534168][   T10]      ___sys_sendmsg+0xee/0x170
[ 2805.534168][   T10]      __sys_sendmsg+0xcd/0x170
[ 2805.534168][   T10]      do_syscall_64+0xc6/0x1e0
[ 2805.534168][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2805.534168][   T10] 
[ 2805.536243][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2805.536243][   T10]      netdev_get_by_index+0x5e/0x80
[ 2805.536243][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2805.536243][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2805.536243][   T10]      ip6_route_add+0x1c/0x140
[ 2805.536243][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2805.536243][   T10]      addrconf_add_dev+0xe2/0x170
[ 2805.536243][   T10]      inet6_addr_add+0x12f/0xa40
[ 2805.536243][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2805.536243][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2805.536243][   T10]      netlink_rcv_skb+0x130/0x360
[ 2805.536243][   T10]      netlink_unicast+0x449/0x710
[ 2805.536243][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2805.536243][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2805.536243][   T10]      ___sys_sendmsg+0xee/0x170
[ 2805.536243][   T10]      __sys_sendmsg+0xcd/0x170
[ 2805.536243][   T10]      do_syscall_64+0xc6/0x1e0
[ 2805.536243][   T10] 
[ 2805.538281][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2805.538281][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2805.538281][   T10]      ipv6_find_idev+0x102/0x170
[ 2805.538281][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2805.538281][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2805.538281][   T10]      netlink_rcv_skb+0x130/0x360
[ 2805.538281][   T10]      netlink_unicast+0x449/0x710
[ 2805.538281][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2805.538281][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2805.538281][   T10]      ___sys_sendmsg+0xee/0x170
[ 2805.538281][   T10]      __sys_sendmsg+0xcd/0x170
[ 2805.538281][   T10]      do_syscall_64+0xc6/0x1e0
[ 2805.538281][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2805.538281][   T10] 
[ 2805.540449][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2805.540449][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2805.540449][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2805.540449][   T10]      ipv6_find_idev+0x102/0x170
[ 2805.540449][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2805.540449][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2805.540449][   T10]      netlink_rcv_skb+0x130/0x360
[ 2805.540449][   T10]      netlink_unicast+0x449/0x710
[ 2805.540449][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2805.540449][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2805.540449][   T10]      ___sys_sendmsg+0xee/0x170
[ 2805.540449][   T10]      __sys_sendmsg+0xcd/0x170
[ 2805.540449][   T10]      do_syscall_64+0xc6/0x1e0
[ 2805.540449][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2805.540449][   T10] 
[ 2805.542228][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2805.542478][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2805.542478][   T10]      dst_init+0x84/0x4a0
[ 2805.542478][   T10]      dst_alloc+0x97/0x150
[ 2805.542478][   T10]      ip6_dst_alloc+0x23/0x90
[ 2805.542478][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2805.542478][   T10]      ip6_pol_route+0x56f/0x840
[ 2805.542478][   T10]      fib6_rule_lookup+0x456/0x630
[ 2805.542478][   T10]      ip6_route_input+0x59c/0xa50
[ 2805.542478][   T10]      ipv6_rcv+0x397/0x810
[ 2805.542478][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2805.542478][   T10]      process_backlog+0x101/0x620
[ 2805.542478][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2805.542478][   T10]      net_rx_action+0x495/0xbe0
[ 2805.542478][   T10]      __do_softirq+0x1b5/0x7f6
[ 2805.542478][   T10] 
[ 2805.544172][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2805.544172][   T10]      netdev_get_by_index+0x5e/0x80
[ 2805.544172][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2805.544172][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2805.544172][   T10]      ip6_route_add+0x1c/0x140
[ 2805.544172][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2805.544172][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2805.544172][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2805.544172][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2805.544172][   T10]      netlink_rcv_skb+0x130/0x360
[ 2805.544172][   T10]      netlink_unicast+0x449/0x710
[ 2805.544172][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2805.544172][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2805.544172][   T10]      ___sys_sendmsg+0xee/0x170
[ 2805.544172][   T10]      __sys_sendmsg+0xcd/0x170
[ 2805.544172][   T10]      do_syscall_64+0xc6/0x1e0
[ 2805.544172][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2805.544172][   T10] 
[ 2805.546236][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2805.546236][   T10]      netdev_get_by_index+0x5e/0x80
[ 2805.546236][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2805.546236][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2805.546236][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2805.546236][   T10]      ipv6_add_addr+0x411/0x2000
[ 2805.546236][   T10]      inet6_addr_add+0x30e/0xa40
[ 2805.546236][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2805.546236][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2805.546236][   T10]      netlink_rcv_skb+0x130/0x360
[ 2805.546236][   T10]      netlink_unicast+0x449/0x710
[ 2805.546236][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2805.546236][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2805.546236][   T10]      ___sys_sendmsg+0xee/0x170
[ 2805.546236][   T10]      __sys_sendmsg+0xcd/0x170
[ 2805.546236][   T10]      do_syscall_64+0xc6/0x1e0
[ 2805.546236][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2805.546236][   T10] 
[ 2805.548302][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2805.548302][   T10]      netdev_get_by_index+0x5e/0x80
[ 2805.548302][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2805.548302][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2805.548302][   T10]      ip6_route_add+0x1c/0x140
[ 2805.548302][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2805.548302][   T10]      addrconf_add_dev+0xe2/0x170
[ 2805.548302][   T10]      inet6_addr_add+0x12f/0xa40
[ 2805.548302][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2805.548302][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2805.548302][   T10]      netlink_rcv_skb+0x130/0x360
[ 2805.548302][   T10]      netlink_unicast+0x449/0x710
[ 2805.548302][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2805.548302][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2805.548302][   T10]      ___sys_sendmsg+0xee/0x170
[ 2805.548302][   T10]      __sys_sendmsg+0xcd/0x170
[ 2805.548302][   T10]      do_syscall_64+0xc6/0x1e0
[ 2805.548302][   T10] 
[ 2805.550338][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2805.550338][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2805.550338][   T10]      ipv6_find_idev+0x102/0x170
[ 2805.550338][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2805.550338][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2805.550338][   T10]      netlink_rcv_skb+0x130/0x360
[ 2805.550338][   T10]      netlink_unicast+0x449/0x710
[ 2805.550338][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2805.550338][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2805.550338][   T10]      ___sys_sendmsg+0xee/0x170
[ 2805.550338][   T10]      __sys_sendmsg+0xcd/0x170
[ 2805.550338][   T10]      do_syscall_64+0xc6/0x1e0
[ 2805.550338][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2805.550338][   T10] 
[ 2805.551928][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2805.551928][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2805.551928][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2805.551928][   T10]      ipv6_find_idev+0x102/0x170
[ 2805.551928][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2805.551928][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2805.551928][   T10]      netlink_rcv_skb+0x130/0x360
[ 2805.551928][   T10]      netlink_unicast+0x449/0x710
[ 2805.551928][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2805.551928][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2805.551928][   T10]      ___sys_sendmsg+0xee/0x170
[ 2805.551928][   T10]      __sys_sendmsg+0xcd/0x170
[ 2805.551928][   T10]      do_syscall_64+0xc6/0x1e0
[ 2805.551928][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2805.551928][   T10] 
[ 2815.793851][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2815.794299][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2815.794299][   T10]      dst_init+0x84/0x4a0
[ 2815.794299][   T10]      dst_alloc+0x97/0x150
[ 2815.794299][   T10]      ip6_dst_alloc+0x23/0x90
[ 2815.794299][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2815.794299][   T10]      ip6_pol_route+0x56f/0x840
[ 2815.794299][   T10]      fib6_rule_lookup+0x456/0x630
[ 2815.794299][   T10]      ip6_route_input+0x59c/0xa50
[ 2815.794299][   T10]      ipv6_rcv+0x397/0x810
[ 2815.794299][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2815.794299][   T10]      process_backlog+0x101/0x620
[ 2815.794299][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2815.794299][   T10]      net_rx_action+0x495/0xbe0
[ 2815.794299][   T10]      __do_softirq+0x1b5/0x7f6
[ 2815.794299][   T10] 
[ 2815.796114][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2815.796114][   T10]      netdev_get_by_index+0x5e/0x80
[ 2815.796114][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2815.796114][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2815.796114][   T10]      ip6_route_add+0x1c/0x140
[ 2815.796114][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2815.796114][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2815.796114][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2815.796114][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2815.796114][   T10]      netlink_rcv_skb+0x130/0x360
[ 2815.796114][   T10]      netlink_unicast+0x449/0x710
[ 2815.796114][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2815.796114][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2815.796114][   T10]      ___sys_sendmsg+0xee/0x170
[ 2815.796114][   T10]      __sys_sendmsg+0xcd/0x170
[ 2815.796114][   T10]      do_syscall_64+0xc6/0x1e0
[ 2815.796114][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2815.796114][   T10] 
[ 2815.798140][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2815.798140][   T10]      netdev_get_by_index+0x5e/0x80
[ 2815.798140][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2815.798140][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2815.798140][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2815.798140][   T10]      ipv6_add_addr+0x411/0x2000
[ 2815.798140][   T10]      inet6_addr_add+0x30e/0xa40
[ 2815.798140][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2815.798140][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2815.798140][   T10]      netlink_rcv_skb+0x130/0x360
[ 2815.798140][   T10]      netlink_unicast+0x449/0x710
[ 2815.798140][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2815.798140][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2815.798140][   T10]      ___sys_sendmsg+0xee/0x170
[ 2815.798140][   T10]      __sys_sendmsg+0xcd/0x170
[ 2815.798140][   T10]      do_syscall_64+0xc6/0x1e0
[ 2815.798140][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2815.798140][   T10] 
[ 2815.800182][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2815.800182][   T10]      netdev_get_by_index+0x5e/0x80
[ 2815.800182][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2815.800182][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2815.800182][   T10]      ip6_route_add+0x1c/0x140
[ 2815.800182][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2815.800182][   T10]      addrconf_add_dev+0xe2/0x170
[ 2815.800182][   T10]      inet6_addr_add+0x12f/0xa40
[ 2815.800182][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2815.800182][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2815.800182][   T10]      netlink_rcv_skb+0x130/0x360
[ 2815.800182][   T10]      netlink_unicast+0x449/0x710
[ 2815.800182][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2815.800182][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2815.800182][   T10]      ___sys_sendmsg+0xee/0x170
[ 2815.800182][   T10]      __sys_sendmsg+0xcd/0x170
[ 2815.800182][   T10]      do_syscall_64+0xc6/0x1e0
[ 2815.800182][   T10] 
[ 2815.802163][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2815.802163][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2815.802163][   T10]      ipv6_find_idev+0x102/0x170
[ 2815.802163][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2815.802163][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2815.802163][   T10]      netlink_rcv_skb+0x130/0x360
[ 2815.802163][   T10]      netlink_unicast+0x449/0x710
[ 2815.802163][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2815.802163][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2815.802163][   T10]      ___sys_sendmsg+0xee/0x170
[ 2815.802163][   T10]      __sys_sendmsg+0xcd/0x170
[ 2815.802163][   T10]      do_syscall_64+0xc6/0x1e0
[ 2815.802163][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2815.802163][   T10] 
[ 2815.803724][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2815.803724][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2815.803724][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2815.803724][   T10]      ipv6_find_idev+0x102/0x170
[ 2815.803724][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2815.803724][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2815.803724][   T10]      netlink_rcv_skb+0x130/0x360
[ 2815.803724][   T10]      netlink_unicast+0x449/0x710
[ 2815.803724][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2815.803724][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2815.803724][   T10]      ___sys_sendmsg+0xee/0x170
[ 2815.803724][   T10]      __sys_sendmsg+0xcd/0x170
[ 2815.803724][   T10]      do_syscall_64+0xc6/0x1e0
[ 2815.803724][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2815.803724][   T10] 
[ 2815.805469][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2815.805730][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2815.805730][   T10]      dst_init+0x84/0x4a0
[ 2815.805730][   T10]      dst_alloc+0x97/0x150
[ 2815.805730][   T10]      ip6_dst_alloc+0x23/0x90
[ 2815.805730][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2815.805730][   T10]      ip6_pol_route+0x56f/0x840
[ 2815.805730][   T10]      fib6_rule_lookup+0x456/0x630
[ 2815.805730][   T10]      ip6_route_input+0x59c/0xa50
[ 2815.805730][   T10]      ipv6_rcv+0x397/0x810
[ 2815.805730][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2815.805730][   T10]      process_backlog+0x101/0x620
[ 2815.805730][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2815.805730][   T10]      net_rx_action+0x495/0xbe0
[ 2815.805730][   T10]      __do_softirq+0x1b5/0x7f6
[ 2815.805730][   T10] 
[ 2815.807386][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2815.807386][   T10]      netdev_get_by_index+0x5e/0x80
[ 2815.807386][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2815.807386][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2815.807386][   T10]      ip6_route_add+0x1c/0x140
[ 2815.807386][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2815.807386][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2815.807386][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2815.807386][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2815.807386][   T10]      netlink_rcv_skb+0x130/0x360
[ 2815.807386][   T10]      netlink_unicast+0x449/0x710
[ 2815.807386][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2815.807386][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2815.807386][   T10]      ___sys_sendmsg+0xee/0x170
[ 2815.807386][   T10]      __sys_sendmsg+0xcd/0x170
[ 2815.807386][   T10]      do_syscall_64+0xc6/0x1e0
[ 2815.807386][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2815.807386][   T10] 
[ 2815.809413][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2815.809413][   T10]      netdev_get_by_index+0x5e/0x80
[ 2815.809413][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2815.809413][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2815.809413][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2815.809413][   T10]      ipv6_add_addr+0x411/0x2000
[ 2815.809413][   T10]      inet6_addr_add+0x30e/0xa40
[ 2815.809413][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2815.809413][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2815.809413][   T10]      netlink_rcv_skb+0x130/0x360
[ 2815.809413][   T10]      netlink_unicast+0x449/0x710
[ 2815.809413][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2815.809413][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2815.809413][   T10]      ___sys_sendmsg+0xee/0x170
[ 2815.809413][   T10]      __sys_sendmsg+0xcd/0x170
[ 2815.809413][   T10]      do_syscall_64+0xc6/0x1e0
[ 2815.809413][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2815.809413][   T10] 
[ 2815.811432][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2815.811432][   T10]      netdev_get_by_index+0x5e/0x80
[ 2815.811432][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2815.811432][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2815.811432][   T10]      ip6_route_add+0x1c/0x140
[ 2815.811432][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2815.811432][   T10]      addrconf_add_dev+0xe2/0x170
[ 2815.811432][   T10]      inet6_addr_add+0x12f/0xa40
[ 2815.811432][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2815.811432][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2815.811432][   T10]      netlink_rcv_skb+0x130/0x360
[ 2815.811432][   T10]      netlink_unicast+0x449/0x710
[ 2815.811432][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2815.811432][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2815.811432][   T10]      ___sys_sendmsg+0xee/0x170
[ 2815.811432][   T10]      __sys_sendmsg+0xcd/0x170
[ 2815.811432][   T10]      do_syscall_64+0xc6/0x1e0
[ 2815.811432][   T10] 
[ 2815.813412][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2815.813412][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2815.813412][   T10]      ipv6_find_idev+0x102/0x170
[ 2815.813412][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2815.813412][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2815.813412][   T10]      netlink_rcv_skb+0x130/0x360
[ 2815.813412][   T10]      netlink_unicast+0x449/0x710
[ 2815.813412][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2815.813412][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2815.813412][   T10]      ___sys_sendmsg+0xee/0x170
[ 2815.813412][   T10]      __sys_sendmsg+0xcd/0x170
[ 2815.813412][   T10]      do_syscall_64+0xc6/0x1e0
[ 2815.813412][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2815.813412][   T10] 
[ 2815.814966][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2815.814966][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2815.814966][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2815.814966][   T10]      ipv6_find_idev+0x102/0x170
[ 2815.814966][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2815.814966][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2815.814966][   T10]      netlink_rcv_skb+0x130/0x360
[ 2815.814966][   T10]      netlink_unicast+0x449/0x710
[ 2815.814966][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2815.814966][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2815.814966][   T10]      ___sys_sendmsg+0xee/0x170
[ 2815.814966][   T10]      __sys_sendmsg+0xcd/0x170
[ 2815.814966][   T10]      do_syscall_64+0xc6/0x1e0
[ 2815.814966][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2815.814966][   T10] 
[ 2826.057839][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2826.058341][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2826.058341][   T10]      dst_init+0x84/0x4a0
[ 2826.058341][   T10]      dst_alloc+0x97/0x150
[ 2826.058341][   T10]      ip6_dst_alloc+0x23/0x90
[ 2826.058341][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2826.058341][   T10]      ip6_pol_route+0x56f/0x840
[ 2826.058341][   T10]      fib6_rule_lookup+0x456/0x630
[ 2826.058341][   T10]      ip6_route_input+0x59c/0xa50
[ 2826.058341][   T10]      ipv6_rcv+0x397/0x810
[ 2826.058341][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2826.058341][   T10]      process_backlog+0x101/0x620
[ 2826.058341][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2826.058341][   T10]      net_rx_action+0x495/0xbe0
[ 2826.058341][   T10]      __do_softirq+0x1b5/0x7f6
[ 2826.058341][   T10] 
[ 2826.060051][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2826.060051][   T10]      netdev_get_by_index+0x5e/0x80
[ 2826.060051][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2826.060051][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2826.060051][   T10]      ip6_route_add+0x1c/0x140
[ 2826.060051][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2826.060051][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2826.060051][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2826.060051][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2826.060051][   T10]      netlink_rcv_skb+0x130/0x360
[ 2826.060051][   T10]      netlink_unicast+0x449/0x710
[ 2826.060051][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2826.060051][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2826.060051][   T10]      ___sys_sendmsg+0xee/0x170
[ 2826.060051][   T10]      __sys_sendmsg+0xcd/0x170
[ 2826.060051][   T10]      do_syscall_64+0xc6/0x1e0
[ 2826.060051][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2826.060051][   T10] 
[ 2826.062080][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2826.062080][   T10]      netdev_get_by_index+0x5e/0x80
[ 2826.062080][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2826.062080][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2826.062080][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2826.062080][   T10]      ipv6_add_addr+0x411/0x2000
[ 2826.062080][   T10]      inet6_addr_add+0x30e/0xa40
[ 2826.062080][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2826.062080][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2826.062080][   T10]      netlink_rcv_skb+0x130/0x360
[ 2826.062080][   T10]      netlink_unicast+0x449/0x710
[ 2826.062080][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2826.062080][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2826.062080][   T10]      ___sys_sendmsg+0xee/0x170
[ 2826.062080][   T10]      __sys_sendmsg+0xcd/0x170
[ 2826.062080][   T10]      do_syscall_64+0xc6/0x1e0
[ 2826.062080][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2826.062080][   T10] 
[ 2826.064103][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2826.064103][   T10]      netdev_get_by_index+0x5e/0x80
[ 2826.064103][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2826.064103][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2826.064103][   T10]      ip6_route_add+0x1c/0x140
[ 2826.064103][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2826.064103][   T10]      addrconf_add_dev+0xe2/0x170
[ 2826.064103][   T10]      inet6_addr_add+0x12f/0xa40
[ 2826.064103][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2826.064103][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2826.064103][   T10]      netlink_rcv_skb+0x130/0x360
[ 2826.064103][   T10]      netlink_unicast+0x449/0x710
[ 2826.064103][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2826.064103][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2826.064103][   T10]      ___sys_sendmsg+0xee/0x170
[ 2826.064103][   T10]      __sys_sendmsg+0xcd/0x170
[ 2826.064103][   T10]      do_syscall_64+0xc6/0x1e0
[ 2826.064103][   T10] 
[ 2826.066092][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2826.066092][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2826.066092][   T10]      ipv6_find_idev+0x102/0x170
[ 2826.066092][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2826.066092][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2826.066092][   T10]      netlink_rcv_skb+0x130/0x360
[ 2826.066092][   T10]      netlink_unicast+0x449/0x710
[ 2826.066092][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2826.066092][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2826.066092][   T10]      ___sys_sendmsg+0xee/0x170
[ 2826.066092][   T10]      __sys_sendmsg+0xcd/0x170
[ 2826.066092][   T10]      do_syscall_64+0xc6/0x1e0
[ 2826.066092][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2826.066092][   T10] 
[ 2826.067656][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2826.067656][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2826.067656][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2826.067656][   T10]      ipv6_find_idev+0x102/0x170
[ 2826.067656][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2826.067656][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2826.067656][   T10]      netlink_rcv_skb+0x130/0x360
[ 2826.067656][   T10]      netlink_unicast+0x449/0x710
[ 2826.067656][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2826.067656][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2826.067656][   T10]      ___sys_sendmsg+0xee/0x170
[ 2826.067656][   T10]      __sys_sendmsg+0xcd/0x170
[ 2826.067656][   T10]      do_syscall_64+0xc6/0x1e0
[ 2826.067656][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2826.067656][   T10] 
[ 2826.069395][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2826.069639][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2826.069639][   T10]      dst_init+0x84/0x4a0
[ 2826.069639][   T10]      dst_alloc+0x97/0x150
[ 2826.069639][   T10]      ip6_dst_alloc+0x23/0x90
[ 2826.069639][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2826.069639][   T10]      ip6_pol_route+0x56f/0x840
[ 2826.069639][   T10]      fib6_rule_lookup+0x456/0x630
[ 2826.069639][   T10]      ip6_route_input+0x59c/0xa50
[ 2826.069639][   T10]      ipv6_rcv+0x397/0x810
[ 2826.069639][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2826.069639][   T10]      process_backlog+0x101/0x620
[ 2826.069639][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2826.069639][   T10]      net_rx_action+0x495/0xbe0
[ 2826.069639][   T10]      __do_softirq+0x1b5/0x7f6
[ 2826.069639][   T10] 
[ 2826.071318][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2826.071318][   T10]      netdev_get_by_index+0x5e/0x80
[ 2826.071318][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2826.071318][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2826.071318][   T10]      ip6_route_add+0x1c/0x140
[ 2826.071318][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2826.071318][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2826.071318][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2826.071318][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2826.071318][   T10]      netlink_rcv_skb+0x130/0x360
[ 2826.071318][   T10]      netlink_unicast+0x449/0x710
[ 2826.071318][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2826.071318][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2826.071318][   T10]      ___sys_sendmsg+0xee/0x170
[ 2826.071318][   T10]      __sys_sendmsg+0xcd/0x170
[ 2826.071318][   T10]      do_syscall_64+0xc6/0x1e0
[ 2826.071318][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2826.071318][   T10] 
[ 2826.073340][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2826.073340][   T10]      netdev_get_by_index+0x5e/0x80
[ 2826.073340][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2826.073340][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2826.073340][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2826.073340][   T10]      ipv6_add_addr+0x411/0x2000
[ 2826.073340][   T10]      inet6_addr_add+0x30e/0xa40
[ 2826.073340][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2826.073340][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2826.073340][   T10]      netlink_rcv_skb+0x130/0x360
[ 2826.073340][   T10]      netlink_unicast+0x449/0x710
[ 2826.073340][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2826.073340][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2826.073340][   T10]      ___sys_sendmsg+0xee/0x170
[ 2826.073340][   T10]      __sys_sendmsg+0xcd/0x170
[ 2826.073340][   T10]      do_syscall_64+0xc6/0x1e0
[ 2826.073340][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2826.073340][   T10] 
[ 2826.075358][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2826.075358][   T10]      netdev_get_by_index+0x5e/0x80
[ 2826.075358][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2826.075358][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2826.075358][   T10]      ip6_route_add+0x1c/0x140
[ 2826.075358][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2826.075358][   T10]      addrconf_add_dev+0xe2/0x170
[ 2826.075358][   T10]      inet6_addr_add+0x12f/0xa40
[ 2826.075358][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2826.075358][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2826.075358][   T10]      netlink_rcv_skb+0x130/0x360
[ 2826.075358][   T10]      netlink_unicast+0x449/0x710
[ 2826.075358][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2826.075358][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2826.075358][   T10]      ___sys_sendmsg+0xee/0x170
[ 2826.075358][   T10]      __sys_sendmsg+0xcd/0x170
[ 2826.075358][   T10]      do_syscall_64+0xc6/0x1e0
[ 2826.075358][   T10] 
[ 2826.077332][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2826.077332][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2826.077332][   T10]      ipv6_find_idev+0x102/0x170
[ 2826.077332][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2826.077332][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2826.077332][   T10]      netlink_rcv_skb+0x130/0x360
[ 2826.077332][   T10]      netlink_unicast+0x449/0x710
[ 2826.077332][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2826.077332][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2826.077332][   T10]      ___sys_sendmsg+0xee/0x170
[ 2826.077332][   T10]      __sys_sendmsg+0xcd/0x170
[ 2826.077332][   T10]      do_syscall_64+0xc6/0x1e0
[ 2826.077332][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2826.077332][   T10] 
[ 2826.078885][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2826.078885][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2826.078885][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2826.078885][   T10]      ipv6_find_idev+0x102/0x170
[ 2826.078885][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2826.078885][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2826.078885][   T10]      netlink_rcv_skb+0x130/0x360
[ 2826.078885][   T10]      netlink_unicast+0x449/0x710
[ 2826.078885][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2826.078885][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2826.078885][   T10]      ___sys_sendmsg+0xee/0x170
[ 2826.078885][   T10]      __sys_sendmsg+0xcd/0x170
[ 2826.078885][   T10]      do_syscall_64+0xc6/0x1e0
[ 2826.078885][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2826.078885][   T10] 
[ 2836.321823][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2836.322307][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2836.322307][   T10]      dst_init+0x84/0x4a0
[ 2836.322307][   T10]      dst_alloc+0x97/0x150
[ 2836.322307][   T10]      ip6_dst_alloc+0x23/0x90
[ 2836.322307][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2836.322307][   T10]      ip6_pol_route+0x56f/0x840
[ 2836.322307][   T10]      fib6_rule_lookup+0x456/0x630
[ 2836.322307][   T10]      ip6_route_input+0x59c/0xa50
[ 2836.322307][   T10]      ipv6_rcv+0x397/0x810
[ 2836.322307][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2836.322307][   T10]      process_backlog+0x101/0x620
[ 2836.322307][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2836.322307][   T10]      net_rx_action+0x495/0xbe0
[ 2836.322307][   T10]      __do_softirq+0x1b5/0x7f6
[ 2836.322307][   T10] 
[ 2836.324019][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2836.324019][   T10]      netdev_get_by_index+0x5e/0x80
[ 2836.324019][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2836.324019][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2836.324019][   T10]      ip6_route_add+0x1c/0x140
[ 2836.324019][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2836.324019][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2836.324019][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2836.324019][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2836.324019][   T10]      netlink_rcv_skb+0x130/0x360
[ 2836.324019][   T10]      netlink_unicast+0x449/0x710
[ 2836.324019][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2836.324019][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2836.324019][   T10]      ___sys_sendmsg+0xee/0x170
[ 2836.324019][   T10]      __sys_sendmsg+0xcd/0x170
[ 2836.324019][   T10]      do_syscall_64+0xc6/0x1e0
[ 2836.324019][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2836.324019][   T10] 
[ 2836.326051][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2836.326051][   T10]      netdev_get_by_index+0x5e/0x80
[ 2836.326051][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2836.326051][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2836.326051][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2836.326051][   T10]      ipv6_add_addr+0x411/0x2000
[ 2836.326051][   T10]      inet6_addr_add+0x30e/0xa40
[ 2836.326051][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2836.326051][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2836.326051][   T10]      netlink_rcv_skb+0x130/0x360
[ 2836.326051][   T10]      netlink_unicast+0x449/0x710
[ 2836.326051][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2836.326051][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2836.326051][   T10]      ___sys_sendmsg+0xee/0x170
[ 2836.326051][   T10]      __sys_sendmsg+0xcd/0x170
[ 2836.326051][   T10]      do_syscall_64+0xc6/0x1e0
[ 2836.326051][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2836.326051][   T10] 
[ 2836.328077][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2836.328077][   T10]      netdev_get_by_index+0x5e/0x80
[ 2836.328077][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2836.328077][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2836.328077][   T10]      ip6_route_add+0x1c/0x140
[ 2836.328077][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2836.328077][   T10]      addrconf_add_dev+0xe2/0x170
[ 2836.328077][   T10]      inet6_addr_add+0x12f/0xa40
[ 2836.328077][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2836.328077][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2836.328077][   T10]      netlink_rcv_skb+0x130/0x360
[ 2836.328077][   T10]      netlink_unicast+0x449/0x710
[ 2836.328077][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2836.328077][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2836.328077][   T10]      ___sys_sendmsg+0xee/0x170
[ 2836.328077][   T10]      __sys_sendmsg+0xcd/0x170
[ 2836.328077][   T10]      do_syscall_64+0xc6/0x1e0
[ 2836.328077][   T10] 
[ 2836.330075][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2836.330075][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2836.330075][   T10]      ipv6_find_idev+0x102/0x170
[ 2836.330075][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2836.330075][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2836.330075][   T10]      netlink_rcv_skb+0x130/0x360
[ 2836.330075][   T10]      netlink_unicast+0x449/0x710
[ 2836.330075][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2836.330075][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2836.330075][   T10]      ___sys_sendmsg+0xee/0x170
[ 2836.330075][   T10]      __sys_sendmsg+0xcd/0x170
[ 2836.330075][   T10]      do_syscall_64+0xc6/0x1e0
[ 2836.330075][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2836.330075][   T10] 
[ 2836.331629][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2836.331629][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2836.331629][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2836.331629][   T10]      ipv6_find_idev+0x102/0x170
[ 2836.331629][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2836.331629][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2836.331629][   T10]      netlink_rcv_skb+0x130/0x360
[ 2836.331629][   T10]      netlink_unicast+0x449/0x710
[ 2836.331629][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2836.331629][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2836.331629][   T10]      ___sys_sendmsg+0xee/0x170
[ 2836.331629][   T10]      __sys_sendmsg+0xcd/0x170
[ 2836.331629][   T10]      do_syscall_64+0xc6/0x1e0
[ 2836.331629][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2836.331629][   T10] 
[ 2836.333362][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2836.333609][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2836.333609][   T10]      dst_init+0x84/0x4a0
[ 2836.333609][   T10]      dst_alloc+0x97/0x150
[ 2836.333609][   T10]      ip6_dst_alloc+0x23/0x90
[ 2836.333609][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2836.333609][   T10]      ip6_pol_route+0x56f/0x840
[ 2836.333609][   T10]      fib6_rule_lookup+0x456/0x630
[ 2836.333609][   T10]      ip6_route_input+0x59c/0xa50
[ 2836.333609][   T10]      ipv6_rcv+0x397/0x810
[ 2836.333609][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2836.333609][   T10]      process_backlog+0x101/0x620
[ 2836.333609][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2836.333609][   T10]      net_rx_action+0x495/0xbe0
[ 2836.333609][   T10]      __do_softirq+0x1b5/0x7f6
[ 2836.333609][   T10] 
[ 2836.335262][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2836.335262][   T10]      netdev_get_by_index+0x5e/0x80
[ 2836.335262][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2836.335262][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2836.335262][   T10]      ip6_route_add+0x1c/0x140
[ 2836.335262][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2836.335262][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2836.335262][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2836.335262][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2836.335262][   T10]      netlink_rcv_skb+0x130/0x360
[ 2836.335262][   T10]      netlink_unicast+0x449/0x710
[ 2836.335262][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2836.335262][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2836.335262][   T10]      ___sys_sendmsg+0xee/0x170
[ 2836.335262][   T10]      __sys_sendmsg+0xcd/0x170
[ 2836.335262][   T10]      do_syscall_64+0xc6/0x1e0
[ 2836.335262][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2836.335262][   T10] 
[ 2836.337298][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2836.337298][   T10]      netdev_get_by_index+0x5e/0x80
[ 2836.337298][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2836.337298][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2836.337298][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2836.337298][   T10]      ipv6_add_addr+0x411/0x2000
[ 2836.337298][   T10]      inet6_addr_add+0x30e/0xa40
[ 2836.337298][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2836.337298][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2836.337298][   T10]      netlink_rcv_skb+0x130/0x360
[ 2836.337298][   T10]      netlink_unicast+0x449/0x710
[ 2836.337298][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2836.337298][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2836.337298][   T10]      ___sys_sendmsg+0xee/0x170
[ 2836.337298][   T10]      __sys_sendmsg+0xcd/0x170
[ 2836.337298][   T10]      do_syscall_64+0xc6/0x1e0
[ 2836.337298][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2836.337298][   T10] 
[ 2836.339324][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2836.339324][   T10]      netdev_get_by_index+0x5e/0x80
[ 2836.339324][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2836.339324][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2836.339324][   T10]      ip6_route_add+0x1c/0x140
[ 2836.339324][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2836.339324][   T10]      addrconf_add_dev+0xe2/0x170
[ 2836.339324][   T10]      inet6_addr_add+0x12f/0xa40
[ 2836.339324][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2836.339324][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2836.339324][   T10]      netlink_rcv_skb+0x130/0x360
[ 2836.339324][   T10]      netlink_unicast+0x449/0x710
[ 2836.339324][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2836.339324][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2836.339324][   T10]      ___sys_sendmsg+0xee/0x170
[ 2836.339324][   T10]      __sys_sendmsg+0xcd/0x170
[ 2836.339324][   T10]      do_syscall_64+0xc6/0x1e0
[ 2836.339324][   T10] 
[ 2836.341300][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2836.341300][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2836.341300][   T10]      ipv6_find_idev+0x102/0x170
[ 2836.341300][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2836.341300][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2836.341300][   T10]      netlink_rcv_skb+0x130/0x360
[ 2836.341300][   T10]      netlink_unicast+0x449/0x710
[ 2836.341300][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2836.341300][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2836.341300][   T10]      ___sys_sendmsg+0xee/0x170
[ 2836.341300][   T10]      __sys_sendmsg+0xcd/0x170
[ 2836.341300][   T10]      do_syscall_64+0xc6/0x1e0
[ 2836.341300][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2836.341300][   T10] 
[ 2836.342859][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2836.342859][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2836.342859][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2836.342859][   T10]      ipv6_find_idev+0x102/0x170
[ 2836.342859][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2836.342859][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2836.342859][   T10]      netlink_rcv_skb+0x130/0x360
[ 2836.342859][   T10]      netlink_unicast+0x449/0x710
[ 2836.342859][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2836.342859][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2836.342859][   T10]      ___sys_sendmsg+0xee/0x170
[ 2836.342859][   T10]      __sys_sendmsg+0xcd/0x170
[ 2836.342859][   T10]      do_syscall_64+0xc6/0x1e0
[ 2836.342859][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2836.342859][   T10] 
[ 2846.585848][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2846.586344][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2846.586344][   T10]      dst_init+0x84/0x4a0
[ 2846.586344][   T10]      dst_alloc+0x97/0x150
[ 2846.586344][   T10]      ip6_dst_alloc+0x23/0x90
[ 2846.586344][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2846.586344][   T10]      ip6_pol_route+0x56f/0x840
[ 2846.586344][   T10]      fib6_rule_lookup+0x456/0x630
[ 2846.586344][   T10]      ip6_route_input+0x59c/0xa50
[ 2846.586344][   T10]      ipv6_rcv+0x397/0x810
[ 2846.586344][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2846.586344][   T10]      process_backlog+0x101/0x620
[ 2846.586344][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2846.586344][   T10]      net_rx_action+0x495/0xbe0
[ 2846.586344][   T10]      __do_softirq+0x1b5/0x7f6
[ 2846.586344][   T10] 
[ 2846.588042][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2846.588042][   T10]      netdev_get_by_index+0x5e/0x80
[ 2846.588042][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2846.588042][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2846.588042][   T10]      ip6_route_add+0x1c/0x140
[ 2846.588042][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2846.588042][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2846.588042][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2846.588042][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2846.588042][   T10]      netlink_rcv_skb+0x130/0x360
[ 2846.588042][   T10]      netlink_unicast+0x449/0x710
[ 2846.588042][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2846.588042][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2846.588042][   T10]      ___sys_sendmsg+0xee/0x170
[ 2846.588042][   T10]      __sys_sendmsg+0xcd/0x170
[ 2846.588042][   T10]      do_syscall_64+0xc6/0x1e0
[ 2846.588042][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2846.588042][   T10] 
[ 2846.590082][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2846.590082][   T10]      netdev_get_by_index+0x5e/0x80
[ 2846.590082][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2846.590082][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2846.590082][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2846.590082][   T10]      ipv6_add_addr+0x411/0x2000
[ 2846.590082][   T10]      inet6_addr_add+0x30e/0xa40
[ 2846.590082][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2846.590082][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2846.590082][   T10]      netlink_rcv_skb+0x130/0x360
[ 2846.590082][   T10]      netlink_unicast+0x449/0x710
[ 2846.590082][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2846.590082][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2846.590082][   T10]      ___sys_sendmsg+0xee/0x170
[ 2846.590082][   T10]      __sys_sendmsg+0xcd/0x170
[ 2846.590082][   T10]      do_syscall_64+0xc6/0x1e0
[ 2846.590082][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2846.590082][   T10] 
[ 2846.592107][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2846.592107][   T10]      netdev_get_by_index+0x5e/0x80
[ 2846.592107][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2846.592107][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2846.592107][   T10]      ip6_route_add+0x1c/0x140
[ 2846.592107][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2846.592107][   T10]      addrconf_add_dev+0xe2/0x170
[ 2846.592107][   T10]      inet6_addr_add+0x12f/0xa40
[ 2846.592107][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2846.592107][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2846.592107][   T10]      netlink_rcv_skb+0x130/0x360
[ 2846.592107][   T10]      netlink_unicast+0x449/0x710
[ 2846.592107][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2846.592107][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2846.592107][   T10]      ___sys_sendmsg+0xee/0x170
[ 2846.592107][   T10]      __sys_sendmsg+0xcd/0x170
[ 2846.592107][   T10]      do_syscall_64+0xc6/0x1e0
[ 2846.592107][   T10] 
[ 2846.594097][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2846.594097][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2846.594097][   T10]      ipv6_find_idev+0x102/0x170
[ 2846.594097][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2846.594097][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2846.594097][   T10]      netlink_rcv_skb+0x130/0x360
[ 2846.594097][   T10]      netlink_unicast+0x449/0x710
[ 2846.594097][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2846.594097][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2846.594097][   T10]      ___sys_sendmsg+0xee/0x170
[ 2846.594097][   T10]      __sys_sendmsg+0xcd/0x170
[ 2846.594097][   T10]      do_syscall_64+0xc6/0x1e0
[ 2846.594097][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2846.594097][   T10] 
[ 2846.595653][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2846.595653][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2846.595653][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2846.595653][   T10]      ipv6_find_idev+0x102/0x170
[ 2846.595653][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2846.595653][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2846.595653][   T10]      netlink_rcv_skb+0x130/0x360
[ 2846.595653][   T10]      netlink_unicast+0x449/0x710
[ 2846.595653][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2846.595653][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2846.595653][   T10]      ___sys_sendmsg+0xee/0x170
[ 2846.595653][   T10]      __sys_sendmsg+0xcd/0x170
[ 2846.595653][   T10]      do_syscall_64+0xc6/0x1e0
[ 2846.595653][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2846.595653][   T10] 
[ 2846.597386][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2846.597632][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2846.597632][   T10]      dst_init+0x84/0x4a0
[ 2846.597632][   T10]      dst_alloc+0x97/0x150
[ 2846.597632][   T10]      ip6_dst_alloc+0x23/0x90
[ 2846.597632][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2846.597632][   T10]      ip6_pol_route+0x56f/0x840
[ 2846.597632][   T10]      fib6_rule_lookup+0x456/0x630
[ 2846.597632][   T10]      ip6_route_input+0x59c/0xa50
[ 2846.597632][   T10]      ipv6_rcv+0x397/0x810
[ 2846.597632][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2846.597632][   T10]      process_backlog+0x101/0x620
[ 2846.597632][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2846.597632][   T10]      net_rx_action+0x495/0xbe0
[ 2846.597632][   T10]      __do_softirq+0x1b5/0x7f6
[ 2846.597632][   T10] 
[ 2846.599299][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2846.599299][   T10]      netdev_get_by_index+0x5e/0x80
[ 2846.599299][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2846.599299][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2846.599299][   T10]      ip6_route_add+0x1c/0x140
[ 2846.599299][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2846.599299][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2846.599299][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2846.599299][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2846.599299][   T10]      netlink_rcv_skb+0x130/0x360
[ 2846.599299][   T10]      netlink_unicast+0x449/0x710
[ 2846.599299][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2846.599299][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2846.599299][   T10]      ___sys_sendmsg+0xee/0x170
[ 2846.599299][   T10]      __sys_sendmsg+0xcd/0x170
[ 2846.599299][   T10]      do_syscall_64+0xc6/0x1e0
[ 2846.599299][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2846.599299][   T10] 
[ 2846.601322][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2846.601322][   T10]      netdev_get_by_index+0x5e/0x80
[ 2846.601322][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2846.601322][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2846.601322][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2846.601322][   T10]      ipv6_add_addr+0x411/0x2000
[ 2846.601322][   T10]      inet6_addr_add+0x30e/0xa40
[ 2846.601322][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2846.601322][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2846.601322][   T10]      netlink_rcv_skb+0x130/0x360
[ 2846.601322][   T10]      netlink_unicast+0x449/0x710
[ 2846.601322][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2846.601322][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2846.601322][   T10]      ___sys_sendmsg+0xee/0x170
[ 2846.601322][   T10]      __sys_sendmsg+0xcd/0x170
[ 2846.601322][   T10]      do_syscall_64+0xc6/0x1e0
[ 2846.601322][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2846.601322][   T10] 
[ 2846.603354][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2846.603354][   T10]      netdev_get_by_index+0x5e/0x80
[ 2846.603354][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2846.603354][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2846.603354][   T10]      ip6_route_add+0x1c/0x140
[ 2846.603354][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2846.603354][   T10]      addrconf_add_dev+0xe2/0x170
[ 2846.603354][   T10]      inet6_addr_add+0x12f/0xa40
[ 2846.603354][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2846.603354][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2846.603354][   T10]      netlink_rcv_skb+0x130/0x360
[ 2846.603354][   T10]      netlink_unicast+0x449/0x710
[ 2846.603354][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2846.603354][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2846.603354][   T10]      ___sys_sendmsg+0xee/0x170
[ 2846.603354][   T10]      __sys_sendmsg+0xcd/0x170
[ 2846.603354][   T10]      do_syscall_64+0xc6/0x1e0
[ 2846.603354][   T10] 
[ 2846.605337][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2846.605337][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2846.605337][   T10]      ipv6_find_idev+0x102/0x170
[ 2846.605337][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2846.605337][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2846.605337][   T10]      netlink_rcv_skb+0x130/0x360
[ 2846.605337][   T10]      netlink_unicast+0x449/0x710
[ 2846.605337][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2846.605337][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2846.605337][   T10]      ___sys_sendmsg+0xee/0x170
[ 2846.605337][   T10]      __sys_sendmsg+0xcd/0x170
[ 2846.605337][   T10]      do_syscall_64+0xc6/0x1e0
[ 2846.605337][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2846.605337][   T10] 
[ 2846.606892][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2846.606892][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2846.606892][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2846.606892][   T10]      ipv6_find_idev+0x102/0x170
[ 2846.606892][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2846.606892][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2846.606892][   T10]      netlink_rcv_skb+0x130/0x360
[ 2846.606892][   T10]      netlink_unicast+0x449/0x710
[ 2846.606892][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2846.606892][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2846.606892][   T10]      ___sys_sendmsg+0xee/0x170
[ 2846.606892][   T10]      __sys_sendmsg+0xcd/0x170
[ 2846.606892][   T10]      do_syscall_64+0xc6/0x1e0
[ 2846.606892][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2846.606892][   T10] 
[ 2856.849819][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2856.850303][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2856.850303][   T10]      dst_init+0x84/0x4a0
[ 2856.850303][   T10]      dst_alloc+0x97/0x150
[ 2856.850303][   T10]      ip6_dst_alloc+0x23/0x90
[ 2856.850303][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2856.850303][   T10]      ip6_pol_route+0x56f/0x840
[ 2856.850303][   T10]      fib6_rule_lookup+0x456/0x630
[ 2856.850303][   T10]      ip6_route_input+0x59c/0xa50
[ 2856.850303][   T10]      ipv6_rcv+0x397/0x810
[ 2856.850303][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2856.850303][   T10]      process_backlog+0x101/0x620
[ 2856.850303][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2856.850303][   T10]      net_rx_action+0x495/0xbe0
[ 2856.850303][   T10]      __do_softirq+0x1b5/0x7f6
[ 2856.850303][   T10] 
[ 2856.852010][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2856.852010][   T10]      netdev_get_by_index+0x5e/0x80
[ 2856.852010][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2856.852010][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2856.852010][   T10]      ip6_route_add+0x1c/0x140
[ 2856.852010][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2856.852010][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2856.852010][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2856.852010][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2856.852010][   T10]      netlink_rcv_skb+0x130/0x360
[ 2856.852010][   T10]      netlink_unicast+0x449/0x710
[ 2856.852010][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2856.852010][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2856.852010][   T10]      ___sys_sendmsg+0xee/0x170
[ 2856.852010][   T10]      __sys_sendmsg+0xcd/0x170
[ 2856.852010][   T10]      do_syscall_64+0xc6/0x1e0
[ 2856.852010][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2856.852010][   T10] 
[ 2856.854041][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2856.854041][   T10]      netdev_get_by_index+0x5e/0x80
[ 2856.854041][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2856.854041][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2856.854041][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2856.854041][   T10]      ipv6_add_addr+0x411/0x2000
[ 2856.854041][   T10]      inet6_addr_add+0x30e/0xa40
[ 2856.854041][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2856.854041][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2856.854041][   T10]      netlink_rcv_skb+0x130/0x360
[ 2856.854041][   T10]      netlink_unicast+0x449/0x710
[ 2856.854041][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2856.854041][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2856.854041][   T10]      ___sys_sendmsg+0xee/0x170
[ 2856.854041][   T10]      __sys_sendmsg+0xcd/0x170
[ 2856.854041][   T10]      do_syscall_64+0xc6/0x1e0
[ 2856.854041][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2856.854041][   T10] 
[ 2856.856074][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2856.856074][   T10]      netdev_get_by_index+0x5e/0x80
[ 2856.856074][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2856.856074][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2856.856074][   T10]      ip6_route_add+0x1c/0x140
[ 2856.856074][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2856.856074][   T10]      addrconf_add_dev+0xe2/0x170
[ 2856.856074][   T10]      inet6_addr_add+0x12f/0xa40
[ 2856.856074][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2856.856074][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2856.856074][   T10]      netlink_rcv_skb+0x130/0x360
[ 2856.856074][   T10]      netlink_unicast+0x449/0x710
[ 2856.856074][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2856.856074][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2856.856074][   T10]      ___sys_sendmsg+0xee/0x170
[ 2856.856074][   T10]      __sys_sendmsg+0xcd/0x170
[ 2856.856074][   T10]      do_syscall_64+0xc6/0x1e0
[ 2856.856074][   T10] 
[ 2856.858059][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2856.858059][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2856.858059][   T10]      ipv6_find_idev+0x102/0x170
[ 2856.858059][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2856.858059][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2856.858059][   T10]      netlink_rcv_skb+0x130/0x360
[ 2856.858059][   T10]      netlink_unicast+0x449/0x710
[ 2856.858059][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2856.858059][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2856.858059][   T10]      ___sys_sendmsg+0xee/0x170
[ 2856.858059][   T10]      __sys_sendmsg+0xcd/0x170
[ 2856.858059][   T10]      do_syscall_64+0xc6/0x1e0
[ 2856.858059][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2856.858059][   T10] 
[ 2856.859628][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2856.859628][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2856.859628][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2856.859628][   T10]      ipv6_find_idev+0x102/0x170
[ 2856.859628][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2856.859628][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2856.859628][   T10]      netlink_rcv_skb+0x130/0x360
[ 2856.859628][   T10]      netlink_unicast+0x449/0x710
[ 2856.859628][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2856.859628][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2856.859628][   T10]      ___sys_sendmsg+0xee/0x170
[ 2856.859628][   T10]      __sys_sendmsg+0xcd/0x170
[ 2856.859628][   T10]      do_syscall_64+0xc6/0x1e0
[ 2856.859628][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2856.859628][   T10] 
[ 2856.861351][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2856.861601][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2856.861601][   T10]      dst_init+0x84/0x4a0
[ 2856.861601][   T10]      dst_alloc+0x97/0x150
[ 2856.861601][   T10]      ip6_dst_alloc+0x23/0x90
[ 2856.861601][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2856.861601][   T10]      ip6_pol_route+0x56f/0x840
[ 2856.861601][   T10]      fib6_rule_lookup+0x456/0x630
[ 2856.861601][   T10]      ip6_route_input+0x59c/0xa50
[ 2856.861601][   T10]      ipv6_rcv+0x397/0x810
[ 2856.861601][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2856.861601][   T10]      process_backlog+0x101/0x620
[ 2856.861601][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2856.861601][   T10]      net_rx_action+0x495/0xbe0
[ 2856.861601][   T10]      __do_softirq+0x1b5/0x7f6
[ 2856.861601][   T10] 
[ 2856.863259][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2856.863259][   T10]      netdev_get_by_index+0x5e/0x80
[ 2856.863259][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2856.863259][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2856.863259][   T10]      ip6_route_add+0x1c/0x140
[ 2856.863259][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2856.863259][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2856.863259][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2856.863259][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2856.863259][   T10]      netlink_rcv_skb+0x130/0x360
[ 2856.863259][   T10]      netlink_unicast+0x449/0x710
[ 2856.863259][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2856.863259][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2856.863259][   T10]      ___sys_sendmsg+0xee/0x170
[ 2856.863259][   T10]      __sys_sendmsg+0xcd/0x170
[ 2856.863259][   T10]      do_syscall_64+0xc6/0x1e0
[ 2856.863259][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2856.863259][   T10] 
[ 2856.865283][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2856.865283][   T10]      netdev_get_by_index+0x5e/0x80
[ 2856.865283][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2856.865283][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2856.865283][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2856.865283][   T10]      ipv6_add_addr+0x411/0x2000
[ 2856.865283][   T10]      inet6_addr_add+0x30e/0xa40
[ 2856.865283][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2856.865283][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2856.865283][   T10]      netlink_rcv_skb+0x130/0x360
[ 2856.865283][   T10]      netlink_unicast+0x449/0x710
[ 2856.865283][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2856.865283][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2856.865283][   T10]      ___sys_sendmsg+0xee/0x170
[ 2856.865283][   T10]      __sys_sendmsg+0xcd/0x170
[ 2856.865283][   T10]      do_syscall_64+0xc6/0x1e0
[ 2856.865283][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2856.865283][   T10] 
[ 2856.867323][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2856.867323][   T10]      netdev_get_by_index+0x5e/0x80
[ 2856.867323][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2856.867323][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2856.867323][   T10]      ip6_route_add+0x1c/0x140
[ 2856.867323][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2856.867323][   T10]      addrconf_add_dev+0xe2/0x170
[ 2856.867323][   T10]      inet6_addr_add+0x12f/0xa40
[ 2856.867323][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2856.867323][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2856.867323][   T10]      netlink_rcv_skb+0x130/0x360
[ 2856.867323][   T10]      netlink_unicast+0x449/0x710
[ 2856.867323][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2856.867323][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2856.867323][   T10]      ___sys_sendmsg+0xee/0x170
[ 2856.867323][   T10]      __sys_sendmsg+0xcd/0x170
[ 2856.867323][   T10]      do_syscall_64+0xc6/0x1e0
[ 2856.867323][   T10] 
[ 2856.869328][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2856.869328][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2856.869328][   T10]      ipv6_find_idev+0x102/0x170
[ 2856.869328][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2856.869328][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2856.869328][   T10]      netlink_rcv_skb+0x130/0x360
[ 2856.869328][   T10]      netlink_unicast+0x449/0x710
[ 2856.869328][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2856.869328][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2856.869328][   T10]      ___sys_sendmsg+0xee/0x170
[ 2856.869328][   T10]      __sys_sendmsg+0xcd/0x170
[ 2856.869328][   T10]      do_syscall_64+0xc6/0x1e0
[ 2856.869328][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2856.869328][   T10] 
[ 2856.870886][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2856.870886][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2856.870886][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2856.870886][   T10]      ipv6_find_idev+0x102/0x170
[ 2856.870886][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2856.870886][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2856.870886][   T10]      netlink_rcv_skb+0x130/0x360
[ 2856.870886][   T10]      netlink_unicast+0x449/0x710
[ 2856.870886][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2856.870886][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2856.870886][   T10]      ___sys_sendmsg+0xee/0x170
[ 2856.870886][   T10]      __sys_sendmsg+0xcd/0x170
[ 2856.870886][   T10]      do_syscall_64+0xc6/0x1e0
[ 2856.870886][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2856.870886][   T10] 
[ 2866.889806][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2866.890272][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2866.890272][   T10]      dst_init+0x84/0x4a0
[ 2866.890272][   T10]      dst_alloc+0x97/0x150
[ 2866.890272][   T10]      ip6_dst_alloc+0x23/0x90
[ 2866.890272][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2866.890272][   T10]      ip6_pol_route+0x56f/0x840
[ 2866.890272][   T10]      fib6_rule_lookup+0x456/0x630
[ 2866.890272][   T10]      ip6_route_input+0x59c/0xa50
[ 2866.890272][   T10]      ipv6_rcv+0x397/0x810
[ 2866.890272][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2866.890272][   T10]      process_backlog+0x101/0x620
[ 2866.890272][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2866.890272][   T10]      net_rx_action+0x495/0xbe0
[ 2866.890272][   T10]      __do_softirq+0x1b5/0x7f6
[ 2866.890272][   T10] 
[ 2866.891957][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2866.891957][   T10]      netdev_get_by_index+0x5e/0x80
[ 2866.891957][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2866.891957][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2866.891957][   T10]      ip6_route_add+0x1c/0x140
[ 2866.891957][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2866.891957][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2866.891957][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2866.891957][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2866.891957][   T10]      netlink_rcv_skb+0x130/0x360
[ 2866.891957][   T10]      netlink_unicast+0x449/0x710
[ 2866.891957][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2866.891957][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2866.891957][   T10]      ___sys_sendmsg+0xee/0x170
[ 2866.891957][   T10]      __sys_sendmsg+0xcd/0x170
[ 2866.891957][   T10]      do_syscall_64+0xc6/0x1e0
[ 2866.891957][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2866.891957][   T10] 
[ 2866.893968][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2866.893968][   T10]      netdev_get_by_index+0x5e/0x80
[ 2866.893968][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2866.893968][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2866.893968][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2866.893968][   T10]      ipv6_add_addr+0x411/0x2000
[ 2866.893968][   T10]      inet6_addr_add+0x30e/0xa40
[ 2866.893968][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2866.893968][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2866.893968][   T10]      netlink_rcv_skb+0x130/0x360
[ 2866.893968][   T10]      netlink_unicast+0x449/0x710
[ 2866.893968][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2866.893968][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2866.893968][   T10]      ___sys_sendmsg+0xee/0x170
[ 2866.893968][   T10]      __sys_sendmsg+0xcd/0x170
[ 2866.893968][   T10]      do_syscall_64+0xc6/0x1e0
[ 2866.893968][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2866.893968][   T10] 
[ 2866.895974][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2866.895974][   T10]      netdev_get_by_index+0x5e/0x80
[ 2866.895974][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2866.895974][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2866.895974][   T10]      ip6_route_add+0x1c/0x140
[ 2866.895974][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2866.895974][   T10]      addrconf_add_dev+0xe2/0x170
[ 2866.895974][   T10]      inet6_addr_add+0x12f/0xa40
[ 2866.895974][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2866.895974][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2866.895974][   T10]      netlink_rcv_skb+0x130/0x360
[ 2866.895974][   T10]      netlink_unicast+0x449/0x710
[ 2866.895974][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2866.895974][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2866.895974][   T10]      ___sys_sendmsg+0xee/0x170
[ 2866.895974][   T10]      __sys_sendmsg+0xcd/0x170
[ 2866.895974][   T10]      do_syscall_64+0xc6/0x1e0
[ 2866.895974][   T10] 
[ 2866.897942][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2866.897942][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2866.897942][   T10]      ipv6_find_idev+0x102/0x170
[ 2866.897942][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2866.897942][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2866.897942][   T10]      netlink_rcv_skb+0x130/0x360
[ 2866.897942][   T10]      netlink_unicast+0x449/0x710
[ 2866.897942][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2866.897942][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2866.897942][   T10]      ___sys_sendmsg+0xee/0x170
[ 2866.897942][   T10]      __sys_sendmsg+0xcd/0x170
[ 2866.897942][   T10]      do_syscall_64+0xc6/0x1e0
[ 2866.897942][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2866.897942][   T10] 
[ 2866.899493][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2866.899493][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2866.899493][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2866.899493][   T10]      ipv6_find_idev+0x102/0x170
[ 2866.899493][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2866.899493][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2866.899493][   T10]      netlink_rcv_skb+0x130/0x360
[ 2866.899493][   T10]      netlink_unicast+0x449/0x710
[ 2866.899493][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2866.899493][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2866.899493][   T10]      ___sys_sendmsg+0xee/0x170
[ 2866.899493][   T10]      __sys_sendmsg+0xcd/0x170
[ 2866.899493][   T10]      do_syscall_64+0xc6/0x1e0
[ 2866.899493][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2866.899493][   T10] 
[ 2866.901183][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2866.901421][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2866.901421][   T10]      dst_init+0x84/0x4a0
[ 2866.901421][   T10]      dst_alloc+0x97/0x150
[ 2866.901421][   T10]      ip6_dst_alloc+0x23/0x90
[ 2866.901421][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2866.901421][   T10]      ip6_pol_route+0x56f/0x840
[ 2866.901421][   T10]      fib6_rule_lookup+0x456/0x630
[ 2866.901421][   T10]      ip6_route_input+0x59c/0xa50
[ 2866.901421][   T10]      ipv6_rcv+0x397/0x810
[ 2866.901421][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2866.901421][   T10]      process_backlog+0x101/0x620
[ 2866.901421][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2866.901421][   T10]      net_rx_action+0x495/0xbe0
[ 2866.901421][   T10]      __do_softirq+0x1b5/0x7f6
[ 2866.901421][   T10] 
[ 2866.903061][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2866.903061][   T10]      netdev_get_by_index+0x5e/0x80
[ 2866.903061][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2866.903061][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2866.903061][   T10]      ip6_route_add+0x1c/0x140
[ 2866.903061][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2866.903061][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2866.903061][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2866.903061][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2866.903061][   T10]      netlink_rcv_skb+0x130/0x360
[ 2866.903061][   T10]      netlink_unicast+0x449/0x710
[ 2866.903061][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2866.903061][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2866.903061][   T10]      ___sys_sendmsg+0xee/0x170
[ 2866.903061][   T10]      __sys_sendmsg+0xcd/0x170
[ 2866.903061][   T10]      do_syscall_64+0xc6/0x1e0
[ 2866.903061][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2866.903061][   T10] 
[ 2866.905060][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2866.905060][   T10]      netdev_get_by_index+0x5e/0x80
[ 2866.905060][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2866.905060][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2866.905060][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2866.905060][   T10]      ipv6_add_addr+0x411/0x2000
[ 2866.905060][   T10]      inet6_addr_add+0x30e/0xa40
[ 2866.905060][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2866.905060][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2866.905060][   T10]      netlink_rcv_skb+0x130/0x360
[ 2866.905060][   T10]      netlink_unicast+0x449/0x710
[ 2866.905060][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2866.905060][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2866.905060][   T10]      ___sys_sendmsg+0xee/0x170
[ 2866.905060][   T10]      __sys_sendmsg+0xcd/0x170
[ 2866.905060][   T10]      do_syscall_64+0xc6/0x1e0
[ 2866.905060][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2866.905060][   T10] 
[ 2866.907066][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2866.907066][   T10]      netdev_get_by_index+0x5e/0x80
[ 2866.907066][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2866.907066][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2866.907066][   T10]      ip6_route_add+0x1c/0x140
[ 2866.907066][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2866.907066][   T10]      addrconf_add_dev+0xe2/0x170
[ 2866.907066][   T10]      inet6_addr_add+0x12f/0xa40
[ 2866.907066][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2866.907066][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2866.907066][   T10]      netlink_rcv_skb+0x130/0x360
[ 2866.907066][   T10]      netlink_unicast+0x449/0x710
[ 2866.907066][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2866.907066][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2866.907066][   T10]      ___sys_sendmsg+0xee/0x170
[ 2866.907066][   T10]      __sys_sendmsg+0xcd/0x170
[ 2866.907066][   T10]      do_syscall_64+0xc6/0x1e0
[ 2866.907066][   T10] 
[ 2866.909037][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2866.909037][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2866.909037][   T10]      ipv6_find_idev+0x102/0x170
[ 2866.909037][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2866.909037][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2866.909037][   T10]      netlink_rcv_skb+0x130/0x360
[ 2866.909037][   T10]      netlink_unicast+0x449/0x710
[ 2866.909037][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2866.909037][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2866.909037][   T10]      ___sys_sendmsg+0xee/0x170
[ 2866.909037][   T10]      __sys_sendmsg+0xcd/0x170
[ 2866.909037][   T10]      do_syscall_64+0xc6/0x1e0
[ 2866.909037][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2866.909037][   T10] 
[ 2866.910574][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2866.910574][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2866.910574][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2866.910574][   T10]      ipv6_find_idev+0x102/0x170
[ 2866.910574][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2866.910574][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2866.910574][   T10]      netlink_rcv_skb+0x130/0x360
[ 2866.910574][   T10]      netlink_unicast+0x449/0x710
[ 2866.910574][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2866.910574][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2866.910574][   T10]      ___sys_sendmsg+0xee/0x170
[ 2866.910574][   T10]      __sys_sendmsg+0xcd/0x170
[ 2866.910574][   T10]      do_syscall_64+0xc6/0x1e0
[ 2866.910574][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2866.910574][   T10] 
[ 2876.961784][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2876.962248][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2876.962248][   T10]      dst_init+0x84/0x4a0
[ 2876.962248][   T10]      dst_alloc+0x97/0x150
[ 2876.962248][   T10]      ip6_dst_alloc+0x23/0x90
[ 2876.962248][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2876.962248][   T10]      ip6_pol_route+0x56f/0x840
[ 2876.962248][   T10]      fib6_rule_lookup+0x456/0x630
[ 2876.962248][   T10]      ip6_route_input+0x59c/0xa50
[ 2876.962248][   T10]      ipv6_rcv+0x397/0x810
[ 2876.962248][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2876.962248][   T10]      process_backlog+0x101/0x620
[ 2876.962248][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2876.962248][   T10]      net_rx_action+0x495/0xbe0
[ 2876.962248][   T10]      __do_softirq+0x1b5/0x7f6
[ 2876.962248][   T10] 
[ 2876.963924][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2876.963924][   T10]      netdev_get_by_index+0x5e/0x80
[ 2876.963924][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2876.963924][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2876.963924][   T10]      ip6_route_add+0x1c/0x140
[ 2876.963924][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2876.963924][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2876.963924][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2876.963924][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2876.963924][   T10]      netlink_rcv_skb+0x130/0x360
[ 2876.963924][   T10]      netlink_unicast+0x449/0x710
[ 2876.963924][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2876.963924][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2876.963924][   T10]      ___sys_sendmsg+0xee/0x170
[ 2876.963924][   T10]      __sys_sendmsg+0xcd/0x170
[ 2876.963924][   T10]      do_syscall_64+0xc6/0x1e0
[ 2876.963924][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2876.963924][   T10] 
[ 2876.965928][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2876.965928][   T10]      netdev_get_by_index+0x5e/0x80
[ 2876.965928][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2876.965928][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2876.965928][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2876.965928][   T10]      ipv6_add_addr+0x411/0x2000
[ 2876.965928][   T10]      inet6_addr_add+0x30e/0xa40
[ 2876.965928][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2876.965928][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2876.965928][   T10]      netlink_rcv_skb+0x130/0x360
[ 2876.965928][   T10]      netlink_unicast+0x449/0x710
[ 2876.965928][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2876.965928][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2876.965928][   T10]      ___sys_sendmsg+0xee/0x170
[ 2876.965928][   T10]      __sys_sendmsg+0xcd/0x170
[ 2876.965928][   T10]      do_syscall_64+0xc6/0x1e0
[ 2876.965928][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2876.965928][   T10] 
[ 2876.967931][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2876.967931][   T10]      netdev_get_by_index+0x5e/0x80
[ 2876.967931][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2876.967931][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2876.967931][   T10]      ip6_route_add+0x1c/0x140
[ 2876.967931][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2876.967931][   T10]      addrconf_add_dev+0xe2/0x170
[ 2876.967931][   T10]      inet6_addr_add+0x12f/0xa40
[ 2876.967931][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2876.967931][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2876.967931][   T10]      netlink_rcv_skb+0x130/0x360
[ 2876.967931][   T10]      netlink_unicast+0x449/0x710
[ 2876.967931][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2876.967931][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2876.967931][   T10]      ___sys_sendmsg+0xee/0x170
[ 2876.967931][   T10]      __sys_sendmsg+0xcd/0x170
[ 2876.967931][   T10]      do_syscall_64+0xc6/0x1e0
[ 2876.967931][   T10] 
[ 2876.969909][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2876.969909][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2876.969909][   T10]      ipv6_find_idev+0x102/0x170
[ 2876.969909][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2876.969909][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2876.969909][   T10]      netlink_rcv_skb+0x130/0x360
[ 2876.969909][   T10]      netlink_unicast+0x449/0x710
[ 2876.969909][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2876.969909][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2876.969909][   T10]      ___sys_sendmsg+0xee/0x170
[ 2876.969909][   T10]      __sys_sendmsg+0xcd/0x170
[ 2876.969909][   T10]      do_syscall_64+0xc6/0x1e0
[ 2876.969909][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2876.969909][   T10] 
[ 2876.971450][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2876.971450][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2876.971450][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2876.971450][   T10]      ipv6_find_idev+0x102/0x170
[ 2876.971450][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2876.971450][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2876.971450][   T10]      netlink_rcv_skb+0x130/0x360
[ 2876.971450][   T10]      netlink_unicast+0x449/0x710
[ 2876.971450][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2876.971450][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2876.971450][   T10]      ___sys_sendmsg+0xee/0x170
[ 2876.971450][   T10]      __sys_sendmsg+0xcd/0x170
[ 2876.971450][   T10]      do_syscall_64+0xc6/0x1e0
[ 2876.971450][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2876.971450][   T10] 
[ 2876.973138][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2876.973381][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2876.973381][   T10]      dst_init+0x84/0x4a0
[ 2876.973381][   T10]      dst_alloc+0x97/0x150
[ 2876.973381][   T10]      ip6_dst_alloc+0x23/0x90
[ 2876.973381][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2876.973381][   T10]      ip6_pol_route+0x56f/0x840
[ 2876.973381][   T10]      fib6_rule_lookup+0x456/0x630
[ 2876.973381][   T10]      ip6_route_input+0x59c/0xa50
[ 2876.973381][   T10]      ipv6_rcv+0x397/0x810
[ 2876.973381][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2876.973381][   T10]      process_backlog+0x101/0x620
[ 2876.973381][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2876.973381][   T10]      net_rx_action+0x495/0xbe0
[ 2876.973381][   T10]      __do_softirq+0x1b5/0x7f6
[ 2876.973381][   T10] 
[ 2876.975019][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2876.975019][   T10]      netdev_get_by_index+0x5e/0x80
[ 2876.975019][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2876.975019][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2876.975019][   T10]      ip6_route_add+0x1c/0x140
[ 2876.975019][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2876.975019][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2876.975019][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2876.975019][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2876.975019][   T10]      netlink_rcv_skb+0x130/0x360
[ 2876.975019][   T10]      netlink_unicast+0x449/0x710
[ 2876.975019][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2876.975019][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2876.975019][   T10]      ___sys_sendmsg+0xee/0x170
[ 2876.975019][   T10]      __sys_sendmsg+0xcd/0x170
[ 2876.975019][   T10]      do_syscall_64+0xc6/0x1e0
[ 2876.975019][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2876.975019][   T10] 
[ 2876.977013][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2876.977013][   T10]      netdev_get_by_index+0x5e/0x80
[ 2876.977013][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2876.977013][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2876.977013][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2876.977013][   T10]      ipv6_add_addr+0x411/0x2000
[ 2876.977013][   T10]      inet6_addr_add+0x30e/0xa40
[ 2876.977013][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2876.977013][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2876.977013][   T10]      netlink_rcv_skb+0x130/0x360
[ 2876.977013][   T10]      netlink_unicast+0x449/0x710
[ 2876.977013][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2876.977013][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2876.977013][   T10]      ___sys_sendmsg+0xee/0x170
[ 2876.977013][   T10]      __sys_sendmsg+0xcd/0x170
[ 2876.977013][   T10]      do_syscall_64+0xc6/0x1e0
[ 2876.977013][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2876.977013][   T10] 
[ 2876.979009][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2876.979009][   T10]      netdev_get_by_index+0x5e/0x80
[ 2876.979009][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2876.979009][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2876.979009][   T10]      ip6_route_add+0x1c/0x140
[ 2876.979009][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2876.979009][   T10]      addrconf_add_dev+0xe2/0x170
[ 2876.979009][   T10]      inet6_addr_add+0x12f/0xa40
[ 2876.979009][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2876.979009][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2876.979009][   T10]      netlink_rcv_skb+0x130/0x360
[ 2876.979009][   T10]      netlink_unicast+0x449/0x710
[ 2876.979009][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2876.979009][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2876.979009][   T10]      ___sys_sendmsg+0xee/0x170
[ 2876.979009][   T10]      __sys_sendmsg+0xcd/0x170
[ 2876.979009][   T10]      do_syscall_64+0xc6/0x1e0
[ 2876.979009][   T10] 
[ 2876.980981][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2876.980981][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2876.980981][   T10]      ipv6_find_idev+0x102/0x170
[ 2876.980981][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2876.980981][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2876.980981][   T10]      netlink_rcv_skb+0x130/0x360
[ 2876.980981][   T10]      netlink_unicast+0x449/0x710
[ 2876.980981][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2876.980981][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2876.980981][   T10]      ___sys_sendmsg+0xee/0x170
[ 2876.980981][   T10]      __sys_sendmsg+0xcd/0x170
[ 2876.980981][   T10]      do_syscall_64+0xc6/0x1e0
[ 2876.980981][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2876.980981][   T10] 
[ 2876.982512][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2876.982512][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2876.982512][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2876.982512][   T10]      ipv6_find_idev+0x102/0x170
[ 2876.982512][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2876.982512][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2876.982512][   T10]      netlink_rcv_skb+0x130/0x360
[ 2876.982512][   T10]      netlink_unicast+0x449/0x710
[ 2876.982512][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2876.982512][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2876.982512][   T10]      ___sys_sendmsg+0xee/0x170
[ 2876.982512][   T10]      __sys_sendmsg+0xcd/0x170
[ 2876.982512][   T10]      do_syscall_64+0xc6/0x1e0
[ 2876.982512][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2876.982512][   T10] 
[ 2887.233827][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2887.234277][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2887.234277][   T10]      dst_init+0x84/0x4a0
[ 2887.234277][   T10]      dst_alloc+0x97/0x150
[ 2887.234277][   T10]      ip6_dst_alloc+0x23/0x90
[ 2887.234277][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2887.234277][   T10]      ip6_pol_route+0x56f/0x840
[ 2887.234277][   T10]      fib6_rule_lookup+0x456/0x630
[ 2887.234277][   T10]      ip6_route_input+0x59c/0xa50
[ 2887.234277][   T10]      ipv6_rcv+0x397/0x810
[ 2887.234277][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2887.234277][   T10]      process_backlog+0x101/0x620
[ 2887.234277][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2887.234277][   T10]      net_rx_action+0x495/0xbe0
[ 2887.234277][   T10]      __do_softirq+0x1b5/0x7f6
[ 2887.234277][   T10] 
[ 2887.235958][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2887.235958][   T10]      netdev_get_by_index+0x5e/0x80
[ 2887.235958][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2887.235958][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2887.235958][   T10]      ip6_route_add+0x1c/0x140
[ 2887.235958][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2887.235958][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2887.235958][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2887.235958][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2887.235958][   T10]      netlink_rcv_skb+0x130/0x360
[ 2887.235958][   T10]      netlink_unicast+0x449/0x710
[ 2887.235958][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2887.235958][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2887.235958][   T10]      ___sys_sendmsg+0xee/0x170
[ 2887.235958][   T10]      __sys_sendmsg+0xcd/0x170
[ 2887.235958][   T10]      do_syscall_64+0xc6/0x1e0
[ 2887.235958][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2887.235958][   T10] 
[ 2887.237967][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2887.237967][   T10]      netdev_get_by_index+0x5e/0x80
[ 2887.237967][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2887.237967][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2887.237967][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2887.237967][   T10]      ipv6_add_addr+0x411/0x2000
[ 2887.237967][   T10]      inet6_addr_add+0x30e/0xa40
[ 2887.237967][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2887.237967][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2887.237967][   T10]      netlink_rcv_skb+0x130/0x360
[ 2887.237967][   T10]      netlink_unicast+0x449/0x710
[ 2887.237967][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2887.237967][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2887.237967][   T10]      ___sys_sendmsg+0xee/0x170
[ 2887.237967][   T10]      __sys_sendmsg+0xcd/0x170
[ 2887.237967][   T10]      do_syscall_64+0xc6/0x1e0
[ 2887.237967][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2887.237967][   T10] 
[ 2887.239974][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2887.239974][   T10]      netdev_get_by_index+0x5e/0x80
[ 2887.239974][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2887.239974][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2887.239974][   T10]      ip6_route_add+0x1c/0x140
[ 2887.239974][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2887.239974][   T10]      addrconf_add_dev+0xe2/0x170
[ 2887.239974][   T10]      inet6_addr_add+0x12f/0xa40
[ 2887.239974][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2887.239974][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2887.239974][   T10]      netlink_rcv_skb+0x130/0x360
[ 2887.239974][   T10]      netlink_unicast+0x449/0x710
[ 2887.239974][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2887.239974][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2887.239974][   T10]      ___sys_sendmsg+0xee/0x170
[ 2887.239974][   T10]      __sys_sendmsg+0xcd/0x170
[ 2887.239974][   T10]      do_syscall_64+0xc6/0x1e0
[ 2887.239974][   T10] 
[ 2887.241930][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2887.241930][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2887.241930][   T10]      ipv6_find_idev+0x102/0x170
[ 2887.241930][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2887.241930][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2887.241930][   T10]      netlink_rcv_skb+0x130/0x360
[ 2887.241930][   T10]      netlink_unicast+0x449/0x710
[ 2887.241930][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2887.241930][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2887.241930][   T10]      ___sys_sendmsg+0xee/0x170
[ 2887.241930][   T10]      __sys_sendmsg+0xcd/0x170
[ 2887.241930][   T10]      do_syscall_64+0xc6/0x1e0
[ 2887.241930][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2887.241930][   T10] 
[ 2887.243467][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2887.243467][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2887.243467][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2887.243467][   T10]      ipv6_find_idev+0x102/0x170
[ 2887.243467][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2887.243467][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2887.243467][   T10]      netlink_rcv_skb+0x130/0x360
[ 2887.243467][   T10]      netlink_unicast+0x449/0x710
[ 2887.243467][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2887.243467][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2887.243467][   T10]      ___sys_sendmsg+0xee/0x170
[ 2887.243467][   T10]      __sys_sendmsg+0xcd/0x170
[ 2887.243467][   T10]      do_syscall_64+0xc6/0x1e0
[ 2887.243467][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2887.243467][   T10] 
[ 2887.245150][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2887.245393][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2887.245393][   T10]      dst_init+0x84/0x4a0
[ 2887.245393][   T10]      dst_alloc+0x97/0x150
[ 2887.245393][   T10]      ip6_dst_alloc+0x23/0x90
[ 2887.245393][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2887.245393][   T10]      ip6_pol_route+0x56f/0x840
[ 2887.245393][   T10]      fib6_rule_lookup+0x456/0x630
[ 2887.245393][   T10]      ip6_route_input+0x59c/0xa50
[ 2887.245393][   T10]      ipv6_rcv+0x397/0x810
[ 2887.245393][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2887.245393][   T10]      process_backlog+0x101/0x620
[ 2887.245393][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2887.245393][   T10]      net_rx_action+0x495/0xbe0
[ 2887.245393][   T10]      __do_softirq+0x1b5/0x7f6
[ 2887.245393][   T10] 
[ 2887.247027][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2887.247027][   T10]      netdev_get_by_index+0x5e/0x80
[ 2887.247027][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2887.247027][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2887.247027][   T10]      ip6_route_add+0x1c/0x140
[ 2887.247027][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2887.247027][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2887.247027][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2887.247027][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2887.247027][   T10]      netlink_rcv_skb+0x130/0x360
[ 2887.247027][   T10]      netlink_unicast+0x449/0x710
[ 2887.247027][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2887.247027][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2887.247027][   T10]      ___sys_sendmsg+0xee/0x170
[ 2887.247027][   T10]      __sys_sendmsg+0xcd/0x170
[ 2887.247027][   T10]      do_syscall_64+0xc6/0x1e0
[ 2887.247027][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2887.247027][   T10] 
[ 2887.249020][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2887.249020][   T10]      netdev_get_by_index+0x5e/0x80
[ 2887.249020][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2887.249020][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2887.249020][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2887.249020][   T10]      ipv6_add_addr+0x411/0x2000
[ 2887.249020][   T10]      inet6_addr_add+0x30e/0xa40
[ 2887.249020][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2887.249020][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2887.249020][   T10]      netlink_rcv_skb+0x130/0x360
[ 2887.249020][   T10]      netlink_unicast+0x449/0x710
[ 2887.249020][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2887.249020][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2887.249020][   T10]      ___sys_sendmsg+0xee/0x170
[ 2887.249020][   T10]      __sys_sendmsg+0xcd/0x170
[ 2887.249020][   T10]      do_syscall_64+0xc6/0x1e0
[ 2887.249020][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2887.249020][   T10] 
[ 2887.251033][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2887.251033][   T10]      netdev_get_by_index+0x5e/0x80
[ 2887.251033][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2887.251033][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2887.251033][   T10]      ip6_route_add+0x1c/0x140
[ 2887.251033][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2887.251033][   T10]      addrconf_add_dev+0xe2/0x170
[ 2887.251033][   T10]      inet6_addr_add+0x12f/0xa40
[ 2887.251033][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2887.251033][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2887.251033][   T10]      netlink_rcv_skb+0x130/0x360
[ 2887.251033][   T10]      netlink_unicast+0x449/0x710
[ 2887.251033][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2887.251033][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2887.251033][   T10]      ___sys_sendmsg+0xee/0x170
[ 2887.251033][   T10]      __sys_sendmsg+0xcd/0x170
[ 2887.251033][   T10]      do_syscall_64+0xc6/0x1e0
[ 2887.251033][   T10] 
[ 2887.252988][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2887.252988][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2887.252988][   T10]      ipv6_find_idev+0x102/0x170
[ 2887.252988][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2887.252988][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2887.252988][   T10]      netlink_rcv_skb+0x130/0x360
[ 2887.252988][   T10]      netlink_unicast+0x449/0x710
[ 2887.252988][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2887.252988][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2887.252988][   T10]      ___sys_sendmsg+0xee/0x170
[ 2887.252988][   T10]      __sys_sendmsg+0xcd/0x170
[ 2887.252988][   T10]      do_syscall_64+0xc6/0x1e0
[ 2887.252988][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2887.252988][   T10] 
[ 2887.254531][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2887.254531][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2887.254531][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2887.254531][   T10]      ipv6_find_idev+0x102/0x170
[ 2887.254531][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2887.254531][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2887.254531][   T10]      netlink_rcv_skb+0x130/0x360
[ 2887.254531][   T10]      netlink_unicast+0x449/0x710
[ 2887.254531][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2887.254531][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2887.254531][   T10]      ___sys_sendmsg+0xee/0x170
[ 2887.254531][   T10]      __sys_sendmsg+0xcd/0x170
[ 2887.254531][   T10]      do_syscall_64+0xc6/0x1e0
[ 2887.254531][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2887.254531][   T10] 
[ 2897.505783][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2897.506250][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2897.506250][   T10]      dst_init+0x84/0x4a0
[ 2897.506250][   T10]      dst_alloc+0x97/0x150
[ 2897.506250][   T10]      ip6_dst_alloc+0x23/0x90
[ 2897.506250][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2897.506250][   T10]      ip6_pol_route+0x56f/0x840
[ 2897.506250][   T10]      fib6_rule_lookup+0x456/0x630
[ 2897.506250][   T10]      ip6_route_input+0x59c/0xa50
[ 2897.506250][   T10]      ipv6_rcv+0x397/0x810
[ 2897.506250][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2897.506250][   T10]      process_backlog+0x101/0x620
[ 2897.506250][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2897.506250][   T10]      net_rx_action+0x495/0xbe0
[ 2897.506250][   T10]      __do_softirq+0x1b5/0x7f6
[ 2897.506250][   T10] 
[ 2897.507928][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2897.507928][   T10]      netdev_get_by_index+0x5e/0x80
[ 2897.507928][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2897.507928][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2897.507928][   T10]      ip6_route_add+0x1c/0x140
[ 2897.507928][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2897.507928][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2897.507928][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2897.507928][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2897.507928][   T10]      netlink_rcv_skb+0x130/0x360
[ 2897.507928][   T10]      netlink_unicast+0x449/0x710
[ 2897.507928][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2897.507928][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2897.507928][   T10]      ___sys_sendmsg+0xee/0x170
[ 2897.507928][   T10]      __sys_sendmsg+0xcd/0x170
[ 2897.507928][   T10]      do_syscall_64+0xc6/0x1e0
[ 2897.507928][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2897.507928][   T10] 
[ 2897.509948][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2897.509948][   T10]      netdev_get_by_index+0x5e/0x80
[ 2897.509948][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2897.509948][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2897.509948][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2897.509948][   T10]      ipv6_add_addr+0x411/0x2000
[ 2897.509948][   T10]      inet6_addr_add+0x30e/0xa40
[ 2897.509948][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2897.509948][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2897.509948][   T10]      netlink_rcv_skb+0x130/0x360
[ 2897.509948][   T10]      netlink_unicast+0x449/0x710
[ 2897.509948][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2897.509948][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2897.509948][   T10]      ___sys_sendmsg+0xee/0x170
[ 2897.509948][   T10]      __sys_sendmsg+0xcd/0x170
[ 2897.509948][   T10]      do_syscall_64+0xc6/0x1e0
[ 2897.509948][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2897.509948][   T10] 
[ 2897.511947][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2897.511947][   T10]      netdev_get_by_index+0x5e/0x80
[ 2897.511947][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2897.511947][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2897.511947][   T10]      ip6_route_add+0x1c/0x140
[ 2897.511947][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2897.511947][   T10]      addrconf_add_dev+0xe2/0x170
[ 2897.511947][   T10]      inet6_addr_add+0x12f/0xa40
[ 2897.511947][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2897.511947][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2897.511947][   T10]      netlink_rcv_skb+0x130/0x360
[ 2897.511947][   T10]      netlink_unicast+0x449/0x710
[ 2897.511947][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2897.511947][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2897.511947][   T10]      ___sys_sendmsg+0xee/0x170
[ 2897.511947][   T10]      __sys_sendmsg+0xcd/0x170
[ 2897.511947][   T10]      do_syscall_64+0xc6/0x1e0
[ 2897.511947][   T10] 
[ 2897.514283][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2897.514283][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2897.514283][   T10]      ipv6_find_idev+0x102/0x170
[ 2897.514283][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2897.514283][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2897.514283][   T10]      netlink_rcv_skb+0x130/0x360
[ 2897.514283][   T10]      netlink_unicast+0x449/0x710
[ 2897.514283][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2897.514283][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2897.514283][   T10]      ___sys_sendmsg+0xee/0x170
[ 2897.514283][   T10]      __sys_sendmsg+0xcd/0x170
[ 2897.514283][   T10]      do_syscall_64+0xc6/0x1e0
[ 2897.514283][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2897.514283][   T10] 
[ 2897.515817][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2897.515817][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2897.515817][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2897.515817][   T10]      ipv6_find_idev+0x102/0x170
[ 2897.515817][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2897.515817][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2897.515817][   T10]      netlink_rcv_skb+0x130/0x360
[ 2897.515817][   T10]      netlink_unicast+0x449/0x710
[ 2897.515817][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2897.515817][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2897.515817][   T10]      ___sys_sendmsg+0xee/0x170
[ 2897.515817][   T10]      __sys_sendmsg+0xcd/0x170
[ 2897.515817][   T10]      do_syscall_64+0xc6/0x1e0
[ 2897.515817][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2897.515817][   T10] 
[ 2897.517507][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2897.517770][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2897.517770][   T10]      dst_init+0x84/0x4a0
[ 2897.517770][   T10]      dst_alloc+0x97/0x150
[ 2897.517770][   T10]      ip6_dst_alloc+0x23/0x90
[ 2897.517770][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2897.517770][   T10]      ip6_pol_route+0x56f/0x840
[ 2897.517770][   T10]      fib6_rule_lookup+0x456/0x630
[ 2897.517770][   T10]      ip6_route_input+0x59c/0xa50
[ 2897.517770][   T10]      ipv6_rcv+0x397/0x810
[ 2897.517770][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2897.517770][   T10]      process_backlog+0x101/0x620
[ 2897.517770][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2897.517770][   T10]      net_rx_action+0x495/0xbe0
[ 2897.517770][   T10]      __do_softirq+0x1b5/0x7f6
[ 2897.517770][   T10] 
[ 2897.519410][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2897.519410][   T10]      netdev_get_by_index+0x5e/0x80
[ 2897.519410][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2897.519410][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2897.519410][   T10]      ip6_route_add+0x1c/0x140
[ 2897.519410][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2897.519410][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2897.519410][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2897.519410][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2897.519410][   T10]      netlink_rcv_skb+0x130/0x360
[ 2897.519410][   T10]      netlink_unicast+0x449/0x710
[ 2897.519410][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2897.519410][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2897.519410][   T10]      ___sys_sendmsg+0xee/0x170
[ 2897.519410][   T10]      __sys_sendmsg+0xcd/0x170
[ 2897.519410][   T10]      do_syscall_64+0xc6/0x1e0
[ 2897.519410][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2897.519410][   T10] 
[ 2897.521403][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2897.521403][   T10]      netdev_get_by_index+0x5e/0x80
[ 2897.521403][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2897.521403][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2897.521403][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2897.521403][   T10]      ipv6_add_addr+0x411/0x2000
[ 2897.521403][   T10]      inet6_addr_add+0x30e/0xa40
[ 2897.521403][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2897.521403][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2897.521403][   T10]      netlink_rcv_skb+0x130/0x360
[ 2897.521403][   T10]      netlink_unicast+0x449/0x710
[ 2897.521403][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2897.521403][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2897.521403][   T10]      ___sys_sendmsg+0xee/0x170
[ 2897.521403][   T10]      __sys_sendmsg+0xcd/0x170
[ 2897.521403][   T10]      do_syscall_64+0xc6/0x1e0
[ 2897.521403][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2897.521403][   T10] 
[ 2897.523401][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2897.523401][   T10]      netdev_get_by_index+0x5e/0x80
[ 2897.523401][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2897.523401][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2897.523401][   T10]      ip6_route_add+0x1c/0x140
[ 2897.523401][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2897.523401][   T10]      addrconf_add_dev+0xe2/0x170
[ 2897.523401][   T10]      inet6_addr_add+0x12f/0xa40
[ 2897.523401][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2897.523401][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2897.523401][   T10]      netlink_rcv_skb+0x130/0x360
[ 2897.523401][   T10]      netlink_unicast+0x449/0x710
[ 2897.523401][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2897.523401][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2897.523401][   T10]      ___sys_sendmsg+0xee/0x170
[ 2897.523401][   T10]      __sys_sendmsg+0xcd/0x170
[ 2897.523401][   T10]      do_syscall_64+0xc6/0x1e0
[ 2897.523401][   T10] 
[ 2897.525356][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2897.525356][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2897.525356][   T10]      ipv6_find_idev+0x102/0x170
[ 2897.525356][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2897.525356][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2897.525356][   T10]      netlink_rcv_skb+0x130/0x360
[ 2897.525356][   T10]      netlink_unicast+0x449/0x710
[ 2897.525356][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2897.525356][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2897.525356][   T10]      ___sys_sendmsg+0xee/0x170
[ 2897.525356][   T10]      __sys_sendmsg+0xcd/0x170
[ 2897.525356][   T10]      do_syscall_64+0xc6/0x1e0
[ 2897.525356][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2897.525356][   T10] 
[ 2897.526892][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2897.526892][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2897.526892][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2897.526892][   T10]      ipv6_find_idev+0x102/0x170
[ 2897.526892][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2897.526892][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2897.526892][   T10]      netlink_rcv_skb+0x130/0x360
[ 2897.526892][   T10]      netlink_unicast+0x449/0x710
[ 2897.526892][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2897.526892][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2897.526892][   T10]      ___sys_sendmsg+0xee/0x170
[ 2897.526892][   T10]      __sys_sendmsg+0xcd/0x170
[ 2897.526892][   T10]      do_syscall_64+0xc6/0x1e0
[ 2897.526892][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2897.526892][   T10] 
[ 2907.777780][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2907.778236][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2907.778236][   T10]      dst_init+0x84/0x4a0
[ 2907.778236][   T10]      dst_alloc+0x97/0x150
[ 2907.778236][   T10]      ip6_dst_alloc+0x23/0x90
[ 2907.778236][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2907.778236][   T10]      ip6_pol_route+0x56f/0x840
[ 2907.778236][   T10]      fib6_rule_lookup+0x456/0x630
[ 2907.778236][   T10]      ip6_route_input+0x59c/0xa50
[ 2907.778236][   T10]      ipv6_rcv+0x397/0x810
[ 2907.778236][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2907.778236][   T10]      process_backlog+0x101/0x620
[ 2907.778236][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2907.778236][   T10]      net_rx_action+0x495/0xbe0
[ 2907.778236][   T10]      __do_softirq+0x1b5/0x7f6
[ 2907.778236][   T10] 
[ 2907.779918][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2907.779918][   T10]      netdev_get_by_index+0x5e/0x80
[ 2907.779918][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2907.779918][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2907.779918][   T10]      ip6_route_add+0x1c/0x140
[ 2907.779918][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2907.779918][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2907.779918][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2907.779918][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2907.779918][   T10]      netlink_rcv_skb+0x130/0x360
[ 2907.779918][   T10]      netlink_unicast+0x449/0x710
[ 2907.779918][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2907.779918][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2907.779918][   T10]      ___sys_sendmsg+0xee/0x170
[ 2907.779918][   T10]      __sys_sendmsg+0xcd/0x170
[ 2907.779918][   T10]      do_syscall_64+0xc6/0x1e0
[ 2907.779918][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2907.779918][   T10] 
[ 2907.781920][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2907.781920][   T10]      netdev_get_by_index+0x5e/0x80
[ 2907.781920][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2907.781920][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2907.781920][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2907.781920][   T10]      ipv6_add_addr+0x411/0x2000
[ 2907.781920][   T10]      inet6_addr_add+0x30e/0xa40
[ 2907.781920][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2907.781920][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2907.781920][   T10]      netlink_rcv_skb+0x130/0x360
[ 2907.781920][   T10]      netlink_unicast+0x449/0x710
[ 2907.781920][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2907.781920][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2907.781920][   T10]      ___sys_sendmsg+0xee/0x170
[ 2907.781920][   T10]      __sys_sendmsg+0xcd/0x170
[ 2907.781920][   T10]      do_syscall_64+0xc6/0x1e0
[ 2907.781920][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2907.781920][   T10] 
[ 2907.783912][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2907.783912][   T10]      netdev_get_by_index+0x5e/0x80
[ 2907.783912][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2907.783912][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2907.783912][   T10]      ip6_route_add+0x1c/0x140
[ 2907.783912][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2907.783912][   T10]      addrconf_add_dev+0xe2/0x170
[ 2907.783912][   T10]      inet6_addr_add+0x12f/0xa40
[ 2907.783912][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2907.783912][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2907.783912][   T10]      netlink_rcv_skb+0x130/0x360
[ 2907.783912][   T10]      netlink_unicast+0x449/0x710
[ 2907.783912][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2907.783912][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2907.783912][   T10]      ___sys_sendmsg+0xee/0x170
[ 2907.783912][   T10]      __sys_sendmsg+0xcd/0x170
[ 2907.783912][   T10]      do_syscall_64+0xc6/0x1e0
[ 2907.783912][   T10] 
[ 2907.785866][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2907.785866][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2907.785866][   T10]      ipv6_find_idev+0x102/0x170
[ 2907.785866][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2907.785866][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2907.785866][   T10]      netlink_rcv_skb+0x130/0x360
[ 2907.785866][   T10]      netlink_unicast+0x449/0x710
[ 2907.785866][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2907.785866][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2907.785866][   T10]      ___sys_sendmsg+0xee/0x170
[ 2907.785866][   T10]      __sys_sendmsg+0xcd/0x170
[ 2907.785866][   T10]      do_syscall_64+0xc6/0x1e0
[ 2907.785866][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2907.785866][   T10] 
[ 2907.787412][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2907.787412][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2907.787412][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2907.787412][   T10]      ipv6_find_idev+0x102/0x170
[ 2907.787412][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2907.787412][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2907.787412][   T10]      netlink_rcv_skb+0x130/0x360
[ 2907.787412][   T10]      netlink_unicast+0x449/0x710
[ 2907.787412][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2907.787412][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2907.787412][   T10]      ___sys_sendmsg+0xee/0x170
[ 2907.787412][   T10]      __sys_sendmsg+0xcd/0x170
[ 2907.787412][   T10]      do_syscall_64+0xc6/0x1e0
[ 2907.787412][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2907.787412][   T10] 
[ 2907.789102][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2907.789348][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2907.789348][   T10]      dst_init+0x84/0x4a0
[ 2907.789348][   T10]      dst_alloc+0x97/0x150
[ 2907.789348][   T10]      ip6_dst_alloc+0x23/0x90
[ 2907.789348][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2907.789348][   T10]      ip6_pol_route+0x56f/0x840
[ 2907.789348][   T10]      fib6_rule_lookup+0x456/0x630
[ 2907.789348][   T10]      ip6_route_input+0x59c/0xa50
[ 2907.789348][   T10]      ipv6_rcv+0x397/0x810
[ 2907.789348][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2907.789348][   T10]      process_backlog+0x101/0x620
[ 2907.789348][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2907.789348][   T10]      net_rx_action+0x495/0xbe0
[ 2907.789348][   T10]      __do_softirq+0x1b5/0x7f6
[ 2907.789348][   T10] 
[ 2907.790982][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2907.790982][   T10]      netdev_get_by_index+0x5e/0x80
[ 2907.790982][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2907.790982][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2907.790982][   T10]      ip6_route_add+0x1c/0x140
[ 2907.790982][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2907.790982][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2907.790982][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2907.790982][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2907.790982][   T10]      netlink_rcv_skb+0x130/0x360
[ 2907.790982][   T10]      netlink_unicast+0x449/0x710
[ 2907.790982][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2907.790982][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2907.790982][   T10]      ___sys_sendmsg+0xee/0x170
[ 2907.790982][   T10]      __sys_sendmsg+0xcd/0x170
[ 2907.790982][   T10]      do_syscall_64+0xc6/0x1e0
[ 2907.790982][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2907.790982][   T10] 
[ 2907.792972][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2907.792972][   T10]      netdev_get_by_index+0x5e/0x80
[ 2907.792972][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2907.792972][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2907.792972][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2907.792972][   T10]      ipv6_add_addr+0x411/0x2000
[ 2907.792972][   T10]      inet6_addr_add+0x30e/0xa40
[ 2907.792972][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2907.792972][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2907.792972][   T10]      netlink_rcv_skb+0x130/0x360
[ 2907.792972][   T10]      netlink_unicast+0x449/0x710
[ 2907.792972][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2907.792972][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2907.792972][   T10]      ___sys_sendmsg+0xee/0x170
[ 2907.792972][   T10]      __sys_sendmsg+0xcd/0x170
[ 2907.792972][   T10]      do_syscall_64+0xc6/0x1e0
[ 2907.792972][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2907.792972][   T10] 
[ 2907.794959][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2907.794959][   T10]      netdev_get_by_index+0x5e/0x80
[ 2907.794959][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2907.794959][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2907.794959][   T10]      ip6_route_add+0x1c/0x140
[ 2907.794959][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2907.794959][   T10]      addrconf_add_dev+0xe2/0x170
[ 2907.794959][   T10]      inet6_addr_add+0x12f/0xa40
[ 2907.794959][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2907.794959][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2907.794959][   T10]      netlink_rcv_skb+0x130/0x360
[ 2907.794959][   T10]      netlink_unicast+0x449/0x710
[ 2907.794959][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2907.794959][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2907.794959][   T10]      ___sys_sendmsg+0xee/0x170
[ 2907.794959][   T10]      __sys_sendmsg+0xcd/0x170
[ 2907.794959][   T10]      do_syscall_64+0xc6/0x1e0
[ 2907.794959][   T10] 
[ 2907.796906][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2907.796906][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2907.796906][   T10]      ipv6_find_idev+0x102/0x170
[ 2907.796906][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2907.796906][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2907.796906][   T10]      netlink_rcv_skb+0x130/0x360
[ 2907.796906][   T10]      netlink_unicast+0x449/0x710
[ 2907.796906][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2907.796906][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2907.796906][   T10]      ___sys_sendmsg+0xee/0x170
[ 2907.796906][   T10]      __sys_sendmsg+0xcd/0x170
[ 2907.796906][   T10]      do_syscall_64+0xc6/0x1e0
[ 2907.796906][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2907.796906][   T10] 
[ 2907.798439][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2907.798439][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2907.798439][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2907.798439][   T10]      ipv6_find_idev+0x102/0x170
[ 2907.798439][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2907.798439][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2907.798439][   T10]      netlink_rcv_skb+0x130/0x360
[ 2907.798439][   T10]      netlink_unicast+0x449/0x710
[ 2907.798439][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2907.798439][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2907.798439][   T10]      ___sys_sendmsg+0xee/0x170
[ 2907.798439][   T10]      __sys_sendmsg+0xcd/0x170
[ 2907.798439][   T10]      do_syscall_64+0xc6/0x1e0
[ 2907.798439][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2907.798439][   T10] 
[ 2918.049721][   T10] unregister_netdevice: waiting for veth2 to become free. Usage count = 7
[ 2918.050163][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2918.050163][   T10]      dst_init+0x84/0x4a0
[ 2918.050163][   T10]      dst_alloc+0x97/0x150
[ 2918.050163][   T10]      ip6_dst_alloc+0x23/0x90
[ 2918.050163][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2918.050163][   T10]      ip6_pol_route+0x56f/0x840
[ 2918.050163][   T10]      fib6_rule_lookup+0x456/0x630
[ 2918.050163][   T10]      ip6_route_input+0x59c/0xa50
[ 2918.050163][   T10]      ipv6_rcv+0x397/0x810
[ 2918.050163][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2918.050163][   T10]      process_backlog+0x101/0x620
[ 2918.050163][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2918.050163][   T10]      net_rx_action+0x495/0xbe0
[ 2918.050163][   T10]      __do_softirq+0x1b5/0x7f6
[ 2918.050163][   T10] 
[ 2918.051832][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2918.051832][   T10]      netdev_get_by_index+0x5e/0x80
[ 2918.051832][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2918.051832][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2918.051832][   T10]      ip6_route_add+0x1c/0x140
[ 2918.051832][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2918.051832][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2918.051832][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2918.051832][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2918.051832][   T10]      netlink_rcv_skb+0x130/0x360
[ 2918.051832][   T10]      netlink_unicast+0x449/0x710
[ 2918.051832][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2918.051832][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2918.051832][   T10]      ___sys_sendmsg+0xee/0x170
[ 2918.051832][   T10]      __sys_sendmsg+0xcd/0x170
[ 2918.051832][   T10]      do_syscall_64+0xc6/0x1e0
[ 2918.051832][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2918.051832][   T10] 
[ 2918.053834][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2918.053834][   T10]      netdev_get_by_index+0x5e/0x80
[ 2918.053834][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2918.053834][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2918.053834][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2918.053834][   T10]      ipv6_add_addr+0x411/0x2000
[ 2918.053834][   T10]      inet6_addr_add+0x30e/0xa40
[ 2918.053834][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2918.053834][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2918.053834][   T10]      netlink_rcv_skb+0x130/0x360
[ 2918.053834][   T10]      netlink_unicast+0x449/0x710
[ 2918.053834][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2918.053834][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2918.053834][   T10]      ___sys_sendmsg+0xee/0x170
[ 2918.053834][   T10]      __sys_sendmsg+0xcd/0x170
[ 2918.053834][   T10]      do_syscall_64+0xc6/0x1e0
[ 2918.053834][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2918.053834][   T10] 
[ 2918.055834][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2918.055834][   T10]      netdev_get_by_index+0x5e/0x80
[ 2918.055834][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2918.055834][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2918.055834][   T10]      ip6_route_add+0x1c/0x140
[ 2918.055834][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2918.055834][   T10]      addrconf_add_dev+0xe2/0x170
[ 2918.055834][   T10]      inet6_addr_add+0x12f/0xa40
[ 2918.055834][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2918.055834][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2918.055834][   T10]      netlink_rcv_skb+0x130/0x360
[ 2918.055834][   T10]      netlink_unicast+0x449/0x710
[ 2918.055834][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2918.055834][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2918.055834][   T10]      ___sys_sendmsg+0xee/0x170
[ 2918.055834][   T10]      __sys_sendmsg+0xcd/0x170
[ 2918.055834][   T10]      do_syscall_64+0xc6/0x1e0
[ 2918.055834][   T10] 
[ 2918.057800][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2918.057800][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2918.057800][   T10]      ipv6_find_idev+0x102/0x170
[ 2918.057800][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2918.057800][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2918.057800][   T10]      netlink_rcv_skb+0x130/0x360
[ 2918.057800][   T10]      netlink_unicast+0x449/0x710
[ 2918.057800][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2918.057800][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2918.057800][   T10]      ___sys_sendmsg+0xee/0x170
[ 2918.057800][   T10]      __sys_sendmsg+0xcd/0x170
[ 2918.057800][   T10]      do_syscall_64+0xc6/0x1e0
[ 2918.057800][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2918.057800][   T10] 
[ 2918.059357][   T10] ref_tracker: veth2@ffff8880078a15e0 has 1/6 users at
[ 2918.059357][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2918.059357][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2918.059357][   T10]      ipv6_find_idev+0x102/0x170
[ 2918.059357][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2918.059357][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2918.059357][   T10]      netlink_rcv_skb+0x130/0x360
[ 2918.059357][   T10]      netlink_unicast+0x449/0x710
[ 2918.059357][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2918.059357][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2918.059357][   T10]      ___sys_sendmsg+0xee/0x170
[ 2918.059357][   T10]      __sys_sendmsg+0xcd/0x170
[ 2918.059357][   T10]      do_syscall_64+0xc6/0x1e0
[ 2918.059357][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2918.059357][   T10] 
[ 2918.061060][   T10] unregister_netdevice: waiting for veth1 to become free. Usage count = 7
[ 2918.061303][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2918.061303][   T10]      dst_init+0x84/0x4a0
[ 2918.061303][   T10]      dst_alloc+0x97/0x150
[ 2918.061303][   T10]      ip6_dst_alloc+0x23/0x90
[ 2918.061303][   T10]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2918.061303][   T10]      ip6_pol_route+0x56f/0x840
[ 2918.061303][   T10]      fib6_rule_lookup+0x456/0x630
[ 2918.061303][   T10]      ip6_route_input+0x59c/0xa50
[ 2918.061303][   T10]      ipv6_rcv+0x397/0x810
[ 2918.061303][   T10]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2918.061303][   T10]      process_backlog+0x101/0x620
[ 2918.061303][   T10]      __napi_poll.constprop.0+0xa2/0x460
[ 2918.061303][   T10]      net_rx_action+0x495/0xbe0
[ 2918.061303][   T10]      __do_softirq+0x1b5/0x7f6
[ 2918.061303][   T10] 
[ 2918.062934][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2918.062934][   T10]      netdev_get_by_index+0x5e/0x80
[ 2918.062934][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2918.062934][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2918.062934][   T10]      ip6_route_add+0x1c/0x140
[ 2918.062934][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 2918.062934][   T10]      inet6_addr_add+0x4f8/0xa40
[ 2918.062934][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2918.062934][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2918.062934][   T10]      netlink_rcv_skb+0x130/0x360
[ 2918.062934][   T10]      netlink_unicast+0x449/0x710
[ 2918.062934][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2918.062934][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2918.062934][   T10]      ___sys_sendmsg+0xee/0x170
[ 2918.062934][   T10]      __sys_sendmsg+0xcd/0x170
[ 2918.062934][   T10]      do_syscall_64+0xc6/0x1e0
[ 2918.062934][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2918.062934][   T10] 
[ 2918.064944][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2918.064944][   T10]      netdev_get_by_index+0x5e/0x80
[ 2918.064944][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2918.064944][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2918.064944][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 2918.064944][   T10]      ipv6_add_addr+0x411/0x2000
[ 2918.064944][   T10]      inet6_addr_add+0x30e/0xa40
[ 2918.064944][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2918.064944][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2918.064944][   T10]      netlink_rcv_skb+0x130/0x360
[ 2918.064944][   T10]      netlink_unicast+0x449/0x710
[ 2918.064944][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2918.064944][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2918.064944][   T10]      ___sys_sendmsg+0xee/0x170
[ 2918.064944][   T10]      __sys_sendmsg+0xcd/0x170
[ 2918.064944][   T10]      do_syscall_64+0xc6/0x1e0
[ 2918.064944][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2918.064944][   T10] 
[ 2918.066938][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2918.066938][   T10]      netdev_get_by_index+0x5e/0x80
[ 2918.066938][   T10]      fib6_nh_init+0x3d8/0x1580
[ 2918.066938][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 2918.066938][   T10]      ip6_route_add+0x1c/0x140
[ 2918.066938][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 2918.066938][   T10]      addrconf_add_dev+0xe2/0x170
[ 2918.066938][   T10]      inet6_addr_add+0x12f/0xa40
[ 2918.066938][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 2918.066938][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2918.066938][   T10]      netlink_rcv_skb+0x130/0x360
[ 2918.066938][   T10]      netlink_unicast+0x449/0x710
[ 2918.066938][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2918.066938][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2918.066938][   T10]      ___sys_sendmsg+0xee/0x170
[ 2918.066938][   T10]      __sys_sendmsg+0xcd/0x170
[ 2918.066938][   T10]      do_syscall_64+0xc6/0x1e0
[ 2918.066938][   T10] 
[ 2918.068907][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2918.068907][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 2918.068907][   T10]      ipv6_find_idev+0x102/0x170
[ 2918.068907][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2918.068907][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2918.068907][   T10]      netlink_rcv_skb+0x130/0x360
[ 2918.068907][   T10]      netlink_unicast+0x449/0x710
[ 2918.068907][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2918.068907][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2918.068907][   T10]      ___sys_sendmsg+0xee/0x170
[ 2918.068907][   T10]      __sys_sendmsg+0xcd/0x170
[ 2918.068907][   T10]      do_syscall_64+0xc6/0x1e0
[ 2918.068907][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2918.068907][   T10] 
[ 2918.070445][   T10] ref_tracker: veth1@ffff8880060a45e0 has 1/6 users at
[ 2918.070445][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 2918.070445][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 2918.070445][   T10]      ipv6_find_idev+0x102/0x170
[ 2918.070445][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2918.070445][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2918.070445][   T10]      netlink_rcv_skb+0x130/0x360
[ 2918.070445][   T10]      netlink_unicast+0x449/0x710
[ 2918.070445][   T10]      netlink_sendmsg+0x723/0xbe0
[ 2918.070445][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 2918.070445][   T10]      ___sys_sendmsg+0xee/0x170
[ 2918.070445][   T10]      __sys_sendmsg+0xcd/0x170
[ 2918.070445][   T10]      do_syscall_64+0xc6/0x1e0
[ 2918.070445][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2918.070445][   T10] 

HARD STOP (2886.054425)

WAIT TIMEOUT stderr

Ctrl-C stderr

Ctrl-C stderr