[ 1847.336933][ T74] unregister_netdevice: waiting for veth3 to become free. Usage count = 7 [ 1847.337364][ T74] ref_tracker: veth3@ffff88800b06c5e0 has 1/6 users at [ 1847.337364][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.337364][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.337364][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.337364][ T74] addrconf_f6i_alloc+0x265/0x560 [ 1847.337364][ T74] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1847.337364][ T74] addrconf_join_anycast+0x1c0/0x220 [ 1847.337364][ T74] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1847.337364][ T74] addrconf_dad_completed+0x12b/0xe20 [ 1847.337364][ T74] addrconf_dad_begin+0x310/0x670 [ 1847.337364][ T74] addrconf_dad_work+0x10b/0xab0 [ 1847.337364][ T74] process_one_work+0x84d/0x18a0 [ 1847.337364][ T74] worker_thread+0x587/0xd30 [ 1847.337364][ T74] kthread+0x28a/0x350 [ 1847.337364][ T74] ret_from_fork+0x31/0x70 [ 1847.337364][ T74] ret_from_fork_asm+0x1a/0x30 [ 1847.337364][ T74] [ 1847.339821][ T74] ref_tracker: veth3@ffff88800b06c5e0 has 1/6 users at [ 1847.339821][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.339821][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.339821][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.339821][ T74] ip6_route_add+0x1c/0x140 [ 1847.339821][ T74] addrconf_prefix_route+0x2a6/0x430 [ 1847.339821][ T74] inet6_addr_add+0x4f8/0xa40 [ 1847.339821][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1847.339821][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.339821][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.339821][ T74] netlink_unicast+0x449/0x710 [ 1847.339821][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.339821][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.339821][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.339821][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.339821][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.339821][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.339821][ T74] [ 1847.342490][ T74] ref_tracker: veth3@ffff88800b06c5e0 has 1/6 users at [ 1847.342490][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.342490][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.342490][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.342490][ T74] addrconf_f6i_alloc+0x315/0x560 [ 1847.342490][ T74] ipv6_add_addr+0x411/0x2000 [ 1847.342490][ T74] inet6_addr_add+0x30e/0xa40 [ 1847.342490][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1847.342490][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.342490][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.342490][ T74] netlink_unicast+0x449/0x710 [ 1847.342490][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.342490][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.342490][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.342490][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.342490][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.342490][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.342490][ T74] [ 1847.345291][ T74] ref_tracker: veth3@ffff88800b06c5e0 has 1/6 users at [ 1847.345291][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.345291][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.345291][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.345291][ T74] ip6_route_add+0x1c/0x140 [ 1847.345291][ T74] addrconf_add_mroute+0x1ac/0x2c0 [ 1847.345291][ T74] addrconf_add_dev+0xe2/0x170 [ 1847.345291][ T74] inet6_addr_add+0x12f/0xa40 [ 1847.345291][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1847.345291][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.345291][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.345291][ T74] netlink_unicast+0x449/0x710 [ 1847.345291][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.345291][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.345291][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.345291][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.345291][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.345291][ T74] [ 1847.348057][ T74] ref_tracker: veth3@ffff88800b06c5e0 has 1/6 users at [ 1847.348057][ T74] ipv6_add_dev+0x3ba/0x11c0 [ 1847.348057][ T74] ipv6_find_idev+0x102/0x170 [ 1847.348057][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1847.348057][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.348057][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.348057][ T74] netlink_unicast+0x449/0x710 [ 1847.348057][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.348057][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.348057][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.348057][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.348057][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.348057][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.348057][ T74] [ 1847.350210][ T74] ref_tracker: veth3@ffff88800b06c5e0 has 1/6 users at [ 1847.350210][ T74] neigh_parms_alloc+0x1e5/0x510 [ 1847.350210][ T74] ipv6_add_dev+0x2fe/0x11c0 [ 1847.350210][ T74] ipv6_find_idev+0x102/0x170 [ 1847.350210][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1847.350210][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.350210][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.350210][ T74] netlink_unicast+0x449/0x710 [ 1847.350210][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.350210][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.350210][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.350210][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.350210][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.350210][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.350210][ T74] [ 1847.352603][ T74] unregister_netdevice: waiting for veth4 to become free. Usage count = 7 [ 1847.352921][ T74] ref_tracker: veth4@ffff88800a4215e0 has 1/6 users at [ 1847.352921][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.352921][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.352921][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.352921][ T74] addrconf_f6i_alloc+0x265/0x560 [ 1847.352921][ T74] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1847.352921][ T74] addrconf_join_anycast+0x1c0/0x220 [ 1847.352921][ T74] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1847.352921][ T74] addrconf_dad_completed+0x12b/0xe20 [ 1847.352921][ T74] addrconf_dad_begin+0x310/0x670 [ 1847.352921][ T74] addrconf_dad_work+0x10b/0xab0 [ 1847.352921][ T74] process_one_work+0x84d/0x18a0 [ 1847.352921][ T74] worker_thread+0x587/0xd30 [ 1847.352921][ T74] kthread+0x28a/0x350 [ 1847.352921][ T74] ret_from_fork+0x31/0x70 [ 1847.352921][ T74] ret_from_fork_asm+0x1a/0x30 [ 1847.352921][ T74] [ 1847.355410][ T74] ref_tracker: veth4@ffff88800a4215e0 has 1/6 users at [ 1847.355410][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.355410][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.355410][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.355410][ T74] ip6_route_add+0x1c/0x140 [ 1847.355410][ T74] addrconf_prefix_route+0x2a6/0x430 [ 1847.355410][ T74] inet6_addr_add+0x4f8/0xa40 [ 1847.355410][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1847.355410][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.355410][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.355410][ T74] netlink_unicast+0x449/0x710 [ 1847.355410][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.355410][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.355410][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.355410][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.355410][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.355410][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.355410][ T74] [ 1847.357912][ T74] ref_tracker: veth4@ffff88800a4215e0 has 1/6 users at [ 1847.357912][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.357912][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.357912][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.357912][ T74] addrconf_f6i_alloc+0x315/0x560 [ 1847.357912][ T74] ipv6_add_addr+0x411/0x2000 [ 1847.357912][ T74] inet6_addr_add+0x30e/0xa40 [ 1847.357912][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1847.357912][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.357912][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.357912][ T74] netlink_unicast+0x449/0x710 [ 1847.357912][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.357912][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.357912][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.357912][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.357912][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.357912][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.357912][ T74] [ 1847.360402][ T74] ref_tracker: veth4@ffff88800a4215e0 has 1/6 users at [ 1847.360402][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.360402][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.360402][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.360402][ T74] ip6_route_add+0x1c/0x140 [ 1847.360402][ T74] addrconf_add_mroute+0x1ac/0x2c0 [ 1847.360402][ T74] addrconf_add_dev+0xe2/0x170 [ 1847.360402][ T74] inet6_addr_add+0x12f/0xa40 [ 1847.360402][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1847.360402][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.360402][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.360402][ T74] netlink_unicast+0x449/0x710 [ 1847.360402][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.360402][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.360402][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.360402][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.360402][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.360402][ T74] [ 1847.363048][ T74] ref_tracker: veth4@ffff88800a4215e0 has 1/6 users at [ 1847.363048][ T74] ipv6_add_dev+0x3ba/0x11c0 [ 1847.363048][ T74] ipv6_find_idev+0x102/0x170 [ 1847.363048][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1847.363048][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.363048][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.363048][ T74] netlink_unicast+0x449/0x710 [ 1847.363048][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.363048][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.363048][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.363048][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.363048][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.363048][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.363048][ T74] [ 1847.365255][ T74] ref_tracker: veth4@ffff88800a4215e0 has 1/6 users at [ 1847.365255][ T74] neigh_parms_alloc+0x1e5/0x510 [ 1847.365255][ T74] ipv6_add_dev+0x2fe/0x11c0 [ 1847.365255][ T74] ipv6_find_idev+0x102/0x170 [ 1847.365255][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1847.365255][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.365255][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.365255][ T74] netlink_unicast+0x449/0x710 [ 1847.365255][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.365255][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.365255][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.365255][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.365255][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.365255][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.365255][ T74] [ 1847.367496][ T74] unregister_netdevice: waiting for veth1 to become free. Usage count = 7 [ 1847.367793][ T74] ref_tracker: veth1@ffff8880080815e0 has 1/6 users at [ 1847.367793][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.367793][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.367793][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.367793][ T74] addrconf_f6i_alloc+0x265/0x560 [ 1847.367793][ T74] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1847.367793][ T74] addrconf_join_anycast+0x1c0/0x220 [ 1847.367793][ T74] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1847.367793][ T74] addrconf_dad_completed+0x12b/0xe20 [ 1847.367793][ T74] addrconf_dad_begin+0x310/0x670 [ 1847.367793][ T74] addrconf_dad_work+0x10b/0xab0 [ 1847.367793][ T74] process_one_work+0x84d/0x18a0 [ 1847.367793][ T74] worker_thread+0x587/0xd30 [ 1847.367793][ T74] kthread+0x28a/0x350 [ 1847.367793][ T74] ret_from_fork+0x31/0x70 [ 1847.367793][ T74] ret_from_fork_asm+0x1a/0x30 [ 1847.367793][ T74] [ 1847.370173][ T74] ref_tracker: veth1@ffff8880080815e0 has 1/6 users at [ 1847.370173][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.370173][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.370173][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.370173][ T74] ip6_route_add+0x1c/0x140 [ 1847.370173][ T74] addrconf_prefix_route+0x2a6/0x430 [ 1847.370173][ T74] inet6_addr_add+0x4f8/0xa40 [ 1847.370173][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1847.370173][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.370173][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.370173][ T74] netlink_unicast+0x449/0x710 [ 1847.370173][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.370173][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.370173][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.370173][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.370173][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.370173][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.370173][ T74] [ 1847.372805][ T74] ref_tracker: veth1@ffff8880080815e0 has 1/6 users at [ 1847.372805][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.372805][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.372805][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.372805][ T74] addrconf_f6i_alloc+0x315/0x560 [ 1847.372805][ T74] ipv6_add_addr+0x411/0x2000 [ 1847.372805][ T74] inet6_addr_add+0x30e/0xa40 [ 1847.372805][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1847.372805][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.372805][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.372805][ T74] netlink_unicast+0x449/0x710 [ 1847.372805][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.372805][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.372805][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.372805][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.372805][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.372805][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.372805][ T74] [ 1847.375339][ T74] ref_tracker: veth1@ffff8880080815e0 has 1/6 users at [ 1847.375339][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.375339][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.375339][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.375339][ T74] ip6_route_add+0x1c/0x140 [ 1847.375339][ T74] addrconf_add_mroute+0x1ac/0x2c0 [ 1847.375339][ T74] addrconf_add_dev+0xe2/0x170 [ 1847.375339][ T74] inet6_addr_add+0x12f/0xa40 [ 1847.375339][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1847.375339][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.375339][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.375339][ T74] netlink_unicast+0x449/0x710 [ 1847.375339][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.375339][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.375339][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.375339][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.375339][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.375339][ T74] [ 1847.378086][ T74] ref_tracker: veth1@ffff8880080815e0 has 1/6 users at [ 1847.378086][ T74] ipv6_add_dev+0x3ba/0x11c0 [ 1847.378086][ T74] ipv6_find_idev+0x102/0x170 [ 1847.378086][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1847.378086][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.378086][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.378086][ T74] netlink_unicast+0x449/0x710 [ 1847.378086][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.378086][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.378086][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.378086][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.378086][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.378086][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.378086][ T74] [ 1847.380236][ T74] ref_tracker: veth1@ffff8880080815e0 has 1/6 users at [ 1847.380236][ T74] neigh_parms_alloc+0x1e5/0x510 [ 1847.380236][ T74] ipv6_add_dev+0x2fe/0x11c0 [ 1847.380236][ T74] ipv6_find_idev+0x102/0x170 [ 1847.380236][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1847.380236][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.380236][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.380236][ T74] netlink_unicast+0x449/0x710 [ 1847.380236][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.380236][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.380236][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.380236][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.380236][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.380236][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.380236][ T74] [ 1847.382976][ T74] unregister_netdevice: waiting for veth2 to become free. Usage count = 7 [ 1847.383279][ T74] ref_tracker: veth2@ffff88800a6145e0 has 1/6 users at [ 1847.383279][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.383279][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.383279][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.383279][ T74] addrconf_f6i_alloc+0x265/0x560 [ 1847.383279][ T74] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1847.383279][ T74] addrconf_join_anycast+0x1c0/0x220 [ 1847.383279][ T74] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1847.383279][ T74] addrconf_dad_completed+0x12b/0xe20 [ 1847.383279][ T74] addrconf_dad_begin+0x310/0x670 [ 1847.383279][ T74] addrconf_dad_work+0x10b/0xab0 [ 1847.383279][ T74] process_one_work+0x84d/0x18a0 [ 1847.383279][ T74] worker_thread+0x587/0xd30 [ 1847.383279][ T74] kthread+0x28a/0x350 [ 1847.383279][ T74] ret_from_fork+0x31/0x70 [ 1847.383279][ T74] ret_from_fork_asm+0x1a/0x30 [ 1847.383279][ T74] [ 1847.385816][ T74] ref_tracker: veth2@ffff88800a6145e0 has 1/6 users at [ 1847.385816][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.385816][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.385816][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.385816][ T74] ip6_route_add+0x1c/0x140 [ 1847.385816][ T74] addrconf_prefix_route+0x2a6/0x430 [ 1847.385816][ T74] inet6_addr_add+0x4f8/0xa40 [ 1847.385816][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1847.385816][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.385816][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.385816][ T74] netlink_unicast+0x449/0x710 [ 1847.385816][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.385816][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.385816][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.385816][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.385816][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.385816][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.385816][ T74] [ 1847.388656][ T74] ref_tracker: veth2@ffff88800a6145e0 has 1/6 users at [ 1847.388656][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.388656][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.388656][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.388656][ T74] addrconf_f6i_alloc+0x315/0x560 [ 1847.388656][ T74] ipv6_add_addr+0x411/0x2000 [ 1847.388656][ T74] inet6_addr_add+0x30e/0xa40 [ 1847.388656][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1847.388656][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.388656][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.388656][ T74] netlink_unicast+0x449/0x710 [ 1847.388656][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.388656][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.388656][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.388656][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.388656][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.388656][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.388656][ T74] [ 1847.391431][ T74] ref_tracker: veth2@ffff88800a6145e0 has 1/6 users at [ 1847.391431][ T74] netdev_get_by_index+0x5e/0x80 [ 1847.391431][ T74] fib6_nh_init+0x3d8/0x1580 [ 1847.391431][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1847.391431][ T74] ip6_route_add+0x1c/0x140 [ 1847.391431][ T74] addrconf_add_mroute+0x1ac/0x2c0 [ 1847.391431][ T74] addrconf_add_dev+0xe2/0x170 [ 1847.391431][ T74] inet6_addr_add+0x12f/0xa40 [ 1847.391431][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1847.391431][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.391431][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.391431][ T74] netlink_unicast+0x449/0x710 [ 1847.391431][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.391431][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.391431][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.391431][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.391431][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.391431][ T74] [ 1847.394102][ T74] ref_tracker: veth2@ffff88800a6145e0 has 1/6 users at [ 1847.394102][ T74] ipv6_add_dev+0x3ba/0x11c0 [ 1847.394102][ T74] ipv6_find_idev+0x102/0x170 [ 1847.394102][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1847.394102][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.394102][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.394102][ T74] netlink_unicast+0x449/0x710 [ 1847.394102][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.394102][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.394102][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.394102][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.394102][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.394102][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.394102][ T74] [ 1847.396248][ T74] ref_tracker: veth2@ffff88800a6145e0 has 1/6 users at [ 1847.396248][ T74] neigh_parms_alloc+0x1e5/0x510 [ 1847.396248][ T74] ipv6_add_dev+0x2fe/0x11c0 [ 1847.396248][ T74] ipv6_find_idev+0x102/0x170 [ 1847.396248][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1847.396248][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1847.396248][ T74] netlink_rcv_skb+0x130/0x360 [ 1847.396248][ T74] netlink_unicast+0x449/0x710 [ 1847.396248][ T74] netlink_sendmsg+0x723/0xbe0 [ 1847.396248][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1847.396248][ T74] ___sys_sendmsg+0xee/0x170 [ 1847.396248][ T74] __sys_sendmsg+0xcd/0x170 [ 1847.396248][ T74] do_syscall_64+0xc6/0x1e0 [ 1847.396248][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1847.396248][ T74] [ 1857.552835][ T74] unregister_netdevice: waiting for veth3 to become free. Usage count = 7 [ 1857.553223][ T74] ref_tracker: veth3@ffff88800b06c5e0 has 1/6 users at [ 1857.553223][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.553223][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.553223][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.553223][ T74] addrconf_f6i_alloc+0x265/0x560 [ 1857.553223][ T74] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1857.553223][ T74] addrconf_join_anycast+0x1c0/0x220 [ 1857.553223][ T74] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1857.553223][ T74] addrconf_dad_completed+0x12b/0xe20 [ 1857.553223][ T74] addrconf_dad_begin+0x310/0x670 [ 1857.553223][ T74] addrconf_dad_work+0x10b/0xab0 [ 1857.553223][ T74] process_one_work+0x84d/0x18a0 [ 1857.553223][ T74] worker_thread+0x587/0xd30 [ 1857.553223][ T74] kthread+0x28a/0x350 [ 1857.553223][ T74] ret_from_fork+0x31/0x70 [ 1857.553223][ T74] ret_from_fork_asm+0x1a/0x30 [ 1857.553223][ T74] [ 1857.555385][ T74] ref_tracker: veth3@ffff88800b06c5e0 has 1/6 users at [ 1857.555385][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.555385][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.555385][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.555385][ T74] ip6_route_add+0x1c/0x140 [ 1857.555385][ T74] addrconf_prefix_route+0x2a6/0x430 [ 1857.555385][ T74] inet6_addr_add+0x4f8/0xa40 [ 1857.555385][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1857.555385][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.555385][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.555385][ T74] netlink_unicast+0x449/0x710 [ 1857.555385][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.555385][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.555385][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.555385][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.555385][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.555385][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.555385][ T74] [ 1857.557652][ T74] ref_tracker: veth3@ffff88800b06c5e0 has 1/6 users at [ 1857.557652][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.557652][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.557652][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.557652][ T74] addrconf_f6i_alloc+0x315/0x560 [ 1857.557652][ T74] ipv6_add_addr+0x411/0x2000 [ 1857.557652][ T74] inet6_addr_add+0x30e/0xa40 [ 1857.557652][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1857.557652][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.557652][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.557652][ T74] netlink_unicast+0x449/0x710 [ 1857.557652][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.557652][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.557652][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.557652][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.557652][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.557652][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.557652][ T74] [ 1857.559928][ T74] ref_tracker: veth3@ffff88800b06c5e0 has 1/6 users at [ 1857.559928][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.559928][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.559928][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.559928][ T74] ip6_route_add+0x1c/0x140 [ 1857.559928][ T74] addrconf_add_mroute+0x1ac/0x2c0 [ 1857.559928][ T74] addrconf_add_dev+0xe2/0x170 [ 1857.559928][ T74] inet6_addr_add+0x12f/0xa40 [ 1857.559928][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1857.559928][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.559928][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.559928][ T74] netlink_unicast+0x449/0x710 [ 1857.559928][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.559928][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.559928][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.559928][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.559928][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.559928][ T74] [ 1857.562183][ T74] ref_tracker: veth3@ffff88800b06c5e0 has 1/6 users at [ 1857.562183][ T74] ipv6_add_dev+0x3ba/0x11c0 [ 1857.562183][ T74] ipv6_find_idev+0x102/0x170 [ 1857.562183][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1857.562183][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.562183][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.562183][ T74] netlink_unicast+0x449/0x710 [ 1857.562183][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.562183][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.562183][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.562183][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.562183][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.562183][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.562183][ T74] [ 1857.563955][ T74] ref_tracker: veth3@ffff88800b06c5e0 has 1/6 users at [ 1857.563955][ T74] neigh_parms_alloc+0x1e5/0x510 [ 1857.563955][ T74] ipv6_add_dev+0x2fe/0x11c0 [ 1857.563955][ T74] ipv6_find_idev+0x102/0x170 [ 1857.563955][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1857.563955][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.563955][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.563955][ T74] netlink_unicast+0x449/0x710 [ 1857.563955][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.563955][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.563955][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.563955][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.563955][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.563955][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.563955][ T74] [ 1857.565887][ T74] unregister_netdevice: waiting for veth4 to become free. Usage count = 7 [ 1857.566175][ T74] ref_tracker: veth4@ffff88800a4215e0 has 1/6 users at [ 1857.566175][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.566175][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.566175][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.566175][ T74] addrconf_f6i_alloc+0x265/0x560 [ 1857.566175][ T74] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1857.566175][ T74] addrconf_join_anycast+0x1c0/0x220 [ 1857.566175][ T74] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1857.566175][ T74] addrconf_dad_completed+0x12b/0xe20 [ 1857.566175][ T74] addrconf_dad_begin+0x310/0x670 [ 1857.566175][ T74] addrconf_dad_work+0x10b/0xab0 [ 1857.566175][ T74] process_one_work+0x84d/0x18a0 [ 1857.566175][ T74] worker_thread+0x587/0xd30 [ 1857.566175][ T74] kthread+0x28a/0x350 [ 1857.566175][ T74] ret_from_fork+0x31/0x70 [ 1857.566175][ T74] ret_from_fork_asm+0x1a/0x30 [ 1857.566175][ T74] [ 1857.568353][ T74] ref_tracker: veth4@ffff88800a4215e0 has 1/6 users at [ 1857.568353][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.568353][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.568353][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.568353][ T74] ip6_route_add+0x1c/0x140 [ 1857.568353][ T74] addrconf_prefix_route+0x2a6/0x430 [ 1857.568353][ T74] inet6_addr_add+0x4f8/0xa40 [ 1857.568353][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1857.568353][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.568353][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.568353][ T74] netlink_unicast+0x449/0x710 [ 1857.568353][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.568353][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.568353][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.568353][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.568353][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.568353][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.568353][ T74] [ 1857.570683][ T74] ref_tracker: veth4@ffff88800a4215e0 has 1/6 users at [ 1857.570683][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.570683][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.570683][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.570683][ T74] addrconf_f6i_alloc+0x315/0x560 [ 1857.570683][ T74] ipv6_add_addr+0x411/0x2000 [ 1857.570683][ T74] inet6_addr_add+0x30e/0xa40 [ 1857.570683][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1857.570683][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.570683][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.570683][ T74] netlink_unicast+0x449/0x710 [ 1857.570683][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.570683][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.570683][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.570683][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.570683][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.570683][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.570683][ T74] [ 1857.573178][ T74] ref_tracker: veth4@ffff88800a4215e0 has 1/6 users at [ 1857.573178][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.573178][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.573178][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.573178][ T74] ip6_route_add+0x1c/0x140 [ 1857.573178][ T74] addrconf_add_mroute+0x1ac/0x2c0 [ 1857.573178][ T74] addrconf_add_dev+0xe2/0x170 [ 1857.573178][ T74] inet6_addr_add+0x12f/0xa40 [ 1857.573178][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1857.573178][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.573178][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.573178][ T74] netlink_unicast+0x449/0x710 [ 1857.573178][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.573178][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.573178][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.573178][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.573178][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.573178][ T74] [ 1857.575669][ T74] ref_tracker: veth4@ffff88800a4215e0 has 1/6 users at [ 1857.575669][ T74] ipv6_add_dev+0x3ba/0x11c0 [ 1857.575669][ T74] ipv6_find_idev+0x102/0x170 [ 1857.575669][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1857.575669][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.575669][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.575669][ T74] netlink_unicast+0x449/0x710 [ 1857.575669][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.575669][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.575669][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.575669][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.575669][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.575669][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.575669][ T74] [ 1857.577611][ T74] ref_tracker: veth4@ffff88800a4215e0 has 1/6 users at [ 1857.577611][ T74] neigh_parms_alloc+0x1e5/0x510 [ 1857.577611][ T74] ipv6_add_dev+0x2fe/0x11c0 [ 1857.577611][ T74] ipv6_find_idev+0x102/0x170 [ 1857.577611][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1857.577611][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.577611][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.577611][ T74] netlink_unicast+0x449/0x710 [ 1857.577611][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.577611][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.577611][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.577611][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.577611][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.577611][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.577611][ T74] [ 1857.580248][ T74] unregister_netdevice: waiting for veth1 to become free. Usage count = 7 [ 1857.580996][ T74] ref_tracker: veth1@ffff8880080815e0 has 1/6 users at [ 1857.580996][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.580996][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.580996][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.580996][ T74] addrconf_f6i_alloc+0x265/0x560 [ 1857.580996][ T74] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1857.580996][ T74] addrconf_join_anycast+0x1c0/0x220 [ 1857.580996][ T74] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1857.580996][ T74] addrconf_dad_completed+0x12b/0xe20 [ 1857.580996][ T74] addrconf_dad_begin+0x310/0x670 [ 1857.580996][ T74] addrconf_dad_work+0x10b/0xab0 [ 1857.580996][ T74] process_one_work+0x84d/0x18a0 [ 1857.580996][ T74] worker_thread+0x587/0xd30 [ 1857.580996][ T74] kthread+0x28a/0x350 [ 1857.580996][ T74] ret_from_fork+0x31/0x70 [ 1857.580996][ T74] ret_from_fork_asm+0x1a/0x30 [ 1857.580996][ T74] [ 1857.583182][ T74] ref_tracker: veth1@ffff8880080815e0 has 1/6 users at [ 1857.583182][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.583182][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.583182][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.583182][ T74] ip6_route_add+0x1c/0x140 [ 1857.583182][ T74] addrconf_prefix_route+0x2a6/0x430 [ 1857.583182][ T74] inet6_addr_add+0x4f8/0xa40 [ 1857.583182][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1857.583182][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.583182][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.583182][ T74] netlink_unicast+0x449/0x710 [ 1857.583182][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.583182][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.583182][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.583182][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.583182][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.583182][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.583182][ T74] [ 1857.585523][ T74] ref_tracker: veth1@ffff8880080815e0 has 1/6 users at [ 1857.585523][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.585523][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.585523][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.585523][ T74] addrconf_f6i_alloc+0x315/0x560 [ 1857.585523][ T74] ipv6_add_addr+0x411/0x2000 [ 1857.585523][ T74] inet6_addr_add+0x30e/0xa40 [ 1857.585523][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1857.585523][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.585523][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.585523][ T74] netlink_unicast+0x449/0x710 [ 1857.585523][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.585523][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.585523][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.585523][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.585523][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.585523][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.585523][ T74] [ 1857.587975][ T74] ref_tracker: veth1@ffff8880080815e0 has 1/6 users at [ 1857.587975][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.587975][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.587975][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.587975][ T74] ip6_route_add+0x1c/0x140 [ 1857.587975][ T74] addrconf_add_mroute+0x1ac/0x2c0 [ 1857.587975][ T74] addrconf_add_dev+0xe2/0x170 [ 1857.587975][ T74] inet6_addr_add+0x12f/0xa40 [ 1857.587975][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1857.587975][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.587975][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.587975][ T74] netlink_unicast+0x449/0x710 [ 1857.587975][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.587975][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.587975][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.587975][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.587975][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.587975][ T74] [ 1857.590402][ T74] ref_tracker: veth1@ffff8880080815e0 has 1/6 users at [ 1857.590402][ T74] ipv6_add_dev+0x3ba/0x11c0 [ 1857.590402][ T74] ipv6_find_idev+0x102/0x170 [ 1857.590402][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1857.590402][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.590402][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.590402][ T74] netlink_unicast+0x449/0x710 [ 1857.590402][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.590402][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.590402][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.590402][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.590402][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.590402][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.590402][ T74] [ 1857.592365][ T74] ref_tracker: veth1@ffff8880080815e0 has 1/6 users at [ 1857.592365][ T74] neigh_parms_alloc+0x1e5/0x510 [ 1857.592365][ T74] ipv6_add_dev+0x2fe/0x11c0 [ 1857.592365][ T74] ipv6_find_idev+0x102/0x170 [ 1857.592365][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1857.592365][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.592365][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.592365][ T74] netlink_unicast+0x449/0x710 [ 1857.592365][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.592365][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.592365][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.592365][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.592365][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.592365][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.592365][ T74] [ 1857.594603][ T74] unregister_netdevice: waiting for veth2 to become free. Usage count = 7 [ 1857.594936][ T74] ref_tracker: veth2@ffff88800a6145e0 has 1/6 users at [ 1857.594936][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.594936][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.594936][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.594936][ T74] addrconf_f6i_alloc+0x265/0x560 [ 1857.594936][ T74] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1857.594936][ T74] addrconf_join_anycast+0x1c0/0x220 [ 1857.594936][ T74] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1857.594936][ T74] addrconf_dad_completed+0x12b/0xe20 [ 1857.594936][ T74] addrconf_dad_begin+0x310/0x670 [ 1857.594936][ T74] addrconf_dad_work+0x10b/0xab0 [ 1857.594936][ T74] process_one_work+0x84d/0x18a0 [ 1857.594936][ T74] worker_thread+0x587/0xd30 [ 1857.594936][ T74] kthread+0x28a/0x350 [ 1857.594936][ T74] ret_from_fork+0x31/0x70 [ 1857.594936][ T74] ret_from_fork_asm+0x1a/0x30 [ 1857.594936][ T74] [ 1857.597231][ T74] ref_tracker: veth2@ffff88800a6145e0 has 1/6 users at [ 1857.597231][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.597231][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.597231][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.597231][ T74] ip6_route_add+0x1c/0x140 [ 1857.597231][ T74] addrconf_prefix_route+0x2a6/0x430 [ 1857.597231][ T74] inet6_addr_add+0x4f8/0xa40 [ 1857.597231][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1857.597231][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.597231][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.597231][ T74] netlink_unicast+0x449/0x710 [ 1857.597231][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.597231][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.597231][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.597231][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.597231][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.597231][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.597231][ T74] [ 1857.599806][ T74] ref_tracker: veth2@ffff88800a6145e0 has 1/6 users at [ 1857.599806][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.599806][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.599806][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.599806][ T74] addrconf_f6i_alloc+0x315/0x560 [ 1857.599806][ T74] ipv6_add_addr+0x411/0x2000 [ 1857.599806][ T74] inet6_addr_add+0x30e/0xa40 [ 1857.599806][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1857.599806][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.599806][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.599806][ T74] netlink_unicast+0x449/0x710 [ 1857.599806][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.599806][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.599806][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.599806][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.599806][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.599806][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.599806][ T74] [ 1857.602285][ T74] ref_tracker: veth2@ffff88800a6145e0 has 1/6 users at [ 1857.602285][ T74] netdev_get_by_index+0x5e/0x80 [ 1857.602285][ T74] fib6_nh_init+0x3d8/0x1580 [ 1857.602285][ T74] ip6_route_info_create+0xf18/0x17d0 [ 1857.602285][ T74] ip6_route_add+0x1c/0x140 [ 1857.602285][ T74] addrconf_add_mroute+0x1ac/0x2c0 [ 1857.602285][ T74] addrconf_add_dev+0xe2/0x170 [ 1857.602285][ T74] inet6_addr_add+0x12f/0xa40 [ 1857.602285][ T74] inet6_rtm_newaddr+0x560/0x6b0 [ 1857.602285][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.602285][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.602285][ T74] netlink_unicast+0x449/0x710 [ 1857.602285][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.602285][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.602285][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.602285][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.602285][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.602285][ T74] [ 1857.604841][ T74] ref_tracker: veth2@ffff88800a6145e0 has 1/6 users at [ 1857.604841][ T74] ipv6_add_dev+0x3ba/0x11c0 [ 1857.604841][ T74] ipv6_find_idev+0x102/0x170 [ 1857.604841][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1857.604841][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.604841][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.604841][ T74] netlink_unicast+0x449/0x710 [ 1857.604841][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.604841][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.604841][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.604841][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.604841][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.604841][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.604841][ T74] [ 1857.606845][ T74] ref_tracker: veth2@ffff88800a6145e0 has 1/6 users at [ 1857.606845][ T74] neigh_parms_alloc+0x1e5/0x510 [ 1857.606845][ T74] ipv6_add_dev+0x2fe/0x11c0 [ 1857.606845][ T74] ipv6_find_idev+0x102/0x170 [ 1857.606845][ T74] inet6_rtm_newaddr+0x37c/0x6b0 [ 1857.606845][ T74] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1857.606845][ T74] netlink_rcv_skb+0x130/0x360 [ 1857.606845][ T74] netlink_unicast+0x449/0x710 [ 1857.606845][ T74] netlink_sendmsg+0x723/0xbe0 [ 1857.606845][ T74] ____sys_sendmsg+0x7b2/0xa10 [ 1857.606845][ T74] ___sys_sendmsg+0xee/0x170 [ 1857.606845][ T74] __sys_sendmsg+0xcd/0x170 [ 1857.606845][ T74] do_syscall_64+0xc6/0x1e0 [ 1857.606845][ T74] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1857.606845][ T74]