0] unregister_netdevice: waiting for veth2 to become free. Usage count = 7 [10384.716798][ T10] ref_tracker: veth2@ffff8880053995e0 has 1/6 users at [10384.716798][ T10] netdev_get_by_index+0x5e/0x80 [10384.716798][ T10] fib6_nh_init+0x3d8/0x1580 [10384.716798][ T10] ip6_route_info_create+0xf18/0x17d0 [10384.716798][ T10] addrconf_f6i_alloc+0x265/0x560 [10384.716798][ T10] __ipv6_dev_ac_inc+0x25f/0xb10 [10384.716798][ T10] addrconf_join_anycast+0x1c0/0x220 [10384.716798][ T10] __ipv6_ifa_notify+0x6b3/0xaf0 [10384.716798][ T10] addrconf_dad_completed+0x12b/0xe20 [10384.716798][ T10] addrconf_dad_begin+0x310/0x670 [10384.716798][ T10] addrconf_dad_work+0x10b/0xab0 [10384.716798][ T10] process_one_work+0x84d/0x18a0 [10384.716798][ T10] worker_thread+0x587/0xd30 [10384.716798][ T10] kthread+0x28a/0x350 [10384.716798][ T10] ret_from_fork+0x31/0x70 [10384.716798][ T10] ret_from_fork_asm+0x1a/0x30 [10384.716798][ T10] [10384.721802][ T10] ref_tracker: veth2@ffff8880053995e0 has 1/6 users at [10384.721802][ T10] netdev_get_by_index+0x5e/0x80 [10384.721802][ T10] fib6_nh_init+0x3d8/0x1580 [10384.721802][ T10] ip6_route_info_create+0xf18/0x17d0 [10384.721802][ T10] ip6_route_add+0x1c/0x140 [10384.721802][ T10] addrconf_prefix_route+0x2a6/0x430 [10384.721802][ T10] inet6_addr_add+0x4f8/0xa40 [10384.721802][ T10] inet6_rtm_newaddr+0x560/0x6b0 [10384.721802][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [10384.721802][ T10] netlink_rcv_skb+0x130/0x360 [10384.721802][ T10] netlink_unicast+0x449/0x710 [10384.721802][ T10] netlink_sendmsg+0x723/0xbe0 [10384.721802][ T10] ____sys_sendmsg+0x7b2/0xa10 [10384.721802][ T10] ___sys_sendmsg+0xee/0x170 [10384.721802][ T10] __sys_sendmsg+0xcd/0x170 [10384.721802][ T10] do_syscall_64+0xc6/0x1e0 [10384.721802][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10384.721802][ T10] [10384.749775][ T10] ref_tracker: veth2@ffff8880053995e0 has 1/6 users at [10384.749775][ T10] netdev_get_by_index+0x5e/0x80 [10384.749775][ T10] fib6_nh_init+0x3d8/0x1580 [10384.749775][ T10] ip6_route_info_create+0xf18/0x17d0 [10384.749775][ T10] addrconf_f6i_alloc+0x315/0x560 [10384.749775][ T10] ipv6_add_addr+0x411/0x2000 [10384.749775][ T10] inet6_addr_add+0x30e/0xa40 [10384.749775][ T10] inet6_rtm_newaddr+0x560/0x6b0 [10384.749775][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [10384.749775][ T10] netlink_rcv_skb+0x130/0x360 [10384.749775][ T10] netlink_unicast+0x449/0x710 [10384.749775][ T10] netlink_sendmsg+0x723/0xbe0 [10384.749775][ T10] ____sys_sendmsg+0x7b2/0xa10 [10384.749775][ T10] ___sys_sendmsg+0xee/0x170 [10384.749775][ T10] __sys_sendmsg+0xcd/0x170 [10384.749775][ T10] do_syscall_64+0xc6/0x1e0 [10384.749775][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10384.749775][ T10] [10384.791580][ T10] ref_tracker: veth2@ffff8880053995e0 has 1/6 users at [10384.791580][ T10] netdev_get_by_index+0x5e/0x80 [10384.791580][ T10] fib6_nh_init+0x3d8/0x1580 [10384.791580][ T10] ip6_route_info_create+0xf18/0x17d0 [10384.791580][ T10] ip6_route_add+0x1c/0x140 [10384.791580][ T10] addrconf_add_mroute+0x1ac/0x2c0 [10384.791580][ T10] addrconf_add_dev+0xe2/0x170 [10384.791580][ T10] inet6_addr_add+0x12f/0xa40 [10384.791580][ T10] inet6_rtm_newaddr+0x560/0x6b0 [10384.791580][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [10384.791580][ T10] netlink_rcv_skb+0x130/0x360 [10384.791580][ T10] netlink_unicast+0x449/0x710 [10384.791580][ T10] netlink_sendmsg+0x723/0xbe0 [10384.791580][ T10] ____sys_sendmsg+0x7b2/0xa10 [10384.791580][ T10] ___sys_sendmsg+0xee/0x170 [10384.791580][ T10] __sys_sendmsg+0xcd/0x170 [10384.791580][ T10] do_syscall_64+0xc6/0x1e0 [10384.791580][ T10] [10384.881521][ T10] ref_tracker: veth2@ffff8880053995e0 has 1/6 users at [10384.881521][ T10] ipv6_add_dev+0x3ba/0x11c0 [10384.881521][ T10] ipv6_find_idev+0x102/0x170 [10384.881521][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [10384.881521][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [10384.881521][ T10] netlink_rcv_skb+0x130/0x360 [10384.881521][ T10] netlink_unicast+0x449/0x710 [10384.881521][ T10] netlink_sendmsg+0x723/0xbe0 [10384.881521][ T10] ____sys_sendmsg+0x7b2/0xa10 [10384.881521][ T10] ___sys_sendmsg+0xee/0x170 [10384.881521][ T10] __sys_sendmsg+0xcd/0x170 [10384.881521][ T10] do_syscall_64+0xc6/0x1e0 [10384.881521][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10384.881521][ T10] [10384.885648][ T10] ref_tracker: veth2@ffff8880053995e0 has 1/6 users at [10384.885648][ T10] neigh_parms_alloc+0x1e5/0x510 [10384.885648][ T10] ipv6_add_dev+0x2fe/0x11c0 [10384.885648][ T10] ipv6_find_idev+0x102/0x170 [10384.885648][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [10384.885648][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [10384.885648][ T10] netlink_rcv_skb+0x130/0x360 [10384.885648][ T10] netlink_unicast+0x449/0x710 [10384.885648][ T10] netlink_sendmsg+0x723/0xbe0 [10384.885648][ T10] ____sys_sendmsg+0x7b2/0xa10 [10384.885648][ T10] ___sys_sendmsg+0xee/0x170 [10384.885648][ T10] __sys_sendmsg+0xcd/0x170 [10384.885648][ T10] do_syscall_64+0xc6/0x1e0 [10384.885648][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10384.885648][ T10] [10388.649674][ T1167] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10388.661116][ T1167] ref_tracker: dummy0@ffff88800f1745e0 has 1/7 users at [10388.661116][ T1167] dst_init+0x84/0x4a0 [10388.661116][ T1167] dst_alloc+0x97/0x150 [10388.661116][ T1167] ip6_dst_alloc+0x23/0x90 [10388.661116][ T1167] ip6_rt_pcpu_alloc+0x1e6/0x520 [10388.661116][ T1167] ip6_pol_route+0x56f/0x840 [10388.661116][ T1167] fib6_rule_lookup+0x334/0x630 [10388.661116][ T1167] ip6_route_output_flags+0x259/0x480 [10388.661116][ T1167] inet6_rtm_getroute+0x980/0xf70 [10388.661116][ T1167] rtnetlink_rcv_msg+0x712/0xbf0 [10388.661116][ T1167] netlink_rcv_skb+0x130/0x360 [10388.661116][ T1167] netlink_unicast+0x449/0x710 [10388.661116][ T1167] netlink_sendmsg+0x723/0xbe0 [10388.661116][ T1167] ____sys_sendmsg+0x7b2/0xa10 [10388.661116][ T1167] ___sys_sendmsg+0xee/0x170 [10388.661116][ T1167] __sys_sendmsg+0xcd/0x170 [10388.661116][ T1167] do_syscall_64+0xc6/0x1e0 [10388.661116][ T1167] [10388.669580][ T1167] ref_tracker: dummy0@ffff88800f1745e0 has 1/7 users at [10388.669580][ T1167] netdev_get_by_index+0x5e/0x80 [10388.669580][ T1167] fib6_nh_init+0x3d8/0x1580 [10388.669580][ T1167] ip6_route_info_create+0xf18/0x17d0 [10388.669580][ T1167] addrconf_f6i_alloc+0x265/0x560 [10388.669580][ T1167] __ipv6_dev_ac_inc+0x25f/0xb10 [10388.669580][ T1167] addrconf_join_anycast+0x1c0/0x220 [10388.669580][ T1167] __ipv6_ifa_notify+0x6b3/0xaf0 [10388.669580][ T1167] addrconf_dad_completed+0x12b/0xe20 [10388.669580][ T1167] addrconf_dad_begin+0x310/0x670 [10388.669580][ T1167] addrconf_dad_work+0x10b/0xab0 [10388.669580][ T1167] process_one_work+0x84d/0x18a0 [10388.669580][ T1167] worker_thread+0x587/0xd30 [10388.669580][ T1167] kthread+0x28a/0x350 [10388.669580][ T1167] ret_from_fork+0x31/0x70 [10388.669580][ T1167] ret_from_fork_asm+0x1a/0x30 [10388.669580][ T1167] [10388.676736][ T1167] ref_tracker: dummy0@ffff88800f1745e0 has 1/7 users at [10388.676736][ T1167] netdev_get_by_index+0x5e/0x80 [10388.676736][ T1167] fib6_nh_init+0x3d8/0x1580 [10388.676736][ T1167] ip6_route_info_create+0xf18/0x17d0 [10388.676736][ T1167] ip6_route_add+0x1c/0x140 [10388.676736][ T1167] addrconf_prefix_route+0x2a6/0x430 [10388.676736][ T1167] inet6_addr_add+0x4f8/0xa40 [10388.676736][ T1167] inet6_rtm_newaddr+0x560/0x6b0 [10388.676736][ T1167] rtnetlink_rcv_msg+0x2fb/0xbf0 [10388.676736][ T1167] netlink_rcv_skb+0x130/0x360 [10388.676736][ T1167] netlink_unicast+0x449/0x710 [10388.676736][ T1167] netlink_sendmsg+0x723/0xbe0 [10388.676736][ T1167] ____sys_sendmsg+0x7b2/0xa10 [10388.676736][ T1167] ___sys_sendmsg+0xee/0x170 [10388.676736][ T1167] __sys_sendmsg+0xcd/0x170 [10388.676736][ T1167] do_syscall_64+0xc6/0x1e0 [10388.676736][ T1167] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10388.676736][ T1167] [10388.694668][ T1167] ref_tracker: dummy0@ffff88800f1745e0 has 1/7 users at [10388.694668][ T1167] netdev_get_by_index+0x5e/0x80 [10388.694668][ T1167] fib6_nh_init+0x3d8/0x1580 [10388.694668][ T1167] ip6_route_info_create+0xf18/0x17d0 [10388.694668][ T1167] addrconf_f6i_alloc+0x315/0x560 [10388.694668][ T1167] ipv6_add_addr+0x411/0x2000 [10388.694668][ T1167] inet6_addr_add+0x30e/0xa40 [10388.694668][ T1167] inet6_rtm_newaddr+0x560/0x6b0 [10388.694668][ T1167] rtnetlink_rcv_msg+0x2fb/0xbf0 [10388.694668][ T1167] netlink_rcv_skb+0x130/0x360 [10388.694668][ T1167] netlink_unicast+0x449/0x710 [10388.694668][ T1167] netlink_sendmsg+0x723/0xbe0 [10388.694668][ T1167] ____sys_sendmsg+0x7b2/0xa10 [10388.694668][ T1167] ___sys_sendmsg+0xee/0x170 [10388.694668][ T1167] __sys_sendmsg+0xcd/0x170 [10388.694668][ T1167] do_syscall_64+0xc6/0x1e0 [10388.694668][ T1167] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10388.694668][ T1167] [10388.751919][ T1167] ref_tracker: dummy0@ffff88800f1745e0 has 1/7 users at [10388.751919][ T1167] netdev_get_by_index+0x5e/0x80 [10388.751919][ T1167] fib6_nh_init+0x3d8/0x1580 [10388.751919][ T1167] ip6_route_info_create+0xf18/0x17d0 [10388.751919][ T1167] ip6_route_add+0x1c/0x140 [10388.751919][ T1167] addrconf_add_mroute+0x1ac/0x2c0 [10388.751919][ T1167] addrconf_add_dev+0xe2/0x170 [10388.751919][ T1167] inet6_addr_add+0x12f/0xa40 [10388.751919][ T1167] inet6_rtm_newaddr+0x560/0x6b0 [10388.751919][ T1167] rtnetlink_rcv_msg+0x2fb/0xbf0 [10388.751919][ T1167] netlink_rcv_skb+0x130/0x360 [10388.751919][ T1167] netlink_unicast+0x449/0x710 [10388.751919][ T1167] netlink_sendmsg+0x723/0xbe0 [10388.751919][ T1167] ____sys_sendmsg+0x7b2/0xa10 [10388.751919][ T1167] ___sys_sendmsg+0xee/0x170 [10388.751919][ T1167] __sys_sendmsg+0xcd/0x170 [10388.751919][ T1167] do_syscall_64+0xc6/0x1e0 [10388.751919][ T1167] [10388.759823][ T1167] ref_tracker: dummy0@ffff88800f1745e0 has 1/7 users at [10388.759823][ T1167] ipv6_add_dev+0x3ba/0x11c0 [10388.759823][ T1167] ipv6_find_idev+0x102/0x170 [10388.759823][ T1167] inet6_rtm_newaddr+0x37c/0x6b0 [10388.759823][ T1167] rtnetlink_rcv_msg+0x2fb/0xbf0 [10388.759823][ T1167] netlink_rcv_skb+0x130/0x360 [10388.759823][ T1167] netlink_unicast+0x449/0x710 [10388.759823][ T1167] netlink_sendmsg+0x723/0xbe0 [10388.759823][ T1167] ____sys_sendmsg+0x7b2/0xa10 [10388.759823][ T1167] ___sys_sendmsg+0xee/0x170 [10388.759823][ T1167] __sys_sendmsg+0xcd/0x170 [10388.759823][ T1167] do_syscall_64+0xc6/0x1e0 [10388.759823][ T1167] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10388.759823][ T1167] [10388.765888][ T1167] ref_tracker: dummy0@ffff88800f1745e0 has 1/7 users at [10388.765888][ T1167] neigh_parms_alloc+0x1e5/0x510 [10388.765888][ T1167] ipv6_add_dev+0x2fe/0x11c0 [10388.765888][ T1167] ipv6_find_idev+0x102/0x170 [10388.765888][ T1167] inet6_rtm_newaddr+0x37c/0x6b0 [10388.765888][ T1167] rtnetlink_rcv_msg+0x2fb/0xbf0 [10388.765888][ T1167] netlink_rcv_skb+0x130/0x360 [10388.765888][ T1167] netlink_unicast+0x449/0x710 [10388.765888][ T1167] netlink_sendmsg+0x723/0xbe0 [10388.765888][ T1167] ____sys_sendmsg+0x7b2/0xa10 [10388.765888][ T1167] ___sys_sendmsg+0xee/0x170 [10388.765888][ T1167] __sys_sendmsg+0xcd/0x170 [10388.765888][ T1167] do_syscall_64+0xc6/0x1e0 [10388.765888][ T1167] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10388.765888][ T1167]