[ 502.334893][ T10] unregister_netdevice: waiting for ns1eth4 to become free. Usage count = 4 [ 502.335263][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 502.335263][ T10] netdev_get_by_index+0x5e/0x80 [ 502.335263][ T10] fib6_nh_init+0x3d8/0x15b0 [ 502.335263][ T10] ip6_route_info_create+0xf18/0x17d0 [ 502.335263][ T10] addrconf_f6i_alloc+0x244/0x410 [ 502.335263][ T10] ipv6_add_addr+0x411/0x2000 [ 502.335263][ T10] inet6_addr_add+0x30e/0xa40 [ 502.335263][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 502.335263][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.335263][ T10] netlink_rcv_skb+0x130/0x360 [ 502.335263][ T10] netlink_unicast+0x449/0x710 [ 502.335263][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.335263][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.335263][ T10] ___sys_sendmsg+0xee/0x170 [ 502.335263][ T10] __sys_sendmsg+0xcd/0x170 [ 502.335263][ T10] do_syscall_64+0xc6/0x1e0 [ 502.335263][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.335263][ T10] [ 502.337296][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 502.337296][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 502.337296][ T10] ipv6_find_idev+0x102/0x170 [ 502.337296][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.337296][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.337296][ T10] netlink_rcv_skb+0x130/0x360 [ 502.337296][ T10] netlink_unicast+0x449/0x710 [ 502.337296][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.337296][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.337296][ T10] ___sys_sendmsg+0xee/0x170 [ 502.337296][ T10] __sys_sendmsg+0xcd/0x170 [ 502.337296][ T10] do_syscall_64+0xc6/0x1e0 [ 502.337296][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.337296][ T10] [ 502.338831][ T10] ref_tracker: ns1eth4@ffff88800384c5c0 has 1/3 users at [ 502.338831][ T10] neigh_parms_alloc+0x1e5/0x510 [ 502.338831][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 502.338831][ T10] ipv6_find_idev+0x102/0x170 [ 502.338831][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.338831][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.338831][ T10] netlink_rcv_skb+0x130/0x360 [ 502.338831][ T10] netlink_unicast+0x449/0x710 [ 502.338831][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.338831][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.338831][ T10] ___sys_sendmsg+0xee/0x170 [ 502.338831][ T10] __sys_sendmsg+0xcd/0x170 [ 502.338831][ T10] do_syscall_64+0xc6/0x1e0 [ 502.338831][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.338831][ T10] [ 502.340528][ T10] unregister_netdevice: waiting for ns2eth4 to become free. Usage count = 4 [ 502.340814][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 502.340814][ T10] netdev_get_by_index+0x5e/0x80 [ 502.340814][ T10] fib6_nh_init+0x3d8/0x15b0 [ 502.340814][ T10] ip6_route_info_create+0xf18/0x17d0 [ 502.340814][ T10] addrconf_f6i_alloc+0x244/0x410 [ 502.340814][ T10] ipv6_add_addr+0x411/0x2000 [ 502.340814][ T10] inet6_addr_add+0x30e/0xa40 [ 502.340814][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 502.340814][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.340814][ T10] netlink_rcv_skb+0x130/0x360 [ 502.340814][ T10] netlink_unicast+0x449/0x710 [ 502.340814][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.340814][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.340814][ T10] ___sys_sendmsg+0xee/0x170 [ 502.340814][ T10] __sys_sendmsg+0xcd/0x170 [ 502.340814][ T10] do_syscall_64+0xc6/0x1e0 [ 502.340814][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.340814][ T10] [ 502.342778][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 502.342778][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 502.342778][ T10] ipv6_find_idev+0x102/0x170 [ 502.342778][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.342778][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.342778][ T10] netlink_rcv_skb+0x130/0x360 [ 502.342778][ T10] netlink_unicast+0x449/0x710 [ 502.342778][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.342778][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.342778][ T10] ___sys_sendmsg+0xee/0x170 [ 502.342778][ T10] __sys_sendmsg+0xcd/0x170 [ 502.342778][ T10] do_syscall_64+0xc6/0x1e0 [ 502.342778][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.342778][ T10] [ 502.344300][ T10] ref_tracker: ns2eth4@ffff888007a895c0 has 1/3 users at [ 502.344300][ T10] neigh_parms_alloc+0x1e5/0x510 [ 502.344300][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 502.344300][ T10] ipv6_find_idev+0x102/0x170 [ 502.344300][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.344300][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.344300][ T10] netlink_rcv_skb+0x130/0x360 [ 502.344300][ T10] netlink_unicast+0x449/0x710 [ 502.344300][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.344300][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.344300][ T10] ___sys_sendmsg+0xee/0x170 [ 502.344300][ T10] __sys_sendmsg+0xcd/0x170 [ 502.344300][ T10] do_syscall_64+0xc6/0x1e0 [ 502.344300][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.344300][ T10] [ 502.345952][ T10] unregister_netdevice: waiting for ns1eth3 to become free. Usage count = 4 [ 502.346215][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 502.346215][ T10] netdev_get_by_index+0x5e/0x80 [ 502.346215][ T10] fib6_nh_init+0x3d8/0x15b0 [ 502.346215][ T10] ip6_route_info_create+0xf18/0x17d0 [ 502.346215][ T10] addrconf_f6i_alloc+0x244/0x410 [ 502.346215][ T10] ipv6_add_addr+0x411/0x2000 [ 502.346215][ T10] inet6_addr_add+0x30e/0xa40 [ 502.346215][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 502.346215][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.346215][ T10] netlink_rcv_skb+0x130/0x360 [ 502.346215][ T10] netlink_unicast+0x449/0x710 [ 502.346215][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.346215][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.346215][ T10] ___sys_sendmsg+0xee/0x170 [ 502.346215][ T10] __sys_sendmsg+0xcd/0x170 [ 502.346215][ T10] do_syscall_64+0xc6/0x1e0 [ 502.346215][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.346215][ T10] [ 502.348167][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 502.348167][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 502.348167][ T10] ipv6_find_idev+0x102/0x170 [ 502.348167][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.348167][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.348167][ T10] netlink_rcv_skb+0x130/0x360 [ 502.348167][ T10] netlink_unicast+0x449/0x710 [ 502.348167][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.348167][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.348167][ T10] ___sys_sendmsg+0xee/0x170 [ 502.348167][ T10] __sys_sendmsg+0xcd/0x170 [ 502.348167][ T10] do_syscall_64+0xc6/0x1e0 [ 502.348167][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.348167][ T10] [ 502.349674][ T10] ref_tracker: ns1eth3@ffff888002ae95c0 has 1/3 users at [ 502.349674][ T10] neigh_parms_alloc+0x1e5/0x510 [ 502.349674][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 502.349674][ T10] ipv6_find_idev+0x102/0x170 [ 502.349674][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.349674][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.349674][ T10] netlink_rcv_skb+0x130/0x360 [ 502.349674][ T10] netlink_unicast+0x449/0x710 [ 502.349674][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.349674][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.349674][ T10] ___sys_sendmsg+0xee/0x170 [ 502.349674][ T10] __sys_sendmsg+0xcd/0x170 [ 502.349674][ T10] do_syscall_64+0xc6/0x1e0 [ 502.349674][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.349674][ T10] [ 502.351329][ T10] unregister_netdevice: waiting for ns2eth3 to become free. Usage count = 4 [ 502.351591][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 502.351591][ T10] netdev_get_by_index+0x5e/0x80 [ 502.351591][ T10] fib6_nh_init+0x3d8/0x15b0 [ 502.351591][ T10] ip6_route_info_create+0xf18/0x17d0 [ 502.351591][ T10] addrconf_f6i_alloc+0x244/0x410 [ 502.351591][ T10] ipv6_add_addr+0x411/0x2000 [ 502.351591][ T10] inet6_addr_add+0x30e/0xa40 [ 502.351591][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 502.351591][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.351591][ T10] netlink_rcv_skb+0x130/0x360 [ 502.351591][ T10] netlink_unicast+0x449/0x710 [ 502.351591][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.351591][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.351591][ T10] ___sys_sendmsg+0xee/0x170 [ 502.351591][ T10] __sys_sendmsg+0xcd/0x170 [ 502.351591][ T10] do_syscall_64+0xc6/0x1e0 [ 502.351591][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.351591][ T10] [ 502.353552][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 502.353552][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 502.353552][ T10] ipv6_find_idev+0x102/0x170 [ 502.353552][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.353552][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.353552][ T10] netlink_rcv_skb+0x130/0x360 [ 502.353552][ T10] netlink_unicast+0x449/0x710 [ 502.353552][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.353552][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.353552][ T10] ___sys_sendmsg+0xee/0x170 [ 502.353552][ T10] __sys_sendmsg+0xcd/0x170 [ 502.353552][ T10] do_syscall_64+0xc6/0x1e0 [ 502.353552][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.353552][ T10] [ 502.355058][ T10] ref_tracker: ns2eth3@ffff888006a515c0 has 1/3 users at [ 502.355058][ T10] neigh_parms_alloc+0x1e5/0x510 [ 502.355058][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 502.355058][ T10] ipv6_find_idev+0x102/0x170 [ 502.355058][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.355058][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.355058][ T10] netlink_rcv_skb+0x130/0x360 [ 502.355058][ T10] netlink_unicast+0x449/0x710 [ 502.355058][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.355058][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.355058][ T10] ___sys_sendmsg+0xee/0x170 [ 502.355058][ T10] __sys_sendmsg+0xcd/0x170 [ 502.355058][ T10] do_syscall_64+0xc6/0x1e0 [ 502.355058][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.355058][ T10] [ 502.357108][ T10] unregister_netdevice: waiting for ns1eth2 to become free. Usage count = 4 [ 502.357370][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 502.357370][ T10] netdev_get_by_index+0x5e/0x80 [ 502.357370][ T10] fib6_nh_init+0x3d8/0x15b0 [ 502.357370][ T10] ip6_route_info_create+0xf18/0x17d0 [ 502.357370][ T10] addrconf_f6i_alloc+0x244/0x410 [ 502.357370][ T10] ipv6_add_addr+0x411/0x2000 [ 502.357370][ T10] inet6_addr_add+0x30e/0xa40 [ 502.357370][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 502.357370][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.357370][ T10] netlink_rcv_skb+0x130/0x360 [ 502.357370][ T10] netlink_unicast+0x449/0x710 [ 502.357370][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.357370][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.357370][ T10] ___sys_sendmsg+0xee/0x170 [ 502.357370][ T10] __sys_sendmsg+0xcd/0x170 [ 502.357370][ T10] do_syscall_64+0xc6/0x1e0 [ 502.357370][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.357370][ T10] [ 502.359318][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 502.359318][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 502.359318][ T10] ipv6_find_idev+0x102/0x170 [ 502.359318][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.359318][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.359318][ T10] netlink_rcv_skb+0x130/0x360 [ 502.359318][ T10] netlink_unicast+0x449/0x710 [ 502.359318][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.359318][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.359318][ T10] ___sys_sendmsg+0xee/0x170 [ 502.359318][ T10] __sys_sendmsg+0xcd/0x170 [ 502.359318][ T10] do_syscall_64+0xc6/0x1e0 [ 502.359318][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.359318][ T10] [ 502.360828][ T10] ref_tracker: ns1eth2@ffff8880068315c0 has 1/3 users at [ 502.360828][ T10] neigh_parms_alloc+0x1e5/0x510 [ 502.360828][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 502.360828][ T10] ipv6_find_idev+0x102/0x170 [ 502.360828][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.360828][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.360828][ T10] netlink_rcv_skb+0x130/0x360 [ 502.360828][ T10] netlink_unicast+0x449/0x710 [ 502.360828][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.360828][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.360828][ T10] ___sys_sendmsg+0xee/0x170 [ 502.360828][ T10] __sys_sendmsg+0xcd/0x170 [ 502.360828][ T10] do_syscall_64+0xc6/0x1e0 [ 502.360828][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.360828][ T10] [ 502.362524][ T10] unregister_netdevice: waiting for ns2eth2 to become free. Usage count = 4 [ 502.362835][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 502.362835][ T10] netdev_get_by_index+0x5e/0x80 [ 502.362835][ T10] fib6_nh_init+0x3d8/0x15b0 [ 502.362835][ T10] ip6_route_info_create+0xf18/0x17d0 [ 502.362835][ T10] addrconf_f6i_alloc+0x244/0x410 [ 502.362835][ T10] ipv6_add_addr+0x411/0x2000 [ 502.362835][ T10] inet6_addr_add+0x30e/0xa40 [ 502.362835][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 502.362835][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.362835][ T10] netlink_rcv_skb+0x130/0x360 [ 502.362835][ T10] netlink_unicast+0x449/0x710 [ 502.362835][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.362835][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.362835][ T10] ___sys_sendmsg+0xee/0x170 [ 502.362835][ T10] __sys_sendmsg+0xcd/0x170 [ 502.362835][ T10] do_syscall_64+0xc6/0x1e0 [ 502.362835][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.362835][ T10] [ 502.364932][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 502.364932][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 502.364932][ T10] ipv6_find_idev+0x102/0x170 [ 502.364932][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.364932][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.364932][ T10] netlink_rcv_skb+0x130/0x360 [ 502.364932][ T10] netlink_unicast+0x449/0x710 [ 502.364932][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.364932][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.364932][ T10] ___sys_sendmsg+0xee/0x170 [ 502.364932][ T10] __sys_sendmsg+0xcd/0x170 [ 502.364932][ T10] do_syscall_64+0xc6/0x1e0 [ 502.364932][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.364932][ T10] [ 502.366619][ T10] ref_tracker: ns2eth2@ffff888006bd15c0 has 1/3 users at [ 502.366619][ T10] neigh_parms_alloc+0x1e5/0x510 [ 502.366619][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 502.366619][ T10] ipv6_find_idev+0x102/0x170 [ 502.366619][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.366619][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.366619][ T10] netlink_rcv_skb+0x130/0x360 [ 502.366619][ T10] netlink_unicast+0x449/0x710 [ 502.366619][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.366619][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.366619][ T10] ___sys_sendmsg+0xee/0x170 [ 502.366619][ T10] __sys_sendmsg+0xcd/0x170 [ 502.366619][ T10] do_syscall_64+0xc6/0x1e0 [ 502.366619][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.366619][ T10] [ 502.368486][ T10] unregister_netdevice: waiting for ns1eth1 to become free. Usage count = 4 [ 502.368799][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 502.368799][ T10] netdev_get_by_index+0x5e/0x80 [ 502.368799][ T10] fib6_nh_init+0x3d8/0x15b0 [ 502.368799][ T10] ip6_route_info_create+0xf18/0x17d0 [ 502.368799][ T10] addrconf_f6i_alloc+0x244/0x410 [ 502.368799][ T10] ipv6_add_addr+0x411/0x2000 [ 502.368799][ T10] inet6_addr_add+0x30e/0xa40 [ 502.368799][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 502.368799][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.368799][ T10] netlink_rcv_skb+0x130/0x360 [ 502.368799][ T10] netlink_unicast+0x449/0x710 [ 502.368799][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.368799][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.368799][ T10] ___sys_sendmsg+0xee/0x170 [ 502.368799][ T10] __sys_sendmsg+0xcd/0x170 [ 502.368799][ T10] do_syscall_64+0xc6/0x1e0 [ 502.368799][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.368799][ T10] [ 502.370996][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 502.370996][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 502.370996][ T10] ipv6_find_idev+0x102/0x170 [ 502.370996][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.370996][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.370996][ T10] netlink_rcv_skb+0x130/0x360 [ 502.370996][ T10] netlink_unicast+0x449/0x710 [ 502.370996][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.370996][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.370996][ T10] ___sys_sendmsg+0xee/0x170 [ 502.370996][ T10] __sys_sendmsg+0xcd/0x170 [ 502.370996][ T10] do_syscall_64+0xc6/0x1e0 [ 502.370996][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.370996][ T10] [ 502.372687][ T10] ref_tracker: ns1eth1@ffff8880064845c0 has 1/3 users at [ 502.372687][ T10] neigh_parms_alloc+0x1e5/0x510 [ 502.372687][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 502.372687][ T10] ipv6_find_idev+0x102/0x170 [ 502.372687][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.372687][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.372687][ T10] netlink_rcv_skb+0x130/0x360 [ 502.372687][ T10] netlink_unicast+0x449/0x710 [ 502.372687][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.372687][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.372687][ T10] ___sys_sendmsg+0xee/0x170 [ 502.372687][ T10] __sys_sendmsg+0xcd/0x170 [ 502.372687][ T10] do_syscall_64+0xc6/0x1e0 [ 502.372687][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.372687][ T10] [ 502.374557][ T10] unregister_netdevice: waiting for ns2eth1 to become free. Usage count = 4 [ 502.374873][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 502.374873][ T10] netdev_get_by_index+0x5e/0x80 [ 502.374873][ T10] fib6_nh_init+0x3d8/0x15b0 [ 502.374873][ T10] ip6_route_info_create+0xf18/0x17d0 [ 502.374873][ T10] addrconf_f6i_alloc+0x244/0x410 [ 502.374873][ T10] ipv6_add_addr+0x411/0x2000 [ 502.374873][ T10] inet6_addr_add+0x30e/0xa40 [ 502.374873][ T10] inet6_rtm_newaddr+0x560/0x6b0 [ 502.374873][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.374873][ T10] netlink_rcv_skb+0x130/0x360 [ 502.374873][ T10] netlink_unicast+0x449/0x710 [ 502.374873][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.374873][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.374873][ T10] ___sys_sendmsg+0xee/0x170 [ 502.374873][ T10] __sys_sendmsg+0xcd/0x170 [ 502.374873][ T10] do_syscall_64+0xc6/0x1e0 [ 502.374873][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.374873][ T10] [ 502.377007][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 502.377007][ T10] ipv6_add_dev+0x3ba/0x11c0 [ 502.377007][ T10] ipv6_find_idev+0x102/0x170 [ 502.377007][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.377007][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.377007][ T10] netlink_rcv_skb+0x130/0x360 [ 502.377007][ T10] netlink_unicast+0x449/0x710 [ 502.377007][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.377007][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.377007][ T10] ___sys_sendmsg+0xee/0x170 [ 502.377007][ T10] __sys_sendmsg+0xcd/0x170 [ 502.377007][ T10] do_syscall_64+0xc6/0x1e0 [ 502.377007][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.377007][ T10] [ 502.378690][ T10] ref_tracker: ns2eth1@ffff8880069345c0 has 1/3 users at [ 502.378690][ T10] neigh_parms_alloc+0x1e5/0x510 [ 502.378690][ T10] ipv6_add_dev+0x2fe/0x11c0 [ 502.378690][ T10] ipv6_find_idev+0x102/0x170 [ 502.378690][ T10] inet6_rtm_newaddr+0x37c/0x6b0 [ 502.378690][ T10] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 502.378690][ T10] netlink_rcv_skb+0x130/0x360 [ 502.378690][ T10] netlink_unicast+0x449/0x710 [ 502.378690][ T10] netlink_sendmsg+0x723/0xbe0 [ 502.378690][ T10] ____sys_sendmsg+0x7b2/0xa10 [ 502.378690][ T10] ___sys_sendmsg+0xee/0x170 [ 502.378690][ T10] __sys_sendmsg+0xcd/0x170 [ 502.378690][ T10] do_syscall_64+0xc6/0x1e0 [ 502.378690][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 502.378690][ T10]