[  969.008759][   T10] unregister_netdevice: waiting for eth0 to become free. Usage count = 4
[  969.009087][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[  969.009087][   T10]      netdev_get_by_index+0x5e/0x80
[  969.009087][   T10]      fib6_nh_init+0x3d8/0x1580
[  969.009087][   T10]      ip6_route_info_create+0xf18/0x17d0
[  969.009087][   T10]      addrconf_f6i_alloc+0x315/0x560
[  969.009087][   T10]      ipv6_add_addr+0x411/0x2000
[  969.009087][   T10]      inet6_addr_add+0x30e/0xa40
[  969.009087][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  969.009087][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  969.009087][   T10]      netlink_rcv_skb+0x130/0x360
[  969.009087][   T10]      netlink_unicast+0x449/0x710
[  969.009087][   T10]      netlink_sendmsg+0x723/0xbe0
[  969.009087][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  969.009087][   T10]      ___sys_sendmsg+0xee/0x170
[  969.009087][   T10]      __sys_sendmsg+0xcd/0x170
[  969.009087][   T10]      do_syscall_64+0xc6/0x1e0
[  969.009087][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  969.009087][   T10] 
[  969.011231][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[  969.011231][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  969.011231][   T10]      ipv6_find_idev+0x102/0x170
[  969.011231][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  969.011231][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  969.011231][   T10]      netlink_rcv_skb+0x130/0x360
[  969.011231][   T10]      netlink_unicast+0x449/0x710
[  969.011231][   T10]      netlink_sendmsg+0x723/0xbe0
[  969.011231][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  969.011231][   T10]      ___sys_sendmsg+0xee/0x170
[  969.011231][   T10]      __sys_sendmsg+0xcd/0x170
[  969.011231][   T10]      do_syscall_64+0xc6/0x1e0
[  969.011231][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  969.011231][   T10] 
[  969.013081][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[  969.013081][   T10]      neigh_parms_alloc+0x1e5/0x510
[  969.013081][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  969.013081][   T10]      ipv6_find_idev+0x102/0x170
[  969.013081][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  969.013081][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  969.013081][   T10]      netlink_rcv_skb+0x130/0x360
[  969.013081][   T10]      netlink_unicast+0x449/0x710
[  969.013081][   T10]      netlink_sendmsg+0x723/0xbe0
[  969.013081][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  969.013081][   T10]      ___sys_sendmsg+0xee/0x170
[  969.013081][   T10]      __sys_sendmsg+0xcd/0x170
[  969.013081][   T10]      do_syscall_64+0xc6/0x1e0
[  969.013081][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  969.013081][   T10] 
[  969.016009][   T10] unregister_netdevice: waiting for eth0 to become free. Usage count = 7
[  969.016419][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  969.016419][   T10]      netdev_get_by_index+0x5e/0x80
[  969.016419][   T10]      fib6_nh_init+0x3d8/0x1580
[  969.016419][   T10]      ip6_route_info_create+0xf18/0x17d0
[  969.016419][   T10]      addrconf_f6i_alloc+0x265/0x560
[  969.016419][   T10]      __ipv6_dev_ac_inc+0x25f/0xb10
[  969.016419][   T10]      addrconf_join_anycast+0x1c0/0x220
[  969.016419][   T10]      __ipv6_ifa_notify+0x6b3/0xaf0
[  969.016419][   T10]      addrconf_dad_completed+0x12b/0xe20
[  969.016419][   T10]      addrconf_dad_begin+0x310/0x670
[  969.016419][   T10]      addrconf_dad_work+0x10b/0xab0
[  969.016419][   T10]      process_one_work+0x84d/0x18a0
[  969.016419][   T10]      worker_thread+0x587/0xd30
[  969.016419][   T10]      kthread+0x28a/0x350
[  969.016419][   T10]      ret_from_fork+0x31/0x70
[  969.016419][   T10]      ret_from_fork_asm+0x1a/0x30
[  969.016419][   T10] 
[  969.019698][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  969.019698][   T10]      netdev_get_by_index+0x5e/0x80
[  969.019698][   T10]      fib6_nh_init+0x3d8/0x1580
[  969.019698][   T10]      ip6_route_info_create+0xf18/0x17d0
[  969.019698][   T10]      ip6_route_add+0x1c/0x140
[  969.019698][   T10]      addrconf_prefix_route+0x2a6/0x430
[  969.019698][   T10]      inet6_addr_add+0x4f8/0xa40
[  969.019698][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  969.019698][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  969.019698][   T10]      netlink_rcv_skb+0x130/0x360
[  969.019698][   T10]      netlink_unicast+0x449/0x710
[  969.019698][   T10]      netlink_sendmsg+0x723/0xbe0
[  969.019698][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  969.019698][   T10]      ___sys_sendmsg+0xee/0x170
[  969.019698][   T10]      __sys_sendmsg+0xcd/0x170
[  969.019698][   T10]      do_syscall_64+0xc6/0x1e0
[  969.019698][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  969.019698][   T10] 
[  969.023175][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  969.023175][   T10]      netdev_get_by_index+0x5e/0x80
[  969.023175][   T10]      fib6_nh_init+0x3d8/0x1580
[  969.023175][   T10]      ip6_route_info_create+0xf18/0x17d0
[  969.023175][   T10]      addrconf_f6i_alloc+0x315/0x560
[  969.023175][   T10]      ipv6_add_addr+0x411/0x2000
[  969.023175][   T10]      inet6_addr_add+0x30e/0xa40
[  969.023175][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  969.023175][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  969.023175][   T10]      netlink_rcv_skb+0x130/0x360
[  969.023175][   T10]      netlink_unicast+0x449/0x710
[  969.023175][   T10]      netlink_sendmsg+0x723/0xbe0
[  969.023175][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  969.023175][   T10]      ___sys_sendmsg+0xee/0x170
[  969.023175][   T10]      __sys_sendmsg+0xcd/0x170
[  969.023175][   T10]      do_syscall_64+0xc6/0x1e0
[  969.023175][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  969.023175][   T10] 
[  969.026646][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  969.026646][   T10]      netdev_get_by_index+0x5e/0x80
[  969.026646][   T10]      fib6_nh_init+0x3d8/0x1580
[  969.026646][   T10]      ip6_route_info_create+0xf18/0x17d0
[  969.026646][   T10]      ip6_route_add+0x1c/0x140
[  969.026646][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  969.026646][   T10]      addrconf_add_dev+0xe2/0x170
[  969.026646][   T10]      inet6_addr_add+0x12f/0xa40
[  969.026646][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  969.026646][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  969.026646][   T10]      netlink_rcv_skb+0x130/0x360
[  969.026646][   T10]      netlink_unicast+0x449/0x710
[  969.026646][   T10]      netlink_sendmsg+0x723/0xbe0
[  969.026646][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  969.026646][   T10]      ___sys_sendmsg+0xee/0x170
[  969.026646][   T10]      __sys_sendmsg+0xcd/0x170
[  969.026646][   T10]      do_syscall_64+0xc6/0x1e0
[  969.026646][   T10] 
[  969.030118][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  969.030118][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  969.030118][   T10]      ipv6_find_idev+0x102/0x170
[  969.030118][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  969.030118][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  969.030118][   T10]      netlink_rcv_skb+0x130/0x360
[  969.030118][   T10]      netlink_unicast+0x449/0x710
[  969.030118][   T10]      netlink_sendmsg+0x723/0xbe0
[  969.030118][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  969.030118][   T10]      ___sys_sendmsg+0xee/0x170
[  969.030118][   T10]      __sys_sendmsg+0xcd/0x170
[  969.030118][   T10]      do_syscall_64+0xc6/0x1e0
[  969.030118][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  969.030118][   T10] 
[  969.033048][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  969.033048][   T10]      neigh_parms_alloc+0x1e5/0x510
[  969.033048][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  969.033048][   T10]      ipv6_find_idev+0x102/0x170
[  969.033048][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  969.033048][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  969.033048][   T10]      netlink_rcv_skb+0x130/0x360
[  969.033048][   T10]      netlink_unicast+0x449/0x710
[  969.033048][   T10]      netlink_sendmsg+0x723/0xbe0
[  969.033048][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  969.033048][   T10]      ___sys_sendmsg+0xee/0x170
[  969.033048][   T10]      __sys_sendmsg+0xcd/0x170
[  969.033048][   T10]      do_syscall_64+0xc6/0x1e0
[  969.033048][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  969.033048][   T10] 
[  979.072657][   T10] unregister_netdevice: waiting for eth0 to become free. Usage count = 4
[  979.073054][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[  979.073054][   T10]      netdev_get_by_index+0x5e/0x80
[  979.073054][   T10]      fib6_nh_init+0x3d8/0x1580
[  979.073054][   T10]      ip6_route_info_create+0xf18/0x17d0
[  979.073054][   T10]      addrconf_f6i_alloc+0x315/0x560
[  979.073054][   T10]      ipv6_add_addr+0x411/0x2000
[  979.073054][   T10]      inet6_addr_add+0x30e/0xa40
[  979.073054][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  979.073054][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  979.073054][   T10]      netlink_rcv_skb+0x130/0x360
[  979.073054][   T10]      netlink_unicast+0x449/0x710
[  979.073054][   T10]      netlink_sendmsg+0x723/0xbe0
[  979.073054][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  979.073054][   T10]      ___sys_sendmsg+0xee/0x170
[  979.073054][   T10]      __sys_sendmsg+0xcd/0x170
[  979.073054][   T10]      do_syscall_64+0xc6/0x1e0
[  979.073054][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  979.073054][   T10] 
[  979.075226][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[  979.075226][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  979.075226][   T10]      ipv6_find_idev+0x102/0x170
[  979.075226][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  979.075226][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  979.075226][   T10]      netlink_rcv_skb+0x130/0x360
[  979.075226][   T10]      netlink_unicast+0x449/0x710
[  979.075226][   T10]      netlink_sendmsg+0x723/0xbe0
[  979.075226][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  979.075226][   T10]      ___sys_sendmsg+0xee/0x170
[  979.075226][   T10]      __sys_sendmsg+0xcd/0x170
[  979.075226][   T10]      do_syscall_64+0xc6/0x1e0
[  979.075226][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  979.075226][   T10] 
[  979.076881][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[  979.076881][   T10]      neigh_parms_alloc+0x1e5/0x510
[  979.076881][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  979.076881][   T10]      ipv6_find_idev+0x102/0x170
[  979.076881][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  979.076881][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  979.076881][   T10]      netlink_rcv_skb+0x130/0x360
[  979.076881][   T10]      netlink_unicast+0x449/0x710
[  979.076881][   T10]      netlink_sendmsg+0x723/0xbe0
[  979.076881][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  979.076881][   T10]      ___sys_sendmsg+0xee/0x170
[  979.076881][   T10]      __sys_sendmsg+0xcd/0x170
[  979.076881][   T10]      do_syscall_64+0xc6/0x1e0
[  979.076881][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  979.076881][   T10] 
[  979.078673][   T10] unregister_netdevice: waiting for eth0 to become free. Usage count = 7
[  979.078953][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  979.078953][   T10]      netdev_get_by_index+0x5e/0x80
[  979.078953][   T10]      fib6_nh_init+0x3d8/0x1580
[  979.078953][   T10]      ip6_route_info_create+0xf18/0x17d0
[  979.078953][   T10]      addrconf_f6i_alloc+0x265/0x560
[  979.078953][   T10]      __ipv6_dev_ac_inc+0x25f/0xb10
[  979.078953][   T10]      addrconf_join_anycast+0x1c0/0x220
[  979.078953][   T10]      __ipv6_ifa_notify+0x6b3/0xaf0
[  979.078953][   T10]      addrconf_dad_completed+0x12b/0xe20
[  979.078953][   T10]      addrconf_dad_begin+0x310/0x670
[  979.078953][   T10]      addrconf_dad_work+0x10b/0xab0
[  979.078953][   T10]      process_one_work+0x84d/0x18a0
[  979.078953][   T10]      worker_thread+0x587/0xd30
[  979.078953][   T10]      kthread+0x28a/0x350
[  979.078953][   T10]      ret_from_fork+0x31/0x70
[  979.078953][   T10]      ret_from_fork_asm+0x1a/0x30
[  979.078953][   T10] 
[  979.080999][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  979.080999][   T10]      netdev_get_by_index+0x5e/0x80
[  979.080999][   T10]      fib6_nh_init+0x3d8/0x1580
[  979.080999][   T10]      ip6_route_info_create+0xf18/0x17d0
[  979.080999][   T10]      ip6_route_add+0x1c/0x140
[  979.080999][   T10]      addrconf_prefix_route+0x2a6/0x430
[  979.080999][   T10]      inet6_addr_add+0x4f8/0xa40
[  979.080999][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  979.080999][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  979.080999][   T10]      netlink_rcv_skb+0x130/0x360
[  979.080999][   T10]      netlink_unicast+0x449/0x710
[  979.080999][   T10]      netlink_sendmsg+0x723/0xbe0
[  979.080999][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  979.080999][   T10]      ___sys_sendmsg+0xee/0x170
[  979.080999][   T10]      __sys_sendmsg+0xcd/0x170
[  979.080999][   T10]      do_syscall_64+0xc6/0x1e0
[  979.080999][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  979.080999][   T10] 
[  979.083140][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  979.083140][   T10]      netdev_get_by_index+0x5e/0x80
[  979.083140][   T10]      fib6_nh_init+0x3d8/0x1580
[  979.083140][   T10]      ip6_route_info_create+0xf18/0x17d0
[  979.083140][   T10]      addrconf_f6i_alloc+0x315/0x560
[  979.083140][   T10]      ipv6_add_addr+0x411/0x2000
[  979.083140][   T10]      inet6_addr_add+0x30e/0xa40
[  979.083140][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  979.083140][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  979.083140][   T10]      netlink_rcv_skb+0x130/0x360
[  979.083140][   T10]      netlink_unicast+0x449/0x710
[  979.083140][   T10]      netlink_sendmsg+0x723/0xbe0
[  979.083140][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  979.083140][   T10]      ___sys_sendmsg+0xee/0x170
[  979.083140][   T10]      __sys_sendmsg+0xcd/0x170
[  979.083140][   T10]      do_syscall_64+0xc6/0x1e0
[  979.083140][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  979.083140][   T10] 
[  979.085350][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  979.085350][   T10]      netdev_get_by_index+0x5e/0x80
[  979.085350][   T10]      fib6_nh_init+0x3d8/0x1580
[  979.085350][   T10]      ip6_route_info_create+0xf18/0x17d0
[  979.085350][   T10]      ip6_route_add+0x1c/0x140
[  979.085350][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  979.085350][   T10]      addrconf_add_dev+0xe2/0x170
[  979.085350][   T10]      inet6_addr_add+0x12f/0xa40
[  979.085350][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  979.085350][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  979.085350][   T10]      netlink_rcv_skb+0x130/0x360
[  979.085350][   T10]      netlink_unicast+0x449/0x710
[  979.085350][   T10]      netlink_sendmsg+0x723/0xbe0
[  979.085350][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  979.085350][   T10]      ___sys_sendmsg+0xee/0x170
[  979.085350][   T10]      __sys_sendmsg+0xcd/0x170
[  979.085350][   T10]      do_syscall_64+0xc6/0x1e0
[  979.085350][   T10] 
[  979.087416][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  979.087416][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  979.087416][   T10]      ipv6_find_idev+0x102/0x170
[  979.087416][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  979.087416][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  979.087416][   T10]      netlink_rcv_skb+0x130/0x360
[  979.087416][   T10]      netlink_unicast+0x449/0x710
[  979.087416][   T10]      netlink_sendmsg+0x723/0xbe0
[  979.087416][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  979.087416][   T10]      ___sys_sendmsg+0xee/0x170
[  979.087416][   T10]      __sys_sendmsg+0xcd/0x170
[  979.087416][   T10]      do_syscall_64+0xc6/0x1e0
[  979.087416][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  979.087416][   T10] 
[  979.089033][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  979.089033][   T10]      neigh_parms_alloc+0x1e5/0x510
[  979.089033][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  979.089033][   T10]      ipv6_find_idev+0x102/0x170
[  979.089033][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  979.089033][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  979.089033][   T10]      netlink_rcv_skb+0x130/0x360
[  979.089033][   T10]      netlink_unicast+0x449/0x710
[  979.089033][   T10]      netlink_sendmsg+0x723/0xbe0
[  979.089033][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  979.089033][   T10]      ___sys_sendmsg+0xee/0x170
[  979.089033][   T10]      __sys_sendmsg+0xcd/0x170
[  979.089033][   T10]      do_syscall_64+0xc6/0x1e0
[  979.089033][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  979.089033][   T10] 
[  989.152731][   T10] unregister_netdevice: waiting for eth0 to become free. Usage count = 4
[  989.153105][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[  989.153105][   T10]      netdev_get_by_index+0x5e/0x80
[  989.153105][   T10]      fib6_nh_init+0x3d8/0x1580
[  989.153105][   T10]      ip6_route_info_create+0xf18/0x17d0
[  989.153105][   T10]      addrconf_f6i_alloc+0x315/0x560
[  989.153105][   T10]      ipv6_add_addr+0x411/0x2000
[  989.153105][   T10]      inet6_addr_add+0x30e/0xa40
[  989.153105][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  989.153105][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  989.153105][   T10]      netlink_rcv_skb+0x130/0x360
[  989.153105][   T10]      netlink_unicast+0x449/0x710
[  989.153105][   T10]      netlink_sendmsg+0x723/0xbe0
[  989.153105][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  989.153105][   T10]      ___sys_sendmsg+0xee/0x170
[  989.153105][   T10]      __sys_sendmsg+0xcd/0x170
[  989.153105][   T10]      do_syscall_64+0xc6/0x1e0
[  989.153105][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  989.153105][   T10] 
[  989.155226][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[  989.155226][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  989.155226][   T10]      ipv6_find_idev+0x102/0x170
[  989.155226][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  989.155226][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  989.155226][   T10]      netlink_rcv_skb+0x130/0x360
[  989.155226][   T10]      netlink_unicast+0x449/0x710
[  989.155226][   T10]      netlink_sendmsg+0x723/0xbe0
[  989.155226][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  989.155226][   T10]      ___sys_sendmsg+0xee/0x170
[  989.155226][   T10]      __sys_sendmsg+0xcd/0x170
[  989.155226][   T10]      do_syscall_64+0xc6/0x1e0
[  989.155226][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  989.155226][   T10] 
[  989.156850][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[  989.156850][   T10]      neigh_parms_alloc+0x1e5/0x510
[  989.156850][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  989.156850][   T10]      ipv6_find_idev+0x102/0x170
[  989.156850][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  989.156850][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  989.156850][   T10]      netlink_rcv_skb+0x130/0x360
[  989.156850][   T10]      netlink_unicast+0x449/0x710
[  989.156850][   T10]      netlink_sendmsg+0x723/0xbe0
[  989.156850][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  989.156850][   T10]      ___sys_sendmsg+0xee/0x170
[  989.156850][   T10]      __sys_sendmsg+0xcd/0x170
[  989.156850][   T10]      do_syscall_64+0xc6/0x1e0
[  989.156850][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  989.156850][   T10] 
[  989.158654][   T10] unregister_netdevice: waiting for eth0 to become free. Usage count = 7
[  989.158929][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  989.158929][   T10]      netdev_get_by_index+0x5e/0x80
[  989.158929][   T10]      fib6_nh_init+0x3d8/0x1580
[  989.158929][   T10]      ip6_route_info_create+0xf18/0x17d0
[  989.158929][   T10]      addrconf_f6i_alloc+0x265/0x560
[  989.158929][   T10]      __ipv6_dev_ac_inc+0x25f/0xb10
[  989.158929][   T10]      addrconf_join_anycast+0x1c0/0x220
[  989.158929][   T10]      __ipv6_ifa_notify+0x6b3/0xaf0
[  989.158929][   T10]      addrconf_dad_completed+0x12b/0xe20
[  989.158929][   T10]      addrconf_dad_begin+0x310/0x670
[  989.158929][   T10]      addrconf_dad_work+0x10b/0xab0
[  989.158929][   T10]      process_one_work+0x84d/0x18a0
[  989.158929][   T10]      worker_thread+0x587/0xd30
[  989.158929][   T10]      kthread+0x28a/0x350
[  989.158929][   T10]      ret_from_fork+0x31/0x70
[  989.158929][   T10]      ret_from_fork_asm+0x1a/0x30
[  989.158929][   T10] 
[  989.160937][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  989.160937][   T10]      netdev_get_by_index+0x5e/0x80
[  989.160937][   T10]      fib6_nh_init+0x3d8/0x1580
[  989.160937][   T10]      ip6_route_info_create+0xf18/0x17d0
[  989.160937][   T10]      ip6_route_add+0x1c/0x140
[  989.160937][   T10]      addrconf_prefix_route+0x2a6/0x430
[  989.160937][   T10]      inet6_addr_add+0x4f8/0xa40
[  989.160937][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  989.160937][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  989.160937][   T10]      netlink_rcv_skb+0x130/0x360
[  989.160937][   T10]      netlink_unicast+0x449/0x710
[  989.160937][   T10]      netlink_sendmsg+0x723/0xbe0
[  989.160937][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  989.160937][   T10]      ___sys_sendmsg+0xee/0x170
[  989.160937][   T10]      __sys_sendmsg+0xcd/0x170
[  989.160937][   T10]      do_syscall_64+0xc6/0x1e0
[  989.160937][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  989.160937][   T10] 
[  989.163078][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  989.163078][   T10]      netdev_get_by_index+0x5e/0x80
[  989.163078][   T10]      fib6_nh_init+0x3d8/0x1580
[  989.163078][   T10]      ip6_route_info_create+0xf18/0x17d0
[  989.163078][   T10]      addrconf_f6i_alloc+0x315/0x560
[  989.163078][   T10]      ipv6_add_addr+0x411/0x2000
[  989.163078][   T10]      inet6_addr_add+0x30e/0xa40
[  989.163078][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  989.163078][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  989.163078][   T10]      netlink_rcv_skb+0x130/0x360
[  989.163078][   T10]      netlink_unicast+0x449/0x710
[  989.163078][   T10]      netlink_sendmsg+0x723/0xbe0
[  989.163078][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  989.163078][   T10]      ___sys_sendmsg+0xee/0x170
[  989.163078][   T10]      __sys_sendmsg+0xcd/0x170
[  989.163078][   T10]      do_syscall_64+0xc6/0x1e0
[  989.163078][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  989.163078][   T10] 
[  989.165145][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  989.165145][   T10]      netdev_get_by_index+0x5e/0x80
[  989.165145][   T10]      fib6_nh_init+0x3d8/0x1580
[  989.165145][   T10]      ip6_route_info_create+0xf18/0x17d0
[  989.165145][   T10]      ip6_route_add+0x1c/0x140
[  989.165145][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  989.165145][   T10]      addrconf_add_dev+0xe2/0x170
[  989.165145][   T10]      inet6_addr_add+0x12f/0xa40
[  989.165145][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  989.165145][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  989.165145][   T10]      netlink_rcv_skb+0x130/0x360
[  989.165145][   T10]      netlink_unicast+0x449/0x710
[  989.165145][   T10]      netlink_sendmsg+0x723/0xbe0
[  989.165145][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  989.165145][   T10]      ___sys_sendmsg+0xee/0x170
[  989.165145][   T10]      __sys_sendmsg+0xcd/0x170
[  989.165145][   T10]      do_syscall_64+0xc6/0x1e0
[  989.165145][   T10] 
[  989.167168][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  989.167168][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  989.167168][   T10]      ipv6_find_idev+0x102/0x170
[  989.167168][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  989.167168][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  989.167168][   T10]      netlink_rcv_skb+0x130/0x360
[  989.167168][   T10]      netlink_unicast+0x449/0x710
[  989.167168][   T10]      netlink_sendmsg+0x723/0xbe0
[  989.167168][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  989.167168][   T10]      ___sys_sendmsg+0xee/0x170
[  989.167168][   T10]      __sys_sendmsg+0xcd/0x170
[  989.167168][   T10]      do_syscall_64+0xc6/0x1e0
[  989.167168][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  989.167168][   T10] 
[  989.168751][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  989.168751][   T10]      neigh_parms_alloc+0x1e5/0x510
[  989.168751][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  989.168751][   T10]      ipv6_find_idev+0x102/0x170
[  989.168751][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  989.168751][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  989.168751][   T10]      netlink_rcv_skb+0x130/0x360
[  989.168751][   T10]      netlink_unicast+0x449/0x710
[  989.168751][   T10]      netlink_sendmsg+0x723/0xbe0
[  989.168751][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  989.168751][   T10]      ___sys_sendmsg+0xee/0x170
[  989.168751][   T10]      __sys_sendmsg+0xcd/0x170
[  989.168751][   T10]      do_syscall_64+0xc6/0x1e0
[  989.168751][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  989.168751][   T10] 
[  999.272667][   T10] unregister_netdevice: waiting for eth0 to become free. Usage count = 4
[  999.272987][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[  999.272987][   T10]      netdev_get_by_index+0x5e/0x80
[  999.272987][   T10]      fib6_nh_init+0x3d8/0x1580
[  999.272987][   T10]      ip6_route_info_create+0xf18/0x17d0
[  999.272987][   T10]      addrconf_f6i_alloc+0x315/0x560
[  999.272987][   T10]      ipv6_add_addr+0x411/0x2000
[  999.272987][   T10]      inet6_addr_add+0x30e/0xa40
[  999.272987][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  999.272987][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  999.272987][   T10]      netlink_rcv_skb+0x130/0x360
[  999.272987][   T10]      netlink_unicast+0x449/0x710
[  999.272987][   T10]      netlink_sendmsg+0x723/0xbe0
[  999.272987][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  999.272987][   T10]      ___sys_sendmsg+0xee/0x170
[  999.272987][   T10]      __sys_sendmsg+0xcd/0x170
[  999.272987][   T10]      do_syscall_64+0xc6/0x1e0
[  999.272987][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  999.272987][   T10] 
[  999.275118][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[  999.275118][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  999.275118][   T10]      ipv6_find_idev+0x102/0x170
[  999.275118][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  999.275118][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  999.275118][   T10]      netlink_rcv_skb+0x130/0x360
[  999.275118][   T10]      netlink_unicast+0x449/0x710
[  999.275118][   T10]      netlink_sendmsg+0x723/0xbe0
[  999.275118][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  999.275118][   T10]      ___sys_sendmsg+0xee/0x170
[  999.275118][   T10]      __sys_sendmsg+0xcd/0x170
[  999.275118][   T10]      do_syscall_64+0xc6/0x1e0
[  999.275118][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  999.275118][   T10] 
[  999.276745][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[  999.276745][   T10]      neigh_parms_alloc+0x1e5/0x510
[  999.276745][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  999.276745][   T10]      ipv6_find_idev+0x102/0x170
[  999.276745][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  999.276745][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  999.276745][   T10]      netlink_rcv_skb+0x130/0x360
[  999.276745][   T10]      netlink_unicast+0x449/0x710
[  999.276745][   T10]      netlink_sendmsg+0x723/0xbe0
[  999.276745][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  999.276745][   T10]      ___sys_sendmsg+0xee/0x170
[  999.276745][   T10]      __sys_sendmsg+0xcd/0x170
[  999.276745][   T10]      do_syscall_64+0xc6/0x1e0
[  999.276745][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  999.276745][   T10] 
[  999.279115][   T10] unregister_netdevice: waiting for eth0 to become free. Usage count = 7
[  999.279377][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  999.279377][   T10]      netdev_get_by_index+0x5e/0x80
[  999.279377][   T10]      fib6_nh_init+0x3d8/0x1580
[  999.279377][   T10]      ip6_route_info_create+0xf18/0x17d0
[  999.279377][   T10]      addrconf_f6i_alloc+0x265/0x560
[  999.279377][   T10]      __ipv6_dev_ac_inc+0x25f/0xb10
[  999.279377][   T10]      addrconf_join_anycast+0x1c0/0x220
[  999.279377][   T10]      __ipv6_ifa_notify+0x6b3/0xaf0
[  999.279377][   T10]      addrconf_dad_completed+0x12b/0xe20
[  999.279377][   T10]      addrconf_dad_begin+0x310/0x670
[  999.279377][   T10]      addrconf_dad_work+0x10b/0xab0
[  999.279377][   T10]      process_one_work+0x84d/0x18a0
[  999.279377][   T10]      worker_thread+0x587/0xd30
[  999.279377][   T10]      kthread+0x28a/0x350
[  999.279377][   T10]      ret_from_fork+0x31/0x70
[  999.279377][   T10]      ret_from_fork_asm+0x1a/0x30
[  999.279377][   T10] 
[  999.281359][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  999.281359][   T10]      netdev_get_by_index+0x5e/0x80
[  999.281359][   T10]      fib6_nh_init+0x3d8/0x1580
[  999.281359][   T10]      ip6_route_info_create+0xf18/0x17d0
[  999.281359][   T10]      ip6_route_add+0x1c/0x140
[  999.281359][   T10]      addrconf_prefix_route+0x2a6/0x430
[  999.281359][   T10]      inet6_addr_add+0x4f8/0xa40
[  999.281359][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  999.281359][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  999.281359][   T10]      netlink_rcv_skb+0x130/0x360
[  999.281359][   T10]      netlink_unicast+0x449/0x710
[  999.281359][   T10]      netlink_sendmsg+0x723/0xbe0
[  999.281359][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  999.281359][   T10]      ___sys_sendmsg+0xee/0x170
[  999.281359][   T10]      __sys_sendmsg+0xcd/0x170
[  999.281359][   T10]      do_syscall_64+0xc6/0x1e0
[  999.281359][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  999.281359][   T10] 
[  999.283542][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  999.283542][   T10]      netdev_get_by_index+0x5e/0x80
[  999.283542][   T10]      fib6_nh_init+0x3d8/0x1580
[  999.283542][   T10]      ip6_route_info_create+0xf18/0x17d0
[  999.283542][   T10]      addrconf_f6i_alloc+0x315/0x560
[  999.283542][   T10]      ipv6_add_addr+0x411/0x2000
[  999.283542][   T10]      inet6_addr_add+0x30e/0xa40
[  999.283542][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  999.283542][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  999.283542][   T10]      netlink_rcv_skb+0x130/0x360
[  999.283542][   T10]      netlink_unicast+0x449/0x710
[  999.283542][   T10]      netlink_sendmsg+0x723/0xbe0
[  999.283542][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  999.283542][   T10]      ___sys_sendmsg+0xee/0x170
[  999.283542][   T10]      __sys_sendmsg+0xcd/0x170
[  999.283542][   T10]      do_syscall_64+0xc6/0x1e0
[  999.283542][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  999.283542][   T10] 
[  999.285977][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  999.285977][   T10]      netdev_get_by_index+0x5e/0x80
[  999.285977][   T10]      fib6_nh_init+0x3d8/0x1580
[  999.285977][   T10]      ip6_route_info_create+0xf18/0x17d0
[  999.285977][   T10]      ip6_route_add+0x1c/0x140
[  999.285977][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[  999.285977][   T10]      addrconf_add_dev+0xe2/0x170
[  999.285977][   T10]      inet6_addr_add+0x12f/0xa40
[  999.285977][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[  999.285977][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  999.285977][   T10]      netlink_rcv_skb+0x130/0x360
[  999.285977][   T10]      netlink_unicast+0x449/0x710
[  999.285977][   T10]      netlink_sendmsg+0x723/0xbe0
[  999.285977][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  999.285977][   T10]      ___sys_sendmsg+0xee/0x170
[  999.285977][   T10]      __sys_sendmsg+0xcd/0x170
[  999.285977][   T10]      do_syscall_64+0xc6/0x1e0
[  999.285977][   T10] 
[  999.288287][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  999.288287][   T10]      ipv6_add_dev+0x3ba/0x11c0
[  999.288287][   T10]      ipv6_find_idev+0x102/0x170
[  999.288287][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  999.288287][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  999.288287][   T10]      netlink_rcv_skb+0x130/0x360
[  999.288287][   T10]      netlink_unicast+0x449/0x710
[  999.288287][   T10]      netlink_sendmsg+0x723/0xbe0
[  999.288287][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  999.288287][   T10]      ___sys_sendmsg+0xee/0x170
[  999.288287][   T10]      __sys_sendmsg+0xcd/0x170
[  999.288287][   T10]      do_syscall_64+0xc6/0x1e0
[  999.288287][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  999.288287][   T10] 
[  999.290120][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[  999.290120][   T10]      neigh_parms_alloc+0x1e5/0x510
[  999.290120][   T10]      ipv6_add_dev+0x2fe/0x11c0
[  999.290120][   T10]      ipv6_find_idev+0x102/0x170
[  999.290120][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[  999.290120][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  999.290120][   T10]      netlink_rcv_skb+0x130/0x360
[  999.290120][   T10]      netlink_unicast+0x449/0x710
[  999.290120][   T10]      netlink_sendmsg+0x723/0xbe0
[  999.290120][   T10]      ____sys_sendmsg+0x7b2/0xa10
[  999.290120][   T10]      ___sys_sendmsg+0xee/0x170
[  999.290120][   T10]      __sys_sendmsg+0xcd/0x170
[  999.290120][   T10]      do_syscall_64+0xc6/0x1e0
[  999.290120][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  999.290120][   T10] 
[ 1009.376745][   T10] unregister_netdevice: waiting for eth0 to become free. Usage count = 4
[ 1009.377078][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[ 1009.377078][   T10]      netdev_get_by_index+0x5e/0x80
[ 1009.377078][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1009.377078][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1009.377078][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1009.377078][   T10]      ipv6_add_addr+0x411/0x2000
[ 1009.377078][   T10]      inet6_addr_add+0x30e/0xa40
[ 1009.377078][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1009.377078][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1009.377078][   T10]      netlink_rcv_skb+0x130/0x360
[ 1009.377078][   T10]      netlink_unicast+0x449/0x710
[ 1009.377078][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1009.377078][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1009.377078][   T10]      ___sys_sendmsg+0xee/0x170
[ 1009.377078][   T10]      __sys_sendmsg+0xcd/0x170
[ 1009.377078][   T10]      do_syscall_64+0xc6/0x1e0
[ 1009.377078][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1009.377078][   T10] 
[ 1009.379220][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[ 1009.379220][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1009.379220][   T10]      ipv6_find_idev+0x102/0x170
[ 1009.379220][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1009.379220][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1009.379220][   T10]      netlink_rcv_skb+0x130/0x360
[ 1009.379220][   T10]      netlink_unicast+0x449/0x710
[ 1009.379220][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1009.379220][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1009.379220][   T10]      ___sys_sendmsg+0xee/0x170
[ 1009.379220][   T10]      __sys_sendmsg+0xcd/0x170
[ 1009.379220][   T10]      do_syscall_64+0xc6/0x1e0
[ 1009.379220][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1009.379220][   T10] 
[ 1009.380895][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[ 1009.380895][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1009.380895][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1009.380895][   T10]      ipv6_find_idev+0x102/0x170
[ 1009.380895][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1009.380895][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1009.380895][   T10]      netlink_rcv_skb+0x130/0x360
[ 1009.380895][   T10]      netlink_unicast+0x449/0x710
[ 1009.380895][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1009.380895][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1009.380895][   T10]      ___sys_sendmsg+0xee/0x170
[ 1009.380895][   T10]      __sys_sendmsg+0xcd/0x170
[ 1009.380895][   T10]      do_syscall_64+0xc6/0x1e0
[ 1009.380895][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1009.380895][   T10] 
[ 1009.382644][   T10] unregister_netdevice: waiting for eth0 to become free. Usage count = 7
[ 1009.382924][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1009.382924][   T10]      netdev_get_by_index+0x5e/0x80
[ 1009.382924][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1009.382924][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1009.382924][   T10]      addrconf_f6i_alloc+0x265/0x560
[ 1009.382924][   T10]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1009.382924][   T10]      addrconf_join_anycast+0x1c0/0x220
[ 1009.382924][   T10]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1009.382924][   T10]      addrconf_dad_completed+0x12b/0xe20
[ 1009.382924][   T10]      addrconf_dad_begin+0x310/0x670
[ 1009.382924][   T10]      addrconf_dad_work+0x10b/0xab0
[ 1009.382924][   T10]      process_one_work+0x84d/0x18a0
[ 1009.382924][   T10]      worker_thread+0x587/0xd30
[ 1009.382924][   T10]      kthread+0x28a/0x350
[ 1009.382924][   T10]      ret_from_fork+0x31/0x70
[ 1009.382924][   T10]      ret_from_fork_asm+0x1a/0x30
[ 1009.382924][   T10] 
[ 1009.384930][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1009.384930][   T10]      netdev_get_by_index+0x5e/0x80
[ 1009.384930][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1009.384930][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1009.384930][   T10]      ip6_route_add+0x1c/0x140
[ 1009.384930][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1009.384930][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1009.384930][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1009.384930][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1009.384930][   T10]      netlink_rcv_skb+0x130/0x360
[ 1009.384930][   T10]      netlink_unicast+0x449/0x710
[ 1009.384930][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1009.384930][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1009.384930][   T10]      ___sys_sendmsg+0xee/0x170
[ 1009.384930][   T10]      __sys_sendmsg+0xcd/0x170
[ 1009.384930][   T10]      do_syscall_64+0xc6/0x1e0
[ 1009.384930][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1009.384930][   T10] 
[ 1009.387057][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1009.387057][   T10]      netdev_get_by_index+0x5e/0x80
[ 1009.387057][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1009.387057][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1009.387057][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1009.387057][   T10]      ipv6_add_addr+0x411/0x2000
[ 1009.387057][   T10]      inet6_addr_add+0x30e/0xa40
[ 1009.387057][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1009.387057][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1009.387057][   T10]      netlink_rcv_skb+0x130/0x360
[ 1009.387057][   T10]      netlink_unicast+0x449/0x710
[ 1009.387057][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1009.387057][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1009.387057][   T10]      ___sys_sendmsg+0xee/0x170
[ 1009.387057][   T10]      __sys_sendmsg+0xcd/0x170
[ 1009.387057][   T10]      do_syscall_64+0xc6/0x1e0
[ 1009.387057][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1009.387057][   T10] 
[ 1009.389196][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1009.389196][   T10]      netdev_get_by_index+0x5e/0x80
[ 1009.389196][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1009.389196][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1009.389196][   T10]      ip6_route_add+0x1c/0x140
[ 1009.389196][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1009.389196][   T10]      addrconf_add_dev+0xe2/0x170
[ 1009.389196][   T10]      inet6_addr_add+0x12f/0xa40
[ 1009.389196][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1009.389196][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1009.389196][   T10]      netlink_rcv_skb+0x130/0x360
[ 1009.389196][   T10]      netlink_unicast+0x449/0x710
[ 1009.389196][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1009.389196][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1009.389196][   T10]      ___sys_sendmsg+0xee/0x170
[ 1009.389196][   T10]      __sys_sendmsg+0xcd/0x170
[ 1009.389196][   T10]      do_syscall_64+0xc6/0x1e0
[ 1009.389196][   T10] 
[ 1009.391307][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1009.391307][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1009.391307][   T10]      ipv6_find_idev+0x102/0x170
[ 1009.391307][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1009.391307][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1009.391307][   T10]      netlink_rcv_skb+0x130/0x360
[ 1009.391307][   T10]      netlink_unicast+0x449/0x710
[ 1009.391307][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1009.391307][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1009.391307][   T10]      ___sys_sendmsg+0xee/0x170
[ 1009.391307][   T10]      __sys_sendmsg+0xcd/0x170
[ 1009.391307][   T10]      do_syscall_64+0xc6/0x1e0
[ 1009.391307][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1009.391307][   T10] 
[ 1009.392948][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1009.392948][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1009.392948][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1009.392948][   T10]      ipv6_find_idev+0x102/0x170
[ 1009.392948][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1009.392948][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1009.392948][   T10]      netlink_rcv_skb+0x130/0x360
[ 1009.392948][   T10]      netlink_unicast+0x449/0x710
[ 1009.392948][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1009.392948][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1009.392948][   T10]      ___sys_sendmsg+0xee/0x170
[ 1009.392948][   T10]      __sys_sendmsg+0xcd/0x170
[ 1009.392948][   T10]      do_syscall_64+0xc6/0x1e0
[ 1009.392948][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1009.392948][   T10] 
[ 1019.512729][   T10] unregister_netdevice: waiting for eth0 to become free. Usage count = 4
[ 1019.513065][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[ 1019.513065][   T10]      netdev_get_by_index+0x5e/0x80
[ 1019.513065][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1019.513065][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1019.513065][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1019.513065][   T10]      ipv6_add_addr+0x411/0x2000
[ 1019.513065][   T10]      inet6_addr_add+0x30e/0xa40
[ 1019.513065][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1019.513065][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1019.513065][   T10]      netlink_rcv_skb+0x130/0x360
[ 1019.513065][   T10]      netlink_unicast+0x449/0x710
[ 1019.513065][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1019.513065][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1019.513065][   T10]      ___sys_sendmsg+0xee/0x170
[ 1019.513065][   T10]      __sys_sendmsg+0xcd/0x170
[ 1019.513065][   T10]      do_syscall_64+0xc6/0x1e0
[ 1019.513065][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1019.513065][   T10] 
[ 1019.515279][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[ 1019.515279][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1019.515279][   T10]      ipv6_find_idev+0x102/0x170
[ 1019.515279][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1019.515279][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1019.515279][   T10]      netlink_rcv_skb+0x130/0x360
[ 1019.515279][   T10]      netlink_unicast+0x449/0x710
[ 1019.515279][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1019.515279][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1019.515279][   T10]      ___sys_sendmsg+0xee/0x170
[ 1019.515279][   T10]      __sys_sendmsg+0xcd/0x170
[ 1019.515279][   T10]      do_syscall_64+0xc6/0x1e0
[ 1019.515279][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1019.515279][   T10] 
[ 1019.516984][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[ 1019.516984][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1019.516984][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1019.516984][   T10]      ipv6_find_idev+0x102/0x170
[ 1019.516984][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1019.516984][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1019.516984][   T10]      netlink_rcv_skb+0x130/0x360
[ 1019.516984][   T10]      netlink_unicast+0x449/0x710
[ 1019.516984][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1019.516984][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1019.516984][   T10]      ___sys_sendmsg+0xee/0x170
[ 1019.516984][   T10]      __sys_sendmsg+0xcd/0x170
[ 1019.516984][   T10]      do_syscall_64+0xc6/0x1e0
[ 1019.516984][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1019.516984][   T10] 
[ 1019.518904][   T10] unregister_netdevice: waiting for eth0 to become free. Usage count = 7
[ 1019.519187][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1019.519187][   T10]      netdev_get_by_index+0x5e/0x80
[ 1019.519187][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1019.519187][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1019.519187][   T10]      addrconf_f6i_alloc+0x265/0x560
[ 1019.519187][   T10]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1019.519187][   T10]      addrconf_join_anycast+0x1c0/0x220
[ 1019.519187][   T10]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1019.519187][   T10]      addrconf_dad_completed+0x12b/0xe20
[ 1019.519187][   T10]      addrconf_dad_begin+0x310/0x670
[ 1019.519187][   T10]      addrconf_dad_work+0x10b/0xab0
[ 1019.519187][   T10]      process_one_work+0x84d/0x18a0
[ 1019.519187][   T10]      worker_thread+0x587/0xd30
[ 1019.519187][   T10]      kthread+0x28a/0x350
[ 1019.519187][   T10]      ret_from_fork+0x31/0x70
[ 1019.519187][   T10]      ret_from_fork_asm+0x1a/0x30
[ 1019.519187][   T10] 
[ 1019.521337][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1019.521337][   T10]      netdev_get_by_index+0x5e/0x80
[ 1019.521337][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1019.521337][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1019.521337][   T10]      ip6_route_add+0x1c/0x140
[ 1019.521337][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1019.521337][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1019.521337][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1019.521337][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1019.521337][   T10]      netlink_rcv_skb+0x130/0x360
[ 1019.521337][   T10]      netlink_unicast+0x449/0x710
[ 1019.521337][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1019.521337][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1019.521337][   T10]      ___sys_sendmsg+0xee/0x170
[ 1019.521337][   T10]      __sys_sendmsg+0xcd/0x170
[ 1019.521337][   T10]      do_syscall_64+0xc6/0x1e0
[ 1019.521337][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1019.521337][   T10] 
[ 1019.523805][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1019.523805][   T10]      netdev_get_by_index+0x5e/0x80
[ 1019.523805][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1019.523805][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1019.523805][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1019.523805][   T10]      ipv6_add_addr+0x411/0x2000
[ 1019.523805][   T10]      inet6_addr_add+0x30e/0xa40
[ 1019.523805][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1019.523805][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1019.523805][   T10]      netlink_rcv_skb+0x130/0x360
[ 1019.523805][   T10]      netlink_unicast+0x449/0x710
[ 1019.523805][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1019.523805][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1019.523805][   T10]      ___sys_sendmsg+0xee/0x170
[ 1019.523805][   T10]      __sys_sendmsg+0xcd/0x170
[ 1019.523805][   T10]      do_syscall_64+0xc6/0x1e0
[ 1019.523805][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1019.523805][   T10] 
[ 1019.526234][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1019.526234][   T10]      netdev_get_by_index+0x5e/0x80
[ 1019.526234][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1019.526234][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1019.526234][   T10]      ip6_route_add+0x1c/0x140
[ 1019.526234][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1019.526234][   T10]      addrconf_add_dev+0xe2/0x170
[ 1019.526234][   T10]      inet6_addr_add+0x12f/0xa40
[ 1019.526234][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1019.526234][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1019.526234][   T10]      netlink_rcv_skb+0x130/0x360
[ 1019.526234][   T10]      netlink_unicast+0x449/0x710
[ 1019.526234][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1019.526234][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1019.526234][   T10]      ___sys_sendmsg+0xee/0x170
[ 1019.526234][   T10]      __sys_sendmsg+0xcd/0x170
[ 1019.526234][   T10]      do_syscall_64+0xc6/0x1e0
[ 1019.526234][   T10] 
[ 1019.528608][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1019.528608][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1019.528608][   T10]      ipv6_find_idev+0x102/0x170
[ 1019.528608][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1019.528608][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1019.528608][   T10]      netlink_rcv_skb+0x130/0x360
[ 1019.528608][   T10]      netlink_unicast+0x449/0x710
[ 1019.528608][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1019.528608][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1019.528608][   T10]      ___sys_sendmsg+0xee/0x170
[ 1019.528608][   T10]      __sys_sendmsg+0xcd/0x170
[ 1019.528608][   T10]      do_syscall_64+0xc6/0x1e0
[ 1019.528608][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1019.528608][   T10] 
[ 1019.530500][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1019.530500][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1019.530500][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1019.530500][   T10]      ipv6_find_idev+0x102/0x170
[ 1019.530500][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1019.530500][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1019.530500][   T10]      netlink_rcv_skb+0x130/0x360
[ 1019.530500][   T10]      netlink_unicast+0x449/0x710
[ 1019.530500][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1019.530500][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1019.530500][   T10]      ___sys_sendmsg+0xee/0x170
[ 1019.530500][   T10]      __sys_sendmsg+0xcd/0x170
[ 1019.530500][   T10]      do_syscall_64+0xc6/0x1e0
[ 1019.530500][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1019.530500][   T10] 
[ 1029.673650][   T10] unregister_netdevice: waiting for eth0 to become free. Usage count = 4
[ 1029.673989][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[ 1029.673989][   T10]      netdev_get_by_index+0x5e/0x80
[ 1029.673989][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1029.673989][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1029.673989][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1029.673989][   T10]      ipv6_add_addr+0x411/0x2000
[ 1029.673989][   T10]      inet6_addr_add+0x30e/0xa40
[ 1029.673989][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.673989][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.673989][   T10]      netlink_rcv_skb+0x130/0x360
[ 1029.673989][   T10]      netlink_unicast+0x449/0x710
[ 1029.673989][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1029.673989][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.673989][   T10]      ___sys_sendmsg+0xee/0x170
[ 1029.673989][   T10]      __sys_sendmsg+0xcd/0x170
[ 1029.673989][   T10]      do_syscall_64+0xc6/0x1e0
[ 1029.673989][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.673989][   T10] 
[ 1029.676370][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[ 1029.676370][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1029.676370][   T10]      ipv6_find_idev+0x102/0x170
[ 1029.676370][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1029.676370][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.676370][   T10]      netlink_rcv_skb+0x130/0x360
[ 1029.676370][   T10]      netlink_unicast+0x449/0x710
[ 1029.676370][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1029.676370][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.676370][   T10]      ___sys_sendmsg+0xee/0x170
[ 1029.676370][   T10]      __sys_sendmsg+0xcd/0x170
[ 1029.676370][   T10]      do_syscall_64+0xc6/0x1e0
[ 1029.676370][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.676370][   T10] 
[ 1029.678179][   T10] ref_tracker: eth0@ffff8880081c15e0 has 1/3 users at
[ 1029.678179][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1029.678179][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1029.678179][   T10]      ipv6_find_idev+0x102/0x170
[ 1029.678179][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1029.678179][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.678179][   T10]      netlink_rcv_skb+0x130/0x360
[ 1029.678179][   T10]      netlink_unicast+0x449/0x710
[ 1029.678179][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1029.678179][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.678179][   T10]      ___sys_sendmsg+0xee/0x170
[ 1029.678179][   T10]      __sys_sendmsg+0xcd/0x170
[ 1029.678179][   T10]      do_syscall_64+0xc6/0x1e0
[ 1029.678179][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.678179][   T10] 
[ 1029.680202][   T10] unregister_netdevice: waiting for eth0 to become free. Usage count = 7
[ 1029.680476][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1029.680476][   T10]      netdev_get_by_index+0x5e/0x80
[ 1029.680476][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1029.680476][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1029.680476][   T10]      addrconf_f6i_alloc+0x265/0x560
[ 1029.680476][   T10]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1029.680476][   T10]      addrconf_join_anycast+0x1c0/0x220
[ 1029.680476][   T10]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1029.680476][   T10]      addrconf_dad_completed+0x12b/0xe20
[ 1029.680476][   T10]      addrconf_dad_begin+0x310/0x670
[ 1029.680476][   T10]      addrconf_dad_work+0x10b/0xab0
[ 1029.680476][   T10]      process_one_work+0x84d/0x18a0
[ 1029.680476][   T10]      worker_thread+0x587/0xd30
[ 1029.680476][   T10]      kthread+0x28a/0x350
[ 1029.680476][   T10]      ret_from_fork+0x31/0x70
[ 1029.680476][   T10]      ret_from_fork_asm+0x1a/0x30
[ 1029.680476][   T10] 
[ 1029.682733][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1029.682733][   T10]      netdev_get_by_index+0x5e/0x80
[ 1029.682733][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1029.682733][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1029.682733][   T10]      ip6_route_add+0x1c/0x140
[ 1029.682733][   T10]      addrconf_prefix_route+0x2a6/0x430
[ 1029.682733][   T10]      inet6_addr_add+0x4f8/0xa40
[ 1029.682733][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.682733][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.682733][   T10]      netlink_rcv_skb+0x130/0x360
[ 1029.682733][   T10]      netlink_unicast+0x449/0x710
[ 1029.682733][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1029.682733][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.682733][   T10]      ___sys_sendmsg+0xee/0x170
[ 1029.682733][   T10]      __sys_sendmsg+0xcd/0x170
[ 1029.682733][   T10]      do_syscall_64+0xc6/0x1e0
[ 1029.682733][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.682733][   T10] 
[ 1029.685418][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1029.685418][   T10]      netdev_get_by_index+0x5e/0x80
[ 1029.685418][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1029.685418][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1029.685418][   T10]      addrconf_f6i_alloc+0x315/0x560
[ 1029.685418][   T10]      ipv6_add_addr+0x411/0x2000
[ 1029.685418][   T10]      inet6_addr_add+0x30e/0xa40
[ 1029.685418][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.685418][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.685418][   T10]      netlink_rcv_skb+0x130/0x360
[ 1029.685418][   T10]      netlink_unicast+0x449/0x710
[ 1029.685418][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1029.685418][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.685418][   T10]      ___sys_sendmsg+0xee/0x170
[ 1029.685418][   T10]      __sys_sendmsg+0xcd/0x170
[ 1029.685418][   T10]      do_syscall_64+0xc6/0x1e0
[ 1029.685418][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.685418][   T10] 
[ 1029.688160][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1029.688160][   T10]      netdev_get_by_index+0x5e/0x80
[ 1029.688160][   T10]      fib6_nh_init+0x3d8/0x1580
[ 1029.688160][   T10]      ip6_route_info_create+0xf18/0x17d0
[ 1029.688160][   T10]      ip6_route_add+0x1c/0x140
[ 1029.688160][   T10]      addrconf_add_mroute+0x1ac/0x2c0
[ 1029.688160][   T10]      addrconf_add_dev+0xe2/0x170
[ 1029.688160][   T10]      inet6_addr_add+0x12f/0xa40
[ 1029.688160][   T10]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.688160][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.688160][   T10]      netlink_rcv_skb+0x130/0x360
[ 1029.688160][   T10]      netlink_unicast+0x449/0x710
[ 1029.688160][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1029.688160][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.688160][   T10]      ___sys_sendmsg+0xee/0x170
[ 1029.688160][   T10]      __sys_sendmsg+0xcd/0x170
[ 1029.688160][   T10]      do_syscall_64+0xc6/0x1e0
[ 1029.688160][   T10] 
[ 1029.690932][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1029.690932][   T10]      ipv6_add_dev+0x3ba/0x11c0
[ 1029.690932][   T10]      ipv6_find_idev+0x102/0x170
[ 1029.690932][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1029.690932][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.690932][   T10]      netlink_rcv_skb+0x130/0x360
[ 1029.690932][   T10]      netlink_unicast+0x449/0x710
[ 1029.690932][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1029.690932][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.690932][   T10]      ___sys_sendmsg+0xee/0x170
[ 1029.690932][   T10]      __sys_sendmsg+0xcd/0x170
[ 1029.690932][   T10]      do_syscall_64+0xc6/0x1e0
[ 1029.690932][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.690932][   T10] 
[ 1029.692894][   T10] ref_tracker: r1h1@ffff888008b845e0 has 1/6 users at
[ 1029.692894][   T10]      neigh_parms_alloc+0x1e5/0x510
[ 1029.692894][   T10]      ipv6_add_dev+0x2fe/0x11c0
[ 1029.692894][   T10]      ipv6_find_idev+0x102/0x170
[ 1029.692894][   T10]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1029.692894][   T10]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.692894][   T10]      netlink_rcv_skb+0x130/0x360
[ 1029.692894][   T10]      netlink_unicast+0x449/0x710
[ 1029.692894][   T10]      netlink_sendmsg+0x723/0xbe0
[ 1029.692894][   T10]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.692894][   T10]      ___sys_sendmsg+0xee/0x170
[ 1029.692894][   T10]      __sys_sendmsg+0xcd/0x170
[ 1029.692894][   T10]      do_syscall_64+0xc6/0x1e0
[ 1029.692894][   T10]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.692894][   T10]